High alumina refractory brick is a kind of alumina silicate refractory brick with alumina content above 48%. High alumina fire brick is mainly made of high alumina bauxite as refractory raw material, added with other powders and binders, and then mixed into the refractory brick making machine for compression molding. After being dried, it enters the high temperature tunnel kiln and fired into refractory bricks.
Due to the wide range of refractory materials and stable properties of high temperature high alumina bricks, high alumina bricks are used as basic materials in the field of high temperature technology. Applications include cement, glass building materials, iron and steel smelting industries, petrochemical industries, etc.; high temperature industrial furnaces for high alumina bricks There are linings of blast furnace, hot blast furnace, electric furnace top, blast furnace, reverberatory furnace, and rotary kiln. In addition, high alumina fire bricks can also be processed into open hearth regenerative checker bricks, plugs for pouring systems, nozzle bricks, etc. according to the needs of industrial kilns, and can also be produced and processed into various shapes of high alumina refractory according to customer requirements refractory brick.
The physical and chemical indexes of high alumina refractory bricks are different, and the uses of high alumina refractory bricks are also slightly different. Based on common bulk density, high alumina refractory bricks are 2.1g/cm3, 2.2g/cm3, 2.3g/cm3, 2.4g/ cm3, if used in the same high-temperature industrial kiln, high alumina refractory bricks with different bulk densities need to be used in different parts.
From a macro point of view, high alumina bricks can be used in a variety of high temperature industrial kilns. From a micro point of view, high alumina bricks with different physical and chemical indexes are used in different parts of the same high temperature kiln.
In the refractory industry, most of the refractory raw materials used in refractories are processed from natural ores. Therefore, the principle of high alumina bricks for high-temperature industrial kilns is that low grade high alumina bricks can meet the needs of use, and there is no need to use high grade high alumina bricks.
