Application Of Wear-resistant Ceramics in Cement Industry

With the development of each city and the heating up of infrastructure, the cement industry has also begun technological innovation. On the one hand, in order to increase productivity and improve the working environment, on the other hand, the problem of equipment wear has become more and more urgent to solve.

Equipment wear and tear has seriously affected the normal production of the cement industry and has led to an increase in production costs and maintenance costs. The application of wear-resistant ceramics in the cement industry greatly extends the service life of wear-resistant parts, which is of great significance in improving equipment production efficiency, reducing production costs, and saving resources.

According to the mechanism and form of wear, wear can be divided into abrasive wear, erosive wear, and corrosive wear. Different wear-resistant ceramic processes are used according to the wear of the equipment.

The base material of equipment in the cement industry is composed of steel, and steel abrasion is the external manifestation of equipment abrasion. As the wear problem generally only occurs on the surface and part of the part, the use of surface protection measures to control and delay the damage of the surface has become an effective method to solve the wear problem. In the course of decades of development, the research and innovation of wear-resistant materials have never stopped. Cast stone, cast steel, alloy steel, thermal spraying, wear-resistant coating, wear-resistant mortar and other materials. Among them, alumina ceramics has become one of the most widely used wear-resistant materials due to its high wear resistance, high hardness, oxidation resistance, corrosion resistance and extremely high resistance to high and low temperature strength. In the coal and ash of cement plants, the hardness of almost all hard mineral particles is higher than that of ordinary carbon steel, but generally does not exceed the hardness of wear-resistant ceramics, which is second only to diamond in hardness.

According to the principle of equipment wear in cement plants, the equipment is divided into pneumatic conveying equipment and material conveying equipment. The anti-wear of pneumatic conveying equipment is mainly to increase the hardness of the surface material, and the anti-wear of the material conveying system is mainly to increase the toughness of the anti-wear material. , Supplemented by hardness.

Grasp the wear of the equipment and the respective characteristics of commonly used wear-resistant materials, and then select suitable wear-resistant materials and anti-wear methods according to the wear of different parts, in order to effectively improve the wear resistance of the equipment, thereby increasing the overall life of the equipment.