GB484840A - Improvements in and relating to settling tanks - Google Patents

Improvements in and relating to settling tanks

Info

Publication number
GB484840A
GB484840A GB4864/37A GB486437A GB484840A GB 484840 A GB484840 A GB 484840A GB 4864/37 A GB4864/37 A GB 4864/37A GB 486437 A GB486437 A GB 486437A GB 484840 A GB484840 A GB 484840A
Authority
GB
United Kingdom
Prior art keywords
shaft
box
fixed
supported
pipes
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
GB4864/37A
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 GB4864/37A priority Critical patent/GB484840A/en
Publication of GB484840A publication Critical patent/GB484840A/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
    • B01D21/14—Settling tanks with multiple outlets for the separated liquids 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
    • B01D21/186—Construction of the scrapers or the driving mechanisms for settling tanks with two or more scrapers fixed at different heights on a central rotating shaft
    • 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
    • B01D21/2405—Feed 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
    • B01D21/2405—Feed mechanisms for settling tanks
    • B01D21/2416—Liquid distributors with a plurality of feed points
    • 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
    • B01D21/2433—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
    • B01D21/2433—Discharge mechanisms for floating particles
    • B01D21/2438—Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing 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

484,840. Gravity-separation apparatus. HARTLEY, E. Feb. 18, 1937, No. 4864. [Class 111] A settling-tank has a central distribution or deflector box 14 and sludge scrapers 25 or scumming means 26 carried and rotated by a central shaft 18 and the liquid is delivered to the box 14 through one or more fixed substantially horizontal pipes 13 with upwardly turned elbows 15. The box may be supported by radial stays 16 connected to a boss 17 on the shaft. Stays 19 support the pipes 13. When a single pipe 13 is used the shaft 18 may pass down through the lower end of the elbow 15, a flange on the shaft serving to support the outer end of the pipe. Alternatively the pipe or pipes 13 may deliver the liquid into a fixed upwardly-directed inner deflecting box, which is supported by a flanged member on the shaft. The shaft may be supported by a bottom toe-step bearing 20, such as described in Specification 458,884, [Group XXXIV], or by an overhead bearing fixed on girders 22. The scumming blade 26, which may have its outer end 26b inclined forwardly is attached to the box 14 and collects scum for discharge to a pocket 27. The Provisional Specification describes an arrangement in which the distributing box is formed in two parts, the upper part rotating with the central shaft and the lower part being fixed.
GB4864/37A 1937-02-18 1937-02-18 Improvements in and relating to settling tanks Expired GB484840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4864/37A GB484840A (en) 1937-02-18 1937-02-18 Improvements in and relating to settling tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4864/37A GB484840A (en) 1937-02-18 1937-02-18 Improvements in and relating to settling tanks

Publications (1)

Publication Number Publication Date
GB484840A true GB484840A (en) 1938-05-11

Family

ID=9785244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4864/37A Expired GB484840A (en) 1937-02-18 1937-02-18 Improvements in and relating to settling tanks

Country Status (1)

Country Link
GB (1) GB484840A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662335A1 (en) * 1994-01-07 1995-07-12 Degremont Improvements in or relating to trunkings for water recovery, particularly for decantation vessels
CN112619208A (en) * 2020-11-26 2021-04-09 北京国新智电新能源科技有限责任公司 Sewage disposal system for sewage treatment tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662335A1 (en) * 1994-01-07 1995-07-12 Degremont Improvements in or relating to trunkings for water recovery, particularly for decantation vessels
FR2714846A1 (en) * 1994-01-07 1995-07-13 Perrin Didier Improvements made to the liquid return spouts, especially for decanters.
CN112619208A (en) * 2020-11-26 2021-04-09 北京国新智电新能源科技有限责任公司 Sewage disposal system for sewage treatment tank

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