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Product category|Spinel Fire Bricks
Refractoriness under load: ≥1700℃
Thermal Conductivity: ≥100times
Bulk density: ≥2.95 g/cm3
Apparent porosity: ≤19%
Online Time: 7*24 hours
Magnesia iron spinel brick is an excellent product of “chrome free” cement kiln firing zone. When the temperature fluctuates, the expansion and contraction of magnesia alumina spinel brick are relatively uniform, the thermal shock stability is good, and the load softening temperature and strength are better than magnesia brick.
Alumina magnesia spinel bricks are mainly made from mixture of industrial alumina and high quality light sintered MgO powder. Sintered at high temperature tunnel kiln, magnesia alumina spinel brick has the characteristics of high bulk density, perfect crystal phase, and great mechanical strength. Moreover, magnesia alumina spinel refractory bricks exhibit great corrosion resistance, slag resistance, superior thermal shock resistance during test application.
Good thermal stability
Good anti-peeling performance
Good heat resistance
Anti-quenching and emergency hot
Good corrosion resistance
The magnesia-alumina spinel brick can be used in the cement kiln, not only avoid the chrome pollution, and has good anti-stripping performance.
It can be used in refractory castables for ladles, which greatly improve the anti-erosion ability. It is widely applied to steel-making refractory material. The preparation of high quality pre-synthetic spinel provide a new material for amorphous and fixed high purity refractory.
Our Magnesium iron spinel refractory brick is suitable for all kinds of cement rotary kiln firing zone, transition zone and cooling zone. Selecting high-quality refractory materials, hanging the kiln skin, and using fuels that meet the requirements to slow down chemical erosion are the key factors to prolong the service life of the rotary kiln. Our magnesia-iron spinel brick is your best choice.
| Item | Magnesia Iron Spinel Brick |
| MgO | ≥84% |
| Al₂O₃% | 3-5% |
| Fe2O3 | 4-6% |
| Bulk density | ≥2.95 g/cm3 |
| Apparent porosity | ≤19% |
| Cold compressive strength | ≥55MPa |
| Refractoriness under load | ≥1700℃ |
| Thermal Conductivity | ≥100times |
Magnesia-aluminum spinel brick
| Item | A | B |
| MgO | ≥85% | ≥82% |
| Al₂O₃ | ≥9% | ≥9% |
| Bulk density | ≥2.95 g/cm3 | ≥2.9 g/cm3 |
| Apparent porosity | ≤18% | ≤19% |
| Cold compressive strength | ≥55MPa | ≥45MPa |
| Refractoriness under load | ≥1700℃ | ≥1700℃ |
| Thermal Conductivity | ≥100times | ≥100times |
Shengjie Refractory Material supplies high-quality castables to Shuangji company and was used for cement kiln linings, iron-making furnace linings, etc. to protect equipments and structures…
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