Refractory Silica Brick Used For Hot Blast Stove

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Specifications

Characteristic:
1.High refractoriness under load
2.High temperature resistance
3.Corrosion resistance

Product Description

Technical index:

                 
  Item
Coke Oven Silica BrickGlass Furnace Silica BrickHot Blast Stove Silica Brick
JJG-94JBG-95JBG-96JRG-95
SiO2 %94.5959695
Fe2O3 %1.51.01.01.3
CaO %2.52.22.2
Al2O3+Na2O+K2O % 0.50.51
Refractoriness °C1710171017101710
Refractoriness under load T1,°C1650165016601650
Apparent porosity %22(24)22(24)22(24)22(24)
Cold crushing strength Mpa40(35)35(30)35(30)35(30)
True Density g/cm32.332.322.332.34
Thermal Expansion %

1000°C    

1.28(1.30)

   1000°C

1.25

  1000°C

1.25

    1000°C    

1.26

Residual Quartz   %1.01.01.01.0
Creep rate % 1550°C×50h(0.8)



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Q:Why is the new trend of the high thermal conductivity of silica brick
The use of high thermal conductivity of silica brick, reducing coke fuel consumption, reduce emissions of pollutants such as NOx, with considerable economic benefits and social benefits, is the future direction of the new technology of using coke oven refractory.
Q:The production of brick, the ingredients of why join the waste brick
The amount of addition is related to the shape and weight of the brick. The bricks can be added to 20% weight less than 25kg; bricks above 25kg can be added to 30%; for the specific type of brick can be added 30%. into waste silica brick should pay attention to this problem
Q:Such purpose and scope please give me detailed points thank you
Mainly used for coke oven carbonization chamber and the combustion chamber wall, open hearth furnace regenerator and a sediment chamber, soaking furnace, glass furnace, refractory materials and ceramic brick kiln, kiln vault and other load-bearing parts. Also used for high temperature bearing part of hot blast stove and acid open hearth furnace.
Q:Why will expand when heated brick
Because the production of raw materials are silica brick, brick with SiO2 content of not less than 95% of silica as raw materials, adding mineralizer and binder, through mixing, molding, drying, sintering and other processes in the system
Q:The difference between clay refractory bricks and refractory brick in the application.
Clay brick features good thermal shock resistance and low price, but high temperature performance is not well integrated, and the long-term use temperature is not higher than 1300 degrees. It is widely used in low temperature parts of various kilns.
Q:Can iron oxide be used as refractory material?
Iron oxide can not be used as refractory material, but it can be used as refractory additive. Iron oxide can be used as pigment
Q:Semisilica brick, clay brick, high alumina brick and what is the difference?
This is a kind of refractory material is divided into three types: semisilica brick (A12O315 ~ 30%), clay brick (A12O330 ~ 48%), high aluminum brick (A12O3>48%).
Q:Such purpose and scope please give me detailed points thank you because I am learning stage
Acid refractory brick is mainly composed of tridymite and cristobalite and quartz and a small amount of residual glass phase.
Q:The United States of our brick anti-dumping duties?
At present of our brick anti-dumping rate is 73.10%
Q:The difference between clay refractory bricks and refractory brick in the application??
The ability of alkali resistance is poor, the thermal shock stability is the worst, and it is scrapped at one time. The brick is generally used in the coke oven, glass kiln. Other industries basically do not use.

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