Abrégé

A filter arrangement includes: a chamber including a chamber inlet for unfiltered liquid, a chamber outlet for filtered liquid and a wall arranged to keep the unfiltered liquid and the filtered liquid separated, a filter element having a longitudinal extension arranged inside of the chamber, wherein the filter element includes a semi-permeable filtration wall including a folded filter arranged in a zig-zag configuration between an inner perforated cylinder and an outer perforated cylinder and an internally located back-washing arrangement. The back-washing arrangement includes: an elongated and hollow body having a longitudinal extension, which is substantially parallel to the longitudinal extension of the filter element, a mechanism configured to drive the body in a rotational and/or an axial movement, a plurality of nozzles arranged in fluid communication with a cavity inside of the body, the plurality of nozzles projecting laterally from the body such that a distal end of each of the plurality of nozzles is arranged in close proximity to the inner perforated cylinder and an outlet arranged in fluid communication with the cavity of the elongated and hollow body and wherein the plurality of nozzles are arranged parallel to each other along a straight line on the body such that they all project in the same direction.

Classes IPC  ?

• B01D 29/68 - Rinçage par chasse, p. ex. rafale ascendante d'air à contre-courant avec des bras, des collecteurs de lavage ou des ajutages à contre-courant
• B01D 29/23 - Éléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'extérieur
• B63J 4/00 - Aménagements des installations de traitement des eaux usées ou d'égout
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 103/00 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter
• B01D 29/64 - Régénération de la substance filtrante dans le filtre par des racloirs, des brosses ou des dispositifs analogues agissant sur le côté de l'élément filtrant où se trouve le gâteau

Abrégé

A filter arrangement includes: a chamber including a chamber inlet for unfiltered liquid, a chamber outlet for filtered liquid and a wall arranged to keep the unfiltered liquid and the filtered liquid separated, a filter element having a longitudinal extension arranged inside of the chamber, wherein the filter element includes a semi-permeable filtration wall including a folded filter arranged in a zig-zag configuration between an inner perforated cylinder and an outer perforated cylinder and an internally located back-washing arrangement. The back-washing arrangement includes: an elongated and hollow body having a longitudinal extension, which is substantially parallel to the longitudinal extension of the filter element, a mechanism configured to drive the body in a rotational and/or an axial movement, a plurality of nozzles arranged in fluid communication with a cavity inside of the body, the plurality of nozzles projecting laterally from the body such that a distal end of each of the plurality of nozzles is arranged in close proximity to the inner perforated cylinder and an outlet arranged in fluid communication with the cavity of the elongated and hollow body and wherein the plurality of nozzles are arranged parallel to each other along a straight line on the body such that they all project in the same direction.

Classes IPC  ?

• B01D 29/68 - Rinçage par chasse, p. ex. rafale ascendante d'air à contre-courant avec des bras, des collecteurs de lavage ou des ajutages à contre-courant
• B01D 29/23 - Éléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'extérieur
• B63J 4/00 - Aménagements des installations de traitement des eaux usées ou d'égout
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 103/00 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter
• B01D 29/64 - Régénération de la substance filtrante dans le filtre par des racloirs, des brosses ou des dispositifs analogues agissant sur le côté de l'élément filtrant où se trouve le gâteau

Abrégé

The present invention relates to a filter arrangement (1) comprising: a chamber (12) comprising a chamber inlet for unfiltered liquid, a chamber outlet for filtered liquid and a wall arranged to keep the unfiltered liquid and the filtered liquid separated, a filter element (2) having a longitudinal extension arranged inside of said chamber (12), wherein said filter element (2) comprises a semi-permeable filtration wall (22) comprising a folded filter (24) arranged in a zig-zag configuration between an inner perforated cylinder (26) and an outer perforated cylinder (28) and an internally located back- washing arrangement (3). The back-washing arrangement (3) comprises: an elongated and hollow body (32) having a longitudinal extension, which is substantially parallel to the longitudinal extension of the filter element (2), a mechanism configured to drive said body (32) in a rotational and/or an axial movement, a plurality of nozzles (34) arranged in fluid communication with a cavity inside of said body (32), said plurality of nozzles (34) projecting laterally from said body (32) such that a distal end (36) of each of said plurality of nozzles (34) is arranged in close proximity to said inner perforated cylinder (26) and an outlet (320) arranged in fluid communication with said cavity of said elongated and hollow body and wherein said plurality of nozzles (34) are arranged parallel to each other along a straight line on said body (32) such that they all project in the same direction.

Classes IPC  ?

• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• B01D 29/23 - Éléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'extérieur
• B01D 29/68 - Rinçage par chasse, p. ex. rafale ascendante d'air à contre-courant avec des bras, des collecteurs de lavage ou des ajutages à contre-courant
• C02F 103/00 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter

Abrégé

A method of applying a treatment to a surface of an open body having a volume within an interior of the open body comprises; providing an inner structure (110) shaped to complement the shape of the interior of the open body and to fill a major portion of the volume or a major portion of a width of the interior of the open body; positioning the inner structure (110) within the open body in order to form a treatment fluid inner volume comprising an inner space (150) confronting an inner surface within the interior of the open body; and introducing a treatment fluid into the treatment fluid inner volume to thereby modify the inner surface of the open body by applying the treatment using the treatment fluid. Optionally, the method includes providing a tank (120) shaped to complement and contain the open body; positioning the open body within the tank (120) in order to form a treatment fluid outer volume comprising an outer space confronting the outer surface of the open body; and introducing the treatment fluid into the treatment fluid outer volume to thereby modify the outer surface of the open body by applying the treatment using the treatment fluid.

Classes IPC  ?

• B05C 3/09 - Appareillages dans lesquels un ouvrage est mis en contact avec une grande quantité de liquide ou autre matériau fluide l'ouvrage étant immergé dans le liquide ou autre matériau fluide pour traiter des objets individuels
• B05C 3/109 - Appareillages dans lesquels un ouvrage est mis en contact avec une grande quantité de liquide ou autre matériau fluide l'ouvrage étant immergé dans le liquide ou autre matériau fluide pour traiter des objets individuels en faisant passer des liquides ou d'autres matériaux fluides dans, ou au travers, de chambres contenant des objets immobiles
• C23C 16/04 - Revêtement de parties déterminées de la surface, p. ex. au moyen de masques

Abrégé

The present invention relates to a filter arrangement (1) comprising: a chamber (12) comprising a chamber inlet for unfiltered liquid, a chamber outlet for filtered liquid and a wall arranged to keep the unfiltered liquid and the filtered liquid separated, a filter element (2) having a longitudinal extension arranged inside of said chamber (12), wherein said filter element (2) comprises a semi-permeable filtration wall (22) comprising a folded filter (24) arranged in a zig-zag configuration between an inner perforated cylinder (26) and an outer perforated cylinder (28) and an internally located back- washing arrangement (3). The back-washing arrangement (3) comprises: an elongated and hollow body (32) having a longitudinal extension, which is substantially parallel to the longitudinal extension of the filter element (2), a mechanism configured to drive said body (32) in a rotational and/or an axial movement, a plurality of nozzles (34) arranged in fluid communication with a cavity inside of said body (32), said plurality of nozzles (34) projecting laterally from said body (32) such that a distal end (36) of each of said plurality of nozzles (34) is arranged in close proximity to said inner perforated cylinder (26) and an outlet (320) arranged in fluid communication with said cavity of said elongated and hollow body and wherein said plurality of nozzles (34) are arranged parallel to each other along a straight line on said body (32) such that they all project in the same direction.

Classes IPC  ?

• B01D 29/23 - Éléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'extérieur
• B01D 29/68 - Rinçage par chasse, p. ex. rafale ascendante d'air à contre-courant avec des bras, des collecteurs de lavage ou des ajutages à contre-courant
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout