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GB1025206A - Method of and means for scraping rectangular tanks - Google Patents

Method of and means for scraping rectangular tanks

Info

Publication number
GB1025206A
GB1025206A GB26030/62A GB2603062A GB1025206A GB 1025206 A GB1025206 A GB 1025206A GB 26030/62 A GB26030/62 A GB 26030/62A GB 2603062 A GB2603062 A GB 2603062A GB 1025206 A GB1025206 A GB 1025206A
Authority
GB
United Kingdom
Prior art keywords
arms
stroke
during
scraper
tank
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
GB26030/62A
Inventor
Hubert Dozell Thatcher
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.)
Norstel and Templewood Hawksley Ltd
Original Assignee
Norstel and Templewood Hawksley Ltd
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 Norstel and Templewood Hawksley Ltd filed Critical Norstel and Templewood Hawksley Ltd
Priority to GB26030/62A priority Critical patent/GB1025206A/en
Priority to FR940475A priority patent/FR1396312A/en
Publication of GB1025206A publication Critical patent/GB1025206A/en
Expired 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
    • B01D21/10—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
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms 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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2433—Discharge mechanisms for floating particles
    • 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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Floating Material (AREA)

Abstract

1,025,206. Sludge removing scrapers. NORSTEL & TEMPLEWOOD HAWKSLEY Ltd. March 16, 1965, No. 26030/62. Heading B8E. Sludge is scraped into a well 50 of a settling tank 21 by a scraper 45 mounted on carriages reciprocated along the walls of the tank by chains 41 driven by sprockets 40. The arrangement is such that wheels 49 on arms 47 run on the bottom of the tank with the scraper engagement therewith during the operative stroke but the scraper mechanism is re-used by a cable 54, passing round a reeling drum, during the return stroke. A scumming board 60 is provided which is mounted on arms 64 in opposition to the arms 47 so as to skim the surface during the return stroke, while being spaced therefrom during the scraping stroke. In a modification, the arms 47 are mounted on a shaft which is counter-weighted, the raising and lowering being effected by a cam roller as the carriages are reciprocated. In another modification, the scumming board is lowered below the surface during the scraping stroke.
GB26030/62A 1962-07-06 1962-07-06 Method of and means for scraping rectangular tanks Expired GB1025206A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB26030/62A GB1025206A (en) 1962-07-06 1962-07-06 Method of and means for scraping rectangular tanks
FR940475A FR1396312A (en) 1962-07-06 1963-07-05 Method and apparatus for scraping containers, in particular for collecting sludge in rectangularies settling tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26030/62A GB1025206A (en) 1962-07-06 1962-07-06 Method of and means for scraping rectangular tanks

Publications (1)

Publication Number Publication Date
GB1025206A true GB1025206A (en) 1966-04-06

Family

ID=10237246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26030/62A Expired GB1025206A (en) 1962-07-06 1962-07-06 Method of and means for scraping rectangular tanks

Country Status (1)

Country Link
GB (1) GB1025206A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088579A1 (en) * 1999-10-01 2001-04-04 KRUMME, Friedrich Liquid container, in particular clarification plant tank and process for keeping a wall crown of the same ice-free

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088579A1 (en) * 1999-10-01 2001-04-04 KRUMME, Friedrich Liquid container, in particular clarification plant tank and process for keeping a wall crown of the same ice-free

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