EP0815941B1 - Séparateur magnétique à gradient fort - Google Patents

Séparateur magnétique à gradient fort Download PDF

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Publication number
EP0815941B1
EP0815941B1 EP97111007A EP97111007A EP0815941B1 EP 0815941 B1 EP0815941 B1 EP 0815941B1 EP 97111007 A EP97111007 A EP 97111007A EP 97111007 A EP97111007 A EP 97111007A EP 0815941 B1 EP0815941 B1 EP 0815941B1
Authority
EP
European Patent Office
Prior art keywords
housing
segments
walls
intermediate space
gradient magnetic
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.)
Expired - Lifetime
Application number
EP97111007A
Other languages
German (de)
English (en)
Other versions
EP0815941A1 (fr
Inventor
Matthias Dr. Franzreb
Klaus-Peter Dr. Jüngst
Markus Franz
Wolfgang Dr. Höll
Siegfried Prof. Dr. Eberle
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.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Forschungszentrum Karlsruhe GmbH
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.)
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Publication date
Application filed by Forschungszentrum Karlsruhe GmbH filed Critical Forschungszentrum Karlsruhe GmbH
Publication of EP0815941A1 publication Critical patent/EP0815941A1/fr
Application granted granted Critical
Publication of EP0815941B1 publication Critical patent/EP0815941B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B03C1/025—High gradient magnetic separators
    • B03C1/029—High gradient magnetic separators with circulating matrix or matrix elements
    • B03C1/03—High gradient magnetic separators with circulating matrix or matrix elements rotating, e.g. of the carousel type

Definitions

  • the invention relates to a high gradient magnetic separator according to the preamble of the first claim.
  • Such a high gradient magnetic separator is from AU-24983 known.
  • This magnetic separator rotates Matrix frame between the two poles of a magnet.
  • the matrix frame is divided into segments. Details, in the way in which the division is made is missing.
  • the Poles of the magnet have such a width that the Corresponds to the width of two segments.
  • Above and below of the matrix frame are an inlet and an outlet for the to be cleaned or for the cleaned fluid.
  • Another high gradient magnetic separator is from US 3,920,543 known.
  • This device has a rotatable, ring-shaped matrix frame arranged horizontally and is divided radially into segments.
  • the segments are with packing, filled with steel wool or balls.
  • each segment passes several magnetic units in succession, which consist of two poles, between which the Matrix frame moves as it rotates. Between the poles a homogeneous magnetic field is generated.
  • the magnetic units can e.g. B. from permanent magnets or electrical Coils exist.
  • a fluid containing solids via an inflow line from above directed into the underlying segment, whereby due to the applied magnetic field para- or weakly ferromagnetic Solids are deposited on the packing. That of the Fluid freed from solids flows in via a drain line down from.
  • the packing is subsequently used in several outside of the magnetic field flushing devices regenerated again.
  • the inlet and Drain lines for the fluid one above the other.
  • the fluid is there only in the area of influence of the magnetic field for a short time, so that the separation effect is not optimal.
  • Another rotatable high gradient magnetic separator is in EP 0 429 700 A1.
  • This magnetic separator contains an annular container filled with steel wool, which is U-shaped in cross section and by a partition that is provided with openings at the bottom of the u-profile, in one outer and an inner area is shared.
  • the container is in a homogeneous magnetic field created by permanent magnets and magnetizable internals is generated. That too cleaning fluid first passes through the outer area of the container, then passes through the openings in the partition and flows into the inner area of the container, taking solid particles be held back. Then the cleaned leaves Fluid the device.
  • this has a high gradient magnetic separator the advantage that the way of Fluid within the magnetic field is longer, making it more effective Separation of solids is possible. Indeed it is not possible to have multiple magnetic units in the same To connect the device in series.
  • the main disadvantage is, however, that the device is not operated continuously can be, because the gap is constantly in the Area of the magnetic field between the poles of the magnetic Unit. Therefore the loaded steel wool has to be mechanically be diverted from the area.
  • the object of the invention is a continuously operating device to propose the type mentioned at the beginning, in which the Path of the fluid within the magnetic field is larger than at the known devices, so that a more effective solid separation is possible.
  • the device is intended to operate simultaneously a series connection of several magnetic devices enable.
  • An essential advantage of the high gradient magnetic separator according to the invention is that the fluid flow within the magnetic field not just once as in EP 0 429 mentioned above 700 A1, but can be redirected several times, so that overall a much longer path within the magnetic field and thus achieve a better solids separation leaves.
  • the fluid flow is not radial, but as in of the above-mentioned US 3,920,543 performed in a circular manner, so that as in this device, several magnetic devices can be connected in series.
  • the invention is a matrix frame with an annular Interior provided by radially arranged partitions is divided into several segments.
  • the number of segments and thus the partition walls determine the length of the path of the fluid in the space.
  • the magnetic unit has a width that corresponds to the width of at least two segments, so that the fluid-like path of the fluid through at least two of the segments within the magnetic field lies.
  • the segments are with a matrix with a large surface, for example with steel wool, wire mesh or profiled metal plates filled.
  • the material of the matrix is said to be the magnetic field bundle up.
  • the high gradient magnetic separator also contains a flushing device with which the loaded matrix regenerates can be.
  • the flushing device is outside the Magnetic field and consists of an inflow and an outflow, which in are related to each other in such a way that only one segment at a time is regenerated with the flushing device.
  • the matrix frame can represent a torus, the with means for attachment to an axis, such as with two or more spokes.
  • the first, third, fifth etc. partition In a lying position of the torus leave the first, third, fifth etc. partition a gap free to the top wall of the torus, while at each second, fourth, sixth etc. partition the gap between between the partition and the lower wall of the torus is.
  • the matrix frame delimits the interior only on two opposite sides.
  • the matrix frame is integrated into a housing, the Inside walls the two sides not delimited by the matrix frame complete the interior.
  • Fig. 1 is the embodiment of the high gradient magnetic separator shown in supervision, the housing 10 is cut along the fault line B.
  • the device has a single magnetic unit 1.
  • Im broken Part of the matrix frame 2 can be seen, which consists of a outer 12 and an inner 11 annular wall, which connected to each other by radially arranged partitions 4 are.
  • the matrix frame 2 is about the axis 3 in the housing 10 rotatable. When rotating, the segments 4 are successively through the space between the two poles 1a, 1b (see Fig. 2) form the magnetic unit 1 together, passed.
  • a flushing device 16 is embedded in the housing 10, which is used to regenerate the matrix material 17 (see Fig. 2) serves in segments 5.
  • the detergent supply line is under supervision 16a visible.
  • Fig. 2 shows a sectional view of the embodiment of the High gradient magnetic separator along the line A-A (Fig. 1).
  • the matrix frame 2 rotates between the two walls 9 of the housing 10. On the walls 9, the poles 1a, 1b of the magnetic Unit 1 attached.
  • There are several of the matrix frame 2 segments filled with the matrix 17 are represented by which are six in the area of influence of the magnetic field of the magnetic Unit 1 are located.
  • the solids-laden fluid is in through the inflow line 6 in the housing 10 and the matrix frame 2 initiated. It flows through successively the segments between the inflow line 6 and the drain line 7, the fluid alternating the gap 8a on the first 9a and on the second 9b wall of the housing 10 flows through.
  • the edges 13 of the partitions 4 (Fig. 1) are with a means of sealing, here sealing lips made of Teflon, so that in the space between the poles 1a, 1b the side of the respective partition opposite the gap 8a lies tightly against the inner wall 9a or 9b of the housing 10.
  • the sealing lips lie outside this space the partition walls on both inner walls 9a, 9b of the housing 10 and thereby close the relevant segments tightly. In the area of the space have the inner housing walls 9a, 9b indentations, which cause that between the sealing lips and one of the two inner housing walls 9a and 9b the gap 8a occurs.
  • the separation of the para- or weakly ferromagnetic solids from the fluid instead.
  • the matrix 17 is loaded with the solids while the fluid freed from the solids through the device the drain line 7 leaves.
  • the flushing device 16 the is arranged outside the magnetic field, the matrix 17th regenerated again, d. H. freed from the accumulated solids.
  • FIG. 3 shows an alternative to the embodiment in FIG. 2.
  • the inner walls of the housing have no depressions here on; rather, they are shaped like wavy lines, whereby the bulges corresponding to the recesses 15 Stand gap. This achieves the same effect as with the embodiment shown in FIG.
  • the remaining reference numbers have the same meaning as in FIGS. 1 and 2.
  • the first inner wall 9a is in the embodiment shown in Fig. 2.
  • the flushing device 16 is also shown.
  • Fig. 5 shows the second inner wall 9b in the embodiment according to Fig. 2.
  • 6 and 7 are two alternative embodiments shown for the derivation 7.
  • the derivatives are through one of the two poles, pole 1a.
  • This embodiment has the advantage that a higher one in the area of the leads Magnetic field prevails and thus the risk of accidental Detachment of the solids is significantly reduced. Similar Embodiments can also be in the area of the feed line 6 be used.
  • the embodiment of the high gradient magnetic separator shown in FIGS. 1 and 2 was with a matrix diameter of 500 mm.
  • the matrix was in 40 segments in one Dimensions of approx. 80 x 35 x 40 mm divided.
  • the speed of rotation the matrix was 1 revolution per 20 minutes.
  • the flux density used was approximately 0.57 Tesla, the volume flow was 1 l / min.
  • the phosphate concentration in the feed was 10 mg P / l.
  • the initial turbidity became about 50 turbidity units Formazin (FEF) determined.
  • FEF Formazin

Claims (5)

  1. Séparateur magnétique à gradient fort pour la séparation en continu de matières solides paramagnétiques ou faiblement ferromagnétiques contenues dans un fluide, comprenant :
    a) au moins une unité magnétique (1) ayant deux pôles (1a, 1b) distants l'un de l'autre et formant entre eux un volume intermédiaire dans lequel se crée un champ magnétique homogène,
    b) un châssis de matrice (2) qui peut être mis en rotation autour d'un axe (3) et entoure au moins partiellement un volume intérieur annulaire subdivisé en segments (5) par des cloisons (4), les segments (5) du volume annulaire passant successivement, par rotation, dans le volume intermédiaire,
    c) au moins une conduite d'alimentation (6) et une conduite d'évacuation (7) à l'aide desquelles on peut faire passer le fluide à travers au moins un segment (5) se trouvant dans le volume intermédiaire du volume intérieur annulaire,
    d) la largeur de l'unité magnétique (1) le long du volume intermédiaire correspondant au moins à la largeur de deux segments (5),
    caractérisé en ce que
    dans la zone du volume intermédiaire, chaque segment (5) du volume intérieur annulaire est relié à ses segments voisins (5) par chaque fois une ouverture (8),
    les ouvertures (8) étant prévues alternativement en un premier et un second emplacement, le second emplacement n'étant pas opposé au premier emplacement pour que le chemin du fluide corresponde à un tracé ondulé.
  2. Séparateur magnétique à gradient fort selon la revendication 1,
    caractérisé en ce que
    les segments (5) sont formés dans la zone du volume intérieur par des cloisons (4) qui constituent un intervalle (8) alternativement avec la paroi (9) adjacente au premier et au second volumes intérieurs.
  3. Séparateur magnétique à gradient fort selon la revendication 1 ou 2,
    caractérisé en ce que
    le châssis de matrice (2) est monté dans un boítier (10) et comporte une surface de paroi en forme d'enveloppe cylindrique intérieure (11) et extérieure (12), ces surfaces étant reliées par des cloisons (4),
    la première et la seconde cloisons (9) étant formées par une première (9a) et une seconde (9b) parois intérieures du boítier (10),
    les cloisons (4) ayant des arêtes (13) dans leurs zones tournées vers les parois intérieures du boítier (10), ces arêtes étant munies de moyens pour réaliser l'étanchéité (14) par rapport aux parois intérieures (9a, 9b), et
    les parois intérieures (9a, 9b) du boítier (10) étant formées pour que les moyens réalisant l'étanchéité (14) au niveau du volume intermédiaire, touchent en alternance la première (9a) et la seconde (9b) parois intérieures du boítier (10) et forment l'intervalle (8a) en alternance avec la seconde (9b) et la première (9a) parois intérieures du boítier (10).
  4. Séparateur magnétique à gradient fort selon la revendication 3,
    caractérisé par
    des cavités (15) réalisées de manière radiale dans les parois intérieures (9a, 9b) du boítier (10).
  5. Séparateur magnétique à gradient fort selon l'une quelconque des revendications 3 ou 4,
    caractérisé en ce que
    le boítier comporte un dispositif de rinçage (16), formé d'une conduite d'alimentation et d'une conduite d'évacuation, situées en dehors du champ magnétique et opposées l'une à l'autre dans la première et la seconde paroi intérieure du boítier.
EP97111007A 1996-07-05 1997-07-02 Séparateur magnétique à gradient fort Expired - Lifetime EP0815941B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19626999 1996-07-05
DE19626999A DE19626999C1 (de) 1996-07-05 1996-07-05 Hochgradienten-Magnetabscheider

Publications (2)

Publication Number Publication Date
EP0815941A1 EP0815941A1 (fr) 1998-01-07
EP0815941B1 true EP0815941B1 (fr) 2000-12-06

Family

ID=7798943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111007A Expired - Lifetime EP0815941B1 (fr) 1996-07-05 1997-07-02 Séparateur magnétique à gradient fort

Country Status (3)

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EP (1) EP0815941B1 (fr)
AT (1) ATE197913T1 (fr)
DE (2) DE19626999C1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117659C2 (de) * 2001-04-09 2003-07-17 Steinert Gmbh Elektromagnetbau Hochgradienten-Magnetfilter und Verfahren zum Abtrennen von schwach magnetisierbaren Partikeln aus flüssigen Medien
EP2366455B1 (fr) * 2004-02-17 2015-03-25 E.I. Du Pont De Nemours And Company Champ magnétique et séparations solide-liquide à centrifugation améliorée de gradient de champ
DE102004034541B3 (de) * 2004-07-16 2006-02-02 Forschungszentrum Karlsruhe Gmbh Hochgradienten-Magnetabscheider
CN100503048C (zh) * 2005-12-30 2009-06-24 赣州金环磁选设备有限公司 干式振动高梯度磁选机
DE102008035695A1 (de) 2008-07-30 2010-02-04 Martin Lipsdorf Verfahren und Vorrichtung zur Bearbeitung von Partikeln gemäß ihrer magnetischen Suszeptibilität
CN101884952B (zh) * 2009-05-13 2011-12-28 中国地质科学院郑州矿产综合利用研究所 一种湿式永磁立环可调高梯度强磁选机
CN101912817B (zh) * 2010-08-16 2012-02-29 河南理工大学 旋转盘式高梯度永磁磁选机
CN101947492B (zh) * 2010-10-22 2012-02-29 河南理工大学 一种盘式结构永磁高梯度综合力场分选机
CN103480488A (zh) * 2013-07-24 2014-01-01 江苏旌凯中科超导高技术有限公司 一种干法转盘式超导磁分离系统及其应用工艺
US11000780B1 (en) 2019-12-06 2021-05-11 AnuCell Biosystems Limited Torus reactor for a combined cell isolator and bioreactor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920543A (en) * 1973-03-05 1975-11-18 Magnetic Eng Ass Inc Moving matrix magnetic separator
AU2498377A (en) * 1977-05-06 1978-11-09 Brander J E Magnetic separator
DE3513801A1 (de) * 1985-04-17 1986-10-30 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur matrixmagnetscheidung
EP0429700B1 (fr) * 1989-11-28 1995-04-05 Giovanni Asti Dispositif pour la purification continue des liquides, en particulier de l'eau, par la filtration magnétique à haut gradient

Also Published As

Publication number Publication date
EP0815941A1 (fr) 1998-01-07
DE59702706D1 (de) 2001-01-11
DE19626999C1 (de) 1997-08-21
ATE197913T1 (de) 2000-12-15

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