EP0339195A2 - Magnetic separator - Google Patents
Magnetic separator Download PDFInfo
- Publication number
- EP0339195A2 EP0339195A2 EP89102517A EP89102517A EP0339195A2 EP 0339195 A2 EP0339195 A2 EP 0339195A2 EP 89102517 A EP89102517 A EP 89102517A EP 89102517 A EP89102517 A EP 89102517A EP 0339195 A2 EP0339195 A2 EP 0339195A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt drum
- belt
- magnet system
- drum
- 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.)
- Granted
Links
- 239000006148 magnetic separator Substances 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 44
- 239000004020 conductor Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052742 iron Inorganic materials 0.000 abstract description 17
- 230000005291 magnetic effect Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 2
- 230000032258 transport Effects 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
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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
- B03C1/247—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 invention relates to a magnetic separator with a conveyor belt guided over a belt drum made of non-electrically conductive material for transporting the fraction to be sorted from more or less highly electrically conductive particles, with a magnet system which is rotatably driven in the belt drum at a higher rotational speed than that of the belt drum and with behind the belt drum arranged collection container for the separated electrically conductive particles.
- Such a device is known from US Pat. No. 3,448,857.
- a magnetic system arranged in a drum rotates within the belt drum at a speed of approximately 1500 rpm, while the conveyor belt carries the fraction to be sorted at a speed of 1 m / sec to 1.5 m / sec of the belt drum and thus feeds the magnet system.
- the drum in which the magnet system is arranged has an outer diameter which corresponds approximately to the inner diameter of the belt drum, and a small, constant air gap is formed between the magnet system and the belt drum.
- a ferromagnetic particle can get between the conveyor belt and its belt drum. It is also possible that such a particle can get through a wear point in a conveyor belt between the belt drum and the conveyor belt. These ferromagnetic particles are held in place by the magnetic force and circulate on the belt drum.
- the belt drum In order not to impair the effect of the magnet system, the belt drum must be made of non-conductive material. As a rule, the belt drum of such a system is made of plastic. However, this plastic material will already melt at relatively low temperatures.
- a magnetizable electrically conductive particle, i.e. Iron particles, which have settled between the conveyor belt and the belt drum, are warmed up so strongly by the alternating magnetic field of the magnet system that they begin to glow.
- the particle can work its way through the plastic of the belt drum and enters the air gap between the outer surface of the magnet system and the inner surface of the belt drum.
- the device may then be severely damaged under certain circumstances, since the rapidly rotating magnetic system takes the iron particles with it and, for example, slits the belt drum jacket. This entails a system shutdown and an expensive repair.
- the invention has for its object to provide a generic magnetic separator in such a way that damage to the belt drum by particles between the conveyor belt and belt drum are avoided.
- This object is achieved in that the outer diameter of the magnet system is significantly smaller than the inside diameter of the belt drum and that Magnet system is arranged eccentrically in the belt drum.
- an iron particle gets between the belt drum and the belt, it is clamped between the belt drum and the belt and thereby initially guided past the rapidly rotating magnet system, but it cannot be held by it, but it is forced to rotate Belt drum placed at a greater distance from the magnet system.
- the influence of the magnetic lines of force on the iron particle is so small that it either gets stuck on the belt drum or falls on the lower run of the conveyor belt.
- Strippers are preferably arranged on the outside of the belt drum between the upper and lower runs of the conveyor belt and / or on the inside of the lower run of the conveyor belt behind the belt drum, so that iron particles passing between the conveyor belt and the belt drum are stripped from the belt drum or the lower run of the conveyor belt and can be derived. This prevents damage to the belt drum caused by the trapped iron particles.
- the magnet system can be pivoted about the center of the belt drum, so that the relative position between the magnet system and the belt drum can be adjusted with simple means and, for example, maintenance work can be facilitated.
- the air gap between the drum shell and the magnet system is preferably adjustable.
- the diameter of the magnet system is preferably approximately half the diameter of the belt drum, so that the magnet system can be pivoted through 360 ° around the center of the belt drum.
- the magnet system can consist of permanent or electromagnets.
- the figure shows a conveyor belt 10 which is guided over a belt drum 12.
- a fraction of more or less electrically conductive particles 16 is arranged, which are transported at a speed of about 1 m / sec to 1.5 m / sec in the direction of arrow 18 on the conveyor belt 10.
- the belt drum 12 consists of electrically non-conductive material, for example a plastic material.
- the cylinder drum 24 of the magnet system 20 has approximately half the diameter of the belt drum 12.
- the center 26 of the cylinder drum 24 is arranged eccentrically to the center 28 of the belt drum 12.
- the cylinder drum 24 can be pivoted with the magnets 22 by means of arms 30 about the center 28 of the belt drum 12.
- the magnet system 20 is arranged in the position shown in the figure in order to optimally separate particles which are good electrical conductors from particles which are less electrically conductive.
- the magnet system 20 rotates around the center point 26 at a speed of approximately 1500 rpm.
- the container 32 In front of the belt drum 12 there is a container 32 into which the electrically conductive particles 34 fall.
- the magnetic lines of force of the magnet system 20 cut through the belt drum 12 and the conveyor belt 10 and the electrically conductive particles 16 indicated on the conveyor belt.
- currents are induced in the electrically conductive particles, which are higher in the case of well electrically conductive particles than less conductive particles.
- the particles with good electrical conductivity are then accelerated onto a throwing path, which is indicated by arrow 36. The less conductive particles remain near the conveyor belt and fall down between it and the container 32.
- An air gap 38 is formed between the outer surface of the cylinder drum 24 of the magnet system 20 and the inner surface of the belt drum 12, which air gap 38 changes continuously due to the eccentric arrangement of the magnet system 20 in the belt drum 12.
- a wiper 40 and a collecting container 42 underneath are arranged on the outer surface of the belt drum 12 opposite to the magnet system 20 arranged in the belt drum 12.
- Another scraper 44 is provided on the inner surface of the lower run 46 of the conveyor belt 10.
- the air gap 38 between the belt drum 12 and the magnet system 20 is continuously adjustable by moving the center 26 of the magnet system 20 along the elongated hole 50 of the arm 30.
- an iron particle 48 gets between the inside of the conveyor belt 10 and the outside of the drum 12, a current is induced in it by the action of the magnetic lines of force of the magnetic field 20 and the iron particle 48 becomes due to the high speed of rotation of the magnet system 20 entrained on the outer surface of the belt drum 12 until after sufficient rotation of the belt drum 12 the distance of the iron particle 48 arranged on the outer surface to the magnet system 20 becomes so great that the magnetic lines of force lose their influence on the iron particle 48. If the iron particle 48 remains stuck to the belt drum 12, it can be stripped off by the scraper 40 and released into the collecting container 42.
- the particle falls beforehand from the outer surface of the belt drum 12 onto the lower strand 46, it will become from the scraper 44 removed from the space between the upper and lower run of the conveyor belt 10.
- the eccentric arrangement of the magnet system 20 in the belt drum 12 and due to the smaller diameter of the magnet system 20 prevent an iron particle 48 between the belt drum 12 and the conveyor belt 10 from being entrained by the magnet system at a higher speed than the belt drum 12, so that since the iron particle 48 does not undergo very great heating due to the influence of the magnet system 20, damage to the belt drum 12, that is to say, for example, a slitting thereof by the iron particle 48 is excluded.
Landscapes
- Electrostatic Separation (AREA)
- Non-Mechanical Conveyors (AREA)
Abstract
Description
Die Erfindung betrifft einen Magnetscheider mit einem über eine Gurttrommel aus nicht elektrisch leitendem Material geführten Förderband für den Transport der zu sortierenden Fraktion aus mehr oder weniger gut elektrisch leitenden Teilchen, mit einem in der Gurttrommel mit höherer Drehgeschwindigkeit als die der Gurttrommel drehbar angetriebenen Magnetsystem und mit hinter der Gurttrommel angeordnetem Sammelbehälter für die abgeschiedenen elektrisch leitenden Teilchen.The invention relates to a magnetic separator with a conveyor belt guided over a belt drum made of non-electrically conductive material for transporting the fraction to be sorted from more or less highly electrically conductive particles, with a magnet system which is rotatably driven in the belt drum at a higher rotational speed than that of the belt drum and with behind the belt drum arranged collection container for the separated electrically conductive particles.
Eine derartige Vorrichtung ist aus der US-PS 3 448 857 bekannt. Bei dieser bekannten Vorrichtung rotiert ein in einer Trommel angeordnetes Magnetsystem innerhalb der Gurttrommel mit einer Geschwindigkeit von etwa 1500 U/min, während das Förderband die zu sortierende Fraktion mit einer Geschwindigkeit von 1 m/sec bis 1,5 m/sec der Gurttrommel und damit dem Magnetsystem zuführt. Die Trommel, in welcher das Magnetsystem angeordnet ist, weist einen Außendurchmesser auf, der in etwa dem Innendurchmesser der Gurttrommel entspricht, und zwischen Magnetsystem und Gurttrommel ist ein geringer konstanter Luftspalt ausgebildet. Während des Betriebs entsteht eine Relativbewegung zwischen dem Förderband und der Trommel, in welchem das Magnetsystem aufgenommen ist und dieser Geschwindigkeitsunterschied bewirkt, daß die magnetischen Kraftlinien durch die auf dem Förderband zugeführten elektrisch leitenden Teilchen schneiden, wodurch Ströme induziert werden, deren Größe von der elektrischen Leitfähigkeit der Teilchen abhängig ist. In den Teilchen mit größerer elektrischer Leitfähigkeit wird dabei ein höherer Strom erzeugt, welcher bewirkt, daß diese Teilchen einer Wurfbahn in den vor der Gurttrommel angeordneten Sammelbehälter folgen. Die Teilchen mit geringerer elektrischer Leitfähigkeit dagegen bleiben in Nähe des Förderbandes und fallen kurz vor dem Sammelbehälter von dem Förderband herab.Such a device is known from US Pat. No. 3,448,857. In this known device, a magnetic system arranged in a drum rotates within the belt drum at a speed of approximately 1500 rpm, while the conveyor belt carries the fraction to be sorted at a speed of 1 m / sec to 1.5 m / sec of the belt drum and thus feeds the magnet system. The drum in which the magnet system is arranged has an outer diameter which corresponds approximately to the inner diameter of the belt drum, and a small, constant air gap is formed between the magnet system and the belt drum. During operation there is a relative movement between the conveyor belt and the drum in which the magnet system is housed and this difference in speed causes the magnetic lines of force to cut through the electrically conductive particles fed on the conveyor belt, thereby inducing currents the size of which is related to electrical conductivity the particle is dependent. A higher current is generated in the particles with greater electrical conductivity, which causes these particles to follow a throwing path into the collecting container arranged in front of the belt drum. The particles with lower electrical conductivity, on the other hand, remain in the vicinity of the conveyor belt and fall off the conveyor belt shortly before the collecting container.
Trotz großer Vorsichtsmaßnahmen kann es geschehen, daß ein ferromagnetisches Teilchen zwischen das Förderband und dessen Gurttrommel gelangen kann. Auch ist es möglich, daß ein derartiges Teilchen durch eine Verschleißstelle in einem Förderband zwischen die Gurttrommel und das Förderband geraten kann. Diese ferromagnetischen Teilchen werden durch die Magnetkraft festgehalten und laufen auf der Gurttrommel um. Um die Wirkung des Magnetsystems nicht zu beeinträchtigen, muß die Gurttrommel aus nicht leitendem Material bestehen. In der Regel besteht die Gurttrommel eines derartigen Systems aus Kunststoff. Dieses Kunststoffmaterial wird aber bereits bei relativ geringen Temperaturen schmelzen. Ein magnetisierbares elektrisch leitendes Teilchen, d.h. Eisenteilchen, das sich zwischen Förderband und Gurttrommel festgesetzt hat, wird von dem magnetischen Wechselfeld des Magnetsystems derart stark aufgewärmt, daß es zu glühen beginnt. In diesem Zustand kann sich das Teilchen durch den Kunststoff der Gurttrommel durcharbeiten und gelangt in den Luftspalt zwischen der Außenfläche des Magnetsystems und der Innenfläche der Gurttrommel. Dabei kann es dann unter Umständen zu starken Beschädigungen der Vorrichtung kommen, da das schnell drehende Magentsystem das Eisenteilchen mitnimmt und beispielsweise den Gurttrommelmantel aufschlitzt. Dies zieht eine Stillegung des Systems und eine teure Reparatur mit sich.Despite great precautions, it can happen that a ferromagnetic particle can get between the conveyor belt and its belt drum. It is also possible that such a particle can get through a wear point in a conveyor belt between the belt drum and the conveyor belt. These ferromagnetic particles are held in place by the magnetic force and circulate on the belt drum. In order not to impair the effect of the magnet system, the belt drum must be made of non-conductive material. As a rule, the belt drum of such a system is made of plastic. However, this plastic material will already melt at relatively low temperatures. A magnetizable electrically conductive particle, i.e. Iron particles, which have settled between the conveyor belt and the belt drum, are warmed up so strongly by the alternating magnetic field of the magnet system that they begin to glow. In this state, the particle can work its way through the plastic of the belt drum and enters the air gap between the outer surface of the magnet system and the inner surface of the belt drum. The device may then be severely damaged under certain circumstances, since the rapidly rotating magnetic system takes the iron particles with it and, for example, slits the belt drum jacket. This entails a system shutdown and an expensive repair.
Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Magnetscheider derart auszubilden, daß Beschädigungen der Gurttrommel durch zwischen das Förderband und Gurttrommel gelangende Teilchen vermieden werden.The invention has for its object to provide a generic magnetic separator in such a way that damage to the belt drum by particles between the conveyor belt and belt drum are avoided.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Außendurchmesser des Magnetsystems wesentlich geringer ist als der lichte Innendurchmesser der Gurttrommel und daß das Magnetsystem exzentrisch in der Gurttrommel angeordnet ist.This object is achieved in that the outer diameter of the magnet system is significantly smaller than the inside diameter of the belt drum and that Magnet system is arranged eccentrically in the belt drum.
Wenn bei dem erfindungsgemäßen Permanentmagnetscheider ein Eisenteilchen zwischen Gurttrommel und Gurt gelangt, wird es zwischen der Gurttrommel und dem Gurt eingeklemmt und dadurch zwar zunächst an dem schnell drehenden Magnetsystem vorbeigeführt, jedoch kann es von diesem nicht festgehalten werden, sondern es wird zwangsweise bei der Rotation der Gurttrommel in größeren Abstand zu dem Magnetsystem gebracht. Dabei wird der Einfluß der magnetischen Kraftlinien auf das Eisenteilchen so gering, daß es entweder an der Gurttrommel hängenbleibt oder auf das Untertrum des Förderbandes fällt.If, in the permanent magnetic separator according to the invention, an iron particle gets between the belt drum and the belt, it is clamped between the belt drum and the belt and thereby initially guided past the rapidly rotating magnet system, but it cannot be held by it, but it is forced to rotate Belt drum placed at a greater distance from the magnet system. The influence of the magnetic lines of force on the iron particle is so small that it either gets stuck on the belt drum or falls on the lower run of the conveyor belt.
Vorzugsweise sind an der Außenseite der Gurttrommel zwischen Ober- und Untertrum des Förderbandes und/oder an der Innenseite des Untertrums des Förderbandes hinter der Gurttrommel Abstreifer angeordnet, so daß zwischen das Förderband und die Gurttrommel gelangende Eisenteilchen von der Gurttrommel oder dem Untertrum des Förderbandes abgestreift und abgeleitet werden können. Damit wird eine Beschädigung der Gurttrommel durch das eingeschlossene Eisenteilchen ausgeschaltet.Strippers are preferably arranged on the outside of the belt drum between the upper and lower runs of the conveyor belt and / or on the inside of the lower run of the conveyor belt behind the belt drum, so that iron particles passing between the conveyor belt and the belt drum are stripped from the belt drum or the lower run of the conveyor belt and can be derived. This prevents damage to the belt drum caused by the trapped iron particles.
Gemäß einer bevorzugten Ausführungsform ist das Magnetsystem um den Mittelpunkt der Gurttrommel verschwenkbar, so daß die Relativlage zwischen Magnetsystem und Gurttrommel mit einfachen Mitteln eingestellt werden kann und beispielsweise Wartungsarbeiten erleichtert werden können.According to a preferred embodiment, the magnet system can be pivoted about the center of the belt drum, so that the relative position between the magnet system and the belt drum can be adjusted with simple means and, for example, maintenance work can be facilitated.
Der Luftspalt zwischen Trommelmantel und Magnetsystem ist vorzugsweise einstellbar.The air gap between the drum shell and the magnet system is preferably adjustable.
Vorzugsweise ist der Durchmesser des Magnetsystems etwa halb so groß wie der Durchmesser der Gurttrommel, so daß das Magnetsystem um 360° um den Mittelpunkt der Gurttrommel verschwenkt werden kann.The diameter of the magnet system is preferably approximately half the diameter of the belt drum, so that the magnet system can be pivoted through 360 ° around the center of the belt drum.
Das Magnetsystem kann aus Permanent- oder Elektromagneten bestehen.The magnet system can consist of permanent or electromagnets.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert.An embodiment of the invention is explained below with reference to the drawing.
Die Figur zeigt ein Förderband 10, das über eine Gurttrommel 12 geführt wird. Auf dem Obertrum 14 des Förderbandes 10 ist eine Fraktion aus mehr oder weniger elektrisch leitenden Teilchen 16 angeordnet, die mit einer Geschwindigkeit von etwa 1 m/sec bis 1,5 m/sec in Richtung des Pfeiles 18 auf dem Förderband 10 transportiert werden. Die Gurttrommel 12 besteht aus elektrisch nicht leitendem Material, beispielsweise einem Kunststoffmaterial.The figure shows a
Innerhalb der Gurttrommel 12 ist ein Magnetsystem 20 mit Permanentmagneten oder Elektromagneten 22 angeordnet, die in einer Zylindertrommel 24 vorgesehen sind. Die Zylindertrommel 24 des Magnetsystems 20 weist etwa den halben Durchmesser der Gurttrommel 12 auf. Der Mittelpunkt 26 der Zylindertrommel 24 ist exzentrisch zu dem Mittelpunkt 28 der Gurttrommel 12 angeordnet. Die Zylindertrommel 24 ist mit den Magneten 22 mittels Armen 30 um den Mittelpunkt 28 der Gurttrommel 12 schwenkbar. Zur optimalen Trennung von gut elektrisch leitenden Teilchen von weniger gut elektrisch leitenden Teilchen ist das Magnetsystem 20 in der in der Figur gezeigten Stellung angeordnet. Das Magnetsystem 20 rotiert um den Mittelpunkt 26 mit einer Geschwindigkeit von etwa 1500 U/min.A
Vor der Gurttrommel 12 ist ein Behälter 32 angeordnet, in welchen die gut elektrisch leitenden Teilchen 34 hineinfallen. Während des Transports auf dem Förderband 10 schneiden die magnetischen Kraftlinien des Magnetsystems 20 durch die Gurttrommel 12 und das Förderband 10 und die auf dem Förderband angeführten elektrisch leitenden Teilchen 16. Dabei werden in den elektrisch leitenden Teilchen Ströme induziert, die bei gut elektrisch leitenden Teilchen höher sind als bei weniger gut elektrisch leitenden Teilchen. Die gut elektrisch leitenden Teilchen werden dann auf eine Wurfbahn beschleunigt, die durch den Pfeil 36 angedeutet ist. Die weniger gut leitenden Teilchen bleiben in Nähe des Förderbandes und fallen zwischen diesem und dem Behälter 32 nach unten. Zwischen der Außenfläche der Zylindertrommel 24 des Magnetsystems 20 und der Innenfläche des Gurttrommel 12 ist ein Luftspalt 38 ausgebildet, der infolge der exzentrischen Anordnung des Magnetsystems 20 in der Gurttrommel 12 sich stetig verändert. An der Außenfläche der Gurttrommel 12 gegenüberliegend zu dem in der Gurttrommel 12 angeordneten Magnetsystem 20 sind ein Abstreifer 40 und ein darunter liegender Auffangbehälter 42 angeordnet. Ein weiterer Abstreifer 44 ist auf der Innenfläche des Untertrums 46 des Förderbandes 10 vorgesehen.In front of the
Der Luftspalt 38 zwischen der Gurttrommel 12 und dem Magnetsystem 20 ist durch Verschiebung des Mittelpunktes 26 des Magnetsystems 20 entlang des Langloches 50 des Arms 30 stufenlos einstellbar.The
Wenn aus irgendeinem nicht vorhersehbaren und ungewollten Grund ein Eisenteilchen 48 zwischen die Innenseite des Förderbandes 10 und die Außenseite der Trommel 12 gelangt, wird in diesem durch Einwirkung der magnetischen Kraftlinien des Magnetfeldes 20 ein Strom induziert und das Eisenteilchen 48 wird infolge der hohen Drehgeschwindigkeit des Magnetsystems 20 auf der Außenfläche der Gurttrommel 12 mitgerissen, bis nach ausreichender Drehung der Gurttrommel 12 der Abstand des auf der Außenfläche angeordneten Eisenteilchens 48 zu dem Magnetsystem 20 so groß wird, daß die magnetischen Kraftlinien ihren Einfluß auf das Eisenteilchen 48 verlieren. Sollte das Eisenteilchen 48 weiter an der Gurttrommel 12 haften bleiben, so kann es durch den Abstreifer 40 abgestreift und in den Auffangbehälter 42 abgegeben werden. Sollte das Teilchen vorher von der Außenfläche der Gurttrommel 12 auf das Untertrum 46 herabfallen, so wird es von dem Abstreifer 44 aus dem Raum zwischen Ober- und Untertrum des Förderbandes 10 entfernt. Durch die exzentrische Anordnung des Magnetsystems 20 in der Gurttrommel 12 und infolge des geringeren Durchmessers des Magnetsystems 20 wird verhindert, daß ein zwischen Gurttrommel 12 und Förderband 10 gelangendes Eisenteilchen 48 mit einer zu der Gurttrommel 12 höheren Geschwindigkeit von dem Magnetsystem mitgerissen wird, so daß, da das Eisenteilchen 48 durch Einfluß des Magnetsystems 20 keine sehr große Erwärmung erleidet, eine Beschädigung der Gurttrommel 12, d.h. beispielsweise ein Aufschlitzen dieser durch das Eisenteilchen 48 ausgeschlossen wird.If for some unpredictable and unwanted reason an
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89102517T ATE91090T1 (en) | 1988-04-25 | 1989-02-14 | MAGNETIC SEPARATOR. |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3813906 | 1988-04-25 | ||
DE8805463 | 1988-04-25 | ||
DE3813906 | 1988-04-25 | ||
DE8809072U DE8809072U1 (en) | 1988-04-25 | 1988-07-14 | Permanent magnetic separator |
DE3823944 | 1988-07-14 | ||
DE3823944A DE3823944C1 (en) | 1988-04-25 | 1988-07-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0339195A2 true EP0339195A2 (en) | 1989-11-02 |
EP0339195A3 EP0339195A3 (en) | 1990-07-11 |
EP0339195B1 EP0339195B1 (en) | 1993-06-30 |
Family
ID=39357434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89102517A Expired - Lifetime EP0339195B1 (en) | 1988-04-25 | 1989-02-14 | Magnetic separator |
Country Status (6)
Country | Link |
---|---|
US (1) | US5092986A (en) |
EP (1) | EP0339195B1 (en) |
JP (1) | JPH084759B2 (en) |
CA (1) | CA1337488C (en) |
DE (2) | DE3823944C1 (en) |
ES (1) | ES2041353T3 (en) |
Cited By (6)
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---|---|---|---|---|
EP0342330A2 (en) * | 1988-05-19 | 1989-11-23 | Lindemann Maschinenfabrik GmbH | Device for separating non magnetic metals from a solid mixture |
FR2657544A1 (en) * | 1990-01-29 | 1991-08-02 | Andrin G | MAGNETIC PARTICLE SEPARATOR AND NON-FERROUS METAL PIECES. |
FR2671494A1 (en) * | 1991-01-10 | 1992-07-17 | Andrin Fils Ets G | Magnetic separator for separating non-ferrous metal particles |
WO2002040171A1 (en) * | 2000-11-15 | 2002-05-23 | Steinert Elektromagnetbau Gmbh | Device and method for the separation of a metal-containing solids mixture |
DE202009014381U1 (en) | 2009-10-23 | 2010-12-09 | Imro Maschinenbau Gmbh | Device for the separation of non-ferrous metals |
CN111689131A (en) * | 2020-07-01 | 2020-09-22 | 新昌县林球机械配件厂 | Transportation line deironing device that building rubbish was retrieved |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3906422C1 (en) * | 1989-03-01 | 1990-10-18 | Lindemann Maschinenfabrik Gmbh, 4000 Duesseldorf, De | |
JPH084760B2 (en) * | 1989-08-08 | 1996-01-24 | 三菱製鋼磁材株式会社 | Rotary drum type non-magnetic metal separator |
JPH0653531U (en) * | 1991-01-25 | 1994-07-22 | 前田建設工業株式会社 | Belt conveyor |
JP2686006B2 (en) * | 1991-09-09 | 1997-12-08 | 富士写真フイルム株式会社 | Patrone recycling device and aligning device used therefor |
US5411147A (en) * | 1993-01-28 | 1995-05-02 | Bond; David S. | Dynamic landfill recycling system |
JPH0771645B2 (en) * | 1993-03-31 | 1995-08-02 | 豊田通商株式会社 | Conductive material sorting device |
DE4317640A1 (en) * | 1993-05-27 | 1994-12-08 | Nsm Magnettechnik Gmbh | Device for influencing the position of parts of electrically conductive, non-ferromagnetic materials, in particular for transporting and/or sorting such parts |
DE4323932C1 (en) * | 1993-07-16 | 1995-02-02 | Steinert Gmbh Elektromagnetbau | Magnetic system for particle separation |
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Cited By (12)
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EP0342330A2 (en) * | 1988-05-19 | 1989-11-23 | Lindemann Maschinenfabrik GmbH | Device for separating non magnetic metals from a solid mixture |
EP0342330A3 (en) * | 1988-05-19 | 1990-09-12 | Lindemann Maschinenfabrik Gmbh | Device for separating non magnetic metals from a solid mixture |
FR2657544A1 (en) * | 1990-01-29 | 1991-08-02 | Andrin G | MAGNETIC PARTICLE SEPARATOR AND NON-FERROUS METAL PIECES. |
EP0439983A2 (en) * | 1990-01-29 | 1991-08-07 | ETS G. ANDRIN ET FILS (Société Anonyme) | Magnetic separator for non-ferrous metal particles or pieces |
EP0439983A3 (en) * | 1990-01-29 | 1991-11-06 | Ets G. Andrin Et Fils (Societe Anonyme) | Magnetic separator for non-ferrous metal particles or pieces |
FR2671494A1 (en) * | 1991-01-10 | 1992-07-17 | Andrin Fils Ets G | Magnetic separator for separating non-ferrous metal particles |
WO2002040171A1 (en) * | 2000-11-15 | 2002-05-23 | Steinert Elektromagnetbau Gmbh | Device and method for the separation of a metal-containing solids mixture |
DE202009014381U1 (en) | 2009-10-23 | 2010-12-09 | Imro Maschinenbau Gmbh | Device for the separation of non-ferrous metals |
DE202010014509U1 (en) | 2009-10-23 | 2011-02-24 | Imro Maschinenbau Gmbh | Device for the separation of non-ferrous metals |
EP2314378A1 (en) | 2009-10-23 | 2011-04-27 | IMRO Maschinenbau GmbH | Device for separating non-ferrous metals |
CN111689131A (en) * | 2020-07-01 | 2020-09-22 | 新昌县林球机械配件厂 | Transportation line deironing device that building rubbish was retrieved |
CN111689131B (en) * | 2020-07-01 | 2022-03-15 | 浙江海致建设有限公司 | Transportation line deironing device that building rubbish was retrieved |
Also Published As
Publication number | Publication date |
---|---|
CA1337488C (en) | 1995-10-31 |
ES2041353T3 (en) | 1993-11-16 |
JPH02218451A (en) | 1990-08-31 |
DE8809072U1 (en) | 1988-10-06 |
US5092986A (en) | 1992-03-03 |
DE3823944C1 (en) | 1989-11-30 |
JPH084759B2 (en) | 1996-01-24 |
EP0339195B1 (en) | 1993-06-30 |
EP0339195A3 (en) | 1990-07-11 |
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