The wood chipper is the "front-end core equipment" in the production chain of biomass pellet fuel. Its function is to process raw materials such as branches, tree trunks, wood scraps, and forestry waste into uniform wood chips, providing standardized raw materials for the subsequent pellet-making process.

I. Wood Chipper: The "Pre-Treatment Hub" of Biomass Pellet Fuel

The production process of biomass pellet fuel is as follows: raw material collection → pre-treatment (chipping / crushing) → drying → fine grinding → pellet making → cooling → packaging. Among them, "chipping" is the core pre-treatment step for large pieces of wood raw materials. The function of the wood chipper is:

2.Solving the problem of "disordered raw material form":

Raw wood materials (such as branches with diameters of 5-30 cm, unevenly sized tree trunks, large pieces of wood scraps from furniture factories) have irregular shapes and large size differences. If they directly enter the crusher or pelletizer, it will cause equipment blockage and a significant increase in energy consumption (for example, if untreated tree trunks are directly crushed, the motor load will increase by 30%-50%). The wood chipper can process these raw materials into uniform wood chips with a thickness of 3-8 mm and a length of 20-50 mm, making the subsequent drying and grinding processes more efficient.

3.Improving "raw material utilization":

If the branches from forestry pruning and the waste wood from wood processing are not processed, they are often burned or discarded. However, the wood chipper can "turn waste into treasure" - even curved and with bark wood can be processed into qualified wood chips by the wood chipper, with a raw material utilization rate of over 95% (much higher than 60%-70% of manual crushing).

In the large-scale production of biomass pellet fuel, the wood chipper is the key link connecting "raw material recovery" and "efficient pellet making", directly affecting the quality, production efficiency, and cost control of the pellet fuel.