GB729462A - Improvements in and relating to circular settling tanks - Google Patents

Improvements in and relating to circular settling tanks

Info

Publication number
GB729462A
GB729462A GB14773/52A GB1477352A GB729462A GB 729462 A GB729462 A GB 729462A GB 14773/52 A GB14773/52 A GB 14773/52A GB 1477352 A GB1477352 A GB 1477352A GB 729462 A GB729462 A GB 729462A
Authority
GB
United Kingdom
Prior art keywords
bridge
tank
scrapers
central
centre
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
GB14773/52A
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.)
Individual
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
Priority to GB14773/52A priority Critical patent/GB729462A/en
Publication of GB729462A publication Critical patent/GB729462A/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
    • B01D21/02—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
    • 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)
  • Centrifugal Separators (AREA)

Abstract

729,462. Gravity-separation apparatus. HARTLEY, C. J. July 10, 1953 [June 12, 1952], No. 14773/52. Class 111. A circular sludge sedimentation tank 10 having a central feed pipe 13 is divided by a skirt 21 into outer and inner zones 14, 17 between which sediment is transferred by scrapers 15 carried by a rotating bridge 16 supported on a central platform 20 above the tank ; the platform 20 being mounted on pillars 19 encircling the sludge zone 17 and carrying a central bearing 31 for a pivot 30 which is attached to the underside of the bridge and extends therethrough and drives scrapers 37 for discharging sediment from the steeply sloping floor of the zone 17 to a duct'18. The scrapers 37 are carried by arms 36 depending from crossarms 35 (not shown) secured to and driven by the pivot 30 which together with the bridge 16 is driven by gearing located either at the centre or the periphery of the tank. The bridge instead of spanning the whole tank may extend between the centre and the periphery where it runs on a circular track 41.
GB14773/52A 1952-06-12 1952-06-12 Improvements in and relating to circular settling tanks Expired GB729462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14773/52A GB729462A (en) 1952-06-12 1952-06-12 Improvements in and relating to circular settling tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14773/52A GB729462A (en) 1952-06-12 1952-06-12 Improvements in and relating to circular settling tanks

Publications (1)

Publication Number Publication Date
GB729462A true GB729462A (en) 1955-05-04

Family

ID=10047228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14773/52A Expired GB729462A (en) 1952-06-12 1952-06-12 Improvements in and relating to circular settling tanks

Country Status (1)

Country Link
GB (1) GB729462A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959152A (en) * 1973-12-28 1976-05-25 Dorr-Oliver Incorporated Traction-driven composite sludge raking mechanism for sedimentation tanks
US3959151A (en) * 1974-05-28 1976-05-25 Dorr-Oliver Incorporated Continuously operating sedimentation tank with pier supported rake structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959152A (en) * 1973-12-28 1976-05-25 Dorr-Oliver Incorporated Traction-driven composite sludge raking mechanism for sedimentation tanks
US3959151A (en) * 1974-05-28 1976-05-25 Dorr-Oliver Incorporated Continuously operating sedimentation tank with pier supported rake structure

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