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Effective assistant for ball mill lining with wear resistance and corrosion resistance

Alumina lining brick is also called alumina ceramic lining brick, ball mill lining brick, ball mill lining board, wear-resistant ceramic lining brick and so on. It has the characteristics of high hardness, high density, low abrasion, good regularity, corrosion resistance, etc. It is mainly used for the wear-resistant lining of ball mills, and is a good assistant for wear and corrosion resistance of ball mills.

Traditional ball mills are made of manganese steel. It was later discovered that the use of manganese steel did play a certain role, but there were some shortcomings. If the surface of high manganese steel cannot reach high hardness, the work body will wear out quickly. At the same time, the yield limit of high manganese steel is relatively low, and the workpiece is prone to plastic deformation during use, especially in the early stage of use. In addition, there is a hardness matching problem between the ball mill liner and the grinding media (such as grinding balls). At present, the hardness of low-chromium cast iron and high-chromium cast iron grinding balls used in many factories and mines is much higher than that of high-manganese steel plates. The above-mentioned shortcomings of high manganese steel under low impact load often lead to excess toughness of the workpiece but insufficient wear resistance, rapid wear failure, and serious deformation, resulting in short life of the work body.

The Rockwell hardness HRA of alumina lining brick is greater than 80. Its main raw material is alumina powder, which is then sintered at high temperature. The texture is similar to ceramics, so it is called alumina ceramics. Its production method makes it wear-resistant and Resistant to acid and alkali corrosion. The thickness of common alumina lining bricks is between 40-90mm. It is divided into rectangular bricks, trapezoidal bricks, and special-shaped bricks. They can be matched according to the diameter of the tube. The thickness is mainly based on the size of the ball mill and the material condition. To choose.

Alumina lining bricks are widely used in the chemical, ceramic, cement and mining industries. Common ones include quartz sand mill, kaolin, silica powder and so on. Choose the right product according to the different force products in different industries.

Recently, a customer ordered a ball mill to process kaolin. The size of the ball mill is 2.8-9 meters. He requested that the inner wall of the ball mill be protected with alumina lining bricks. He has not touched this before, so I want to ask about this ball mill. What size is used for the lining brick.

We can see that this ball mill is a big one, so of course the thicker the thickness, the longer it will take. The hardness of kaolin itself is lower than that of alumina lining bricks, so we recommend this to use H70-90 alumina Lining bricks. Then match oblique bricks and straight bricks according to the cylinder data.

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