EP2323772A1 - Procédé et dispositif de séparation de particules ferromagnétiques d'une suspension - Google Patents

Procédé et dispositif de séparation de particules ferromagnétiques d'une suspension

Info

Publication number
EP2323772A1
EP2323772A1 EP09782747A EP09782747A EP2323772A1 EP 2323772 A1 EP2323772 A1 EP 2323772A1 EP 09782747 A EP09782747 A EP 09782747A EP 09782747 A EP09782747 A EP 09782747A EP 2323772 A1 EP2323772 A1 EP 2323772A1
Authority
EP
European Patent Office
Prior art keywords
reactor
suspension
suction
permanent magnet
ferromagnetic particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09782747A
Other languages
German (de)
English (en)
Inventor
Vladimir Danov
Andreas SCHRÖTER
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.)
BASF SE
Siemens AG
Original Assignee
BASF SE
Siemens 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 BASF SE, Siemens AG filed Critical BASF SE
Publication of EP2323772A1 publication Critical patent/EP2323772A1/fr
Withdrawn legal-status Critical Current

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
    • B03C1/025—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
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
    • 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

Definitions

  • the invention relates to a device for separating ferromagnetic particles from a suspension, comprising a tubular reactor through which the suspension can flow with at least one magnet.
  • the ore is ground to powder and the resulting powder mixed with water.
  • This suspension is exposed to a magnetic field generated by one or more magnets, so that the ferromagnetic particles are attracted, whereby they can be separated from the suspension.
  • a device for separating ferromagnetic particles from a suspension in which a drum consisting of iron rods is used.
  • the iron rods are alternately magnetized as the drum rotates, causing ferromagnetic particles to adhere to the iron rods, while other components of the suspension fall between the iron rods.
  • DE 26 51 137 A1 describes an apparatus for separating magnetic particles from an ore material, in which the suspension is passed through a tube which is surrounded by a magnetic coil.
  • the ferromagnetic particles accumulate at the edge of the tube, other particles are separated by a central tube, which is located inside the tube.
  • a magnetic separator is described in US 4,921,597 B.
  • the magnetic separator has a drum on which a plurality of magnets are arranged.
  • the drum is opposite to the flow direction of the suspension. rotates so that ferromagnetic particles adhere to the drum and are separated from the suspension.
  • a process for the continuous magnetic separation of suspensions is known from WO 02/07889 A2.
  • a rotatable drum is used in which a permanent magnet is mounted to deposit ferromagnetic particles from the suspension.
  • a tubular reactor is used to separate the ferromagnetic particles from the suspension, through which the suspension flows.
  • one or more magnets are arranged, which attract the contained ferromagnetic particles.
  • the ferromagnetic particles migrate to the reactor wall and are held by the magnet arranged on the outside of the reactor.
  • the invention has for its object to provide a device for separating ferromagnetic particles from a suspension, in which the deposition process can be carried out continuously and efficiently.
  • the reactor has at least one suction line which can be acted upon by negative pressure and which is surrounded by a permanent magnet in the region of the branch.
  • deposited ferromagnetic particles can be removed through the suction line and thus separated from the suspension.
  • the device according to the invention thus has the advantage that in order to remove the ferromagnetic particles from the suspension, the reactor does not have to be stopped. Accordingly, the deposition of the ferromagnetic particles can be carried out continuously with the device according to the invention.
  • the permanent magnet is surrounded by a magnetic field control enabling coil winding.
  • magnetic field control the magnetic field of the permanent magnet can be increased or decreased. In this way, the zone of influence can be adjusted, are attracted within the ferromagnetic particles, which are then separated via the suction line of the suspension.
  • the device according to the invention may have a plurality of suction lines arranged one behind the other in the flow direction, which are each surrounded in the region of the branch by a permanent magnet.
  • the several suction lines can be arranged in cascade fashion in the flow path of the suspension so that, as the suspension flows through the reactor, further ferromagnetic particles are gradually removed from the suspension.
  • the device according to the invention it can also be provided that it has a plurality of suction lines arranged distributed in the circumferential direction of the reactor, which are each surrounded in the region of the branch by a permanent magnet. With such an arrangement, virtually the entire flow cross section can be acted upon by a magnetic field, so that a very large proportion of the ferromagnetic particles contained in the suspension can be removed from the suspension by means of the suction lines.
  • the suction line of the device according to the invention preferably each suction line, has a controllable shut-off valve. By a control device each shut-off valve can be opened and closed.
  • the ferromagnetic particles When a shut-off valve is opened, the ferromagnetic particles, which have accumulated under the influence of the magnetic field, pass through the negative pressure in the suction line and can be collected at another location.
  • the negative pressure may be generated by a pump or the like, for example.
  • suction lines are connected to each other. Interconnected suction lines can be used simultaneously to aspirate accumulated ferro- magnetic particles by simultaneously opening the associated shut-off valves. If several suction lines are connected to each other, a single device for generating the negative pressure, such as a pump to suck the ferromagnetic particles from all suction lines is sufficient.
  • the suction line in particular several or all suction lines, is or are connected to a reflux line opening into the reactor.
  • a suspension can be fed to the reactor several times until the proportion of the contained ferromagnetic particles has fallen below a specified limit.
  • the or a permanent magnet may be formed as a ring magnet, so that it surrounds the suction line.
  • the invention relates to a method for separating ferromagnetic particles from a suspension, with a flow-through the suspension tubular reactor with at least one magnet.
  • the reactor has at least one suction line, which can be acted upon by negative pressure and branch off from the reactor, which is surrounded by a permanent magnet, via which the ferromagnetic particles are deposited.
  • FIG. 1 shows a device according to the invention for separating ferromagnetic particles from a suspension in a sectional view
  • FIG. 2 shows the device of FIG. 1 with attached ferromagnetic particles
  • FIG. 3 shows the device of FIG. 1 during suction of the deposited ferromagnetic particles
  • FIG. 4 shows a device according to the invention in a plan view
  • Fig. 5 shows another embodiment of a device according to the invention.
  • the device 1 shown in FIGS. 1 to 3 comprises a tubular reactor 2, which has a plurality of suction lines 3.
  • the reactor 2 has a plurality of suction lines 3 arranged one behind the other in the direction of flow, with two suction lines 3 facing each other.
  • Each suction line 3 is surrounded by a ring-shaped permanent magnet 4.
  • Each permanent magnet 4 is of surrounded by a coil winding 5, with which the magnetic field generated by the permanent magnet 4 can be amplified or attenuated.
  • the coil windings 5 are connected to a control device, not shown.
  • Each suction line 3 can be closed or opened by means of a shut-off valve 6.
  • the various suction lines 3 open into suction lines 7, in each of which a negative pressure generating pump 8 is located.
  • a suspension 10 is supplied.
  • This suspension consists of water, ground ore and possibly sand.
  • the grain size of the milled ore can vary.
  • ferromagnetic particles 11 deposit on the inside of the reactor 2 in the region of the permanent magnets 4, as shown in FIG. These deposits are formed on all permanent magnets 4, which are arranged one behind the other in the flow direction in the reactor 2. Since the shut-off valves 6 are closed, the ferromagnetic particles in the suction lines 3 reach only up to the shut-off valves 6. By the coil windings 5, the strength of the magnetic fields of the permanent magnets 4 can be controlled, that is, the size of the magnetic fields can be increased or decreased.
  • FIG. 3 shows the device 1 during the aspiration of the ferromagnetic particles.
  • the shut-off valves 6 have been opened by a control device.
  • a pump 8 By a pump 8, a negative pressure has been generated in the suction lines 7, which are connected to the suction lines 3.
  • the ferromagnetic particles are separated from the suspension 10 via the suction lines 3 and the suction lines 7, so that they can be collected in a reservoir.
  • the suction of the ferromagnetic particles is carried out at reduced magnetic force by the coil winding 5 are controlled accordingly.
  • the ferromagnetic particles are separated from the suspension with high purity, wherein the separation behavior can be influenced by controlling the magnetic fields via the coil winding 5.
  • the non-ferromagnetic particles remaining in the suspension leave the reactor 2 via an outlet 17.
  • FIG. 4 shows a device 16 for depositing ferromagnetic particles in a plan view.
  • FIG. 4 shows several suction lines 3 distributed over the circumference open into the reactor 2.
  • Each suction line 3 is surrounded by a permanent magnet 4, the permanent magnets 4 are arranged in segments around the reactor 2 and polarized sectorwise.
  • the shut-off valves 6 close the suction lines 3.
  • ferromagnetic particles deposit on the inside of the reactor 2 and enter the suction lines 3.
  • Other non-ferromagnetic particles such as sand flow axially through the reactor 2 uninfluenced.
  • FIG. 5 shows a further embodiment of a device 12 for separating ferromagnetic particles from a suspension, identical components being identified by the same reference numerals.
  • the device 12 comprises a reactor 2 with a plurality of suction lines 3, which open into common suction lines 7, in which negative pressure is generated by means of a pump 8.
  • a pump 8 By opening the shut-off valves 6, ferromagnetic particles which have accumulated on the inside of the reactor 2 can be sucked off, wherein the magnetic field can be simultaneously reduced by the coil winding 5.
  • the suction lines 7 is a branch 13 to which a return line 14 is connected, which can be opened or closed controlled by a shut-off valve 15. When the shut-off valve 15 is closed, get the ferromagnetic particles to a reservoir, not shown.

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne un dispositif de séparation de particules ferromagnétiques d'une suspension, comportant un réacteur de forme tubulaire qui est traversé par la suspension et qui comporte au moins un aimant, le réacteur (2) présentant au moins un conduit d'aspiration (3) à dépression formant un embranchement du réacteur (2), un aimant permanent (4) entourant le point d'embranchement entre les deux tubes.
EP09782747A 2008-09-18 2009-09-08 Procédé et dispositif de séparation de particules ferromagnétiques d'une suspension Withdrawn EP2323772A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008047842A DE102008047842A1 (de) 2008-09-18 2008-09-18 Vorrichtung und Verfahren zum Abscheiden ferromagnetischer Partikel aus einer Suspension
PCT/EP2009/061612 WO2010031714A1 (fr) 2008-09-18 2009-09-08 Procédé et dispositif de séparation de particules ferromagnétiques d'une suspension

Publications (1)

Publication Number Publication Date
EP2323772A1 true EP2323772A1 (fr) 2011-05-25

Family

ID=41381598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09782747A Withdrawn EP2323772A1 (fr) 2008-09-18 2009-09-08 Procédé et dispositif de séparation de particules ferromagnétiques d'une suspension

Country Status (9)

Country Link
US (1) US20110163039A1 (fr)
EP (1) EP2323772A1 (fr)
CN (1) CN102215974A (fr)
AU (1) AU2009294674A1 (fr)
CA (1) CA2737521A1 (fr)
CL (1) CL2011000447A1 (fr)
DE (1) DE102008047842A1 (fr)
PE (1) PE20110820A1 (fr)
WO (1) WO2010031714A1 (fr)

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
DE102009038666A1 (de) 2009-08-24 2011-03-10 Siemens Aktiengesellschaft Verfahren zur kontinuierlichen magnetischen Erztrennung und/oder -aufbereitung sowie zugehörige Anlage
DE102010023131A1 (de) 2010-06-09 2011-12-15 Basf Se Anordnung und Verfahren zum Trennen magnetisierbarer Partikel von einer Flüssigkeit
PL2537590T3 (pl) * 2011-06-21 2015-10-30 Siemens Ag Sposób pozyskiwania niemagnetycznych rud z zawiesinowego strumienia masowego zawierającego niemagnetyczne cząstki rudy
PL2537591T3 (pl) * 2011-06-21 2014-11-28 Siemens Ag Sposób odzyskiwania niemagnetycznych rud z zawiesiny zawierającej aglomeraty cząsteczek rud - cząsteczek magnetycznych
PL3126053T3 (pl) * 2014-03-31 2023-07-17 Basf Se Urządzenie oddzielające namagnesowany materiał
CN104190532B (zh) * 2014-09-12 2016-09-14 刘克俭 多用电磁离心连续选矿机
DE102017008035A1 (de) 2016-09-05 2018-03-08 Technische Universität Ilmenau Vorrichtung und Verfahren zur Separation von magnetisch anziehbaren Teilchen aus Fluiden
DE102017107089B4 (de) 2017-04-03 2019-08-22 Karlsruher Institut für Technologie Vorrichtung und Verfahren zur selektiven Fraktionierung von Feinstpartikeln
DE102018113358B4 (de) 2018-06-05 2022-12-29 Technische Universität Ilmenau Vorrichtung und Verfahren zur kontinuierlichen separaten Entnahme von magnetisch anziehbaren und magnetisch abstoßbaren Teilchen aus einem strömenden Fluid

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SE7612178L (sv) 1975-11-10 1977-05-11 Union Carbide Corp Sett och anordning for att separera magnetiska partiklar fran ett malmmaterial med anvendning av en supraledande magnet
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EA004133B1 (ru) 2000-07-26 2003-12-25 Олег Николаевич Дарашкевич Устройство для непрерывного магнитного разделения жидких смесей
US7045051B2 (en) * 2002-02-27 2006-05-16 Lynntech, Inc. Electrochemical method for producing ferrate(VI) compounds
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Also Published As

Publication number Publication date
CA2737521A1 (fr) 2010-03-25
DE102008047842A1 (de) 2010-04-22
PE20110820A1 (es) 2011-11-10
CL2011000447A1 (es) 2011-06-03
US20110163039A1 (en) 2011-07-07
AU2009294674A1 (en) 2010-03-25
CN102215974A (zh) 2011-10-12
WO2010031714A1 (fr) 2010-03-25

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