CH521776A - Multi-stage filter - Google Patents

Multi-stage filter

Info

Publication number
CH521776A
CH521776A CH621871A CH621871A CH521776A CH 521776 A CH521776 A CH 521776A CH 621871 A CH621871 A CH 621871A CH 621871 A CH621871 A CH 621871A CH 521776 A CH521776 A CH 521776A
Authority
CH
Switzerland
Prior art keywords
stage filter
stage
filter
Prior art date
Application number
CH621871A
Other languages
German (de)
Inventor
Herlt Heimo
Original Assignee
Herlt Heimo
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 Herlt Heimo filed Critical Herlt Heimo
Publication of CH521776A publication Critical patent/CH521776A/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
    • B01D24/007—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection
    • B01D24/008—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection arranged concentrically or coaxially
    • 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
    • B01D24/402—Feed or discharge devices for feeding containing fixed liquid displacement elements or cores
    • 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/14—Particulate filter materials with a lower density than the liquid mixture to be filtered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/18—Filters characterised by the openings or pores
    • B01D2201/188—Multiple filtering elements having filtering areas of different size

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
CH621871A 1970-06-23 1971-04-29 Multi-stage filter CH521776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2030824A DE2030824C3 (en) 1970-06-23 1970-06-23 Multi-stage filter

Publications (1)

Publication Number Publication Date
CH521776A true CH521776A (en) 1972-04-30

Family

ID=5774668

Family Applications (1)

Application Number Title Priority Date Filing Date
CH621871A CH521776A (en) 1970-06-23 1971-04-29 Multi-stage filter

Country Status (5)

Country Link
AT (1) AT315204B (en)
BE (1) BE768197A (en)
CH (1) CH521776A (en)
DE (1) DE2030824C3 (en)
FR (1) FR2099811A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192631A2 (en) * 1985-01-11 1986-08-27 STOISER & WOLSCHNER Alleininhaber Dipl.-Ing. Heinz Wolschner SW-span-Kläranlagen-Umwelttechnik Filter chamber of gravity filter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8712336U1 (en) * 1987-09-11 1987-10-29 Bruno Kern GmbH, 8752 Mömbris Filters for water purification, especially for swimming pools
FR2656813B1 (en) * 1990-01-05 1993-10-08 Hebraoui Michel FILTER ASSEMBLY FOR LIQUIDS WITH INDEPENDENT PREFILTRATION AND CLEANING CHAMBERS.
BR112015000866A2 (en) 2012-07-16 2017-06-27 Sonitec Vortisand Tech Inc medium bed filter for fine particle filtration of a raw liquid stream, and method for fine particle filtration of a raw liquid stream

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192631A2 (en) * 1985-01-11 1986-08-27 STOISER & WOLSCHNER Alleininhaber Dipl.-Ing. Heinz Wolschner SW-span-Kläranlagen-Umwelttechnik Filter chamber of gravity filter
EP0192631A3 (en) * 1985-01-11 1986-10-22 Stoiser & Wolschner Umwelttech Filter chamber of gravity filter

Also Published As

Publication number Publication date
FR2099811A5 (en) 1972-03-17
DE2030824C3 (en) 1975-03-20
DE2030824A1 (en) 1972-01-13
DE2030824B2 (en) 1974-08-08
BE768197A (en) 1971-11-03
AT315204B (en) 1974-05-10

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Legal Events

Date Code Title Description
PL Patent ceased