Description
Magnesia iron spinel brick is a remarkable product designed for the “chrome-free” firing zone of cement kilns. It offers outstanding kiln skin adhesion, thermal shock stability, resistance to cement clinker erosion, and a low thermal expansion rate. Its application in the cement kiln firing zone yields excellent results.
Key Features of Magnesium Iron Spinel Refractory Brick:
- High compressive strength.
- Good thermal shock stability.
- Flexibility.
- High softening temperature under load.
- Easily adheres kiln skin.
Application Sites for Refractory Magnesium Iron Spinel Brick: Our Magnesium iron spinel refractory brick is suitable for various cement rotary kiln zones, including the firing zone, transition zone, and cooling zone. Choosing high-quality refractory materials, securing the kiln skin, and using appropriate fuels to slow down chemical erosion are pivotal factors in extending the rotary kiln’s service life. Our magnesia-iron spinel brick stands as your optimal choice for achieving these objectives.
| Item | Index | |
| Magnesia iron Spinel Brick | High toughness Magnesium Iron Spinel brick | |
| MgO % | ≥85 | ≥88 |
| Fe2O3 % | 5~7.5 | 5~6 |
| Al2O3 % | 3~5 | 4~7 |
| Bulk density g/cm3 | ≥3 | ≥2.9 |
| Apparent porosity % | ≤17 | ≤16 |
| Cold Crushing Strength MPa | ≥45 | ≥55 |
| Thermal shock resistance cycle 1100℃water cooling | ≥6 | ≥8 |
| 0.2MPa Refractoriness under load ℃ | ≥1600 | ≥1650 |
| Thermal expansion rate % 1400℃ | ≤1.6 | ≤1.7 |
| Thermal conductivity W/(m·K) 350±25℃ | ≤2.6 | ≤2.6 |
