发明名称 |
Cement calcination in a fluidised bed - with outlet at the bottom and air cooled cooling zone |
摘要 |
<p>Cement is produced by burning raw material in a fluidised bed. The preheated raw material, fuel, preheated air and a recycled part of the burnt material are fed into the bed and the material leaving the bed is cooled in a stream of cold air. Specifically, the preheated raw material is precalcined in a calcination zone with added fuel to remove >=40 pref. 80-95% of the anions. The burnt material is discharged immediately from beneath and part from the sides of the vessel. A uniform end product is obtained with low energy consumption. The cement clinker produced has a low alkali content.</p> |
申请公布号 |
DE2822395(A1) |
申请公布日期 |
1979.12.06 |
申请号 |
DE19782822395 |
申请日期 |
1978.05.23 |
申请人 |
POLYSIUS AG |
发明人 |
KRETZER,HORST,ING.;WEBER,RUDOLF |
分类号 |
B01J8/24;C04B7/44;(IPC1-7):C04B7/44 |
主分类号 |
B01J8/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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