GB1334248A - Method and apparatus for separating objects accordint to density - Google Patents

Method and apparatus for separating objects accordint to density

Info

Publication number
GB1334248A
GB1334248A GB5805570A GB5805570A GB1334248A GB 1334248 A GB1334248 A GB 1334248A GB 5805570 A GB5805570 A GB 5805570A GB 5805570 A GB5805570 A GB 5805570A GB 1334248 A GB1334248 A GB 1334248A
Authority
GB
United Kingdom
Prior art keywords
water
zone
objects
fluid
air
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
GB5805570A
Inventor
J J-C Hsieh
J F Cline
H A Kornberg
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.)
Battelle Development Corp
Original Assignee
Battelle Development Corp
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 Battelle Development Corp filed Critical Battelle Development Corp
Publication of GB1334248A publication Critical patent/GB1334248A/en
Expired legal-status Critical Current

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
    • B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
    • B03B13/005—Methods or arrangements for controlling the physical properties of heavy media, e.g. density, concentration or viscosity
    • 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
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • 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
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/36—Devices therefor, other than using centrifugal force
    • B03B5/40—Devices therefor, other than using centrifugal force of trough type
    • 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
    • B03B5/623—Upward current classifiers
    • 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
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/36—Devices therefor, other than using centrifugal force
    • B03B5/40—Devices therefor, other than using centrifugal force of trough type
    • B03B2005/405—Devices therefor, other than using centrifugal force of trough type using horizontal currents

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Physical Water Treatments (AREA)

Abstract

1334248 Separation of solids of different densities BATTELLE DEVELOPMENT CORP 7 Dec 1970 [4 Feb 1970] 58055/70 Heading B2H Objects are separated according to density by placing the objects in a fluid contained in a vessel, the density of the fluid being such that the objects take up substantially the same horizontal level in the vessel, and changing the effective density of a portion of the fluid to a value intermediate the densities of the objects to effect in said portion the separation between said objects based upon the buoyancy of the respective objects. The fluid may be a liquid (examples of which are given) or a gas and may have its effective density varied by one of a number of means including temperature and/or pressure variations, addition of chemicals soluble in the fluid, dilution with a lighter or heavier fluid, injection of immiscible fluids into the fluid, electrolysis &c. Numerous examples of the types of objects that may be separated are given. In one example of apparatus used for separating various types of refuse materials, a tank 32 containing water has a heavy material settling zone 42, an air-water mixture zone 46 in which air, introduced through an air bubble generator 34 is mixed with the water to reduce its effective density, and a quiescent zone 51. The bubble generator may have a porous structure made of a sintered material such as a fritted glass disc or a sintered stainless steel or copper plate. The refuse materials are introduced into the tank through a feeder 44. The heavy material sinks into the zone 42 and is removed by a conveyor 43. The lighter materials 47 which float on the water are transported by the flow of water provided by water inlet 39 to the zone 46. In zone 46 material leaving a specific gravity less than that of the air-water mixture remains afloat and is removed by a conveyor 50. Material 49 having a greater specific gravity sinks to a certain extent in the air-water mixture and is transported by the flow of water to the quiescent zone 51 where it regains positive buoyancy, rises to the surface of the water and is discharged over a weir 53 on to a screen 54 where the water is drained and returned to the tank through the inlet 32. More than one air-water mixture zone having various ratios of air to water in the mixture may be used to provide a more complete split of the materials according to density. A simple form of apparatus without a heavy material settling zone is described.
GB5805570A 1970-02-04 1970-12-07 Method and apparatus for separating objects accordint to density Expired GB1334248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00008467A US3822015A (en) 1970-02-04 1970-02-04 Separation of solids by varying the bulk density of a fluid separating medium

Publications (1)

Publication Number Publication Date
GB1334248A true GB1334248A (en) 1973-10-17

Family

ID=21731765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5805570A Expired GB1334248A (en) 1970-02-04 1970-12-07 Method and apparatus for separating objects accordint to density

Country Status (8)

Country Link
US (1) US3822015A (en)
JP (1) JPS505815B1 (en)
CA (1) CA930333A (en)
CH (1) CH521794A (en)
DE (1) DE2056130A1 (en)
FR (1) FR2079225B1 (en)
GB (1) GB1334248A (en)
SE (1) SE375247B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039534A (en) * 1990-06-22 1991-08-13 The Pillsbury Company Pea separating apparatus and method of use
CN102327890A (en) * 2011-09-19 2012-01-25 东莞市康达机电工程有限公司 Restaurant-kitchen garbage sorting system
GB2574646A (en) * 2018-06-14 2019-12-18 Doppstadt Familienholding Gmbh Hydraulic density separator
CN112403662A (en) * 2020-11-04 2021-02-26 王学金 Chip separation stirring device of numerical control machine tool

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1472039A (en) * 1974-03-25 1977-04-27 Mitsui Mining & Smelting Co Method for separating a plastics-containing mixture
US3971474A (en) * 1975-03-05 1976-07-27 Recor, Inc. Method and apparatus for sorting and classifying metallic cans
US4111798A (en) * 1976-11-30 1978-09-05 Battelle Development Corporation Separation of solids by varying the bulk density of a fluid separating medium
US4376700A (en) * 1979-06-26 1983-03-15 Bethlehem Steel Corporation Method for beneficiating coal ore
US4352732A (en) * 1980-01-23 1982-10-05 Kelsey-Hayes Co. Flotation system
FR2485397A1 (en) * 1980-06-25 1981-12-31 Fives Cail Babcock METHOD FOR REGULATING THE AMPLITUDE OF PULSATION IN A PNEUMATIC PICK-UP BIN, AND PISTONING BAGS USING SAID METHOD
US4375264A (en) * 1981-05-19 1983-03-01 Doxsee Food Corp. Method and apparatus for segregating and separately recovering solids of different densities
US4772398A (en) * 1986-02-13 1988-09-20 Sando Iron Works Co., Ltd. Method for treatment of waste water and its apparatus
US5110454A (en) * 1988-01-19 1992-05-05 Recovery Systems Technology, Inc. Apparatus for reclaiming gravel, soil particles and wood pieces from a mixture of the same
US4882068A (en) * 1988-05-02 1989-11-21 Parkson Corporation Method and apparatus for removing liquid from suspensions
GB9021353D0 (en) * 1990-10-01 1990-11-14 Breach John R Sorting by size
US5126058A (en) * 1991-01-29 1992-06-30 University Of Pittsburgh Separation of physically co-mingled plastics using a supercritical fluid to facilitate recycling
US5248045A (en) * 1991-12-12 1993-09-28 The Coca-Cola Company Method and apparatus for uncasing and sorting bottles
US5305888A (en) * 1992-07-27 1994-04-26 Meylor Donald M Fruit/vegetable floatation grading
US5370236A (en) * 1993-06-14 1994-12-06 Vanmark Corporation Separator device to separate dense particulate matter from less dense particulate matter
FR2725590B1 (en) * 1994-10-12 1997-01-17 Cotentin Legumiere PROCESS AND INSTALLATION FOR CLEANING PEELED SALADS AND ELIMINATING SMALL FOREIGN BODIES
US6213308B1 (en) 1997-03-11 2001-04-10 Recot, Inc. System for debris elimination and item separation and method of use thereof
US7007806B2 (en) * 1997-03-18 2006-03-07 The Penn State Research Foundation Method and apparatus for separating a protein membrane and shell material in waste egg shells
TR199902255T2 (en) * 1997-03-18 2002-11-21 The Penn State Research Fundation Waste eggshell recovery.
BR0013862B1 (en) 1999-09-10 2011-03-22 dewatering apparatus for separating substantially liquid from a stream of flowing liquid and dragging solid items therein.
FR2808788B1 (en) * 2000-05-09 2002-09-27 Pescia Antonio Crovara FORCED IMMERSION HANDLE OF AN ARTICLE
FI112041B (en) * 2000-08-02 2003-10-31 Bjarne Holmbom A method for recovering knotweed material from oversized chips
US20090308550A1 (en) * 2008-06-16 2009-12-17 Weyerhaeuser Co. Pin chip recovery
DE102009025843B4 (en) 2009-05-19 2022-11-17 Kronen Gmbh Device and method for separating plant parts
JP2011011143A (en) * 2009-07-02 2011-01-20 Kyowa Sangyo Kk Waste material supply device in specific gravity liquid sorter of waste material, and the specific gravity liquid sorter of waste material equipped with the waste material supply device
WO2012019101A2 (en) 2010-08-06 2012-02-09 Berry Plastics Corporation Separation process for plastics materials
DE102010044490A1 (en) * 2010-09-06 2012-03-08 Siegfried Thoma Method for flavoring honey
US9412050B2 (en) * 2010-10-12 2016-08-09 Ncr Corporation Produce recognition method
EP2452578B1 (en) 2010-11-12 2014-11-05 Kronen GmbH Method and device for separating plant parts
US8919569B2 (en) * 2012-10-12 2014-12-30 Cargill, Incorporated Method and apparatus for reducing aflatoxin-contaminated corn
PL2910481T3 (en) * 2014-02-24 2016-07-29 Ltw Intralogistics Gmbh Method for partial emptying of buoyant objects and device for carrying out the method
WO2016028163A1 (en) * 2014-08-19 2016-02-25 Compac Technologies Limited A singulation apparatus
CN105921255A (en) * 2016-06-23 2016-09-07 云南翰林仁泽环保工程有限公司 Hydraulic separating all-in-one machine for garbage
US10987699B2 (en) * 2016-11-08 2021-04-27 Jesús Sánchez Rodríguez Density separator for waste material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763801C (en) * 1935-12-15 1953-08-31 Fried Krupp A G Process and device for processing coal, ores and other solid materials of various weights
US2426398A (en) * 1944-08-08 1947-08-26 Frank L Lathrop Gravity liquid separator for potatoes
US2620069A (en) * 1948-10-19 1952-12-02 Karl R Wendt Method of and apparatus for separating materials of different specific gravity
US2697384A (en) * 1950-01-14 1954-12-21 Paper Patents Co Process for removing dirt from wood pulp
US2813074A (en) * 1954-08-23 1957-11-12 Infilco Inc Clarifying apparatus and process
US3202285A (en) * 1961-08-08 1965-08-24 Frederick P Williams Sewage treatment structures
US3478875A (en) * 1966-09-27 1969-11-18 James H Roberts Method and apparatus for separating nut meats from shells

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039534A (en) * 1990-06-22 1991-08-13 The Pillsbury Company Pea separating apparatus and method of use
CN102327890A (en) * 2011-09-19 2012-01-25 东莞市康达机电工程有限公司 Restaurant-kitchen garbage sorting system
GB2574646A (en) * 2018-06-14 2019-12-18 Doppstadt Familienholding Gmbh Hydraulic density separator
CN112403662A (en) * 2020-11-04 2021-02-26 王学金 Chip separation stirring device of numerical control machine tool

Also Published As

Publication number Publication date
JPS505815B1 (en) 1975-03-07
FR2079225B1 (en) 1976-02-06
CA930333A (en) 1973-07-17
US3822015A (en) 1974-07-02
SE375247B (en) 1975-04-14
CH521794A (en) 1972-04-30
FR2079225A1 (en) 1971-11-12
DE2056130A1 (en) 1971-08-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee