GB496236A - Improvements in or relating to settling-tanks or thickeners - Google Patents

Improvements in or relating to settling-tanks or thickeners

Info

Publication number
GB496236A
GB496236A GB14778/37A GB1477837A GB496236A GB 496236 A GB496236 A GB 496236A GB 14778/37 A GB14778/37 A GB 14778/37A GB 1477837 A GB1477837 A GB 1477837A GB 496236 A GB496236 A GB 496236A
Authority
GB
United Kingdom
Prior art keywords
compartment
tank
shaft
arms
pipe
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
GB14778/37A
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
Publication of GB496236A publication Critical patent/GB496236A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • 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
    • 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
    • B01D21/2444—Discharge mechanisms for the classified liquid

Abstract

496,236. Gravity-separation apparatus; filters. WUENSCH, C. E. May 27, 1937, No. 14778. Convention date, May 28, 1936. [Class 46] Blades 20 which move matter settled on the floor of a tank to a central sump 3 are connected to radial arms 16 by members 44, hinged at either end, and brace rods 45, Fig. 2, threaded to receive nuts 46, 47, the arrangement being such that the blades adjust their inclination and vertical position in accordance with the load. The arms 16 are attached to a shaft 6 which extends upward through the bottom of the tank, joint being made by a mercury seal in a pan 12. The lower end of the shaft is supported in a bearing 7 and the shaft is driven by gearing 8, 9. The outer ends of the arms may be provided with wheels 18, which run on a track 19. The material under treatment is supplied to the tank by a launder 27. Scum is collected by a trough 33A, which is connected to one of the arms 16 by rods 29, 30 and supported by a float 34. The scum is discharged by a flexible pipe 36 into a receptacle 37, attached to the shaft 6, and withdrawn through a suction pipe 38. Filter cloth is arranged over the perforated wall 49 of an annular compartment 39 and liquid is filtered as it is discharged from the settling-tank through the compartment. The compartment has a vertical baffle 51, a pipe 40 for the discharge of liquid, and a pipe 41 through which air under pressure is supplied at intervals to detach the solid matter collecting on the filter cloth. The compartment 39 may be divided into independent segments. The Specification as open to inspection under Sect. 91 comprises also the provision of valves at the ends of the pipes 40, 41, which valves are operated automatically by a float in the compartment 49, and the augmentation of the available filtering area by the provision of hollow filtering leaves extending along within the wall 49, filtrate from the interior of the leaves being passed to the compartment 49. This subject-matter does not appear in the Specification as accepted.
GB14778/37A 1936-05-28 1937-05-27 Improvements in or relating to settling-tanks or thickeners Expired GB496236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US496236XA 1936-05-28 1936-05-28

Publications (1)

Publication Number Publication Date
GB496236A true GB496236A (en) 1938-11-28

Family

ID=21960800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14778/37A Expired GB496236A (en) 1936-05-28 1937-05-27 Improvements in or relating to settling-tanks or thickeners

Country Status (2)

Country Link
FR (1) FR496236A (en)
GB (1) GB496236A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063697A1 (en) * 1981-04-02 1982-11-03 Gebr. Bellmer GmbH & Co. KG Structure to be built-in in clarification tanks
EP0311763A2 (en) * 1987-10-12 1989-04-19 Passavant-Werke Ag Sedimentation tank for water and waste water purification
WO1990001982A2 (en) * 1988-08-17 1990-03-08 Richard Totzke Maschinen- Und Apparatebau Gmbh & Co. Device for removing bottom sludge and/or floating sludge from circular settling basins
US4994187A (en) * 1988-08-17 1991-02-19 Richard Totzke Mashinen- Und Apparatebaue Gmbh Apparatus for removing sewage sludge from the bottom or the surface in a settling basin
GB2273446A (en) * 1992-12-18 1994-06-22 Interlink Equipment Limited Settling tank with rotary scrapers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063697A1 (en) * 1981-04-02 1982-11-03 Gebr. Bellmer GmbH & Co. KG Structure to be built-in in clarification tanks
EP0311763A2 (en) * 1987-10-12 1989-04-19 Passavant-Werke Ag Sedimentation tank for water and waste water purification
EP0311763A3 (en) * 1987-10-12 1989-07-05 Passavant-Werke Ag Sedimentation tank for water and waste water
WO1990001982A2 (en) * 1988-08-17 1990-03-08 Richard Totzke Maschinen- Und Apparatebau Gmbh & Co. Device for removing bottom sludge and/or floating sludge from circular settling basins
WO1990001982A3 (en) * 1988-08-17 1990-05-03 Totzke Richard Masch Device for removing bottom sludge and/or floating sludge from circular settling basins
US4994187A (en) * 1988-08-17 1991-02-19 Richard Totzke Mashinen- Und Apparatebaue Gmbh Apparatus for removing sewage sludge from the bottom or the surface in a settling basin
GB2273446A (en) * 1992-12-18 1994-06-22 Interlink Equipment Limited Settling tank with rotary scrapers

Also Published As

Publication number Publication date
FR496236A (en) 1919-10-30

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