Firebricks is a neutral refractory material, which is calcined from bauxite or other raw materials with high oxide content. The thermal shock stability is high, and the fire resistance limit is above 1770 ℃. Good slag resistance. Refractory bricks are mainly used for the lining of steelmaking furnaces, glass furnaces and cement rotary kilns.
Due to the rapid development of the refractory industry, there are more and more types of firebricks, and refractory bricks with different characteristics and uses are made of different raw materials and production processes. The following introduces the raw materials and production process of high alumina bricks:
Raw materials and production process of high alumina bricks:
The main component of high alumina brick is Al2O3, generally made of refractory raw materials: super calcined bauxite; sillimanite family: kyanite, andalusite, sillimanite, etc.; synthetic raw materials are: industrial alumina, synthetic mullite , fused corundum, etc.
The production process of high-alumina bricks and multi-clinker clay bricks is similar. The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90-95%. The clinker needs to be classified and screened before being broken. The tank is mixed and kneaded, and then machine-pressed and formed. After the refractory bricks pass through professional drying equipment, they are sent to high-alumina bricks for high-temperature firing in a tunnel kiln. The kiln temperature is generally 1500-1700 °C. The fired refractory bricks will be cooled in the cooling zone, and the quality inspectors will sample and inspect the cooled refractory bricks.
The above is the production process of high-alumina bricks. If you need any high-alumina bricks, or other refractory products, you can visit , check the professional fire bricks manufacturers, and get professional solutions and quotations.
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