FR2416043A1 - Band filter - has endless band which is vibrated before passage through pressing rollers, used for dil. aq. sludges and is continuously washable - Google Patents

Band filter - has endless band which is vibrated before passage through pressing rollers, used for dil. aq. sludges and is continuously washable

Info

Publication number
FR2416043A1
FR2416043A1 FR7803176A FR7803176A FR2416043A1 FR 2416043 A1 FR2416043 A1 FR 2416043A1 FR 7803176 A FR7803176 A FR 7803176A FR 7803176 A FR7803176 A FR 7803176A FR 2416043 A1 FR2416043 A1 FR 2416043A1
Authority
FR
France
Prior art keywords
band
sludges
vibrated
filter
continuously
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
FR7803176A
Other languages
French (fr)
Other versions
FR2416043B1 (en
Inventor
Jean Le Fur
Gerard Rondeau
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.)
Suez International SAS
Original Assignee
Degremont SA
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 Degremont SA filed Critical Degremont SA
Priority to FR7803176A priority Critical patent/FR2416043A1/en
Publication of FR2416043A1 publication Critical patent/FR2416043A1/en
Application granted granted Critical
Publication of FR2416043B1 publication Critical patent/FR2416043B1/fr
Granted 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
    • B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
    • 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
    • B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • 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
    • B01D33/463—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element nozzles
    • 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
    • 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
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
    • B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
    • B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers

Landscapes

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

Abstract

A band filter incorporates a filter element consisting of an endless band which is vibrated, pref. by means of a vibrating frame over which its upper length passes. The vibrating frame is constituted by a rigid structure of elements leaving spaces between them and its edges are inclined so as to give the filter band the form of a trough. The elements consist e.g. of bars, cylindrical or otherwise, a grid or a perforated plate. The band is vibrated pref. over a fraction of its length comprised between upstream and downstream parts which are not vibrated and constitute upstream a draining section and downstream a zone provided with pressing rollers. The band filter is useful for thickening sludges, waste water and potable waters or for treating waters from e.g. beetroot washing, blast furnaces, paper-mills, fibre treatment plants or towns' waste waters. The appts. can be used for dilute sludges and is continuously washable, whereas existing band filters cannot, clog easily and cannot be washed continuously.
FR7803176A 1978-02-06 1978-02-06 Band filter - has endless band which is vibrated before passage through pressing rollers, used for dil. aq. sludges and is continuously washable Granted FR2416043A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7803176A FR2416043A1 (en) 1978-02-06 1978-02-06 Band filter - has endless band which is vibrated before passage through pressing rollers, used for dil. aq. sludges and is continuously washable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7803176A FR2416043A1 (en) 1978-02-06 1978-02-06 Band filter - has endless band which is vibrated before passage through pressing rollers, used for dil. aq. sludges and is continuously washable

Publications (2)

Publication Number Publication Date
FR2416043A1 true FR2416043A1 (en) 1979-08-31
FR2416043B1 FR2416043B1 (en) 1982-10-29

Family

ID=9204221

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803176A Granted FR2416043A1 (en) 1978-02-06 1978-02-06 Band filter - has endless band which is vibrated before passage through pressing rollers, used for dil. aq. sludges and is continuously washable

Country Status (1)

Country Link
FR (1) FR2416043A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126655A2 (en) * 1983-05-24 1984-11-28 Dorr-Oliver Incorporated Vacuum expressor device for rotary drum filter
FR2572303A1 (en) * 1984-10-25 1986-05-02 Goavec Sa Filtration device with a band filter intended for the fine filtration of sensitive liquids
WO1991017041A1 (en) * 1990-05-02 1991-11-14 Sgp-Va Energie- Und Umwelttechnik Gesellschaft M.B.H. Travelling-screen press
EP0458413A1 (en) * 1990-05-21 1991-11-27 Pannevis B.V. A method and device for removing liquid from a mixture of liquid and solid matter
US5462673A (en) * 1993-12-15 1995-10-31 Triton Engineering Services Company Cleaning system for vibratory screening devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800355A (en) * 1955-12-30 1958-08-27 Hans Halstrick A method of removing water from finely divided granular materials of high water content, and apparatus for effecting separation of liquid-solid and solid-solid mixtures
FR1514977A (en) * 1966-08-16 1968-03-01 Chantiers Des Ponts Jumeaux S Method and device for dewatering grain materials
FR2242133A1 (en) * 1973-08-28 1975-03-28 Bahr Albert

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800355A (en) * 1955-12-30 1958-08-27 Hans Halstrick A method of removing water from finely divided granular materials of high water content, and apparatus for effecting separation of liquid-solid and solid-solid mixtures
FR1514977A (en) * 1966-08-16 1968-03-01 Chantiers Des Ponts Jumeaux S Method and device for dewatering grain materials
FR2242133A1 (en) * 1973-08-28 1975-03-28 Bahr Albert

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126655A2 (en) * 1983-05-24 1984-11-28 Dorr-Oliver Incorporated Vacuum expressor device for rotary drum filter
EP0126655A3 (en) * 1983-05-24 1986-06-18 Dorr-Oliver Incorporated Vacuum expressor device for rotary drum filter
FR2572303A1 (en) * 1984-10-25 1986-05-02 Goavec Sa Filtration device with a band filter intended for the fine filtration of sensitive liquids
WO1991017041A1 (en) * 1990-05-02 1991-11-14 Sgp-Va Energie- Und Umwelttechnik Gesellschaft M.B.H. Travelling-screen press
EP0458413A1 (en) * 1990-05-21 1991-11-27 Pannevis B.V. A method and device for removing liquid from a mixture of liquid and solid matter
US5133883A (en) * 1990-05-21 1992-07-28 Elektronweg 24 Method for removing liquid from a mixture of liquid and solid matter
US5462673A (en) * 1993-12-15 1995-10-31 Triton Engineering Services Company Cleaning system for vibratory screening devices

Also Published As

Publication number Publication date
FR2416043B1 (en) 1982-10-29

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Legal Events

Date Code Title Description
ST Notification of lapse