Refractory clay bricks are widely used in iron and steel industry, mainly reflected in the lining and protection of key equipment such as blast furnace, hot blast stove and steelmaking furnace. The following is its specific application:

I. Application in blast furnace

Refractory clay bricks are mainly used in the throat, shaft, hearth and bottom of blast furnace. These parts need to bear the impact and wear of high temperature, burden, and the erosion of alkali metals and slag. Clay brick can meet these requirements because of its good thermal shock resistance and wear resistance. In addition, clay bricks are often used in the belly and tuyere area of blast furnace, and the temperature in these areas is high, which requires refractory bricks to have good alkali resistance and slag resistance.

II. Application in hot blast stove

In hot blast stoves, clay bricks are mainly used for vaults and regenerator. Because the hot blast stove needs frequent temperature changes, the thermal shock resistance of clay brick makes it an ideal choice. Its good thermal insulation performance also helps to reduce heat loss.

III. Application in steelmaking furnace

In steelmaking furnace, clay bricks are mainly used in furnace lining and ladle lining. These parts need to withstand the corrosion of high temperature and molten steel, and the corrosion resistance and thermal stability of clay bricks can effectively protect the furnace body. In addition, clay bricks are also used in the lining of mixer, for storing and transporting molten iron.

IV. Other applications

Heating furnace and soaking furnace: clay brick is used for furnace wall and roof, which plays the role of heat insulation and protection of furnace body.

Ladle and tundish: clay brick is used in working layer and can withstand the corrosion of high temperature molten steel.

Flue and chimney: Clay bricks are used for lining, which can withstand the erosion of high temperature flue gas.

V. Summary

Refractory clay brick plays an important role in iron and steel industry because of its good thermal shock resistance, wear resistance and erosion resistance. Its application range is wide, which can effectively protect the furnace body, prolong the service life of the equipment and reduce the maintenance cost.