[China Glass Network] Modern glass production technology has a qualitative leap compared with traditional technology, and is developing in the direction of higher efficiency, lower energy consumption and better product quality. As the core equipment for glass production, the kiln is also constantly improving its technical level. It has adopted new technologies such as improving combustion intensity, enhancing heat transfer, reducing heat loss and reducing pollution to products and the environment. China's glass industry has developed rapidly and has already become the world's leading glass producer. The rapid development of the glass industry has naturally promoted the development and technological progress of refractory materials for glass kiln in China. Modern glass production technology has a qualitative leap compared with traditional processes, and is developing in the direction of higher efficiency, lower energy consumption and better product quality. As the core equipment for glass production, the kiln is also constantly improving its technical level. It has adopted new technologies such as improving combustion intensity, enhancing heat transfer, reducing heat loss and reducing pollution to products and the environment. The technical progress of the kiln requires a variety of high-quality refractory materials as a guarantee, requiring refractory materials to withstand higher temperatures, more rapid temperature changes, more intense chemical attack, and more severe stress damage. High-quality refractory materials, high efficiency, energy saving and low pollution of the new kiln technology can be realized. High-quality refractory materials are not only consumable materials for modern high-temperature technology, but also functional materials necessary for achieving high-temperature new technologies. Foreign refractories for glass kiln 1, AZS and high zirconia bricks The fused AZS brick is mainly used to improve its erosion resistance and wear resistance. In addition to the oxidation method, the carbon content of the product is reduced to 0.005, and the glass phase precipitation temperature is increased to 1450 °C. The casting and annealing processes have also been improved. High-zirconia bricks with a fused or sintered AZS.ZrO2 content of 90 or more have been produced, and the thermal shock resistance is very good, such as ZrO295, SiO21. 4. The high zirconia brick of stabilizer 3.7 has a bulk density of 4.7 g/cm3, a porosity of 18.4, and a thermal shock resistance of from 15 to 20 times from room temperature to 1400 ° C (15 minute interval). Japan has produced a cast-cast zirconia brick with a zirconia content of 90, called ZFC brick, which has better corrosion resistance than AZS brick with a ZrO2 content of 40. At 1500~1600 °C, no glass phase precipitates after 16 hours. The glass pollution is very small, and there is no crack after 40 times of thermal shock resistance test at 800～1250°C. 2, chrome bricks and chrome bricks The compact chromia bricks formed by isostatic pressing are used for the side walls, necks or other severely eroded parts of E glass and C glass kiln, and the service life can reach 6 to 7 years. In recent years, new progress has been made in chromium-containing products. For example, Cr2O3 is added to AZS brick to form Al2O3-ZrO2-SiO2-Cr2O3 refractory. At high temperature, Cr2O3 forms a solid solution with Al2O3 on the one hand, and Cr2O3 on the other hand. The high melting point material increases the viscosity of the glass phase in the glass phase of the brick, thereby increasing the bleeding temperature of the glass phase and greatly improving the glass erosion resistance of the glass product. A US company produces a recombination-molded AZS/Cr2O3 refractory material with superior chemical composition and physical properties. Compared with the original Al2O3/Cr2O3 material, the annual electricity consumption is reduced by 4, and the output is increased by 15. The cost is Reduced by 3.75, the quality of the glass is not affected. The brick can be formed by machine molding, manual beating or isostatic pressing, and then sintered at a high temperature. 3, alkaline brick High-purity direct-bonded alkaline bricks fired at 1800 °C are widely used in regenerator walls and concrete. Germany has introduced a new material under the trade name RUBINAIEZ, whose chemical composition is MgO75, ZrO213.5, SiO29.5. It is a periclase brick combined with zircon. In the initial stage of sintering, the zirconium silicate in the brick structure reacts with magnesium oxide to form a layer of forsterite and zirconia protective layer around the periclite particles. The anti-alkali and anti-sulfate corrosion properties of the bricks are good for the middle of the regenerator. 4, olivine magnesia brick The olivine-bound phase has a particularly strong anti-corrosion property, and the corrosion resistance of the magnesia brick can be improved by increasing the forsterite content in the magnesia-bonded phase. To this end, 20 pieces of forsterite fines are added to the ingredients of the magnesia brick to form a forsterite matrix which protects the magnesia particles and reduces erosion. The price of the brick is relatively cheap, and it has been widely used in the middle of the lattice of the glass kiln regenerator. 5, 钡 feldspar peridot brick In view of the excellent corrosion resistance of olivine and the lack of thermal shock resistance, the introduction of celsian in its combined phase can significantly improve the thermal shock resistance of bricks. Beryllium is formed during the firing process and is only present in the combined matrix phase. When the content of celsian is 15 , the performance of silicon is better, and the use temperature is about 1250 ° C. Studies have shown that celsian is resistant to alkali and sulfate attack. 6, amorphous refractory materials The application of amorphous refractories in glass kiln is also a trend. The United Kingdom uses refractory concrete prefabricated blocks to build regenerators, lattice bricks, flue pipes, small furnace plates, burners, etc., which greatly reduces the joints of the furnace structure, improves the furnace speed and shortens the cold repair time. ERSOL of France's Xipu is an amorphous refractory series made of ER1681 fused particles. It is used together with fused bricks at the bottom of the pool. It has excellent resistance to glass erosion and has a tendency to precipitate bubbles and form stones. Weak. The ER2SOL series of amorphous materials have been used in some glass kiln pools in Japan. The theoretical research on refractory materials for glass kiln abroad revolves around how to further improve the resistance to glass erosion and improve the mechanical properties, in order to further extend the life of the kiln. SHAOXING OCEAN CO., LTD , https://www.sxgarments.com