VARIABLE FLOW SELF-DILUTING FEEDWELL SYSTEM

In a feed dilution system and method for a thickener or settling tank, a feed pipe nozzle has a variable orifice configured to provide an infeed slurry flow stream of substantially constant velocity. The feed pipe orifice is disposed in a mixing conduit proximate an upstream end thereof, while a dow...

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Bibliographic Details
Main Author LAROS TIMOTHY J
Format Patent
LanguageEnglish
Published 26.06.2014
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:In a feed dilution system and method for a thickener or settling tank, a feed pipe nozzle has a variable orifice configured to provide an infeed slurry flow stream of substantially constant velocity. The feed pipe orifice is disposed in a mixing conduit proximate an upstream end thereof, while a downstream end of the mixing conduit is functionally attached to a feedwell inside the thickener or settling tank, so that the mixing conduit communicates with the feedwell. Where a diluting liquid is introduced into the mixing conduit, the variable-orifice nozzle ensures a substantially uniform degree of dilution of the influent slurry feed stream by the diluting liquid.
Bibliography:Application Number: US201213726968