Biomass pellet production line has been popular in many areas. It is mainly composed of crushing part, drying part, pelletizing part, cooling part, sieving part, etc.
1. Crushing and drying parts of biomass pellet production line:
If your raw materials are sawdust or wood shavings that have a size of 8-12mm or smaller, they do not need to be crushed; if you have other raw materials like tree branches or abandoned wood plates, you should crush them first in order to increase productivity.
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| Crusher for biomass pellet production line | Dryer for biomass pellet production line |
For biomass pelletizing, the best moisture content of raw material is 10-16%. As a result, if the raw material has much higher moisture, we need to equip drying machine for your biomass pellet mill line. On the contrary, if the moisture is too low, you’d probably add water to the raw material and stir evenly till a proper moisture content.
2. Pelletizing part of biomass pellet production line:
For industrial pellets production, we usually choose ring die pelleting machine. Ring die pelleting machine is composed of a vertical ring die and an internal drum. The pressure is exerted to the ring die. The raw material in the conveying system is pushed into the pelletizing chamber by a fan. In the pelletizing chamber, the drum (insisted of roller and main shaft) is stationary, while the ring die rotates, which is similar to washing machine. The material goes through the ring die and is extruded by the drum.
The ring die pelleting machine will not appear unevenness of drum, and the equal distance of the inner and outer sides between the ring die will cause no wear. It is more suitable for large scale production than flat die pellet mill, since: 1. the loss value of drum and ring die is comparatively low; 2. It has higher energy efficiency. Since the sliding roller generates more friction, the flat die pellet mill needs more energy consumption.
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| Ring die pelleting machine | Pelletizing chamber |
GEMCO ring die pelleting machine adopts air circulation method to low the temperature from 200℃ to 80-100℃ and discharge extra vapor. This technology greatly reduces the temperature of the ring die to change the work environment of non-compressed part, extend the life of the ring die, pressing roller and bearings. Only the life of a single ring die is extended from the original 250-300 tons to 800-1000 tons. It also achieves continuous production to effectively reduce production costs.
3. There are other auxiliary parts that compose a complete biomass pellet production line, and we will discuss later.
In brief, for producing good quality biomass pellets, you need all necessary equipments for building a biomass pellet production line. And you needn’t to hesitate, since we will offer you the most suitable plan for you as soon as you contact us.
By Shirley Wang
