GB1365077A - Screening - Google Patents

Screening

Info

Publication number
GB1365077A
GB1365077A GB1786171A GB1786171A GB1365077A GB 1365077 A GB1365077 A GB 1365077A GB 1786171 A GB1786171 A GB 1786171A GB 1786171 A GB1786171 A GB 1786171A GB 1365077 A GB1365077 A GB 1365077A
Authority
GB
United Kingdom
Prior art keywords
influent
screen
screening
solids
disclosed
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
GB1786171A
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.)
Sweco Inc
Original Assignee
Sweco Inc
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 Sweco Inc filed Critical Sweco Inc
Publication of GB1365077A publication Critical patent/GB1365077A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/463—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B01D33/722—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B01D33/763—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid

Abstract

1365077 Screening method SWECO Inc 28 May 1971 [1 June 1970 (4)] 17861/71 Heading B1D The filtering apparatus disclosed is the same as that disclosed in Specification 1,365,078 but the claims are directed to a method of screening a pumpable influent containing solids comprising feeding the influent to the inner surface of a cylindrical screen which is rotating at a speed such as to exert a centrifugal force of from 1 to 7 g on the influent, the influent being separated into a liquid effluent which passes through the screen and a solids-containing concentrate which flows from the inner surface of the screen.
GB1786171A 1970-06-01 1971-05-28 Screening Expired GB1365077A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4210070A 1970-06-01 1970-06-01
US4209870A 1970-06-01 1970-06-01
US4216570A 1970-06-01 1970-06-01
US4209970A 1970-06-01 1970-06-01

Publications (1)

Publication Number Publication Date
GB1365077A true GB1365077A (en) 1974-08-29

Family

ID=27488779

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1786171A Expired GB1365077A (en) 1970-06-01 1971-05-28 Screening
GB662174A Expired GB1365078A (en) 1970-06-01 1971-05-28 Screening apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB662174A Expired GB1365078A (en) 1970-06-01 1971-05-28 Screening apparatus

Country Status (9)

Country Link
US (1) US3627130A (en)
BE (1) BE767899A (en)
CA (3) CA948119A (en)
CH (1) CH538876A (en)
DE (1) DE2127053C3 (en)
FR (1) FR2095692A5 (en)
GB (2) GB1365077A (en)
NL (1) NL7107524A (en)
SE (1) SE378763B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739912A (en) * 1971-05-06 1973-06-19 Sweco Inc Screening and aerating concentrator
US3737038A (en) * 1971-06-03 1973-06-05 Sweco Inc Up-flow separator
US3788470A (en) * 1971-09-20 1974-01-29 Fmc Corp Method of filtering liquids
US3771656A (en) * 1972-02-28 1973-11-13 R Leaming Oil cleaning device for automotive engines
US3993564A (en) * 1972-04-06 1976-11-23 Advanced Product Engineering Corporation Filtration apparatus
US3877906A (en) * 1972-04-06 1975-04-15 Carl R Peterson Filtration apparatus
US3882025A (en) * 1972-06-16 1975-05-06 Sweco Inc Wastewater concentrator with slotted distributor
US3959124A (en) * 1974-07-15 1976-05-25 Sweco, Inc. Method and apparatus for the activated sludge treatment of wastewater
GB1511693A (en) * 1975-04-24 1978-05-24 Jones & Attwood Ltd Apparatus for removing solid material from sewage or other liquid
GB8517762D0 (en) * 1985-07-15 1985-08-21 British Nuclear Fuels Plc Centrifuges
DE29510217U1 (en) * 1995-06-23 1995-09-07 Stegmann K H Filters for cleaning liquids
CN109133479B (en) * 2018-09-17 2021-10-15 四川盛年同缔实业有限公司 Sewage solid particle environmental protection processing apparatus
CA3077753A1 (en) * 2019-04-12 2020-10-12 Cameron Farms Hutterite Colony Fluid pumping apparatus and methods of use
CN111871046B (en) * 2020-07-20 2021-11-30 福建康宏股份有限公司 Soybean oil production is with cooling essence integrated device that strains
CN112973276B (en) * 2021-03-01 2022-05-24 浙江恒大数控装备有限公司 Digit control machine tool cutting fluid recovery system
CN113041685B (en) * 2021-03-26 2022-09-16 盐城师范学院 Lake water impurity treatment device
CN113244686B (en) * 2021-07-08 2021-09-17 潍坊科技学院 Solid-liquid separation device for processing vegetable straws

Also Published As

Publication number Publication date
GB1365078A (en) 1974-08-29
FR2095692A5 (en) 1972-02-11
DE2127053C3 (en) 1974-01-10
CA948118A (en) 1974-05-28
NL7107524A (en) 1971-12-03
BE767899A (en) 1971-11-03
SE378763B (en) 1975-09-15
CA948119A (en) 1974-05-28
CA982492A (en) 1976-01-27
US3627130A (en) 1971-12-14
CH538876A (en) 1973-07-15
DE2127053B2 (en) 1973-06-14
DE2127053A1 (en) 1971-12-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees