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Magnesium iron aluminum spinel bricks kiln refractory bricks /used in cement rotary kiln firing zone/resistance erosion
Product description:
It is a refractory made of iron - aluminum spinel instead of magnesia - chrome brick.The chemical formula of fe-al spinel (FA) is Fe2O3·AL2O3, in which FeO accounts for 41.34% and AL2O3 accounts for 58.66%. It is a mineral of equiaxial system, with a hardness of 7.5 and a relative density of 4.39.
Category of Refractory Brick/Fire Brick:
Magnesium iron aluminum spinel
Features:
Magnesia aluminum spinel brick has high strength, corrosion resistance, excellent kiln skin and thermal shock resistance;It is used in cement rotary kiln.
Physical and chemical indicators:
|
Name | Magnesia-aluminum spinel brick | |
|---|---|---|
| Brand | XY-MTL-80 | XY-MTL-85 |
| MgO/%,≥ | 80 | 85 |
| CaO/%,≤ | 1.5 | 1.5 |
| Fe2O3/%,≤ | 3-5 | 3-5 |
| SiO2/%,≤ | 1.2 | 1.0 |
| AL2O3/% | 8-10 | 3-5 |
| Apparent porosity,≤ | 18 | 17 |
| Bulk density/g﹒cm-3,≥ | 2.95 | 2.95 |
| Crushing strength/ MPa,≥ | 55 | 50 |
| Refractoriness under load,0.2MPa,℃(≥) | 1600 | 1610 |
| 1100℃ Cair cooling,blowing Themal shock resistanc | 8 | 8 |
Accord
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