Thermal storage porcelain ball with high strength, wear resistance; High thermal conductivity and heat capacity, high heat storage efficiency; Good thermal stab...
Porcelain ball
Thermal storage porcelain ball with high strength, wear resistance; High thermal conductivity and heat capacity, high heat storage efficiency; Good thermal stability, temperature change is not easy to crack and other advantages. It is especially suitable for regenerator of air separation equipment and blast furnace gas heating furnace of iron and steel plant as heat storage filler. Through double preheating of gas and air, the combustion temperature can quickly reach the requirement of heating billet for steel rolling.
echnical index | air separation thermal storage ceramic ball | Regenerative ceramic ball for heating furnace | |
Chemical composition | Al2O3 % | 20-30 | 60-65 |
Al2O3+SiO2 % | ≥90 | ≥90 | |
Fe2O3 % | ≤1 | ≤1.5 | |
Size mm | Φ10-12 Φ12-14 | Φ16-18 Φ20-25 | |
Heat capacity J/kg.k | ≥836 | ≥1000 | |
thermal conductivity w/m.k | 2.6-2.9 | - | |
Resistance to sudden temperature difference ℃ | 800 | 1000 | |
Fire resistance ℃ | 1550 | 1750 | |
