thermal insulating refractory clay refractory bricks
Definition:
thermal insulating refractory clay refractory bricks refer to light-weight thermal insulation brick products with Al2O3 content of 30%-46%. With clay clinker or light clinker and plastic clay as the main principle, it is usually produced by the combustible method. It can also be produced by the chemical method or foam method to form a porous structure. The use temperature is 1200-1400℃. The refractory is characterized by high porosity, generally 40%-85%; low bulk density below 1.5g/cm3; low thermal conductivity, generally below 1.0W (m.K).
Compared with ordinary clay bricks,thermal insulating refractory clay refractory bricks are lighter in weight. The heat-insulating refractory products with Al2O3 content of 30%~48% made of refractory clay as the main raw material. Using refractory clay, floating beads, and refractory clay clinker as raw materials, adding binders and sawdust, after batching, mixing, molding, drying and firing, products with a bulk density of 0.3~1.5g/cm3 can be obtained. It accounts for more than half of the total output of heat-insulating refractory bricks, with tiny pores evenly distributed inside, with a high porosity. Therefore, it can be ensured that the furnace wall loses less heat, and the fuel cost will be reduced accordingly. Lightweight clay bricks also mean less heat storage, so heating and cooling are faster, allowing faster periodic operations. Lightweight clay refractory bricks are suitable for the temperature range of 900℃~1650℃.
Advantage:
1. High refractoriness,
2. High-temperature endurable.
3. Good corrosion resistance.
4. Good spalling resistance and wear resistance.
5. Good thermal shock resistance.
6. High mechanical strength.
7. High-temperature creep rate is low.
8. Good volume stability at high temperature.
Application:
Fire Clay Brick Light Weight is mainly used for the partition of coking chamber and combustor of coke making furnace, regenerator chamber and cinder chamber of steelmaking open hearth furnace, soaking pit, refractory material of glass melting furnace and sintering furnace of ceramics and other kiln vault and other load-bearing parts.
It is also used for high temperature load bearing parts of hot blast furnace and acid open hearth furnace top.
Product Description:
Fire Clay Brick Light Weight | ||||
Item | NG135-1.3 | NG135.1.2 | NG135-1.1 | NG130-1.0 |
Bulk Density ( g/cm3) | ≤1.3 | ≤1.2 | ≤1.1 | ≤1.0 |
Cold Crushing Strength (MPa) | ≥5.0 | ≥4.5 | ≥4.0 | ≥3.5 |
Linear Change on Reheating(5h,≤2%) | ≥1350 | ≥1350 | ≥1350 | ≥1350 |
Thermal conductivity(350±25)℃ (W/mK) | ≤0.55 | ≤0.50 | ≤0.45 | ≤0.40 |
Packaging and shipping
Standard packing: waterproof inner packing + outer packing suitable for container transportation
Why choose us
Q: Are you trading company or manufacturer?
A: We are Manufacturer of refractory materials that have 4 plants in China; So we can provide you with high quality products at more competitive prices. we can provide you professional solutions about your problems. Although our salesman cannot reply you immediately, pls leave your email or phone number, we can let our technician directly help you ASAP.
Q: Do you accept OEM?
A: Sure, we can do OEM for much kind of brick.
Q: What information do we need to provide?
A: If you are clear about the products you purchased, please send us the brick drawings, index(include chemical and physical indicators )and order quantity.
If you are not familiar with it, please tell us the usage and working temperature, we will recommend the product to you.
Q: How long is delivery time?
A: The delivery time will be determined according to the quantity of the order. Our monthly output is 12000tons. We have good connection with shipping company, agency, as well as the local custom and port authority. making sure we deliver on time.