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Specifications

Alumina Ceramic Ball
 
Shape: Ball
Material: Alumina Ceramic
Size: 3~75mm or as customer's requirement
 
Features:
1. Definition:
Heat storage balls is also called ball shape heat storage products
2. Highlight:
1)Fine thermal shock stabilities.
2)Strong oxidation and slag resistance.
3)Large heat storage volume.
4)High strength
5)Easy to change and clean.
 
Introduction:
Alumina ceramic ball is widely used as the covering or supporting materials of the catalyst in the reactors and the packing in the columns in such varied areas, for example, petroleum, chemical industry, chemical fertilizer, natural gas, and environmental protection etc. There are lots of merits for it, for instance, the stronger resistance to high temperature and high pressure, lower ratio of the moisture absorbing, more stable chemical properties, and so on. It is capable of enduring the corrosion of acid, alkali, and organic solvent. In addition, it can also bear the rapid transitions of temperature during the operation. In fact, its principal functions are to accelerate the distribution of gas or liquid, and support or protect the active catalyst, which especially has the relevantly lower mechanical strength.
Application:
Mainly used in heat storage balls firing systems of gas or non-gas fuel industry furnaces.

Specification:

Properties/Brand

JB-0.6

JB-0.8

MJ-1.0

MJ-1.5

Bulk Density   g/cm 3

 0.6

 0.8

 1.0

 1.5

Cold Compressive Strength≥MPa

 2.7

 4.5

 8.5

 14

Reheat Linear Change  °C×12h

 1150

 1200

 1300

 1350

Reheat Linear Change  Value

 1150

 1200

 1300

 1350

Thermal Conductivity 350±25°Cw/m·k

 0.20

 0.26

 0.38

 0.56

0.2 Mpa Refractoriness Under Load °C

 ---

 1310

 1320

 1336

       Al2 O3        %        

 40

 45

 50

 54

       Fe2 O3      %

 1.5

 1.5

 1.2

 1.2

Thermal Shock Resistance 1000°C Air-cool Times

 ---

 20

 23

 25

Highest working temperature °C

 1150

 1200

 1250

 1300