Andalusite Refractory Brick for Roasting Furnace
The Description:
Rotary kiln, commonly known as rotary kiln, is a steel cylinder, lined with refractory material. In the way of rotating production, in the building materials, metallurgy, chemical, environmental protection and other industries, the material is calcined. Cement industry has the largest number of rotary kilns, there are thousands of them in the country, followed by the number of rotary kilns used in black and non-ferrous metallurgy, iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium and other metals with rotary kilns for ore and intermediate calcination. And calcination of active lime as a steelmaking flux and various uses of dolomite (can be used as converter steelmaking slag agent, metal magnesium raw materials, refractory raw materials, etc.), calcined magnesia, aluminum magnesium spinel, bauxite, hard clay and other refractory raw materials. It can also calcination rare earth, ceramic particles, incineration waste and so on. Different calcined materials, rotary kiln firing temperature is also different, some of the highest temperature up to 2000ºC, some less than 1000ºC.
Technical index:
| Items |
Special andalusite brick |
| Al2O3 % ≥ |
55-60 |
| Fe2O3 % ≤ |
1.2 |
| B.D g/cm3 ≥ |
2.25 |
| Refractoriness ºC ≥ |
1790 |
| RUL ºC ≥ |
1600 |
| % P.L.C 1550ºC×2h |
-0.2 |
| Apparent porosity % ≤ |
18 |
| Creep%(0.2Mpa*50h) |
0.2 |
Product feature:
When andalusite bricks were used to replace spinel composite bricks for 16.1 ~ 19.55m of calcined zone, the surface temperature of the kiln shell was reduced, the weight of the kiln was reduced, and the performance of the kiln skin was good. When the kiln skin was removed after 2 years of use, the andalusite bricks were well preserved, while the composite spinel bricks were seriously spalling. Because the true density of andalusite is lower than that of spinel, if the calcined belt is entirely made of andalusite bricks, the kiln weight can be reduced by 35t and the shell temperature can be reduced by 100ºC. The inlet, kiln head and kiln tail are subject to the impact and wear of massive materials, which are easy to be damaged and spalling, and are the parts with the shortest service life. Wisco uses wear-resistant and alkali-resistant castable, which has been used for more than 36 months without repair. The castable is combined with homogenized bauxite clinker aggregate, SIC 1 ~ 0mm and fine powder, SiO2, Al2O3 micro-powder, ultra-low cement.
Company main products and profiles:
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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