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. 27, 1979
Filed:
Feb. 14, 1978
Leonhard Spiewok, Wallisellen, CH;
Escher Wyss Limited, Zurich, CH;
Abstract
In a peeling centrifuge comprising a rotatable centrifuging drum which is surrounded by a stationary filtrate collection chamber having an outlet, and wherein the drum perforations communicate directly with that chamber, regeneration of the filter bed is effected while the drum rotates by throttling said outlet and introducing liquid to the chamber, so that liquid accumulates in the chamber and penetrates, at any instant, at least a portion of the filter bed. In one embodiment, wherein the drum axis is horizontal, only a sector of the bed in the lower region of the drum is penetrated at any time, and regeneration of the entire bed is accomplished sequentially as the drum rotates. In other embodiments, the chamber is allowed to fill with regenerating liquid to such extent that the entire bed is penetrated simultaneously. The regeneration technique may be carried out either in the terminal phase of a centrifuging operation, or after completion of centrifuging and peeling of the accumulated solids cake.