IL197322B - Filtration apparatus and method for treating granular filtration medium - Google Patents

Filtration apparatus and method for treating granular filtration medium

Info

Publication number
IL197322B
IL197322B IL197322A IL19732209A IL197322B IL 197322 B IL197322 B IL 197322B IL 197322 A IL197322 A IL 197322A IL 19732209 A IL19732209 A IL 19732209A IL 197322 B IL197322 B IL 197322B
Authority
IL
Israel
Prior art keywords
filtering
filtration
medium
filtration apparatus
clogged
Prior art date
Application number
IL197322A
Other languages
Hebrew (he)
Other versions
IL197322A0 (en
Original Assignee
Liquid Automation Ltd
Kessler Ilan Man And Development 2001 Ltd
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 Liquid Automation Ltd, Kessler Ilan Man And Development 2001 Ltd filed Critical Liquid Automation Ltd
Priority to IL197322A priority Critical patent/IL197322B/en
Publication of IL197322A0 publication Critical patent/IL197322A0/en
Priority to PCT/IL2010/000160 priority patent/WO2010097795A1/en
Priority to US13/176,917 priority patent/US9789423B2/en
Publication of IL197322B publication Critical patent/IL197322B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/38—Feed or discharge devices
    • B01D24/40—Feed or discharge devices for feeding
    • B01D24/407—Feed or discharge devices for feeding provoking a tangential stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
    • B01D24/4689—Displacement of the filtering material to a compartment of the filtering device for regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/20—Pressure-related systems for filters
    • B01D2201/204—Systems for applying vacuum to filters
    • B01D2201/208—Systems for applying vacuum to filters by venturi systems

Landscapes

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

Abstract

The invention provides a filtration apparatus and method capable of refreshing (regenerating) clogged filtering grains maintained in a filtering column used in the filtration apparatus, wherein the clogged grains medium is treated in the apparatus of the invention by generating reduced pressure conditions in a portion of a circulating line connected to the filtering column, such that portions of the filtering medium are discharged into the circulating line causing friction and high speed turbulences which separates formations of filtering granules and filtration residues.
IL197322A 2009-02-26 2009-02-26 Filtration apparatus and method for treating granular filtration medium IL197322B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IL197322A IL197322B (en) 2009-02-26 2009-02-26 Filtration apparatus and method for treating granular filtration medium
PCT/IL2010/000160 WO2010097795A1 (en) 2009-02-26 2010-02-25 A filtration apparatus and method for treating granular filtration medium
US13/176,917 US9789423B2 (en) 2009-02-26 2011-07-06 Filtration apparatus and method for treating granular filtration medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL197322A IL197322B (en) 2009-02-26 2009-02-26 Filtration apparatus and method for treating granular filtration medium

Publications (2)

Publication Number Publication Date
IL197322A0 IL197322A0 (en) 2009-12-24
IL197322B true IL197322B (en) 2018-05-31

Family

ID=42113567

Family Applications (1)

Application Number Title Priority Date Filing Date
IL197322A IL197322B (en) 2009-02-26 2009-02-26 Filtration apparatus and method for treating granular filtration medium

Country Status (2)

Country Link
IL (1) IL197322B (en)
WO (1) WO2010097795A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE335057A (en) *
CH171708A (en) * 1933-10-16 1934-09-15 Haeny & Cie E Quick filter.
FR800848A (en) * 1935-04-18 1936-07-20 Filtered
JPS5290865A (en) 1976-01-26 1977-07-30 Kurita Water Ind Ltd Method of washing filter apparatus
US5277829A (en) * 1992-07-14 1994-01-11 Andritz Sprout-Bauer, Inc. Deep bed sand filter
JPH08215509A (en) 1995-02-15 1996-08-27 Ishigaki Mech Ind Co Filter medium washer in moving filter bed type filter
JP3284529B2 (en) 1995-03-30 2002-05-20 株式会社石垣 Transfer device for filter media in mobile filter bed filter

Also Published As

Publication number Publication date
IL197322A0 (en) 2009-12-24
WO2010097795A1 (en) 2010-09-02

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Legal Events

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