Refractory Castable
High Alumina Low Cement Castable for Blast Furnace
High alumina low cement castable for blast furnace is a type of refractory castable material that is used in the lining of blast furnaces. Blast furnaces are large, cylindrical steel structures use...
DESCRIPTION
High alumina low cement castable for blast furnace is a type of refractory castable material that is used in the lining of blast furnaces. Blast furnaces are large, cylindrical steel structures used in the production of iron from iron ore, coke, and limestone.
High alumina low cement castables are composed of high alumina aggregates and a low cement binder system. The high alumina content provides excellent resistance to thermal shock, chemical attack, and mechanical abrasion, while the low cement content provides excellent flowability and easy installation.
The application of high alumina low cement castable in blast furnace lining is crucial because the lining of the furnace is exposed to extremely high temperatures and corrosive gases, which can cause severe damage to the furnace lining. The use of high alumina low cement castables ensures the ability to withstand these extreme conditions, offering long-lasting protection to the furnace, and improving its overall efficiency.
| index | 45% Al2O3 LCC | 60% Al2O3 LCC | 70% Al2O3 LCC | 80% Al2O3 LCC |
| Al2O3 (%) | 45.6 | 59.5 | 67.3 | 82.0 |
| SiO2 (%) | 48.4 | 35.0 | 27.0 | 11.4 |
| TiO2 (%) | 2.2 | 2.0 | 2.4 | 2.8 |
| Fe2O3 (%) | 2.0 | 2.0 | 1.5 | 1.3 |
| CaO (%) | 2.4 | 2.2 | 2.1 | 2.2 |
| MgO (%) | 0.2 | 0.1 | 0.1 | 0.1 |
| Perm. Lin. Ch (%) After 1000° C |
-0.3 | -0.2 | -0.2 | -0.2 |
| Bulk density( g/cm3) | 2.3 | 2.4 | 2.5 | 2.8 |
| Max. Serv. Temp ° C | 1500 | 2000 | 2000 | 2000 |
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