Good volume stability Low Cement Refractory Castable for Front Kilneye of Large Cement Kiln
The Description:
Low cement castable is a new type of castable that contains very little binding dose. The key is to use ultrafine particles of no more than 1μm. Its thermal shock resistance, slag resistance and erosion resistance are significantly improved, surpassing similar refractory bricks. Further reduction of binder content can produce ultra-low cement castable and cement-free castable.
The Physical and Chemical Technial Index of Wear-resistance Low Cement Refractory Cment for Front Kilneye of Large Cement Kiln
| Brand Items |
High Alumina |
Mulllite |
Corundum |
| KYSL-16C |
KYSL-16M |
KYSL-17C |
| Al2O3 % ≥ |
65 |
70 |
85 |
| Bulk Density kg/m3 |
110ºC*24h |
2.5 |
2.6 |
2.8 |
| MOR Mpa ≥ |
110ºC*24h |
10 |
11 |
12 |
| 1400ºC*3h |
12 |
13 |
14 |
| CCS Mpa ≥ |
110ºC*24h |
80 |
90 |
100 |
| 1400ºC*3h |
90 |
90 |
100 |
| P.L.C% |
1400ºC*3h |
±0.5 |
±0.5 |
±0.5 |
| Recommended application part |
Rear ourlet,kiln hood,rear end of cooler |
grate cooler,kiln Bood,tertiary duct |
front kilneye of large cement kiln,coal burner |
The feature:
Low cement castable refers to castable with low cement content. The cement content of refractory cement castable is generally 15% to 20%, and the cement content of low cement castable is about 5%, and some even reduce to 1% to 2%. The purpose of reducing the amount of cement is to improve the fire resistance of castable.
It relies on the addition of several special raw materials to obtain good performance: first, pure calcium aluminate cement, due to the high content of effective minerals CaO·Al2O3, the required strength can be obtained with less incorporation. The second silica fume is a glass microbead with a SiO2 content between 93% and 98% and an average particle size of about 0.5μm. After the addition of silica fume, the castable has good fluidity, low water requirement and low sintering temperature, which can improve the performance after heat treatment. Third, alumina powder, it is easier to participate in the reaction, improve the fire resistance of the material. Fourth, water reducer, it can be adsorbed on the surface of the powder, and then produce electrostatic repulsion to disperse the powder, so as to further play the role of micro-powder.
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
Certificates
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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