High-temperature-resistant abrasion-resistant protective material for easily-worn equipment in large industrial and mining enterprise

Abstract

The invention discloses a high-temperature-resistant abrasion-resistant protective material for easily-worn equipment in a large industrial and mining enterprise. The protective material comprises the following constituents in parts by weight: silicon carbide, alumina fine powder, ceramic fine powder, carbon fibers, chromic oxide, zirconium mullite, white fused alumina fine powder, perlite, glass fibers, calcium hydroxide, zinc oxide fine powder, zirconium oxychloride, an additive, an adhesive and a solvent. Though the synergistic effects of the constituents, the strength of the protective material is significantly enhanced in the heating process, and the thermal stability and erosion resistance of the protective material are improved; the protective material is prepared by chain extension and conversion reactions of the materials at a high temperature. The protective material has the advantages that the temperature-resistant performance is 60% higher than that of the traditional abrasion-resistant material; the protective material can realize continuous long-time working under the working temperature of 1000 DEG C, is extremely high in corrosion resistance, and can resist abrasion caused by large-particle abrasive materials and small-particle abrasive materials under high-temperature environments.

Description

technical field [0001] The invention relates to a protective material, in particular to a high-temperature and wear-resistant protective material used for wear-resistant equipment in large-scale industrial and mining enterprises, and belongs to the technical field of wear-resistant materials. Background technique [0002] At present, various chemical equipment such as high-temperature kiln equipment, coarse and fine powder separators in thermal power plants, exhaust fan impellers, primary (coal powder) air ducts, etc., have been in high-temperature and harsh operating environments for a long time, and the temperature sometimes reaches 380 Above 1800 degrees Celsius, some can even reach above 1800 degrees Celsius. These devices are subject to high temperature, corrosion and oxidation of materials, wind force and impact of material particles, etc., which make the life of these devices extremely short. Why to ensure the long-term operation of the equipment, usually on these devi...

AI Technical Summary

Problems solved by technology

[0002] At present, various chemical equipment such as high-temperature kiln equipment, coarse and fine powder separators in thermal power plants, exhaust fan impellers, primary (coal powder) air ducts, etc., have been in high-temperature and harsh operating environments for a long time, and the temperature sometimes reaches 380 Above 1800 degrees Celsius, some can even reach above 1800 degrees Celsius. These devices are subject to high temperature, corrosion and oxidation of materials, wind force and impact of material particles, etc., which make the life of these devices extremely short. Why to ensure the long-term operation of the equipment, usually on these devices Apply a layer of wear-resistant and anti-corrosion layer, but the traditional coating can not resist high temperature, the general use temperature is 100-200 degrees Celsius, when the temperature exceeds this, the coating will fall off, melt and deform, and the traditional coating will be in this In this high temperature state, part of the heat is conducted, which affects the performance of these devices and puts the equipment operators in a high temperature dangerous environment, thus easily causing safety accidents; and at extremely high temperatures, traditional coatings The wear-resistant and anti-corrosion performance has also been seriously affected, which will promote the protective effect of the entire coating, which will easily cause serious erosion of these equipment, greatly shorten the service life of the equipment, and increase the maintenance and use costs of the enterprise