Ceramic balls >> Heat Storage Ceramic Balls
　　Heat storage ceramis balls are characterized by its high strength, low abrasion loss, large heat capacity and thermal conductivity result in efficient heat storage performance, excellent resistance to high temperature and the thermal shock. The balls have been effectively used in recuoerator in air separation process,and also used to pre-heat the gas and the air in coal as heating furnace in iron & steel plant.
Main specification：
    heat storage ball for air separation heat storage ball for heat blast stove
Chemical composition(%) AL2O3 20-30 60-65
SIO2+AL2O3 ≥90 ≥90
Fe2O3 ≤1 ≤1.5
Size(mm) ф10-12/ф12-14 ф16-18/ф20-25
Heat capacity(J/Kg.K) ≥836 ≥1000
Thermal conductivity(.W/m.k) 2.6-2.9  
Thermal shock resistance(℃) 800 1000
Refractoriness(℃) 1550 1750
Abrasion loss(%) ≤0.1 ≤0.1
Mohs hatdness ≥6.5 ≥6.5
Compressive strength(N) 800-1200 800-3200
Bulk density(kg/m3) 1300-1400 1500-1600
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