Raymond mill is also called Raymond roller mill, Raymond pulverizer and Raymond grinder. This powder grinding mill is mainly used in powder making plant or powder grinder line.Working Principle of Raymond Roller MillMaterials are firstly crushed by jaw crusher, then transferred to grinding area by electromagnetic feeder through the elevator and lifted by the shovel to the sand belt formed by grinding roll and grinding ring. High-pressure springs are installed in the grinding device, helping improve rolling ability between grinding roll and ring by 1.2 times, reducing the swing frequency of grinding device, increasing stability and working efficiency of the mill at the same time. The grinded particles are brought up by the air current of the blower into the classifier for classification. The particles with required fineness are brought up by the air current through the pipe into a cyclone collector for separation and discharge while the unqualified returns to the main machine for a new grinding together with the air flow back to the blower. During the course of grinding, certain air flow circulates inside the machine through the pipe while the moisture of materials envaporates to the air return pipe and is purified by the cloth collector or pulse collector and finally discharged from the outlet.Major factors affecting the capacity of a Raymond mill include desired fineness, grindability and initial moisture. The capacity of the mill decreases when product fineness increases. The harder a material is to grind, the lower the capacity of the mill. High initial moisture may also decrease mill capacity because of limitations on the drying capacity of the mill.The raymond roller mill, when equipped with a variable speed mill drive, can be used inapplications requiring adjustable capacity. This allows the user to match product rate with downstream process requirements, thereby reducing the operating and maintenance problems associated with frequent starts.Welcome to visit Fote Machinery: [email protected] mill: http://www.fte-china.com/pro/mineral_mill.html