What is Hammer Mill

Hammer mill is a machine that uses high-speed rotating hammers to crush the feed. It has the advantages of wide versatility, weak temperature sensitivity to feed, good crushing quality, easy maintenance, and high productivity.

1. Generally, the water content of the feed should not exceed 15% when it is crushed. The moisture content of the feed increases, the structure crispness decreases, the feed is not easily crushed, and the productivity and the electricity production must be reduced. Tests have shown that when corn moisture content increases from 14.3% to 21%, its productivity is reduced by 29% and its power consumption is increased by 12.5%. When the water content of barley is increased from 13.8% to 20%, its productivity is reduced by 30% and its power consumption is increased by 12.5. %. Therefore, it is generally required that the moisture content of the feed at the time of crushing does not exceed 15%. 

2. The impact of the hammer speed is very large. In the given range, the low value is taken when the stem feed is crushed, and the high hammer speed when crushing the grain feed has a great influence on the productivity and power consumption of the grinder. Tests have shown that when the hammer speed is too low, the strike capability is reduced, and the suction power of the powder is also small, so the productivity is low and the power consumption is increased. When the speed is high, the crushing capacity and the powder discharge capacity are increased, so that the productivity is improved. 

3, the hammer screen gap can not be too large or too small Hammer screen gap is the gap between the end of the hammer and the screen, this gap has a greater impact on the performance of the mill. When the hammer screen gap is large, the feed particles close to the screen surface in the feed are unlikely to be in contact with the screen, and there is less chance of being hit. At the same time, the frictional effect of the screen on them is also reduced due to low speed, so the power output is reduced.

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.

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.