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.


Specification Of Heat Storage Ceramic Balls

Heat storage ceramic balls are specialized ceramic media designed for thermal energy storage and heat exchange in high-temperature industrial processes. Made from materials such as alumina (Al₂O₃)mullite (3Al₂O₃·2SiO₂), or silicon carbide (SiC), these balls are widely used in applications like regenerative thermal oxidizers (RTOs)heat recovery systems, and industrial furnaces. Their high thermal stability, durability, and ability to store and release heat efficiently make them ideal for energy-saving and pollution control systems.


Key Features of Heat Storage Ceramic Balls

  1. High Thermal Stability:

    • Can withstand extreme temperatures (up to 1600°C or higher), making them suitable for high-temperature applications.

  2. Excellent Heat Storage Capacity:

    • Efficiently stores and releases thermal energy, improving energy efficiency in industrial processes.

  3. Chemical Resistance:

    • Resistant to corrosion and chemical attack from acids, alkalis, and organic solvents.

  4. Low Thermal Expansion:

    • Minimal expansion under high temperatures reduces the risk of cracking or damage.

  5. Mechanical Strength:

    • Durable and resistant to breakage, even under high-pressure conditions.

  6. Uniform Size and Shape:

    • Precise dimensions ensure consistent performance and optimal heat transfer.


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