EP4054768A1 - Séparateur magnétique - Google Patents

Séparateur magnétique

Info

Publication number
EP4054768A1
EP4054768A1 EP20799649.7A EP20799649A EP4054768A1 EP 4054768 A1 EP4054768 A1 EP 4054768A1 EP 20799649 A EP20799649 A EP 20799649A EP 4054768 A1 EP4054768 A1 EP 4054768A1
Authority
EP
European Patent Office
Prior art keywords
magnetic separator
pot
permanent magnet
cover
flange
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
Application number
EP20799649.7A
Other languages
German (de)
English (en)
Other versions
EP4054768C0 (fr
EP4054768B1 (fr
Inventor
Christoph PAPAILIOU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Aseptomag AG
Original Assignee
GEA Aseptomag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEA Aseptomag AG filed Critical GEA Aseptomag AG
Publication of EP4054768A1 publication Critical patent/EP4054768A1/fr
Application granted granted Critical
Publication of EP4054768C0 publication Critical patent/EP4054768C0/fr
Publication of EP4054768B1 publication Critical patent/EP4054768B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/288—Magnetic plugs and dipsticks disposed at the outer circumference of a recipient
    • 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
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • 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
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • 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
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/284—Magnetic plugs and dipsticks with associated cleaning means, e.g. retractable non-magnetic sleeve
    • 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
    • B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
    • 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
    • B03C2201/28—Parts being designed to be removed for cleaning purposes

Definitions

  • the invention relates to a magnetic separator according to the preamble of the first claim.
  • a magnetic separator is used to remove magnetic and / or magnetizable particles, for example metal chips, from the fluid being processed.
  • the magnetic separator has a flow-through vessel in which a magnetic field is generated. With this magnetic field, magnetic and / or magnetizable particles are deposited from the fluid on parts of the vessel wall. At least one permanent magnet is preferably used, which is arranged in a pot which protrudes into the interior of the vessel and where the fluid flows around it. Magnetic and / or magnetizable particles are now deposited on this pot. Gradually, a layer forms on the wall of the pot exposed to the interior.
  • the magnetic separator must be opened in order to remove the accumulated magnetic and / or magnetizable particles. After cleaning, the magnetic separator is closed again and the process can be restarted and operated until the accumulated particles are again so numerous that cleaning is necessary.
  • the magnetic separator comprises a housing which has an interior space, a connection and a flange.
  • a cover is releasably connected to the flange and has a pot that can be introduced into the interior.
  • the magnetic separator has a magnet arrangement which comprises a permanent magnet that can be introduced into the pot. It is provided that the magnetic separator comprises a movable locking element for fixing the permanent magnet introduced into the pot, which is brought into a form fit by the connection of the cover and flange with the magnet arrangement. In this design of the magnetic separator, the permanent magnet is only fixed in one position in the pot when the magnet arrangement is connected to the housing.
  • the magnet arrangement is no longer connected to the housing. Then the permanent magnet can be removed from the pot, whereby the magnetic field on the pot is weakened or completely removed and the cleaning of the pot is much easier and therefore faster. At the same time, it prevents the permanent magnet from being removed from the pot during the process and the particles from entering the interior of the housing unintentionally.
  • the locking element is arranged on the cover.
  • the manufacture and construction of the magnetic separator are simplified if the locking element can be moved linearly.
  • the operation of the magnetic separator during maintenance is made easier in a development in that a restoring element is provided and the locking element is brought into positive engagement against a restoring force of the restoring element.
  • a control element is provided with which a movement of the permanent magnet is coupled to a displacement of the blocking element.
  • the control element can be attached to one of a locking element or a magnet arrangement.
  • the coupling has the effect that the permanent magnet can only be removed from the pot when the cover and flange are separated from one another. This prevents accidental removal of the permanent magnet when it is ready for use Condition of the magnetic separator.
  • the further training prevents contamination of the product.
  • the locking element comprises a control plate and the control plate has a groove in which a pin of the magnet arrangement is received and which runs obliquely to a direction of movement of the magnet arrangement. Pin and groove create a coupling that is easy to manufacture and that functions reliably.
  • the effect of the magnetic separator is improved by an enlarged magnetically active surface and, at the same time, an easily producible coupling is created if the magnet arrangement comprises at least two permanent magnets, each of the permanent magnets can be placed in its own pot and has a holder and the pin connects two holders with one another.
  • the pot is continued by a tubular extension on a side of the lid facing away from the pot. This acts as protection and guidance for the permanent magnet.
  • a protective cover is provided on a side of the lid facing away from the pot, into which the permanent magnet can be inserted and which is designed to shield the magnetic field. This prevents magnetic and / or magnetizable particles from attaching to the permanent magnet while it is not in the pot.
  • the protective cover includes a hood so that the permanent magnet is protected all around while it is not in the pot.
  • Fig. 3 Partial section through a magnetic separator of another development.
  • the magnetic separator has a housing 1 which has an interior 2.
  • a connection 3 provided on the housing 1 is designed to be connectable to a processing system and is fluidly connected to the interior 2. At least two connections are preferably provided and designed for the flow through the magnetic separator.
  • a flange 4 for receiving a cover 5 is formed on the housing 1.
  • a pot 8 is provided on the cover 5, which protrudes into the interior 2 of the magnetic separator and is designed so that process fluid can flow around it.
  • a permanent magnet 9 can be introduced into an interior of the pot 8, the magnetic field of which extends into the interior 2 of the magnetic separator and attracts magnetic and magnetizable particles there. These are deposited on a surface 10 of the pot 8 facing the interior 2.
  • several pots are provided, into each of which permanent magnets can be introduced. This improves the ratio of magnetic material and surface. There is more surface available, penetrated by a magnetic field, on which the magnetic and / or magnetizable particles are deposited.
  • the permanent magnet 9 is attached to a magnet arrangement 11.
  • the magnet arrangement 11 holds the permanent magnet 9 and effects a positioning within the pot 8.
  • the magnet arrangement 11 can be designed to be movable, in particular to be displaceable in a straight line along a first axis A. By moving the magnet arrangement 11, the permanent magnet 9 can be introduced into the pot 8 or removed from it. Removing the permanent magnet 9 is advantageous when cleaning the magnetic separator, since the magnetic field on the pot 8 is weakened or completely eliminated and the deposited particles can be removed from the surface 10 more easily.
  • the magnet arrangement 11 can comprise a rod 12, to whose end facing the pot 8 the permanent magnet 9 is attached.
  • the rod 12 passes through a hole 13 which is provided in the cover 5. A free diameter of the hole 13 is dimensioned such that the permanent magnet 9 can be moved through the hole.
  • the rod 12 is movably supported in a rod bearing 14, which rod bearing 14 is received in a holder 15 fastened to the cover 5.
  • a handle 16 can be provided with which the permanent magnet 9 can be manually moved out of the pot 8 and introduced into it.
  • This advantageously inexpensive and structurally simple design can alternatively be replaced or supplemented by a pneumatic, electrical or hydraulic actuating device.
  • a locking element 17 is arranged on the cover 5. This comprises a rod-shaped slide 18 which is mounted in a bearing block 19 by a slide bearing 20 such that it can be displaced along a second axis L.
  • Fig. 1 shows an operational state of the magnetic separator, in which the cover 5 rests on the flange 4 and the interior 2 is closed.
  • a first slide end 21 of the slide 18 contacts the flange 4.
  • a second slide end 22 forms a form fit with the magnet arrangement 11 by overlapping a locking disk 23 in such a way that the movement of the magnet arrangement 11 along the first axis A is prevented.
  • the movable locking element 17 for fixing the permanent magnet introduced into the pot 8 is brought into a form fit through the connection of the cover 5 and flange 4 to the magnet arrangement 11.
  • the form fit between the locking element 17 and the magnet arrangement 11 can be released and the magnet arrangement can be moved along the first axis A.
  • the permanent magnet 9 can then be removed from the pot 8.
  • a pretensioning device is provided on the locking element 17.
  • this comprises a thrust washer 24 arranged on the rod-shaped slide 18.
  • an im Example arranged as a spiral spring return element 25.
  • the reset element 25 is designed in such a way that it is mechanically tensioned when the cover 5 and flange 4 are connected to one another, and when the connection between flange 4 and cover 5 is loosened, this tension leads to a movement of the locking element 17, which creates the form fit between locking element 17 and magnet assembly 11 cancels.
  • the pressure disk 24 can alternatively be designed as a shoulder on the rod-shaped slide 18.
  • a protective cover 26 is provided, into which the permanent magnet 9 can be inserted and which is designed to shield the magnetic field.
  • This shielding can either be effected by a suitable material for the protective sheath 26, for example magnetically impermeable metal (MU metal).
  • MU metal magnetically impermeable metal
  • the protective cover 26 can be designed as a hood, so that the protective cover 26 completely encloses the permanent magnet 9 on the side of the lid 5 facing away from the pot 8.
  • Fig. 2 shows the magnetic separator of the first embodiment in a further development.
  • the first part of the development relates to the design and interaction of the locking element and magnet arrangement.
  • the locking element 17 ' comprises, as a control element, a control plate 27 which is connected to the slide 18', for example with the aid of a pin connection 28, which preferably has only a small amount of play.
  • the control plate has a groove 29 in which a pin 30 is received, which is attached to the magnet arrangement 11.
  • the groove 29 extends in a longitudinal direction R.
  • a width of the groove 29 and a diameter of the pin 30 are matched to one another so that the pin 30 can be moved in the groove 29 following the longitudinal direction R.
  • the longitudinal direction R is against the first axis A, along which the magnet arrangement 11 is movable, tilted. A movement of the magnet arrangement 11 and its pin 30 therefore causes the control plate 27 to move transversely to the direction of movement of the magnet arrangement 11.
  • the slide 18 ′ follows this transverse movement and moves along the second axis L.
  • the longitudinal direction R of the groove 29 is aligned in such a way that a movement of the magnet arrangement 11, which corresponds to the removal of the permanent magnet from the pot 8, causes a movement of the slide 18 ′, which prevents the cover 5 from being mounted on the flange 4.
  • an assembly is prevented in which the seal 7 and the seal seat 6 come into sealing contact.
  • a non-operational magnetic separator in which the permanent magnet 9 is not located in the pot 8 and therefore cannot fix any particles on the surface 10 of the pot 8, is very reliably prevented from being put into operation.
  • the slide 18 ' is brought into a position in which the cover 5 can be connected to the flange 4 and seal 7 and seal seat 6 come into contact.
  • the second part of the training concerns the pot. It is advantageous to continue the pot 8 on a side of the lid 5 facing away from the pot 8 with a tubular extension 31.
  • the extension of the tubular extension 31 above the cover 5 is dimensioned such that it offers protection to the permanent magnet 9 when it is removed from the pot 8.
  • the pipe extension 31 can be designed to guide the magnet arrangement 11.
  • the protective cover 26 ′ can comprise a foot 32 which is fastened to the cover 5 and can be connected to the flange 4.
  • a clamp 33 comprises foot 32 and flange 4 and creates a detachable connection between cover 5 and flange 4.
  • a second slide bearing 34 can be provided in foot 32, which is at a distance from slide bearing 20 and improves the guidance of slide 18 '.
  • Fig. 3 another development of the example of a magnetic separator is shown.
  • the magnet arrangement comprises an upper part 35, which can be designed as a plate which is arranged essentially parallel to the cover 5.
  • the upper part 35 has an edge 36 lying on the outside in a radial direction, which rests on the flange 4 when the magnetic separator is ready for operation.
  • a projection 37 pointing in the direction of the cover 5 is provided on a side of the upper part 35 facing the cover 5.
  • a receptacle 38 is provided for receiving the rod-shaped slide 18 when the magnetic separator is ready for operation, which is advantageously designed simply as a bore, for example.
  • Cover 5 and upper part 35 are designed to be detachably connected to one another.
  • the cover 5 can have a threaded pin 39 which, when the magnetic separator is ready for operation, passes through the upper part 35 and carries a nut 40 to secure the connection between the cover 5 and the upper part 35.
  • the interconnected cover 5 and upper part 35 are first lifted off the flange 4.
  • the restoring element 25 causes the slide 18 to be displaced along the second axis L in such a way that it is removed from the receptacle 38.
  • the upper part 35 can be lifted off the cover 5.
  • the permanent magnet 9 mechanically connected to the upper part is removed from the pot 8 when it is lifted off.
  • the cleaning of the surface 10 is made considerably easier by the removal. This structure advantageously ensures that the permanent magnet 9 can only be removed from the pot 8 when the magnetic separator is obviously transferred from the operational state to a non-operational state in which the cover 5 and upper part 35 are no longer connected to the housing 1 .
  • the assembly after cleaning is simplified if an inner wall 41, which faces the slide 18, forms a funnel section tapering in the direction of the interior 2, so that the slide 18 slides on a slope and is pushed radially inward in the direction of the permanent magnet.
  • This magnetic separator can also be improved by a control element. For example, according to the principle shown in FIG. 2, this can couple the distance between the upper part 35 and cover 5 to the radial position of the slide 18. This simplifies assembly and prevents incorrect operation.

Landscapes

  • Cookers (AREA)

Abstract

L'invention concerne un séparateur magnétique comportant un corps (1) qui présente un espace intérieur (2), un raccordement (3) et un rebord (4), comportant un couvercle (5), qui est relié de manière libérable au rebord (4) et présente une coupelle (8) qui peut être introduite dans l'espace intérieur (2), et un agencement d'aimants (11) qui comprend un aimant permanent (9) qui peut être introduit dans la coupelle (8). Afin d'améliorer les propriétés de maintenance, il est proposé de prévoir un élément d'arrêt mobile (17; 17') qui est destiné à fixer l'aimant permanent (9) introduit dans la coupelle (8) et qui est mis en prise par complémentarité de forme avec l'agencement d'aimants (11) en raison du raccordement entre le couvercle (5) et le rebord (4).
EP20799649.7A 2019-11-08 2020-10-23 Séparateur magnétique Active EP4054768B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH001415/2019A CH716778B1 (de) 2019-11-08 2019-11-08 Magnetabscheider.
PCT/EP2020/079892 WO2021089341A1 (fr) 2019-11-08 2020-10-23 Séparateur magnétique

Publications (3)

Publication Number Publication Date
EP4054768A1 true EP4054768A1 (fr) 2022-09-14
EP4054768C0 EP4054768C0 (fr) 2023-11-15
EP4054768B1 EP4054768B1 (fr) 2023-11-15

Family

ID=73037948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20799649.7A Active EP4054768B1 (fr) 2019-11-08 2020-10-23 Séparateur magnétique

Country Status (3)

Country Link
EP (1) EP4054768B1 (fr)
CH (1) CH716778B1 (fr)
WO (1) WO2021089341A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043063A (en) * 1990-03-21 1991-08-27 Eriez Manufacturing Company Magnetic trap and cleaning means therefor
US5470466A (en) * 1993-03-17 1995-11-28 Schaaf; William R. Method and apparatus for removing ferrous particles from coolant fluid during machining
GB2551830B (en) * 2016-06-30 2020-09-23 Adey Holdings 2008 Ltd Magnetic rod guide for a filter
GB2562772B (en) * 2017-05-25 2019-10-30 Vexo International Uk Ltd Fluid treatment

Also Published As

Publication number Publication date
CH716778A2 (de) 2021-05-14
CH716778B1 (de) 2023-04-28
EP4054768C0 (fr) 2023-11-15
EP4054768B1 (fr) 2023-11-15
WO2021089341A1 (fr) 2021-05-14

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