Application of high alumina heavy bricks

High alumina heavy bricks are high-performance refractory materials made of bauxite as the main raw material. Its alumina content is usually above 48%. It has the characteristics of high refractoriness, high compressive strength, and excellent slag resistance. Due to its excellent performance, it is widely used in various high-temperature industrial fields.

Application of high alumina heavy bricks

Iron and Steel Industry

High-aluminum heavy bricks are widely used in the iron and steel industry, especially in the high-temperature working environment of metallurgical equipment. The main uses include:
Blast furnace lining: used as blast furnace lining bricks, with good resistance to slag erosion and wear resistance.
Ladle and tundish: as the lining material of the ladle and tundish, it can resist the chemical erosion of molten steel and slag.
Hot iron tank: high-aluminum bricks are used as the lining of the hot iron tank to extend its service life.

Cement industry

In the high-temperature area of ​​cement kilns, high alumina heavy bricks are widely used due to their high-temperature resistance. The main applications include:

Rotary kiln mouth and kiln head: These areas have large temperature fluctuations and are frequently subjected to thermal shocks. The thermal shock stability and corrosion resistance of high alumina bricks are very suitable.
Decomposition furnace and vertical preheater: High alumina bricks can effectively resist alkaline substances and high-temperature environments.

Nonferrous metal smelting

The application of high-alumina heavy bricks in non-ferrous metal smelting is mainly concentrated in smelting and refining equipment. Typical uses include:

Aluminum electrolytic cell: used as the lining material of the aluminum electrolytic cell, resistant to acid and alkali corrosion and excellent wear resistance.
Copper, memimpin, and zinc smelting furnace: In high-temperature smelting furnaces, high-alumina bricks can resist the erosion of molten metal and slag.

Glass Industry

In glass melting furnaces, high-alumina heavy bricks are key refractory materials and are mainly used for:

Regenerator checker bricks: In the regenerator, high-alumina bricks have high compressive strength and can effectively bear the kiln pressure under high temperatures.
Furnace breast wall and furnace bottom: As the breast wall and furnace bottom material of the glass melting furnace, it can resist the erosion of high temperature and glass liquid.

Power and chemical industries

In the power and chemical industries, high-alumina heavy bricks are widely used for linings of high-temperature equipment, seperti:

Circulating fluidized bed boilers: High-alumina bricks are used as boiler linings, with good wear resistance and thermal shock stability.
Chemical kilns: High-alumina bricks can provide excellent protection in the high temperature and highly corrosive environment of chemical kilns.

Ceramics and carbon industry

Ceramic kiln: used as the lining of ceramic kiln, it can withstand high temperatures and long-term operation.
Carbon calcining furnace: High alumina bricks are used as carbon furnace lining materials, and they have excellent anti-oxidation and corrosion resistance.

Advantages of high alumina heavy bricks

• Good high-temperature resistance: refractoriness can reach above 1750℃.
• Rintangan sanga yang kuat: can resist the erosion of acidic and alkaline slag.
• High strength: excellent compressive strength and wear resistance at high temperatures.
• Good thermal shock stability: suitable for environments with frequent temperature fluctuations.