Centrifugal separator

US5362292A · kind A · utility

Assignee

• Alfa Laval Separation A/S · SE

Inventors

• Leonard Borgstrom · Tyresö, SE
• Claes-Goran Carlsson · Höör, SE
• Peter Franzen · Tullinge, SE
• Claes Inge · Hagfors, SE
• Torgny Lagerstedt · Stockholm, SE
• Hans Moberg · Stockholm, SE
• Olle Nåbo · Tullinge, SE

Key dates

• Filing date: Mar 4, 1994
• Grant date: Nov 8, 1994
• Expiry date: Mar 4, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B11/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A centrifugal separator of the type including a rotor, which is supported by a driving shaft and which forms a separation chamber and an inlet chamber. The inlet chamber being delimited by a dividing wall. An inlet tube extends axially through the dividing wall at one axial end of the inlet chamber at which the inlet channel in the tube opens. In the inlet chamber there is arranged a number of separating discs. A central part of the inlet chamber is connected to an outside space through an evacuating channel. In order to efficiently and gently separate a supplied liquid mixture without demanding a large space in the centrifugal separator, the inlet device is provided with a baffle which, between the opening of the inlet channel and the discs, extends from the rotational axis of the rotor and delimits a liquid filled inlet space. The liquid in the inlet space flowing during operation from the inlet channel radially outwards into the liquid body.