GB1389920A - Liquid filters - Google Patents

Liquid filters

Info

Publication number
GB1389920A
GB1389920A GB2443472A GB2443472A GB1389920A GB 1389920 A GB1389920 A GB 1389920A GB 2443472 A GB2443472 A GB 2443472A GB 2443472 A GB2443472 A GB 2443472A GB 1389920 A GB1389920 A GB 1389920A
Authority
GB
United Kingdom
Prior art keywords
discs
casing
slurry
cleaning
spindle
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
GB2443472A
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 GB2443472A priority Critical patent/GB1389920A/en
Publication of GB1389920A publication Critical patent/GB1389920A/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
    • B01D29/62—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
    • B01D29/74—Regenerating the filter material in the filter by forces created by movement of the filter element involving centrifugal force
    • 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
    • B01D29/41—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 mounted transversely on the tube
    • 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
    • B01D29/661—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by using gas-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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Sludge (AREA)

Abstract

1389920 Filters and the cleaning thereof A SCHUTZ 24 May 1972 24434/72 Heading B1D Slurry, e.g. slurry juice in sugar manufacture, is filtered by pumping it from container 20 through pipe 24 into casing 12 which is maintained full of slurry so that it is filtered through perforated discs 13, which are covered with filter cloth, into hollow rotatable spindle 15, the filtrate being withdrawn through pipes 28 and 29; but when cleaning of the filter discs is necessary, the valves are adjusted so that gas, such as compressed air, can be forced from pipe 31 into spindle 15, preferably in several short pulses, and flows through the discs in the reverse direction to the filtrate, while the spindle and discs are rotated by motor 18. During this cleaning operation, slurry flows out of casing 12 through valve 6 into container 20 until the liquid-level in the casing reaches the centre of the discs. The released sludge settles in trough 16. When more thorough cleaning is required, the casing is emptied and the discs are sprayed with water or dilute hydrochloric acid.
GB2443472A 1972-05-24 1972-05-24 Liquid filters Expired GB1389920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2443472A GB1389920A (en) 1972-05-24 1972-05-24 Liquid filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2443472A GB1389920A (en) 1972-05-24 1972-05-24 Liquid filters

Publications (1)

Publication Number Publication Date
GB1389920A true GB1389920A (en) 1975-04-09

Family

ID=10211682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2443472A Expired GB1389920A (en) 1972-05-24 1972-05-24 Liquid filters

Country Status (1)

Country Link
GB (1) GB1389920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680982A1 (en) * 1991-09-06 1993-03-12 Defaud Roger Autonomous device for filtering water feeding a system of droppers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680982A1 (en) * 1991-09-06 1993-03-12 Defaud Roger Autonomous device for filtering water feeding a system of droppers

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Legal Events

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