LM vertical roller mill has poor ventilation. Under normal operation, due to repeated impact and friction of media in the cylinder, the temperature in the mill continues to rise, resulting in water vapor generated by water containing materials.

If LM vertical roller mill has poor ventilation effect and the water vapor cannot be discharged in time, the water vapor will adhere to the lining plate and steel ball of LM vertical roller mill, Cause paste ball or paste grinding. Therefore, it is necessary to control the ventilation volume of LM vertical roller mill.

The passing effect in LM vertical roller mill is good, which can not only bring out qualified fine materials in time, but also effectively reduce over crushing and reduce the temperature of LM vertical roller mill.

The feeding of LM vertical roller mill is unreasonable. During the operation of LM vertical roller mill, uniform feeding is a necessary condition to ensure the normal operation of LM vertical roller mill.