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DK0968039T3 - Returns flushing filter device - Google Patents

Returns flushing filter device

Info

Publication number
DK0968039T3
DK0968039T3 DK98907968T DK98907968T DK0968039T3 DK 0968039 T3 DK0968039 T3 DK 0968039T3 DK 98907968 T DK98907968 T DK 98907968T DK 98907968 T DK98907968 T DK 98907968T DK 0968039 T3 DK0968039 T3 DK 0968039T3
Authority
DK
Denmark
Prior art keywords
liquid
flow
backwash
filtering
filter elements
Prior art date
Application number
DK98907968T
Other languages
Danish (da)
Inventor
Heinrich Teckentrup
Ralf Wnuk
Norbert Lang
Original Assignee
Hydac Process Technology Gmbh
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 Hydac Process Technology Gmbh filed Critical Hydac Process Technology Gmbh
Application granted granted Critical
Publication of DK0968039T3 publication Critical patent/DK0968039T3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters 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
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/668—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with valves, e.g. rotating valves for coaxially placed filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/02—Filtering elements having a conical form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0453—Filter tubes connected to plates positioned between at least two plates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a backwash filtering device using tubular wedge-wired screen elements (8, 42) which can be accommodated in a casing (30) comprising a filter inlet (32) and an outlet (4) for the liquid that is to be filtered. Liquid can flow through the filter elements (8, 42) in both directions for filtering (24) or backwashing (26). An actuatable washing arm (5) is provided for backwashing (26). Said arm has a liquid outlet (52) for contaminated liquid which can be successively displaced underneath the flow-through cross-sections (D) of the filter elements (8, 42). By providing at least part of the tubular wedge-wired screen elements used (8) with a conical design, a backwash device with improved filtering, enhanced backwash capacity and increased energy performance in relation to the liquid flow in said filter elements is thus obtained.
DK98907968T 1997-03-20 1998-01-21 Returns flushing filter device DK0968039T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19711589A DE19711589A1 (en) 1997-03-20 1997-03-20 Slotted screen filter element and backwash filter device for receiving the same
PCT/EP1998/000310 WO1998042426A1 (en) 1997-03-20 1998-01-21 Backwash filtering device

Publications (1)

Publication Number Publication Date
DK0968039T3 true DK0968039T3 (en) 2003-02-17

Family

ID=7823992

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98907968T DK0968039T3 (en) 1997-03-20 1998-01-21 Returns flushing filter device

Country Status (8)

Country Link
EP (1) EP0968039B1 (en)
JP (1) JP4065331B2 (en)
AT (1) ATE226105T1 (en)
DE (2) DE19711589A1 (en)
DK (1) DK0968039T3 (en)
ES (1) ES2186130T3 (en)
PT (1) PT968039E (en)
WO (1) WO1998042426A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19956859A1 (en) 1999-11-25 2001-06-07 Hydac Filtertechnik Gmbh Backwash filter device
DE10220273A1 (en) 2002-05-07 2003-11-27 Hydac Process Technology Gmbh Process for the production of conical filter elements
DE10323075A1 (en) * 2003-05-22 2004-12-23 Hydac Process Technology Gmbh filter element
DE102004004756A1 (en) * 2004-01-30 2005-08-25 Hydac Process Technology Gmbh filter means
DE102004037280B4 (en) * 2004-07-31 2006-08-10 Hydac Process Technology Gmbh Filter with multiple cylindrical filter elements is sequentially back-flushed on-line, with displacement device maintaining operating pressure in filter chamber during cleaning intervals
DE102005013673A1 (en) * 2005-03-24 2006-09-28 Hydac Process Technology Gmbh Filter system and method for operating the filter system
DE102005016151B4 (en) * 2005-04-07 2013-10-10 K. & H. Eppensteiner Gmbh & Co. Kg filter means
DE102006034942A1 (en) * 2006-07-28 2008-01-31 Hydac Process Technology Gmbh filter system
DE102006036943A1 (en) 2006-08-08 2008-02-14 Hydac Process Technology Gmbh filter means
DE102007003925B4 (en) 2007-01-26 2009-06-04 Hydac Process Technology Gmbh filter system
DE102007003926A1 (en) 2007-01-26 2008-07-31 Hydac Process Technology Gmbh filter system
DE102007054737A1 (en) * 2007-11-16 2009-05-20 Hydac Process Technology Gmbh filter means
DE102009049712A1 (en) 2009-10-17 2011-04-21 Hydac Process Technology Gmbh filter means
DE102011013186B4 (en) * 2011-03-05 2013-01-03 Hydac Filtertechnik Gmbh filter means
JP5833493B2 (en) * 2012-04-25 2015-12-16 三井造船株式会社 Multi-cylinder type automatic backwash strainer for ballast water treatment
JP2013230411A (en) * 2012-04-27 2013-11-14 Mizuno Strainer Kogyo Kk Backwash type filter
DE102014203719A1 (en) * 2014-02-28 2015-09-03 Mahle International Gmbh Method and device for producing a support basket

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237964A (en) * 1938-11-01 1941-04-08 Thomas E Haught Screen cleaning means
DE8306970U1 (en) * 1983-03-08 1984-01-19 Atlantik Gerätebau GmbH, 3570 Stadtallendorf FULLY AUTOMATIC BACK RINSE FILTER
JPS63264110A (en) * 1987-04-21 1988-11-01 Arai Tekkosho:Kk Conical element for filtration or separation
JPH0240891A (en) * 1988-07-29 1990-02-09 Toshiba Corp Thin film electroluminescent display element
DE4030084C2 (en) * 1990-09-22 1999-09-30 Boll & Kirch Filter Backwash filter

Also Published As

Publication number Publication date
EP0968039B1 (en) 2002-10-16
DE19711589A1 (en) 1998-09-24
JP2001516278A (en) 2001-09-25
DE59805969D1 (en) 2002-11-21
ATE226105T1 (en) 2002-11-15
ES2186130T3 (en) 2003-05-01
WO1998042426A1 (en) 1998-10-01
EP0968039A1 (en) 2000-01-05
JP4065331B2 (en) 2008-03-26
PT968039E (en) 2003-03-31

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