Heat storage ceramic ball and thermal storage alumina beads for accumulator

Heat storage ceramic ball has the advantages of surface smooth, corrosion resistance, high strength, low abrasion loss, large heat capacity and thermal conductivity, high heat storage efficiency, good thermal stability, excellent resistance to high temperature and thermal shock.
Heat storage ceramic ball have been effectively used in regenerator in air separation process, and also used to pre-heat the gas and the air in coal gas heating furnace in iron & steel plant.

Main specifications: Φ16mm, Φ18mm, Φ20mm, Φ25mm.
Material: High aluminum and corundum mullite.

Typical chemical compositions:

Performance/Type

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

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