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:
Jun. 03, 1980
Filed:
Aug. 02, 1978
Applicant:
Inventor:
Heinz Houben, Monchen-Gladbach, DE;
Assignee:
Maschinenfabrik Buckau R. Wolf Aktiengesellschaft, Grevenbroich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 / ; 210 75 ; 210 78 ;
Abstract
A method for dewatering froth fines obtained during the separation of coal, in which a discontinuously operating sieve scraping centrifuge is filled with the froth fines, the mixture is centrifuged at a low rotational speed to remove a major portion of the liquid and to deposit a layer of solid material which acts as a filter aid, and the remaining mixture is then centrifuged at a high rotational speed. The first run-off is reintroduced into the centrifuge to reduce its high solids content.