Several key issues to note when using hammer mill (2)

4. Under the premise of satisfying the requirements for livestock and poultry raising, the sieve diameter of the sieve with a larger mesh opening diameter should be selected so as to have a significant effect on the power output of the crusher, and also directly affect the crushing rate of the crushing feed (feed pellets). The average diameter). Feed fineness M=(0.25~0.33)d. The larger the mesh diameter, the higher the electricity yield, but the coarser the crushed material. In general, when grinding fine feed, the diameter of the mesh opening can be increased by 20% to 35% for every 1mm increase in diameter from d=2mm. Conversely, the smaller the diameter of the mesh, the finer the feed is, but the productivity and power production of the machine are also significantly reduced. Therefore, under the premise of satisfying the requirements for livestock and poultry raising, sieves with a larger hole diameter should be used. 5. Feeding amount must match with the air flow through the screen. The type of the crusher is different. The amount of feed is different. It has a direct impact on the crushing efficiency. When the amount of feed is greater than a certain amount of air flow through the screen, the material will be accumulated on the screen surface, causing different degrees of blockage of the screen hole, the circulation layer of feed in the pulverization is thickened, so that the resistance on the rotor increases Large, resulting in reduced crushing efficiency. Therefore, when the amount of feed only meets the design requirements of the crusher, the power consumption is the minimum, and the productivity is the highest. The motor is not overloaded, and the user will be satisfied with the crushing product. 6, pay attention to the balance of the machine grinder is a high-speed rotating machine, both at the factory after the dynamic and static balance test. After a period of use, when the edge of the hammer blade wears to 1/2 of the width of the hammer, the edge change or turn around must be performed in-situ. Axially fed grinders can also be used with adjustable heads when the blade is worn. When it is necessary to replace the new hammer, it is necessary to re-allocate the group and ensure that the quality of each group is not more than 5g, so as not to affect the balance of the machine and cause vibration and noise. 7. Pay attention to the tightness of the belt. The looseness of the belt of the crusher can be adjusted by adjusting the front and rear positions of the movable motor on the frame. To avoid slippage of the belt, it can be loosened to increase the wrap angle.