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:
Apr. 19, 1983
Filed:
Oct. 23, 1980
Applicant:
Inventors:
Diethard Habermehl, Essen, DE;
Wolfgang Rohde, Essen, DE;
Werner Kucharzyk, Essen, DE;
Werner Siebert, Essen, DE;
Assignees:
Bergwerksverband GmbH, Essen, DE;
Didier Engineerin GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B / ; F26B / ;
U.S. Cl.
CPC ...
34 10 ; 34 5 / ; 432 15 ; 432 58 ; 209143 ;
Abstract
A method and an apparatus are disclosed for drying and preheating coking coal particles of mixed sizes in a flight stream tube. A stream of hot gas in which different-size particle fractions are entrained, is advanced through the tube. At one or more locations it is split up into two flows, one containing the smaller fractions and the other containing the coarser fractions. The coarser fractions are slowed and readmitted into the flow having the smaller fractions, counter to the direction of advancement of this flow.