Vertical Roller Mill Gear Unit
vertical roller mill gear unit technology is based on the know-how and technical capacity accumulated for the past 20 years and the technical agreement with RENK and has been supplied to both domestic and international customers. Playing a core role in grinding fuel for thermal power plants and cement plants, the vertical roller mill gear unit has excellent durability against severe environments and is able to handle high loads. A temperature sensor is mounted on the vertical roller mill gear unit to monitor temperatures of the bearing and the oil. In addition, a combination of the planetary gear and the bevel gear enables to design the reducer with a gear ratio of 20:1~40:1.
Method of operation
Vertical Roller Mill has two pairs of grinding rollers, each pair of roller composed of two narrow rollers, mounted on the same axis and can rotate at different speeds. There are two circular disc slot, and roller to the tire shape, work pressure in the tank. Disc roller and the relative sliding velocity between small and roller can swing, even if the roller sleeve and the disc after the liner wear can guarantee a good abrasive, will not affect the grinding effect. Roller symmetrical structure, one side can be upside down after use and wear. Material grinding process: hydraulic pneumatic roller device through the pressure applied to the material on the crushing of materials, the materials have been moved to crush the edge of disc, from the disc around the nozzle from the exhaust air to improve these materials to Separator.Meal to separate returns after a concentrated mill, fine powder was collected in the precipitator unloading. In the gas flow is small, the meal can not be increased to enhance air flow, they would fall through the nozzle discharged outside the mill, bucket elevator to be transported to the feeder of vertical roller mill, and was re-grinding mill feed people. This cycle features of the way there: ring by adjusting the air valve, can change the product fineness can Shide mill bed load material uniformity and stability, improving the grinding efficiency; coarse particles in the external circulation, helps reduce Fan power consumption and overall system power.
Vertical Roller Mill is designed to feed material to the center of a table, where the material horizontally rolls and moves in the peripheral direction of the table with centrifugal force. The material is ground between the table and three rollers installed along the top face on the concave section in the table and conveyed further in the peripheral direction. Furthermore, the material is conveyed to the separator with the ascending air-stream for classifying there.