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GB1438793A - Method and apparatus for removing and discharging filter residues from filters - Google Patents

Method and apparatus for removing and discharging filter residues from filters

Info

Publication number
GB1438793A
GB1438793A GB2711473A GB2711473A GB1438793A GB 1438793 A GB1438793 A GB 1438793A GB 2711473 A GB2711473 A GB 2711473A GB 2711473 A GB2711473 A GB 2711473A GB 1438793 A GB1438793 A GB 1438793A
Authority
GB
United Kingdom
Prior art keywords
gas
chamber
elements
june
filters
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
GB2711473A
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.)
Holstein und Kappert GmbH
Original Assignee
Holstein und Kappert GmbH
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 Holstein und Kappert GmbH filed Critical Holstein und Kappert GmbH
Publication of GB1438793A publication Critical patent/GB1438793A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • 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
    • B01D29/88—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
    • B01D29/94—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 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)
  • Lift Valve (AREA)

Abstract

1438793 Removing filter cake HOLSTEIN & KAPPERT AG 7 June 1973 [8 June 1973] 27114/73 Heading BID To remove filter cake from inward-flow elements 4, unfiltered liquid in chamber 2 is displaced through outlet 9 by delivering gas through 7, the gas pressure holding the cake on the elements. The chamber 2 is then opened to atmosphere at 7, and gas delivered from 5 to filtrate chamber 1, forcing the residual filtrate back through the elements. The resulting cakefiltrate mixture which settles in sump 2' is homogenized by delivering gas through ring distributor 12 and nozzles 11, and is then discharged through conduit 9 or valve 13 by gas delivered through 5 or 7. Apex angle α is 40 to 70 degrees. Normal filtering flow is from 8 to 6.
GB2711473A 1972-06-08 1973-06-07 Method and apparatus for removing and discharging filter residues from filters Expired GB1438793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2227821A DE2227821B2 (en) 1972-06-08 1972-06-08 Process for removing and discharging filter residues from boiler litter

Publications (1)

Publication Number Publication Date
GB1438793A true GB1438793A (en) 1976-06-09

Family

ID=5847122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2711473A Expired GB1438793A (en) 1972-06-08 1973-06-07 Method and apparatus for removing and discharging filter residues from filters

Country Status (6)

Country Link
AT (1) AT334920B (en)
CH (1) CH569503A5 (en)
DE (1) DE2227821B2 (en)
DK (1) DK146677C (en)
GB (1) GB1438793A (en)
NO (1) NO136176C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115839925A (en) * 2022-02-21 2023-03-24 中国科学院烟台海岸带研究所 A seawater nutrient salt online monitoring system and seawater nutrient salt detection method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434343C3 (en) * 1974-07-17 1983-12-08 Holstein Und Kappert Gmbh, 4600 Dortmund Process for low-oxygen precoating of filter aids on filter surfaces
CA1190483A (en) * 1977-06-22 1985-07-16 Kostas S. Arvanitakis Vertical filter system
CH627089A5 (en) 1977-12-16 1981-12-31 Chemap Ag
DE2923010A1 (en) * 1979-06-07 1980-12-18 Interliz Anstalt FLOODING FILTRATION DEVICE FOR FILTERING TURBID LIQUIDS AND FILTRATION METHOD WITH SUCH A DEVICE
DE3722238A1 (en) * 1987-07-06 1989-01-19 Faudi Feinbau METHOD FOR CLEANING FILTER CANDLES IN precoat filters and DEVICE FOR IMPLEMENTING THE METHOD
DE19837569B4 (en) * 1998-08-19 2006-07-06 Khs Ag Method for cleaning filter candles of a candle filter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969655C (en) * 1951-05-19 1958-07-24 Hans Widmaier Switches for electrical circuit diagrams can be locked in different positions
US2780363A (en) * 1952-12-22 1957-02-05 Infilco Inc Apparatus and process for washing diatomite type filters
DE1536779A1 (en) * 1966-11-10 1970-02-26 Enzinger Union Werke Ag Precoat filters for liquids, e.g. Beverages
DE1536783C3 (en) * 1967-05-30 1974-02-28 Enzinger-Union-Werke Ag, 6800 Mannheim Process for removing the filter residue formed from kieselguhr and turbid substances from boiler filters
DE1536782A1 (en) * 1967-05-30 1970-02-12 Enzinger Union Werke Ag Method and device for removing the residual liquid remaining in a tank filter after filtration
CH481669A (en) * 1967-07-12 1969-11-30 Filtrox Maschb Ag Process for cleaning a filter device with built-in filter and device for carrying out the process
DE1972025U (en) * 1967-08-12 1967-11-09 Sack Gmbh Maschf DEVICE FOR CLEANING LIQUIDS, IN PARTICULAR BOHROELEN OD. DGL.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115839925A (en) * 2022-02-21 2023-03-24 中国科学院烟台海岸带研究所 A seawater nutrient salt online monitoring system and seawater nutrient salt detection method
CN115839925B (en) * 2022-02-21 2023-05-30 中国科学院烟台海岸带研究所 Seawater nutrient salt online monitoring system and seawater nutrient salt detection method

Also Published As

Publication number Publication date
NO136176C (en) 1977-08-03
DE2227821B2 (en) 1980-02-28
DK146677B (en) 1983-12-05
CH569503A5 (en) 1975-11-28
DE2227821A1 (en) 1973-12-20
DK146677C (en) 1984-06-12
NO136176B (en) 1977-04-25
ATA437273A (en) 1976-06-15
AT334920B (en) 1977-02-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee