Clay bricks for hot blast stoves
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Product Introduction
Clay bricks for hot blast stoves are mainly used in hot blast stoves, regenerators and partition walls. These bricks are required to have the characteristics of good thermal shock resistance, high load softening temperature, and low creep.
Hot blast furnace clay bricks are usually made into honeycomb, plum, and wavy shapes to increase the heat exchange area.
Under the action of long-term high temperature, the clay brick for hot blast furnace has small creep, good thermal shock resistance, and high load softening temperature.
Clay bricks for hot blast stoves are generally used in the lower part of the hot blast furnace, masonry hot blast furnace walls, whirlpool bricks and lattice bricks, that is, the low temperature area and medium temperature area of the hot blast stove.
In summary, clay bricks for hot blast stoves play an important role in the construction of hot blast stoves because of their good thermal shock resistance and high temperature stability.
| Projects | Physical and chemical indicators | |||
| RN-42 | RN-40 | RN-36 | ||
| （Al2O3）/% | ≥ | 42 | 40 | 36 |
| Bulk density/(g/cm3) | 2.00~2.20 | 2.00~2.20 | 2.00~2.20 | |
| Apparent porosity/% | ≤ | 22 | 22 | 22 |
| Compressive strength at room temperature/Mpa | ≥ | 35 | 30 | 25 |
| 0.2Mpa load softening starting temperature/°C | ≥ | 1410 | 1350 | 1300 |
| Heating Permanent Line Change/% | 1400℃×2h | -0.4~0 | - | - |
| 1350℃×2h | - | -0.5~0 | -0.5~0 | |
Key words:
Clay bricks for hot blast stoves
Clay bricks
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