What is a blast furnace
The blast furnace is iron-making equipment and the first step in steel smelting. That is, iron ore must be smelted in the blast furnace to obtain pig iron blocks for various purposes or molten iron for steel-making. The shell of the blast furnace is made of steel plate, and the shell is lined with refractory bricks. There is a cooling device between the furnace shell and the refractory material. The blast furnace body is divided from top to bottom into five parts: furnace throat, furnace body, furnace waist, furnace belly and hearth.
What refractory materials are used in blast furnaces
Blast furnace lining refers to the refractory materials built in the blast furnace. The refractory materials in different parts of the blast furnace are exposed to different substances and temperatures. When designing the blast furnace, the refractory materials for the masonry lining should be reasonably selected based on the damage and corrosion mechanisms of the blast furnace parts.
Refractory materials used in blast furnaces include high alumina bricks, corundum bricks, aluminum carbon bricks, silicon carbide bricks, sillimanite bricks, clay bricks, etc.
