Separation disc for a centrifugal separator

US11660607B2 · kind B2 · utility

Assignee

• ALFA LAVAL CORPORATE AB · SE

Inventors

• Klas HILDING · Älta, SE
• Sven-Åke Nilsson · Gnesta, SE
• Peter Thorwid · Sundbyberg, SE

Key dates

• Filing date: Apr 30, 2018
• Grant date: May 30, 2023
• Expiry date: Jul 21, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B7/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A separation disc for a centrifugal separator is adapted to be included in a stack of separation discs inside a centrifugal rotor for separating a fluid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spacing members extending from at least one of the inner surface and the outer surface. The spot-formed spacing members are for providing interspaces between mutually adjacent separation discs in a stack of separation discs. The separation disc further includes at least one elongated rib extending from the inner surface to a height (h) that is less than the height (H) to which the plurality of spacing members extend. Further, at least one elongated rib extends from first position on the inner surface to a second position on the inner surface. The second position is at a radial distance that is larger than the radial distance of the first position, and the relation between the height of the elongated ribs (h) and the spacing members (H) are h/H>0.7.