Electro - fused AZS cast blocks have emerged as the preferred wear - resistant materials for the high - temperature areas of glass melting furnaces. This preference stems from their unique composition and structure, which give them outstanding performance under high - temperature and corrosive conditions.
The main components of electro - fused AZS cast blocks are Al2O3, ZrO2, and SiO2. Through a precise control of the Al2O3 - ZrO2 - SiO2 component ratio, a dense structure is formed. For example, with a well - proportioned mixture of 50% - 70% pure alumina powder and high - content zircon sand (rich in zirconia), a structure with high density and low porosity is achieved. This dense structure is crucial for its excellent high - temperature wear - resistance and corrosion - resistance.
In the high - temperature environment of glass melting furnaces, the molten glass is highly corrosive. The dense structure of electro - fused AZS cast blocks effectively resists the chemical erosion and wear caused by the high - temperature glass liquid. The materials prevent crystallization and solidification of the glass liquid, ensuring the stable operation of the melting furnace equipment. Studies have shown that compared with other common materials, electro - fused AZS cast blocks can reduce the wear rate by up to 50% in high - temperature glass melting environments.
In the upper structure of glass melting furnaces, electro - fused AZS cast blocks are used to withstand high - temperature flue gases and thermal shock. Their excellent heat - shock resistance and wear - resistance ensure the long - term stability of the upper structure. In a real - world case, a glass factory in Europe replaced the original materials in the upper structure with electro - fused AZS cast blocks. After a year of operation, the maintenance frequency of the upper structure was reduced by 30%, and the service life was extended by at least 2 years.
On the side walls and feeding channels of glass melting furnaces, electro - fused AZS cast blocks are exposed to direct contact with the high - temperature glass liquid. Their dense structure and chemical stability prevent the penetration of the glass liquid and chemical corrosion. In a large - scale glass production line in Asia, the use of electro - fused AZS cast blocks in the side walls and feeding channels reduced the replacement frequency of these parts by 40%, significantly lowering the production cost.
Proper installation and maintenance are essential for fully utilizing the performance of electro - fused AZS cast blocks. During installation, it is necessary to ensure a tight fit between the blocks to prevent the penetration of the glass liquid. Regular inspections should be carried out to check for signs of wear or damage. If any problems are found, timely repairs or replacements should be made.
A maintenance plan can be developed based on the actual operating conditions of the furnace. For example, in a high - intensity production environment, inspections should be carried out every 3 - 6 months. By following these guidelines, the service life of the glass melting furnace can be extended, and the operating cost can be reduced.
In conclusion, electro - fused AZS cast blocks offer significant advantages in terms of wear - resistance, corrosion - resistance, and heat - shock resistance in glass melting furnaces. Their use can help glass industry technicians and equipment maintenance personnel achieve more efficient production, longer equipment life, and lower operating costs. Discover how electro - fused AZS cast blocks can transform your glass melting operations today!
