Patent ID: 6248053
Filing Date: 2001-06-19
Classification: B04B

Abstract:
A device for discontinuous separation of solid particles from a liquid-particle suspension by centrifugal sedimentation thereof, comprising:a vessel rotatable about a central axis, the vessel having:a receiving chamber having an inlet for receiving a flow of a liquid-particle suspension,a discharge chamber having an outlet for discharging a flow of a treated liquid-particle suspension,a collection chamber for collecting particle sediment separated from the liquid-particle suspension and having a sediment discharge outlet for discharging sediment collected in the collection chamber,a separation zone including a radially inner annular formation of a plurality of axially extending, parallel tubular elements arranged non-coaxially outside and adjacent to one another about the center axis of the rotatable vessel and having a first end in fluid communication with the receiving chamber and a second end in fluid communication with the collection chamber; and downstream of said inner annular formation a radially outer annular formation of a plurality of axially extending, parallel tubular elements having a first end in fluid communication with the collection chamber and a second end in fluid communication with the discharge chamber, said inner and outer annular formations of the tubular elements being separated by a substantially liquid-impervious member; andmeans for selectively opening the sediment discharge outlet to remove sediment from the vessel.