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US 10,457,599 B2Granted
Method and apparatus for producing cement clinker
AssigneeSüDbayerisches Portland-Zementwerk Gebr. WiesböCk & Co. GmbH
InventorHelmut Leibinger
Life of this patent
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Abstract
In methods of and/or plants for manufacturing cement clinker, the amount of chloride bypass exhaust gas 79 can be substantially decreased, when using previously cooled chloride bypass exhaust gas 81 and/or cooled kiln exhaust gas as coolant for the chloride bypass exhaust gas 39 prior to deducting the chloride bypass exhaust gas 39.
Claims10
Method for chloride bypass gas treatment, comprising:
- providing a chloride bypass gas flow by drawing at least a fraction of a main exhaust gas flow from a kiln,
- a first cooling step of cooling the chloride bypass gas flow by mixing it with a cooling gas to form a mixed chloride bypass gas flow,
- dedusting the mixed chloride bypass gas flow, and
- a second cooling step of cooling the dedusted-and-mixed chloride bypass gas flow by bringing the dedusted mixed chloride bypass gas flow into thermal communication with at least one heat carrier fluid which is heated as a result of the thermal communication with the dedusted mixed chloride bypass gas flow,
- wherein at least a part of the cooled dedusted-and-mixed chloride bypass gas flow obtained after the second cooling step is used as cooling gas in the first cooling step.
2 more elements
Dependencies are inferred from the claim text.