Hot Blast Stove Low-Creep High-Alumina Bricks are specially designed for long-term high-temperature industrial furnaces, providing exceptional performance under sustained thermal load. These bricks combine low creep rate with high alumina content, ensuring excellent dimensional stability, resistance to gas erosion, and prolonged service life. Ideal for use in blast furnace hot-blast stoves and other high-temperature industrial kilns, they maintain furnace integrity even under harsh operational conditions.
Technical Specifications
| Item | XT-55 | XT-60 | XT-70 | XT-80 |
|---|---|---|---|---|
| Al₂O₃%(≥) | 55 | 60 | 70 | 80 |
| Fe₂O₃%(≤) | 2.0 | 2.0 | 2.0 | 2.0 |
| 0.2 MPa Refractoriness Under Load (℃)≥ | 1450 | 1480 | 1530 | 1600 |
| Apparent Porosity (%) | 23 | 22 | 20 | 18 |
| Bulk Density (g/cm³) | 2.3 | 2.45 | 2.55 | 2.65 |
| Cold Crushing Strength (MPa)≥ | 40 | 55 | 60 | 70 |
Key Features
- Low Creep Rate: Maintains structural integrity under long-term high-temperature conditions, reducing lining deformation.
- High Thermal Stability: Excellent resistance to rapid temperature changes and thermal shock.
- Gas and Slag Erosion Resistance: Strong durability against corrosive gases and molten slag in high-temperature kilns.
- High Mechanical Strength: Withstands gas pressure and mechanical impact, ensuring safe furnace operation.
- Customizable Shapes: Available in standard and special shapes including checker, anchor, and polygonal bricks.
Typical Applications
- Blast Furnace Hot-Blast Stoves
- Industrial Kilns with Long-Term High-Temperature Operation
- Special Zones in Steelmaking and Refining Furnaces
Production Details
Hot Blast Stove Low-Creep High-Alumina Bricks are produced using high-grade raw materials such as brown corundum, fused mullite, andalusite, kyanite, and high-purity bauxite. Advanced manufacturing processes include high-pressure molding, precise sintering at high temperatures, and the addition of binders to optimize low creep performance. Bricks are available in customized sizes and shapes to meet specific construction and operational requirements.
Packing and Shipping Details
- Packing: Bricks are securely packed in fumigated wooden crates with foam protection to prevent damage during transit.
- Shipping: Global delivery available via sea, land, or air freight, with certified logistics partners ensuring safe and timely shipment.
Frequently Asked Questions (FAQ)
Q1: What is the difference between standard high-alumina bricks and low-creep high-alumina bricks?
Low-creep bricks use high-temperature raw materials with minimal creep rate and undergo high-pressure forming and high-temperature sintering for superior dimensional stability and thermal resistance.
Q2: Can these bricks be customized?
Yes, they can be made into standard or special shapes such as checker, anchor, and polygonal bricks according to customer requirements. For more details, welcome to contact Xintai Refractory.
Q3. What temperature can these bricks withstand?
Depending on the grade, they can withstand temperatures up to 1790°C while maintaining low creep and structural stability.
Q4: Where are these bricks typically used?
Commonly in blast furnace hot-blast stoves, industrial kilns, and long-term high-temperature furnace lining zones.
Q5: How do they resist gas and slag erosion?
Their high alumina content and dense structure provide excellent resistance to corrosive gases and molten slag.
Q6: What is the service life compared to standard high-alumina bricks?
Low-creep high-alumina bricks have a longer service life due to enhanced thermal stability, wear resistance, and reduced deformation under load.
