The heavy burned magnesia is mainly made of magnesite ore with a content of 46%, which is calcined at 1600 ℃ - 1800 ℃ through a layer of coal and magnesite in a iron skin kiln. The production process is to produce one ton of calcined magnesia from two tons of ore, and the product is divided into three grades; 1、 The main color of the calcined magnesia products is hard reddish brown, and the characteristics of the calcined magnesia products are high fire resistance.
Use of heavy burned magnesia products: The products are used for magnesia bricks, magnesia aluminum bricks, magnesia chrome bricks, gunning materials, castables, dry materials, coating materials, furnace repair materials, asphalt, casting, fire prevention and thermal insulation materials, flux accessories, electrical steelmaking furnaces, heating furnaces, rotary furnaces, steelmaking, electric furnace bottoms, and ramming furnace linings.
Slag modifier
Large crystalline fused magnesia products are mainly made by melting 0-3 particles of magnesium oxide with a content of more than 90% in an electric arc furnace. This product has high purity, large crystal particles, compact structure, strong slag resistance, and good thermal shock stability. It is an excellent high-temperature electrical insulation material, and is also an important raw material for producing high-grade magnesia bricks, magnesia carbon bricks, and amorphous refractory materials. Widely used in metallurgy, chemical industry, national defense, scientific research, aerospace, household electrical components, etc.
Characteristics of large crystalline fused magnesia products: high purity, large melting of crystalline particles, high melting point, dense texture; Good thermal shock stability; Good high-temperature bending strength; Good slag resistance and corrosion resistance; Strong thermal conductivity and high insulation.
Use of large crystal fused magnesia product: Large crystal fused magnesia is used as refractory material for the lining of steel making furnaces, and is a high-quality and high-grade basic refractory material for manufacturing refractory bricks and unshaped refractory materials; It can also be used as a filler for making thermocouples and thermal insulation materials (household appliances, etc.); It can also be used as ceramic raw materials and sintering aids, as well as in metallurgy, building materials, chemicals, national defense, medical devices, etc
