Rotary filter device for filtering liquids

Details Rotary filter device for filtering liquids Rotary filter device for filtering liquids

B - Operations, Transporting

01

D

B01D 63/16 (2006.01) B01D 33/21 (2006.01) B01D 61/20 (2006.01) B01D 65/08 (2006.01)

Patent

CA 2516230

The invention relates to a device for filtering a medium. According to the invention, a device of this type has the following features: the device for filtering a medium comprises at least one membrane disk and at least one turbulence disk; both disks are rotationally mounted; both disks are arranged in such a manner that their rotation axes are essentially parallel to one another and that they overlap when viewed from above; these disks are placed near one another in an axial direction so that the turbulence disk produces a turbulence in the area of the relevant lateral face of the membrane disk; the membrane disk is connected to a hollow shaft in a rotationally fixed manner; the hollow shaft is conductively connected to a cavity inside the membrane disk, and; both disks can be driven in the same direction of rotation. The inventive device is characterized in that the diameter of the membrane disk is less than the diameter of the turbulence disk to such an extent that, on the connecting line between their rotation axes, the difference in circumferential velocities of both disks is at least almost equal at every point in the overlapping area.

L'invention concerne un dispositif permettant de filtrer une substance. Selon l'invention, ledit dispositif présente les caractéristiques suivantes : ledit dispositif est destiné à filtrer une substance et comprend au moins un disque membranaire, au moins un disque de turbulence. Les deux disques sont montés rotatifs et sont disposés comme suit : leurs axes de rotation sont sensiblement parallèles et ils se chevauchent en vue de dessus. Ils sont disposés l'un à côté de l'autre dans le sens axial, de sorte que le disque de turbulence induise une turbulence dans la zone de la surface latérale concernée du disque membranaire. Ledit disque membranaire est relié, bloqué en rotation, à un arbre creux, relié quant à lui de manière conductrice avec un espace creux dans le disque membranaire. Les deux disques peuvent être entraînés dans le même sens de rotation. Ce dispositif se caractérise en ce que le diamètre du disque membranaire est d'autant plus petit que le diamètre du disque de turbulence, que la différence des vitesses périphériques des deux disques sur la ligne de jonction entre leurs axes de rotation dans la zone de chevauchement est approximativement identique en chaque point.

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