B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 33/50 (2006.01)
Patent
CA 2544315
An apparatus for separating a suspension into a fine fraction and a coarse fraction of the suspension containing solid particles, comprises a rotatable filter disc (5) having a wall (6) of filtering material. During rotation of the filter disc the fine fraction passes through the wall of filtering material, while a mat of the coarse fraction of the suspension is deposited on the wall of filtering material. A mat detachment device (13) includes liquid jet nozzles (14) adapted to spray liquid jets that detach the mat of coarse fraction. The detachment device also includes air jet nozzles (15) adapted to spray air jets against the wall of filter material, so that the air jets participate in the detachment of the mat of coarse fraction and reduce the liquid dilution of the detached mat of coarse fraction.
L'invention concerne un appareil de séparation d'une suspension en une fraction fine et une fraction grossière de la suspension contenant des particules. Cet appareil comprend un disque filtrant rotatif (5) ayant une paroi (6) de matière filtrante. Pendant la rotation du disque filtrant, la fraction fine traverse la paroi de matière filtrante, tandis qu'une couche de fraction grossière de la suspension se dépose sur la paroi de matière filtrante. Un dispositif (13) destiné au détachement de ladite couche comprend des buses (14) destinées à pulvériser des jets de liquide qui détachent la couche de fraction grossière. Le dispositif de détachement comprend également des buses (15) destinées à la pulvérisation de jets d'air sur la paroi de matière filtrante de telle façon que les jets d'air contribuent au détachement de la couche de fraction grossière et réduisent la dilution liquide de la couche de fraction grossière détachée.
Gowling Lafleur Henderson Llp
Nordic Water Products Ab
LandOfFree
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