Heat Storage & Thermal Storage Alumina Ceramic Balls for Industrial Furnaces
Heat Storage & Thermal Storage Alumina Ceramic Balls for Industrial Furnaces
Heat storage ceramic ball is made of industrial alumina and refractory kaolin as the main raw materials. It is scientifically formulated, shaped and calcined at high temperature. It has good properties:
1) High mechanical strength and long service life;
2) Good chemical stability, no chemical reaction with materials;
3) Good high temperature resistance, the highest heat resistance temperature can reach 1900℃.
|
Item
|
Cool storage ball
|
Heat storage ball
|
|
Al₂O₃ (%)
|
20-30
|
≥65
|
|
SiO₃+Al₂O₃(%)
|
≥90
|
|
|
Fe₂O₃(%)
|
≤1
|
≤1.6
|
|
Size(mm)
|
10-20/20-40
|
16-18/20-25
|
|
Heat capacity(J/kg.k)
|
≥836
|
≥1000
|
|
Thermal conductivity(w/m.k)
|
2.6-2.9
|
2-4
|
|
Thermal shock resistance(℃)
|
800
|
1000
|
|
Refractoriness(℃)
|
1550
|
1750
|
|
Abrasionloss(%)
|
≤0.1
|
|
|
Mohs‘ hardness(scal)
|
≥6.5
|
|
|
Crushing strength(N)
|
800-6000
|
1800-3800
|
|
Bulk density(kg/m3)
|
1300-1400
|
1500-1600
|
1) It is especially suitable for high and low temperature shift furnaces, reformers, hydroconverters, desulfurization tanks and methanation furnaces in chemical fertilizer plants, and plays the role of dispersing gas and liquid, and supporting, covering and protecting catalysts.
2) It can also be used in hot blast furnaces and heating conversion equipment in the steel industry.
