Common Refractory Materials In The Cement Industry
●Alkaline refractories: Magnesia chrome brick; Magnesia alumina spinel brick; Dolomite brick.
●High-alumina refractories: High alumina bricks; Corundum castable.
●Silica refractories: Alkali resistant brick.
●Insulating refractory materials: Lightweight insulating bricks; Insulating castables.
●Amorphous refractory materials: Refractory castables; Gunning refractory mix.
Typical Applications Of Refractory Materials In Cement Production
| Equipment/parts | Working environment | Commonly used refractory materials |
| Rotary kiln firing zone | High temperature (1450–1600°C), clinker melting | Magnesium-aluminum spinel bricks, dolomite bricks |
| Rotary kiln transition zone | Large temperature fluctuations, high thermal stress | Anti-stripping high-aluminum bricks, spinel castables |
| Decomposition furnace/preheater | Medium temperature (800–1200°C), high alkaline environment | Alkali-resistant bricks, high-aluminum castables |
| Kiln mouth/coal injection pipe | High temperature erosion, mechanical stress | Corundum castables, silicon carbide composite castables |
| Grate cooler | Clinker cooling, high wear | High-strength wear-resistant castables, silicon carbide bricks |
| Third air duct | Dust-laden airflow, alkali erosion | Alkali-resistant castables, high-aluminum refractory materials |
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