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:
May. 05, 1981
Filed:
Feb. 05, 1980
Applicant:
Inventors:
Kunibert Brachthauser, Bergisch-Gladbach, DE;
Horst Herchenbach, Troisdorf, DE;
Assignee:
Klockner-Humboldt-Deutz AG, , DE;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106100 ;
Abstract
A method for the thermal treatment of finely divided material in the calcination of cement in which finely divided material is fed in suspension into a first combustion zone, and a relatively rapidly oxidizing fuel is fed into the first combustion zone to thereby oxidize the fuel and transfer its heat to the finely divided material. The at least partially deacidified finely divided material is then fed from the first combustion zone into a second combustion zone where it is contacted with relatively slowly oxidizing fuel. Subsequently, the material treated in the second combustion zone is sintered in a sintering zone.