How to control the particle size of raw materials for fuel pellet machine?

                  The particle size distribution of biomass fuel raw materials has a great impact on the molding standards. As the particle size distribution of corn straw and cattail raw materials increases, the relative density of the molded particles gradually decreases. When the particle size distribution of the raw materials exceeds 10 mm, the molding effect deviates. , or even not formed, but the particle size distribution of the raw material is too small, which will also affect the density of the particles. Therefore, when using corn straw, cattail stalks and other biomass fuels as raw materials to produce pellet fuel, the particle size distribution should be maintained at 1-5 nun More suitable.

                 When the same raw material is molded in ring dies with different compression ratios, the density of the pellet fuel gradually increases as the compression ratio increases, and within a certain compression ratio range, the density remains relatively stable. When the compression ratio reaches a certain level At this time, the raw material will be blocked due to excessive working pressure and cannot be formed. Because the particle size distribution of the chaff is large and the ash content is large, the chaff cannot produce particles. For the same raw material, in order to obtain very large particles According to the density, the ring die compression ratio should be designed to be larger.