CN108393193A - Permanent-magnet drum type magnetic separator - Google Patents

Permanent-magnet drum type magnetic separator Download PDF

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Publication number
CN108393193A
CN108393193A CN201810153710.6A CN201810153710A CN108393193A CN 108393193 A CN108393193 A CN 108393193A CN 201810153710 A CN201810153710 A CN 201810153710A CN 108393193 A CN108393193 A CN 108393193A
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China
Prior art keywords
permanent
magnetic
drum type
slot
cylinder
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Granted
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CN201810153710.6A
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Chinese (zh)
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CN108393193B (en
Inventor
郭素红
刘志国
于传兵
王传龙
宋磊
姜志学
姚心
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China ENFI Engineering Corp
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China ENFI Engineering Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/10Magnetic separation acting directly on the substance being separated with cylindrical material carriers
    • B03C1/14Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a kind of permanent-magnet drum type magnetic separator, which includes:Charging gear;It is fed chute;Permanent magnetic pulley, the magnetic pole and transmission device that permanent magnetic pulley includes rotatable cylinder, is fixed in the cylinder, transmission device can drive barrel body rotation, and the discharging route for being fed ore pulp in chute intersects with the upper portion side wall of cylinder, and the upstream end of magnetic pole extends to the horizontal middle of cylinder or more;Tailing slot;Concentrate slot.The magnetic separation that the permanent-magnet drum type magnetic separator is suitable for coarse grain diameter ore particle detaches, and to reduce the comminution energy consumption of mineral, and improves ore dressing metal recovery rate.

Description

Permanent-magnet drum type magnetic separator
Technical field
The present invention relates to industrial and mineral fields, specifically, the present invention relates to permanent-magnet drum type magnetic separators.
Background technology
In the ore dressing process of magnetic iron ore, the discarding coarse tailing (containing dry throwing and wet throwing) before being selected in and the organic knot of comminution operation It closes, is effective to reduce the conventional process that comminution energy consumption, to reduce subsequent job load, reduces cost, increases economic efficiency.However, Existing wet type throws tail operation and is all made of Wet-type permanent magnet drum type magnetic separator to complete, which is limited by self structure, is applicable in Ore grain size it is thinner, if granularity is excessively thick, tailing loss dramatically increase, some coarse grain magnetic minerals do not come into full contact with magnetic field also It just crashes into non-magnetic product and is lost as tailing.Currently, sorting mineral effect of the existing equipment to P80=3mm or so It is very undesirable.
Therefore, existing magnetic plant still has much room for improvement.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention One purpose is to propose permanent-magnet drum type magnetic separator.The magnetic separation that the permanent-magnet drum type magnetic separator is suitable for coarse grain diameter ore particle detaches, from And the comminution energy consumption of mineral is reduced, and improve ore dressing metal recovery rate.
In one aspect of the invention, the present invention proposes a kind of permanent-magnet drum type magnetic separator.According to an embodiment of the invention, The permanent-magnet drum type magnetic separator includes:
Charging gear;
It is fed chute, the feed chute is arranged below the charging gear, and defeated suitable for accepting the charging gear What is gone out waits for magnetic separation ore pulp;
Permanent magnetic pulley, the permanent magnetic pulley includes rotatable cylinder, the magnetic pole that is fixed in the cylinder and biography Dynamic device, the transmission device can drive the barrel body rotation, described to be fed the discharging route of ore pulp and the cylinder in chute Upper portion side wall intersection, the upstream end of the magnetic pole extends to the horizontal middle of the cylinder or more;
The length direction cloth along the permanent magnetic pulley in the lower section of the permanent magnetic pulley is arranged in tailing slot, the tailing slot It sets, the bottom of the tailing slot is exported with tailing;
Concentrate slot, the concentrate slot is arranged in the lower section of the permanent magnetic pulley and is arranged in parallel with the tailing slot, described The side upper edge of concentrate slot is connected with the side upper edge of the tailing slot, is provided with ore discharging apparatus above the concentrate slot, institute The bottom for stating concentrate slot is exported with concentrate.
Magnetic separation processing is carried out to ore pulp using the permanent-magnet drum type magnetic separator of the embodiment of the present invention, when ore pulp enters magnetic separator, It can be come into full contact with permanent magnetic pulley, and enter the magnetic fields range of permanent magnetic pulley immediately, make magnetic material therein, especially Coarse grain magnetism ore particle is attached to permanent magnetic pulley surface under magneticaction and is recovered as concentrate in time, effectively overcomes biography The disadvantage that the drum magnetic separator recovery size upper limit of uniting is low, recovery rate of concentrate is low.The permanent-magnet drum type magnetic separator is suitable for coarse grain as a result, The magnetic separation of diameter ore particle detaches, and to reduce the comminution energy consumption of mineral, and improves ore dressing metal recovery rate, economic benefit is apparent.
In addition, permanent-magnet drum type magnetic separator according to the above embodiment of the present invention can also have following additional technology special Sign:
In some embodiments of the invention, the magnetic pole covers about the 50% of the cylinder inboard wall area.
In some embodiments of the invention, the discharging route of ore pulp and the angle of horizontal direction are in the feed chute 30~60 degree.
In some embodiments of the invention, the discharging route of ore pulp and the angle of horizontal direction are in the feed chute 35~45 degree.
In some embodiments of the invention, the diameter position of the discharging route and the cylinder for being fed ore pulp in chute In same straight line.
In some embodiments of the invention, the upstream end of the magnetic pole is extended to intersects with the discharging route of the ore pulp The cylinder lateral wall at.
In some embodiments of the invention, the egress form of the feed chute is the flat mouth of arc.
In another aspect of the invention, the present invention proposes the permanent-magnet drum type magnetic separator of above-described embodiment in processing coarse grain The middle the largest particles grain size of purposes in diameter magnetic mineral, the coarse grain diameter magnetic mineral is 6mm.
Magnetic separation processing is carried out to ore pulp using the permanent-magnet drum type magnetic separator of the embodiment of the present invention, when ore pulp enters magnetic separator, It can be come into full contact with permanent magnetic pulley, and enter the magnetic fields range of permanent magnetic pulley immediately, make magnetic material therein, especially Coarse grain magnetism ore particle is attached to permanent magnetic pulley surface under magneticaction and is recovered as concentrate in time, effectively overcomes biography The disadvantage that the drum magnetic separator recovery size upper limit of uniting is low, recovery rate of concentrate is low.The permanent-magnet drum type magnetic separator is used to handle magnetic as a result, Property mineral, can be such that the ore particle grain size upper limit improves to 6mm, to reduce the comminution energy consumption of mineral, and improve ore dressing metal recovery rate, Economic benefit is apparent.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment Obviously and it is readily appreciated that, wherein:
Fig. 1 is the structural schematic diagram of permanent-magnet drum type magnetic separator according to an embodiment of the invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, the terms such as " connected ", " connection ", " fixation " should be done extensively Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral;Can be mechanical connection, it can also It is electrical connection;Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or The interaction relationship of two elements, unless otherwise restricted clearly.For the ordinary skill in the art, Ke Yigen Understand the concrete meaning of above-mentioned term in the present invention according to concrete condition.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In one aspect of the invention, the present invention proposes a kind of permanent-magnet drum type magnetic separator.According to an embodiment of the invention, With reference to figure 1, which includes:Charging gear 100, feed chute 200, permanent magnetic pulley 300,400 and of tailing slot Concentrate slot 500.
Permanent-magnet drum type magnetic separator according to the ... of the embodiment of the present invention is described in detail below with reference to Fig. 1:
According to an embodiment of the invention, charging gear 100 can be used for ore pulp made of ore particle obtained by temporary comminution operation. The permanent-magnet drum type magnetic separator of the present invention is suitable for carrying out magnetic separation to coarse grain diameter ore particle, thus, it is possible to allow mine obtained by comminution operation Grain has larger grain size, significantly reduces the energy consumption of comminution operation, reduces production cost.
According to an embodiment of the invention, feed chute 200 is arranged below charging gear 100, and suitable for accepting feed dress That sets 100 outputs waits for magnetic separation ore pulp, and feed chute 200 is suitable for supplying the ore pulp in charging gear 100 to carrying out in magnetic separator Magnetic separation is handled.
According to a particular embodiment of the invention, the outlet of feed chute 200 can be formed as the flat mouth of arc, the present invention's In some embodiments of embodiment, the outlet cambered design of chute 200 is fed as shown in Figure 1, feed trough outlet more connects as a result, The arc tube skin of nearly permanent magnetic pulley, can further be conducive to the surface that ore pulp is directed directly to permanent magnetic pulley, to avoid Coarse grain diameter ore particle in ore pulp falls into tailing slot and causes damages.
According to an embodiment of the invention, permanent magnetic pulley 300 includes rotatable cylinder 310, is fixed in cylinder 310 Magnetic pole 320 and transmission device 330, transmission device 330 can drive cylinder 310 rotate, be fed chute 200 in ore pulp discharging road Line intersects with the upper portion side wall of cylinder 310, and the upstream end of magnetic pole 320 extends to the horizontal middle of cylinder 310 or more.As a result, may be used To increase the contact area of ore pulp and permanent magnetic pulley, make the coarse grain diameter material in ore pulp before vertical drop with permanent magnetic pulley surface It comes into full contact with, and forms a degree of buffering under the reaction force of cylinder surface, the ore pulp flowed out from feed chute is straight Punching is connect to cylinder epidermis face and follows skin co-flow in the counterclockwise direction, in this process, nonmagnetic tailings, which are fallen directly into, to be set The tailing slot below permanent magnetic pulley is set, magnetic concentrate is turned to roller at magnetic pole and magnetic field disappearance, and essence is discharged into through ore discharging apparatus Recycling in mine slot, to complete the magnetic separation separation of material.
According to a particular embodiment of the invention, magnetic pole 320 can cover about the 50% of cylinder inboard wall area, such as 48~ 52%.Thus, it is possible to further increase magnetic field coverage area in magnetic separator, make ore pulp the moment contacted with cylinder epidermis face i.e. into Enter magnetic fields range, causes damages to avoid coarse grain diameter ore particle from falling into tailing slot.
According to a particular embodiment of the invention, feed chute 200 can at an angle to the horizontal direction, to make feed The discharging route of ore pulp and the angle of horizontal direction are 30~60 degree in chute 200.It is slipped thus, it is possible to further be conducive to feed Ore pulp is guided the loss that coarse grain diameter ore particle is avoided to permanent magnetic pulley surface by slot.
According to a particular embodiment of the invention, being fed the discharging route of ore pulp and the angle of horizontal direction in chute 200 is 35~45 degree.Ore pulp is guided to permanent magnetic pulley surface thus, it is possible to further be conducive to feed chute, avoids coarse grain diameter ore particle Loss.
According to an embodiment of the invention, it is fed the relative position relation of the discharging route and cylinder 310 of ore pulp in chute 200 It is not particularly restricted, as long as feed chute can be made to supply ore pulp to the magnetic field range of permanent magnetic pulley, according to this The specific embodiment of invention, same straight line can be located at the diameter of cylinder 310 by being fed the discharging route of ore pulp in chute 200. Thus, it is possible to further be conducive to the surface that ore pulp is directed directly to permanent magnetic pulley, realize that ore pulp is contacted with the seamless of cylinder face, It causes damages to avoid the coarse grain diameter ore particle in ore pulp from falling into tailing slot.
According to a particular embodiment of the invention, the upstream end of magnetic pole 320 extends to the cylinder intersected with the discharging route of ore pulp 310 side-walls of body.Thus, it is possible to make ore pulp enter magnetic fields range in the moment contacted with cylinder epidermis face, to make mine Magnetisable material in slurry can be attracted to permanent magnetic pulley cylinder epidermis face under magneticaction in time, and coarse grain diameter ore particle is avoided to fall Enter tailing slot and causes damages.
It should be noted that above-mentioned term " upstream end " refers to one end of the close feed chute of magnetic pole.
According to an embodiment of the invention, the length along permanent magnetic pulley 300 in the lower section of permanent magnetic pulley 300 is arranged in tailing slot 400 Direction arrangement is spent, there is tailing to export 401 for the bottom of tailing slot 400, and tailing slot 400 is suitable for receiving the non magnetic tail in ore pulp Mine.According to an embodiment of the invention, concentrate slot 500 is arranged in the lower section of permanent magnetic pulley 300 and is arranged in parallel with tailing slot 400, The side upper edge of concentrate slot 500 is connected with the side upper edge of tailing slot 400, and it is (attached that 500 top of concentrate slot is provided with ore discharging apparatus It is not shown in figure), there is concentrate to export 501 for the bottom of concentrate slot 500.With the progress of magnetic separation, nonmagnetic tailings are fallen directly into The tailing slot being arranged below permanent magnetic pulley, magnetic concentrate are turned at magnetic pole and magnetic field disappearance with roller, are discharged into through ore discharging apparatus Recycling in concentrate slot, to complete the magnetic separation separation of material.
Magnetic separation processing is carried out to ore pulp using the permanent-magnet drum type magnetic separator of the embodiment of the present invention, when ore pulp enters magnetic separator, It can be come into full contact with permanent magnetic pulley, and enter the magnetic fields range of permanent magnetic pulley immediately, make magnetic material therein, especially Coarse grain magnetism ore particle is attached to permanent magnetic pulley surface under magneticaction and is recovered as concentrate in time, effectively overcomes biography The disadvantage that the drum magnetic separator recovery size upper limit of uniting is low, recovery rate of concentrate is low.The permanent-magnet drum type magnetic separator is suitable for coarse grain as a result, The magnetic separation of diameter ore particle detaches, and to reduce the comminution energy consumption of mineral, and improves ore dressing metal recovery rate, economic benefit is apparent.
In another aspect of the invention, the present invention proposes the permanent-magnet drum type magnetic separator of above-described embodiment in processing coarse grain The middle the largest particles grain size of purposes in diameter magnetic mineral, the coarse grain diameter magnetic mineral is 6mm.
Magnetic separation processing is carried out to ore pulp using the permanent-magnet drum type magnetic separator of the embodiment of the present invention, when ore pulp enters magnetic separator, It can be come into full contact with permanent magnetic pulley, and enter the magnetic fields range of permanent magnetic pulley immediately, make magnetic material therein, especially Coarse grain magnetism ore particle is attached to permanent magnetic pulley surface under magneticaction and is recovered as concentrate in time, effectively overcomes biography The disadvantage that the drum magnetic separator recovery size upper limit of uniting is low, recovery rate of concentrate is low.The permanent-magnet drum type magnetic separator is used to handle magnetic as a result, Property mineral, but so that the ore particle grain size upper limit is improved to 6mm, to reduce the comminution energy consumption of mineral, and improve ore dressing metal recovery Rate, economic benefit are apparent.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are only to describe Property, without limiting the invention in any way.
Embodiment
Certain v-ti magnetite green ore Iron grade is 40.27%, and the permanent magnetism of traditional drum magnetic separator and the present invention is respectively adopted Drum magnetic separator carries out magnetic separation to the vanadium titano-magnetite, and the results are shown in Table 1.
Table 1
The result shows that permanent-magnet drum type magnetic separator using the present invention to granularity be P80=0~6.0mm vanadium titano-magnetites into Row magnetic separation, magnetic recovery rate of concentrate are significantly better than traditional drum magnetic separator.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (8)

1. a kind of permanent-magnet drum type magnetic separator, which is characterized in that including:
Charging gear;
It is fed chute, the feed chute is arranged below the charging gear, and suitable for accepting the charging gear output Wait for magnetic separation ore pulp;
Permanent magnetic pulley, the permanent magnetic pulley includes rotatable cylinder, the magnetic pole that is fixed in the cylinder and transmission dress It sets, the transmission device can drive the barrel body rotation, and the discharging route of ore pulp and the cylinder is upper in the feed chute Portion's side wall intersection, the upstream end of the magnetic pole extends to the horizontal middle of the cylinder or more;
Tailing slot, the tailing slot, which is arranged, to be arranged in the lower section of the permanent magnetic pulley along the length direction of the permanent magnetic pulley, institute The bottom for stating tailing slot is exported with tailing;
Concentrate slot, the concentrate slot are arranged in the lower section of the permanent magnetic pulley and are arranged in parallel with the tailing slot, the concentrate The side upper edge of slot is connected with the side upper edge of the tailing slot, and ore discharging apparatus, the essence are provided with above the concentrate slot The bottom of mine slot is exported with concentrate.
2. permanent-magnet drum type magnetic separator according to claim 1, which is characterized in that the magnetic pole covers the surface of cylinder's inboard wall Long-pending about 50%.
3. permanent-magnet drum type magnetic separator according to claim 1, which is characterized in that the discharging road of ore pulp in the feed chute Line and the angle of horizontal direction are 30~60 degree.
4. permanent-magnet drum type magnetic separator according to claim 3, which is characterized in that the discharging road of ore pulp in the feed chute Line and the angle of horizontal direction are 35~45 degree.
5. permanent-magnet drum type magnetic separator according to claim 3 or 4, which is characterized in that ore pulp goes out in the feed chute Material route and the diameter of the cylinder are located at same straight line.
6. permanent-magnet drum type magnetic separator according to claim 1, which is characterized in that the upstream end of the magnetic pole extends to and institute It states at the cylinder lateral wall of discharging route intersection of ore pulp.
7. permanent-magnet drum type magnetic separator according to claim 1, which is characterized in that the egress form of the feed chute is arc The flat mouth of shape.
8. purposes of claim 1~7 any one of them permanent-magnet drum type magnetic separator in handling coarse grain diameter magnetic mineral, described The middle the largest particles grain size of coarse grain diameter magnetic mineral is 6mm.
CN201810153710.6A 2018-02-22 2018-02-22 Permanent-magnet drum type magnetic separator Active CN108393193B (en)

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CN108393193B CN108393193B (en) 2024-07-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114100848A (en) * 2021-11-16 2022-03-01 李鑫虎 Metal mineral separation flotation machine

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CN201235310Y (en) * 2008-08-05 2009-05-13 中钢集团安徽天源科技股份有限公司 Large-diameter long-barrel coarse-grain permanent magnetic barrel type magnetic separator
CN202224242U (en) * 2011-04-08 2012-05-23 中钢集团马鞍山矿山研究院有限公司 Permanent magnet drum magnetic separator applicable to wet type coarse graining, primary separating and tail discarding
CN202290292U (en) * 2011-11-04 2012-07-04 抚顺凯宇机电设备有限公司 Permanent magnet concentration magnetic separator
CN103495500A (en) * 2013-09-23 2014-01-08 长沙矿冶研究院有限责任公司 Low-energy-consumption method for separating ilmenites from tailings in iron choosing plant
CN203990887U (en) * 2014-07-30 2014-12-10 青州市晨光机械有限公司 Magnetic separator in 220 ° of large disk pack angle wet types
US20160318036A1 (en) * 2014-01-25 2016-11-03 Shandong Huate Magnet Technology Co., Ltd. Magnetic separator for improving grade of refined ore and reducing slags
CN207786810U (en) * 2018-02-22 2018-08-31 中国恩菲工程技术有限公司 Permanent-magnet drum type magnetic separator

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Publication number Priority date Publication date Assignee Title
CN201235310Y (en) * 2008-08-05 2009-05-13 中钢集团安徽天源科技股份有限公司 Large-diameter long-barrel coarse-grain permanent magnetic barrel type magnetic separator
CN202224242U (en) * 2011-04-08 2012-05-23 中钢集团马鞍山矿山研究院有限公司 Permanent magnet drum magnetic separator applicable to wet type coarse graining, primary separating and tail discarding
CN202290292U (en) * 2011-11-04 2012-07-04 抚顺凯宇机电设备有限公司 Permanent magnet concentration magnetic separator
CN103495500A (en) * 2013-09-23 2014-01-08 长沙矿冶研究院有限责任公司 Low-energy-consumption method for separating ilmenites from tailings in iron choosing plant
US20160318036A1 (en) * 2014-01-25 2016-11-03 Shandong Huate Magnet Technology Co., Ltd. Magnetic separator for improving grade of refined ore and reducing slags
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CN207786810U (en) * 2018-02-22 2018-08-31 中国恩菲工程技术有限公司 Permanent-magnet drum type magnetic separator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114100848A (en) * 2021-11-16 2022-03-01 李鑫虎 Metal mineral separation flotation machine

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