What refractory bricks are used in the metallurgical industry

Various types of refractory bricks are used in the metallurgical industry, and the specific selection depends on different processes, temperatures and media. Here are some common types of refractory bricks found in the metallurgical industry:

1. Refractory high alumina brick

Refractory high-alumina bricks use high-purity alumina as the main component, and usually contain auxiliary materials such as binders and anti-corrosion additives.

High alumina bricks have excellent high temperature resistance, corrosion resistance and mechanical strength, and can resist the erosion of molten metal and slag at high temperatures.

High alumina bricks are commonly used in the metallurgical industry for lining and repairing of high-temperature equipment such as blast furnaces, converters, and electric arc furnaces.

2. Magnesia chrome brick

Magnesia-chrome bricks have high refractoriness, high temperature strength, strong corrosion resistance to alkaline slag, excellent thermal stability, and certain adaptability to acid slag.

3. Silicon Carbide Brick

Silicon carbide refractory bricks are made of silicon carbide powder and binder, with high melting point and excellent high temperature resistance.

Silicon carbide refractory bricks have excellent thermal shock resistance and corrosion resistance for applications under extreme conditions.

Silicon carbide refractory bricks are commonly used in the metallurgical industry for the lining of high-temperature areas such as electric arc furnaces, high-temperature furnaces and foundry equipment.

4. Chrome spinel refractory brick

Chromium spinel refractory bricks are mainly composed of alumina and chromium oxide, and have high temperature corrosion resistance and refractory strength.

It has good stability and durability at high temperatures, and is widely used in equipment such as smelting furnaces and ladles in the metallurgical industry.

5. Silicate refractory brick

Portland refractory bricks are made of silicate materials and use Portland cement as a binder.

Silicate refractory bricks have good high temperature resistance, wear resistance and corrosion resistance, and are widely used in medium and low temperature areas.

Silicate refractory bricks are commonly used in the lining of furnace walls, kiln walls and pipelines in the metallurgical industry.

In addition, there are some other types of refractory bricks such as carbon refractory bricks and castables, which are also used in the special needs of the metallurgical industry. The selection of appropriate refractory bricks depends on factors such as process requirements, temperature range, medium characteristics, and economic costs. When using refractory bricks, relevant construction guidelines and standards should be followed according to specific needs to ensure that they can effectively provide fire protection and prolong service life.