gaswärme international Mediainformation 75 Years Zeitschrift für gasbeheizte Thermoprozesse Heat Treatment Congress

Transcription

1 gwi gaswärme international Zeitschrift für gasbeheizte Thermoprozesse The Key Event for Thermo Process Technology InterContinental Hotel Düsseldorf, Germany June 2017 Heat Treatment Congress Years 75 Years 75 Years 75 Years 5 Years 75 Years 75 Years Mediainformation

2 Inhaltsverzeichnis Editorial Team...3 Magazin: Characteristics in brief / Boards and members...4 Product group...5 Costumers and Partners...6 Editorial schedule Advertising rates Advertising formats...11 Prozesswärme MARKT Technical data...18 Circulation analysis / Distribution...19 Portal: Prozesswärme online Banner formats and prices Prozesswärme MARKT Job market...26 Prozesswärme NEWS Newsletter Technical books:...31 Heat and Mass Transfer for High Temperature Processes Handbuch HärtereiPraxis Praxishandbuch Thermoprozesstechnik, Band International Trade Fairs:

3 Editorial Team IHR VERLAGSTEAM STELLT SICH VOR: Editor Dipl.-Ing. Stephan Schalm Telefon: Telefax: Advertising Sale: Ute Perkovic Telefon: Telefax: Editorial Office: Sabrina Finke M.A. Telefon: Telefax: Advertising Administration: Tanja Schneider Telefon: Telefax: Editorial Department: Thomas Schneidnd Telefon: Telefax: Editorial Department: Lena Langenkämper Telefon: Telefax:

4 Characters in brief/boards and members Characteristics in brief: - elektrowärme international has for decades been the technical journal for the electrothermal process-engineering and electrically heated industrial furnace engineering sectors. This industry-specific journal publishes highly practice-orientated experience and application reports by well-known technical experts and provides the specialist world with direct and comprehensive information and aids to decision across the entire field of industrial electrothermal applications (heating, annealing, hardening, melting and casting), as well as covering the construction and equipping of industrial furnaces and industrial-scale electrothermal installations. The editorial scope is rounded off by news and events from industry, research, the specialist associations and individual companies, plus future-orientated product previews of new and further developments in the industry. Advisory board: Dipl.-Ing. H. Linn, Linn High Therm GmbH, Prof. Dr.-Ing. H. Pfeifer, Lehrstuhl für Hochtemperaturtechnik an der RWTH Aachen, T. Schreiter, ABP Induction Systems GmbH, Dr.-Ing. A. Seitzer, Himmelwerk GmbH, Prof. Dr.-Ing. H. Stiele, Hochschule Albstadt-Sigmaringen, Dipl.-Ing. M. D. Werner, Otto Junker GmbH, Dr.-Ing. T. Würz, VDMA e. V Editorial team: Dipl.-Ing. F. Andrä, Prof. Dr.-Ing. E. Baake, Dipl.-Ing. S. Beer, Dr.-Ing. F. Beneke, Dipl.-Ing. A. Book, Dr.-Ing S. Dappen, Dr.-Ing. E. Dötsch, Dipl.-Ing. W. Goy, Dipl.-Ing. P. Haase,Dr.-Ing. O. Irretier, Dr.-Ing. C. Krause, Dr. M. Reinhold, Dipl.-Wirtsch.-Ing. St. Schubotz, Dr.-Ing. D. Trauzeddel, Dr.-Ing. E. Wrona, Dr.-Ing. P. Wübben The journal's precise editorial focus makes it the ideal platform for your advertising. Official publication of: Institute of Electrotechnology, University Hannover and VDMA Associations Thermo Process Technology, Frankfurt am Main Editors: Prof. Dr.-Ing. B. Nacke, Institut für Elektroprozesstechnik, Leibniz Universität Hannover, Hon.-Prof. Dr. J. Rinnhofer, SMS Elotherm GmbH 4

5 Product group High-power partner for your corporate communications elektrowärme international Magazin edition Prozesswärme Technical books Portal Prozesswärme NEWS Newsletter Prozesswärme MARKT Buyer's guide Community Who is who? Jobs Job market 5

6 Customers and partners (Selection) Partner: 6

7 Editorial schedule 2017 Issue Date Topical theme Trade fairs/exhibitions/additional distribution 1 March Advertising-deadline: Publication date: June Advertising-deadline: Publication date: Inductive Heating Heat Treatment in Praxis Energy effiency and innovative heating technology ITPS Special Heat Treatment in Praxis 2017, , Dortmund ITPS 2017, , Düsseldorf 3 September Advertising-deadline: Publication date: December Advertising-deadline: Publication date: Heat Treatment Congress special Inductive melting/materials Heat Treatment Congress 2017, Cologne Änderungen vorbehalten 7

8 Advertising rates with effect from Jan. 1, 2017 Place of publication: Essen, Germany 1 Journal format: DIN A4, width 210 mm, height 297 mm 2 Printed page area: Width 187,5 mm, height 241 mm 3 Printing process, material for publication: Offset printing, CTP process up to 70 raster, adhesive binding See "Technical data" for material for publication. 4 Dates: Frequency of publication: Publication date: Advertising deadline: 4 Editions annually see editorial schedule see editorial schedule 5 Publisher: Vulkan-Verlag GmbH, Friedrich-Ebert-Str. 55, Essen Phone: Fax: Advertising Sales: Ute Perkovic Phone: Fax: u.perkovic@vulkan-verlag.de Advertising Admin: Tanja Schneider Phone: Fax: schneider@di-verlag.de 6 Terms of payment: All invoicees are payable without deduction within 15 days from date of invoice. A 3% discount is deductible in case of payment in advance. The invoice amount ist stated on the confirmation of order. Interest will be charged on arrears of payment. Direct debit facilities are avialable. If older invoices are outstanding, discount can not be granted VAT No.: DE Account details: Nassauische Sparkasse Wiesbaden BIC/SWIFT NASSDE55XXX IBAN DE USt-IdNr. (VAT): DE Advertisement format and rates: Value Added Tax at the rate currently applicable must be added to all prices quoted. Formats for ads in printed page area, width x height in mm basic rate b/w 2-colour 3-colour 4-colour 1/1 page 182 x 255 2,025 2,425 2,825 3,225 Junior page 132 x 207 1,200 1,600 2,000 2,400 1/2 page 1/3 page 1/4 page 1/8 page 89 x x 125 1,060 1,460 1,860 2, x x ,215 1,615 2, x x ,375 1, x x

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11 11 Advertising formats heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/1 page 210 x 297 mm + 3 mm trimming allowance heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/1 page 1/2 page portait 102 x 297 mm + 3 mm trimming allowance in printed page area 89 x 255 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/1 page in printed page area 182 x 255 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/2 page landscape 210 x 148 mm + 3 mm trimming allowance in printed page area 182 x 125 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/2 page landscape 210 x 148 mm + 3 mm trimming allowance in printed page area 182 x 125 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet Junior Page 132 x mm trimming allowance in printed page area on request 1/3 page portait 71 x 297 mm + 3 mm trimming allowance in printed page area 60 x 255 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/3 page landscape 210 x 102 mm + 3 mm trimming allowance in printed page area 182 x 80 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/3 page landscape 210 x 102 mm + 3 mm trimming allowance in printed page area 182 x 80 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/4 page portait 103 x 144 mm + 3 mm trimming allowance in printed page area 89 x 125 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/4 page landscape 210 x 82 mm + 3 mm trimming allowance in printed page area 182 x 62 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/4 page portait 103 x 144 mm + 3 mm trimming allowance in printed page area 89 x 125 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/4 page landscape 210 x 82 mm + 3 mm trimming allowance in printed page area 182 x 62 mm heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet heat processing heat processing Infrared drying with porous burners in industrial environments by Michael Angerstein The use of gas infrared burners in general provides huge advantages in many drying and heating processes. Porous burners, being the only short-wave gas infrared burners in the world, are quite special in this regard. The particular features offered by porous burners will be addressed further down in this article. T hey are ready for operation in just a matter of minutes, meaning that the long heat-up phase needed with many convection heaters is no longer necessary. And yet, when using gas infrared burners, the heat transferred is often so high that the drying phase can be much shorter than with circulating air dryers, or higher drying performance can be achieved with the same drying time. operating principle Heat from infrared radiation is transmitted without any kind of contact from the radiation source (the gas infrared burner) to the recipient of the radiation. The dry air allows 100 % of this radiation to pass through. Only when the infrared radiation meets a surface is the radiated energy converted into heat. This operating principle will be very familiar to anyone in a wintery environment sensing the warming effect of the sun on their skin. The highly efficient gas infrared radiant heaters used for low-energy space heating work in a quite similar fashion. Gas infrared burners used for drying in industrial environments are burners that are operated using a combustion air fan. This provides them among other things with better control facilities and allows them to achieve the kind of reproducibility in output that is required in industrial processes. Fig. 1 is a schematic diagram showing an example structure of a gas infrared unit. The individual burners are lined up in a series to create any desired length. Two lines of burners are usually joined to form a twin row. Single or twin rows have ducts fitted on the sides, and this arrangement then forms a single unit. It is possible to arrange any number of these units behind one another. Fig. 1 shows two of these twin rows as an example. Please note that the burner is supplied with gas and combustion air separately and is entirely independent from the ambient air circulation system, which is also depicted. Gas and combustion air are supplied to the burner and burned there. The hot surfaces of the burner emit a very even infrared radiation that is then used for drying or heating. The hot gases from the combustion process and the solvents evaporated in the drying process usually steam are collected via the suction ducts. optimum energy use If the product to be dried permits, the heat energy from the combustion process can be further exploited. In this case, only part of the flow is discharged through the roof, thus preventing the ambient air circulation system from being saturated for example with the vaporous solvent, which is usually steam. The discharged portion must have fresh air added to it, which is achieved by means of a corresponding valve control system. The largest part of the still-hot gases remain in the ambient air circulation system and are blown via the pressure-side ducts onto the product to be dried. This means that, in addition to the radiated heat, there is also convection, thus deriving the maximum possible benefit from the energy. HigH level flexibility Gas infrared burners are large-surface burners, which means that the radiation is emitted very evenly from the entire radiating surface. By arranging burners as appropriate, they can be adapted to the shape of the workpieces. The ability to switch individual rows of burners on and off provides a great deal of flexibility. Systems are also used in practice that enable the radiation width to be modified. By switching off unneeded burners in the case of narrower web widths, for example this allows even more energy to be saved and the already low operating costs to be reduced even further by saving gas. Moreover, the surface burners can be adjusted smoothly to any value between at least 50 % and 100 % output. The porous burner can even achieve values of between around 20 % and 100 %. Large-surface products are particularly well-suited to drying processes with gas infrared burners in principle. Indeed, gas infrared burners are used very successfully to dry coated paper web or coated steel strip, to quote examples. The paper industry works with widths of up to 11 m running at speeds of more than 2000 m/min. While medium-wave gas infrared burners have been in use for decades to dry paper that has been coated on one or both sides, the new type of porous burners have only been in use since Porous burners have more than proven their value in the harsh arena of everyday practical use. Measurements have confirmed that the high performance of the porous burner (connected loads of up to 1000 kw/m² possible) does not impair the quality of the paper in any way. The much higher supply of energy is used to the same extent for drying as is the case with the much weaker medium-wave burners. This means that in the paper industry using the same available space, meaning that no changes are made to the route taken by the web when switching to a porous burner system the drying performance can be increased many times over. Also of interest is the ability to balance out certain variations in moisture content across the width of the paper web. To achieve this, the required number of burner rows are fitted with a profile correction system. This enables each individual burner in the row to supply varying output, based on the demands of the moisture profile (Fig. 2). The humidity is measured continuously over the width of the web and the burner output of each individual burner is automatically modified so that the residual moisture beyond the IR zone is as even as possible throughout the width of the web. porous burners for drying coated steel strips The use of porous burner to dry coated steel strip is relatively new. The speeds that the strip move at here are much lower than those of the paper industry, but that does not mean that the task at hand is any less complex, as shown by the following requirements profile: Strip width: 700 to 1750 mm Strip thickness: 0.25 to 3.00 mm Strip speed: 3 to 130 m/min Coating weight: 4 g/m² per side, wet Strip supply temperature: 35 C Strip outlet temperature: min. 100 C PMT (peak metal temperature) for each line side. The heated width could be switched to 900, 1200, 1500 width levels. Therefore, with strip of 700 mm in width, a heated width of 900 mm was used, while with a strip width of 1750 mm, a width of 1800 mm was used for using. The different heated widths are shown in Fig. 3. Output is regulated on the basis of the thickness of the material, the speed and the coating material. The various parameters and settings are stored in the PLC as a formula to enable the dryer to enter the correct mode of operation automatically when a stored formula is preselected. This means that the correct width, the required output and the appropriate number of burner rows are automatically activated. Each twin row is fitted with a swivel joint that enables it to be folded away 90 when no longer in use. The swivel joint was fitted for two reasons: 1. The first is that in the event that the strip stops suddenly, the rows can be folded down and operated in low-load mode. This ensures that the strip does not overheat. When the strip is moving again, production can be resumed almost immediately. 2. Furthermore, in the interest of easier maintenance, where strip is running at a height of over 2 m, platforms are integrated into the dryers. This enables easy access to the burners while they are folded away. And replacing a burner is also very simple. Simply remove the four screws on the rear side of the burner, then the new burner and its mounting can be fitted. There is no need to disconnect a gas hose, valve or similar to replace a burner. In another case, there was a need to increase the output of a dryer, because the circulating air dryer in use until then simply did not provide enough drying performance, even though the ambient air temperature was set as high as possible. Strip width: 650 to 1650 mm Strip thickness: 0.3 to 3.00 mm Strip speed: 150 m/min Coating weight: 5 g/m² per side, wet 1/1 printed page area 1/2 page landscape 1/2 page landscape Junior Page 1/3 page portrait 1/3 page landscape 1/3 page landscape 1/4 page portrait 1/4 page landscape 1/4 page portrait 1/4 page landscape 1/8 page landscape in printed page area 182 x 31 mm 1/8 page in printed page area 89 x 62 mm 1/8 page 1/8 page 1/2 page protrait 1/8 landscape 1/8 landscape all formats in width x height

12 Prozesswärme MARKT + To: Vulkan-Verlag GmbH Attn. Ute Perkovic Postfach Essen, Germany Fax: u.perkovic@vulkan-verlag.de I/We hereby order for 2017 Contact adress for proofs Signature 12

13 Prozesswärme MARKT Spotlight your company s products and services Enter your company address here: Company Postcode/Zip/Town/City Street address Country/State Telephone Fax Website Specimen 1. Main entry for the year (heat processing 1 4 / 2017), incl. logo and link to your homepage. Vulkan-Verlag GmbH Friedrich-Ebert-Str Essen, Deutschland Tel Fax info@vulkan-verlag.de Every additional entry: 50 % discount Subcategories free of charge Entries run to the end of the calendar year and then terminate automatically. Rates are charged proportionally where placement starts during the ongoing year. Online-version of this order form under 13

14 Prozesswärme MARKT Please select the headings under which your entry is to be included: I. Thermoprozessanlagen für industrielle Wärmebehandlungsverfahren Thermische Gnnung (Erzeugen) Ausschmelzen Brennen Kalzinieren Löten Rösten Sintern Umschmelzen Schmelzen, Gießen Induktives Schmelzen Induktives Rühren/Bremsen Schmelzen (allgemein) Transport, Dosieren Warmhalten (Flüssigphase) Warmhalten und Gießen Pulvermetallurgie Entwachsen Sintern Wärmen An- und Vorwärmen Dielektrische Erwärmung Elektronenstrahlerwärmung Erwärmen Funkenerosion Impulswärmen Induktionsbolzenerwärmung Induktive Erwärmung Konduktive Erwärmung Lasererwärmung Mikrowellen- und Infraroterwärmung Nachwärmen Plasmaerwärmen Thixo-Forming Vakuum- und Schutzgaserwärmung Warmhalten Widerstandserwärmung Wärmebehandlung Aufkohlen Biegen Carbonitrieren Carburieren Dehydrieren Glühen Härten Induktionshärten Kühlen Laser Conditioning Lösungsglühen und Auslagern Nitrieren Randschichthärten Schmieden Sintern Tempern Trocknen Wärmerückgnnung Abkühlen und Abschrecken 14

15 Prozesswärme MARKT Reinigen und Trocknen Oberflächenbehandlung Induktive Erwärmung zur Beschichtung Metallisches Beschichten Nichtmetallisches Beschichten Fügen Löten Schrumpfen Schweißen Verbinden Recyclen Energieeffizienz Modernisierung von Wärmebehandlungsanlagen II. Bauelemente, Ausrüstungen sowie Betriebs- und Hilfsstoffe Abschreckeinrichtungen Abschreckmedien Düsen für Gasabschrecken Härtereibäder Armaturen Gas Luft Ventile für Erdgasbetankungsanlagen Wasser Chargenträger (CFC) Förder- und Antriebstechnik Chargiermaschinen Lagerungen Gasrohrleitungen/Rohr-Durchführungen Gas-Infrarot-Strahler Gieß- und Schmelzzubehör Industriebrenner Drallbrenner Fackeln Flachflammenbrenner Gasbrenner Gasölbrenner Kanalbrenner Lunten- und Anwärmsysteme Mehrstoffbrenner Ölbrenner Parallelstrombrenner Porenbrenner Regeneratorbrenner Rekuperatorbrenner Ringbrenner Sauerstoffbrenner Sonderbrenner Staubbrenner Strahlrohrbrenner Brenner-Zubehör Armaturen Brennstoffversorgungsanlagen Feuerungsautomaten Flammenwächter Heißgaserzeuger, Brennkammer Leittechnik Regeneratoren Rekuperatoren Strahlheizrohre Überwachung Verbrennungsluftversorgung Wärmerückgnnung Wärmetauscher Brenner-Anwendungen Industriebrenner für Industrieöfen - direkt beheizt Industriebrenner für Industrieöfen - indirekt beheizt Kesselfeuerung Thermische Nachverbrennung Härtereizubehör Heizelemente 15

16 Prozesswärme MARKT Heizsysteme Direkt beheizte Lüftungssysteme Gasstrahlungsheizungen Kraft-Wärme-Kopplung Induktoren Induktorenbau Verfahrensentwicklung Ofenbaustoffe (nicht Feuerfeststoffe) Graphitisch Keramisch Metallisch Pumpen, Gebläse und Ventilatoren Gase Biogas Deponie- und Grubengas Erdgas Flüssiggas Gasgeneratoren Gasmischeinrichtungen Hochofengas/Gichtgas Kokereigas Schutz-, Reaktions- und Prozessgase Exo-/Endogaserzeuger Gasgeneratoren Gasmischeinrichtungen Schutz-, Reaktions- und Prozessgase Schmiedezubehör Stromversorgung DC-, MF- und HF-Generatoren Generatoren Leistungs-/Thyristorsteller MF- und HF-Generatoren Relais Transformatoren Umrichter Mess-, Steuer- und Regeltechnik Druckmessung Feuchtemessung Gasanalysatoren Gasdruckmessung und Gasregelung Gas-Sicherheits- und Regelgeräte Relais und Schaltungen Temperaturmessung Temperaturregeltechnik Prozessautomatisierung Leittechnik Messtechnik Prozessführungsanlagen Prozessoptimierung Prozesssimulation und Software Sensoren Umwälzeinrichtungen für Ofenatmosphären 16

17 Prozesswärme MARKT Reinigungs- und Trocknungsanlagen Umwälzeinrichtungen für Ofenatmosphären Wärmedämmung und Feuerfestbau Dichtungen Feuerfeste Steine Feuerfeste Massen Hochtemperaturwolle Isolierungen Zubehörteile für Industrieöfen III. Beratung, Planung, Dienstleistungen, Engineering Beratung für sämtliche Anwendungen der Induktionserwärmung IV. Fachverbände, Hochschulen, Institute, Organisationen V. Messegesellschaften, Aus- und Weiterbildung Subheadings (black type) within a main heading (coloured type) will be included free-of-charge as additional information under your entry. Hasn t found your headings? Please contact Ute Perkovic for more information. Your contact to 's Prozesswärme MARKT: Ute Perkovic Tel u.perkovic@vulkan-verlag.de and under 17

18 Technical Data Data output: 7 mm printable PDF/X-3 3 mm at all outer edges for bleed advertisement without crop marks in order to avoid bleed within the text we recommend at least 7 mm distance between logo/text and outer edge on you can find InDesign joboptions Data transfer: anzeigen@di-verlag.de or ftp://ftp.di-verlag.de User: ftptransfer_anzeigen Passwort: 1c6fU75G Create a folder with information of magazine-title and issue. File-Name as follows: Name of costumer_magazine_issue_format.pdf e.g. Name of customer_hp3_210x297.pdf (Please use abbreviations when naming magazine and issue. If possible, do not use more than 16 characters.) 3 mm Attention: Please provide proofs (according to ISO with Ugra/ FOGRA Media Wedge). Otherwise we cannot guarantee correct colour rendering. Editing layout: We also provide the data in the following file formats. In case this should cause extra costs we will contact you. InDesign CS3 Photoshop CS3 Illustrator CS3 MS Word 2010 Please send the proof to: Vulkan-Verlag GmbH Frau Melanie Zöller Friedrich-Ebert-Straße Essen, Germany 18

19 Circulation analysis/distribution Circulation control: IVW-audited Circulation analysis: 2 nd. quarter 2016 Print run: 2,500 Actually distributed circulation: 2,211 Commercial sales: 152 Complimentary copies: 22 Occasional recipients 2,059 Fair & exhibition copies Archive/author's copies: 150 Geographical distribution analysis Share of actually distributed circulationc Economic region in % Copies Germany and Western Europe Others , Totals 100 2,211 Industry/Sector/Distribution channels Recipient groups Share of actually distributed circulation in % copies Operators of thermoprocessing plants and systems ,044 Hardening shops and forges Foundries Manufacturers of industrial furnaces and industrial heat-treatment systems Consulting and Service Trade associations Others Totals: ,211 19

20 international brings knowledge, markets and users together! The new portal offers lots of new potentials: Thoroughly orientated research by content and B2B knowledge Latest daily news from the thermoprocessing technology industry Fairs and other events relevant for the industry On-line market place featuring suppliers and their products/services Community, spotlighting the top minds in the industry Latest products and processes Extensive book and article shop plus much, much more! The one and only B2B-portal for thermoprocessing professionals All pages and functions can also be read and used without difficulty an mobile devices, e.g. your Smartphone or Tablet - try it soon! 20

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26 JOBS international Vacancies: BASIC: Your job ad on inc. your logo BASIC entry CLASSIC + once-only placement in the Prozesswärme NEWS Newsletter CLASSIC entry PREMIUM + once-only placement in the journal elektrowärme international 8 weeks: 500 * 8 weeks: 750 * 8 weeks: 1, * * Value Added Tax (VAT) must be added. Payment against invoice in all cases Place your job ad here to fill your skilled employee needs systematically! 26

27 GASWÄRME ELEKTROWÄRME INDUSTRIEOFENBAU WÄRMEBEHANDLUNG WERKSTOFFE ENERGIEEFFIZIENZ MANAGEMENT "Prozesswärme" is the newsletter for the industrial thermoprocessing technology sector. Issued by Vulkan-Verlag, publishers of such leading technical journals as " - elektrowärme international" and "gwi - gaswärme international", "Prozesswärme" reports every month on current events throughout the thermoprocessing technology industry to a readership that includes more than 25,000 key decision-makers. Newsletter 2017 Kontakt: Ute Perkovic Telefon: , u.perkovic@vulkan-verlag.de 27

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31 Technical books 2017 TECHNICAL BOOKS: Titel: Heat and Mass Transfer for High Temperature Processes 1 st. Edition Ed.: Eckehard Specht Due: April 2017 Titel: Praxishandbuch Thermoprozesstechnik, Band I 3. Auflage Ed.: Herbert Pfeifer, Bernhard Nacke, Franz Beneke Titel: Handbuch HärtereiPraxis 1 st. Edition Ed.: Olaf Irretier Due: September 2017 Prozesswärme Stay informed and follow us on Twitter Tweet der Fachzeitschriften gwi gaswärme international und elektrowärme international (Industrieofenbau, Wärmebehandlung, Energieeffizienz, Management, etc.) Essen 31

32 Global presence with heat processing! 32