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The use of fused magnesia

2020-09-18 10:54:53
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The use of ordinary fused magnesia has attracted more and more attention with the development of the magnesia industry. The price of fused magnesia has become an important product in industrial production. Understanding the use of magnesia is of great significance for the better development of magnesia industry. Magnesia is a general term for products produced by high-temperature treatment of magnesite materials such as magnesite to reach the sintering degree. Using high-temperature equipment such as shaft kiln, rotary kiln and other high-temperature equipment for one-step calcination or two-step calcination process, magnesia fired with natural magnesite as raw material is called sintered magnesia; magnesite, etc. as raw materials are smelted in an electric arc furnace to cool down The latter is called fused magnesia. Magnesia is one of the important raw materials of refractory materials, used to make various magnesia bricks, magnesia alumina bricks, magnesia carbon bricks, ramming materials, and repairing materials. Containing more impurities, it is used for paving the bottom of steelmaking furnace. Magnesia can be divided into fused magnesia, mid-range magnesia, high-purity magnesia and re-burned magnesia. 

The reburned magnesia is made from natural magnesite ore and calcined in a high-temperature shaft kiln. The magnesium content is mgo80-93%. The purpose of burnt magnesia: raw materials for making bricks and producing unshaped refractory materials, and the finished products are used for steelmaking, electric furnace bottom and ramming furnace lining.

Fused magnesia is prepared by melting selected special A-grade natural magnesite or high-purity light-burned magnesia particles in an electric arc furnace. The product has high purity, large crystal grains, compact structure, strong slag resistance, good thermal shock stability, and magnesium content of mgo93-98%. Therefore, the purpose of heavy fused magnesia is: it is an excellent high temperature Electrical insulation materials are also important raw materials for the production of high-grade magnesia bricks, magnesia carbon bricks and unshaped refractory materials.

Mid-grade magnesia is made of light-burned magnesia as raw material, produced by pressing ball, high temperature shaft kiln calcination and other processes. The product has good sintering degree, dense crystal, and magnesium content of mgo-95%. The purpose of mid-range magnesia is: it is the production of unshaped refractory materials such as magnesia bricks, mid-range magnesia bricks, and magnesia castables, and is a high-quality raw material for magnesia refractory products.

High-purity magnesia is made by flotation and purification of natural super magnesite ore, which is lightly burned, finely ground, pressed ball, and calcined in ultra-high temperature oil shaft kiln. Magnesium content mgo96-97% high-purity magnesia is used as an ideal raw material for high-grade magnesia refractories such as magnesia bricks, magnesia bricks, magnesia carbon bricks, ramming materials for tundishes, and magnesia castables.

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Mobile: 15084042222 Chairman Zhu

Mobile: 13019619166 Former Manager

URL:www.gmref.cn

Address: Fanma Village, Mafeng Town, Haicheng City, Anshan City

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