High alumina bricks are produced by mixing raw materials such as calcined alumina, clay, and other additives, forming them into shape, and firing them at high temperatures in kilns. The firing process ensures the bricks attain their desired properties, such as high refractoriness and strength. High Alumina bricks have great features like high temperature performance, great corrosion and wear resistance, high bulk density, low iron content, etc. High Alumina bricks are extensively used in mining, metallurgy, cement, chemical and refinery and refractory industries. These High Alumina bricks – 85% Al₂O₃ can be applied to electric arc furnaces roofs, steel ladles, cement rotary kiln and its cooler, lime kiln, Aluminum melting furnaces, kiln for chemical industry, reheating furnaces and soaking pits, glass tank furnace and regenerator, etc. Both high alumina bricks and fire clay brick contain aluminum oxide, which is a high hardness compound, melting point 2054℃(3729.2℉). However, high alumina bricks perform better than fire clay bricks under high temperature.
High Almina Bricks Applications
High alumina bricks find widespread use in various industries, including:
1.Steel Industry: Used in the construction of furnaces, ladles, and other high-temperature vessels due to their ability to withstand the extreme heat generated during steelmaking processes.
2.Cement Industry: Employed in kilns and rotary cement kilns for their resistance to alkali attacks and ability to maintain structural integrity at elevated temperatures.
3.Glass Industry: Utilized in the construction of glass tanks and regenerators, where they endure high temperatures and corrosive environments without deteriorating.
4.Petrochemical Industry: Applied in the lining of reactors, furnaces, and boilers, where they provide thermal insulation and resistance to chemical erosion.
5.Incineration Industry: Used to line the combustion chambers of incinerators, where they withstand the intense heat generated during waste disposal.
High alumina bricks are classified based on alumina content, typically ranging from 48% to 99%. Common types include standard, super-duty, high-duty, and special high alumina bricks, each suited for specific applications based on their alumina content and additives. Refractories manufactures high alumina bricks with an Al₂O₃ content range of 45 % to about 99 % and based on natural raw material sources and synthetic raw materials such as:
- Fused alumina and sintered corundum
- Fused mullite and sintered mullite
- Andalusite and kyanite
- Bauxite
- Calcinated fireclay
Reviews
There are no reviews yet.