Fused Cast Block Magnesia Chrome Brick Manufacturer

Magnesia alumina spinel brick

MgO/% (≥): 80

Al2O3/% (≥): 10

Bulk density (g/cm³) (≥): 2.90

Cold pressing strength (≥): 50 MPa

Standard size: 230*114*65 mm

Advantages of Magnesium Aluminum Spinel Bricks

Corrosion Resistance and Anti-Peeling

Magnesium aluminum spinel bricks contain a high content of magnesium oxide and MgAl2O4, thus they have excellent corrosion resistance and anti-peeling performance. Additionally, due to their closely ordered crystal structure, they can resist stress concentration caused by thermal expansion and thermal shock, thereby reducing the possibility of peeling. 

Good thermal shock stability

The dense and well-bonded crystal structure of spinel magnesia bricks enables them to expand and contract uniformly under rapid temperature changes, minimizing the risk of cracking or spalling. This advantage ensures the integrity and reliability of magnesia spinel bricks in applications involving frequent heating and cooling cycles. 

Magnesia spinel bricks have a relatively low thermal conductivity, which means they have a weak heat transfer capacity. As magnesia spinel bricks minimize heat transfer through their structure to the greatest extent, this advantage enhances their insulation performance. It helps to confine and retain heat in the desired area, thereby improving energy efficiency and reducing heat loss.

Application of Magnesium Alumina Corundum Bricks

Metallurgical Industrial Furnaces

Magnesium alumina corundum bricks are widely used in metallurgical furnaces, including steel-making furnaces, blast furnaces, quenching furnaces, tempering furnaces, and other high-temperature treatment devices. 

Garbage incinerator

The garbage incinerator requires refractory materials that can withstand high temperatures and resist the chemical erosion of waste. The characteristics of magnesia spinel bricks make them an ideal material for the lining of the garbage incinerator, ensuring long-term stability, efficient combustion, and the inhibition of harmful substances. 

Glass Kiln

The glass manufacturing industry extensively uses refractory materials. In the glass industry, kilns often have to withstand high temperatures and chemical erosion. Magnesium oxide spinel bricks have excellent high-temperature resistance and chemical erosion resistance, and can withstand the high-temperature corrosion and thermal cycling during the glass manufacturing process, maintaining the stability of the kiln. 

Cement rotary kiln

The application of magnesiohematite bricks in cement rotary kilns is mainly as the lining material for the kiln shell, which is used to protect the kiln shell from high-temperature erosion and chemical corrosion, and at the same time reduce the heat loss and energy consumption of the kiln shell.