GB1392084A - Apparatus for filtration - Google Patents

Apparatus for filtration

Info

Publication number
GB1392084A
GB1392084A GB1447172A GB1447172A GB1392084A GB 1392084 A GB1392084 A GB 1392084A GB 1447172 A GB1447172 A GB 1447172A GB 1447172 A GB1447172 A GB 1447172A GB 1392084 A GB1392084 A GB 1392084A
Authority
GB
United Kingdom
Prior art keywords
oil
reverse flow
filter
reservoir
march
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
GB1447172A
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.)
Atlas AS
Original Assignee
Atlas AS
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
Priority to DK151771A priority Critical patent/DK130711C/da
Application filed by Atlas AS filed Critical Atlas AS
Publication of GB1392084A publication Critical patent/GB1392084A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18Heating or cooling the filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/0208Separation of non-miscible liquids by sedimentation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08Thickening liquid suspensions by filtration
    • B01D17/10Thickening liquid suspensions by filtration with stationary filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012Settling tanks making use of filters, e.g. by floating layers of particulate material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/009Heating or cooling mechanisms specially adapted for settling tanks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02Settling tanks with single outlets for the separated liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30Control equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30Control equipment
    • B01D21/302Active control mechanisms with external energy, e.g. with solenoid valve
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30Control equipment
    • B01D21/34Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • B01D29/33Self-supporting filtering elements arranged for inward flow filtration
    • B01D29/333Self-supporting filtering elements arranged for inward flow filtration with corrugated, folded filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/50Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/12Pleated filters

Abstract

1392084 Oil filter with reverse flow cleaning ATLAS AS 28 March 1972 [30 March 1971] 14471/72 Heading BID Filter elements in a housing E are periodically cleaned by reverse flow of filtered oil from a downstream reservoir K, which is vented at L during filtering to allow it to fill, valves L and G being then closed, and compressed air supplied through valve O to create a high pressure in the top of the reservoir which creates an initial high speed reverse flow when valve G is first opened, after which reverse flow continues at a lower speed but for a relatively longer period under a continuous supply of compressed air through restriction R. Filter cake and oil are displaced from around the elements (top left) into the lower part of the housing which incorporates two settling chambers P 1 and P 2 acting in parallel, and through these oil is displaced back to unfiltered oil tank A. Settled solids and water are periodically discharged at S under control of detector T. Reservoir K may be heated to 75‹C and a heater D is supplied for unfiltered oil, which removes solidified paraffin from the elements. Each element may comprise an elongate box with two pleated walls of filter cloth and an internal perforate outlet and support tube leading to manifold F. The reverse flow rates may correspond to 10 times and twice the filtration flow rate during the two cleaning stages, with pressures in similar ratios.
GB1447172A 1971-03-30 1972-03-28 Apparatus for filtration Expired GB1392084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK151771A DK130711C (en) 1971-03-30 1971-03-30

Publications (1)

Publication Number Publication Date
GB1392084A true GB1392084A (en) 1975-04-23

Family

ID=8105661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1447172A Expired GB1392084A (en) 1971-03-30 1972-03-28 Apparatus for filtration

Country Status (8)

Country Link
DE (1) DE2215171A1 (en)
DK (1) DK130711C (en)
ES (1) ES401246A1 (en)
FR (1) FR2132115B1 (en)
GB (1) GB1392084A (en)
IT (1) IT954554B (en)
NL (1) NL7204131A (en)
SE (1) SE386595B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000494A1 (en) * 1986-07-11 1988-01-28 Memtec Limited Cleaning of filters
US5118411A (en) * 1991-02-15 1992-06-02 Martinez Mugica Fernando Filtration system for liquids with suspended particles
GB2252058A (en) * 1991-01-25 1992-07-29 Fernando Martinez Mugica Filter cleaning system
CN108211515A (en) * 2017-12-29 2018-06-29 重庆睿豪科技发展有限公司 A kind of filter method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0859235A1 (en) * 1997-02-14 1998-08-19 Bp Chemicals S.N.C. Analytical system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000494A1 (en) * 1986-07-11 1988-01-28 Memtec Limited Cleaning of filters
US4935143A (en) * 1986-07-11 1990-06-19 Memtec Limited Cleaning of filters
GB2252058A (en) * 1991-01-25 1992-07-29 Fernando Martinez Mugica Filter cleaning system
GB2252058B (en) * 1991-01-25 1994-10-05 Fernando Martinez Mugica Filtration system for liquids with suspended particles
US5118411A (en) * 1991-02-15 1992-06-02 Martinez Mugica Fernando Filtration system for liquids with suspended particles
CN108211515A (en) * 2017-12-29 2018-06-29 重庆睿豪科技发展有限公司 A kind of filter method
CN108211515B (en) * 2017-12-29 2020-07-17 重庆工业职业技术学院 Filtering method

Also Published As

Publication number Publication date
FR2132115B3 (en)
FR2132115B1 (en) 1975-11-07
FR2132115A1 (en) 1972-11-17
DK130711C (en) 1975-09-01
DE2215171A1 (en) 1972-10-12
NL7204131A (en) 1972-10-03
DK130711B (en) 1975-04-01
ES401246A1 (en) 1975-07-16
SE386595B (en) 1976-08-16
IT954554B (en) 1973-09-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees