Lightweight Clay Insulating Brick
Size: International standards
Working Temperature °C: > 1200
Application: Lightweight Clay Insulating Brick be used as inner lining brick of industry kilns wall and industry furnance.
Description
Lightweight Clay Insulating Brick is made of high purity fire clay, by adding combustible, gas evolution method, or foam method.Lightweight fire brick is a kind of porous material with Al2O3 content 30-46%. Its refractoriness is 1580-1750 ℃, refractoriness under load is 1250-1450 ℃, with good thermal resistance and strong ability to resistant acid slag.The bulk density is 0.75-1.2g/cm3, crushing strength is 2.0-5.9MPa, thermal conductivity is 0.221-0.442W/(m.K) (1350℃)
Lightweight Clay Insulating Brick can not be in direct contact with the flame.
Product Characteristics:
-
Low levels of iron and other impurities
-
High refractoriness,but can not contact with the flame directly
-
High porosity, low volume density, low thermal conductivity
-
Good heat insulating effect and energy-efficient
-
Good thermal shock stability.
-
Corrosion and erosion resistance
-
Long service life
Performance parameters：
|
Item
|
Lightweight Clay Insulating Brick
|
|
0. 6
|
0.8
|
1.0
|
1.3
|
|
Al2O3 (%)
|
40
|
40
|
40
|
40
|
|
Fe2O3 (%)
|
1.5
|
1.5
|
1.2
|
2
|
|
SiO2
|
55
|
55
|
55
|
55
|
|
Bulk Density (g/cm3)
|
0.6
|
0.8
|
1.0
|
1.3
|
|
Apparent Porosity %
|
70
|
60
|
55
|
50
|
|
Cold Crushing Strength(Mpa) ≥≥
|
2.0
|
2.5
|
3.0
|
4.0
|
|
Reheating Linear Change (%) ℃ X 12H ≤
|
1300℃
-0.5
|
1350℃
-0.5
|
1350℃
-0.9
|
1350℃
-0.9
|
|
Thermal Conductivity(W/m.k)(1000℃)
|
0.33
|
0.60
|
0.45
|
0.8
|
|
Max Service Temperature (℃)
|
1200
|
1280
|
1300
|
1350
|
Application Areas：
Lightweight Clay Insulating Brick can be used as inner lining brick of industry kilns wall and industry furnance.such as blast furnace, hot blast stoves ,electric arc furnace,cement kiln,melting furnace,ignition furnace,flue,refining equipment,heating equipment and piping, regeneration device, gas furnace,soaking furnace,annealing furnace,heat reaction chamber and other thermal industrial equipment.
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