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Ceramic fiber blanket for boiler insulation description
Ceramic fiber blanket for boiler insulation is called ceramic fiber blanket because one of its main components is alumina, and alumina is the main component of porcelain. The ceramic fiber blanket does not contain any organic binder to ensure that the ceramic fiber blanket has good manufacturability and stability under high and low temperature conditions.
Ceramic fiber blanket for boiler insulation features
Ceramic fiber blanket for boiler insulation can maintain good tensile strength, toughness and fiber structure when used in neutral and oxidizing atmosphere for a long time. Temperature resistance is 950-1400℃.
More relevant refractory products: Magnesia carbon brick
Ceramic fiber blanket index
| Type | Common | Standard | High purity | High alumina | Zirconium containing |
| Classification temperature, ℃ | 1100 | 1260 | 1260 | 1360 | 1430 |
| Service temperature, ℃ | ＜1000 | 1050 | 1100 | 1200 | 1350 |
| Color | White | White | White | White | White |
| Bulk density, kg/m3 | 96-128 | 96-128 | 96-128 | 128-160 | 128-160 |
| Permanent liner change, % | -4 | -3 | -3 | -3 | -3 |
| After 24 hours, Bulk density 128kg/m3 | 1000℃ | 1000℃ | 1100℃ | 1250℃ | 1350℃ |
| Thermal conductivity under each section, | 0.09(400℃) | 0.09(400℃) | 0.09(400℃) | 0.132(600℃) | 0.76(800℃) |
| w/m·k, Bulk density 128kg/m3 | 0.176(800℃) | 0.176(800℃) | 0.176(800℃) | 0.22(1000℃) | 0.20(1000℃) |
| strength of extension, Mpa, Bulk density 128kg/m3 | 0.08-0.12 | 0.08-0.12 | 0.08-0.12 | 0.08-0.12 | 0.08-0.12 |
| Al2O3, % | 44 | 46 | 47-49 | 52-55 | 39-40 |
| Al2O3+SiO2, % | 96 | 97 | 99 | 99 | – |
| Al2O3+SiO2+ZrO2, % | – | – | – | – | 99 |
| ZrO2, % | – | – | – | – | 15-17 |
| Fe2O3, % | ＜1.2 | ＜1.0 | 0.2 | 0.2 | 0.2 |
| Na2O+K2O, % | ≤0.5 | ≤0.5 | 0.2 | 0.2 | 0.2 |
Ceramic fiber blanket application
- High temperature heat insulation of steel and petrochemical
- Industrial kiln, heating device wall lining
- Heat insulation and insulation of high temperature pipeline
- Heat insulation and insulation of high temperature equipment
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