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GB914393A - Backwash filtering system - Google Patents

Backwash filtering system

Info

Publication number
GB914393A
GB914393A GB32788/61A GB3278861A GB914393A GB 914393 A GB914393 A GB 914393A GB 32788/61 A GB32788/61 A GB 32788/61A GB 3278861 A GB3278861 A GB 3278861A GB 914393 A GB914393 A GB 914393A
Authority
GB
United Kingdom
Prior art keywords
compartment
valve
filters
filter
liquid
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
GB32788/61A
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.)
HAROLD HENRY HARMS
Original Assignee
HAROLD HENRY HARMS
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 HAROLD HENRY HARMS filed Critical HAROLD HENRY HARMS
Priority to GB32788/61A priority Critical patent/GB914393A/en
Publication of GB914393A publication Critical patent/GB914393A/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
    • B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
    • 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
    • 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
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B01D21/12—Settling tanks with multiple outlets for the separated liquids with moving scrapers
    • 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
    • B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
    • B01D21/183—Construction of the scrapers or the driving mechanisms for settling tanks with multiple scraping mechanisms
    • 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
    • B01D29/114—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 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Sewage (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

914,393. Filters in parallel; gravity-separation apparatus. HARMS. H. H. Sept. 13, 1961, No. 32788/61. Class 46. Machine-tool coolant enters, by a pipe 11, Fig. 1, a perforate pipe 14, Fig. 2, within a settling tank 10, and flows under a baffle 16 in a first compartment 15 into weir troughs 17, whence it flows into a second compartment 18. Solids from these compartments are removed at 45, Fig. 1, by scraping conveyers 22, 24, Fig. 2. Liquid is withdrawn from compartment 18 by a pump 55 at 51, Figs. 1 and 2, and is discharged to four filter casings 80 each having an inlet valve 71. Filtrate passes to a manifold 100 and returns to the machine tool 12 via a pressure relief valve 101. Each filter casing 80 contains a pleated cylindrical element through which liquid flows inwardly; an extra outlet 115 communicates with the outside of the element. For most of the time all the filters are filtering, but periodically and sequentially each is backwashed for a short period by means of a sequence controller housed at 180, Fig. 1, and driven by the conveyer-operating motor 47. The sequence controller governs a solenoidoperated valve, 175 for each filter which valve acts to admit compressed air from a line 200, Fig. 1, to one end of a cylinder 171, Fig. 2, thereby closing inlet valve 71 and opening a valve 121 in the extra outlet 115. Thereupon filtrate from manifold 100 backwashes the relevant filter; the residue and liquid discharge through valve 121 into a seepage tank 130 located within a third compartment 20 having a scraping conveyer 26, of the settling tank 10. Liquid from the seepage tank 130 seeps through a row of holes 132 at its base into compartment 20, and overflows thence at 21 into compartment 18 for settlement and return at 51 to the filters. The holes 132 are kept clean on the inside by a conveyer 150 (which also dumps settled solids at 150a) and have adjustable obturators on the outside. In Fig. 4 (not shown), only three filters are provided and the base of the seepage tank is triangular in elevation.
GB32788/61A 1961-09-13 1961-09-13 Backwash filtering system Expired GB914393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32788/61A GB914393A (en) 1961-09-13 1961-09-13 Backwash filtering system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32788/61A GB914393A (en) 1961-09-13 1961-09-13 Backwash filtering system

Publications (1)

Publication Number Publication Date
GB914393A true GB914393A (en) 1963-01-02

Family

ID=10344002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32788/61A Expired GB914393A (en) 1961-09-13 1961-09-13 Backwash filtering system

Country Status (1)

Country Link
GB (1) GB914393A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2016171998A1 (en) * 2015-04-20 2016-10-27 Covestro Llc Process for the continual inline filration of a process stream
CN106492537A (en) * 2016-11-21 2017-03-15 江苏维泽净化科技股份有限公司 Backpulsing cutting fluid filtration system and filter method
EP3222336A1 (en) * 2016-03-21 2017-09-27 Green Seed S.r.l. Tank for sedimentation of the inorganic part of poultry dejection and relative method for removing said inorganic part
CN114665118A (en) * 2021-04-14 2022-06-24 长城汽车股份有限公司 Cooling system for fuel cell and vehicle
CN117357990A (en) * 2023-11-28 2024-01-09 安徽钰哲农业科技有限公司 Sedimentation type dust removing system for rice processing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2016171998A1 (en) * 2015-04-20 2016-10-27 Covestro Llc Process for the continual inline filration of a process stream
CN107635636A (en) * 2015-04-20 2018-01-26 科思创有限公司 Technique for the continuous inline filtering of process stream
US10751649B2 (en) 2015-04-20 2020-08-25 Covestro Llc Process for the continual inline filtration of a process stream
EP3222336A1 (en) * 2016-03-21 2017-09-27 Green Seed S.r.l. Tank for sedimentation of the inorganic part of poultry dejection and relative method for removing said inorganic part
CN106492537A (en) * 2016-11-21 2017-03-15 江苏维泽净化科技股份有限公司 Backpulsing cutting fluid filtration system and filter method
CN114665118A (en) * 2021-04-14 2022-06-24 长城汽车股份有限公司 Cooling system for fuel cell and vehicle
CN117357990A (en) * 2023-11-28 2024-01-09 安徽钰哲农业科技有限公司 Sedimentation type dust removing system for rice processing

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