Separator for separating particles from a slurry

B - Operations – Transporting – 03 – B

Patent

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Details

B03B 5/18 (2006.01) B03B 5/10 (2006.01)

Patent

CA 2184480

A separator (1) for separating dense particulates from slurry includes a sealed housing (2) enclosing a submerged screening bed (33) which allows dense particulates to fall into a hutch (6) from which they may be discharged. The housing has a slurry inlet (4) arranged to deliver slurry to a sump (3) which directs slurry to flow radially over the bed. An annular cavity (23) formed between the housing and bed receives tailings flowing off the top of the bed. An outlet (7) from the annular cavity allows discharge of the tailings, and a liquid inlet (30) to the hutch provides an upward flow of liquid through the bed. The bed is agitated to assist passage of dense particulates.

La présente invention concerne un séparateur (1) conçu pour séparer des matières particulaires denses contenues dans des boues liquides. Ce séparateur comprend une enceinte de confinement (2) renfermant un lit de criblage (33) submergé qui permet aux matières particulaires denses de tomber dans une benne (6) d'où elles peuvent être déchargées. L'enceinte présente une entrée (4) de boue liquide disposée de manière à acheminer cette dernière vers une citerne (3) qui dirige la boue liquide de manière à ce qu'elle passe radialement sur le lit de criblage (33). Une cavité annulaire (23) formée entre l'enceinte de confinement et le lit de criblage reçoit les déchets de lavage débordant du haut du lit. Un orifice d'échappement (7) prévu dans la cavité annulaire permet de décharger ces déchets, et un orifice d'admission (30) dans la benne permet un écoulement ascendant du liquide à travers le lit de criblage, que l'on agite pour faciliter le passage des matières particulaires denses.

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