Magnesia alumina spinel brick
The transition zone is one of the calcining technology belts for clinker in rotary kiln, which mainly maintains a certain high temperature and sufficient residence time during the conveying of clinker. Therefore, the calcining temperature in the zone is relatively high.
Magnesia alumina spinel brick is made of high-purity magnesia and magnesia alumina spinel by high-temperature firing. It has excellent heat resistance and alkali salt corrosion resistance, and is suitable for use in the transition zone of cement kiln.
Magnesia alumina spinel brick is made of high-purity magnesia and magnesia alumina spinel by high-temperature firing. It has excellent heat resistance and alkali salt corrosion resistance, and is suitable for use in the transition zone of cement kiln.
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Description
Physical and chemical indexes of magnesia alumina spinel
| Index item | RS-МАШ-1 | RS-МАШ-2 | RS-МАШ-3 | RS-МАШ-4 | |
| Chemical composition | МgО％, > | 88 | 86 | 84 | 82 |
| Аl2О3％, > | 6 | 9 | 9 | 8 | |
| SiО2％, < | 0,5 | 0,5 | 0,8 | 1,0 | |
| Volume density，g / см3 | 2.9 | 2.9 | 2.85 | 2.8 | |
| Apparentporosity，%，＜ | 18 | 18 | 19 | 20 | |
| Compression strength;，N/мм², ＞ | 60 | 60 | 50 | 45 | |
| Initial temperature，℃，＞ | 1700 | 1700 | 1680 | 1650 | |
| Heat stability，＞， frequency | 10 | 10 | 10 | 10 | |
| Thermalcoefficient（1000℃）W/m.K | 2.9 | 2.9 | 2.8 | 2.7 | |
| Use | Transition zone of rotary furnace | ||||
Keywords:
spinel
rs-
10
2.9
18
1700
chemical
0
5
60
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