ATE176608T1 - SYSTEM AND METHOD FOR SORTING BY MEANS OF A UNIFORM FLUIDIZED BED - Google Patents

SYSTEM AND METHOD FOR SORTING BY MEANS OF A UNIFORM FLUIDIZED BED

Info

Publication number
ATE176608T1
ATE176608T1 AT92921245T AT92921245T ATE176608T1 AT E176608 T1 ATE176608 T1 AT E176608T1 AT 92921245 T AT92921245 T AT 92921245T AT 92921245 T AT92921245 T AT 92921245T AT E176608 T1 ATE176608 T1 AT E176608T1
Authority
AT
Austria
Prior art keywords
fluidized bed
mixture
articles
density
medium
Prior art date
Application number
AT92921245T
Other languages
German (de)
Inventor
Arthur Zaltzman
Sylvester Lynn Woodland
Original Assignee
Camas Int Inc
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
Priority claimed from US07/764,691 external-priority patent/US5244099A/en
Application filed by Camas Int Inc filed Critical Camas Int Inc
Application granted granted Critical
Publication of ATE176608T1 publication Critical patent/ATE176608T1/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
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/02—Separating by pneumatic tables or by pneumatic jigs using swinging or shaking tables
    • 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
    • B03B5/46—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using dry heavy media; Devices therefor

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Sorting Of Articles (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

An apparatus (10) for providing a fluidized bed (12) to effect the separation of a mixture of articles (22) having a first density and a second density that is greater than the first density into separate groups. The apparatus (10) includes an inclined trough (12) which is supplied with either a fluidization medium, such as sand, or a mixture of articles (22) from which a fluidized bed is formed by forcing gas upwardly therethrough and through the bottom of the trough (12). Where a fluidization medium is used, the mixture of articles (22) is introduced into the fluidized bed medium so as to be entrained therewith to effect separation as the articles travel in the direction of flow of the fluidized bed medium. Essentially only vertical oscillatory movement is imparted to the trough to improve the separation and layering where the mixture is fluidized, or to improve the density uniformity where a fluidization medium is fluidized as the bed.
AT92921245T 1991-09-23 1992-09-23 SYSTEM AND METHOD FOR SORTING BY MEANS OF A UNIFORM FLUIDIZED BED ATE176608T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/764,691 US5244099A (en) 1989-06-28 1991-09-23 Apparatus and method for improving density uniformity of a fluidized bed medium, and/or for improved material fluidized bed sorting

Publications (1)

Publication Number Publication Date
ATE176608T1 true ATE176608T1 (en) 1999-02-15

Family

ID=25071476

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92921245T ATE176608T1 (en) 1991-09-23 1992-09-23 SYSTEM AND METHOD FOR SORTING BY MEANS OF A UNIFORM FLUIDIZED BED

Country Status (9)

Country Link
EP (1) EP0608293B1 (en)
JP (1) JPH07503887A (en)
AT (1) ATE176608T1 (en)
AU (1) AU656430B2 (en)
BR (1) BR9206532A (en)
CA (1) CA2119653C (en)
DE (1) DE69228425T2 (en)
DK (1) DK0608293T3 (en)
WO (1) WO1993005882A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019998A1 (en) * 2005-04-27 2006-11-02 Bühler AG Method for cleaning grain involves a mixed product being cleaned via being run through a light grain separator and drying cleaner
CN112934667A (en) * 2021-01-25 2021-06-11 山西农业大学 Simple and easy miscellaneous beans seed choice grading plant

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US76331A (en) * 1868-04-07 Improved appaeatus poe sepaeating gees and mineeals
US2273296A (en) * 1942-02-17 Apparatus and process for separat
US2006119A (en) * 1932-08-10 1935-06-25 Steinmetser Joseph Nicholas Apparatus for the separation of dry materials
US2154784A (en) * 1937-09-22 1939-04-18 Roberts & Schaefer Co Resistance pack for gravity separators and the like
US2310894A (en) * 1941-01-22 1943-02-09 Brusset Jean Albert Dry flotation, and media and apparatus therefor
US2678131A (en) * 1950-07-17 1954-05-11 Robert F Dore Dry concentrator
DE1102061B (en) * 1958-09-12 1961-03-16 Maerkische Steinkohlengewerksc Device for the calm discharge of heavy goods from jigging machines
GB1072233A (en) * 1962-12-17 1967-06-14 Coal Industry Patents Ltd Methods and apparatus for density separation of particulate material
US3424309A (en) * 1965-12-07 1969-01-28 William B Binnix Pneumatic separator and classifier apparatus and method
SE388132B (en) * 1971-10-28 1976-09-27 Deister Concentrator DETECTION DEVICE INCLUDING A SEPARATION TABLE
US4861464A (en) * 1987-05-29 1989-08-29 State Of Israel, Ministry Of Agriculture Method and apparatus for separation using fluidized bed
US4865722A (en) * 1987-09-01 1989-09-12 Max Ririe Method and apparatus for separation using fluidized bed
US5024334A (en) * 1989-06-09 1991-06-18 Iowa State University Research Foundation, Inc. Method and means for gravity table automation
US5118409A (en) * 1989-06-28 1992-06-02 Sddm, Inc. Apparatus and method for improving density uniformity of a fluidized bed medium, and/or for improving material fluidized bed sorting
US5048693A (en) * 1989-06-28 1991-09-17 World Agrosearch, Ltd. Method and apparatus for sorting articles with small density differences utilizing a flotation stream

Also Published As

Publication number Publication date
WO1993005882A1 (en) 1993-04-01
EP0608293A1 (en) 1994-08-03
EP0608293B1 (en) 1999-02-10
AU2757292A (en) 1993-04-27
BR9206532A (en) 1994-10-11
AU656430B2 (en) 1995-02-02
EP0608293A4 (en) 1995-04-19
DE69228425T2 (en) 1999-08-19
DK0608293T3 (en) 1999-09-20
CA2119653C (en) 1999-04-20
DE69228425D1 (en) 1999-03-25
CA2119653A1 (en) 1993-04-01
JPH07503887A (en) 1995-04-27

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