Description
Brief Introduction
Checker Brick is a kind of heat-transfer medium, which is mainly used for the middle-upper part of the regenerative chamber in a hot blast stove for thermal storage in the burning period.
Technical Data
| High Alumina Checker Firebrick Physical and Chemical Index: | ||||||
| Item | Properties | |||||
| RW-80 | RW-75 | RW-65 | RW-55 | RW-48 | ||
| Al2O3 (%) | 80 | ≥75 | ≥65 | ≥55 | ≥48 | |
| Refractoriness (°C ) | ≥1790 | ≥1790 | ≥1790 | ≥1770 | ≥1750 | |
| Bulk density (g/cm3) | 2.65 | 2.5 | 2.45 | 2.4 | 2.3 | |
| Softening temperature under load (°C ) | 1530 | ≥1520 | ≥1500 | ≥1470 | ≥1420 | |
| ReheatingLinear Change Rate (%) | 1500°CX2H | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| 1450°CX2H | -0.4 | -0.4 | -0.4 | -0.4 | -0.4 | |
| Apparent porosity (%) | 22 | ≤23 | ≤23 | ≤22 | ≤22 | |
| Cold crushing strength (Mpa) | 55 | ≥50 | ≥45 | ≥40 | ≥35 | |
| Application | steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace, blast furnace, and reverberatory furnace. | |||||
Application
1. Cement kiln,
2. Iron-making furnaces,
3. Steel furnaces,
4. Glass kiln,
5. Ceramic tunnel kiln
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