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:
Oct. 07, 1980
Filed:
Aug. 11, 1978
Applicant:
Inventors:
Kunibert Brachthauser, Bergisch-Gladbach, DE;
Horst Herchenbach, Troisdorf, DE;
Assignee:
Klockner-Humboldt-Wedag AG, , DE;
Primary Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
432106 ; 432 58 ;
Abstract
An apparatus for the thermal treatment of fine-grained material such as for the calcination of cement including a suspension type gas heat exchanger having a plurality of stages of progressively higher temperatures in the direction of material flow. A conduit connects the hottest stage of the heat exchanger with a rotary kiln. A combustion zone is provided within the conduit and rapidly oxidizing fuel components are introduced into this combustion zone. Slowly oxidizing fuel components are introduced into the rotary kiln in a second combustion zone.