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. 19, 1988
Filed:
Jan. 07, 1987
Applicant:
Inventors:
Manfred Durr, Oelde, DE;
Karl Krutzner, Beckum, DE;
Heinz-Werner Thiemeyer, Ennigerloh, DE;
Jurgen Wurr, Ennigerloh, DE;
Peter Tiggesbaumker, Oelde, DE;
Wolfgang Rother, Oelde, DE;
Assignee:
Krupp Polysius AG, Beckum, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
432106 ; 432 58 ; 432 14 ;
Abstract
Apparatus for the heat treatment of fine material comprises a multi-stage cyclone preheater, a rotary kiln and a calciner supplied with tertiary air from a cooler for precalcination of the preheated fine material. The tertiary air pipe is narrowed at the point where it joins into the calciner. In this way an intensification of the mixing together of material, fuel and gas is achieved as well as an improved combustion, particularly fuels which are slow to react.