2, the material is lightly thrown and the toughness is large: the fiber toughness in the material is very large, so that the material is not easy to break after being hammered and connected into a group blocked in the crushing chamber, and the blocking phenomenon occurs.

3, do not understand the main parameters of the half-wet material crusher: before use, do not first clear the parameters of the half-wet material crusher, especially the requirements for the nature of the material. The material does not meet the production process requirements of the half-wet material crusher, and after entering the crushing chamber, the ideal crushing effect is not achieved, which reduces the production efficiency and causes the phenomenon of blocking.

4, the operator is not trained: the operator of the half-wet material mill has not undergone training, the relevant knowledge of organic fertilizer equipment and the precautions for operation are too little, in order to speed up the work progress, increase the amount of feed, beyond the normal production capacity of the half-wet material mill, resulting in the phenomenon of blocking.

5, improper adjustment of the discharge: the occurrence of the blocking phenomenon may also be because the discharge pressure is too large, the air inlet of the lower part of the crushing chamber is not opened, the crushed material can not be discharged in time, and a large number of accumulated in the crushing chamber, resulting in the blocking phenomenon.