GB963271A - Combined sedimentation and filtration process - Google Patents

Combined sedimentation and filtration process

Info

Publication number
GB963271A
GB963271A GB27158/61A GB2715861A GB963271A GB 963271 A GB963271 A GB 963271A GB 27158/61 A GB27158/61 A GB 27158/61A GB 2715861 A GB2715861 A GB 2715861A GB 963271 A GB963271 A GB 963271A
Authority
GB
United Kingdom
Prior art keywords
column
screens
casing
compartments
filter screens
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
GB27158/61A
Inventor
Edmund Basil Chandler
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.)
Head Wrightson and Co Ltd
Original Assignee
Head Wrightson and Co Ltd
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 Head Wrightson and Co Ltd filed Critical Head Wrightson and Co Ltd
Priority to GB27158/61A priority Critical patent/GB963271A/en
Publication of GB963271A publication Critical patent/GB963271A/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
    • B01D29/66—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
    • B01D29/11—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
    • B01D29/17—Supported filter elements arranged for inward flow filtration open-ended the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of 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
    • B01D29/50—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
    • B01D29/54—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 arranged concentrically or coaxially

Abstract

963,271. Filters ; gravity separation apparatus. HEAD WRIGHTSON & CO. Ltd. July 25, 1962 [July 26, 1961], No. 27158/61. Heading BID. Liquid is continuously passed downwards from the top of a substantially vertical column, and withdrawn independently through a plurality of filter screens or groups of filter screens included in or comprising the wall of the column, foreign matter being withdrawn at the bottom of the column. In one embodiment (Figs. 1 and 2) a vertical tubular casing 1 having liquid inlet 2 and sedimented solid outlet 4 is divided into two zones by a column comprising filter screens 5. The annular space between casing and column is divided into compartments 10, 10<SP>1</SP>, 10<SP>11</SP> by T-section spacing members 8 extending between the outer perimeter of screens 5 and the inner surface of the casing, each compartment is fitted with intake and outlet flanged pipe connections 11, 12. Solid containing liquid, preferably treated with e.g. powdered coke or fly-ash to conglomerate oil, enters at 2. Heavy solids sedimentate down the interior of columnar screens 5 to the bottom of the casing, while fine solids are filtered through the screen by withdrawing filtrate through outlets 12 the pressure drop so produced aiding sedimentation within the column. At predetermined intervals outlet 12 in one of compartments 10, 10<SP>1</SP> is closed and water pumped in through 11 to backwash solids from the screens, filtration meanwhile continuing in the other compartments. This operation is repeated in turn for each compartment. In further embodiment (not shown), the annular space between casing and column is divided into axially extending compartments by radial plates projecting from the filter screens. Two concentric groups of columnar screens may be provided.
GB27158/61A 1961-07-26 1961-07-26 Combined sedimentation and filtration process Expired GB963271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27158/61A GB963271A (en) 1961-07-26 1961-07-26 Combined sedimentation and filtration process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27158/61A GB963271A (en) 1961-07-26 1961-07-26 Combined sedimentation and filtration process

Publications (1)

Publication Number Publication Date
GB963271A true GB963271A (en) 1964-07-08

Family

ID=10255138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27158/61A Expired GB963271A (en) 1961-07-26 1961-07-26 Combined sedimentation and filtration process

Country Status (1)

Country Link
GB (1) GB963271A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068558A2 (en) * 1981-06-30 1983-01-05 Shell Internationale Researchmaatschappij B.V. Moving catalyst bed reactor
CN114832499A (en) * 2022-05-18 2022-08-02 武汉中原万城石油化工有限公司 Extraction and separation device for wear-resistant hydraulic oil preparation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068558A2 (en) * 1981-06-30 1983-01-05 Shell Internationale Researchmaatschappij B.V. Moving catalyst bed reactor
EP0068558A3 (en) * 1981-06-30 1983-06-22 Shell Internationale Research Maatschappij B.V. Moving catalyst bed reactor
CN114832499A (en) * 2022-05-18 2022-08-02 武汉中原万城石油化工有限公司 Extraction and separation device for wear-resistant hydraulic oil preparation
CN114832499B (en) * 2022-05-18 2022-11-25 武汉中原万城石油化工有限公司 Extraction and separation device for wear-resistant hydraulic oil preparation

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