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. As a manufacturer of medium-speed vertical mills, Guilin Hongcheng will introduce you to medium-speed vertical mills for coal grinding today.

The HLM series medium-speed vertical mill produced by Guilin Hongcheng has been used in the cement production line to produce coal powder in the early years. With the continuous advancement of technology and the needs of the market, HLM medium-speed vertical mills have gradually entered the industries of metallurgy, thermal power, and chemical industry. The specifications and models of the mill are constantly expanding. In order to meet the market demand, we have also developed a high-fine coal powder vertical mill, which can meet the needs of low-quality coal or anthracite with a grinding fineness of 0.08mm and sieve residue ≤ 1% in the cement industry. From the output of 3t/h to the output of 90t/h, it can meet the needs of various production lines.

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 HLM medium-speed vertical mill adopts an integral base, which can improve installation accuracy and reduce vibration.

HLM medium speed vertical mill is widely used in grinding bituminous coal, lignite, anthracite and other coal types. Customers are all over China and exported to foreign countries. The sales engineers of Guilin Hongcheng can dig deep into the response of operating parameters to characteristic parameters from the characterization of crushing rate, crushing energy, and grinding power, and provide customers with more accurate medium-speed vertical mill solutions. If you have relevant needs, please leave us a message to learn more about HLM medium-speed vertical mill equipment.