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No.108 Huaguang Road,Zibo City,Shandong Province,China
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Monday to Friday: 9AM - 5PM
Chinese Supplier Low Density Hot Blast Furnace Refractory Silica Brick
$0.00
Silica brick is made of quartz containing more than 93% of silicon as the main raw material. It is a firebrick made by high temperature firing. It has strong corrosion resistance to acid slag, high softening degree under load, and does not shrink after refiring. It is mainly used for the partition wall of the carbonization chamber and the combustion chamber of the coke oven, the regenerator chamber of the steel furnace, the soaking furnace, the glass kiln and the ceramic firing kiln, and other supporting parts of the kiln. It is also used for high temperature bearing parts of hot blast furnaces and flat tops of acid furnaces.
| Model No. | Silica Brick | Sio2 | 96% |
|---|---|---|---|
| Fe2o3 | 1.0% | Ap | 22% |
| True Density(g/cm3) | 2.34 | Transport Package | Sea-Fumigated Wooden Pallet+Plastic Film+Blet |
| Specification | customized | HS Code | 6902200000 |
| Origin | China |
Application
Silica bricks line the arch, checkerwork, and parts of the shell in hot blast furnaces. The arch bricks bear upper weight and high – temp gas, while the checkerwork bricks store and exchange heat.
Advantages
- High Refractoriness: With refractoriness around 1690 – 1730°C, they endure furnace heat for stable operation.
- Good Thermal Shock Resistance: Resist rapid temp changes during heating and cooling cycles, preventing cracking.
- Low Thermal Conductivity: Minimize heat loss, improving furnace energy efficiency.
Disadvantages
- Alkali Vulnerability: Prone to alkali attack, as gas alkalis react with silica, shortening lifespan.
- Brittleness: More likely to break under mechanical impact or stress during handling.
