Vertical Roller Mill

The coarse material is fed to the center of a round table rotated by an electric motor with gearbox. The material spreads down the slope of the central pile and further by centrifugal force. Conical grinding runners are pressed on the rotating material bed by means of hydraulic or pneumatic and occasionally also by spring force. are used for grinding of cement, lime, glass, as well as a number of chemical and metallurgical materials. With its data base and test equipment PSP forecasts operating results of many more materials of other industries where coarse, fine or very fine grinding is required. The ground material passes a retainer ring at the periphery of the table, where it is picked up by a swirled air stream drawn from the lower part of the mill and lifted completely to the inlet of an internal separator. The coarse fraction is returned to the center of the table.