FR2429610A1 - Circular settling tank with central sump and sludge scraper - coupled to rotary, diametral bridge by torque metal transmission - Google Patents

Circular settling tank with central sump and sludge scraper - coupled to rotary, diametral bridge by torque metal transmission

Info

Publication number
FR2429610A1
FR2429610A1 FR7820088A FR7820088A FR2429610A1 FR 2429610 A1 FR2429610 A1 FR 2429610A1 FR 7820088 A FR7820088 A FR 7820088A FR 7820088 A FR7820088 A FR 7820088A FR 2429610 A1 FR2429610 A1 FR 2429610A1
Authority
FR
France
Prior art keywords
torque
bridge
sump
scraper
rotary
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
FR7820088A
Other languages
French (fr)
Other versions
FR2429610B1 (en
Inventor
Jean Le Fur
Serge Boucher
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.)
Suez International SAS
Original Assignee
Degremont SA
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 Degremont SA filed Critical Degremont SA
Priority to FR7820088A priority Critical patent/FR2429610A1/en
Publication of FR2429610A1 publication Critical patent/FR2429610A1/en
Application granted granted Critical
Publication of FR2429610B1 publication Critical patent/FR2429610B1/fr
Granted 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
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating 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
    • B01D21/22—Safety 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
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

Vertical, cylindrical, upflow settling tank has a diametral rotary bridge and a central annular sump for sludge collection. The bridge transmits rotary motion to a tank bottom rake as well as a sump scraper. The rake is rigidly coupled to the bridge which now transmits torque to the sump scraper via a torque meter. The torque meter pref. provides an electric signal proportional to transmitted torque. The torque meter is pref. fitted between two coaxial coupling flanges each fixed to one of a pair of bearing rings. This permits slight relative rotation of the bridge w.r.t. the scraper mounting, but no relative axial or angular displacement. The torque meter is pref. attached to each coupling flange with a pivotal mounting. Torque overload on the sump scraper is prevented. The torque on the sump scraper is measured independently of the torque required to turn the bridge. When the latter is measured, it is possible also to determine the torque required to operate the tank bottom rake.
FR7820088A 1978-06-26 1978-06-26 Circular settling tank with central sump and sludge scraper - coupled to rotary, diametral bridge by torque metal transmission Granted FR2429610A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7820088A FR2429610A1 (en) 1978-06-26 1978-06-26 Circular settling tank with central sump and sludge scraper - coupled to rotary, diametral bridge by torque metal transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820088A FR2429610A1 (en) 1978-06-26 1978-06-26 Circular settling tank with central sump and sludge scraper - coupled to rotary, diametral bridge by torque metal transmission

Publications (2)

Publication Number Publication Date
FR2429610A1 true FR2429610A1 (en) 1980-01-25
FR2429610B1 FR2429610B1 (en) 1984-12-28

Family

ID=9210359

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820088A Granted FR2429610A1 (en) 1978-06-26 1978-06-26 Circular settling tank with central sump and sludge scraper - coupled to rotary, diametral bridge by torque metal transmission

Country Status (1)

Country Link
FR (1) FR2429610A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000120A1 (en) * 1994-06-24 1996-01-04 Passavant-Werke Ag Preliminary boom for clearing sludge from the surface of a sewage basin
CN103949449A (en) * 2014-04-28 2014-07-30 李培培 Scraper mounting device for small mud scraper
GB2513889A (en) * 2013-05-09 2014-11-12 A & J Water Treat Ltd Settlement Tank
GB2560918A (en) * 2017-03-27 2018-10-03 Cde Global Ltd Portable waste water treatment apparatus
CN113041668A (en) * 2021-03-16 2021-06-29 华能南京金陵发电有限公司 Anti-blocking method for mud scraper of power plant wastewater concentration treatment tank

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000120A1 (en) * 1994-06-24 1996-01-04 Passavant-Werke Ag Preliminary boom for clearing sludge from the surface of a sewage basin
GB2513889A (en) * 2013-05-09 2014-11-12 A & J Water Treat Ltd Settlement Tank
GB2513889B (en) * 2013-05-09 2016-06-29 A&J Water Treat Ltd Settlement Tank
CN103949449A (en) * 2014-04-28 2014-07-30 李培培 Scraper mounting device for small mud scraper
CN103949449B (en) * 2014-04-28 2016-05-25 周玉红 A kind of scraper erecting device of small-sized mud scraper
GB2560918A (en) * 2017-03-27 2018-10-03 Cde Global Ltd Portable waste water treatment apparatus
CN113041668A (en) * 2021-03-16 2021-06-29 华能南京金陵发电有限公司 Anti-blocking method for mud scraper of power plant wastewater concentration treatment tank

Also Published As

Publication number Publication date
FR2429610B1 (en) 1984-12-28

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