DE102022104337A1 - Separation drum and method for operating a separation drum - Google Patents

Abstract

Separation drum for separating objects from a stream of objects, the separation drum having a drum casing and at least one magnet system, the at least one magnet system having a plurality of permanent magnets, the permanent magnets being attached to a magnet carrier along a circular sector or cylinder sector, this magnet carrier is adjustable and wherein the drum shell is rotatably mounted about an axis of rotation. A position and/or orientation of the magnet system can be adjusted independently by means of a first adjustment device and by means of a second adjustment device.

Description

The invention relates to a separation drum according to the features of claim 1 and a method for operating a separation drum according to the features of claim 12.

When separating magnetic components from a flow of conveyed material, the optimal product selection and/or design for a desired separation result can often not be made in advance. For example, with a separating device with a high magnetic field strength, it can be found that the magnetic fraction is too heavily contaminated and contains too many fines and oxides, for example. Conversely, with magnet technology using weaker ferrite magnets, the separation performance can be too low. The common structure of magnetic belt rollers integrated in conveyor belts is a magnet system rotating with the conveyor belt roller with changing poles in the circumferential direction (series pole arrangement), so that magnetic particles are taken along the same pole around the drum when circulating and on the return, when the conveyor belt is lifted off the drum detach and fall off.

A structure with a fixed magnet system in a series pole arrangement, which may only be effective in one sector of a circle, cannot be integrated into a conveyor belt in many applications, since magnetic particles tend to remain on a magnetic pole or between two poles (position and alignment of the object with lowest magnetic reluctance or the lowest magnetic resistance) and thus slide or roll on the conveyor belt against the conveying direction.

A disk pole arrangement, on the other hand, generally describes a magnet arrangement within a cylindrical drum with pole change in the axial direction, regardless of the actual structure of a magnet system, so that the individual magnetic poles (north / south) run in a disk-like manner in the circumferential direction and thus essentially not on a path along the drum revolution alternate (However, depending on the design of the magnet system, the field strength can vary over the course of the rotation and, in a design in which the magnetically active area only extends over part of the circumference, weaker opposite poles could also form in front of and behind this magnetically active area. ).

Magnetic tape rollers in a disc pole arrangement are mainly found as solid drums with a revolving magnet system in separators for weakly magnetic material, sometimes called strong field separators or VA separators (stainless steel separators).

Magnetic drums (without conveyor belt) that rotate and material flows over them or that magn. Extracting particles from a material flow usually has a fixed magnet system in a series pole arrangement, which is only arranged in a circular sector and the drum surface thus has a magnetic and a non-magnetic area. In the non-magnetic area, the magnetizable sorting material detaches itself again. In this case, carrier strips are usually attached to the drum surface in order to transport magnetic particles over the rows of poles.

With an excavating arrangement and by the "snapping" of the magn. Particles on the next rows of poles can be achieved with magnetic drums with higher purity of the FE fraction ("iron"/ferromagnetic fraction).

Magnetic tape rollers, on the other hand, have the advantage that they can be integrated in a space-saving manner in a conveyor section or in the discharge point of a conveyor belt, and the integration costs are therefore generally lower and the arrangement is more space-saving.

However, conventional magnetic belt rollers have the problem that the material to be conveyed lying directly on the belt, which in many cases does not lie in a single layer, but runs over the drum with a certain bulk height, the separation performance and the achievable purity of the fractions is very limited.

Increased wear also occurs on the conveyor belt and the magnetic tape roller. This is caused on the one hand by magnetizable material that remains on the belt at the detachment point of the belt from the drum (FE drop) and rolls backwards there and by magnetic material that gets under the belt and sticks to the drum. In addition, as described at the beginning, the magnetic field strength of permanent magnet drums usually cannot be easily changed afterwards. Should it be necessary in applications to switch off a magnetic separating device in certain operating situations, this is also not possible with conventional magnetic tape reels.

The DE306172A discloses an electromagnetic separator consisting of two or more disk-shaped poles, which are spaced apart from one another on a common axis and are surrounded by a discharge drum. The disc-shaped poles are single or in pairs arranged to be rotatable about its axis, for the purpose of being able to move the increasing or decreasing fields individually in relation to the delivery point of the goods.

The DE963322B relates to a drum magnetic separator with a revolving drum and a fixed permanent magnet system arranged in this in a series pole arrangement, which extends over part of the circumference of the separator and in which the permanent magnet pieces are arranged one behind the other. A frame carrying the magnet pieces is pivotably suspended at a point lying eccentrically to the axis of rotation of the drum and the separation properties can thus be adjusted within narrow limits by means of a limited pivoting movement.

The DE3823944C1 describes a device for non-ferrous metal separation, in which a rapidly rotating magnet system is mounted eccentrically in a belt drum.

The EP2314378A1 describes a device for separating non-ferrous metals, in which a (rotating) magnetic pole drum is mounted eccentrically in a belt drum and the tilting angle can be steplessly adjusted if necessary.

The DE202013101935U discloses a separation drum for separating ferrous parts from a flow of material. This contains a rotating unit with a drive shaft and a drum shell secured against rotation on it by side disks with an internal, revolving permanent magnet arrangement for guiding the flow of material. The permanent magnet arrangement has an integral number of pole rods running axially to the drive shaft, preferably four. Their radially outward-facing magnetic surfaces are alternately magnetized in the circumferential direction of the drum shell. Furthermore, the pole rods are arranged radially symmetrically on the drive shaft and their magnetic surfaces are directed towards the inside of the drum shell in such a way that there is a magnetic adhesion area for ferrous parts in the material flow on the outside. In the drum shell, the pole rods can be extended radially symmetrically to the drive shaft in the direction of the inside of the drum shell or retracted from the inside in the direction of the drive shaft.

The EN202012101666U1 relates to a separating drum for separating ferrous parts from a material flow, with a drum shell around a drive shaft made of a non-magnetizable material for guiding the material flow, and a permanent magnet arrangement made of at least two mutually magnetized pole rods, which are arranged in the drum shell in such a way that on the outside of the drum shell results in a sticking area for ferrous parts in the material flow. The pole rods can be pivoted in pairs with the magnetic surfaces on top from an initial position located approximately radially below the inside of the drum shell towards each other about a longitudinal axis, so that the distance between the magnetic surfaces on top of pole rods that can be pivoted in pairs towards each other and thus the density and spread of the magnetic Field lines in the adhesion area for ferrous parts on the drum shell can be adjusted.

The object of the invention is to provide a separating drum for separating objects, in particular particles, and a method for operating a separating drum.

The object is achieved according to the invention by the features of claim 1 or 12.

The separating drum according to the invention for separating objects, in particular ferromagnetic particles, from a stream of objects, in particular particles, has magnets whose position can be changed.

The present invention is intended to significantly improve or eliminate the problems mentioned, in particular when used as a magnetic tape roll in a conveyor belt.

It relates to a device with adjustable separating properties for separating magnetic materials from a material flow, with a magnetically active area made of permanent magnets inside a drum describing a circular sector or cylinder sector (preferably between 90° and 270°) and this being adjusted radially or in the circumferential direction and independently of this, the field strength on the drum surface can be changed. The field strength on the drum surface is changed by changing the distance between the magnetically active area of the internal magnet system and the drum surface.

In a preferred embodiment, the magnet system active in a circular sector is arranged eccentrically with one axis in a drum and both the eccentric position and/or the eccentric distance from the drum axis and the start of the magnetically active area during drum rotation are adjustable. The associated adjustment and locking is preferably accessible from the outside.

The eccentric arrangement of a cylinder-shaped or cylinder-sector-shaped magnet system within a larger-diameter drum sers has the advantage that it can be set in such a way that the distance to the drum surface or to the conveyor belt increases over the course of the circulation and thus the magnetic field strength at the point at which the magnetic fraction is ejected decreases. Magnetic particles in this area are therefore more easily detached from the drum surface or from the belt. This effect can be supported by a weakening magnet arrangement in the beginning and/or end area.

When used as a roll of magnetic tape in a conveyor belt, the magnet system is preferably designed as a disc pole arrangement for easier entrainment of magnetic particles around the drum.

The magnet system is preferably adjusted on a stationary drum disk, with the rotating drum casing being able to rotate around this drum disk either by means of a bearing with a large diameter, or all adjustment options are carried out coaxially to the drum axis. In a preferred embodiment, the drum casing on the second drum side can be driven via a connected axle.

The bulk height of the material and the separation properties and performance can also be adjusted by frequency control of the conveyor belt and/or drum drive and thus changing the conveying speed of the material flow over the drum and the magnet system.

Since the alignment or setting of the magnet system cannot be seen when the drum is closed, these parameters should preferably be made visible on the outside of the drum. This can be done either via an analog display unit on at least one side of the drum, which is mechanically or electrically coupled to the magnet system, or via a digital display unit, which displays the set parameters or preferably visualizes them graphically.

In the present permanent magnet separator, both the magnetic field strength on the drum or belt surface and the starting point of the magnetic area of influence and/or the magnetic field can be adjusted independently of one another, in particular at a stationary reference point.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

• 1a Schematische Darstellung eines Ausführungsbeispiels einer Anlage zum Sortieren von Objekten;
• 1b schematische Darstellung eines anderen Ausführungsbeispiels einer Anlage zum Sortieren von Objekten, bei dem ferromagnetische Objekte von einer Förderstrecke ausgehoben werden;
• 1c schematische Darstellung eines weiteren Ausführungsbeispiels einer Anlage zum Sortieren von Objekten, bei dem das Magnetsystem in einer von Material überlaufenen Magnettrommel angeordnet ist.
• 2 eine exemplarische Darstellung eines Querschnittes einer möglichen Ausführung einer Separationstrommel zum Trennen von Objekten, wobei jeweils gemeinsam bewegliche Baueinheiten mit einheitlicher Schraffur dargestellt sind;
• 3 eine exemplarische Darstellung eines seitlichen Querschnittes einer möglichen Ausführung einer Separationstrommel zum Trennen von Objekten;
• 4 eine schematische Darstellung einer schrägen Seitenansicht auf die Trommel mit teilweise als verdeckte Kanten sichtbarem Magnetsystem bzw. Polflächen in einer Scheibenpolanordnung, wobei die Verstell- und Arretiereinrichtungen, sowie eine exemplarische außenliegende Visualisierung der Position und Ausrichtung des Magnetsystems, dargestellt sind;
• 5a. eine schematische Darstellung eines seitlichen Querschnittes einer möglichen Ausführung einer Separationstrommel zum Trennen von Objekten;
• 5b. eine schematische Darstellung eines seitlichen Querschnittes einer möglichen alternativen Ausführung einer Separationstrommel zum Trennen von Objekten;
• 6 a bis e schematische Darstellung beispielhafter Einstellungen für verschiedene Abscheideeigenschaften beim Einsatz entsprechend 1a mit:
  1. a. starke Eisenabscheidung
  2. b. schwache Eisenabscheidung / Grobeisenabscheidung
  3. c. alternative starke Eisenabscheidung
  4. d. Eisenabscheidung aus dem freien Wurf
  5. e. Deaktiviert / keine Eisenabscheidung.

Show it:

• 1a Schematic representation of an embodiment of a system for sorting objects;
• 1b Schematic representation of another exemplary embodiment of a system for sorting objects, in which ferromagnetic objects are lifted out of a conveying path;
• 1c schematic representation of a further exemplary embodiment of a system for sorting objects, in which the magnet system is arranged in a magnet drum overflowing with material.
• 2 an exemplary representation of a cross section of a possible embodiment of a separating drum for separating objects, wherein in each case jointly movable structural units are represented with uniform hatching;
• 3 an exemplary representation of a lateral cross-section of a possible embodiment of a separation drum for separating objects;
• 4 a schematic representation of an oblique side view of the drum with partially visible as hidden edges magnet system or pole faces in a disc pole arrangement, wherein the adjustment and locking devices, as well as an exemplary external visualization of the position and alignment of the magnet system, are shown;
• 5a . a schematic representation of a lateral cross section of a possible embodiment of a separation drum for separating objects;
• 5b . a schematic representation of a lateral cross-section of a possible alternative embodiment of a separation drum for separating objects;
• 6 a to e schematic representation of exemplary settings for different separation properties in use accordingly 1a with:
  1. a. strong iron deposition
  2. b. weak iron deposition / coarse iron deposition
  3. c. alternative strong iron deposition
  4. i.e. Iron deposition from the free throw
  5. e. Disabled / no iron deposition.

Plants (in particular recycling plants) for sorting objects, in particular particles, are used, for example, for sorting garbage, slag, old glass, etc., in order to separate valuable materials, for example metals (iron or steel, aluminum, copper, etc.) and/or non-metals (plastics, etc.).

A system 01 for sorting objects 02, 03, in particular particles (in particular into at least two fractions), has at least one first conveyor section 04, in particular transport device 04, preferably at least one second conveyor section 06, in particular transport device or collecting chute 06, preferably one through a separating edge 10 or a third conveyor section 07, in particular a transport device or collecting chute 07, and at least one separating drum 08, separate therefrom.

In one embodiment, in which the transport device 04 runs as a conveyor belt around the separation drum 08, its conveying speed is preferably adjustable, so that different discharge parabolas 35a, 35b and material distributions on the conveying section 04 can be achieved.

Separation drum 08 has a drum shell 09 and at least one magnet system 11. The at least one magnet system 11 has a plurality of magnets 12, in particular permanent magnets 12, for forming a magnetic field. The magnets 12 are attached to a magnet carrier 13 . This magnet carrier 13 is adjustable, preferably pivotable about a pivot axis 14, in particular mounted on at least one further carrier 16 by means of fastening elements, for example pins of a pivot shaft.

At least the drum shell 09 is rotatably mounted by means of at least one bearing 17. For example, a bearing 17, for example a roller bearing, is provided at each end of the drum shell 09. These bearings 17 are arranged on hubs. In the present example, the hubs are designed as side disks 16 and/or as the further carrier of the magnet carrier 13 . In particular, the carrier of the magnet carrier 13 is designed as this side panel 16 . The magnet carrier 13 is mounted in the side windows 16 so that it can pivot about its pivot axis 14 . The drum shell 09 is preferably mounted such that it can rotate about an axis of rotation 18 relative to the, for example two, side disks 16 and/or carrier of the magnet carrier 13. The side plate 16 and/or the carrier of the magnet carrier 13 can be adjusted, in particular pivoted and/or rotated, relative to the axis of rotation 18 of the drum shell 09, preferably in the circumferential direction of the drum shell 09. The magnet carrier 13 is in particular adjustable, preferably pivotable and/or rotatable, relative to the side window 16 and/or the carrier of the magnet carrier 13 . In particular, a pivot axis 14 of the magnet carrier 13 is arranged at a distance a1, in particular eccentrically, in the radial direction from the axis of rotation 18 of the drum shell 09. The magnet carrier 13, in particular the pivot axis 14 of the magnet carrier 13, is arranged to be rotatable, pivotable or displaceable about the axis of rotation 18 of the drum casing 09 in the circumferential direction by means of a first adjustment device 21. The magnet carrier 13 can be moved, preferably pivoted, relative to the side window 16 and/or the carrier of the magnet carrier 13 by means of a second adjustment device 22 .

The second adjustment device 22 has in particular a power transmission element, in particular a gear 23 with gear elements 24, in particular gears. A first gear element 24 and, for example, a second gear element 24 that interacts with the first gear element 24 are arranged in an interior space of the drum casing 09 that is defined in particular by the side disks 16 and/or the carrier of the magnet carrier 13. The first gear element 24 is connected to the pivot axis 14 of the magnet carrier 13 . The second gear element 24 is connected, for example, to an actuating element located outside of the interior via a shaft protruding through the side window 16 and/or the carrier of the magnet carrier 13 . The actuating element can be actuated manually or remotely by means of an actuator. In a preferred embodiment, when adjusting by means of a preferably electric actuator, this is arranged inside the separation drum 08 directly on the shaft of the magnet carrier 13 or on at least one gear element 24 or power transmission element.

The adjustment of the side panel 16 relative to the axis of rotation 18 of the drum casing 09 and the adjustment of the magnet carrier 13 relative to the side panel 16 are preferably independent of one another. At least the actuation of the first setting device 21 and/or the second setting device 22 takes place outside of the drum shell 09, in particular outside of a space defined by the side windows 16 and/or the carrier of the magnet carrier 13. At least one actuating element of the first setting device 21 and/or one actuating element of the second setting device 22 is/are arranged outside of the drum shell 09, in particular outside of a space defined by the side windows 16 and/or the carrier of the magnet carrier 13.

At least one display device 26 is preferably provided for visualizing the position and/or alignment of the magnet system 11, in particular the magnet carrier 16, relative to a side window 16 and/or for visualizing the position of the side window 16 in relation to a stationary point and/or frame. A first fixing device 27 is preferably provided for fixing the side window 16 relative to the axis of rotation 18 of the drum shell 09 and/or for stationary fixing. A second fixing device 28 is preferably provided for fixing the magnet carrier 13 relative to the side window 16 and/or for stationary fixing.

In the present exemplary embodiment, the two side disks 16 provided at the ends of the drum shell 09 are connected by means of a torsion element and/or a traverse 29, so that the two side disks 16 are adjusted together. In a preferred embodiment, the traverse 29 acts at the same time as a balancing mass, so that the torques or forces required to adjust the side windows 16 are reduced.

Both side windows 16 can each be provided with a bearing pin 31 .

In the present exemplary embodiment, only one of the two side windows 16 is provided with a bearing pin 31 . This bearing journal 31 is, in particular, part of the first adjustment device 21. By pivoting the bearing journal 31, the side disk 16 connected to it and the opposite side disk 16 arranged at the other end of the drum shell 09 are moved relative to the drum shell 09 in the circumferential direction of the drum shell 09 and/or relative to a fixed point and/or frame adjusted. This bearing pin 31 is arranged pivotably in a bearing 32 fastened to a stationary frame.

At the opposite end of the drum shell 09 in this exemplary embodiment, a second bearing pin 33 is connected to the drum shell 09 in a rotationally fixed manner. This second bearing pin 33 is rotatably arranged in a bearing 34 fastened to a stationary frame and is connected, for example, to a drive. For example, the rotation of the drum shell 09 takes place via this second bearing journal 33. The drum shell 09 rotates in an operating state for sorting objects.

The magnet carrier 13 has a plurality of magnets 12, which are arranged approximately within a cylindrical envelope surface or within a cylinder sector. Only a part is provided with magnets 12 in relation to a circumferential direction. A sector defined by the enveloping surface, in particular a circular sector or a cylindrical sector, has a central angle α (alpha).

The magnets 12 arranged on the magnet carrier 13 are preferably arranged along an arc (in particular a circular arc) of a sector (in particular a circular sector) with a central angle α (alpha). Optionally, the field strength can be made weaker in the beginning and/or end area of this magnetic sector, for example by fewer magnets12, a different magnet or pole face geometry 12b and/or the pole faces being set back behind (within) the cylindrical envelope surface.

For example, the magnet carrier 13 is approximately tubular. The magnets 12 are arranged circumferentially at a center angle α (alpha), where α is between 90 and 270 degrees in a preferred embodiment.

In order to reduce the required turning and/or adjustment torques, at least one balancing mass 15 can optionally be attached to the magnet carrier 13 opposite the magnet arrangement and/or spring elements, particularly in the case of large widths and/or diameters of the magnet system 11 .

In one possible embodiment, the magnets 12 unwound in one plane are arranged in a matrix. In a preferred embodiment, the columns (related to the circumferential direction of the drum shell) of this matrix each have

Magnets 12 of the same polarity, the magnets 12 of the rows (relative to the axial direction of the drum shell 09) having alternating opposite polarity. This is also known as a disc pole arrangement. Disks or segments are provided with pole faces of the same polarity in the circumferential direction. Disks or segments lying next to one another in the axial direction have alternating pole faces with different polarity.

In an operating state for sorting objects, the magnets 12 and/or the magnet carrier 13 are stationary and/or not rotating (except for the adjustment process).

In particular, by pivoting or adjusting the side window 16 and/or the carrier of the magnet carrier, the position and/or the beginning and/or the end of the magnet carrier 13 and/or the magnets 12 and/or the magnet system (11) and/or of the magnet field relative to an exemplary reference point 36 or 41, preferably in the circumferential direction of drum shell 09. Reference point 36 is defined, for example, as the intersection of a vertical line 37 with an outer surface of drum shell 09. The reference point 41 can also be defined, for example, as a point on the surface of the drum shell 09 or a conveyor belt, at which the objects 02, 03 transition into a free throw. Another reference point 38, in particular of the magnets 12 and/or a pole face, is defined, for example, by a position or corner point of a first magnet 12 or pole face on the magnet carrier 13, in particular viewed in the circumferential direction.

In an arrangement with a pivot axis 14 of the magnet carrier 13 arranged eccentrically to the axis of rotation 18 of the drum shell 09, for example correspondingly 5a the eccentric angle or adjustment angle β (beta) is defined, for example, between a straight line 39 through the axis of rotation 18 and the pivot axis 14 and a vertical 37 . When adjusting the pivot axis 14 of the magnet carrier 13 along a straight line, for example accordingly 5b or along a curved trajectory there is at least one variable dimension a1, which defines the position of the pivot axis 14 of the magnet carrier 13 in one spatial direction.

Changing the position of the pivot axis 14 of the magnet carrier 13, in particular by turning or moving the side plate 16 and/or the carrier of the magnet carrier 13, causes a change in the distance a2 between a fixed reference point 41 and the nearest magnet or pole surface and thus a change in the Field strength of the magnetic field at this reference point 41.

In particular, by pivoting the magnet carrier 13 about its pivot axis 14, there is a change in the position of the magnets 12 and/or the magnetic poles, in particular a reference point 38 relative to a reference point 41, preferably in the circumferential direction of the drum casing 09. The reference point 38 of the magnets 12 and/or or the pole faces and a straight line 44 running through the pivot axis 14 of the magnet carrier 13 and a straight line 42 running vertically through the pivot axis 14 of the magnet carrier 13 define a twisting angle γ (gamma).

An adjustment of the magnet carrier 13 about its pivot axis 14 is therefore equivalent to a change in the angle γ (gamma) and thus the reference point 38 is shifted, for example, in the circumferential direction to the reference point 41 or 36, in particular also in the conveying direction in front of or behind these reference points 36, 41 and thus changes the separation properties. Regardless of this, by adjusting the angle β (beta) and/or at least one distance a1, the strength of the magnetic field at a reference point (e.g. 36 or 41) on the drum shell 09 and/or the course of the field strength during one revolution around the drum shell 09 can be changed.

A position and/or orientation of the permanent magnets 12 of the magnet system 11 can be adjusted independently by means of the first adjustment device 21 and by means of the second adjustment device 22 . A field strength and a position and/or the beginning and/or the end of a magnetic field of the permanent magnets 12 can be adjusted relative to a stationary reference point 36, 41.

Reference List

01

Attachment

02

object non-magnetic

03

object magnetic

04

Conveyor line, first

05

container

06

conveyor line, second; catchment chute

07

conveyor line, third; catchment chute

08

separation drum

09

drum shell

10

parting vertex, parting edge

11

magnet system

12

Magnet, permanent magnet

12b

magnet

13

magnet carrier

14

pivot axis

15

balancing mass

16

side window; Carrier of the magnet carrier

17

camp

18

axis of rotation

19

-

20

-

21

Adjuster, first

22

Adjuster, second

23

transmission

24

gear element

25

-

26

display device

27

Fixator, first

28

Fixator, second

29

traverse

30

-

31

bearing journal

32

storage

33

bearing journal

34

storage

35a

throw parabola

35b

throw parabola

36

reference point

37

vertical

38

reference point

40

-

41

reference point

42

vertical

44

Straight

45

-

46

Straight

a1

Eccentricity / distance between the axis of rotation of the magnet carrier and the axis of the drum

a2

Distance pole surface - reference point

α (alpha)

central angle

β (beta)

opening angle (axis rotation angle)

γ (gamma)

Opening angle (angle of rotation of the magnet system)

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 306172 A [0011]
• DE 963322 B [0012]
• DE 3823944 C1 [0013]
• EP 2314378 A1 [0014]
• DE 202013101935 U [0015]
• DE 202012101666 U1 [0016]

Claims (15)

Separation drum (08) for separating objects (02, 03) from a stream of objects (02, 03), the separating drum (08) having a drum casing (09) and at least one magnet system (11), the at least one magnet system ( 11) has a plurality of permanent magnets (12), the permanent magnets (12) being attached to a magnet carrier (13) along a sector of a circle or cylinder, this magnet carrier (13) being adjustable, the drum shell (09) rotating about an axis of rotation ( 18) is rotatably mounted, characterized in that a position and/or orientation of the magnet system (11) can be adjusted independently by means of a first adjustment device (21) and by means of a second adjustment device (22). separation drum claim 1 , characterized in that a field strength and a position and/or the beginning and/or the end of a magnetic field of the permanent magnets (12) can be adjusted relative to a stationary reference point (36, 41). separation drum claim 1 and/or 2, characterized in that the drum shell (09) is mounted to rotate about the axis of rotation (18) relative to the side disks (16) of the separating drum (08) and that the side disks (16) and/or carrier of the magnet carrier are adjustable. separation drum claim 1 and/or 2 and/or 3, characterized in that the magnet carrier (13) is adjustably mounted on the side windows (16) and/or on the carrier of the magnet carrier. separation drum claim 1 and/or 2 and/or 3 and/or 4, characterized in that the side discs (16) can be pivoted about an axis of rotation (18) of the drum casing (09). separation drum claim 1 and/or 2 and/or 3 and/or 4 and/or 5, characterized in that a pivot axis (14) of the magnet carrier (13) in the radial direction to the axis of rotation (18) of the drum casing (09) at a distance (a1 ) is arranged. separation drum claim 1 and/or 2 and/or 3 and/or 4 and/or 5 and/or 6, characterized in that the magnet carrier (13) and the side discs (16) and/or the carrier of the magnet carrier can be adjusted independently of one another. separation drum claim 1 and/or 2 and/or 3 and/or 4 and/or 5 and/or 6 and/or 7, characterized in that by means of the first adjustment device (21) the magnet carrier (13) about its pivot axis (14) within the drum shell (09) is arranged adjustably and that by means of the second adjustment device (22) the magnet carrier (13) is arranged to be movable relative to the side windows (16) and/or the carrier of the magnet carrier. separation drum claim 1 and/or 2 and/or 3 and/or 4 and/or 5 and/or 6 and/or 7 and/or 8, characterized in that at least one actuating element of the first setting device (21) and/or one actuating element of the second setting device (22) is/are arranged outside of the drum casing (09). separation drum claim 1 and/or 2 and/or 3 and/or 4 and/or 5 and/or 6 and/or 7 and/or 8 and/or 9, characterized in that at least one display device (26) for visualizing the position and/or Alignment of the magnet carrier (13) is provided relative to the side windows (16) and / or for visualizing the alignment of the side windows (16) to a fixed point. separation drum claim 1 and/or 2 and/or 3 and/or 4 and/or 5 and/or 6 and/or 7 and/or 8 and/or 9 and/or 10, characterized in that the permanent magnets (12) are arranged in a disc pole arrangement are that disks or segments of this disk pole arrangement are provided with pole faces of the same polarity in the circumferential direction and that disks or segments lying next to one another in the axial direction have alternating pole faces of different polarity. Method for operating a separating drum (08) for separating objects (02, 03) from a stream of objects (02, 03), wherein the separating drum (08) has a drum casing (09) and at least one magnet system (11), wherein the at least one magnet system (11) has a plurality of permanent magnets (12), the permanent magnets (12) being arranged in a disc pole arrangement, discs or segments of this disc pole arrangement being provided with permanent magnets (12) of the same polarity in the circumferential direction, with the same polarity in the axial direction adjacent discs or segments have alternating permanent magnets (12) with different polarity, the permanent magnets (12) being attached to a magnet carrier (13), this magnet carrier (13) being adjustable and stationary during operation, the drum shell ( 09) around an axis of rotation (18) rotates relative to side windows (16) and/or to a carrier of the magnet carrier during operation, characterized in that a field strength and a position and/or the beginning and/or the end of the magnetic field generated by the permanent magnets (12). be adjusted independently. Method for operating a separation drum claim 12 , characterized in that the magnet carrier (13) is adjusted about its pivot axis (14) within the drum casing (09) by means of a first adjustment device (21) and that the magnet carrier (13) is adjusted relative to the side windows ( 16) and/or to the carrier of the magnet carrier. Method for operating a separation drum claim 12 and/or 13, characterized in that the first setting device (21) and/or the second setting device (22) is actuated outside of the drum shell (09). Method for operating a separation drum claim 12 and/or 13 and/or 14, characterized in that by means of at least one display device (26) the position and/or alignment of the magnet system (11) relative to a side window (16) and/or the position of the side window (16) to a stationary point is visualized.

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