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:
Mar. 28, 1989
Filed:
Jan. 19, 1988
Applicant:
Inventors:
Georg Unland, Ennigerloh, DE;
Gunter Driemeier, Lienen, DE;
Assignee:
Krupp Polysius AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
432106 ; 432 78 ; 432 14 ;
Abstract
The invention relates to apparatus for the heat treatment of fine-grained material having a rotary drum furnace, a preheater, a cooler, and a combustion chamber for precalcination of the material. Exhaust air from the cooler is delivered on the one hand to the combustion chamber and on the other hand via two pipes directly to the furnace exhaust gas pipe, and connections for the supply of fuel and preheated material are provided in these latter pipes shortly upstream from the point at which they open into the furnace exhaust gas pipe.