Patent ID: 6083147
Filing Date: 2000-07-04
Classification: B04B

Abstract:
A device for discontinuous separation of solid particles from a liquid by centrifugal sedimentation thereof, comprising a vessel rotatable about a vertical axis, said vessel having an inlet for the liquid which is to be separated, a separation zone with sedimentation surface elements, upper and lower collection chambers communicating with the separation zone, an outlet for liquid which has been freed of particles in the separation zone, and an outlet which can be opened and closed, for particle sediment collected on the sedimentation surface elements, wherein the sedimentation surface elements are formed by a plurality of adjacent tubular elements having first and second ends and which are oriented axially and arranged to form a ring about the center axis of the rotatable vessel and which are open at both ends, wherein the tubular elements are arranged in two concentric annular formations which are separated from each other by a liquid-tight intermediate wall and the upper collection chamber above the tubular elements is divided into an inlet chamber portion and an outlet chamber portion, the inlet chamber portion communicating with a radially inner annular formation of the tubular elements, while the outlet chamber portion communicates with a radially outer annular formation of the tubular elements.