Centrifugal separator having a rotor body with a movable wall

US5186708A · kind A · utility

Assignee

• Alfa-Lavel Separation AB · SE

Inventors

• Klaus Stroucken · Åkersberga, SE
• Rolf Ridderstrale · Stockholm, SE

Key dates

• Filing date: Jun 28, 1991
• Grant date: Feb 16, 1993
• Expiry date: Jun 28, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B11/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The rotor of a centrifugal separator includes two axially separated end walls and one surrounding wall situated between the end walls. The end walls and a stack of separation discs within the rotor are maintained axially together by a central fastener. The surrounding wall, which is separate from the two end walls, is movable axially during rotor operation relative to at least one of the end walls. The surrounding wall has an inner diameter at the areas where it seals with the ends walls that is smaller than the portions between those sealing areas.