Low Creep Andalusite Materials High Alumina Bricks for Hot Blast Stove
Characteristics:
- Al2O3 content ≥50%.
- High refractoriness under load.
- The RUL is higher than fireclay brick as the high content of Al2O3
- Excellent slag resistance
Application:
Mainly used for the building linings of hot blast stove, blast furnace, coke oven, rotary kilns
Technical Index:
| Item | High Alumina Brick |
| DRL-155 | DRL-150 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | DRL-127 |
| Al2O3,% ≥ | 75 | 75 | 65 | 65 | 65 | 60 | 50 |
| Apparent Porosity,% ≤ | 20 | 21 | 21 | 22 | 22 | 22 | 23 |
| Bulk Density, g/cm3 | 2.65-2.85 | 2.65-2.85 | 2.50-2.70 | 2.40-2.60 | 2.35-2.30 | 2.30-2.50 | 2.30-2.50 |
| Compress Strength, Mpa ≥ | 60 | 60 | 60 | 55 | 55 | 55 | 50 |
Creep Rate, %
(0.2Mpa,50h) ≤ | 1550℃
0.8 | 1500℃
0.8 | 1450℃
0.8 | 1400℃
0.8 | 1350℃
0.8 | 1300℃
0.8 | 1270℃
0.8 |
| Permanent Linear Change % | 1550℃,2h | 0.1-0.2 | 0.1-0.2 | 0.1-0.2 | -- | -- | -- | -- |
| 1450℃,2h | -- | -- | -- | 0.1-0.2 | 0.1-0.4 | 0.1-0.4 | 0.1-0.4 |
1. Raw material to factory→checkout→burdening→stirring→mixing→taking out the raw material,
2) Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packaging and Shipment.
2. Quality Assurance
1) Going out the furnace→checkout→packing→qualified product→putting in storage→sale,
2)The process from raw to product are strictly tested by equipment.
