Batch centrifuge with scraper knife mounted on inlet tube

US4220538A · kind A · utility

Assignee

• KraussMaffei GmbH · DE

Inventors

• Kurt Zeppenfeld
• Klaus Koch · Geislingen, DE

Key dates

• Filing date: Nov 20, 1978
• Grant date: Sep 2, 1980
• Expiry date: Nov 20, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B11/08
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A centrifuge has a basket centered on and rotatable in either rotational sense about an upright basket axis. An upright and rigid support tube movable axially in the basket and pivotal between a pair of end positions carries at its lower end a fill tube from which a suspension to be filtered may be sprayed onto the inner wall of a basket. This support tube also carries at its lower end extending diametrically opposite the fill tube an arm carrying at its outer end an unloading knife. In one end position the fill tube is directed at the inner wall of the basket, so that a suspension can be sprayed on the inner walls of the basket. In the other end position the fill tube is turned away from the inner wall of the basket and the knife is juxtaposed therewith while the basket is reverse-rotated to strip off and inwardly deflect the filter cake thereon.