Method and apparatus for separating pulp material

B - Operations – Transporting – 07 – B

Patent

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B07B 1/22 (2006.01) B03B 5/00 (2006.01) B03B 5/18 (2006.01) B03B 5/32 (2006.01) B04B 3/00 (2006.01)

Patent

CA 2386167

A method and centrifugal apparatus for separating more dense particles from less dense particles contained in a slurry. The separator apparatus receives slurry into a rotor assembly (10) consisting of a bowl (14) open upwardly and a surrounding hutch chamber (22). The bowl (14) has a lower impermeable portion (14), an upper impermeable portion (15), and a frusto-conical screen (16). Elutriation liquid is continuously supplied to the interior of the hutch chamber (22), and a plurality of pulse blocks (30) supply intermittent pulses of liquid to the hutch chamber (22). A dam (20A) is formed at the top of the screen.

Procédé et appareil pour séparer des particules plus denses de particules moins denses, contenues dans une boue liquide. L'appareil séparateur reçoit la boue dans un ensemble à rotor (10) constitué d'un bol (14) ouvert vers le haut et d'une chambre de type huche (22) adjacente. Le bol (14) possède une partie inférieure imperméable (14), une partie supérieure imperméable (15) et un tamis tronconique (16). Un liquide d'élutriation est envoyé en continu à l'intérieur de la chambre (22), et plusieurs blocs à impulsions (30) envoient des impulsions intermittentes de liquide dans la chambre (22). Une digue (20A) est formée au sommet du tamis.

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