GB2314033A - Rotating Screen and Drive Unit - Google Patents

Rotating Screen and Drive Unit

Info

Publication number
GB2314033A
GB2314033A GB9718595A GB9718595A GB2314033A GB 2314033 A GB2314033 A GB 2314033A GB 9718595 A GB9718595 A GB 9718595A GB 9718595 A GB9718595 A GB 9718595A GB 2314033 A GB2314033 A GB 2314033A
Authority
GB
United Kingdom
Prior art keywords
liquid
outlet
housing
vanes
retained
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.)
Granted
Application number
GB9718595A
Other versions
GB9718595D0 (en
GB2314033B (en
Inventor
Anthony Paul Buckley
Nicholas Jason John Preston
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.)
United Utilities PLC
Original Assignee
United Utilities PLC
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 United Utilities PLC filed Critical United Utilities PLC
Publication of GB9718595D0 publication Critical patent/GB9718595D0/en
Publication of GB2314033A publication Critical patent/GB2314033A/en
Application granted granted Critical
Publication of GB2314033B publication Critical patent/GB2314033B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward 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
    • B01D33/44—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
    • B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes
    • 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
    • B01D33/74—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
    • B01D33/742—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate 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
    • B01D33/80—Accessories
    • B01D33/801—Driving means, shaft packing systems or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A liquid filtering apparatus for use in, for example, storm water overflows of sewage systems. A cylindrical liquid permeable screen is supported in a housing so as to obstruct the passage of solids of greater than a predetermined size from an inlet of the housing to an outlet of the housing. The screen is rotable about a horizontal axis and its interior is drained by the outlet from the housing. The exterior of the body is at least partially submerged by the liquid to be filtered, and the body supports internal vanes arranged such that it is driven in rotation by the filtered liquid. The interior of the body is partitioned by the vanes into a series of sections arranged relative to the outlet such that for any given rotational position of the body liquid is retained in at least one of the submerged sections as a result of one or more of the vanes preventing liquid flowing from that section to the outlet. The weight of liquid retained by the vanes applies a torque to the body to cause it to rotate.
GB9718595A 1995-03-04 1996-03-04 Rotating Screen and Drive Unit Expired - Lifetime GB2314033B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9504364.2A GB9504364D0 (en) 1995-03-04 1995-03-04 Liquid filter
PCT/GB1996/000473 WO1996027422A1 (en) 1995-03-04 1996-03-04 Rotating screen and drive unit

Publications (3)

Publication Number Publication Date
GB9718595D0 GB9718595D0 (en) 1997-11-05
GB2314033A true GB2314033A (en) 1997-12-17
GB2314033B GB2314033B (en) 1998-06-24

Family

ID=10770641

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9504364.2A Pending GB9504364D0 (en) 1995-03-04 1995-03-04 Liquid filter
GB9718595A Expired - Lifetime GB2314033B (en) 1995-03-04 1996-03-04 Rotating Screen and Drive Unit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9504364.2A Pending GB9504364D0 (en) 1995-03-04 1995-03-04 Liquid filter

Country Status (3)

Country Link
AU (1) AU4839996A (en)
GB (2) GB9504364D0 (en)
WO (1) WO1996027422A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0122074D0 (en) * 2001-09-12 2001-10-31 Copa Ltd Filtering apparatus
CN102372387A (en) * 2011-09-30 2012-03-14 重庆市财信环保投资股份有限公司 Advanced treatment process of municipal wastewater
GB2612497B (en) * 2020-08-12 2024-08-07 Contech Eng Solutions Llc Stormwater treatment device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB236720A (en) * 1924-06-19 1925-07-16 Robert Percy Douglas Improved apparatus for separating liquids from granulated substances
US2223104A (en) * 1939-02-28 1940-11-26 Hansen Earl Rotary screen
US3291313A (en) * 1963-10-08 1966-12-13 Davis Welding & Blacksmith Sho Suction pipe strainer
DE2505565A1 (en) * 1975-02-10 1976-08-26 Zell I W J Krueckels Maschf Suspension sieved through revolving microsieve drum with inward flow - and internal jets to loosen solids from outside of drum
DE3637216C1 (en) * 1986-10-31 1988-05-11 Krause Hans Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing medium

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106003B (en) * 1981-09-17 1985-10-16 William Henry Taylor Griffin Flow powered rotary screen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB236720A (en) * 1924-06-19 1925-07-16 Robert Percy Douglas Improved apparatus for separating liquids from granulated substances
US2223104A (en) * 1939-02-28 1940-11-26 Hansen Earl Rotary screen
US3291313A (en) * 1963-10-08 1966-12-13 Davis Welding & Blacksmith Sho Suction pipe strainer
DE2505565A1 (en) * 1975-02-10 1976-08-26 Zell I W J Krueckels Maschf Suspension sieved through revolving microsieve drum with inward flow - and internal jets to loosen solids from outside of drum
DE3637216C1 (en) * 1986-10-31 1988-05-11 Krause Hans Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing medium

Also Published As

Publication number Publication date
AU4839996A (en) 1996-09-23
GB9504364D0 (en) 1995-04-26
GB9718595D0 (en) 1997-11-05
GB2314033B (en) 1998-06-24
WO1996027422A1 (en) 1996-09-12

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20160303