LM Vertical Grinding Mill

Working Principle of LM Vertical Grinding Mill

The grinding plate rotates under the action of main motor and the reducer. Meanwhile, hot airflow enters the vertical grinding mill. After raw materials fall onto the center of grinding plate, they, under centrifugal force, move to the edge of grinding plate. While passing through the grinding area between roller and grinding plate, large materials are broken directly under the pressure of roller while fine materials form a layer where materials crush each other. Broken materials after grinding continue moving to the edge of grinding plate until they are blown away by the airflow at the air ring. For coarse materials which cannot be brought away would fall onto the grinding plate for another grinding. When passing the upper separator, materials in the airflow will be divided into two parts by the blades of rotor, that is, coarse particles and fine powders. Coarse particles would be sent back to have another grinding while qualified fine powders enter the powder collector with airflow as finished products. For sundries like iron block in materials, when they move to the fringe of grinding plate, because of their heavier weight, they would drop to the lower cavity of grinding mill and next be sent into the discharging port by scarper installed at the bottom of grinding plate and finally be discharged out of the grinding mill.