High alumina brick is a kind of refractory with excellent performance, which is widely used in many industrial fields because of its excellent high temperature performance, corrosion resistance, wear resistance and thermal shock resistance. The following are the main uses of high-alumina bricks:

I. Steel industry

Iron and steel industry is one of the most widely used fields of high alumina bricks. High alumina bricks are mainly used in the following aspects in the steel production process:

Blast furnace: high alumina bricks are used in the shaft, belly and bottom of blast furnace. The temperature in the blast furnace is extremely high, and it is eroded by high-temperature slag and molten iron. With its high refractoriness and corrosion resistance, high-alumina brick can effectively protect the furnace structure and prolong the service life of the blast furnace.

Hot blast stove: Hot blast stove is used to provide high-temperature hot air for blast furnace, and its lining needs to withstand high temperature and frequent temperature changes. The thermal shock resistance and high temperature stability of high alumina brick make it an ideal material for lining of hot blast stove.

Ladle and ladle: Ladle and ladle are used to hold high-temperature molten steel and molten iron. High-alumina bricks can withstand the high-temperature erosion of molten steel and molten iron, and at the same time resist chemical erosion, ensuring the safe use of ladle and ladle.

Heating furnace: In the heating furnace, high-alumina brick is used as the lining of the furnace wall and roof, which can withstand the radiation heat and chemical erosion of high-temperature billet and ensure the efficient operation of the heating furnace.

II. Non-ferrous metal industry

The smelting and refining process of nonferrous metals is usually carried out at high temperature, and high-alumina bricks are also widely used in this field:

Melting furnace: used for smelting non-ferrous metals such as copper, aluminum and zinc. High alumina brick can resist the chemical erosion of nonferrous metal melt and bear the mechanical impact during high temperature melting.

Refining furnace: In the refining process, high-alumina bricks are used for furnace lining, which can withstand the corrosion of high temperature and chemical media and ensure the smooth progress of refining process.

Reverberatory furnace: reverberatory furnace is used for smelting and heating nonferrous metals. The high refractoriness and corrosion resistance of high alumina brick make it an ideal material for reverberatory furnace lining.

III. Building materials industry

In the building materials industry, high-alumina bricks are mainly used in the production fields of cement, glass and ceramics;

Cement kiln: Cement rotary kiln is the core equipment of cement production. High alumina brick is used as kiln lining, which can withstand the erosion and chemical erosion of high temperature clinker and prolong the service life of kiln body.

Glass kiln: The glass melting furnace needs to operate at high temperature, and the high-alumina brick can resist the high-temperature erosion of the glass liquid, while maintaining the structural stability of the furnace body and ensuring the quality of glass production.

Ceramic kiln: Ceramic kiln is used for firing ceramic products. The high-temperature performance and thermal shock resistance of high-alumina brick enable it to withstand the high temperature and temperature changes during ceramic firing, ensuring the smooth progress of ceramic production.

Tunnel kiln: Tunnel kiln is used for continuous firing of ceramics, bricks and other products, and high-alumina brick is used for lining the kiln wall and roof, which can withstand high temperature and long-term thermal load.

IV. Energy and Environmental Protection

Coke oven: Coke oven is used to produce coke, and high-alumina brick is used as lining of furnace wall and roof, which can withstand the erosion of high-temperature coke and gas while maintaining the structural stability of furnace body.

Boiler: In coal-fired boilers, oil-fired boilers and gas-fired boilers, high-alumina bricks are used for furnace lining, which can withstand the erosion and chemical erosion of high-temperature flames and improve the thermal efficiency and service life of boilers.

Garbage incinerator: garbage incinerator needs to operate in high temperature and corrosive environment. High alumina brick can resist the corrosion of high temperature flue gas and chemical media, ensure the stable operation of incinerator and reduce the emission of harmful gases.

Hazardous Waste Incinerator: Incinerators used to treat hazardous wastes need materials with high temperature resistance and corrosion resistance, and high-alumina bricks can meet these requirements to ensure the safety and environmental protection of the incineration process.

V. Civil field

Home fireplace: high-alumina brick is used as the lining of home fireplace, which can withstand the direct impact of high-temperature flame while maintaining the beauty and durability of the fireplace.

Pizza oven: In pizza oven, high-alumina bricks are used as furnace lining, which can bear the heat load during high-temperature baking and ensure the baking quality of pizza.

Outdoor oven: Outdoor oven needs high-temperature and corrosion-resistant materials, and high-alumina bricks can meet these requirements, and at the same time, they have good thermal insulation performance and improve the use efficiency of the oven.

VI. Other fields

Petrochemical industry: In the cracking furnace, reforming furnace and other equipment in petrochemical industry, high-alumina brick is used as furnace lining, which can withstand the corrosion of high temperature and chemical media and ensure the stable operation of the equipment.

Electronic industry: In the high-temperature sintering furnace of electronic industry, high-alumina brick is used as furnace lining, which can withstand high-temperature environment, while maintaining the structural stability of the furnace body and ensuring the production quality of electronic components.

Shipbuilding industry: In the boilers and engine rooms of ships, high-alumina bricks are used for lining, which can withstand high temperature and mechanical impact and improve the safety and reliability of equipment.

VII. Summary

High alumina brick is widely used in many fields such as steel, nonferrous metals, building materials, energy, environmental protection and civil use because of its excellent high temperature performance, corrosion resistance, wear resistance and thermal shock resistance. Whether in the lining of high-temperature furnaces or in the protection of equipment in complex environment, high-alumina bricks can provide reliable solutions to ensure the efficient operation and service life of equipment. With the continuous development of industrial technology, the application scope of high-alumina bricks will be further expanded, providing a more solid guarantee for modern industrial production.