Coal preparation equipment is severely worn and has a short service life, which has become a serious obstacle to the production and development of coal preparation plants. Therefore, according to the unique working conditions of coal preparation equipment, it is of great significance to reasonably research and develop new wear-resistant materials to extend the service life of coal preparation equipment.
Wear-resistant ceramic sheets are an important technical means to solve the reliability of various equipment in coal preparation plants. Among traditional wear-resistant materials, ceramic materials have become the most common and important type of material in human life due to their wide sources and superior material properties. They are characterized by high hardness, wear resistance, and corrosion resistance. Wear-resistant ceramic sheets with alumina as the main component have become the most widely used materials due to their simple process, low processing cost, and good wear resistance. At present, they have been widely used in metallurgy, mining, chemical industry and other fields.
At present, wear-resistant ceramic sheets are widely used in cyclones, chutes and pipelines of coal preparation plants, and are an important technical means to solve the reliability of various equipment in coal preparation plants. In terms of the characteristics of the material itself, alumina ceramics are brittle materials, and brittle materials have no chance of deforming under impact, impact, smashing and other behaviors. Research shows that when brittle materials are eroded by solid particles or solid-liquid two-phase flow, cracks often occur in defective areas on the surface of the material, followed by fragments peeling off or overall fracture.
The wear resistance of wear-resistant ceramic sheets mainly depends on three aspects, namely formula, raw material powder and sintering process. After a lot of research, Huazhan optimized the formula, raw material particle size and sintering process. Through various means to test the density, hardness and impact wear performance of the new product, it was found that the density and impact wear resistance of the new product have greatly improved. improvement.
