WO2010052618A3 - Method and filter device for filtration of a liquid - Google Patents

Method and filter device for filtration of a liquid Download PDF

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Publication number
WO2010052618A3
WO2010052618A3 PCT/IB2009/054803 IB2009054803W WO2010052618A3 WO 2010052618 A3 WO2010052618 A3 WO 2010052618A3 IB 2009054803 W IB2009054803 W IB 2009054803W WO 2010052618 A3 WO2010052618 A3 WO 2010052618A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filtration
liquid
cleaning
hence
Prior art date
Application number
PCT/IB2009/054803
Other languages
French (fr)
Other versions
WO2010052618A2 (en
Inventor
Manfred Bach
Original Assignee
Flsmidth A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flsmidth A/S filed Critical Flsmidth A/S
Publication of WO2010052618A2 publication Critical patent/WO2010052618A2/en
Publication of WO2010052618A3 publication Critical patent/WO2010052618A3/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/117Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/64Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6438Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
    • B01D29/6453Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles with a translational movement with respect to the filtering element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A description is given of a method as well as a filter device for filtration of a liquid containing suspended solid particles, said method comprising a filtration stage wherein the liquid is fed under pressure into a porous, tubular filter (1) causing the liquid to permeate outwardly as a filtrate through the filter and the solid particles to be deposited as a ring-shaped filter cake (7) on the inner side of the filter, and a cleaning stage wherein the filtration process is temporarily stopped and the filter cake (7) is removed from the inner side of the filter. The method and the filtration device are characterized in that a cleaning fluid during the cleaning stage via a number of nozzles (9) provided inside the filter (1) is injected in direction towards the inner side of the filter. Hereby is obtained a quick and efficient cleaning of the filter, hence avoiding blockage of the filter, the possibility of shorter filtration cycles resulting in higher levels of filtration efficiency, a low pressure drop across the filter and hence accelerated flow of filtrate and prolonged lifetime of the filter, leading to lower maintenance costs. This is primarily due to the fact that substances including solidified scales which cause blockage of the filter will be effectively removed by directing jets of a cleaning fluid directly against the inner side of the filter, and hence directly against these substances.
PCT/IB2009/054803 2008-11-08 2009-10-29 Method and filter device for filtration of a liquid WO2010052618A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200801539 2008-11-08
DKPA200801539 2008-11-08

Publications (2)

Publication Number Publication Date
WO2010052618A2 WO2010052618A2 (en) 2010-05-14
WO2010052618A3 true WO2010052618A3 (en) 2010-07-01

Family

ID=42102793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/054803 WO2010052618A2 (en) 2008-11-08 2009-10-29 Method and filter device for filtration of a liquid

Country Status (1)

Country Link
WO (1) WO2010052618A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877157A (en) * 1929-10-02 1932-09-13 Cannon Prutzman Treating Proce Tubular filter
US2851164A (en) * 1956-02-17 1958-09-09 Morino John Swimming pool filter tank
US3426907A (en) * 1967-04-13 1969-02-11 Union Carbide Corp Water spray cleaning of multiple spaced wall filter elements
US4906357A (en) * 1987-07-26 1990-03-06 Mordeki Drori Filter system having multiple filter elements and back flushing assemblies
DE4328547A1 (en) * 1993-08-25 1995-03-02 Putsch & Co H Process and apparatus for cleaning a screen filter for viscous media
EP1129756A2 (en) * 2000-03-03 2001-09-05 Oekag Wassertechnik (Schweiz) AG Device for cleaning a cylindrical screen and rainwater purification equipment with cylindrical screen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877157A (en) * 1929-10-02 1932-09-13 Cannon Prutzman Treating Proce Tubular filter
US2851164A (en) * 1956-02-17 1958-09-09 Morino John Swimming pool filter tank
US3426907A (en) * 1967-04-13 1969-02-11 Union Carbide Corp Water spray cleaning of multiple spaced wall filter elements
US4906357A (en) * 1987-07-26 1990-03-06 Mordeki Drori Filter system having multiple filter elements and back flushing assemblies
DE4328547A1 (en) * 1993-08-25 1995-03-02 Putsch & Co H Process and apparatus for cleaning a screen filter for viscous media
EP1129756A2 (en) * 2000-03-03 2001-09-05 Oekag Wassertechnik (Schweiz) AG Device for cleaning a cylindrical screen and rainwater purification equipment with cylindrical screen

Also Published As

Publication number Publication date
WO2010052618A2 (en) 2010-05-14

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