In power plant boilers, the commonly used high alumina bricks are refractory bricks with high Al2O3 content. High alumina brick, also known as a silicate aluminum refractory material with an alumina content of over 48%. It is formed and calcined from raw materials with high alumina content, such as bauxite or other materials. High thermal stability, with a fire resistance of over 1770 ℃. Good slag resistance.
According to specific working conditions and requirements, high alumina bricks are used for the inner lining of power plant boilers
High purity and high alumina bricks: The Al2O3 content of this type of high alumina brick is usually above 80%, and even above 90%. Its high temperature resistance and wear resistance are suitable for the lining of high-temperature areas in power plant boilers, such as combustion chambers, flues, furnaces, etc.
High quality high alumina bricks: This type of high alumina brick has an Al2O3 content of 75%. It has high strength and wear resistance, and is suitable for areas with high temperatures in power plant boilers, such as furnace walls, combustion chamber linings, etc.
Ordinary high alumina bricks: This product is based on calcined alumina as the basic material and added with high alumina minerals. It has high fire resistance and wear resistance, and is suitable for areas in power plant boilers that need to resist chemical corrosion, such as furnace and flue lining.
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