Membrane filter unit and method for the production of the...

B - Operations – Transporting – 01 – D

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B01D 63/02 (2006.01) B01D 65/00 (2006.01) B29C 70/84 (2006.01)

Patent

CA 2553595

The invention relates to a membrane filter unit for liquid or gaseous media, comprising a bundle of capillary membranes (1) which are open on at least one front surface side and which are cast in an area which is close to the end of the open membrane ends (2), in a sealing layer (3) forming a hardened head part. The open membrane ends (2) protrude on the outer side of the sealing layer (3). The sealing layer (3) is arranged on a spacer element (4) which has a layer which is penetrated by the capillary membranes (1) and which is non- permeable in relation to the casting material which hardens in order to form the sealing layer (3). The invention also relates to a method for the production of a membrane filter unit.

L'invention concerne une unité de filtre à membrane pour milieux liquides ou gazeux, comprenant un faisceau de membranes capillaires (1) ouvertes sur au moins une face avant qui, dans une zone voisine de l'extrémité (2) des membranes ouvertes, sont coulées dans une couche d'étanchéité (3) durcie de manière à former une pièce de tête solide, les extrémités ouvertes des membranes (2) étant en saillie sur la face externe de la couche d'étanchéité (3). La couche d'étanchéité (3) est disposée sur un élément d'écartement (4) présentant une couche traversée par les membranes capillaires (1) et imperméable au matériau coulé, durcissant pour la couche d'étanchéité. L'invention concerne en outre un procédé de fabrication de l'unité de filtre à membrane précitée.

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