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1. (WO2018077936) A STACK OF SEPARATION DISCS

Pub. No.:    WO/2018/077936    International Application No.:    PCT/EP2017/077284
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 26 01:59:59 CEST 2017
IPC: B04B 7/14
B04B 1/08
Applicants: ALFA LAVAL CORPORATE AB
Inventors: NILSSON, Sven-Åke
THORWID, Peter
Title: A STACK OF SEPARATION DISCS
Abstract:
The present invention provides a stack (10) of separation discs (1) adapted to be comprised inside a centrifugal rotor (17) for separating a liquid comprising a plurality of axially aligned separation discs (1) having a truncated conical shape with an inner surface (2) and an outer surface (3) and a plurality of spot-formed spacing members (4) extending from a base (8) from at least one of the inner surface (2) and the outer surface (3) for providing interspaces between mutually adjacent separation discs (1) in said stack (10) of separation discs (1). The plurality of separation discs (1) having spot-formed spacing members (4) are arranged so that a majority of said spot-formed spacing members (4) of a disc (1) are displaced compared to the spot-formed spacing members (4) of an adjacent disc (1). The present invention further provides a centrifugal separator comprising such a stack (10) of separation discs (1).