Laboratory Scale Spray Dryer SD-15 Operation Manual

Transcription

1 Laboratory Scale Spray Dryer SD-15 Operation Manual PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION Hagavish st. Israel Tel: , Fax: mrc@mrclab.com MRC.4.17

2 I. Technology Parameter 1.Air inlet temperature range 30ºC to 280ºC 2.Air outlet temperature range 30ºC to 140ºC 3.Evaporation rate of water at inlet temperature of 280ºC using Standard: Approximately 1500 ml/hour 4.Max. Sample feed: 1500mL/H 5.Power:3KW AC220V /50Hz Warning: if not 220V, the dryer must connect the transformer that it can transfer 110V to 220V 6.Air-Blower:0.2KW /5.6m 3 /min/1020pa 7.Air Compressor:0.2KW/4.2 m 3 /h 8.Compressor Air Pressure:2~3Bar 9.Dimension:780 x 560 x 1300 ( mm ) L x W x H 10.standard with 0.7 mm jet and other sizes are available as accessories 11.Weigh:110KG 12.Environment Temp.:10~40 Warning: This lab spray dryer can only be used for aqueous solution, Organic solvent forbidden! II. Packing List Description Qty Main Lab Spray Dryer 1 Main-Chamber 1 Cyclone 1 Sample Collection Bottle 1 Waste Collection Tube 1 Svl Screw Connectors 1 Clip Hoop(LY12 black) 3 Jet Assembly With 0.5mm Jet 1 Nylon Tube 6mm 2m 1

3 III. Preparation K G N F E D Installation and Operation F1 F2 F3 F4 SYS M J A H P Q L C B 1) The main chamber(a ) fits into the U shaped clamp (K) on the right side of the unit, and lightly tighten the nut (M) ( chamber can be flexible at U shaped clamp (K) as standard) 2) The cyclone (F) fits directly into the exhaust stack (G) to the left of the control panel & the main chamber(o) before the nut(n), sealing ring& stainless steel shim fit into the cyclone, adjust the position of the main chamber & cyclone so as they can be put in order completely, and lightly tighten the nut(p). 3) Join sample collection bottle and cyclone (F) with Clip hoop. 4) Join the waste collection tube and the main chamber with Clip hoop. 2

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5 IV. SYSTEM CONTROL fig(1)interface After switch on, touch screen shows interface, click F3 (or click any place on touch screen) the equipment into control system Fig(2) MANUAL: 1 PUMP Control the pump,press the start under the PUMP,the pump is running. 2 AIR-BLOWER(FAN) Control the fan, press the start under the AIR-BLOWER, the 4

6 air-blower is running. 3 DE-BLOCK PISTON Control the start under the DE-BLOCK PISTON, the de-block piston is running. The speed of the piston can be changed 4 AIR COMPRESSOR Control the start under the AIR COMPRESSOR,the air compressor is running 5 HEATER Control the start under the HEATING,the heater is running AUTO MENU:Set up the parameter required,then press the AUTO MENU to come back,and press the stopping, the equipment begin to work, after dealing with the material, change the material to water to clean the nylon tube, etc. Fig(3) 5

7 Fig(4) Fig(5) PARAMETER SET: 1) You can only change values on the screen displayed: 2) Values can be changed on the following screens: 1.1 set temperature. (0-280) 1.2 set air-blower(fan) (48-56) 1.3 set pump (45-60) 1.4 set de-block piston ( 4-5) 6

8 Notes: inlet temp. must be lower than 135 degree before feeding the material. AIR-BLOWER SET Sets up air-blower frequency, click numerical value frame, and figure keyboard come out, press CLR key, then import number you required, press ENTER key to finish (50 60 ordinarily). a DE-BLOCK PISTON SET Sets up DE-BLOCK piston frequency(numerical value express DE-BLOCK start up every second, and figure keyboard come out, press CLR key, then import number you need, press ENTER key to finish. b PUMP SET Set up pump rotating speed(20 50 ordinarily), and figure keyboard come out, press CLR key, then import number you need, press ENTER key to finish. c INLET TEMP SET Figure keyboard come out, press CLR key, then import number you need, press ENTER key to finish. After set up parameter, clicks AUTO CONTROL into interface, click stopping, equipment comes into procedure automate and runs, after spraying, click running, procedure stop (note: Inlet temperature than 90, AIR-BLOWER can not stop automatically). V. Problem probably Description Reasons probably How to settle fan not working Heater not working air compressor not working equipment has not electricity touch screen do not display Transducer damage Fan damage Fan don t start up Solid state relay(ssr) damaged Heater damaged Intermediate relay damage Air compressor do not startup Air compressor damaged Outside socket damaged Air switch 1 closed Intermediate relay damage Start button damaged 24V switching button damages connect with sales connect with sales Start up fan Replace SSR connect with sales Replace Intermediate relay Start up Air compressor connect with sales Check socket open air switch 1 Replace Intermediate relay Replace Start button Replace switching button 7

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10 Use the screen on FAN SETTINGS to set the air flow. Use the SET TEMP screen to set the temperature required. The actual inlet temp.and outlet temp. is displayed at all times on the set temp screen. Then set the pump to a proper rate. Allow a small amount of water to be pumped into the silicone tube to clean the tube and the jet and then transfer the tube to the sample. When the sample reaches the jet the Spray Drying Operation should commence and dried powder should be observed spiraling down the cyclone into the collection bottle. Once spray drying has commenced varying the parameters of temp., air flow and pump speed, may be tried to improve the process. VII. GENEERAL ADVICE AND USEFUL HINTS 1) Always start a trail with a low to medium inlet temperature ( ), maximum air-flow, and a slow pump rate. Observe the bottom of the main chamber for wetting and either reduce the pumping rate or increase the temperature if the product is not completely drying. The optimum pumping /temperature rates are achieved when not wet spotting of the product is observed (this assumes water as the solvent) 2) If the sample is a liquid with solids in suspension it may be necessary to keep it continually agitated with a magnetic or overhead stirrer. Heavy suspensions are best pumped from the sample container when it is positioned on the side shelf as this shelf, the pump and jet are all at a similar height. 3) Most spray drying process lose fines in the exhaust. The amount lost usually depends on air flow and particle weight. The air flow can be reduced using the screen controls. The particle size/weight can often be increased by using a larger jet size. 4) If the sprayed sample is light colored it may be more easily observed by placing a dark card behind the cyclone. 5) The ideal flow path through the cyclone should be a continuous spiral. If product accumulates on the cyclone wall try alterations to the air flow or the compressor jet pressure or the jet size. 6) Some sample may require pre-heating before spraying. 9