How biomass pellets are made?

2019-11-27 10:07:00
E.P Machinery
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Summary :Biomass pellets are a new environmentally friendly energy, generally made from straw, rice husks, peanut husks, corn cobs, camellia husks, cottonseed husks, etc. When biomass pellets are burned, less harmful gas is emitted, and the ash after burning can be directly used as potash fertilizer. Wood pellets have a large market in Europe. Many families use wood pellets for heating.
Biomass pellets are a new environmentally friendly energy, generally made from straw, rice husks, peanut husks, corn cobs, camellia husks, cottonseed husks, etc. When biomass pellets are burned, less harmful gas is emitted, and the ash after burning can be directly used as potash fertilizer. Wood pellets have a large market in Europe. Many families use wood pellets for heating.
Biomass pellets
Biomass pellets

When making wood pellets, the manufacturer will source all their wood materials from recycled wood streams, utilizing the waste generated from timber production and wood product manufacturing. Then, the biomass materials are stored at their manufacturing facility, and sorted into each grade of pellet. Some manufacturers would source their wood dry for minimizing moisture throughout the manufacturing process. The biomass is then loaded into a grinder, to create wood fibre for the pellets, during which process, a magnet picks out any metal that got mixed into the wood for sake of preventing damage the pellet machine. The wood fibre then enters the pellet mill, and is extruded at high pressure through narrow holes in the thick, metal die. This compression creates heat which softens lignin naturally occurring in the wood. The lignin acts as a natural glue, to give the pellets their final shape. 

No additives are needed in the process. The freshly compressed pellets are very hot from the friction of the shaping process, and travel to a cooling tank. A fan pulls air through the cooling tower filled with pellets to extract the heat from the manufacturing process. The cooling tank also removes any dust residue on the pellets. The dust is recycled back into the raw material stream to be made into pellets in this primary removal stage. 
Vertical type pellet mill
Vertical type pellet mill

The wood pellets travel up another conveyor belt, and into two large storage bins. Pellets can then be loaded into a truck and delivered in bulk, or packaged into a specific pound bags and totes. The pellets that are packaged in the specific pound bags or tote bags are thoroughly screened to remove the fines and dust. This results in a very clean product for handling. An automatic bagger controls the weight of the pellets that are bagged, sealed, and placed on a skid. Pellets are then delivered straight to your door using tailgate, or pneumatic delivery trucks.

E.P Machinery is professional in biomass making machines. With 10 years of experience in this industry, pellet machines made by E.P Machinery have won great reputation from clients in home and overseas countries. If you have any questions about the feed materials into pellet machine, you can contact E.P Machinery at any time. E.P Machinery’s technicians and salesmen will answer your question.

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