Application of high-aluminum refractories in high-temperature industries

High alumina refractories are widely used in high-temperature industries. The following is a detailed description of their applications:

1. Iron and steel industry

Blast furnace

High alumina refractories are used in the lining, tuyere, iron mouth and other parts of the blast furnace. The blast furnace is a key equipment for steel production. Its internal temperature is as high as thousands of degrees, and it needs to withstand harsh conditions such as high temperature, high pressure, and slag erosion. High alumina refractories ensure the long-term stable operation of the blast furnace with its high refractoriness, good thermal shock resistance and wear resistance.

Converter

The converter is an important equipment for steelmaking, and its working environment is extremely harsh. The application of high alumina refractories in the converter mainly includes the lining, furnace mouth, steel outlet and other parts. The thermal shock resistance and erosion resistance of high alumina refractories can meet the frequent temperature changes of the converter and the flushing of molten steel and slag, ensuring the safety and efficiency of the steelmaking process.

Electric furnace

The electric furnace is a device that uses electric energy to make steel, and its temperature control is relatively precise. The application of high alumina refractory materials in electric furnaces is mainly in the furnace roof, furnace wall and other parts. The high refractoriness and good insulation performance of high alumina refractory materials can effectively maintain the temperature stability of the electric furnace and improve the efficiency of steelmaking.

Ladle

The ladle is a container for molten steel, and its working temperature is also very high. High alumina refractory materials are used for the lining of the ladle, which can resist the erosion and scouring of molten steel, ensuring the quality of molten steel and the service life of the ladle.

2. Non-ferrous metal industry

In non-ferrous metal smelting, high alumina refractory materials also play an important role. Due to the high melting point of non-ferrous metals, the smelting process needs to be carried out at high temperature. The high refractoriness and chemical stability of high-aluminum refractory materials can effectively prevent non-ferrous metals from reacting with refractory materials, ensuring the purity and recovery rate of non-ferrous metals. High alumina refractory materials are widely used in non-ferrous metal smelting furnaces, refining furnaces, reverberatory furnaces and other equipment.

3. Glass Industry

Glass melting furnace

Glass melting furnace is the core equipment of glass production, and its internal temperature is as high as thousands of degrees. High alumina refractory materials are used in the pool wall, pool bottom, blast hole and other parts of the glass melting furnace, which can withstand the erosion and scouring of high-temperature glass liquid to ensure the stability of the glass melting process.

Glass fiber production

In glass fiber production, high alumina refractory materials are also widely used in drawing furnaces, crucibles and other equipment. These equipment need to operate for a long time at high temperature. The high refractoriness and stability of high-aluminum refractory materials can meet production requirements and ensure the quality and output of glass fiber.

4. Cement industry

Cement rotary kiln is a key equipment for cement production, and its internal temperature is also as high as thousands of degrees. High-aluminum refractory materials are used for the lining of rotary kilns, which can resist high temperature, wear and chemical erosion, and ensure the smooth progress of cement production. At the same time, the good thermal insulation performance of high alumina refractory materials can also reduce heat loss and improve energy efficiency.

5. Other industrial fields

Chemical industry

High alumina refractory materials are also widely used in chemical equipment, such as oil refining, chemical reactors, high-temperature pipelines and other equipment. Its good resistance to chemical erosion can maintain long-term stable performance in harsh environments such as high temperature, high pressure, and corrosion.

Mechanical field

In the mechanical field, high alumina refractory materials can be used in the enamel of high-speed power machinery and other fields to meet the requirements of high temperature, high pressure, and wear resistance.

6. Development trend

With the continuous development and technological progress of high-temperature industry, the performance requirements for high-aluminum refractory materials are also constantly increasing. In the future, high-aluminum refractory materials will develop in the direction of higher refractoriness, better thermal shock resistance, stronger corrosion resistance and lower thermal conductivity. At the same time, with the increasingly stringent environmental protection requirements, the production of high alumina refractory materials will also pay more attention to environmental protection and energy saving. Developing green and environmentally friendly high-aluminum refractory materials and reducing pollution and energy consumption in the production process will be the future development trend.

In summary, high alumina refractory materials play a vital role in high-temperature industry, and their application fields are wide and expanding. With the continuous advancement and innovation of technology, high-alumina refractory materials will continue to show their unique charm and value in the future high-temperature industry.