EP0063755A1 - Device for the separation of magnetisable substances from a mixture of magnetisable and non-magnetisable substances - Google Patents

Device for the separation of magnetisable substances from a mixture of magnetisable and non-magnetisable substances Download PDF

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Publication number
EP0063755A1
EP0063755A1 EP82103194A EP82103194A EP0063755A1 EP 0063755 A1 EP0063755 A1 EP 0063755A1 EP 82103194 A EP82103194 A EP 82103194A EP 82103194 A EP82103194 A EP 82103194A EP 0063755 A1 EP0063755 A1 EP 0063755A1
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European Patent Office
Prior art keywords
traveling field
magnetisable
vibrating table
laminated core
substances
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EP82103194A
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German (de)
French (fr)
Inventor
Walter Dipl.-Ing. Meintrup
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Siemens AG
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Siemens AG
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    • 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
    • B03C1/253—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 linear motor

Definitions

  • the invention relates to a device for separating magnetisable substances from a mixture containing magnetisable and non-magnetisable substances by means of an electromagnet system producing a traveling field and an oscillating conveyor device, the longitudinal extension of which forms a right angle with the direction of propagation of the traveling field.
  • the conveyor trough cannot be made of metal, since otherwise eddy currents would result in strong heating. Finally, the residence time of the mixture in the separation zone of the separating device with a traveling field running transversely to the conveying direction is short compared to the length of the conveying trough.
  • the object of the invention is to create a separating device which operates with low field strengths and a long residence time of the mixture in the separation zone.
  • this object is achieved in that the laminated core of the electromagnetic system carrying the traveling field winding covers the surface of the vibrating conveyor designed as a vibrating table, and in that the traveling field and vibrations of the vibrating table are synchronized in such a way that the maximum of the traveling field movement is effective at the time when the mixture passes through the throwing parabola generated by the vibration.
  • This device can be designed with an open or closed magnet system.
  • the oscillating table and the laminated core are combined to form a structural unit, while in the embodiment with a closed magnet system, the laminated core is arranged in a stationary manner and at a distance from the oscillating table, and the oscillating table serving as a yoke is layered from sheet metal.
  • this separation device not only magnetizable but also electrically conductive materials can be sorted out.
  • the device consists of a vibrating table 1, on which electromagnets 2 act to generate vibrations.
  • the upper part of the vibrating table consists, for example, of a sheet metal package 3 which is curved slightly in the manner of a trough and which carries a traveling field winding 4.
  • the moving field and the vibration of the table run synchronously.
  • a layer 5 of non-magnetic and electrically non-conductive material, for example plastic, is applied to the surface of the laminated core, which is expediently continued on the run-off edge given by the direction of propagation A of the traveling field with increasing distance from the laminated core.
  • the traveling field gives the magnetizable particles a component of motion that is perpendicular to the direction of motion D of the continuously added mixture.
  • the vibrating magnets 2 are advantageously arranged in such a way that the direction of conveyance B caused by the vibrations forms an angle of at least approximately 45 ° with the direction of propagation A of the traveling field and that the table also performs a lifting movement.
  • the magnetic field lines close via the air or the magnetizable material.
  • the propulsion component of the traveling field is therefore relatively small, so that a long residence time of the mixture in the separation zone is required to sort out weakly magnetizable material.
  • the magnet system 8 generating the traveling field is arranged in a stationary manner and forms an intermediate space 9 with the vibrating table 7, into which the mixture to be separated is introduced.
  • the vibrating table 7 or the upper one Layer of the vibrating table is layered from sheet metal and thus forms a yoke for the magnet system. This results in a field line course indicated, for example, by the dashed line 10.
  • the vibrating table 7 is driven in the same way as in FIG. 1 by magnets 2 in synchronism with the traveling field.
  • the magnetic and mechanical forces must be coordinated so that the tangential movement component of the traveling field is effective at the point in time when the mixture is still passing through the throwing parabola created by the vibration of the vibrating table.
  • weakly magnetizable particles ultimately remain within the range of action of the magnetic force component and can be discharged.
  • the vibrating table shown in FIG. 1 with a trough-like surface is suitable for operating the device as a wet separator. Because pure water, apart from a desired local vortex formation is neither influenced by the magnetic nor by the mechanical forces, it does not exert any additional forces on the substances to be separated. Particles floating in water, the specific weight of which is greater than water, settle on the ground after some time due to gravity. In the device, the effect of gravity is increased by a substantially greater force resulting from the upward acceleration of the vibrating table, so that the heavy particles, in particular the magnetizable particles, on which the magnetic force directed onto the magnetic surface additionally acts, in the shortest possible time Stop time. If necessary, the water can be removed from the process in the direction of arrow C.
  • the dashed lines in FIG. 1 indicate the direction of movement of the magnetizable substances, the dash-dotted lines the direction of movement of the non-magnetizable substances and the line 6 the filling height.
  • the surface of the vibrating table is expediently not curved.
  • the layer By coating the surface of the magnet system with non-magnetic and electrically non-conductive material, abrasion on the surface of the laminated core is prevented.
  • the layer can be kept very thin, apart from the trailing edge for the magnetizable substances, since no forces or tensions act on it. If the layer is made of a plastic filler mixed with iron powder, with which the. Grooves openings for the windings of the magnet system are filled, there is an optimal force effect on the magnetizable materials.
  • the additional DC component of the supply voltage is eliminated.
  • the magnetizable substances behave comparatively as if iron powder were blown into the air gap of a running synchronous motor, so that they are transported by the magnetic traveling wave to the discharge side of the device. Since the magnetic forces of the traveling field also act on the oscillating table designed as a yoke, the magnet system can be used directly as a vibration generator, thereby achieving synchronous operation between the traveling field and the oscillating table.

Abstract

Magnetic separators are known for the separation of magnetisable substances from non-magnetisable substances, which separators consist, for example, of a vibrator conveyor and an electromagnetic system arranged above it in a stationary fashion, which system generates a travelling-wave field running perpendicularly to the conveying direction of the material to be separated. According to the invention, a vibrator table (1) is used as the vibrator conveyor, the entire surface of which table is covered by the electromagnetic system (3, 4) generating the travelling-wave field and the conveying direction (B) of which table caused by the vibrating movement forms together with the direction of movement (A) of the travelling-wave field running transversely to the longitudinal extension of the vibrator table (1) an angle of 45 DEG .The magnet system can be designed as an open or closed system. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Abscheiden von magnetisierbaren Stoffen aus einem magnetisierbare und nicht magnetisierbare Stoffe enthaltenden Gemisch mittels eines ein Wanderfeld erzeugenden Elektromagnetsystems und einer Schwingfördereinrichtung, deren Längsausdehnung mit der Fortpflanzungsrichtung des Wanderfeldes einen rechten Winkel bildet.The invention relates to a device for separating magnetisable substances from a mixture containing magnetisable and non-magnetisable substances by means of an electromagnet system producing a traveling field and an oscillating conveyor device, the longitudinal extension of which forms a right angle with the direction of propagation of the traveling field.

Aus der DE-OS 25 53 855 ist es bekannt, ein ein Wanderfeld erzeugendes Elektromagnetsystem ortsfest über einer motorisch in Schwingungen versetzbaren Förderrinne.derart anzubringen, daß die Fortpflanzungsrichtung des Wanderfeldes in einer Ausführung unter einem Winkel von 90° zur Förderrichtung verläuft oder in einer anderen Ausführung mit der Förderrichtung übereinstimmt. Die magnetisierbaren Teilchen mit sehr kleinen Korngrößen sollen dabei durch die Kräfte des Elektromagnetsystems oder eines zusätzlich vorgesehenen Magneten aus dem Gemisch herausgehoben und durch das Wanderfeld zu einem Auffangbehälter transportiert werden. Da der Abstand zwischen der Oberfläche des Gemisches und dem Magnetsystem bedingt durch die Förderrinne relativ groß ist und die magnetischen Trennkräfte quadratisch mit der Entfernung abnehmen, muß das Magnetsystem für hohe Feldstärken bemessen sein. Damit die magnetisierbaren Teilchen infolgedessen nicht an dem Magnetsystem haften bleiben, ist hier ein aus nicht magnetisierbarem Material hergestelltes Transportband erforderlich, dessen Untertrum unmittelbar unterhalb des Magnetsystems verläuft.From DE-OS 25 53 855 it is known to mount a traveling magnetic field system stationary over a motorized vibrating conveyor trough such that the direction of propagation of the traveling field runs in an embodiment at an angle of 90 ° to the conveying direction or in another Execution corresponds to the conveying direction. The magnetizable particles with very small grain sizes are to be lifted out of the mixture by the forces of the electromagnet system or an additionally provided magnet and are to be transported through the traveling field to a collecting container. Since the distance between the surface of the mixture and the magnet system is relatively large due to the conveyor trough and the magnetic separating forces decrease quadratically with the distance, the magnet system must be dimensioned for high field strengths. So that the magnetizable particles do not stick to the magnet system as a result, a conveyor belt made of non-magnetizable material is required here, the lower run of which runs directly below the magnet system.

Wegen der hohen Feldstärke kann die Förderrinne nicht aus Metall hergestellt werden, da anderenfalls in ihr zu einer starken Erwärmung führende Wirbelströme entstehen würden. Schließlich ist die Verweilzeit des Gemisches in der Trennzone der Abscheidevorrichtung mit quer zur Förderrichtung verlaufendem Wanderfeld gering im Vergleich zur Länge der Förderrinne.Because of the high field strength, the conveyor trough cannot be made of metal, since otherwise eddy currents would result in strong heating. Finally, the residence time of the mixture in the separation zone of the separating device with a traveling field running transversely to the conveying direction is short compared to the length of the conveying trough.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine mit niedrigen Feldstärken und hoher Verweilzeit des Gemisches in der Trennzone arbeitende Abscheidevorrichtung zu schaffen. Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß das die Wanderfeldwicklung tragende Blechpaket des Elektromagnetsystems die Oberfläche der als Schwingtisch ausgeführten Schwingfördereinrichtung überdeckt und daß das Wanderfeld und Schwingungen des Schwingtisches derart synchronisiert sind, daß das Maximum der Wanderfeldbewegung in dem Zeitpunkt wirksam ist, in dem das Gemisch die durch die Schwingung erzeugte Wurfparabel durchläuft. Diese Vorrichtung kann mit offenem oder geschlossenem Magnetsystem ausgeführt sein. In der Ausführung mit offenem Magnetsystem sind der Schwingtisch und das Blechpaket zu einer Baueinheit zusammengesetzt, während in der Ausführung mit geschlossenem Magnetsystem das Blechpaket ortsfest und mit Abstand zum Schwingtisch angeordnet und der als Rückschlußjoch dienende Schwingtisch aus Blechen geschichtet ist. Mit dieser Abscheidevorrichtung können nicht nur magnetisierbare,sondern elektrisch leitende Stoffe aussortiert werden.Proceeding from this, the object of the invention is to create a separating device which operates with low field strengths and a long residence time of the mixture in the separation zone. According to the invention, this object is achieved in that the laminated core of the electromagnetic system carrying the traveling field winding covers the surface of the vibrating conveyor designed as a vibrating table, and in that the traveling field and vibrations of the vibrating table are synchronized in such a way that the maximum of the traveling field movement is effective at the time when the mixture passes through the throwing parabola generated by the vibration. This device can be designed with an open or closed magnet system. In the version with an open magnet system, the oscillating table and the laminated core are combined to form a structural unit, while in the embodiment with a closed magnet system, the laminated core is arranged in a stationary manner and at a distance from the oscillating table, and the oscillating table serving as a yoke is layered from sheet metal. With this separation device, not only magnetizable but also electrically conductive materials can be sorted out.

Zur weiteren Erläuterung wird auf die Zeichnung verwiesen, in der Ausführungsbeispiele der Vorrichtung dargestellt sind und zwar in

  • Fig. 1 eine Vorrichtung mit offenem Magnetsystem,
  • Fig. 2 eine Vorrichtung mit geschlossenem Magnetsystem.
For further explanation, reference is made to the drawing, in which exemplary embodiments of the device are shown, namely in
  • 1 shows a device with an open magnet system,
  • Fig. 2 shows a device with a closed magnet system.

Nach Fig. 1 besteht die Vorrichtung aus einem Schwingtisch 1, an dem zur Schwingungserzeugung Elektromagnete 2 angreifen. Der obere Teil des Schwingtisches besteht beispielsweise aus einem leicht muldenartig gewölbten Blechpaket 3, das eine Wanderfeldwicklung 4 trägt. Das Wanderfeld und die Schwingung des Tisches verlaufen synchron. Auf der Oberfläche des Blechpaketes ist eine Schicht 5 aus unmagnetischem und elektrisch nicht leitendem Material, beispielsweise Kunststoff, aufgetragen, die zweckmäßigerweise an der durch die Fortpflanzungsrichtung A des Wanderfeldes gegebenen Ablaufkante mit zunehmendem Abstand vom Blechpaket weitergeführt ist.1, the device consists of a vibrating table 1, on which electromagnets 2 act to generate vibrations. The upper part of the vibrating table consists, for example, of a sheet metal package 3 which is curved slightly in the manner of a trough and which carries a traveling field winding 4. The moving field and the vibration of the table run synchronously. A layer 5 of non-magnetic and electrically non-conductive material, for example plastic, is applied to the surface of the laminated core, which is expediently continued on the run-off edge given by the direction of propagation A of the traveling field with increasing distance from the laminated core.

Durch das Wanderfeld erhalten die magnetisierbaren Teilchen eine Bewegungskomponente, die rechtwinklig zu der Bewegungsrichtung D des laufend aufgegebenen Gemisches verläuft. Die Schwingmagnete 2 sind vorteilhafterweise derart angeordnet, daß die durch die Schwingungen verursachte Förderrichtung B mit der Fortpflanzungsrichtung A des Wanderfeldes einen Winkel von zumindest angenähert 45° bildet und daß der Tisch zusätzlich eine Hubbewegung ausführt.The traveling field gives the magnetizable particles a component of motion that is perpendicular to the direction of motion D of the continuously added mixture. The vibrating magnets 2 are advantageously arranged in such a way that the direction of conveyance B caused by the vibrations forms an angle of at least approximately 45 ° with the direction of propagation A of the traveling field and that the table also performs a lifting movement.

In dieser Ausführung mit offenem Magnetsystem schließen sich die magnetischen Feldlinien über die Luft bzw. das magnetisierbare Material. Die Vortriebskomponente des Wanderfeldes ist daher relativ klein, so daß zur Aussortierung von schwach magnetisierbarem Material eine hohe Verweilzeit des Gemisches in der Trennzone erforderlich ist.In this version with an open magnet system, the magnetic field lines close via the air or the magnetizable material. The propulsion component of the traveling field is therefore relatively small, so that a long residence time of the mixture in the separation zone is required to sort out weakly magnetizable material.

In Fig. 2 ist ein Querschnitt durch eine Vorrichtung mit geschlossenem Magnetsystem dargestellt. In dieser Ausführung ist das das Wanderfeld erzeugende Magnetsystem 8 ortsfest angeordnet und bildet mit dem Schwingtisch 7 einen Zwischenraum 9, in den das zu trennende Gemisch eingegeben wird. Der Schwingtisch 7 oder die obere Schicht des Schwingtisches ist aus Blechen geschichtet und bildet so ein Rückschlußjoch für das Magnetsystem. Dadurch ergibt sich ein beispielsweise durch die gestrichelte Linie 10 angedeuteter Feldlinienverlauf. Der Schwingtisch 7 wird in derselben Weise wie in Fig. 1 durch Magnete 2 synchron zum Wanderfeld angetrieben.2 shows a cross section through a device with a closed magnet system. In this embodiment, the magnet system 8 generating the traveling field is arranged in a stationary manner and forms an intermediate space 9 with the vibrating table 7, into which the mixture to be separated is introduced. The vibrating table 7 or the upper one Layer of the vibrating table is layered from sheet metal and thus forms a yoke for the magnet system. This results in a field line course indicated, for example, by the dashed line 10. The vibrating table 7 is driven in the same way as in FIG. 1 by magnets 2 in synchronism with the traveling field.

In dieser Ausführung ergeben sich ein höheres magnetisches Feld und dementsprechend höhere Vortriebskräfte im Zwischenraum als bei der offenen Ausführung des Magnetsystemes, weil sich die Feldlinien mit wesentlich geringerem magnetischem Widerstand über das Joch schließen.In this version there is a higher magnetic field and accordingly higher propulsive forces in the gap than in the open version of the magnet system, because the field lines close with a much lower magnetic resistance across the yoke.

Die magnetischen und die mechanischen Kräfte sind so aufeinander abzustimmen, daß die tangentiale Bewegungskomponente des Wanderfeldes in dem Zeitpunkt wirksam ist, in dem das Gemisch noch die durch die Vibration des Schwingtisches erzeugte Wurfparabel durchläuft. In der Ausführung mit offenem Magnetsystem ist es dabei von Vorteil, das Magnetsystem zusätzlich mit überlagertem Gleichstrom zu erregen, so daß die mechanischen Kräfte zumindest weitgehend geschwächt werden und infolgedessen ein Teil der magnetisierbaren Stoffe nicht oder nur mit kleinerer Amplitude an der Wurfbewegung teilnehmen kann. Dadurch wird eine gegenseitige Behinderung der zu trennenden Stoffe auf dem Wege zur linken bzw. rechten Ablaufkante des Schwingtisches wesentlich verringert. Entsprechend der Verweilzeit des Gemisches, die von der Länge des Schwingtisches und der aufgegebenen Menge des Gemisches abhängig ist, verbleiben schließlich auch schwach magnetisierbare Teilchen im Wirkungsbereich der magnetischen Kraftkomponente und können ausgetragen werden.The magnetic and mechanical forces must be coordinated so that the tangential movement component of the traveling field is effective at the point in time when the mixture is still passing through the throwing parabola created by the vibration of the vibrating table. In the version with an open magnet system, it is advantageous to excite the magnet system additionally with superimposed direct current, so that the mechanical forces are at least largely weakened and, as a result, some of the magnetizable substances cannot participate in the throwing motion or can only participate with a smaller amplitude. This significantly reduces the mutual hindrance of the substances to be separated on the way to the left or right drain edge of the vibrating table. Corresponding to the residence time of the mixture, which depends on the length of the vibrating table and the quantity of the mixture applied, weakly magnetizable particles ultimately remain within the range of action of the magnetic force component and can be discharged.

Der in Fig. 1 dargestellte Schwingtisch mit muldenartiger Oberfläche eignet sich für den Betrieb der Vorrichtung als Naßscheider. Da reines Wasser, abgesehen von einer durchaus erwünschten lokalen Wirbelbildung weder durch die magnetischen, noch durch die mechanischen Kräfte beeinflußt wird, übt es keine zusätzlichen Kräfte auf die zu trennenden Stoffe aus. Im Wasser schwebende Teilchen, deren spezifisches Gewicht größer als Wasser ist, setzen sich infolge der Schwerkraft nach einiger Zeit auf dem Boden ab. In der Vorrichtung wird die Wirkung der Schwerkraft durch eine wesentlich grössere, aus der nach oben gerichteten Beschleunigung des Schwingtisches resultierende Kraft erhöht, so daß sich die schweren Teilchen, insbesondere die magnetisierbaren Teilchen, auf die zusätzlich die auf die Magnetoberfläche gerichtete Magnetkraft wirkt, in kürzester Zeit absetzen. Gegebenenfalls kann das Wasser dem Prozeß in Richtung des Pfeiles C entzogen werden. Die gestrichelten Linien in Fig. 1 deuten die Bewegungsrichtung der magnetisierbaren Stoffe, die strichpunktierten Linien die Bewegungsrichtung der nicht magnetisierbaren Stoffe und die Linie 6 die Füllhöhe an.The vibrating table shown in FIG. 1 with a trough-like surface is suitable for operating the device as a wet separator. Because pure water, apart from a desired local vortex formation is neither influenced by the magnetic nor by the mechanical forces, it does not exert any additional forces on the substances to be separated. Particles floating in water, the specific weight of which is greater than water, settle on the ground after some time due to gravity. In the device, the effect of gravity is increased by a substantially greater force resulting from the upward acceleration of the vibrating table, so that the heavy particles, in particular the magnetizable particles, on which the magnetic force directed onto the magnetic surface additionally acts, in the shortest possible time Stop time. If necessary, the water can be removed from the process in the direction of arrow C. The dashed lines in FIG. 1 indicate the direction of movement of the magnetizable substances, the dash-dotted lines the direction of movement of the non-magnetizable substances and the line 6 the filling height.

Wird die Vorrichtung als Trockenscheider betrieben, so wird die Oberfläche des Schwingtisches zweckmäßigerweise nicht gewölbt.If the device is operated as a dry separator, the surface of the vibrating table is expediently not curved.

Durch die Beschichtung der Oberfläche des Magnetsystemes mit unmagnetischem und elektrisch nicht leitendem Material wird ein Abrieb auf der Oberfläche des Blechpaketes verhindert. Die Schicht kann, abgesehen von der Ablaufkante für die magnetisierbaren Stoffe, sehr dünn gehalten werden, da keine Kräfte oder Spannungen auf sie einwirken. Wird die Schicht aus einer mit Eisenpulver gemischten Kunststoffspachtelmasse hergestellt, mit der auch die. Nutöffnungen für die Wicklungen des Magnetsystems verspachtelt werden, ergibt sich eine optimale Kraftwirkung auf die magnetisierbaren Stoffe.By coating the surface of the magnet system with non-magnetic and electrically non-conductive material, abrasion on the surface of the laminated core is prevented. The layer can be kept very thin, apart from the trailing edge for the magnetizable substances, since no forces or tensions act on it. If the layer is made of a plastic filler mixed with iron powder, with which the. Grooves openings for the windings of the magnet system are filled, there is an optimal force effect on the magnetizable materials.

In der Ausführung der Vorrichtung mit geschlossenem Magnetsystem entfällt die zusätzliche Gleichstromkomponente der Speisespannung. Die magnetisierbaren Stoffe verhalten sich vergleichsweise so, als wenn in den Luftspalt eines laufenden Synchronmotors Eisenpulver eingeblasen würde, so daß sie von der magnetischen Wanderwelle zur Austragsseite der Vorrichtung transportiert werden. Da die magnetischen Kräfte des Wanderfeldes auch auf den als Rückschlußjoch ausgebildeten Schwingtisch wirken, kann das Magnetsystem unmittelbar als Schwingungserzeuger herangezogen und dadurch ein synchroner Betrieb zwischen dem Wanderfeld und dem Schwingtisch erzielt werden.In the embodiment of the device with a closed magnet system, the additional DC component of the supply voltage is eliminated. The magnetizable substances behave comparatively as if iron powder were blown into the air gap of a running synchronous motor, so that they are transported by the magnetic traveling wave to the discharge side of the device. Since the magnetic forces of the traveling field also act on the oscillating table designed as a yoke, the magnet system can be used directly as a vibration generator, thereby achieving synchronous operation between the traveling field and the oscillating table.

Claims (9)

1. Vorrichtung zum Abscheiden von magnetisierbaren Stoffen aus einem magnetisierbare und nicht magnetisierbare Stoffe enthaltenden Gemisch mittels eines ein Wanderfeld erzeugenden Elektromagnetsystems und einer Schwingfördereinrichtung, deren Längsausdehnung mit der Fortpflanzungsrichtung des Wanderfeldes einen rechten Winkel bildet, dadurcgekennzeichnet , daß das die Wanderfeldwicklung (4) tragende Blechpaket (3) des Elektromagnetsystems die Oberfläche der als Schwingtisch (1) ausgeführten Schwingfördereinrichtung überdeckt und daß das Wanderfeld und die Schwingungen des Schwingtisches derart synchronisiert sind, daß das Maximum der Wanderfeldbewegung in dem Zeitpunkt wirksam ist, in dem das Gemisch die durch , die Schwingung erzeugte Wurfparabel durchläuft.1. Apparatus for separating magnetisable substances from a mixture containing magnetisable and non-magnetisable substances by means of an electromagnet system producing a traveling field and an oscillating conveyor device, the longitudinal extension of which forms a right angle with the direction of propagation of the traveling field, characterized in that the laminated core carrying the traveling field winding (4) (3) of the electromagnetic system covers the surface of the vibrating conveyor designed as a vibrating table (1) and that the traveling field and the vibrations of the vibrating table are synchronized in such a way that the maximum of the traveling field movement is effective at the point in time when the mixture generates the vibration Throwing parabola runs through. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet , daß der Schwingtisch (1) derart an den die Schwingungen erzeugenden Antrieb (2) gekoppelt ist, daß die Förderrichtung (B) des Gemisches mit der Fortpflanzungsrichtung (A) des Wanderfeldes einen Winkel von zumindest angenähert 45° bildet.2. Device according to claim 1, characterized in that the vibrating table (1) is coupled to the drive generating the vibrations (2) in such a way that the conveying direction (B) of the mixture with the direction of propagation (A) of the traveling field approximates an angle of at least 45 ° forms. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet , daß der Schwingtisch (1) und das Blechpaket (3) zu einer Baueinheit zusammengesetzt sind.3. Apparatus according to claim 2, characterized in that the vibrating table (1) and the laminated core (3) are assembled into one structural unit. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet , daß dem Wanderfeld zusätzlich eine Gleichstromkomponente überlagert ist.4. Apparatus according to claim 3, characterized in that a DC component is additionally superimposed on the traveling field. 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet , daß die freie Oberfläche des Blechpaketes (3) mit einer dünnen Schicht (5) aus unmagnetischem und elektrisch nicht leitendem Material bedeckt ist.5. The device according to claim 4, characterized in that the free surface of the laminated core (3) is covered with a thin layer (5) of non-magnetic and electrically non-conductive material. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet , daß die Schicht (5) aus einer Eisenpulver enthaltenden Spachtelmasse aus Kunststoff besteht.6. The device according to claim 5, characterized in that the layer (5) consists of an iron powder containing filler made of plastic. 7. Vorrichtung nach einem der Ansprüche 4 bis 6 in Ausführung als Naßabscheider, dadurch gekennzeichnet , daß die Oberfläche des Schwingtisches (1) und des Blechpaketes (3) muldenartig gewölbt ist.7. Device according to one of claims 4 to 6 in the form of a wet separator, characterized in that the surface of the vibrating table (1) and the laminated core (3) is curved like a trough. 8. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet , daß das Blechpaket (3) ortsfest und mit Abstand zum Schwingtisch (7) angeordnet und der als Rückschlußjoch dienende Schwingtisch aus Blechen geschichtet ist (Fig. 2).8. The device according to claim 2, characterized in that the laminated core (3) is arranged in a stationary manner and at a distance from the oscillating table (7) and the oscillating table serving as a yoke is layered from sheet metal (FIG. 2). 9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet , daß das Magnetsystem (4, 8) gleichzeitig als Schwingungserzeuger für den Schwingtisch (7) dient.9. The device according to claim 8, characterized in that the magnet system (4, 8) serves simultaneously as a vibration generator for the vibrating table (7).
EP82103194A 1981-04-29 1982-04-15 Device for the separation of magnetisable substances from a mixture of magnetisable and non-magnetisable substances Withdrawn EP0063755A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3117063 1981-04-29
DE3117063A DE3117063C1 (en) 1981-04-29 1981-04-29 Device for separating magnetisable substances from a mixture containing magnetisable and non-magnetisable substances

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
RU2497595C2 (en) * 2009-08-24 2013-11-10 ЗАО "Управляющая горная машиностроительная компания "Рудгормаш" (ЗАО "УГМК "Рудгормаш") Magnetic separator with travelling magnetic field

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019407A1 (en) * 1990-06-18 1991-12-19 Werner Doppstadt MOBILE CRUSHING MACHINE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR589396A (en) * 1924-11-15 1925-05-28 Improvements in the electromagnetic separation or concentration of minerals
DE1052322B (en) * 1957-03-09 1959-03-12 Licencia Talalmanyokat Process for separating magnetizable particles, particularly in ore processing
DE2644635A1 (en) * 1976-10-02 1977-11-10 Demag Ag Non:magnetic swarf separator - uses linear motor producing irregular field to vibrate non:metallic conveying trough
US4229288A (en) * 1978-03-16 1980-10-21 Shinko Electric Co., Ltd. Linear motor type, non-magnetic metal separating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR589396A (en) * 1924-11-15 1925-05-28 Improvements in the electromagnetic separation or concentration of minerals
DE1052322B (en) * 1957-03-09 1959-03-12 Licencia Talalmanyokat Process for separating magnetizable particles, particularly in ore processing
DE2644635A1 (en) * 1976-10-02 1977-11-10 Demag Ag Non:magnetic swarf separator - uses linear motor producing irregular field to vibrate non:metallic conveying trough
US4229288A (en) * 1978-03-16 1980-10-21 Shinko Electric Co., Ltd. Linear motor type, non-magnetic metal separating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2497595C2 (en) * 2009-08-24 2013-11-10 ЗАО "Управляющая горная машиностроительная компания "Рудгормаш" (ЗАО "УГМК "Рудгормаш") Magnetic separator with travelling magnetic field

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AU8306782A (en) 1982-11-04
DE3117063C1 (en) 1982-12-09
ZA822897B (en) 1983-03-30

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