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Fire-resistant high alumina refractory ball introduction
High aluminum refractory ball is also called spherical heat accumulator, the highest heat resistant temperature of high alumina refractory ball can reach 1900 degrees. The fire-resistant high alumina refractory ball can be reversed 20~30 times /h, and the high temperature flue gas can be reduced to about 130℃ after flowing through the heat storage bed.
High alumina refractory ball features
- Corrosion resistance
- High strength
- High heat storage
- Good thermal shock stability
- Good thermal conductivity
- Coefficient of thermal expansion is small
- High softening temperature under high load
More relevant refractory products: High Aluminate Wear Resistant Castable
High alumina refractory ball standard size:
| Item | High alumina | Low creep | Mullite | Corundum |
| Size(mm) | 40-80 | 40-80 | 40-80 | 40-80 |
| Al2O3(%) | 65 | 70 | 75 | 95 |
| Refractoriness under load(°C) | 1450 | 1460 | 1530 | 1650 |
| Apparent Porosity(%) | 25 | 23 | 22 | 18 |
| Bulk Density(g/cm3) | 2.3 | 2.4 | 2.5 | 3.1 |
| Cold crushing strength(Mpa) | 13 | 14 | 32 | 36 |
| Thermal shock resistance (1100°Cwater cooling) cycle ≥ | 15 | 10 | 20 | 7 |
| Refractoriness(°C) | 1710 | 1750 | 1800 | 1800 |
Application fire-resistant high alumina refractory ball
- Regenerative electric boiler
- Regenerative incinerator
- Regenerative furnace for iron and steel industry
- Regenerative ladle roaster
- Air separation equipment heat accumulator
- Regenerative melting furnace for non-ferrous metal industry