Filter element and method for the manufacture

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 39/20 (2006.01) B01D 29/00 (2006.01) B32B 18/00 (2006.01) C04B 38/00 (2006.01) C04B 38/06 (2006.01)

Patent

CA 2434176

The invention relates to a filter element and its manufacture to be used in removal of liquid from solids containing material to be dried in a capillary suction dryer which filter element contains a ceramic microporous layer having the pore size under 5 micrometer and supported by a ceramic internal layer having recess areas for liquid flowing. The internal layer is made of at least one substrate which continuously surrounds at least one recess area and which ceramic internal layer is surrounded by at least one essentially continuous microporous surface layer.

La présente invention concerne un élément filtrant et son procédé de fabrication, pouvant être utilisé pour extraire un liquide d'une matière contenant des solides devant être séchée dans un sécheur à aspiration capillaire. Cet élément filtrant comprend une couche microporeuse en céramique qui présente une dimension des pores inférieure à 5 micromètres et qui est soutenue par une couche interne en céramique présentant des zones d'embrèvement (2) qui permettent l'écoulement du liquide. La couche interne est entourée par au moins une couche superficielle microporeuse (3) sensiblement continue.

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