Gypsum powder mill plant

Raw gypsum rocks are crushed by jaw crusher to the required sizes, and carried by bucket elevator to the storage hopper, and are fed evenly and continuously by vibrating feeder into the main unit for grinding.

The grinding roller device in raymond mill chabmer rotates around not only the central shaft but also along the grinding ring,with the grinding roller rotating itself under the action of the friction. The grinding roller hanger has a shovel blade installed at the bottom of roller, the shovel blade and grinding roller throw up and feed the gypsum between the grinding rollers and ring, which will produce an outward centrifugal force ( an extrusion force ) to crush the materials.

The grinded gypsum powder are carried by the airflow from the blower to the classifier to be classified, the particles which meet the fineness(80-500mesh) enter cyclone collector through pipe, and are separated and collected there. They are discharged at the discharging valve to become finished gypsum powder; the airflow is sucked to the blower by return pipe on the top of cyclone collector.The whole raymond mill plant airflow system is a sealed circulation, and is circulated under positive and negative air pressure.