High-alumina insulating brick description

The high-alumina insulating brick is an insulating refractory product made of bauxite as the main raw material and having an AL2O3 content of not less than 48%. The production process uses a foaming method, and a burn-in addition method can also be used.

High-alumina insulating bricks can be used for masonry insulation and areas where there is no strong high-temperature molten material to erode and wash. When in direct contact with the flame, the surface contact temperature of general high-alumina insulating bricks shall not exceed 1350 °C. The mullite insulating brick can directly contact the flame, and has the characteristics of high temperature resistance, high strength and remarkable energy saving effect. It is suitable for the lining of pyrolysis furnace, hot blast stove, ceramic roller kiln, electric porcelain drawer kiln and various resistance furnaces.