$Silica Insulation Brick for Hot Blast Furnace Applied Refractory System 1$

$Silica Insulation Brick for Hot Blast Furnace Applied Refractory$

$Silica Insulation Brick for Hot Blast Furnace Applied Refractory System 1$

Silica Insulation Brick for Hot Blast Furnace Applied Refractory

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Specifications

refractory silica brick
ISO9001
one of the largesr manufacture
factory price
fast delivery

Hot blast furnace&glass furnace applied refractory silica brick

Introduction of refractory silica brick

Refractory silica brick is dense shaped refractory material and the main materials is SiO2.

Features of refractory silica brick

1) Silicon oxide is above 95%.

2) Good acid glass furnace erosion resistance.

3) High softening point with temperature.

4) No shrink in burn repeatedly.

5) Temperature of refractoriness under load is above 1650º C

Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.

Our capacity:

We have 2 tunnel kiln with 168meters length and 25 sets of compressing machine with 300-500tons capacity. with the annual capacity more than 50,000tons .

Application of refractory silica brick

They are widely used for hot blast furnace,coke oven,glass furnace.The products can be made according with the customers' requirement.

Physical and chemican index:

MARK	JG-95
	Bottom, WallOthers
SiO2,% ≥	95
0.2Mpa Refractoriness Under Load , °C ≥	crystal silica :1650 cementation silica (ShanXi province): 1620
Permanent Linear Change after heating(%), 1450°C×2h(P.L.C)	+0.2 0
Apparent Porosity(A.P),% ≤	22(23)24
Cold Crushing Strength(C.C.S), Mpa ≥	3025
Real Density g/m3 ≤	2.342.35
Rate Of Thermal Expansion (R.T.E)(1000°C),% ≤	1.281.30
Residual Quartz (%) ≤	1

$Hot Blast Furnace Applied Refractory Silica Brick$

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: The specific content is what gb/t2608-2012 brick: Quality assessment procedures, packaging, marking, transport, storage, and quality certificates. Suitable for siliceous refractory bricks.

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: Small fluctuations in the chemical composition do not have a significant effect on use. The key is the operation of the electrolyzer in production to determine whether the side wall will be damaged.

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,

Q: Semisilica brick interpretation: High temperature volume stability. Volume change is small.

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: The brick is mainly used in the place?: Also used for high temperature bearing part of hot blast stove and acid open hearth furnace.

Q: How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?: Mainly from the impurities to determine how much, generally less impurity single color brick.

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: What are the main constituents of refractory bricks?: Clay brick and clay brick are mainly composed of mullite (25% ~ 50%), glass phase (25% ~ 60%) and square quartz and quartz (up to 30%). Usually with hard clay as raw material, pre calcined mature material, and then with soft clay, semi dry or plastic molding, the temperature at 1300~1400 C fired clay brick products. Can also be added a small amount of water, glass, cement and other binders to make non burning products and amorphous materials. It is a refractory brick commonly used in blast furnaces, hot blast furnaces, heating furnaces, power boilers, lime kilns, rotary kilns, ceramics and refractory bricks.

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