EP0006877B1 - Magnetic separation comprising two rotating magnetic drums with polarity reversal - Google Patents

Magnetic separation comprising two rotating magnetic drums with polarity reversal Download PDF

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Publication number
EP0006877B1
EP0006877B1 EP78900057A EP78900057A EP0006877B1 EP 0006877 B1 EP0006877 B1 EP 0006877B1 EP 78900057 A EP78900057 A EP 78900057A EP 78900057 A EP78900057 A EP 78900057A EP 0006877 B1 EP0006877 B1 EP 0006877B1
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EP
European Patent Office
Prior art keywords
magnetic
drums
poles
soft iron
axes
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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
Application number
EP78900057A
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German (de)
French (fr)
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EP0006877A1 (en
Inventor
Heinrich Dr.-Ing. Spodig
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Individual
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Individual
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Publication of EP0006877A1 publication Critical patent/EP0006877A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/26—Magnetic separation acting directly on the substance being separated with free falling material

Definitions

  • the present invention relates to a magnetic separator with two rotating oppositely polarized magnetic drums, which form a working air gap between them, with directionally magnetized block magnets with oppositely arranged magnetic poles arranged on two adjacent end faces of the magnetic drums in a closed magnetic circuit.
  • a magnetic separator has become known with two revolving, oppositely polarized magnetic drums, which form a working air gap between them, whereby directional magnetized block magnets with opposing magnetic poles are arranged on two adjacent magnetic drums, on one side of their poles by soft iron pieces are connected to one another, the drums each being arranged in a housing, which have sliding plates tapering the inlet and widening the outlet in the working air gap and have circumferentially distributed grooves in the radial direction and grooves in the axial direction.
  • a magnetic roller table is known from BE-A-851 305, in which four permanent block magnets are arranged in a closed magnetic circuit, which are connected to one another in pairs on the underside of unequal polarity by soft iron connecting pieces and have pole shoes on the top of their poles, in which are designed as axes for the conveyor rollers of the roller table soft iron parts.
  • the object of the invention is to achieve a better efficiency by keeping the stray fields as small as possible and avoiding scattering outside the effective range as far as possible.
  • the soft iron parts are arranged in the interior of the drums as axes and are designed in the form of a segment in cross section.
  • the magnetic separator consists of two iron magnetic drums 1 and 2 and a magnet system with block magnets 3, 4 and 5, 6 arranged on two adjacent end faces of the magnetic drums 1, 2, with oppositely arranged magnetic poles on one side of their poles are connected to each other by soft iron pieces 7 and 8 and have pole shoes 9, 10 and 11, 12 on the other side of the poles.
  • the soft iron parts which are designed as axes 13 and 14 for the rotating magnetic drums 1 and 2 and which are mounted in ball diameters 15, extend.
  • the magnetic flux of the block magnets 3, 4 and 5, 6 is in an absolutely closed circuit, the magnetic field or the working air gap 16 is in the gap between the magnetic drums 1 and 2.
  • the magnetic drums 1 and 2 are arranged in a housing 17 and 18, respectively.
  • the housings 17 and 18 have 16 sliding plates 19 and 20 in the working air gap, which together form a tapering inlet and an expanding outlet on both sides of their partial encirclement of the drums 1 and 2.
  • the magnetic drums 1 and 2 have on their circumference radially distributed and axially extending grooves 21 filled with non-magnetic material, or according to FIG. 3 a circumferential star-shaped circumference.
  • edges 22 formed in this way cause an increased magnetic radiation, as a result of which the separating effect in the working air gap 16 formed by the sliding plates 19 and 20, which the separator happens well vertically from top to bottom, is significantly improved.
  • the axes 13 and 14 are segment-shaped over the length of the magnetic drums 1 and 2.

Abstract

Magnetic separator for eliminating thin and particularly low-magnetized particles, which comprises two magnetic drums, with polarity reversal, rotating and forming together a working slit (16), and having two magnets (3, 4; 5, 6) which are mounted on each front side of the magnetic drums and form a closed magnetic circuit, both magnets being connected by pair on one side of their poles by soft iron strips (7, 8) with different magnetic poles and possessing terminals on the other side (9, 10; 11, 12), into which soft iron particles are inserted to form axes (13, 14), each of the drums (1, 2) being located into a housing presenting in the working slit (16) sliding passages to reduce the opening and to enlarge the outlet, said passages being radially distributed on their periphery and having an axial groove (21) or a star-shaped cross-section. In this manner, a closed system is obtained, considerably less straying than what is known and which greatly eliminates the external straying and which generates a stronger magnetic field in the working slit.

Description

Die vorliegende Erfindung betrifft einen Magnetscheider mit zwei umlaufenden gegensätzlich polarisierten Magnettrommeln, die zwischen sich einen Arbeitsluftspalt bilden mit an jeweils zwei nebeneinanderliegenden Stirnseiten der Magnettrommeln in einem geschlossenen Magnetkreis angeordneten richtungsmagnetisierten Blockmagneten mit entgegengerichtet angeordneten Magnetpolen, die. auf einer Seite ihrer Pole durch Weicheisenstücke miteinander verbunden sind und auf der anderen Seite Polschuhe aufweisen, in denen als Achsen ausgebildete Weicheisenteile gelagert sind, wobei die Trommeln jeweils in einem Gehäuse angeordnet sind, die im Arbeitsluftspalt den Einlauf verjüngende und den Auslauf erweiternde Rutschbleche aufweisen und auf ihrem Umfang radial verteilte und in axialer Richtung verlaufende Nuten oder einen im Querschnitt sternförmigen Umfang haben.The present invention relates to a magnetic separator with two rotating oppositely polarized magnetic drums, which form a working air gap between them, with directionally magnetized block magnets with oppositely arranged magnetic poles arranged on two adjacent end faces of the magnetic drums in a closed magnetic circuit. are connected to one another by soft iron pieces on one side of their poles and have pole shoes on the other side, in which soft iron parts designed as axles are mounted, the drums each being arranged in a housing which has sliding plates which taper the inlet and widen the outlet in the working air gap, and have radially distributed on their circumference and extending in the axial direction grooves or a star-shaped circumference in cross section.

Aus der US-A-2 177 809 ist ein Magnetscheider bekanntgeworden mit zwei umlaufenden, gegensätzlich polarisierten Magnettrommeln, die zwischen sich einen Arbeitsluftspalt bilden, wobei an jeweils zwei nebeneinanderliegenden Magnettrommeln richtungsmagnetisierte Blockmagnete mit entgegengerichteten Magnetpolen angeordnet sind, die auf einer Seite ihrer Pole durch Weicheisenstücke miteinander verbunden sind, wobei die Trommeln jeweils in einem Gehäuse angeordnet sind, die im Arbeitsluftspalt den Einlauf verjüngende und den Auslauf erweiternde Rutschbleche aufweisen und auf ihrem Umfang in radialer Richtung verteilte und in axialer Richtung verlaufende Nuten haben.From US-A-2 177 809 a magnetic separator has become known with two revolving, oppositely polarized magnetic drums, which form a working air gap between them, whereby directional magnetized block magnets with opposing magnetic poles are arranged on two adjacent magnetic drums, on one side of their poles by soft iron pieces are connected to one another, the drums each being arranged in a housing, which have sliding plates tapering the inlet and widening the outlet in the working air gap and have circumferentially distributed grooves in the radial direction and grooves in the axial direction.

Ferner ist aus der BE-A-851 305 ein magnetischer Rollgang bekannt, bei welchem vier Permanent-Blockmagnete in einem geschlossenen Magnetkreis angeordnet sind, die auf der Unterseite ungleicher Polarität paarweise durch Weicheisenverbindungsstücke miteinander verbunden sind und auf der Oberseite ihrer Pole Polschuhe aufweisen, in denen als Achsen für die Förderrollen des Rollgangs ausgebildete Weicheisenteile gelagert sind.Furthermore, a magnetic roller table is known from BE-A-851 305, in which four permanent block magnets are arranged in a closed magnetic circuit, which are connected to one another in pairs on the underside of unequal polarity by soft iron connecting pieces and have pole shoes on the top of their poles, in which are designed as axes for the conveyor rollers of the roller table soft iron parts.

Bei solchen Systemen treten im allgemeinen an den Arbeitsluftspalten der Magnetscheider große Streuverluste auf, mit der Folge, daß das Separiergut die Spalte zusetzt und Betriebsstörungen eintreten, wenn nicht regelmäßig gereinigt wird.In such systems, large scattering losses generally occur at the working air gaps of the magnetic separators, with the result that the material to be separated clogs the gaps and operational malfunctions occur if cleaning is not carried out regularly.

Aufgabe der Erfindung ist es, einen besseren Wirkungsgrad zu erreichen, indem die Streufelder möglichst klein gehalten und Streuungen außerhalb des wirksamen Bereichs tunlichst vermieden werden.The object of the invention is to achieve a better efficiency by keeping the stray fields as small as possible and avoiding scattering outside the effective range as far as possible.

Zur Lösung dieser Aufgabe wird für einen Magnetscheider der eingangs erwähnten Art erfindungsgemäß vorgeschlagen, daß die Weicheisenteile im Inneren der Trommeln als Achsen angeordnet und im Querschnitt segmentförmig ausgebildet sind.To solve this problem it is proposed according to the invention for a magnetic separator of the type mentioned at the outset that the soft iron parts are arranged in the interior of the drums as axes and are designed in the form of a segment in cross section.

Auf diese Weise kommt ein erheblich streuungsärmeres System zustande, welches unerwünschte Streuung weitgehend unterbindet und durch Erhöhung des Magnetflusses ein stärkeres Magnetfeld im Arbeitsluftspalt erzeugt.In this way, a system with considerably less scatter is created, which largely prevents unwanted scattering and generates a stronger magnetic field in the working air gap by increasing the magnetic flux.

Nachstehend wird der Gegenstand der Erfindung an Hand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert.The subject matter of the invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawing.

Es zeigen:

  • Fig. 1 eine schaubildliche Ansicht auf den Magnetscheider ohne Gehäuse, teilweise geschnitten,
  • Fig. 2 einen Schnitt durch den Magnetscheider mit Gehäuse nach der Linie 11-11 der Fig. 1,
  • Fig. 3 einen Schnitt durch den Magnetscheider mit Gehäuse nach der Linie 11-11 der Fig. 1, jedoch mit einer anderen Ausbildung der Trommeln und der Drehachse und
Show it:
  • 1 is a perspective view of the magnetic separator without housing, partially cut,
  • 2 shows a section through the magnetic separator with housing along the line 11-11 of FIG. 1,
  • Fig. 3 shows a section through the magnetic separator with housing along the line 11-11 of Fig. 1, but with a different design of the drums and the axis of rotation and

Gemäß Fig. 1 besteht der Magnetscheider aus zwei eisernen Magnettrommeln 1 und 2 und aus einem Magnetsystem mit an jeweils zwei nebeneinanderliegenden Stirnseiten der Magnettrommeln 1,2 angeordneten Blockmagneten 3, 4 und 5, 6, mit entgegengerichtet angeordneten Magnetpolen, die auf einer Seite ihrer Pole durch Weicheisenstücke 7 bzw. 8 miteinander verbunden sind und auf der anderen Seite der Pole Polschuhe 9, 10 und 11, 12 aufweisen. In die Polschuhe 9, 10 und 11, 12 erstrecken sich die als Achsen 13 und 14 für die umlaufenden Magnettrommeln 1 und 2 ausgebildeten Weicheisenteile die in Kugel- .iagern 15 gelagert sind. Ober die Weicheisenstücke 7 und 8 einerseits und die Polschuhe 9, 10 bzw. 11, 12 sowie die Achsen 13 und 14 andererseits befindet sich der magnetische Fluß der Blockmagnete 3, 4 und 5, 6 in einem absolut geschlossenen Kreis, wobei das magnetische Wirkfeld bzw. der Arbeitsluftspalt 16 sich im Spalt zwischen den Magnettrommeln 1 und 2 befindet.1, the magnetic separator consists of two iron magnetic drums 1 and 2 and a magnet system with block magnets 3, 4 and 5, 6 arranged on two adjacent end faces of the magnetic drums 1, 2, with oppositely arranged magnetic poles on one side of their poles are connected to each other by soft iron pieces 7 and 8 and have pole shoes 9, 10 and 11, 12 on the other side of the poles. In the pole pieces 9, 10 and 11, 12, the soft iron parts, which are designed as axes 13 and 14 for the rotating magnetic drums 1 and 2 and which are mounted in ball diameters 15, extend. About the soft iron pieces 7 and 8 on the one hand and the pole pieces 9, 10 and 11, 12 as well as the axes 13 and 14 on the other hand, the magnetic flux of the block magnets 3, 4 and 5, 6 is in an absolutely closed circuit, the magnetic field or the working air gap 16 is in the gap between the magnetic drums 1 and 2.

Die Magnettrommeln 1 und 2 sind jeweils in einem Gehäuse 17 bzw. 18 angeordnet. Die Gehäuse 17 und 18 weisen im Arbeitsluftspalt 16 Rutschbleche 19 und 20 auf, die zusammen einen sich verjüngenden Einlauf und einen sich erweiternden Auslauf beiderseits ihrer teilweisen Umfassung der Trommeln 1 und 2 bilden.The magnetic drums 1 and 2 are arranged in a housing 17 and 18, respectively. The housings 17 and 18 have 16 sliding plates 19 and 20 in the working air gap, which together form a tapering inlet and an expanding outlet on both sides of their partial encirclement of the drums 1 and 2.

Die Magnettrommeln 1 und 2 haben auf ihrem Umfang radial verteilte und in axialer Richtung verlaufende und mit unmagnetischem Material ausgefüllte Nuten 21, bzw. gemäß Fig. 3 einen im Querschnitt sternförmigen Umfang.The magnetic drums 1 and 2 have on their circumference radially distributed and axially extending grooves 21 filled with non-magnetic material, or according to FIG. 3 a circumferential star-shaped circumference.

Die auf diese Weise gebildeten Kanten 22 (Fig. 2) bewirken eine verstärkte magnetische Abstrahlung, wodurch die Separierwirkung in dem durch die Rutschbleche 19 und 20 gebildeten Arbeitsluftspalt 16, den das Separiergut senkrecht von oben nach unten passiert, bedeutend verbessert wird. Zur weiteren Erhöhung des Magnetflusses im Arbeitsluftspalt 16 sind die Achsen 13 und 14 über die Länge der Magnettrommeln 1 und 2 segmentförmig ausgebildet.The edges 22 formed in this way (FIG. 2) cause an increased magnetic radiation, as a result of which the separating effect in the working air gap 16 formed by the sliding plates 19 and 20, which the separator happens well vertically from top to bottom, is significantly improved. To further increase the magnetic flux in the working air gap 16, the axes 13 and 14 are segment-shaped over the length of the magnetic drums 1 and 2.

Claims (1)

  1. A magnetic separator having two rotating magnetic drums of opposite polarity which form between them a working gap with directionally magnetized block magnets (3, 4; 5, 6) of oppositely disposed magnet poles, and being disposed at two adjacent front sides of the magnetic drums (1, 2) in a closed magnetic circuit, which block magnets are connected together on one side of their poles by means of soft-iron parts (7, 8) and which are provided, on the other side, with pole shoes (9, 10; 11, 12) in which are mounted soft-iron parts designed as axes (13, 14), each of the drums (1, 2) being arranged in a housing (17, 18) comprising sliding plates (19, 20) which are located in the working air-gap (16) and which converge at the inlet and diverge at the outlet, and the said drums having axial grooves (21) distributed radially around their peripheries, or having peripheries of star-shaped cross section, characterized in that the soft-iron parts are arranged as axes (13, 14) in the interior of the drums (1, 2) and are of segmental cross section.
EP78900057A 1977-07-25 1978-07-05 Magnetic separation comprising two rotating magnetic drums with polarity reversal Expired EP0006877B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2733473A DE2733473C2 (en) 1977-07-25 1977-07-25 Use of an unshielded permanent magnetic double yoke system for separation purposes
DE2733473 1977-07-25

Publications (2)

Publication Number Publication Date
EP0006877A1 EP0006877A1 (en) 1980-01-23
EP0006877B1 true EP0006877B1 (en) 1981-07-15

Family

ID=6014774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78900057A Expired EP0006877B1 (en) 1977-07-25 1978-07-05 Magnetic separation comprising two rotating magnetic drums with polarity reversal

Country Status (18)

Country Link
US (1) US4296865A (en)
EP (1) EP0006877B1 (en)
JP (1) JPS5424364A (en)
AT (1) AT358497B (en)
BE (1) BE869080R (en)
CH (1) CH622720A5 (en)
DD (1) DD137195A5 (en)
DE (1) DE2733473C2 (en)
DK (1) DK365777A (en)
ES (1) ES471925A2 (en)
FI (1) FI772476A (en)
GB (1) GB2020999B (en)
IT (1) IT1109533B (en)
NL (1) NL7807790A (en)
NO (1) NO772901L (en)
PL (1) PL208623A1 (en)
SE (1) SE7709179L (en)
WO (1) WO1979000060A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384015A (en) * 2014-11-14 2015-03-04 张祥平 Twin-roll magnetic separator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403098A1 (en) * 1984-01-30 1985-08-08 Krupp Polysius Ag, 4720 Beckum Induction roller separator
JPS61163247A (en) * 1985-01-16 1986-07-23 Nippon Steel Corp High alloy stainless steel excelling in hot workability as well as corrosion resistance
JP2533481B2 (en) * 1985-07-19 1996-09-11 大同特殊鋼株式会社 Non-magnetic high strength stainless steel and method for producing the same
JPH01168846A (en) * 1987-12-24 1989-07-04 Kawasaki Steel Corp Austenitic stainless steel excellent in hot workability and corrosion resistance
US5080234A (en) * 1990-08-15 1992-01-14 Walker Magnetics Group, Inc. Eddy current separator
US5207330A (en) * 1991-11-01 1993-05-04 Miller Compressing Company Magnetic pulley
US5522513A (en) * 1994-03-30 1996-06-04 Howell; Billy R. Separator disc
JP5153223B2 (en) * 2007-06-21 2013-02-27 株式会社ブンリ Dirty liquid processing equipment
CN113560848B (en) * 2021-07-26 2023-06-02 王静静 Magnet separating mechanism of chessman and magnet pressing device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US449610A (en) * 1891-03-31 Richard r
US264620A (en) * 1882-09-19 Electro-magnetic ore-separator
US2177809A (en) * 1937-05-05 1939-10-31 Queneau Augustin Leon Jean Apparatus for magnetically separating materials
US2664200A (en) * 1950-09-09 1953-12-29 Augustin L J Queneau Apparatus for electromagnetic separation of wet ores
DE967761C (en) * 1951-07-19 1957-12-12 Spodig Heinrich Permanent magnetic separator
DE965301C (en) * 1951-07-19 1957-06-27 Spodig Heinrich Drum magnetic separator
DE943761C (en) * 1951-07-19 1956-06-01 Spodig Heinrich Drum magnetic separator
US2766888A (en) * 1954-10-20 1956-10-16 Augustin L J Queneau Method and apparatus for magnetic separation of ores
FR1160212A (en) * 1956-02-25 1958-07-09 Erzbergbau Salzgitter Ag Method and device for the magnetic preparation of fine-grained and powdery material, in particular ore
DE1012872B (en) * 1956-02-25 1957-08-01 Erzbergbau Salzgitter Ag Strong field magnetic separator with three-leg yoke
US2904178A (en) * 1956-03-13 1959-09-15 Research Corp Apparatus for collecting magnetic susceptible material
DE1162303B (en) * 1960-03-30 1964-02-06 Sala Maskinfabriks Aktiebolag Magnetic strong field separator
US3246753A (en) * 1964-01-15 1966-04-19 Sala Maskinfabriks Aktiebolag High-intensity magnetic separator
US3984766A (en) * 1974-10-15 1976-10-05 Bactomatic Inc. Digital apparatus for rapidly detecting the growth of and identifying micro-biological organisms
DE2607197C3 (en) * 1976-02-23 1979-09-20 Heinrich Dr.-Ing. 4714 Selm Spodig Unscreened permanent magnetic double yoke system
US4157755A (en) * 1976-09-13 1979-06-12 Labatt Breweries Of Canada Limited Top loading compartmented beverage carton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384015A (en) * 2014-11-14 2015-03-04 张祥平 Twin-roll magnetic separator

Also Published As

Publication number Publication date
JPS5424364A (en) 1979-02-23
IT1109533B (en) 1985-12-16
ES471925A2 (en) 1979-05-16
IT7825693A0 (en) 1978-07-14
SE7709179L (en) 1979-01-26
FI772476A (en) 1979-01-26
GB2020999B (en) 1982-04-15
ATA531478A (en) 1980-02-15
DK365777A (en) 1979-01-26
NL7807790A (en) 1979-01-29
EP0006877A1 (en) 1980-01-23
NO772901L (en) 1979-01-26
DE2733473A1 (en) 1979-02-08
GB2020999A (en) 1979-11-28
DE2733473C2 (en) 1986-04-17
DD137195A5 (en) 1979-08-22
WO1979000060A1 (en) 1979-02-22
BE869080R (en) 1978-11-16
PL208623A1 (en) 1979-05-21
US4296865A (en) 1981-10-27
CH622720A5 (en) 1981-04-30
AT358497B (en) 1980-09-10

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