Lightweight Refractory Thermal Insulation Insulating Fire Brick
Raw material:Aluminum silicate glass hollow beads that are flotated from the fly ash of the heat and power plant.Low bulk density,thin wall,hollow,smooth surface,high temperature refractoriness,good insulation performance.With these of the good specifications,the high quality insulation refractory bricks can be made.
Features:high mechanical strength,low thermal conductivity,low operating temperature,better not exceed the test temperature of the re-burning line change.Energy saving,especially in the kilns of batch operation.
| |
NG135-1.3 |
NG135-1.2 |
NG135-1.1 |
NG130-1.0 |
NG125-0.8 |
NG120-0.6 |
NG115-0.4 |
|
g/cm3 ≤
Bulk density
|
1.3 |
1.2 |
1.1 |
1.0 |
0.8 |
0.6 |
0.4 |
| Mpa≥ Cold crushing strength |
5 |
4.5 |
4 |
3.5 |
3 |
2 |
1 |
|
≤2% ℃≥
Linear change on reheating ≤2%
|
1350 |
1350 |
1350 |
1300 |
1350 |
1200 |
1150 |
|
(350±25℃) W/m.k ≤
Thermal conductivity
|
0.55 |
0.5 |
0.45 |
0.4 |
0.35 |
0.25 |
0.2 |
Property of Silica bricks for hot-blast stove
1. Under the condition of long-term high temperature and load, the volume is stable, the high temperature creep rate is low, and one or even two BF service can be used continuously.
2.600℃ above have good thermal shock resistance. Adapt to the variability of temperature of hot-blast stove, keep the bricks and masonry intact;
3. The resistance to chemical erosion is better than that of clay bricks and general high alumina bricks. The alkaline substance in the gas and soot is only limited to the surface forming a glass phase, and does not peel off the silicon brick.
4. The thermal conductivity of silica bricks is larger than that of clay bricks and high alumina bricks, which facilitates the storage and release of heat in a relatively short time.
Product Advantages
1). Water permeability
ZJT brick has super high permeability function, more than 20mm/s which is two times of the standards of similar foreign products. It can handle 60mm/s rainfall. The road and squares paved with it can make rainwater quickly penetrate down to prevent the occurrence of city flood.
2). Water retention
It can be used to reduce the temperature of the environment, restore natural water storage capacity, prevent the depletion of groundwater, and improve the living environment of vegetation.
3). Skid Resistance
Rainwater infiltrates into the ground timely. There is no water. Keep the ground clean. Walking on it brings no danger. Used in public or family kitchen and bathroom floor, it exerts excellent anti-skid effect.
4). Noise Reduction
Porous structure can absorb the vehicle noise, and create a quiet and comfortable environment. It have been widely used in foreign countries in airports, subway and other places.
5). Repeated use
Because of the characteristics of product in the design, it can be used repeatedly, reducing waste in construction of city and the waste of various resources, and produce good economic benefit and social benefit.
6). Compression-resistant, Cold-resistant, weathering-resistant
Made by large tonnage press and high temperature firing. The compressive strength is ≥ 50MPa, suitable for use in the parking lots, common lanes. Its frost resistance value is -25º C.
7). Low carbon emission and environmental protection
Long product life and weathering resistance can bring infinite times repeated recycling.
Application:
• Furnace construction
• Blast furnace/Hot blast stove
• Steel foundries
• Furnace in the nonferrous metal industry
• Coke oven and Gas furnace
Important technical parameters
The fuel for firingCoal ,gas ,oil etc.
Yield of perfect bricks > 90%
Firing temperaturearound 1,000° Celsius (1830°F)
Working timeit burns 24 hours a day, 7 days a week, 365 days a year
Factory Show
Packaging and shipping
Wooden-packing for spare parts of brick making production line, such as aguers, mixing paddles, air compressor is easy damage, it necessary packed in wooden box.
FAQ
Material:
If you are not sure what exact material you need, please tell us your requests on material performance and your specific application, according to which we will offer you the most suitable material.
Drawing:
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Customized designs, sizes and logos are acceptable.
Focus on Details:
No matter how small questions or problems shall be replied and help to solve by our members, even for the small orders.
High Quality:
Based on the strict adherence to ISO9001-2008 or Industry Standard or other International Standard, our inspection engineers carry out full course tracking in the whole production.
Professional Services:
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
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