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:
Aug. 29, 1989
Filed:
Oct. 13, 1988
Manfred Durr, Oelde, DE;
Georg Unland, Ennigerloh, DE;
Gunter Driemeier, Lienen, DE;
Karl Krutzner, Beckum, DE;
Heinz-Herbert Schmits, Rheda-Wiedenbruck, DE;
Michael von Seebach, Ennigerloh, DE;
Otto Heinemann, Ennigerloh, DE;
Wolfgang Rother, Oelde, DE;
Dieter Dreyer, Ennigerloh, DE;
Krupp Polysius AG, , DE;
Abstract
The invention relates to apparatus and to a method for the heat treatment of fine-grained material using a multi-stage cyclone preheater and a combustion chamber supplied with tertiary air from the cooler, in which the branched part of the tertiary air pipe extends upwards and the material discharged from the second-lowest stage of the cyclone preheater is introduced into one branch pipe at a point which lies lower than the point at which this branch pipe is connected to the combustion chamber. In this way good dispersal of the material which is delivered pneumatically to the combusion chamber and excellent combustion conditions are achieved at the same time as a considerable reduction in the overall height of the entire cyclone preheater.