Introduction
Hot blast stove high alumina bricks are premium refractory products manufactured from high-quality bauxite chamotte with strict quality control. Through high-pressure forming and sintering at elevated temperatures, the bricks develop a dense structure with low apparent porosity. They exhibit high refractoriness up to 1790℃, high load softening temperature and excellent resistance to both acidic and basic slag attacks. The products are widely used in checker chambers, combustion chambers and regenerators of hot blast stoves, where thermal efficiency and structural integrity are critical.
Key Advantages
Specification
| Item | JH-DRL-150 | JH-DRL-145 | JH-DRL-140 | JH-DRL-135 | JH-DRL-130 |
| Al₂O₃(%); ≥ | 75 | 65 | 65 | 65 | 60 |
| Creep Rate(%); ≤ (0.2MPa×50h) | 1500℃ 0.8 | 1450℃ 0.8 | 1400℃ 0.8 | 1350℃ 0.8 | 1300℃ 0.8 |
| Permanent Linear Change on Heating(%) | 1550℃×2h -0.2~0.1 | 1550℃×2h -0.2~0.1 | 1450℃×2h -0.2~0.1 | 1450℃×2h -0.4~0.1 | 1450℃×2h -0.4~0.1 |
| Bulk Density(g/cm³) | 2.65~2.85 | 2.50~2.70 | 2.40~2.60 | 2.35~2.55 | 2.30~2.50 |
| Apparent Porosity(%); ≤ | 21(23) | 21(23) | 22 (24) | 22 (24) | 22 (24) |
| Cold Crushing Strength (MPa); ≥ | 60 (55) | 60 (55) | 55 (50) | 55 (50) | 55 (50) |
Note: The values in parentheses are for shaped bricks
Packaging Method: Wooden Pallet
Precautions: Waterproof and Shockproof
| Item | JH-RL-65 | JH-RL-55 | JH-RL-48 |
| Al₂O₃(%);≥ | 65 | 55 | 48 |
| 0.2MPa load softening start temperature;≥ | 1500 | 1470 | 1420 |
| Permanent linear change on heating(%) | 1500℃×2h -0.4~0.1 | 1500℃×2h -0.4~0.1 | 1450℃×2h -0.4~0.1 |
| Bulk density(g/cm³);≥ | 2.40 | 2.30 | 2.20 |
| Apparent porosity(%);≤ | 22(24) | 22(24) | 22(24) |
| Cold crushing strength(MPa);≥ | 50.0 | 45.0 | 40.0 |
Note: The values in parentheses are for shaped bricks
Packaging Method: Wooden Pallet
Precautions: Waterproof and Shockproof
