Patent ID: 6174339
Filing Date: 2001-01-16
Classification: B01D

Abstract:
An apparatus for separating particulate material from a fluid stream, said apparatus comprising:a) a vessel defining a vessel inlet for receiving an input stream containing particulate material, a fluid outlet for discharging a principally fluid stream having a reduced concentration of particulate material relative to the input stream, and a bottom closure, the bottom closure defining a bottom outlet for a particle stream containing the solids removed from the input stream and defining at least the bottom of a particle collection chamber;b) an upper chamber closure and a lower chamber closure at least partially defining, within the separation vessel, a separation chamber in communication with the vessel inlet and fluid outlet;c) a plurality of centrifugal separators located at least partially in the separation chamber, the centrifugal separators each defining a separator inlet in communication with the vessel inlet for receiving the input stream, a separator outlet in communication with the fluid outlet for discharging a principally fluid stream having a reduced concentration of particulate material relative to the input stream, and a solids discharge opening for downwardly discharging particulate material into the particle collection chamber; andd) a vertically extending wall comprising a cylindrical skirt bordering the perimeter of multiple discharge openings and extending below the discharge openings that it surrounds to define a bottom outlet in direct communication with the solids outlet through the particle collection chamber.