GB940201A - Improvements in or relating to filtration processes - Google Patents

Improvements in or relating to filtration processes

Info

Publication number
GB940201A
GB940201A GB8938/60A GB893860A GB940201A GB 940201 A GB940201 A GB 940201A GB 8938/60 A GB8938/60 A GB 8938/60A GB 893860 A GB893860 A GB 893860A GB 940201 A GB940201 A GB 940201A
Authority
GB
United Kingdom
Prior art keywords
compressed air
chambers
filter cloth
filter
pulp
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.)
Expired
Application number
GB8938/60A
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.)
Preparation Industrielle des Combustibles SA
Original Assignee
Preparation Industrielle des Combustibles 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 Preparation Industrielle des Combustibles SA filed Critical Preparation Industrielle des Combustibles SA
Publication of GB940201A publication Critical patent/GB940201A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D29/09—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 filtering bands, e.g. movable between filtering operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
    • B01D25/1645—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates the plates being placed in a non-vertical position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
    • B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
    • B01D25/284—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by gases or by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/32—Removal of the filter cakes
    • B01D25/325—Removal of the filter cakes counter-current flushing, e.g. by air bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/32—Removal of the filter cakes
    • B01D25/325—Removal of the filter cakes counter-current flushing, e.g. by air bumps
    • B01D25/327—Removal of the filter cakes counter-current flushing, e.g. by air bumps with backwash shoes, with nozzles
    • 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
    • B01D29/09—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 filtering bands, e.g. movable between filtering operations
    • B01D29/096—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
    • 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
    • B01D29/68—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
    • 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
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
    • 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
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
    • B01D29/84—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating
    • B01D29/843—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating by direct contact with a fluid
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

940,201. Filters. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. March 14, 1960 [March 24, 1959], No. 8939/60. Heading B1D. In Fig. 1 liquid to be filtered is fed through a valve 1 to a casing 2, having tubular baffles 2a, 2b, until the level of liquid reaches the top of the inner baffle, or some lower level depending on the thickness of filter cake desired. An endless filter cloth 6 is then squeezed between casing 2 and frames 3 and 4 as shown by a pressure device 5. Compressed air is then supplied through valve 1, the pressure increasing progressively until the pulp has been evenly distributed, and thereafter remaining at the maximum. Filtrate from the upper run backwashes the lower run of filter cloth. The filter cake 9 on the upper run is eventually dried by passage therethrough of compressed air. Then the pressure device 5 is released, permitting frames 3 and 4 to fall on their respective supports 11, 20, and the driving drum 7 is set in rotation. A scraper or like device 8 serves to loosen the cake if necessary. In Fig. 2 the frame 3 is dispensed with and the lower frame 4 is rigidly mounted. Sealing devices 17 are provided which may be expanded by pneumatic pressure or other means. In Fig. 3 a continuous filter cloth 23 passes twice through each of a number of superposed filter chambers 22. Pulp to be filtered is supplied to the chambers simultaneously by introduction of compressed air to a previously-filled tank (not shown) connected to the chambers.
GB8938/60A 1959-03-24 1960-03-14 Improvements in or relating to filtration processes Expired GB940201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR790412A FR1219164A (en) 1959-03-24 1959-03-24 Pressure filter

Publications (1)

Publication Number Publication Date
GB940201A true GB940201A (en) 1963-10-23

Family

ID=8712932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8938/60A Expired GB940201A (en) 1959-03-24 1960-03-14 Improvements in or relating to filtration processes

Country Status (3)

Country Link
BE (1) BE578270A (en)
FR (1) FR1219164A (en)
GB (1) GB940201A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306183A (en) * 1964-07-13 1967-02-28 Levine Alfred B Beverage infusion machine
DE2226687A1 (en) * 1971-06-03 1972-12-14 Kurita Machinery Manufacturing Co. Ltd., Osaka (Japan) Method for filtering a muddy material and device for carrying out the method
WO2016178009A1 (en) * 2015-05-04 2016-11-10 Labman Automation Limited A device for filtering a fluid

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1461500B1 (en) * 1963-10-15 1970-04-02 Uk Ni I Ki Khim Mash Floor pressure filter
US3306458A (en) * 1964-02-28 1967-02-28 Hirs Gene Multiple shell filters
DE3479788D1 (en) * 1984-02-06 1989-10-26 Jack R Bratten Belt filter
EP0164482A1 (en) * 1984-06-12 1985-12-18 Tenag Ag Plate filter
DE102014100070B4 (en) * 2013-09-06 2019-04-18 VON ARDENNE Asset GmbH & Co. KG Slit valve and vacuum coating system
CN113262541A (en) * 2021-05-26 2021-08-17 雅化集团旺苍化工有限公司 Medicine strip cooling water pond dregs of a decoction collection separator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306183A (en) * 1964-07-13 1967-02-28 Levine Alfred B Beverage infusion machine
DE2226687A1 (en) * 1971-06-03 1972-12-14 Kurita Machinery Manufacturing Co. Ltd., Osaka (Japan) Method for filtering a muddy material and device for carrying out the method
WO2016178009A1 (en) * 2015-05-04 2016-11-10 Labman Automation Limited A device for filtering a fluid

Also Published As

Publication number Publication date
FR1219164A (en) 1960-05-16
BE578270A (en) 1959-08-17

Similar Documents

Publication Publication Date Title
GB603443A (en) Improvements in or relating to filter apparatus
GB1118383A (en) Filtering apparatus and method
GB1328154A (en) Method for filtration of raw liquid and filter apparatus for use therein
SE7509070L (en) DEVICE FOR CONTINUOUS SEPARATION OF SOLID FROM SCIENTIFIC MIXTURES.
GB1271174A (en) Filter press
GB940201A (en) Improvements in or relating to filtration processes
GB1342793A (en) Filter apparatus
DE3065690D1 (en) Method of cleaning a filter press and filter press
GB1058530A (en) An improved method of filtration
GB1081607A (en) Improvements relating to filters and filtering
US1512977A (en) Filtration apparatus
GB1505713A (en) Chamber filter press
GB1344160A (en) Filter press
GB1348347A (en) Apparatus for filtering a fibrous material suspension
GB1069768A (en) Filtration apparatus
GB904946A (en) Improvements in or relating to a filtering process and apparatus
ES8801879A1 (en) Filter device.
GB903248A (en) Improvements in and relating to the filtering of liquids involving removal of filtercake
JPS6463008A (en) Filtration dehydrator provided with press
GB1246371A (en) Filter press
GB1065840A (en) A method of evacuating portions of unfiltered material from filter presses
GB769642A (en) Improvements in or relating to filtering apparatus
DE931349C (en) Rotary drum filter with a blowing zone in the area of the removal organs for the filter cake
GB939890A (en) A process for the dewatering of sludges
GB917510A (en) Improvements in or relating to membrane filter presses