Centrifugal separator

US4721505A · kind A · utility

Assignee

• Alfa Laval Separation A/S · SE

Inventors

• Claes Inge · Hagfors, SE
• Torgny Lagerstedt · Stockholm, SE
• Leonard Borgstroem · Stuvsta-Snättringe, SE
• Claes-Goeran Carlsson · Tullinge, SE
• Sven-Olof Naebo · Österbymo, SE
• Hans Moberg · Stockholm, SE
• Peter Franzen · Tullinge, SE

Key dates

• Filing date: Oct 23, 1986
• Grant date: Jan 26, 1988
• Expiry date: Oct 23, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S494/90
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a centrifuge having a rotor, an inlet structure has a stack of annular discs and a conduit supplying liquid to a receiving chamber formed centrally in the disc stack. The liquid mixture to be separated is caused to flow in thin layers in the passages between the discs, and by friction with the discs is accelerated to the rotational speed of the rotor. Liquid is supplied to the receiving chamber in such a way that a continuous liquid phase is maintained between the mixture in the supply conduit and in the receiving chamber.