The magnesium oxide obtained from seawater is called seawater magnesia

The high purity magnesia which is made from sea water is called sea water magnesia. High purity magnesite is produced by flotation purification of natural special grade magnesite through light burning, fine grinding, ball pressing and calcination in vertical kiln of ultra-high temperature oil. It is a brick, indeterminate refractory high quality raw material. Medium-grade magnesia is produced from light magnesia with MgO content of 97% by pressing ball and calcination in high temperature shaft kiln. With good sintering degree and dense crystallization, the product is a high quality raw material for middle-grade magnesia refractory products, and can also be used for manufacturing various magnesia bricks, magnesia alumina bricks, ramming materials, charging materials and so on. Containing more impurities, used for paving the bottom of the steel furnace.

China is the world's producer of refractory raw materials, China's magnesite and crystalline graphite reserves in the world. Over the years, China's high bauxite exports also ranked among the world's top. So the production of refractory in Our country is beneficial to solve the problem of raw materials. China is the world's steel, building materials producer. So the production of refractory materials in China is conducive to solving the sales problems of products on the spot. China's labor costs are low, refractory products are labor-intensive products. So the production of refractories in our country is also conducive to reduce the production cost, improve the competitiveness of products.

Production process method of fused magnesia, its characteristic is using rotary kiln furnace production of fused magnesia fur or furnace production of various ore concentrate magnesium oxide, magnesite roughage, in the furnace, the existing technology is not variable, only within the plate, diaphragm separation is added in the furnace load concentration, external load of coarse grains have partition, partition with high temperature resistant material baffle position within the furnace wall of about 50 mm, formation of coarse grains and enrichment separation layer, and then melt, increase material and is referred to a partition, until melting furnace wei chi, 96.5% purity can obtain more high-quality fused magnesia.

Various magnesia enterprises a dime a dozen, but the quality of the product stability for a long time by questioning and a large number of complaints, metallurgy magnesium, fused magnesium, large crystal and dazzling, as hundreds of kilograms of precision casting factory are generally small capacity of intermediate frequency furnace, each time for a new lining does not need how many magnesia, and to include the use of the furnace life, the quality of sinter and pollution of the liquid metal, such as lining crack repair maintenance cost value, quite frequently delayed shutdown knot lining factory precious time and manpower, many factories have to buy several kinds of specifications of the magnesia and magnesium powder grading and join boric acid, The product that oneself match now brought unfavorable factor to the stability of refractory lining.