Insulation type Refractory Alkali-resistant Fire Brick for Cement Industry
The Description
The mechanism of alkali resistant brick is that it reacts with alkali metal oxides to form a high viscosity liquid phase at high temperature, forming a layer of glazed protective layer, covering the surface of the brick to block the surface porosity, to prevent the penetration and erosion of alkali metal melt, and play the purpose of alkali corrosion resistance.
Ordinary alkali resistant brick is mainly used in cement kiln preheater, decomposing furnace third air pipe and other parts.
High-strength alkali-resistant brick is mainly used in cement kiln preheater, decomposition furnace, tertiary air pipe, vertical rise flue, cyclone straight barrel and cone and other parts.
The arch type alkali-resistant brick is mainly used in the preheater of cement kiln and the third air pipe of calciner furnace.
Insulation alkali resistant brick is mainly used in the back of cement kiln, kiln door cover and cooling machine.
Insulation alkali resistant brick refers to the low aluminum refractory clay as the main raw material, in the cement kiln system has excellent alkali corrosion resistance and very low thermal conductivity, with heat insulation properties of silica-aluminum refractory products.
The Physical and Chemcial Index
| Item |
Ordinary type |
High strength type |
Insulation type |
Vault type |
| Al2O3 % |
25-30 |
25-30 |
25-30 |
30-35 |
| Fe2O3 ≤ |
2 |
2 |
2 |
2 |
| SiO2 % |
65-70 |
65-70 |
60-70 |
60-65 |
| Refractoriness ºC |
1650 |
1650 |
1650 |
1710 |
| Density kg/m3 |
2.15 |
2.25 |
1.65 |
2.2 |
| Apparent porosity % ≤ |
21 |
20 |
35 |
21 |
| CCS Mpa |
35 |
60 |
15 |
35 |
| RUL ºC ≥ |
1350 |
1300 |
1250 |
1400 |
| Thermal conductivity |
1.28 |
1.28 |
0.7 |
1.28 |
The Character:
High-strength alkali-resistant brick products have the characteristics of high strength, volume stability, permeability resistance, alkali erosion resistance and so on.
The Application:
High strength alkali resistant brick is mainly used in cement kiln preheater, decomposition furnace, tertiary air pipe and other parts.
Company main products and profile:
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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