Filter module and process for manufacture of same

Details Filter module and process for manufacture of same Filter module and process for manufacture of same

B - Operations, Transporting

01

D

B01D 29/21 (2006.01) B01D 29/23 (2006.01)

Patent

CA 2614438

The present invention provides a filter module comprising a body of wound layers of a sheet material, said sheet material having a plurality of openings formed therein, said openings forming two types of channels within the wound layers of sheet material of said body, said channels extending in a direction from the inner peripheral surface to the outer peripheral surface, a first type of channels being open at one end at said outer peripheral surface of the body and closed at the other end located adjacent to said inner peripheral surface, a second type of channels being open at one end at said inner peripheral surface of the body, and closed at the other end located adjacent to said outer peripheral surface, said channels of the one type being separated from the channels of the other type by portions of sheet material, wherein the surface of at least one type of the channels supports a precoat and a process for the manufacturing of such a filter module.

La présente invention concerne un module filtrant, qui comprend un corps constitué de couches enroulées d'un matériau en feuilles. Le matériau en feuilles est percé d'une pluralité d'ouvertures formant deux types de canaux à l'intérieur des couches enroulées du matériau en feuilles dudit corps. Les canaux s'étendent, dans un sens, de la surface périphérique intérieure à la surface périphérique extérieure du corps. Un premier type de canal est ouvert à une extrémité au niveau de ladite surface périphérique extérieure du corps et fermé à l'autre extrémité jouxtant ladite surface périphérique intérieure du corps. Un second type de canal est ouvert à une extrémité au niveau de ladite surface périphérique intérieure du corps et fermé à l'autre extrémité jouxtant ladite surface périphérique extérieure du corps. Lesdits canaux d'un type sont séparés des canaux de l'autre type par des parties de matériau en feuille, et la surface d'au moins un type de canal reçoit une précouche. L'invention concerne en outre un procédé de fabrication dudit module filtrant.

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