Product detail
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
Ceramic kiln: It is widely used in the lining of ceramic kilns. The high – temperature resistance and chemical stability can ensure the quality of ceramic products during the firing process.
Glass furnace: In glass – making furnaces, mullite brick can be used as the refractory material for the furnace walls and bottom. It can withstand the high – temperature environment of glass melting and help to maintain the stable operation of the furnace.
Metallurgical industry: In some metallurgical furnaces, such as those used for non – ferrous metal smelting, mullite brick is used to line the furnace to resist the high – temperature and corrosive effects of molten metals and slag.
Product Parameters
| 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 |
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