1. Large materials are crushed by jaw crusher into required size for mainframe, then the crushed materials are elevated to the hopper by bucket elevator，then to the grinding chamber for grinding by vibrating feeder evenly and continuously.

2. The powder goes upwards with the airflow, after separating by the classifier, those which can meet the fineness requirement enters into the collector through pipes for separating and collecting, and discharged from the discharged valve as finished products.

3. The closed airflow circulation system with negative pressure ensures the environmental health of production line site.

LIMING