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Address: Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China
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Henan Hongtai Kiln Refractory Co.,Ltd. |
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Refractory factory Alumina hollow ball insulation brick as 1800
degree celsius thermal insulation lining of carbon black furnace
The alumina bubble brick also called alumina hollow ball brick.
The anti-stripping alumina hollow ball brick produced by our company is made of alumina hollow balls as the main raw material, high-performance micropowder as the additive, and organic material as the temporary binder, which is fired at high temperature in a shuttle kiln. The product contains a large number of closed pores, has the characteristics of light weight, high temperature resistance, good insulation performance, small shrinkage after re-burning, and excellent thermal shock resistance. It also has strong resistance to corrosive gases and slag.
The products can greatly improve the thermal efficiency of the kiln, shorten the production cycle, reduce the weight of the kiln body, and realize energy saving and consumption reduction. Products can directly contact the flame, suitable for cracking furnaces, hot blast furnaces, heating furnaces, tunnel kilns, push kilns, crucible furnaces and various electric furnaces, electric kiln linings, widely used in metallurgy, refractories, light industry, chemical industry, Ceramics, glass, electronics and other industries. The dimensions, physical and chemical indexes, and service life of the products have reached or exceeded the level of similar products at home and abroad.
Refractory factory Alumina hollow ball insulation brick as 1800 degree celsius thermal insulation lining of carbon black furnace
Physical and chemical properties of alumina hollow ball brick
Alumina hollow ball bricks have the characteristics of light
weight, high temperature resistance, good thermal insulation
performance, small shrinkage after re-fire, excellent thermal shock
resistance, etc., and also have strong resistance to corrosive
gases and slag. The products can greatly improve the thermal
efficiency of the kiln, shorten the production cycle, reduce the
weight of the kiln body, and realize energy saving and consumption
reduction.
| Item | Alumina hollow ball brick | Ultra purity AB | ||
| type | AB85 | AB90 | AB99 | AB99.3 |
| Max working temperature℃ | 1750 | 1800 | 1800 | 1800 |
| Al2O3 % | ≥85 | ≥90 | ≥99 | ≥99.3 |
| SiO2 % | ≤15 | ≤8 | ≤0.3 | ≤0.15 |
| Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.1 |
| Bulk density g/cm3 | 1.4-1.9 | 1.4-1.9 | 1.5-1.8 | 1.5-1.8 |
| Cold crushing strength MPa | ≥18 | ≥18 | ≥15 | ≥12 |
| refractoriness under load ℃(0.1MPa,0.6%) | ≥1700 | ≥1700 | ≥1700 | ≥1700 |
| Reheating linear change %(1600℃×3h) | ±0.3 | ±0.25 | ±0.25 | ±0.25 |
| Thermal expansion coefficient 10-6(25-1300℃) | ~7.8 | ~8.0 | ~8.6 | ~8.6 |
| Thermal conductivity w/(m.k)(Average 800℃) | ≤0.55 | ≤0.6 | ≤0.75 | ≤0.55 |
Advantages of alumina hollow ball insulation brick
Obvious effects will be achieved for reducing the weight of the
furnace body, transforming the structure, saving materials, and
saving energy.
1. High operating temperature:
It can reach above 1750 degrees, with good thermal stability. The
reheating line has a small change rate and can be used for a longer
time.
2. Optimize the structure and reduce the weight of the furnace
body:
The bulk density of heavy bricks currently used with high
temperature resistant materials is 2.6-3.0g/cm3, while alumina
hollow ball bricks are only 1.3~1.5g/cm3. For the same volume of
one cubic meter, the use of alumina hollow ball bricks can reduce
1.1- 1.7 tons weight.
3. Save materials:
To reach the same operating temperature, the price of heavy bricks
is equivalent to that of alumina hollow ball bricks, and
considerable refractory materials are required for insulation. If
alumina hollow ball bricks are used, 1.1-1.9 tons of heavy bricks
can be saved per cubic meter, and 80% of refractory insulation
materials can be saved.
4. Save energy:
Alumina hollow balls have obvious thermal insulation
properties and low thermal conductivity, which can achieve a good
thermal insulation effect, reduce heat dissipation, improve thermal
efficiency, and save energy. The energy saving effect can reach
more than 30%.
Refractory factory Alumina hollow ball insulation brick as 1800
degree celsius thermal insulation lining of carbon black furnace
Alumina hollow ball insulation bricks are mainly used as the lining of high-temperature industrial kilns below 1800℃, such as high-temperature kiln lining bricks in the refractory, electronics, and ceramic industries; thermal insulation for high-temperature thermal equipment, such as the petrochemical industry Insulation bricks for gasifiers, gas generators, carbon black industrial reactors, and induction furnaces in the metallurgical industry. Application in the above-mentioned fields can save energy by 20% to 30%.
This kind of brick is used as the lining of high-temperature kiln, the heating speed should not be too fast during baking, otherwise it will produce cracks, reduce the strength and service life; because of its high apparent porosity, it can not be used in the parts contacting the slag, otherwise it will Damaged by slag penetration.
Alumina hollow ball insulation bricks can be used for high-temperature energy-saving inverted flame kilns, shuttle kilns, molybdenum wire furnaces, tungsten rod furnaces, induction furnaces, nitriding furnaces, etc. Obvious effects will be achieved for reducing the weight of the furnace body, transforming the structure, saving materials, and saving energy.
Refractory factory Alumina hollow ball insulation brick as 1800 degree celsius thermal insulation lining of carbon black furnace
Packaging for light weight alumina hollow ball insulation brick
1.Pallet+Paper or Steel angle bead+Paper board +Plastic or Steel belt +Plastic film
(1)Wooden pallet size:Usually0.92*0.92m(standard brick),but 1*1m (special shape brick) at most,
(2)Load weight of each pallet:Usually 1.2-1.5Tons, max 2.0 Tons.
(3)20 Foot Container can be loaded max 25-26Tons, about 13-21Pallets.
2.Can make the package according to customer's requirements.
Shipping for light weight alumina hollow ball insulation brick
1.FEDEX/DHL/UPS/TNT for samples.
2.By Sea for batch goods.
3.Customers specifying freight forwarders or negotiable shipping methods!
4.Delivery Time for light weight Alumina bubble brick alumina hollow ball brick:
(1)Samples:3 days for common shape samples;15 days for special shape samples.
(2)Batch goods:Within 7-10days for in stock bricks from ordering shipping space to deliver goods and within20-30 days for NO in stock bricks.
Payment Terms
(1)T/T, Western Union,LC;
(2)Usually 30% deposits,70% balance to be paid before delivery or against copy of BL or negotiations
Alumina hollow ball brick as thermal insulation lining of carbon black furnace in petrochemical industry
1. Strong professional:
Our company has thirty years producing experience in refractory
products. Our manager will supervise on a various refractorys
production materials, process control, quality supervision and
package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO9001 quality management system
certification and SGS certification. And the annual supply of
shaped and unshaped refractory product is 28, 800-35, 000 tons.
3. Export experiences:
Now we have gained a global sales network reaching Taiwan, Russia,
South Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo,
Angola, South Africa, and so on.
4. Production equipment:
Production and testing equipments are new, complete and automated
or semi- automated. Such modern facilities and equipments have
provided the fine technical guarantee for the production and
testing.
5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester Bulk Density Tester The Pressure Tester Refractoriness Tester
Hongtai Kiln Refractory has professional sales and after-sale service team who provide customers all-around service about product selection, transportation, installation and operation technology training etc. Now we have established cooperation relationship with many science and research units and our products have been sold to Vietnam, Thailand, Malaysia, South Korea, Pakistan, Kazakhstan, India, Japan, Indonesia, Germany, Italy, Mongolia, Russia, Argentina, colombia, Eygpt, South Africa and etc.
We has over 20 years experience on producing Alumina hollow ball brick as thermal insulation lining of carbon
black furnace in petrochemical industry.
Payment Guarantee: If couldn't trust us at first order, could use trade Assurance.
Jerry Li
Cell&WhatsApp: 0086-13373957739
Email: jerry(at)firebricks-supplies.com
