If the feeding speed is too fast, the load will increase and cause blockage. When feeding, you should always pay attention to the large deflection angle of the ammeter pointer. If the current exceeds the rated current, it means that the motor is overloaded. Overloading for a long time will burn the motor. In this case, the feeding door should be reduced or closed immediately, and the feeding method can also be changed to control the feeding amount by increasing the feeder. There are two types of feeders, manual and automatic, and the user should choose the appropriate feeder according to the actual situation. Because the speed of the crusher is high, the load is large, and the load fluctuates greatly. Therefore, the current of the ultrafine pulverizer is generally controlled at about 85% of the rated current.

Unsmooth discharge pipeline or blocked feeding too fast will block the tuyere of the pulverizer; improper matching with the conveying equipment will cause the discharge pipeline to weaken or block after no wind. After the fault is found, the conveying equipment should be cleaned first, the unmatched conveying equipment should be replaced, and the feeding amount should be adjusted to make the equipment operate normally.

Hammer breakage, aging, sieve hole closure, crushing, and high moisture content of the crushed material will cause the crusher to block. Broken and severely aged hammers should be replaced regularly, keep the crusher in good working condition, and check the screen regularly, the moisture content of the crushed material should be lower than 14%, which can not only improve production efficiency, but also prevent the crusher from clogging , Improve the reliability of the crusher work.