- Time:Jun 06, 2023
Magnesia carbon brick is a type of refractory material that is commonly used in high-temperature industrial furnaces, particularly in steelmaking. It is made by combining high-purity magnesia and graphite, and then firing the mixture at high temperatures.
The application of magnesia carbon bricks includes the following:
1. Steelmaking industry: One of the primary applications of magnesia carbon bricks is in the steel industry. They are used in various steelmaking processes, including:
Basic oxygen furnaces (BOF): Magnesia carbon bricks line the converter vessels in BOF steelmaking, where they provide excellent resistance to high temperatures, slag corrosion, and mechanical wear.
Electric arc furnaces (EAF): Magnesia carbon bricks are employed in the EAF for furnace linings as well as the side walls, spouts, and bottoms. They resist chemical attack from molten steel, slag, and other furnace materials.
Ladle linings: Magnesia carbon bricks are used to line ladles that transport and hold molten steel. They offer good resistance to thermal shock and erosion caused by the hot metal and slag.
2. Non-ferrous metal industry: Magnesia carbon bricks find application in non-ferrous metal smelting processes, such as copper, nickel, and aluminum production. They are used in furnaces and converters, providing durability, thermal shock resistance, and resistance to chemical corrosion from molten metals and slags.
3. Cement industry: Magnesia carbon bricks are utilized in cement kilns and rotary kilns due to their ability to withstand high temperatures and chemical environments. They line the burning zone and transition zone of these kilns, providing resistance to alkali attacks, thermal cycling, and abrasion.
4. Petrochemical industry: In the petrochemical industry, magnesia carbon bricks are used in ethylene cracking furnaces, reformers, and other high-temperature process units. They provide resistance to thermal shock, erosion, and chemical attack from hydrocarbons and other aggressive gases.
5. Glass industry: Magnesia carbon bricks find application in glass melting furnaces, where they line the sidewalls, arches, and bottoms. They withstand the high temperatures and harsh chemical conditions present during glass production.
In summary, magnesia carbon bricks are widely used in the steelmaking industry as a refractory lining material due to their excellent thermal shock resistance, high strength, corrosion resistance, and other superior properties.
