Is the vertical mill a medium speed mill?

Is the vertical mill a medium speed mill? Yes. The medium-speed coal mill is also called a vertical coal mill, and its characteristic is that the grinding part is composed of two groups of relatively moving grinding bodies.

The grinding device of the medium-speed vertical mill adopts the form of arc liner and tire-shaped roller sleeve. Using high damping grinding disc. When the material moves to the edge, the gravity offsets part of the centrifugal force, that is, the outward movement of the material is damped, which reduces the outward movement speed of the material, and the material layer on the grinding table can be relatively stable. The feed inlet is arranged on the top side of the mill, which can not only effectively prevent the blockage caused by the sticking of wet raw coal, but also avoid the need to use the hollow shaft of the separator rotor with limited feed area, high cost and difficult maintenance for the central feed. In the case of coal quality: bituminous coal, anthracite, lignite, and a mixture of two or more coals. The moisture content of coal quality varies greatly: the general moisture content is 6~10%, but some coal factories use higher moisture content, and some even reach more than 30%. The degree of sieve is 8~10% at 0.08mm. We can configure different numbers of grinding rollers according to different coal types and different coal fineness, which is suitable for various complex changes in coal quality. The roller cover of the medium-speed vertical mill adopts a tire-shaped design and can be turned over for use, which improves the utilization rate of the roller cover and prolongs its service life. The roller cover and the disc liner are made of composite ceramic metal material. There is a roller turning device for the maintenance of the grinding roller, which can quickly replace the roller sleeve and turn over the roller sleeve. With the help of the hydraulic system, the grinding rollers can be turned out of the grinding chamber at the same time or separately, which is more convenient for maintenance. The medium-speed vertical mill adopts an integral base, which can improve installation accuracy and reduce vibration.