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:
Jan. 15, 1980
Filed:
Mar. 21, 1978
Applicant:
Inventor:
Herbert Deussner, Bergisch Gladbach, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106100 ;
Abstract
A method for the production of cement from raw material to the clinker stage. The raw material is first heated using waste heat from subsequent stages of this process. The heated raw material is then passed into a precalcining stage in which the raw material is partially calcined. The calcination is then completed in an after-calcining stage wherein heat is provided by the combustion of a fuel. The material is next passed to a kiln for conversion to clinker, and is then cooled in a cooling stage. Air for the combustion and the after-calcining stage and in the kiln is supplied from the cooling stage.