- Time:Aug 25, 2023
Alkaline refractories, also known as basic refractories, are materials that have a high resistance to alkaline substances and are commonly used in various industrial applications. Here are some of the main applications of alkaline refractories:
1. Steelmaking industry: Alkaline refractories find extensive use in steelmaking processes such as steel ladles, converters, and electric arc furnaces. They line the inner walls of these equipment to withstand high temperatures, basic slag, and chemical reactions with molten metal.
2. Cement industry: In cement kilns, rotary kilns, and other high-temperature zones within cement production plants, alkaline refractories are utilized due to their ability to resist the corrosive effects of alkaline compounds present in cement raw materials and fuels.
3. Lime and dolomite industry: Alkaline refractories are employed in lime kilns and dolomite converters for the production of lime and dolomite. They withstand the high temperatures and alkaline conditions involved in the calcination process.
4. Non-ferrous metallurgy: Alkaline refractories are utilized in non-ferrous metal smelting and refining processes. They are used in equipment like copper converters, aluminum electrolysis cells, and nickel flash smelting furnaces, where they exhibit resistance to corrosion from alkaline slags and molten metals.
5. Glass industry: Alkaline refractories find application in glass melting furnaces and regenerators. They provide resistance to the corrosive effects of alkaline compounds present in glass batch materials and help maintain the structural integrity of the furnace lining.
6. Petrochemical industry: In petrochemical plants, alkaline refractories are used in various units such as fluid catalytic cracking (FCC) units, hydrogen reformers, and pyrolysis furnaces. They resist the corrosive effects of alkaline substances and high-temperature environments encountered in these processes.
7. Waste incineration: Alkaline refractories are employed in waste incinerators, where they withstand the high temperatures and alkaline conditions resulting from the combustion of waste materials.
These are some of the key applications of alkaline refractories. Their ability to resist alkaline materials, thermal stability, and durability make them suitable for use in industries where exposure to alkaline environments is prevalent.
