Alkali-resistant bricks for cement kiln
Alkali-resistant bricks for cement kiln are made of chamotte,silica and low alumina refractory clay.They have merits like excellent resistance to alkali,good permeability.They are widely used in the preheater of cement kiln,decomposing furnace,teritary air tubes and so on.
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Description
Item | Unit | Index
|
Al2O3 | % | 25-30 |
SiO2 | % | 60-70 |
Fe2O3 ≤ | % | 2.0 |
Apparent porosity≤ | % | 25 |
Pressure resistance at normal temp.≥ | Mpa | 20 |
Reheating linear change (1350℃x2h) | % | +0.1~-0.1 |
Thermal stability(1100℃ water cooling)≥ | Times | 10 |
Alkali resistivity(1100℃x24h) | Qualified |