Silica Bricks For Coke Oven And Hot Blast Stove

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Shanghai
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Min Order Qty:
15 pallet
Supply Capability:
30000 pallet/month

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General Information

The silica brick can be widely used in coke oven, hot blast furnace, glass furnace and carbon furnace. In glass industry, it is mainly employed to build the doghouse crown, suspended wall of channel, top crown and inlet sealing. In metallurgy industry, it is adopted as the nozzle brick

 

Features

1.High purity

2.Long service life

3.Accurate size tolerance

4.Pure color

5. Luster appearance

6..Good thermal conductivity
7.Good creep resistance

Application of the Acid refractory silica bricks  

 

Silica brick is mainly used for Coke oven, glass kiln, hot-blast stove, tunnel kiln,Acidic furnace non-ferrous metal smelting and some other thermotechnical equipment in good furnace building materials.

 

Physical & chemical indexes of the refractory silica bricks

 

General silica brick:Siliceous refractory products used for various large coke oven, glass kiln stove, hot air stove, etc.

Item

GZ-96

GZ-95

GZ-94

SiO2 % ≥

96

95

94

Fe2O3 % ≤

1

1.2

1.4

Refractoriness °C≥

1710

1710

1690

Apparent porosity % ≤

22

22

24

Cold crushing strength Mpa  ≥

29.4

24.5

19.6

Refractoriness under load, 0.2MPa, °C≥

1660

1650

1640

True density g/cm3 ≤

2.34

2.35

2.35

 

Silica Bricks For Coke Oven And Hot Blast Stove



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Q:The hot blast stove when the temperature did not rise against the brick interface decreased
How to keep the brick masonry temperature not lower than 600 DEG C, while the exhaust temperature is not higher than 400 DEG C.
Q:The chemical composition of silica brick and its physicochemical index?
    Al2O3 SiO2      fe2o3      cao       r2o93~98 0.5~2.5 ;; 0.3~2.5  0.2~2.7;  1~1.5;
Q:Why will expand when heated brick
After high temperature after the formation of tridymite and cristobalite and quartz and a small amount of residual glass phase, quartz heating to 220-240 DEG C, in a certain degree of thermal expansion, brick maximum expansion occurs in 100~300 DEG C, 300 expansion before the total amount of expansion is about 70%~75%.
Q:High temperature refractory material?
Special materials often use AZS brick (i.e. corundum brick), corundum brick, magnesia chrome bricks, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials. Insulation refractories are often used diatomite products, asbestos products, insulation board. Unshaped refractories are often used refractory castable, refractory clay, refractory ramming material, refractory plastic and fettling material, fire resistance, gunning, refractory cast material, fireproof coating, lightweight refractory castable, gun mud.
Q:What is the effect of the content of silicon nitride in silicon nitride bonded silicon carbide brick on the use of electrobath? Thank you
The main damage of silicon carbide side wall brick is stress damage, not chemical erosion. Chemical damage is formed prior to the formation of the groove, and the damage to the chemical erosion is little after the formation of the groove.
Q:Can iron oxide be used as refractory material?
Is widely used in this area. Mentioned refractory material of high school textbooks generally refers to three two aluminum oxide (alumina), alumina is also used as a refractory material, refractory crucible, porcelain, artificial gemstones.
Q:The production of brick, the ingredients of why join the waste brick?
Reduce crack production and improve yield. 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 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?
. According to the relevant legal procedures, the United States International Trade Commission will make a final ruling on the anti dumping industrial injury before January 6, 2014, if an affirmative determination, the U.S. Department of Commerce will be involved in product release tax anti-dumping order.
Q:The difference between clay refractory bricks and refractory brick in the application??
Brick bearing soft temperature and close to the melting point, high temperature strength, can be in high temperature (above 1400 degrees) under the condition of long-term use,

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