GB1359019A - Thickener - Google Patents

Thickener

Info

Publication number
GB1359019A
GB1359019A GB4332471A GB4332471A GB1359019A GB 1359019 A GB1359019 A GB 1359019A GB 4332471 A GB4332471 A GB 4332471A GB 4332471 A GB4332471 A GB 4332471A GB 1359019 A GB1359019 A GB 1359019A
Authority
GB
United Kingdom
Prior art keywords
rake
motor
piston
load
hence
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
GB4332471A
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.)
Viridian Inc Canada
Original Assignee
Sherritt Gordon Mines 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 Sherritt Gordon Mines Ltd filed Critical Sherritt Gordon Mines Ltd
Publication of GB1359019A publication Critical patent/GB1359019A/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
    • B01D21/0018—Separation of suspended solid particles from liquids by sedimentation provided with a pump mounted in or on a settling tank
    • 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
    • B01D21/02—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
    • B01D21/20—Driving 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
    • B01D21/18—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
    • 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
    • B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
    • 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
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • 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
    • B01D21/30—Control equipment
    • 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
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1359019 Sedimentation tanks SHERRITT GORDON MINES Ltd 16 Sept 1971 [30 Sept 1970] 43325/71 Heading B1D [Also in Division G3] A settling apparatus comprises a tank 12 with inlet 42 via feed well 43, clarified liquid outlet 29 and sludge outlet 14, the tank having a conical interior bottom 28 and containing a rotary rake assembly 32. The rake assembly is mounted on a shaft 36 in bearings 35 so that it may both be rotated by fluid operated motor 50, and also may be raised or lowered vertically, by piston 63. The motor and piston are connected in a fluid circuit such that if the load on the rake assembly and hence the motor increases then the rake will be lifted vertically to lower the load thereon. Hence the vertical position of the rake is responsive to the load thereon. If the load on the rake increases then the motor 50 will slow and the pressure in the fluid supply line for the motor 52 will consequently increase. This will result in an increase of pressure at 66 below the piston and will hence raise the piston this having the effect of reducing the load on the rake and hence the pressure in the fluid supply line. A pressurised air source 68 is connected to the space 65 about the piston to act as a buffer and to force the piston and rake down if the pressure in the fluid supply line falls. The outgoing fluid from motor 50 is passed through a further hydraulic motor 60 which is coupled to diaphradgm pump 20 controlling the sludge outlet rate from the tank.
GB4332471A 1970-09-30 1971-09-16 Thickener Expired GB1359019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA94615 1970-09-30

Publications (1)

Publication Number Publication Date
GB1359019A true GB1359019A (en) 1974-07-03

Family

ID=4087687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4332471A Expired GB1359019A (en) 1970-09-30 1971-09-16 Thickener

Country Status (8)

Country Link
JP (1) JPS5410737B1 (en)
AU (1) AU469179B2 (en)
CA (1) CA899796A (en)
DE (1) DE2148875A1 (en)
FR (1) FR2108715A5 (en)
GB (1) GB1359019A (en)
OA (1) OA03916A (en)
ZA (1) ZA716299B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102671434A (en) * 2011-03-12 2012-09-19 江苏新宏大集团有限公司 Hydraulic driving device for thickener
CN113559568A (en) * 2021-06-25 2021-10-29 淮北市中芬矿山机器有限责任公司 Central transmission thickener with segmented automatic rake lifting mechanism

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399141B (en) * 1993-08-13 1995-03-27 Anlagenbau Franz Zierler METHOD AND DEVICE FOR SEPARATING SAND FROM WASTE WATER LOADED WITH SAND AND ORGANIC SUBSTANCES
US11011239B2 (en) 2018-12-27 2021-05-18 Kioxia Corporation Semiconductor memory
CN114849291A (en) * 2022-04-20 2022-08-05 陆懿范 Peripheral transmission sludge suction scraper for sewage treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102671434A (en) * 2011-03-12 2012-09-19 江苏新宏大集团有限公司 Hydraulic driving device for thickener
CN113559568A (en) * 2021-06-25 2021-10-29 淮北市中芬矿山机器有限责任公司 Central transmission thickener with segmented automatic rake lifting mechanism
CN113559568B (en) * 2021-06-25 2022-05-13 淮北市中芬矿山机器有限责任公司 Center drive thickener with segmented automatic rake lifting mechanism

Also Published As

Publication number Publication date
JPS5410737B1 (en) 1979-05-09
DE2148875A1 (en) 1972-04-06
AU469179B2 (en) 1976-02-05
OA03916A (en) 1975-08-14
CA899796A (en) 1972-05-09
ZA716299B (en) 1972-05-31
FR2108715A5 (en) 1972-05-19
AU3370571A (en) 1973-03-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee