1. Failure phenomenon: fine-grained
Reason: more hammers
Solution: Lose a layer or two of hammerheads
2. Failure phenomenon: coarse granularity
Reason: loose belt or low speed
Solution: Tighten the belt and check if the voltage is 380V
3. Failure phenomenon: the broken body swings
Reason: Unbalanced centrifugal force of rotor
Solution: replace the hammer with a new one, or adjust the weight of the pusher