SE0003680L - Method and apparatus for separating lighter particles from heavier particles in a liquid - Google Patents

Method and apparatus for separating lighter particles from heavier particles in a liquid

Info

Publication number
SE0003680L
SE0003680L SE0003680A SE0003680A SE0003680L SE 0003680 L SE0003680 L SE 0003680L SE 0003680 A SE0003680 A SE 0003680A SE 0003680 A SE0003680 A SE 0003680A SE 0003680 L SE0003680 L SE 0003680L
Authority
SE
Sweden
Prior art keywords
particles
heavier
sand
lighter
level
Prior art date
Application number
SE0003680A
Other languages
Swedish (sv)
Other versions
SE0003680D0 (en
SE518295C2 (en
Inventor
Hans Malm
Reinhold Radszuweit
Original Assignee
Laeckeby Water Ab
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 Laeckeby Water Ab filed Critical Laeckeby Water Ab
Priority to SE0003680A priority Critical patent/SE518295C2/en
Publication of SE0003680D0 publication Critical patent/SE0003680D0/en
Priority to AU2001294487A priority patent/AU2001294487A1/en
Priority to PCT/SE2001/002209 priority patent/WO2002030573A1/en
Publication of SE0003680L publication Critical patent/SE0003680L/en
Publication of SE518295C2 publication Critical patent/SE518295C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B11/00—Feed or discharge devices integral with washing or wet-separating 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
    • B01D21/02—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
    • B01D21/24—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
    • B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
    • 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
    • B01D21/245—Discharge mechanisms for the sediments
    • B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The invention relates to a method and an arrangement for the separation of lighter particles (10) from heavier particles (3) in a liquid medium, which contains lighter particles and heavier sinking particles which require to be washed, in particular sand, and in particular at sewage works in the incoming waste water, where the heavier particles are removed at the lower end of a vessel and the lighter particles are removed at a level above the outlet for the aforementioned heavier particles. In accordance with the invention the level in the vessel (13) of the process water intended for washing the sand (3) is varied, so that a hydraulic pressure difference is achieved and the sedimented lighter material (10) that is not intended to be washed can be removed by decanting for a predetermined period of time by causing rotation (20) of the lighter material (10) so that it makes its way towards the centre at a level (14) above the upper level (22) of the sand. Washing water (23) and/or other fluid for washing the sand is also supplied.
SE0003680A 2000-10-12 2000-10-12 Method and apparatus for separating lighter particles from heavier particles in a liquid SE518295C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0003680A SE518295C2 (en) 2000-10-12 2000-10-12 Method and apparatus for separating lighter particles from heavier particles in a liquid
AU2001294487A AU2001294487A1 (en) 2000-10-12 2001-10-11 A method and a device for treatment of medium
PCT/SE2001/002209 WO2002030573A1 (en) 2000-10-12 2001-10-11 A method and a device for treatment of medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003680A SE518295C2 (en) 2000-10-12 2000-10-12 Method and apparatus for separating lighter particles from heavier particles in a liquid

Publications (3)

Publication Number Publication Date
SE0003680D0 SE0003680D0 (en) 2000-10-12
SE0003680L true SE0003680L (en) 2002-04-13
SE518295C2 SE518295C2 (en) 2002-09-17

Family

ID=20281386

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003680A SE518295C2 (en) 2000-10-12 2000-10-12 Method and apparatus for separating lighter particles from heavier particles in a liquid

Country Status (3)

Country Link
AU (1) AU2001294487A1 (en)
SE (1) SE518295C2 (en)
WO (1) WO2002030573A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014183804A1 (en) * 2013-05-17 2014-11-20 Stigebrandt Hydroteknik Ab A separator and a method for separating solid particles from liquids

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415647C2 (en) * 1994-05-04 1996-10-02 Huber Hans Gmbh Maschinen Und Device for separating inorganic material contaminated with organic material from a liquid
DE19501034C2 (en) * 1995-01-16 1998-02-26 Huber Hans Gmbh Maschinen Und Device for separating floating and suspended matter from a liquid
DE19622962A1 (en) * 1996-06-07 1997-12-11 Gerd Meurer Abwassertechnik Gm Device for separating composite material suspended in liquid
DE19924164C2 (en) * 1999-02-18 2001-04-12 Bormet Maschb Gmbh Method and device for separating solids composed of organic and inorganic material from a liquid mixed with solids and for separating the inorganic material from the mixture of organic and inorganic material

Also Published As

Publication number Publication date
AU2001294487A1 (en) 2002-04-22
WO2002030573A1 (en) 2002-04-18
SE0003680D0 (en) 2000-10-12
SE518295C2 (en) 2002-09-17

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Legal Events

Date Code Title Description
NUG Patent has lapsed