B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 33/21 (2006.01) B01D 33/46 (2006.01)
Patent
CA 2431407
A positive pressure disc-type filtration apparatus (10) including a collection trough (40) internal to the cylindrical pressure vessel housing the filter discs (24). The collection trough (40) is entirely disposed within the cylinder of the pressure vessel (12) and configured and located to receive and direct filter cake removed from the discs (24) and then reslurried and sluiced toward the center of the trough using jets of liquid (32), to be discharged longitudinally centrally through a single outlet extending downwardly from the trough and through the wall of the pressure vessel (12). A method of filtration is also disclosed.
L'invention concerne un appareil de filtration de type disque à pression positive (10) comprenant un auget collecteur (40) intérieur à la cuve cylindrique sous pression contenant les disques du filtre (24). L'auget collecteur (40) est monté en totalité dans le cylindre de la cuve sous pression (12) et est configuré et positionné de manière à recevoir et à diriger le gâteau de filtration enlevé des disques (24), puis remis en suspension épaisse et évacué par éclusage vers le centre de l'auget à l'aide de jets de liquide (32), afin d'être évacué longitudinalement de manière centrée à travers un orifice simple s'étendant vers le bas entre l'auget et à travers la paroi de la cuve sous pression (12). L'invention concerne en outre un procédé de filtration.
Flsmidth A/s
Gl&v Management Hungary Kft.
Gowling Lafleur Henderson Llp
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