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[China]
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Address: Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China
Contact name:Liu
Henan Hongtai Kiln Refractory Co.,Ltd. |
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Alumina insulating fire brick is an ideal insulating refractory
refractory material, with advantages of high strength, low thermal
conductivity, good insulation property and low price. For various
industrial kilns & furnaces, it is a kind of essential
refractory for energy saving and temperature preservation.
Alumina insulating fire brick is also called high alumina
insulating brick. It contains more than 48% Ai2O3 and mainly
consists of mullite and glass phase or corundum. It is usually made
of high bauxite and a small amount of clay. After the raw materials
are grounded, it is made into mud. Then it is cast and molded and
fired at 1300~1500℃. Sometimes industrial alumimum is used to
replace bauxite. Inorganic matter is added as ignition loss
substance in order to increase the porosity of the refractory.
Feature Of High alumina insulating brick :
1. It has advantages with small bulk density, high cold crushing
strength, and high refractoriness under load, small dimension
tolerance and good thermal shock resistance.
2. It has the lowest and most stable thermal conductivity in
various insulating refractory bricks.
3. It can reduce the total weight of furnace body and the thickness
of furnace wall effectively, improve heat efficiency, lower energy
consumption, improve work conditions and production efficiency, and
considerable economic benefit can be obtained.
Production Process of High alumina insulating brick:
High alumina insulating brick:Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packaging and Shipment
Alumina insulating fire brick has such advantages as high porosity,
good insulation effect, high mechanical intensity, low thermal
refractory fiber board conductivity and long service life. It has
high cold crushing strengh,size precision and holds the most stable
and lowest thermal conductivity of all insulating refractory brick
at present. Its maximum insulating castable service temperature is
1350℃. Thermal efficiency and working condition can be improved,
energy consumption can be lowered, productivity and significant
economic results can be achieved.
Alumina insulating fire brick is characterized by low bulk density.
The total weight of the furnace body and walls thickness can be
reduced effectively.
It has found a wide application in ceramics tunnel kiln, roller
kiln, shuttle kiln, coking furnaces of iron and steel industry and
other thermal equipment. It is mainly used in lining and insulating
layer of areas without strong erosion by high temperature melts.
When in direct contact with flame, the surface contact temperature
can not be higher than 1350℃.
Low price furnace lining and thermal insulation use High alumina thermal insulating fire brick refractory bricks
Physical and Chemical Indexes of High alumina insulating brick
| Item | LG-1.2 | LG-1.0 | LG-0.9 | LG-0.8 | LG-0.7 | LG-0.6 | LG-0.5 | LG-0.4 |
Al2O3 % ≥ | 48 | |||||||
Fe2O3 % ≤ | 2.0 | |||||||
Bulk density g/cm3 ≤ | 1.2 | 1.0 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 |
Cold crushing strength Mpa ≥ | 4.5 | 4.0 | 3.5 | 3.0 | 2.5 | 2.0 | 1.5 | 0.8 |
Permanent linear change temp ≥,less than 2% | 1400 | 1400 | 1400 | 1400 | 1350 | 1350 | 1250 | 1250 |
Thermal conductivity W/m.k 350±25 | ≤0.55 | ≤0.50 | ≤0.45 | ≤0.35 | ≤0.35 | ≤0.30 | ≤0.25 | ≤0.20 |
What is the Shapes &Sizes of our High alumina insulating brick ?
| Straight | Split | Arch | Wedge | Tile | Other Shape |
| L×W×H(mm) 230×114×65 230×114×75 | L×W×H (mm) 230×114×25 230×114×32 230×114×37 230×114×50 | L×W×H/h(mm) 230×114×65/45 230×114×65/55 230×114×75/45 230×114×75/55 230×114×75/65 | L×W×H/h (mm) 230×114×65/45 230×114×65/55 220×114×75/45 220×114×75/55 220×114×75/65 | L×W×H (mm) 230×230×38 230×230×50 230×230×65 230×230×75 | Key brick, Skew brick, Soap, Checker, Neck, Taper, |
We also can make high alumina insulating brick according to customers' drawing and requirements. | |||||
Low price furnace lining and thermal insulation use High alumina thermal insulating fire brick refractory bricks
Applications of High alumina insulating brick
Light Weight High Alumina Insulating Brick is not only widely used
in insulating layers of various of thermal processing equipments,
such as hot blast furnace, coke oven, glass kiln, etc, but also
apply to linings in parts of furnace without strong
high-temperature molten material erosive.
Packing:
Standard export wooden pallet with cardboard and PET strap.
1. Strong packing will protect the goods from any possible damage
during transit.
2. Solid packing and overall stuffing can prevent the cases from
vibration and jarring.
3. We must take necessary precaution that the packing can protect
goods from pilferage or rain.
4. We can confirm that we take every possible precaution to ensure
that our products reach our customers all over the world in prime
conditon.
Shipping:
By vessel or by train from any Chinese port, Samples can be delivered by International express.
Delivery:
15-30 days working day for large quantity. The shipment we will
arrange as soon as possible. Of course, if it is a custom products,
the shipping time will delay.
Sample:
Usually by EMS, DHL, UPS, TNT, FedEx. Anyway you like. Bulk order: Usually by sea.
Payment:
It can be through T/T, L/C at sight. The specific terms determined
according to the quantity of the goods, etc.
Your inquiry related to our product & price will be replied
within 24 hours.
Export:
Our products have been exported to many countries: Australia,
Chile, USA, Russia, UK, Indonesia, etc., good quality have be
approved by our clients.
Henan hongtai kiln refractory co., LTD. is establised in 2012,located in Xinmi City, 40 kilometers southwest of Zhengzhou City in Henan Province, close to JingGuang,Longhai railway lines, with road transport facilities.Rich resoures of Refractory materials, adequate and qualified fuel in this area, provide unique conditions for refractory production,shipping and refractory industry development.
Henan hongtai kiln refractory co., LTD. has been always adhere to the principle of "quality first, credibility first, users first, quanlity and efficiency", has won the honor of "national measurement of qualified units""service standardization standards unit",which are recognized by higher office, was rated as Henan Province Contract and Keeping Promises Company, and has passed through ISO 9001:2000 Quality Mnagement System Confirmatrion, In order to meet the needs of market developemtn, we establish a "production, learning,research"strategic partnership with High Temperature Research Institute of Henann University of Science and Tchnology,and maintain long-term technical cooperation with Luoyang refractory research Institutions, the Iron and Steel Desigh Institute, Wuhan Iron and Steel Design Istitute and other scientific research institutions.Constantly adjust the production process,update product quality,built a solid foundation for wining a higher market hornor. Besides,all staff of high and low temperature furnace desigh, installation, manufacture, commissioning capacity of the company commit to every client: According to the different needs of users, we will thank all users' care by better service,higher product quality!
Production Equipments:
Test Equipments:
