1. improper formulation of raw materials, change the formulation of raw materials;
2. processing temperature is too high or too low, reassemble the parts in the barrel;
3. the material into the unbalanced, adjust to uniform feed;
4. product moisture content is too high or too low, reduce or increase the amount of water or steam;
5. blade wear, change the blade;
6. crushing particle size is too large, replace the pulverizer sieve, improve the crushing fineness.