WO2019155742A1 - 棒状磁石及び磁性異物除去装置 - Google Patents

棒状磁石及び磁性異物除去装置 Download PDF

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Publication number
WO2019155742A1
WO2019155742A1 PCT/JP2018/044314 JP2018044314W WO2019155742A1 WO 2019155742 A1 WO2019155742 A1 WO 2019155742A1 JP 2018044314 W JP2018044314 W JP 2018044314W WO 2019155742 A1 WO2019155742 A1 WO 2019155742A1
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WO
WIPO (PCT)
Prior art keywords
rod
shaped magnet
magnetic foreign
magnet
foreign matter
Prior art date
Application number
PCT/JP2018/044314
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English (en)
French (fr)
Japanese (ja)
Inventor
雅人 佐藤
Original Assignee
株式会社Ｊｍｃ
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 株式会社Ｊｍｃ filed Critical 株式会社Ｊｍｃ
Priority to KR1020207022480A priority Critical patent/KR102401105B1/ko
Priority to CN201880088699.8A priority patent/CN111699045B/zh
Publication of WO2019155742A1 publication Critical patent/WO2019155742A1/ja

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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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]

Definitions

  • contamination of foreign substances must be strictly excluded from powders and other food materials such as wheat flour.
  • a device having a casing into which the granular material is charged and a magnet having a circular cross section disposed inside the casing is known.
  • a granular material is thrown in from the upper opening of a casing, since the magnetic foreign material M will be adsorb
  • Patent Document 1 describes a pair-shaped bar magnet having a tear-shaped cross section.
  • the bar magnet 100 has a mountain shape in which the cross-sectional shape of the upper portion is tapered at the upper end and gradually expands toward the lower end, and the cross-sectional shape of the lower portion is hemispherical. ing.
  • the bar magnet 100 is disposed in a casing 110 that is open at the top. And since the granular material G thrown in from the upper opening of the casing 110 becomes easy to slide down by the taper surface of the upper part which made the mountain shape, the granular material G does not accumulate easily in an upper part.
  • the granular material or fluid when the granular material or fluid is advanced toward one end of the rod-shaped magnet in order to remove the magnetic foreign matter from the granular material or fluid, the granular material is moved by the guide portion of the rod-shaped magnet.
  • fluid can be prevented from staying at one end of the rod-shaped magnet and can be smoothly guided toward the suction portion, and the pair of suction surfaces of the suction portion can be extended by a predetermined length so as to be parallel to each other. Therefore, the attracting surface where the strong magnetic field is generated is not linear like the boundary portion P of the conventional cross-section tear bar magnet (see FIG. 8B), but extends in a direction perpendicular to the axial direction of the bar magnet.
  • the rod-shaped magnet of the present invention it is preferable that the rod-shaped magnet has a shape adapted to the outer periphery of the rod-shaped magnet, and has a cover made of a non-magnetic material, and the rod-shaped magnet can be inserted into and removed from the cover. .
  • the rod-shaped magnet has a shape that fits the outer periphery of the rod-shaped magnet, and has a cover made of a non-magnetic material.
  • the rod-shaped magnet can be inserted into and removed from the cover.
  • the magnetic foreign matter can be attracted to the cover surface by the magnetic force of the bar magnet.
  • the magnetic force disappears by pulling out the bar magnet from the cover, so that the magnetic foreign matter can be detached from the cover surface and separated. That is, the magnetic foreign matter is attracted through the cover, and the magnetic foreign matter is not directly attracted to the rod-shaped magnet. Therefore, the cleaning of the rod-shaped magnet becomes unnecessary, and the workability of removing the magnetic foreign matter can be improved.
  • the rod-shaped magnet of the present invention is formed by connecting a plurality of magnets in the axial direction, and the joint surfaces of the magnets constituting the rod-shaped magnet are the same poles. preferable.
  • the rod-shaped magnet is formed by connecting a plurality of magnets in the axial direction, and the joint surfaces of the magnets constituting the rod-shaped magnet are the same poles, so that the magnetic field acts strongly.
  • the range to be increased can be increased in the axial direction of the bar-shaped magnet.
  • the joint surfaces of the magnets constituting the rod-shaped magnet are inclined parallel to each other at a predetermined angle with respect to the axial direction of the rod-shaped magnet.
  • the joining surfaces of the magnets constituting the rod-shaped magnet are inclined at a predetermined angle with respect to the axial direction of the rod-shaped magnet and are parallel to each other, and thus are orthogonal to the axial direction of the rod-shaped magnet.
  • the magnetic field In the direction, there will be a place where the magnetic field is strong, and even if the magnetic foreign matter passes through the place where the magnetic field is weak, it can be attracted by the place where the magnetic field is strong, and the magnetic foreign matter can be prevented more effectively. can do.
  • Another aspect of the present invention is a magnetic foreign matter removing device that removes the magnetic foreign matter by a magnetic field from a granular material or fluid containing the magnetic foreign matter, and an inlet for introducing the granular material or fluid, and ,
  • a casing having a discharge port for discharging the granular material or fluid, and a plurality of rod-shaped magnets disposed in the casing and extending in a rod shape with a predetermined length, the rod-shaped magnet being orthogonal to the axial direction thereof
  • a suction portion provided with a pair of suction surfaces extending in a predetermined length so as to be parallel to each other when viewed in a cross section, and provided on one end side of the suction portion, and guides the magnetic foreign matter to the suction portion
  • a plurality of the bar-shaped magnets are arranged in parallel in the casing with a predetermined gap in parallel and with the one end side directed in the traveling direction of the granular material or fluid. It is characterized by being arranged.
  • the rod-shaped magnet has the guide portion for guiding the magnetic foreign matter to the attracting portion on one end side of the attracting portion when viewed in a cross section orthogonal to the axial direction, and has a predetermined gap. Since it is arranged in parallel in the casing in a state where one end side is directed in the traveling direction of the granular material or fluid, the granular material or fluid introduced from the introduction port, It is made difficult to stay on one end side of the bar-shaped magnet, and can be smoothly guided toward the attracting portion of each bar-shaped magnet.
  • the attracting part of the bar-shaped magnet has a pair of attracting surfaces extending in a predetermined length so as to be parallel to each other, the attracting surface where the strong magnetic field is generated is connected to the boundary of the conventional cross-section tear bar-shaped bar magnet. Since it can be made into a planar shape extending in a direction perpendicular to the axial direction of the rod-shaped magnet, as in the part P, it is possible to secure a large area of a region where a strong magnetic field is generated, and to adsorb adjacent magnets Magnetic foreign substances contained in the powder or fluid that enter the gaps between the surfaces can be firmly adsorbed, and can be efficiently removed with less leakage of magnetic foreign substances.
  • a plurality of covers made of a non-magnetic material and fitted on the outer circumference of the bar magnet are arranged in the casing so as to be aligned with the arrangement of the bar magnets.
  • the rod-shaped magnet can be inserted into and removed from the corresponding cover.
  • the plurality of covers that are made of a non-magnetic material and are fitted on the outer periphery of the bar magnet are arranged so as to be aligned with the arrangement of the bar magnets, and the bar magnets are inserted into and removed from the corresponding covers. If it is placed in the casing with the rod-shaped magnet inserted in the cover and the magnetic foreign matter is removed from the powder or fluid, the magnetic force of the rod-shaped magnet will cause the magnet to magnetize the cover surface. Foreign matter can be adsorbed. Further, after the magnetic foreign matter is attracted, the magnetic force disappears by pulling out the bar magnet from the cover, so that the magnetic foreign matter can be detached from the cover surface and separated. That is, the magnetic foreign matter is attracted through the cover, and the magnetic foreign matter is not directly attracted to the rod-shaped magnet. Therefore, the cleaning of the rod-shaped magnet becomes unnecessary, and the workability of removing the magnetic foreign matter can be improved.
  • the bar magnet is formed by connecting a plurality of magnets in the axial direction, and the joint surfaces of the magnets constituting the bar magnet are the same poles. It is preferable.
  • the rod-shaped magnet is formed by connecting a plurality of magnets in the axial direction, and the joint surfaces of the magnets constituting the rod-shaped magnet are the same poles, so that the magnetic field acts strongly.
  • the range to be increased can be increased in the axial direction of the bar-shaped magnet.
  • the joint surfaces of the magnets constituting the bar magnet are inclined at a predetermined angle with respect to the axial direction of the bar magnet and are parallel to each other.
  • the joining surfaces of the magnets constituting the rod-shaped magnet are inclined at a predetermined angle with respect to the axial direction of the rod-shaped magnet and are parallel to each other, and thus are orthogonal to the axial direction of the rod-shaped magnet.
  • the magnetic field In the direction, there will be a place where the magnetic field is strong, and even if the magnetic foreign matter passes through the place where the magnetic field is weak, it can be adsorbed by the strong magnetic field, preventing the magnetic foreign matter from leaking more effectively. can do.
  • the rod-shaped magnet is radially connected to the rotation shaft with the one end side directed in the rotation direction, and is rotatable on the inner periphery of the casing. It is preferable.
  • the rod-shaped magnet is connected to the rotating shaft and can be rotated on the inner periphery of the casing, for example, even when the powder particles are aggregated, Since it is stirred and dispersed by the rotation of the bar-shaped magnet, it is possible to increase the adsorption efficiency of the magnetic foreign matter by each bar-shaped magnet.
  • the granular material or fluid when the granular material or fluid is advanced toward one end of the rod-shaped magnet in order to remove magnetic foreign substances from the granular material or fluid, the granular material is moved by the guide portion of the rod-shaped magnet.
  • fluid can be prevented from staying at one end of the rod-shaped magnet and can be smoothly guided toward the suction portion, and the pair of suction surfaces of the suction portion can be extended by a predetermined length so as to be parallel to each other.
  • FIG. 1 is a perspective view showing an embodiment of a bar-shaped magnet according to the present invention. It is a side view of the bar magnet. It is explanatory drawing of the 1st other shape in the state which looked at the same bar-shaped magnet from the axial direction side. It is explanatory drawing of the 2nd other shape in the state which looked at the same bar-shaped magnet from the axial direction side. It is explanatory drawing of the 3rd other shape in the state which looked at the same bar-shaped magnet from the axial direction side.
  • the rod-shaped magnet 10 in this embodiment has a structure in which a plurality of magnets 20 having a predetermined thickness are coupled via a coupling shaft 21 and formed as a rod as a whole. It has become.
  • each magnet 20 has a cross section perpendicular to its axial direction (thickness direction) substantially cut into a teardrop shape, and both side surfaces thereof are cut by suction surfaces 29 and 29 parallel to each other. It has a shape like this.
  • each magnet 20 has a major axis A and a minor axis B perpendicular to the major axis A, and one end 23 of the major axis A has a slightly rounded shape.
  • Each magnet 20 has a suction portion 30 provided with a pair of suction surfaces 29 and 29 extending in a predetermined length so as to be parallel to each other when viewed in a cross section orthogonal to the axial direction thereof, and the suction portion 30.
  • the guide portion 28 is provided on one end side in the long axis A direction and guides the magnetic foreign matter M to the suction portion 30.
  • the guide portion 28 has a pair of inclined surfaces 27, 27 that gradually become wider from the one end 23 side of the magnet 20 toward the other end 25 side of the long axis A.
  • the pair of parallel suction surfaces 29 and 29 constituting the suction portion 30 are flat surfaces in this embodiment.
  • the pair of suction surfaces 29 and 29 do not necessarily have a flat surface shape, and the surface thereof has minute unevenness, or partially has a recess, a protrusion, or a tapered surface.
  • the shape may be such that the pair of suction surfaces 29 and 29 extend in parallel as a whole.
  • the magnets 20 and 20 arranged adjacent to each other along the axial direction of the rod-shaped magnet 10 have their facing joint surfaces 33 and 33 arranged on the same pole (N pole and N pole, S Are joined via a plate-like yoke 39 made of pure iron, low carbon steel or the like.
  • the plate-like yokes 39 are arranged in parallel to each other at an angle with respect to the axis of the bar-shaped magnet 10 (the center of the connecting shaft 21). That is, the joint surfaces 33 and 33 of the magnets 20 constituting the rod-shaped magnet 10 are inclined at a predetermined angle with respect to the axial direction of the rod-shaped magnet 10 and are parallel to each other.
  • a rod-shaped magnet 10A shown in FIG. 4A has orthogonal surfaces 31a orthogonal to the attracting surfaces 29, 29 at the ends of the pair of attracting surfaces 29, 29 constituting the attracting portion 30. 31 a forms the other end 25. That is, the rod-shaped magnet 10A has a shape in which the base end portion 32 does not exist like the rod-shaped magnet 10 of the embodiment. However, the boundary portion (corner portion) between the suction surface 29 and the orthogonal surface 31a is preferably rounded.
  • the bar-shaped magnet 10 ⁇ / b> B shown in FIG. 4B has tapered surfaces 37 and 37 that gradually become narrower from the end portions of the pair of attracting surfaces 29 and 29 constituting the attracting portion 30 toward the other end 25.
  • the crossing end is the other end 25. That is, the base end portion 32 has tapered surfaces 37 and 37 on the outer peripheral surface thereof.
  • 4C basically has the same structure as the rod-shaped magnet 10 shown in FIG. 1, but the length L2 of the pair of attracting surfaces 29, 29 constituting the attracting portion 30 is the same. The shape is shorter than the length L2 of the attracting surface 29 of the rod-shaped magnet 10.
  • the rod-shaped magnet in the present invention is not particularly limited as long as it has a structure having a suction part having a pair of suction surfaces and a guide part. Further, the number of magnets 20 constituting the rod-shaped magnet 10 is not particularly limited. Furthermore, the rod-shaped magnet may be composed of a single long magnet that extends at a predetermined length, instead of being configured by connecting a plurality of magnets.
  • the cover 40 made of a nonmagnetic material such as austenitic stainless steel, aluminum alloy, or synthetic resin is covered on the outer periphery of the bar magnet 10.
  • the cover 40 has an outer peripheral shape that matches the magnet 20 constituting the rod-shaped magnet 10 and is longer than the entire axial length of the rod-shaped magnet 10. That is, the cover 40 of this embodiment includes a pair of slopes 47, 47 formed at an inclination angle corresponding to the pair of slopes 27, 27 of the magnet 20, and end portions near the other end of the pair of slopes 47, 47. And a pair of suction surfaces 49, 49 extending in parallel with each other. And the rod-shaped magnet 10 which consists of the some magnet 20 in this cover 40 is insertable / removable.
  • one side wall of the casing 51 is a slide wall portion 57 that can be opened and closed while approaching and separating from the other side wall.
  • a holding means (not shown) for holding and fixing the slide wall 57 in a closed state with respect to the casing 51 is provided between the casing 51 and the slide wall 57.
  • a plurality of the above-described rod-shaped magnets 10 are attached to the slide wall portion 57 with one end 23 side facing upward toward the introduction port 53 side. That is, the granular material or the like introduced from the introduction port 53 of the casing 51 falls toward the lower side of the casing 51, but the rod-like magnet 10 in this embodiment has one end 23 side in the traveling direction of the granular material or the like. A plurality of them are arranged in parallel in the casing 51 in a state in which they proceed (from the upper side of the casing toward the lower side).
  • the four bar-shaped magnets 10 are evenly distributed along the width direction of the casing 51 (direction perpendicular to the height direction) above and below the height direction of the casing 51. They are arranged in parallel at intervals. Further, in the middle of the casing 51 in the height direction, the three bar magnets 10 extend along the width direction of the casing 51 so as to form a staggered shape with respect to the four bar magnets 10 arranged above or below. Are arranged in parallel. That is, the bar-shaped magnet 10 disposed in the middle in the height direction is positioned between the bar-shaped magnets 10 and 10 disposed above or below.
  • the adsorbing surfaces 29 and 29 of the bar magnets 10 and 10 arranged adjacent to each other at the same height position with respect to the casing 51 have the same poles. (N poles and N poles, S poles and S poles) are arranged at a predetermined interval. As a result, magnetic fields that repel each other act between the attracting surfaces 29 and 29 of the bar magnets 10 and 10 (see FIG. 7).
  • a support plate 59 for supporting a plurality of the above-described covers 40 is arranged in the casing 51.
  • the support plate 59 is detachably attached to the center of the casing via a fixture (not shown).
  • the support plate 59 is formed with a plurality of cover fixing holes (not shown), and the cover 40 is inserted and fixed in each cover fixing hole.
  • the arrangement of the plurality of covers 40 is four above and below in the height direction of the support plate 59 corresponding to the plurality of bar magnets 10 attached to the slide wall portion 57 described above.
  • the covers 40 are fixed, and the three covers 40 are arranged and fixed in a staggered manner in the middle of the support plate 59 in the height direction.
  • a plurality of guide plates 65 having a mountain-shaped cross section are arranged above the casing.
  • the guide plate 65 guides the powder and the like introduced from the introduction port 53 so that the guide plate 65 can be easily guided to each bar magnet 10.
  • the granular material G is introduced from the inlet 53 above the casing, the granular material G is disposed above the casing via a plurality of guide plates 65 as shown in FIGS. 5B and 8A.
  • the rod-shaped magnet 10 is dropped to one end 23 side or passes between the rod-shaped magnets 10 and 10 disposed above the casing, and the rod-shaped magnet 10 disposed at the middle in the height direction of the casing 51 is disposed on the one end 23 side. Fall into. Then, the granular material G is guided to the attracting surfaces 49 and 49 side of the cover 40 through the inclined surfaces 47 and 47 of the cover 40 of each bar-shaped magnet 10.
  • the powder G is applied to the front side of the inclined surfaces 47, 47 of the cover 40 and the front side of the attracting surfaces 49, 49, as shown in FIG. 5B and FIG.
  • Magnetic foreign matter M such as contained metal pieces is adsorbed. That is, the magnetic foreign matter M is formed on the front surface of the pair of inclined surfaces 27 and 27 constituting the guide portion 28 and the front surface of the pair of attracting surfaces 29 and 29 constituting the attracting portion 30 of the bar magnet 10. And indirectly adsorbed via the adsorption surface 49 (see FIG. 8A).
  • the magnetic foreign matter M is directly attracted to the inclined surface 27 of the rod-shaped magnet 10 and the front side of the attracting surface 29.
  • the magnetic foreign matter M is attracted to the front side such as the attracting surface on the cover 40 side, but in the following description, it will be explained as adsorbing to the attracting surface on the bar-shaped magnet 10 side for convenience.
  • the particle G is advanced toward the one end 23 side of the rod-shaped magnet 10 in order to remove the magnetic foreign matter M from the particle G.
  • the guide part 28 of the bar-shaped magnet 10 makes it difficult for the powder G to stay on the one end 23 side of the bar-shaped magnet 10, and can smoothly guide it toward the suction part 30. Since the pair of attracting surfaces 29, 29 extend in a predetermined length so as to be parallel to each other, the attracting surface on which a strong magnetic field is generated is lined like a boundary portion P of a conventional cross-sectional tear bar magnet. (See FIG.
  • the rod-shaped magnet 10 has a magnetic foreign substance M applied to the suction portion 30 on one end side of the suction portion 30 when viewed in a cross section orthogonal to the axial direction.
  • a plurality of guide portions 28 are arranged in parallel in the casing 51 with a predetermined gap in parallel and with one end 23 facing the traveling direction of the granular material G. Therefore, the granular material G introduced from the inlet 53 can be smoothly guided toward the attracting portion 30 of each bar-shaped magnet 10 by making it difficult to stay on the one end 23 side of the bar-shaped magnet 10.
  • each bar magnet 10 has a pair of attracting surfaces 29 and 29 extending in a predetermined length so as to be parallel to each other. Since it is not linear like the boundary portion P of the bar magnet of the mold, but can be a planar shape extending in a direction perpendicular to the axial direction of the bar magnet 10, a large area of the region where the strong magnetic field is generated is ensured. It is possible to firmly adsorb the magnetic foreign matter M contained in the granular material G entering the gap between the attracting surfaces 29 and 29 of the adjacent bar-shaped magnets 10 and 10, and to prevent the magnetic foreign matter M from being leaked. The magnetic foreign matter M can be efficiently removed from the granular material G with less.
  • the rod-shaped magnet 10 disposed above the casing and the granular material G that has passed through the rod-shaped magnet 10 disposed in the middle of the casing further drop to the one end 23 side of the rod-shaped magnet 10 disposed below the casing.
  • the rod-like magnet 10 is guided toward the attracting surface 29 by the inclined surface 27 (see FIG. 5B). Therefore, the magnetic foreign matter M that could not be removed even by the rod-shaped magnet 10 disposed above or in the middle of the casing can be removed by adsorption by the rod-shaped magnet 10 below the casing.
  • positioned in parallel along the width direction of the casing 51 is arranged in multiple steps in the height direction of the casing 51, Adsorption leakage can be prevented more reliably.
  • the rod-shaped magnet 10 is formed by connecting a plurality of magnets 20 in the axial direction, and the joining surface 33 of each magnet 20 constituting the rod-shaped magnet 10 is The same poles are joined together via a plate-like yoke 39. Therefore, as shown in FIG. 3, the magnetic foreign matter M can be increased in the attracting portion 30 so that the range where the magnetic force acts strongly (the range passing through the yoke 39 where the magnetic force concentrates) can be increased in the axial direction of the bar magnet 10. It is possible to effectively prevent the magnetic foreign matter M from being leaked by being prevented from passing through without being attracted.
  • each joint surface 33 of each magnet 20 constituting the rod-shaped magnet 10 is disposed parallel to each other at an angle with respect to the axial direction of the rod-shaped magnet 10. Therefore, there is a portion where the magnetic field is strong in a direction orthogonal to the axial direction of the rod-shaped magnet 10 (when the magnet 20 is laminated in the axial direction of the rod-shaped magnet 10, the density of the magnetic force is arranged by the yoke 39. And the magnetic foreign material M can be adsorbed by a strong magnetic field even if it passes through a weak magnetic field, Adsorption leakage of the magnetic foreign matter M can be prevented more effectively.
  • FIG. 9 and 10 show a second embodiment of the magnetic foreign matter removing apparatus according to the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • a magnetic foreign matter removing apparatus 50A (hereinafter, also referred to as “removing apparatus 50A”) of this embodiment has a rotating shaft 67 that can be rotated in a predetermined direction by a driving means (not shown) at the center of the casing 51. Yes.
  • a plurality of rod-shaped magnets 10 are arranged on the outer periphery of the rotating shaft 67 along the axial direction (here, the rod-shaped magnets 10 are arranged in four stages in the axial direction of the rotating shaft 67).
  • the rod-shaped magnet 10 is radially connected to the rotating shaft 67 with one end 23 side thereof facing the rotating direction of the rotating shaft 67 (that is, toward the traveling direction of the powder or fluid). .
  • each rod-shaped magnet 10 is radially arranged on the outer periphery of the rotating shaft 67 with an equal interval in the circumferential direction.
  • Each bar-shaped magnet 10 can be rotated on the inner periphery of the casing 51 via the rotation shaft 67.
  • each rod-shaped magnet 10 is comprised from the some magnet 20 similarly to the said embodiment.
  • the rod-shaped magnet 10 is connected with the rotating shaft 67, and can be rotated in the inner periphery of the casing 51, for example, when a granular material aggregates Even so, since the bar-shaped magnets 10 are agitated and dispersed by the rotation of the bar-shaped magnets 10, it is possible to increase the adsorption efficiency of the magnetic foreign matter by the bar-shaped magnets 10.
  • FIG. 11 shows a third embodiment of the magnetic foreign matter removing apparatus according to the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • the magnetic foreign matter removing device 50 ⁇ / b> B (hereinafter, also referred to as “removing device 50 ⁇ / b> B”) of this embodiment has an inlet 53 ⁇ / b> A that introduces a granular material or fluid into a predetermined location in the circumferential direction of the casing 51.
  • a discharge port 55A is provided at a portion of the casing 51 facing the introduction port 53A in the circumferential direction to discharge the fluid after the magnetic foreign matter M such as a metal piece is adsorbed and removed.
  • a plurality of rod-shaped magnets 10 are arranged in a zigzag shape with one end 23 side thereof directed toward the introduction port 53A (see FIG. 11).
  • the removal device 50B of this embodiment is suitable for removing magnetic foreign substances contained in the fluid. That is, when the fluid F is introduced from the introduction port 53A, the magnetic foreign matter M is attracted and removed by the attracting surface 29 of each rod-shaped magnet 10, and is discharged from the discharge port 55A. can do. In addition, you may use this removal apparatus 50B for removing the magnetic foreign material in a granular material.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cleaning In General (AREA)
  • General Preparation And Processing Of Foods (AREA)
PCT/JP2018/044314 2018-02-07 2018-11-30 棒状磁石及び磁性異物除去装置 WO2019155742A1 (ja)

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KR1020207022480A KR102401105B1 (ko) 2018-02-07 2018-11-30 봉상 자석 및 자성 이물 제거 장치
CN201880088699.8A CN111699045B (zh) 2018-02-07 2018-11-30 棒状磁铁及磁性异物去除装置

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JP2018-020490 2018-02-07
JP2018020490A JP6446631B1 (ja) 2018-02-07 2018-02-07 棒状磁石及び磁性異物除去装置

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CN111570086A (zh) * 2020-05-20 2020-08-25 周雨威 一种磁铁分优装置
CN116020656A (zh) * 2022-12-30 2023-04-28 辽宁润兴新材料有限公司 一种包覆沥青材料加工用除杂装置
CN117147392A (zh) * 2023-07-19 2023-12-01 中核四0四有限公司 一种雾化流体气液比值的确定装置及方法

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TWI747435B (zh) * 2020-08-12 2021-11-21 泰翰實業有限公司 刮除式鐵磁性雜質分離裝置
CN113843040B (zh) * 2021-12-01 2022-03-01 潍坊百特磁电科技有限公司 一种针对弱磁性矿物的综合选矿设备及方法

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