The refractory clay factory is used in the building materials industry to make high-alumina bricks, phosphate high-alumina refractory bricks, and high-alumina cast bricks for cement kilns and glass melting furnaces. High-alumina clay is calcined and then mixed with limestone to make aluminum-containing cement, which has the characteristics of rapid setting ability and strong corrosion resistance and heat resistance.

The refractory clay factory also has important uses in the grinding industry, chemical industry and ceramic industry. High-alumina clay is melted in an electric arc furnace to produce abrasive materials, of which fused corundum abrasive is the most widely used abrasive, accounting for 2/3 of all abrasive products. High alumina clay can be used to produce various aluminum compounds, such as aluminum sulfate, aluminum hydroxide, aluminum chloride, potassium aluminum sulfate and other chemical products. In the ceramic industry, hard and semi-hard clays can be used as raw materials for the manufacture of household ceramics, architectural ceramics and industrial ceramics.
In addition, high-alumina clays are also used in oil wells, as proppants for oil purification, as fertilizer promoters in agriculture, and as anti-skid, anti-wear paving materials, and so on. Hard clay is also used to make new refractory and heat insulating material refractory fiber, which has the advantages of high temperature resistance, low thermal conductivity, acid and alkali resistance, sound absorption and light weight, and is widely used in metallurgy, machinery, electronics, glass, ceramics and other industries.
The above is a brief introduction to the application knowledge of refractory clay factory.