EP2135678A1 - Séparateur magnétique linéaire à courants de foucault - Google Patents

Séparateur magnétique linéaire à courants de foucault Download PDF

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Publication number
EP2135678A1
EP2135678A1 EP07730452A EP07730452A EP2135678A1 EP 2135678 A1 EP2135678 A1 EP 2135678A1 EP 07730452 A EP07730452 A EP 07730452A EP 07730452 A EP07730452 A EP 07730452A EP 2135678 A1 EP2135678 A1 EP 2135678A1
Authority
EP
European Patent Office
Prior art keywords
electric conductor
transport
eddy currents
rotor
magnetic separator
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.)
Withdrawn
Application number
EP07730452A
Other languages
German (de)
English (en)
Other versions
EP2135678A4 (fr
Inventor
Raimundo Gutierrez Iglesias
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.)
Felemamg SL
Original Assignee
Felemamg SL
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 Felemamg SL filed Critical Felemamg SL
Publication of EP2135678A1 publication Critical patent/EP2135678A1/fr
Publication of EP2135678A4 publication Critical patent/EP2135678A4/fr
Withdrawn legal-status Critical Current

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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
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/04—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables
    • B03C1/06—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables with magnets moving during operation
    • 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
    • B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
    • B03C1/18—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
    • 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 invention refers to a linear magnetic separator using eddy currents that adds, to the function already known of these separators, a series of advantages and characteristics, apart from those inherent to its organization and make-up, that will be described in detail further on, providing an alternative and/or innovating improvement to that already known in this field.
  • the object of the invention consists in a magnetic separator for metals under the principle of eddy currents, destined for the separation of electric conductor metals, aluminium, copper, etc., from a material that is not an electric conductor, particularly regarding low grain size, in which, as an advantage and in a characterising manner, the magnetic rotor is assembled in line with the direction of the moving material to be treated, providing a notable increase in its performance.
  • the separation of small metal particles, such as low grain size (0 to 3 m/m) aluminium or copper with a conventional magnetic separator using eddy currents, in which the material is presented by a belt over the magnetic rotor, is made by material launching the electric conductor material in the same direction from which the material arrives, extracting it from within the non-conductor material and being collected by a divider that separates it from the rest.
  • the particles tend to have a spherical shape and the currents generated tend to rotate the particle, which re-orientates itself thus avoiding the launching effect.
  • linear magnetic separator using eddy currents proposed by the invention constitutes in itself an clear novelty in its field since, with its application, it is possible to separate electric conductor metal particles with a size of only a few microns from a non-electric conductor material at high performance level.
  • the main innovation shown by the separator suggested by the invention consists in presenting the material to be treated over the rotor in the direction of its axis, completely in opposition to that known up to now, where the material to be treated is presented in perpendicular direction to that of the axis of the rotor.
  • the material is transported by means of a conveyor belt, a vibrating chute, a sloping plane or an alternative transporting element, running above the magnetic rotor in the same direction of its axis.
  • the small particles of conductor metals are launched in the opposite direction to the rotation of the magnetic rotor and they fall once more on the conveyor belt, once again subject to the strong alternating field generated by the rotor. Again they are launched once more, this effect repeating itself successively and rapidly while they continue being transported along the rotor.
  • the new linear magnetic separator using eddy currents represents an innovating structure, with structural and innovative characteristics unknown until now for this purpose, reasons which together with its practical utility, provide it with sufficient bases to obtain the privilege requested regarding exclusiveness.
  • this descriptive report includes, as an integral part of same, a set of plans, representing the following in an illustrative but not limiting manner:
  • the linear magnetic separator using eddy currents (1) suggested by the invention is essentially made up by a vibrating chute (2), manufactured out of a non-electric conductor material, such as laminated glass, wood, etc., in order for no heating due to the effect of eddy currents to occur, onto which the product or material to be treated (m) is fed at the input end (3).
  • This chute (2) by means of the action performed by the rotating vibrators (4) that includes, makes the material (m) advance over and in the direction of the axis (5) of the magnetic rotor (6), which rests appropriately on the bearing supports (7) and which, due to the action of the motor (8), rotates at high revolutions, generally between 1500 and 3000 revolutions per minute, being arranged in such a way for this, as seen in these figures, that the axis (5) is oriented in the same direction as that in which the material to be treated runs along on the conveyor belt element or chute (2).
  • the magnetic rotor (6) is formed by many longitudinal poles with alternating polarity, in such a way that a very strong, high frequency magnetic field is generated on the surface of the vibrating chute (2), that generates eddy currents in the mass of the electric conductor particles (m').
  • these currents generate a magnetic field in opposition to that of the rotor (6), forcing the particle (m') to rotate on itself to re-orientate itself or to be launched slightly in the opposite direction to the rotation of the rotor (6) due to repulsion.
  • the vibrating chute (2) has, as shown in figure 2-A in transversal cross-section, an area (2a) at a lower level, for the collection of the electric conductor magnetic particles (m'), in such a way that the conductor particles (m') are extracted from the material (m) being transported along the upper area (2b), either by rolling out or by means of short and successive launchings towards the collection area (2a) where they fall and continue advancing towards the end of the vibrating chute (2), where they are selectively collected by a channelling or collection element for this purpose (9), while the rest of the non-conductor material is collected by a different channelling or collection element (10).
  • FIGS 3-A, 3-B and 3-C show an alternative example or version of the linear magnetic separator using eddy currents (1), in which it can be seen how this separator (1) is basically the same as the one described above and shown in figures 2-A, 2-B y 2-C , the difference being that, in this case, it includes a textile or rubber conveyor belt (11) as transporting element to present the material (m) to the magnetic rotor (6).

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  • Sorting Of Articles (AREA)
EP07730452.5A 2007-04-11 2007-04-11 Séparateur magnétique linéaire à courants de foucault Withdrawn EP2135678A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2007/000212 WO2008125699A1 (fr) 2007-04-11 2007-04-11 Séparateur magnétique linéaire à courants de foucault

Publications (2)

Publication Number Publication Date
EP2135678A1 true EP2135678A1 (fr) 2009-12-23
EP2135678A4 EP2135678A4 (fr) 2013-05-08

Family

ID=39863294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730452.5A Withdrawn EP2135678A4 (fr) 2007-04-11 2007-04-11 Séparateur magnétique linéaire à courants de foucault

Country Status (2)

Country Link
EP (1) EP2135678A4 (fr)
WO (1) WO2008125699A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3336897A (en) * 1996-05-17 1997-12-09 Hubertus Exner Device and process for separating particles with a rotary magnet system
DE19804878A1 (de) * 1998-02-09 1999-08-12 Exner Hubertus Verfahren und Vorrichtung zur Trennung von unterschiedlich elektrisch leitfähigen Partikeln
ES2238889B1 (es) * 2002-12-17 2006-11-16 Claudino Jose Cardoso Saturnino Sistema de separacion de metales no ferricos.

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2008125699A1 *

Also Published As

Publication number Publication date
WO2008125699A1 (fr) 2008-10-23
EP2135678A4 (fr) 2013-05-08

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