The firebrick that steel-making furnace uses needs to have tall fireproof degree, the character such as the heatproof shake sex, aggressivity that fight broken bits, corrode in order to get used to high temperature, chemistry, the severe exacting condition such as mechanical concussion. Different position differs as a result of working environment, uses firebrick also somewhat difference. It is steel-making furnace below type of commonly used a few kinds of firebrick reachs his main use:
1.Magnesian carbon brick
Characteristic: Magnesian carbon brick is the firebrick that makes for bases with magnesia and carbolic element material, have intensity of the exceedingly good aggressivity that fight broken bits, high temperature and heatproof shake sex. Carbolic affiliation enhanced the heatproof shake sex of firebrick not only, still promoted corrosion resistance, make its can resist slag is eroded.
Utility: Magnesian carbon brick basically is used at steel-making furnace (especially electric arc furnace and converter) furnace wall and mouth area. These area temperature are higher, get easily of slag and melt metal erode, the character of magnesian carbon brick makes its fit this kind of harsh environment very much.
2.Brick of aluminium magnesium carbon
Characteristic: Brick of aluminium magnesium carbon is aluminous qualitative part is added on the foundation of magnesian carbon brick, the aggressivity fighting broken bits of the heatproof shake sex that makes its hold an aluminous simple stuff concurrently and magnesian carbon brick. Of brick of aluminium magnesium carbon high temperature resistant performance is better, can reduce the loss of lining material effectively.
Utility: Brick of aluminium magnesium carbon is commonly used the furnace wall at electric stove and roof, and the broken bits line of converter and hearth place. These place are easy be eroded by acuteness thermal shock and slag, of brick of aluminium magnesium carbon be able to bear or endure erode function makes its suit to be used at these area.
3.Tall aluminous brick
Characteristic: Tall aluminous brick contains taller alumina part, fireproof degree taller, have good heatproof shake sex and corrosion resistance. Although the sex fighting broken bits of tall aluminous brick is inferior to magnesian carbon brick, but its fireproof function enough answers high temperature environment.
Utility: Tall aluminous brick is commonly used mix at roof, body of heater inferior lukewarm area, for instance the upside of boiler setting. Asking heatproof shake sex is mixed especially taller fireproof below spent circumstance, tall aluminous brick makes the good choice of these area.
4.Dolomite brick
Characteristic: Dolomite brick is made for main raw material with dolomite, have the good performance that fight broken bits, the performance when handling basic slag especially is good. Its are fireproof degree taller, but heatproof shake sex is relatively general, fit relatively stable temperature environment.
Utility: Dolomite brick basically is used at position of line of converter broken bits, because section of broken bits line lies,this is of slag and molten steel boundary, requirement material has the good sex that fight broken bits. The basic character of dolomite brick makes its suit to be used at the area with more basic slag.
5.Magnesia brick
Characteristic: Magnesia brick bases is magnesian, fireproof degree tall, have fight basic slag admirably function and high temperature resistant quality, but its fight thermal shock sex opposite weaker, fit the environment with relatively stable temperature.
Utility: Magnesia brick is commonly used the liner that waits for area at bag of converter, steel and hearth, use the effect below high temperature, alkalescent environment especially good.
6.Zirconium stone brick
Characteristic: Bases is zirconium stone brick zirconia, fireproof degree tall, the chemistry below can counteractive high temperature is corroded, have the good aggressivity that fights melt metal and broken bits can.
Utility: Zirconium stone brick basically is used at the place of crucial high temperature of steel-making furnace, for instance mouth is mixed hearth. In these place, the wear-resisting with material very strong need and anti-corrosive ability, the character of zirconium stone brick makes its make good choice.
Summary steel-making furnace chooses different firebrick according to the working requirement of different position normally, common combination is:
Furnace wall and mouth: Brick of magnesian carbon brick, aluminium magnesium carbon. Roof and boiler setting upside: Tall aluminous brick. Broken bits line and hearth: Dolomite brick, magnesia brick. Place of crucial high temperature: Zirconium stone brick.
These firebrick are collective action, those who ensure steel-making furnace falls in high temperature and acuteness and chemical corrosion environment is long stability moves.
Get Price
WhatsApp