Reburned magnesite is mainly made of magnesite with 46% content, calcined at 1600℃-1800℃ through one layer of coal and one layer of magnesite in tin kiln. The production process is two tons of ore to produce a ton of heavy burning magnesia out of the product is divided into three grades; First, before the kiln re-burning magnesia, two, underburning re-burning magnesia, three, large re-burning magnesia, the main color of re-burning magnesia products is hard reddish-brown, re-burning magnesia products are characterized by high fire-resistance.
Reburned magnesia products use: products used in magnesia brick, magnesia aluminum brick, magnesia chrome brick, spray charging material, castable material, dry material, daub material, charging material, asphalt, casting, fire and heat preservation materials, flux auxiliary material, electrical steel-making furnace, heating furnace, rotary furnace, steelmaking, electric furnace bottom and ramming furnace lining. Reburned magnesia is made of natural magnesite, calcined by high temperature shaft kiln, with magnesium content of MgO 80-93%. Use of reburned magnesia: raw material for making bricks and producing unshaped refractories. The finished products are used in steel-making, furnace bottom and ramming furnace lining.
With the development of magnesia industry, more and more attention has been paid to magnesia, which 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 the products of magnesite and other magnesian raw materials that are sintered at high temperature. With shaft kiln, rotary kiln and other high temperature equipment one calcination or two step calcination process, with natural magnesite as raw material fired magnesia is called sintered magnesia; Using magnesite as raw material through arc furnace melting to melt state after cooling is called electrofused magnesite. Magnesia is one of the most important raw materials of refractory materials, used for manufacturing all kinds of magnesia brick, magnesia-aluminum brick, magnesia-carbon brick, ramming material, filling material, etc. Containing more impurities, used for paving the bottom of steelmaking furnace, etc. Magnesia can be divided into electrofused magnesia, medium-grade magnesia, high purity magnesia and re-burned magnesia, etc.
Use of reburned magnesia: raw material for making bricks and producing unshaped refractories. The finished products are used in steel-making, furnace bottom and ramming furnace lining. The use of fused magnesia is: it is an excellent high temperature electrical insulation material, is also an important raw material for the production of magnesia brick, magnesia carbon brick and amorphous refractory materials. The use of medium - grade magnesia is: it is the production of high - grade refractory magnesia raw materials.