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WO1993009873A1 - Procede et dispositif de separation de fragments - Google Patents

Procede et dispositif de separation de fragments Download PDF

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Publication number
WO1993009873A1
WO1993009873A1 PCT/SE1992/000787 SE9200787W WO9309873A1 WO 1993009873 A1 WO1993009873 A1 WO 1993009873A1 SE 9200787 W SE9200787 W SE 9200787W WO 9309873 A1 WO9309873 A1 WO 9309873A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
fragments
conveying path
mixture
fragment mixture
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.)
Ceased
Application number
PCT/SE1992/000787
Other languages
English (en)
Inventor
Einar Andersson
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.)
Almhults Elektromekaniska Einar Andersson AB
Original Assignee
Almhults Elektromekaniska Einar Andersson 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 Almhults Elektromekaniska Einar Andersson AB filed Critical Almhults Elektromekaniska Einar Andersson AB
Publication of WO1993009873A1 publication Critical patent/WO1993009873A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/23—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
    • B03C1/24—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields
    • B03C1/247—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields obtained by a rotating magnetic drum
    • 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/20—Magnetic separation of bulk or dry particles in mixtures

Definitions

  • the present invention relates to a method for sepa ⁇ rating fragments of a non-magnetic metallic material, such j 5 as copper, from a mixture of such fragments and fragments of at least one other non-magnetic metallic material, such as lead.
  • the invention also concerns a device for imple ⁇ menting the method.
  • One object of the present invention is, therefore, to provide a method for effectively separating the fragments of a non-magnetic metallic material, such as copper, from a mixture of such fragments and fragments of at least one other non-magnetic metallic material, such as lead.
  • this object is achieved by a method of the above type, which is characterised by feeding the fragment mixture in the form of a thin layer along a conveying path ending at a discharge position located at the underside of a rotor having a substantially 30 horizontal axis and comprising juxtaposed axial permanent- j magnet rods of alternate polarity, the fragment mixture being fed in a direction substantially perpendicular to the axis of the rotor; and rotating the rotor in such a direction that it moves, at its underside, substantially 35 in the feeding direction of the fragment mixture.
  • Another object of the invention is to provide a simple device for implementing this method.
  • this object is achieved by a device which is characterised by a rotor having a substantially horizontal axis and comprising juxtaposed axial permanent-magnet rods of alternate polarity, and a feeding unit adapted to feed the fragment mixture in the form of a thin layer along a conveying path which is sub ⁇ stantially perpendicular to the axis of the rotor and ends at a discharge position located at the underside of the rotor.
  • the conveying path is a slide path con ⁇ nected to a vibrator for vibrating said path.
  • the illustrated device comprises a cylindrical rotor 1 having an outer iron jacket.
  • the rotor 1 is lying, i.e. has a horizontal axis, and is rotatable in the direction of the arrow PI by means provided therefor (not shown).
  • Permanent-magnet rods 2 of alternate polarity (N and S), extending axially along the entire rotor 1, are, at equal intervals, glued to the jacket over its entire circum- ference (and not just over a portion thereof, as shown in the drawing for the sake of simplicity).
  • the magnets 2 are of the type sometimes referred to as "supermagnets", and in this case are magnets marketed under the trade name "Neodymium".
  • a conveying path 3 extending in a substantially per ⁇ pendicular direction to the axis of the rotor 1, conveys a fragment mixture 4 in the direction indicated by the arrow P2, from a receiving position to a discharge position.
  • the conveying path 3 is a chan- nel forming a slide path slightly inclined in relation to the horizontal plane and connected to a vibrator 5 serving to vibrate the conveying path 3.
  • a funnel-shaped supply unit 6 is provided at the receiving position for discharg ⁇ ing, onto the conveying path 3, a mixture 4 of fragments
  • the fragment mixture 4 is transported in the form of a thin layer to the discharge position, which is defined by the downstream end 9 of the conveying path 3, this end being located at the underside of the rotor 1.
  • the downstream end 9 of the conveying path 3 is located straight below the axis of the rotor 1.
  • the downstream end 9 of the conveying path 3 may be situated slightly to the left (with regard to the drawing) of the illustrated position.
  • the conveying path 3 should not, however, extend beyond the lowest point of the rotor 1, i.e. the point located straight below the rotor axis.
  • the conveying path 3 is made of glass-fibre material, but may, of course, be made of another suitable material, such as plastics material, which is not affected by induc- tion (heated) during the rotation of the rotor 1.
  • a container 10 for collecting lead fragments 7 is placed below the downstream end 9 of the conveying path 3. Likewise, a container 11 for collecting copper fragments
  • the fragment mixture 4 is fed in a thin layer on the conveying path 3 vibrated by means of the vibrator 5. During the feeding operation, many of the fragments in the mixture 4 are kept suspended in the air owing to the vibrations, which facilitates the subsequent separation.
  • the rotor 1 is rotated at high speed (about 1, 500 rpm) in the direction indicated by the arrow PI. As is evident from the drawing, the direction of rotation PI at the underside of the rotor 1 substantially coincides with the feeding direction P2.
  • the lead fragments 7 drop into the container 10.
  • the copper fragments 8 are strongly affected by the magnetic field generated by the rotating rotor 1, and are flung further on in a substantially tangential direction so as to impinge upon a wall 11a of the con- tainer 11 and drop into this container 11.
  • the device according to the invention yields astonishing results, in that the frag ⁇ ments reaching the container 11 only contain a minute amount of lead and at least 96% of copper. It goes without saying that the inventive device is not restricted to the separation of copper and lead, but may be used for separating other non-magnetic metallic materials, such as lead and aluminium. Also, the device can be used for separating several different non-magnetic metallic materials from one another, e.g. lead, copper and aluminium. In the separation, advantage is then taken of the fact that the materials are affected differently by the magnetic field generated by the rotating rotor, and are thereby flung over different distances, to be collect- ed in different containers positioned at the particular flinging distance of each material.

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Abstract

L'on utilise, pour la séparation de fragments (7, 8) de deux matériaux métalliques non magnétiques tels que le cuivre et le plomb, compris dans un mélange (4) de fragments, un rotor (1) et un organe d'alimentation (3, 5) comprenant une voie d'acheminement (3) pratiquement perpendiculaire à l'axe du rotor (1). Le rotor (1) comprend des tiges axiales juxtaposées (2) à aimants permanents, et d'une polarité alternée. Le mélange de fragments (4) est alimenté sous forme d'une couche mince le long de la voie d'acheminement (3), et le rotor (1) est mis en rotation dans une direction (P1) qui permet à la partie inférieure du rotor de se déplacer sensiblement dans le sens d'alimentation (P2) du mélange de fragments.
PCT/SE1992/000787 1991-11-18 1992-11-17 Procede et dispositif de separation de fragments Ceased WO1993009873A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9103388-6 1991-11-18
SE9103388A SE468342B (sv) 1991-11-18 1991-11-18 Saett och anordning foer fragmentseparation

Publications (1)

Publication Number Publication Date
WO1993009873A1 true WO1993009873A1 (fr) 1993-05-27

Family

ID=20384344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000787 Ceased WO1993009873A1 (fr) 1991-11-18 1992-11-17 Procede et dispositif de separation de fragments

Country Status (3)

Country Link
AU (1) AU2959992A (fr)
SE (1) SE468342B (fr)
WO (1) WO1993009873A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317640A1 (de) * 1993-05-27 1994-12-08 Nsm Magnettechnik Gmbh Einrichtung zur Lagebeeinflussung von Teilen aus elektrisch leitenden, nicht-ferromagnetischen Materialien, insbesondere zum Transportieren und/oder Sortieren von solchen Teilen
FR2712208A1 (fr) * 1993-11-10 1995-05-19 Fcb Appareil pour séparer des particules électriquement conductrices d'un mélange de particules solides.
WO2001003844A1 (fr) * 1999-07-12 2001-01-18 Steinert Elektromagnetbau Gmbh Separateur et procede pour la separation d'une fraction contenant des metaux non ferreux provenant d'une preparation de ferrailles electronique
US6330946B1 (en) 1996-08-08 2001-12-18 Ka Pty Ltd. Apparatus and method for separating particles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388626A1 (fr) * 1989-03-01 1990-09-26 Lindemann Maschinenfabrik GmbH Appareil pour séparer des métaux non magnétisables d'un mélange de solides
EP0439983A2 (fr) * 1990-01-29 1991-08-07 ETS G. ANDRIN ET FILS (Société Anonyme) Séparateur magnétique de particules et morceaux en métal non-ferreux

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388626A1 (fr) * 1989-03-01 1990-09-26 Lindemann Maschinenfabrik GmbH Appareil pour séparer des métaux non magnétisables d'un mélange de solides
EP0439983A2 (fr) * 1990-01-29 1991-08-07 ETS G. ANDRIN ET FILS (Société Anonyme) Séparateur magnétique de particules et morceaux en métal non-ferreux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 83-710216/28, week 8328; & SU,A,956 012 (DNEPROPETROVSK ARTEM MIN), 7 Sept 1982. *
DERWENT'S ABSTRACT, No. 86-47648/07, week 8607; & SU,A,1 169 746 (DNEPROPETROVSK ARTEM MIN), 30 July 1985. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317640A1 (de) * 1993-05-27 1994-12-08 Nsm Magnettechnik Gmbh Einrichtung zur Lagebeeinflussung von Teilen aus elektrisch leitenden, nicht-ferromagnetischen Materialien, insbesondere zum Transportieren und/oder Sortieren von solchen Teilen
FR2712208A1 (fr) * 1993-11-10 1995-05-19 Fcb Appareil pour séparer des particules électriquement conductrices d'un mélange de particules solides.
US6330946B1 (en) 1996-08-08 2001-12-18 Ka Pty Ltd. Apparatus and method for separating particles
WO2001003844A1 (fr) * 1999-07-12 2001-01-18 Steinert Elektromagnetbau Gmbh Separateur et procede pour la separation d'une fraction contenant des metaux non ferreux provenant d'une preparation de ferrailles electronique

Also Published As

Publication number Publication date
SE9103388L (sv) 1992-12-21
SE468342B (sv) 1992-12-21
SE9103388D0 (sv) 1991-11-18
AU2959992A (en) 1993-06-15

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