Mullite bricks for hot blast furnace
Mullite brick is a kind of refractory material. It is mainly composed of mullite (3Al₂O₃·2SiO₂). The production process usually involves high - temperature sintering to ensure its excellent performance.
Advantages
High - temperature resistance: Mullite brick can withstand relatively high temperatures. It has good stability at high temperatures and can maintain its structural integrity, generally able to bear temperatures up to about 1800°C. Good thermal shock resistance: It can endure rapid temperature changes without cracking easily. This property is crucial for applications where the temperature fluctuates frequently. Chemical stability: It shows excellent resistance to chemical corrosion. It is less affected by acidic and alkaline substances, making it suitable for environments with various chemical substances.Applications
| Component | Content |
| Mullite (3Al₂O₃·2SiO₂) | Main component, usually above 70% |
| Alumina (Al₂O₃) | Variable content, depending on the grade, about 20 - 30% |
| Silica (SiO₂) | Variable content, about 10 - 20% |
| Trace elements (such as Fe₂O₃, TiO₂, etc.) | Small amounts, usually less than 5% in total |
