CA2501076A1 - Clarifier cover - Google Patents

Clarifier cover Download PDF

Info

Publication number
CA2501076A1
CA2501076A1 CA002501076A CA2501076A CA2501076A1 CA 2501076 A1 CA2501076 A1 CA 2501076A1 CA 002501076 A CA002501076 A CA 002501076A CA 2501076 A CA2501076 A CA 2501076A CA 2501076 A1 CA2501076 A1 CA 2501076A1
Authority
CA
Canada
Prior art keywords
clarifier
trusses
flexible sheet
wall
angle
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
CA002501076A
Other languages
French (fr)
Other versions
CA2501076C (en
Inventor
Brian R. Maclean
Brent M. Howe
Claude J. Degarie
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.)
Evoqua Water Technologies Canada Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2501076A1 publication Critical patent/CA2501076A1/en
Application granted granted Critical
Publication of CA2501076C publication Critical patent/CA2501076C/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
    • 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
    • B01D21/0003—Making of sedimentation devices, structural details thereof, e.g. prefabricated parts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Tents Or Canopies (AREA)

Abstract

In the present invention, there is provided a removable cover for retaining off-gases inside a clarifier. The cover comprises trusses extending across the clarifier and a flexible sheet laid across the trusses. Structural angle s enclose the clarifier and constitute a kick plate on the walkways around the clarifier for improving the safety of workers. One side of the flexibly shee t is permanently affixed to a first wall of the clarifier. A series of pullers are mounted inside the structural angles for pulling and releasably sealing the three other sides of the flexible sheet against the outmost trusses and against a second wall of the clarifier opposite the first wall. Each pulled has a cable-deflector bar extending substantially at a same level as a mounting surface of the pulley for increasing an angle of downward pull on the flexible sheet. The flexible sheet is rolled-up along the trusses to expose machinery inside the clarifier.
CA002501076A 2002-04-12 2002-04-12 Clarifier cover Expired - Lifetime CA2501076C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002381602A CA2381602C (en) 2002-04-12 2002-04-12 Clarifier cover

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002381602A Division CA2381602C (en) 2002-04-12 2002-04-12 Clarifier cover

Publications (2)

Publication Number Publication Date
CA2501076A1 true CA2501076A1 (en) 2003-10-12
CA2501076C CA2501076C (en) 2008-02-12

Family

ID=4171137

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002381602A Expired - Lifetime CA2381602C (en) 2002-04-12 2002-04-12 Clarifier cover
CA002501076A Expired - Lifetime CA2501076C (en) 2002-04-12 2002-04-12 Clarifier cover

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002381602A Expired - Lifetime CA2381602C (en) 2002-04-12 2002-04-12 Clarifier cover

Country Status (2)

Country Link
AU (1) AU758712B1 (en)
CA (2) CA2381602C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112642180A (en) * 2019-10-10 2021-04-13 上海展冀膜结构有限公司 Translational membrane cover for sewage pool
US11465075B2 (en) 2019-08-14 2022-10-11 Industrial & Environmental Concepts, Inc. Flexible launder covers and related methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257132A (en) * 1978-08-25 1981-03-24 Kerby Frederick A Collapsible pool cover assembly
FR2582227B1 (en) * 1985-05-23 1988-04-01 Labarthe Benoit De DEVICE FOR COVERING OR DISCOVERING A SURFACE BY MEANS OF A COVER
US5038517A (en) * 1989-05-19 1991-08-13 Talbott Gene B Greenhouse construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11465075B2 (en) 2019-08-14 2022-10-11 Industrial & Environmental Concepts, Inc. Flexible launder covers and related methods
US20230007841A1 (en) * 2019-08-14 2023-01-12 Industrial & Environmental Concepts, Inc. Flexible Launder Covers and Related Methods
US11786844B2 (en) * 2019-08-14 2023-10-17 Industrial & Environmental Concepts, Inc. Flexible launder covers and related methods
CN112642180A (en) * 2019-10-10 2021-04-13 上海展冀膜结构有限公司 Translational membrane cover for sewage pool

Also Published As

Publication number Publication date
CA2381602C (en) 2005-05-17
AU758712B1 (en) 2003-03-27
CA2501076C (en) 2008-02-12
CA2381602A1 (en) 2003-10-12

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20220412