Wood preparation and blending technology for flakes, fibers, and strands

Wood preparation and blending technology for flakes, fibers, and strands

2 Front-end technology Wood preparation and blending technology for flakes, fibers, and strands: Siempelkamp from the start Complete plants for the wood-based panel industry from the wood yard to the packing of the finished boards are Siempelkamp s specialty. What would this performance chain be without the perfectly fitted front-end technology? From the milling/flaking technology to the blending system, we have the established process knowledge of many decades. We constantly add to this knowledge with our innovations: We have recently developed a number of new machines and have positioned of them successfully in the market to date. Next to Siempelkamp in Krefeld, Germany, the Hombak Maschinenund Anlagenbau GmbH as well as our Italian subsidiary CMC Texpan are responsible for our front-end equipment. All machines and plants are built according to Siempelkamp s proven quality standard and adjusted to the corresponding interfaces. Sicoplan in Belgium plans and engineers the machinery networking to create a meaningful and lasting solution. During this process the company is always focusing on keeping easy access in mind. 3-D planning at Sicoplan

3 Wood yard Not having interfaces from the start results in numerous advantages! From the wood yard to the milling/flaking technology, conveyor technology, screening technology, storage systems to the blending system, our machines generate first-class raw materials and conserve resources! Customer benefits: High performance, low production costs and long machine lives stand for Siempelkamp s first-class wood preparation knowledge and for our customers best possible end product! Complete planning of wood-processing lines for MDF, OSB and particleboard plants. Supply materials include: logs, chips or scrap wood. Customer benefits: Gapless performance from the start Siempelkamp s many years of experience in the field a coherent combination of technical and planning expertise. Wood yard

4 Milling/Flaking technology Rotor debarkers Rotor debarkers process logs of all applicable diameters and lengths! The principle: The bark is removed by means of friction or with appropriate tools. Technical features: Rotating method of operation, variable speed, robust design featuring a multiple partitioned housing. Customer benefits: Low production costs, high operating reliability, quick installation, simple operation, minimum wood breakage. Drum chippers with belt conveyor and discharge screw conveyor Drum chippers are designed for the continuous production of wood chips, for example, from logs, residual wood and wood wastes. They are equipped with a material infeed conveyor and a discharge screw conveyor for the material transport. Technical features: High operational availability due to specially toothed draw-in rollers with surface armoring safeguard. A large drum diameter and a screening surface equipped with additional cutter bars have as a result an always consistent chip quality. The counter knives are designed for multilateral use and can be reground. Customer benefits: Excellent chip quality due to optimized chipping geometry and improved material infeed, low maintenance and spare parts costs, low downtime costs, continuous and precise feed. Infeed With Logs Rotor debarker Infeed of the drum chipper Drum chipper Drum chipper in the workshop

5 Knife-ring flakers Knife-ring flakers are high-performance machines for the production of quality flakes for the particleboard industry. Technical features: An optimal cutting geometry and the very efficient design of knife-ring and rotating impeller result in flakes with a consistent quality. Customer benefits: Excellent flake quality, high wear protection, easy knife-ring replacement. Hammer mills Hammer mills generate high-quality particles from recycled wood material, such as sawmill waste, wooden packing containers, pellets, furniture, and fruit crates. They split chips along the fiber structure, producing a more even furnish. Technical Features: Wood chips can be processed into high quality particles even when the moisture content of the base material is higher than 100 %. They can also to be used to refine dry particles for the production of higher quality particleboard. A wide range of hammer mill options are available - customized hammer mills can be produced, based on customer requirements and specifications. Customer benefits: Constant quality, high efficiency and reliability, low maintenance costs, low energy consumption. Knife-ring flakers

6 Milling/Flaking technology Surface layer mills Surface layer mills produce homogenous surface layer material from different supply materials. The result is excellent surface material that features a low percentage of dust and coarse material a basic condition for the production of quality panels. Technical features: Flaking and screening in one process step, robust design for long and trouble-free continuous operation. Customer benefits: Economic production of surface material with excellent properties for blending and mat-forming. Stranders Stranders produce high-quality OSB strands from logs. Technical features: Easy knife replacements, optimized knife-ring, high reserve capacity, innovative strand discharge with improved breaking-up of the strands, hydraulic and electrical systems are Siempelkamp designs. Customer benefits: Excellent strand quality, assured quality due to Condition Monitoring (quality monitoring of stored material). Surface layer mill Strander Knife-ring for the strander

Conveyor installations Particle screening 7 Conveyor installations Oscillating screens Belt conveyors or discharge screw conveyors, we have the suitable system for each transport need during the entire front-end process! Also part of our program are chain conveyors which are used, according to the application, for horizontal, inclined or vertical transportation needs as well as belt conveyors for the continuous material flow in many different designs. Technical features: Robust, reliable and fail-safe designs. Customer benefits: We provide conveyor technology that is proven and tested and highly efficient due to its high degree of reliability! Oscillating screens are high-capacity machines which are used for wet and dried materials, chips and particles. They are manufactured according to new design and simulation technologies in order to withstand strong mechanical stress. They feature a sturdy beam structure, a balancing system, and support legs with special cross elastic elements. They are designed with a single or double deck frame structure and include a self cleaning device that operates by means of rubber balls. Technical features: Machine provided with sets of screening-extractable frames made of stainless steel, feeding and charging hoppers, extinguishing unit, over-pressure hatches (certified bursting panels). Customer benefits: High efficiency, wide range of screening surfaces, operator-friendly maintenance. Oscillating screen

8 Particle screening Roller separators High performance roller separators, which guarantee efficient separation of chips, sawdust, OSB Strands and wet particles. Special designs for the separation of OSB Strands are available. Technical features: Screening of material between patterned rollers. Roller separators are stationary, can also be installed on high steelworks and require no particular maintenance or periodic cleaning. Suitable lateral sealing ensures an excellent separation between the different fractions, as well as between rollers and transmission bearings outside the sifting deck. Customer benefits: Linear and constant separation efficiency, high reliability, easy setting of screening parameters, low maintenance. Gravimetric separators Gravimetric separators are used for the classification of particles according to their weight, size and thickness, as well as for the removal of pollutants. Their cylindrical body ensures a constant and homogeneous airflow on the whole fluidizing chamber area. Wet or dried particles are fed into the fluidizing chamber through a feeding airlock and a vertical duct placed in the middle of the chamber. Technical features: Coarse material is conveyed into the center of the perforated grid, discharged through an airlock and treated with an additional air flow. An additional flow of compressed air keeps the grid clean. Customer benefits: Easy adjustment, constant efficiency, low maintenance, better density profile of produced boards, lower resin and wood consumption, reduced rejected boards. The rollers in the separator Roller screen Gravimetric separator

9 Chip cleaners Chip cleaners are used for the removal of any contaminants whose bulk density is higher than that of the processed wood chips for example: stones, minerals, sand, metals, glass, rubber, plastics and high density wood chips. The removal of contaminants is fundamental to prevent damages, as well as to avoid early wear of the machines and conveyors installed within the production cycle. Technical features: The principle of operation is based on densimetric separation. A tank, supported on a sturdy structure by means of elastic spring elements, is kept moving by one or more large mechanical exciters. For a more effective separation of contaminants from wood chips, the separation effect is combined with a strong pulsating air flow to provide a further dry cleaning of the chips. Customer benefits: High and constant cleaning efficiency, very low quantity of rejected wood, minimal adjustment effort, low energy consumption. Magnetic separators Magnetic separators provide for the continuous and automatic separation of ferrous materials from flows of wooden material fed through them. They are used to sort geological materials according to their magnetic properties. We offer different separator types with different magnet materials, to meet any specific application requirements moreover we produce deferrizing units, neodymium cages and nonferrous metal separators. Technical features: Material is fed into a hopper at the top of the unit and falls onto a moving drum, rotating around a magnet. Non-magnetic material quickly falls off the drum, strongly magnetic material stays on longer, attracted to the magnet. Customer benefits: Effective separation of ferrous parts from wooden material flows, avoiding possible damages. Simple installation, low maintenance, high efficiency. Dry chip cleaner Magnetic separator

10 Storage systems Moving floors Moving floors are widely used in the wood-based panel industry to store loose materials such as chips, sawdust, bark and recycling wood. Feeding can be carried out by mechanical conveyor systems or directly by trucks. Technical features: The materials are moved to the discharging hopper through a set of sliding frames, moving alternatively back and forth, located on the bottom of the silo and controlled via hydraulic pistons. The hydraulic unit is equipped with several control and safety systems against overpressure and provided with a radar control for continuous monitoring of the material level. The installation is designed according to the specific requirements of each customer. Customer benefits: Very flexible system, easy to implement, able to guarantee a good dosing accuracy thanks to the discharging screw, driven by a frequency converter. Moving floor

11 Silo extraction Our production range also includes silos complete with extraction systems, available in two different versions to meet any specific requirements and needs: hydraulic extractors and rotating screws. Technical features: Hydraulic extractors: heavy frame fastened on the bottom of the silo, driven by hydraulic cylinders. Opening on the bottom of the silo for material discharge. Customer benefits: Hydraulic extractors: may be installed on existing silos. Very useful when process requires more than one discharging outlet. Wide range of extraction capacities, absolutely minimal maintenance. Rotating screws: Useful for every kind of material, strongly recommended for wet flakes, SL and CL particles because of a very good material mixing grade. Very low power demand, huge capacity range. Rotating screws: Storing unit is equipped with a rotating turret installed on the bottom and in the middle of the silo. One or two metering screws, fastened and driven by the same central turret, carry out the material extraction. Rotating screws Silo extraction

12 Storage systems Metering bins Metering bins serve as intermediate storage of strands, wafers, and similar materials both green and dry. They are especially well suited for OSB strands. Technical features: The material is uniformly fed into the bunker by means of a rake conveyor travelling alongside the bunker s upper side. Delivery is carried out by means of a frequency-controlled belt, dosage by means of spiked rollers positioned at the front-end. Customer benefits: Metering bins guarantee the safe discharge of the extremely long strands which tend to plug and their exact dosage. Metering bin

Blending system 13 Dosing bins High efficiency machine for the metering of SL and CL particles to the blenders. Different machine width according to the required extraction capacity. Technical features: Leveling rotary combs installed inside the bin case. Filling controlled by a belt scale and level switches. Dosing belt driven by a frequency converter and controlled by an encoder. Customer benefits: Very high dosing accuracy, easy to adjust and set-up, very low power demand, very low maintenance. Glue kitchens For an accurate preparation of the resin mixture. Dosing system uses Coriolis-type mass flow meters for resins, emulsions or melted wax, and magnetic flow meters for all the other components. Technical features: Unlike volume metering systems, mass flow meters allow continuous measurement of the throughput material in kilograms. For even better reliability in the system, the resin dosing system includes two separate dosing tanks which are equipped with pressure-operated level controls. Magnetic (volumetric) flow meters are used for other chemicals which might be required by the different recipes. Customer benefits: Highest accuracy and reliability. Glue kitchen... Dosing bin and glue blender...and dosing unit

14 Blending system Resin blenders Low speed new generation blenders with high retention and mixing time. Centrifugal force decreased in order to reduce the impact of the particles. SL machines are equipped with half-moon shaped tools for a better loading of the mixing area. CL machines are equipped with screw conveyor drum to reduce the particle impact and the fragmentation. Customer benefits: Very homogeneous resin distribution, reduction of particles fragmentation, reduction of mixing chamber wearing, reduced heating of particles due to less friction, reduced glue spots, reduced cooling water consumption, reduced maintenance costs. Technical features: New mixing tools for easy and faster orientation, homogeneous and soft mixing, better cooling exchange, less particles fragmentation and less glue spots. Cooling unit provided with chiller, storage tank for water, solenoid valve and accessories. Separate cooling circuits for shell and shaft. Automatic discharging gate to control the flow of the glued particles. Glue Blender for particleboard Glue blender in the workshop

Energy plants 15 Energy plants Panelboard production is energy intensive. Reducing energy costs can reduce fuel costs by utilizing the waste materials generated in the panel production process. The energy plant can be fuelled by waste materials ranging from bark and start-up fiber to sander dust, trimmings and rejected panels. Technical features: A mixture of wet and dry fuel in various forms is burned in the combustion chamber on a reciprocating step grate. The use of the step grate with a refractory lined chamber allows the combustion of very wet fuels (up to 150 % moisture content, dry basis). To increase the efficiency of the combustion system it is possible to inject sawdust, trimmings or waste fibers in the lower chamber above the grate. Sander dust and any additional natural gas or fuel oil can be burned in the upper part of the combustion chamber. Specially designed burners ensure that the dust is fully combusted under conditions that minimize CO and NOx formation. Part of the hot gases produced in the combustion chamber is passed through the thermal oil/steam heater. The steam is produced directly by hot flue gases. The gas flow through the heater is controlled automatically to meet the plant s steam and heating oil demand. The hot thermal oil is supplied from the oil heater to the continuous press and any other component. All generated flue gases, including the gas used in the steam/oil heater, are passed directly to the dryer. The high combustion efficiency ensures that the amount of unburned material collected from the system is kept to a minimum. Under these conditions the total system losses, including those from the stack, are kept at less than 5 %. Customer benefits: 20 years of experience, 50 reference lines ranging in size from 12 MW to 85 MW Complete solutions for the panelboard industry (MDF, PB, OSB) Custom-tailored environmental technology Low maintenance and cleaning needs ensure high availability Strong synergies to dryer suppliers (Büttner) to optimize interfaces Energy plant

Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG Siempelkamp (Wuxi) Machinery Manufacturing Co. Ltd., China ATR Industrie-Elektronik GmbH Siempelkamp Energy Systems GmbH Siempelkamp CZ s. r. o. Machines & Handling W. Strothmann GmbH Siempelkamp Logistics & Service GmbH Büttner Gesellschaft für Trocknungsund Umwelttechnik mbh CMC S.r.I. Engineering Sicoplan N.V. Hombak Maschinen- und Anlagenbau GmbH Sales companies/representatives Australia Siempelkamp Pty Ltd. Brazil Siempelkamp do Brasil Ltda. China Siempelkamp (Wuxi) Machinery Manufacturing Ltd.,Beijing France Siempelkamp France Sarl India Siempelkamp India Pvt. Ltd. Russia Siempelkamp Moscow Singapore Siempelkamp Pte Ltd. Spain Siempelkamp Barcelona Turkey Siempelkamp Istanbul USA Siempelkamp L.P. All rights reserved. No part/parts of this publication may be reproduced, transmitted, edited or published in any form or by any means, electronic or mechanical, without the written permission from Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG 05.11/3000E Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG Siempelkampstrasse 75 47803 Krefeld Germany Tel.: +49 (0) 21 51/92-30 Fax: +49 (0) 21 51/92-56 04 www.siempelkamp.com