Refractory Acid Reistance Silica Brick For Furnace

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
15 m.t.
Supply Capability:
30000 m.t./month

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Product Description:

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  

 

The refractory silica bricks are primarily used for furnaces and kilns in the field of metallurgy, steel, power, chemical industry, and electric power and machine building etc.

 

Physical & chemical indexes of the Acid refractory silica bricks

 

Item

Unit

BGZ-65

SiO2

%

≥65

Al2O3

%

≤30

K2O+Na2O

%

≤1.0

Permanent linear Change(1350°C×2h)

%

±0.2

Apparent porosity

%

≤24

Cold crushing strength

Mpa

≥25

Refractoriness under load, 0.2MPa

°C

≥1350

 

Refractory Acid Reistance Silica Brick For Furnace


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Q:What is the silica refractory products?
Refractory brick with silica content greater than 90%.
Q:What role does silica play in refractories?
The production of clay brick refractory clay raw material is natural, its main mineral is kaolinite (formula Al2O3 - 2SiO2 - 2H2O), clay brick containing SiO2 in 45% ~ 65%, belongs to the weak acid refractory materials, have a certain ability to resist acid slag, but easy to be alkaline slag erosion.
Q:Common bond brick
Manufacturing for silica brick binder hi-li sulfate pulp waste liquid and lime milk. When lime milk is used as a bond, it acts as a plasticizer. To increase the strength of lime brick in the drying process, as mineralizer in the firing, promote the transformation of quartz.
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:The formula in the refractory brick, and firing curve, who knows?
By silica powder, 81-85%, perlite 15-19%, plus the total weight of the main raw materials of the following accessories
Q:Can not use it two brick
The softening temperature is up to 1640~1670 DEG C, and the volume is stable at high temperature for a long time.
Q:Why in the production of the brick to detect the volume density
Fast density test, please consult an instrument.
Q:The specific content is what gb/t2608-2012 brick
The provisions of the brick classification, technical requirements, test methods,
Q:Such purpose and scope please give me detailed points thank you because I am learning stage
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: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.

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