Ring die wood sawdust straw pellet machine is driven by the reversal of material into the restricted area inside the ring die, which has 2 ~ 3 roller, a roller form a limit), because the ring material into a mold, mold rotation roller, between the two rotating parts to violent kneading, feed and be part of die hole, shape of particles in crowded, particles after extrusion die and cylindrical, It is eventually cut by a fixed cutter into pellet fuel. In the production process of vertical ring die wood pellet machine, the position of the powder in the restricted area is not the same, and the compression force of the compression roller is not the same. It can be divided into 4 areas, namely feeding area, pressing area, rubbing area and forming area.
1, ring die biomass pellet machine feeding area: material is not subject to mechanical force, it is in a natural lax condition, but it is affected by the ring mold ring to produce centrifugal force, so that the powder is close to the ring mold inner ring.
2, ring die pellet machine compaction zone: with the rotation of the die roller, the material into the compaction zone, in this area, by the kneading effect of the die roller, the relative movement between the powder particles, the pore gradually reduced. With the acceleration of the material moving forward, the extrusion pressure is gradually increased, the pores are smaller, but the powder is basically not deformed.
3, ring die good selling wood pellet machinery kneading area: in the kneading area, the gap between the roller becomes smaller, the kneading force increases sharply, the powder further close and inlaid, the contact surface between the powder increases and the joint enhancement, the powder deformation, and a good connection, together to squeeze the compressed powder to the die hole. The pellet feed is formed by pressing through a length of wood alfalfa lucerne grass straw hay pellet mill die hole. The material in this section will undergo elastic and plastic combined deformation, and the material density after pressing out reaches about 1.1-1.3g/cm3.
4, vertical ring mold biomass straw wood pellet mill forming area: in the die hole has been filled with compaction formed fuel column, in the die hole inside and constantly under the new extrusion powder, so that the fuel column to the lateral passage, discharge die hole, then the kneading force will overcome the total friction force in the die hole material column, forming particles will be extruded.
RICHI forestry and agricultural residues pellet plant projects:
Customized 9-10T/H New Technology Biomass Wood Pellet Mill Plant Project
50T/D Biomass Pellet Plant For Wood Straw Bamboo Pellets Fuel Production
11-12T/H Biomass Agri Green Tree Wood Pelleting Plant For Crop Straw Stalks Wood Trunk Branch Roots
Large 13-14T/H High Efficiency Industrial Wood Pellet Plant For Making Hardwood Sawdust Pellets