Spiral wound crossflow filter

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 63/10 (2006.01) B01D 65/00 (2006.01)

Patent

CA 2738589

The present disclosure describes a spiral cross-flow filter. The spiral cross-flow filter includes a filter element having a continuous web of leaves (7) formed by pleating a laminate filter element. The filter element may include a composite filter material including a first layer of a membrane material (9)adjacent an outer shell, and a second layer (10) of a permeate spacer material adjacent a permeate tube (4). The plurality of leaves wrap around the permeate tube in a uniform "spiral" configuration and may be separated by feed spacers.

La présente invention concerne un filtre à écoulement transversal en spirale. Ce filtre à écoulement transversal en spirale comprend un élément de filtration qui contient une bande continue de feuilles (7) formée par plissage dun élément de filtration stratifié. Lélément de filtration peut comprendre un matériau de filtration composite qui comprend une première couche dun matériau de membrane (9) adjacente à une enveloppe externe, et une seconde couche (10) dun matériau espaceur de perméat adjacente à un tube de perméat (4). La pluralité de feuilles enveloppe le tube de perméat selon une configuration uniforme « en spirale » et peut être séparée par des espaceurs dalimentation.

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