blast furnace thermal storage ball

1.high strength, high abrasion resistance, 2.high thermal conductivity,capacity, 3.high thermal stability and heat endurance.     The thermal storage ceramic is specially utilized as the packing in thermal storage equipment . it is used in the air separation process and functions as a kind of heat exchange medium. it can work at temperatures ranging from0-1700.C. A qualified thermal storage ceramic ball should come with a smooth surface and should be spotless, crack free and flawless.  Product Feature With the smooth surface, thermal storage ball owns the characters of high mechanical strength, high abrasion resistance, high thermal conductivity & thermal capacity, high thermal stability, and excellent heat endurance. There are three types, including ceramic ball, porous ceramic column and porous ceramic ball.It's specially applied as thermal storage packing in heat accumulator of air separation  equipments, heating stove of blast furnace gas in the steel industry.During the process of steel rolling, if thermal storage ball is installed, it can preheat both air and gas so as to ensure burning temperature achieve the requirement quickly required by heating of billet during steel rolling. Principal Technological Indexes

item	Using for Gas separation	Using for heating furnace
Al2O3         %	20-30	45-75
SiO2±Al2O %	≥92	≥95
Fe2O3         %	≤1	≤1.5
size  mm	10-12/12-14	16-18/20-25
Thermal capacity J/kg.k	≥836	≥1000
Specific heat conductance  w/mk	2.6-2.9
Applicable temperature °C	20~800	20~1000
Fire resistance     °C	1550	1750
Compression resistance strength  N	800-1200	1800-3200
Bulk density      kg/m3	1300-1400	1500-1600

blast furnace thermal storage ball