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
reservoir
filter
elements
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
Application filed by Atlas AS filed Critical Atlas AS
Publication of GB1392084A publication Critical patent/GB1392084A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08—Thickening liquid suspensions by filtration
    • B01D17/10—Thickening liquid suspensions by filtration with stationary filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/009—Heating or cooling mechanisms specially adapted for settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/302—Active control mechanisms with external energy, e.g. with solenoid valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • 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
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • B01D29/333—Self-supporting filtering elements arranged for inward flow filtration with corrugated, folded filtering elements
    • 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated 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)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK151771AA DK130711B (en) 1971-03-30 1971-03-30 Liquid filtration method and method of performing the method.

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) DK130711B (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 (5)

* 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
CN111534322A (en) * 2020-04-21 2020-08-14 安泰科技股份有限公司 Purification device and purification method for raw materials for producing needle coke

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 (9)

* 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
CN111534322A (en) * 2020-04-21 2020-08-14 安泰科技股份有限公司 Purification device and purification method for raw materials for producing needle coke
CN111534322B (en) * 2020-04-21 2022-04-01 安泰科技股份有限公司 Purification device and purification method for raw materials for producing needle coke

Also Published As

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

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Legal Events

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