Raymond mill is divided into three series grinding machine more than a dozen models, including high pressure micro grinding machine, high pressure roller grinding mill, ordinary Ramond mill. The whole structure of Raymond mill is composed of main engine, analyzer, pipeline device, blower, cyclone powder collector, jaw crusher, bucket elevator, electromagnetic vibration feeder, electric control motor and so on. The main machine of Raymond mill is composed of frame, air inlet volute, shovel blade, grinding roller, grinding ring, housing and motor. During the operation of the Ramond mill, the grinding roller rolls tightly on the grinding ring under the action of centrifugal force, and the material is sent between the grinding roller and the grinding ring by the spatula. The material is broken into powder under the action of grinding pressure, and then the grinding material is blown up under the action of the fan and passes through the analyzer. The material that meets the finness requirement passes through the analyzer, and the material that fails to meet the requirement goes back to the grinding chamber for further grinding. The material is separated and collected by the cyclone powder collector