FR2204443A1 - Continuous filter for low viscosity liquids - esp. water from surface drains, with cylindrical element to facilitate removal of filter cake - Google Patents

Continuous filter for low viscosity liquids - esp. water from surface drains, with cylindrical element to facilitate removal of filter cake

Info

Publication number
FR2204443A1
FR2204443A1 FR7238313A FR7238313A FR2204443A1 FR 2204443 A1 FR2204443 A1 FR 2204443A1 FR 7238313 A FR7238313 A FR 7238313A FR 7238313 A FR7238313 A FR 7238313A FR 2204443 A1 FR2204443 A1 FR 2204443A1
Authority
FR
France
Prior art keywords
coils
cylindrical element
esp
filter cake
filter
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR7238313A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAGIHARA TADASHI JA
Original Assignee
HAGIHARA TADASHI JA
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 HAGIHARA TADASHI JA filed Critical HAGIHARA TADASHI JA
Priority to FR7238313A priority Critical patent/FR2204443A1/en
Publication of FR2204443A1 publication Critical patent/FR2204443A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
    • B01D33/275—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces using contiguous impervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D33/503—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles the backwash arms, shoes acting on the cake side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis
    • 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

Landscapes

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

Abstract

The filter element comprises an open-work cylindrical former, e.g. a rigid case of longitudinal bars between annular flanges, on which is tightly wound a helix of stainless steel wire with adjacent coils touching each other and secured by tack welds. The coils may be seated in notches around the former, spaced at a helical pitch equal to the dia. of the wire; the coils are ground down radially to produce clearances between the coils as grinding depth exceeds half the dia. of wire. The rigid, smooth, cylindrical element is ideally suited to automatic, rotary scraping to remove filter cake.
FR7238313A 1972-10-27 1972-10-27 Continuous filter for low viscosity liquids - esp. water from surface drains, with cylindrical element to facilitate removal of filter cake Withdrawn FR2204443A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7238313A FR2204443A1 (en) 1972-10-27 1972-10-27 Continuous filter for low viscosity liquids - esp. water from surface drains, with cylindrical element to facilitate removal of filter cake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238313A FR2204443A1 (en) 1972-10-27 1972-10-27 Continuous filter for low viscosity liquids - esp. water from surface drains, with cylindrical element to facilitate removal of filter cake

Publications (1)

Publication Number Publication Date
FR2204443A1 true FR2204443A1 (en) 1974-05-24

Family

ID=9106368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7238313A Withdrawn FR2204443A1 (en) 1972-10-27 1972-10-27 Continuous filter for low viscosity liquids - esp. water from surface drains, with cylindrical element to facilitate removal of filter cake

Country Status (1)

Country Link
FR (1) FR2204443A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047836A2 (en) * 1980-09-13 1982-03-24 Klöckner-Humboldt-Deutz Aktiengesellschaft Edge filter
EP0137510A2 (en) * 1983-10-12 1985-04-17 Politechnika Warszawska Apparatus for dynamic separation of suspensions of solid bodies in liquids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047836A2 (en) * 1980-09-13 1982-03-24 Klöckner-Humboldt-Deutz Aktiengesellschaft Edge filter
EP0047836A3 (en) * 1980-09-13 1982-10-06 Klockner-Humboldt-Deutz Aktiengesellschaft Edge filter
EP0137510A2 (en) * 1983-10-12 1985-04-17 Politechnika Warszawska Apparatus for dynamic separation of suspensions of solid bodies in liquids
EP0137510A3 (en) * 1983-10-12 1986-01-22 Politechnika Warszawska Apparatus for dynamic separation of suspensions of solid bodies in liquids

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Legal Events

Date Code Title Description
ST Notification of lapse