Diatomite insulation brick is often used as insulation for high-temperature kilns and other thermal equipment. Diatomite bricks comprise a small amount of binder and combustible materials added to diatomite. The production of diatomite bricks requires wetting, mixing Raw materials, molding, firing, and other steps.
Physical and chemical indicators of diatomite insulation bricks
Products Properties | FR-0.5 | FR-0.6 | FR-0.7 | FR-0.8 | FR-1.0 |
Bulk density g/cm3 | ≤ 0.5 | ≤ 0.6 | ≤ 0.7 | ≤ 0.8 | ≤ 1.0 |
Cold crushing strength kg/cm2 | ≥ 8 | ≥ 12 | ≥ 20 | ≥ 35 | ≥ 50 |
Reheat shrinkage % at 900° C×8hrs | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Hővezetőképesség W/(M. K)at 300° C mean | 0.11 | 0.15 | 0.18 | 0.20 | 0.23 |
Max service temp ° C | 900 | 900 | 900 | 900 | 900 |
Chemical composition % | |||||
SiO2 | 71.5 | 71.0 | 70.5 | 70.0 | 70.0 |
Al2O3 | 16.5 | 17.0 | 17.5 | 18.0 | 18.0 |
Fe2O3 | 4.0 | 4.2 | 4.5 | 5.0 | 5.0 |
The main chemical composition of diatomite insulation firebrick
Diatomite insulation brick’s main chemical composition is SiO2, followed by Al2O3, and impurities such as iron oxides, potassium, sodium, calcium, and magnesium.
Advantages of diatomite bricks
- The fire-resistant thermal expansion rate is small, and not easy to deform.
- It has lightweight and high compressive strength.
- Good heat preservation effect, and reduces energy consumption.
- Low bulk density and small thermal conductivity.
- The construction is convenient and the surface is smooth.
Application of diatomite insulation bricks
Diatomite insulation bricks are often used in electric power, kohászat, vegyipar, and cement industries, especially in pipes and fireplaces of thermal equipment.
Diatomite insulation brick supplier certificate
Rongsheng success cases
Rongsheng factory has been established for 20 évek, exported to more than 80 országok, and has more than 1,000 transaction customers. We hope to establish a long-term cooperative relationship with our customers.
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