FR2299066A1 - Process for unblocking filters - using rapid decompression in counter current flow - Google Patents

Process for unblocking filters - using rapid decompression in counter current flow

Info

Publication number
FR2299066A1
FR2299066A1 FR7502526A FR7502526A FR2299066A1 FR 2299066 A1 FR2299066 A1 FR 2299066A1 FR 7502526 A FR7502526 A FR 7502526A FR 7502526 A FR7502526 A FR 7502526A FR 2299066 A1 FR2299066 A1 FR 2299066A1
Authority
FR
France
Prior art keywords
current flow
valve
filter
closed
rapid decompression
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.)
Granted
Application number
FR7502526A
Other languages
French (fr)
Other versions
FR2299066B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7502526A priority Critical patent/FR2299066A1/en
Publication of FR2299066A1 publication Critical patent/FR2299066A1/en
Application granted granted Critical
Publication of FR2299066B1 publication Critical patent/FR2299066B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01D35/20—Vibrating the filters
    • 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
    • B01D29/39—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 hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
    • 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
    • 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
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/72—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

The filter is flushed by rapid decompression in counter-current flow induced by placing a valve having a very rapid action of the order of 0.01 sec. on the discharge side. Thus to flush a filter the inlet valve passing raw fluid to the filter is closed and the valve on the outlet is opened and closed consecutively several times while the inlet valve remains closed. With a pneumatically operated valve using this system, only 2-3 seconds per cycle are required for flushing and a dloss of filtrate of only 1 to 2 % in incurred. Used in the filtration of liquids and gases in the oil, chemical and related industries.
FR7502526A 1975-01-28 1975-01-28 Process for unblocking filters - using rapid decompression in counter current flow Granted FR2299066A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7502526A FR2299066A1 (en) 1975-01-28 1975-01-28 Process for unblocking filters - using rapid decompression in counter current flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7502526A FR2299066A1 (en) 1975-01-28 1975-01-28 Process for unblocking filters - using rapid decompression in counter current flow

Publications (2)

Publication Number Publication Date
FR2299066A1 true FR2299066A1 (en) 1976-08-27
FR2299066B1 FR2299066B1 (en) 1979-04-13

Family

ID=9150382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7502526A Granted FR2299066A1 (en) 1975-01-28 1975-01-28 Process for unblocking filters - using rapid decompression in counter current flow

Country Status (1)

Country Link
FR (1) FR2299066A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231587A2 (en) * 1986-01-31 1987-08-12 Schewitz, Jonathan A method of batch filtration and control means for a filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231587A2 (en) * 1986-01-31 1987-08-12 Schewitz, Jonathan A method of batch filtration and control means for a filter
EP0231587A3 (en) * 1986-01-31 1988-08-17 Alexander Schewitz A method of batch filtration and control means for a filter

Also Published As

Publication number Publication date
FR2299066B1 (en) 1979-04-13

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Legal Events

Date Code Title Description
ST Notification of lapse