The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 1981
Filed:
Sep. 04, 1979
Herbert Deussner, Bergisch Gladbach, DE;
Klockner-Humboldt-Deutz AG, , DE;
Abstract
Apparatus for the production of cement from raw material to the clinker stage is disclosed. The raw material is first heated in a heat exchanger with the heat energy being supplied by the waste heat from subsequent stages of this process. The heated raw material is then passed into a heat exchanger to be partially calcined. Calcination is completed in another heat exchanger, with the waste heat used in the final calcination being supplemented with combustion of a fuel. The calcined material is then passed to a kiln for conversion to clinker, from which the material is then cooled, the warmed cooling air to be used partially for combustion in the kiln and partially during calcination.