Special shaped high alumina checker brick introduction
Special shaped high alumina cheacker brick is widely recognized and accepted by the world of ironmaking circles at present, a heat carrying heat storage body with strong heat exchange capacity, large heat storage area, smooth ventilation, low resistance and many other superior thermal characteristics.
Special shaped high alumina checker brick features
The special shaped high alumina checker bricks are mainly used in the regenerator chamber of hot blast stove. The high alumina checker bricks with lattice holes in certain structure are arranged in order, so that the high alumina checker bricks have the characteristics of good volume stability, high density and low porosity, and excellent creep performance under high temperature load.
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Special shaped high alumina checker brick index
| Item | RL-65 | RL-55 | RL-48 |
| Al2O3, %, ≥ | 65 | 55 | 48 |
| Refractoriness, ℃ , ≥ | 1780 | 1760 | 1740 |
| Refractoriness Under Load of 0.2MPa, ℃ , ≥ | 1500 | 1470 | 1420 |
| Linear Change after Reheating, %, 1500℃x2h | 0.1~-0.4 | 0.1~-0.4 | 0.1~-0.4 |
| Apparent Porosity, %, ≤ | 23 | 22 | 22 |
| Cold Crushing Strength, MPa, ≥ | 50 | 45 | 40 |
Special shaped high alumina checker brick application
Special shaped high alumina checker brick is a kind of heat transfer medium, which is mainly used in the middle and upper part of regenerator chamber of hot blast furnace. In the process of heating cold air into hot air, it plays an extremely important role.
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