Wall Silica Refractory Brick for Coke Oven
The Description:
Silica brick for coke oven (silica brick for coke oven) refers to the silica refractory products used for laying coke oven with squamous quartz as the main crystal phase. Modern coke oven is a huge thermal equipment built by thousands of brick types and tens of thousands of t refractory materials. Silicon brick is the main material of its masonry, constituting the basic part of the coke oven: regenerator wall, ramp, combustion chamber, carbonization chamber, furnace top, etc., accounting for 60%-70% of the total refractory brick a coke oven furnace service of about 20~30a, some as high as 45a. The quality of silicon brick of coke oven is one of the factors affecting the service length of coke oven. With the large scale of coke oven, the temperature of main fire passage increases, and the quality of silicon brick of coke oven becomes more important.
The Physical and Chemical Index :
| Items |
Specification |
| JG-94 |
| Floor |
wall |
other positions |
| SiO2% |
94.5 |
94 |
| Fe2O3 % (≤) |
1.2 |
1.5 |
| Al2O3 ≤ |
1.2 |
1.5 |
| CaO% ≤ |
3.0 |
3.0 |
| Na2O+K2O% ≤ |
0.35 |
0.35 |
| Apparent porosity % ≤ |
22 |
24 |
| CCS ,MPa (≥) |
40 |
35 |
28 |
| Refractoriness under load ≥ |
1650 |
| True Density g/cm3 |
2.33 |
2.34 |
| Residual quartz % |
1.5 |
| Permanent linear change% |
0-0.2 |
| Thermal expansion%≤ |
1.28 |
1.3 |
The Character:
Silicon brick is an acid refractory material, with good acid erosion resistance, its thermal conductivity is good, the load softening temperature is high, generally above 1620ºC, only 70~80ºC lower than its refractoriness. The thermal conductivity of silicon brick increases with the increase of working temperature, there is no residual shrinkage, and the volume of silicon brick increases with the increase of temperature in the oven process. Therefore, silicon bricks are ideal refractory products on coke ovens, and important parts of modern large and medium-sized coke ovens (such as combustion chambers, ramps and regenerators) are built with silicon bricks.
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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