The clay checker brick for hot blast stove is a kind of heat transfer medium, which is mainly used in the upper part of the hot blast stove regenerator, plays a role of heat storage, plays an extremely important role in the process of heating cold air into hot air.
Features of clay checker bricks for hot blast stoves
1. good volume stability,
2. low creep under load,
3. high density,
4. low porosity.
The use of clay checker bricks for hot blast stoves: checker bricks are mainly used in hot blast stoves. When hot air is lower than 900 °C, clay bricks are generally used. When the wind temperature is higher than 900 °C, the checker bricks are made of high-alumina bricks. Stone bricks, sillimanite bricks and silica bricks.
Common clay checker brick
1 Traditional 7-hole checkered brick: aperture 43mm, heat storage area 38.1m2/m3
2 High-efficiency 7-hole lattice brick: aperture 30mm, heat storage area 47.1m2/m3
3 High-efficiency 19-hole lattice brick: aperture 30mm, heat storage area 48.6m2/m3
4 High-efficiency 31-hole lattice brick: aperture 25mm, heat storage area 58.1m2/m3
5 High-efficiency 37-hole lattice brick: 20mm aperture, heat storage area 68.7m2/m3
If you do not find the model you need, please contact us to tell the model and size you need, customization is acceptable.
Physical and chemical index:
Clay checker brick for hot blast stove
Item RN-42 RN-40 RN-36 Al2O3 % 42 40 36 Creep Rate % 0.2 0.2 0.2 Refractoriness Under Load °C 1400 1350 1300 Permanent Linear Change % 0.1-0.2 (1400°C*2h) Apparent Porosity % 20 22 22 Cold Crushing Strength MPa 35 35 25 Bulk Density g/cm3 2.3 2.15 2.1