Factors affecting the quality of biomass pellet fuel?

How can high-quality biomass pellets be made? Some important factors in the pelletizing process have been ignored by many people.
Raw material types
The type of raw material not only affects the molding quality, such as the density, strength and calorific value of the finished pellets, but also affects the output and power consumption of the pelletizer.
The particle size of the raw material will also affect the efficiency of the pelletizer and the quality of the molded product. If the raw material particle size is large, the pellet machine will not work effectively, the energy consumption is large, and the output is small. But the particle size cannot be too small, otherwise it will increase the energy consumption of the crushing process.

Biomass pellet fuel has strict requirements on the moisture content of the raw material. It is difficult to form if the moisture content of the raw material is too high or too low. The best moisture content of the raw material is about 15%. Raw materials with high moisture content can be conveyed to the dryer by a conveyor for drying, and then the next step of production can be carried out after reaching the standard.
Molding temperature is an important factor affecting the molding of biomass pellets. Too high temperature will cause carbonization of the material and particle surface and shorten the service life of the roller bearing, so the heating temperature of the pelletizing should be adjusted to a reasonable range.
The best solution for the die compression ratio of the biomass pellet machine is to select the critical point of the processed raw material. Selecting different die compression ratios according to different raw materials is an important means to control the quality of biomass pellets.