CN105289842A - Large column type magnetic separator of internal magnetic system - Google Patents
Large column type magnetic separator of internal magnetic system Download PDFInfo
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- CN105289842A CN105289842A CN201510852620.2A CN201510852620A CN105289842A CN 105289842 A CN105289842 A CN 105289842A CN 201510852620 A CN201510852620 A CN 201510852620A CN 105289842 A CN105289842 A CN 105289842A
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Abstract
The invention discloses a large column type magnetic separator of an internal magnetic system, and aims at completely using magnetic field energy of a coil, initiatively damaging magnetic flocculation and improving the separation accuracy. The magnetic separator comprises an ore feeding bucket, an ore feeding pipe, a gangue overflowing groove, an excitation and demagnetization magnetic system, a separation cavity, a water feeding drum, an ore discharge cone, a concentrate discharge pipe, a tangential water feeding pipe, an electromagnetic control device and a dispersing disc; the ore feeding bucket is arranged on the gangue overflowing groove through a support at the lower portion of the ore feeding bucket; the gangue overflowing groove is concentrically fixed through a flange and located at the upper portion of the separation cavity, and the excitation and demagnetization magnetic system is fixed inside the separation cavity through a support; and the electromagnetic control device is connected with the excitation and demagnetization magnetic system through a cable. According to the large column type magnetic separator, through shearing effects of an alternating current magnetic field, a demagnetizing field and the rotating rising water flow, the high magnetic flocculation damaging effect is achieved; and compared with other magnetic plants, same materials are selected, and the concentrate grade is higher.
Description
Technical field
The present invention relates to magnetic-gravity separation device, particularly a kind of inner magnet is large-scale pillar magnetic separator.
Background technology
Existing magnetic plant has drum magnetic separator, magnetic force sloughing-off tank, Magnetic rotator for medical freatment, magnetic accumulating machine, column magnetic separator, electromagnetic sieve etc.These magnetic plants existing, in Magnetic control, sharpness of separation, capacity usage ratio and the magnetic fields degree of depth are several, have deficiency to a certain degree.
The permanent-magnet concentration equipment such as drum magnetic separator, magnetic force sloughing-off tank and magnetic accumulating machine, adopt retentive material excitation, produce permanent-magnetic field.Advantage is without electric energy excitation, thus energy-conservation, but magnetic field is steady state value, its size that has that it's too late can not be controlled, magnetic-particle is caused easily to form magnetic coagulation in sorting space, magnetic linkage, and these magnetic coagulations, magnetic linkage is difficult to the chance of again scattering, part non-magnetic particle is caused to sweep along in wherein, and then be mixed in magnetic product, the excitation magnetic patch field intensity of magnetic system is higher, magnetic coagulation phenomenon is more serious, result is that concentrate quality is lower, therefore the sharpness of separation of permanent magnet devices is lower, be difficult to meet modern technical requirement of smelting, so permanent-magnet concentration equipment can only be used for roughly selecting or scanning operation, it is fewer and feweri that selected operation then uses.
The electromagnetism such as column magnetic separator, electromagnetic sieve magnetic plant, adopts electric energy excitation.Advantage one is the problem overcoming the permanent magnetic field size that can not control that it's too late, two is take certain measure to destroy magnetic coagulation and then to improve concentrate quality, flow as concentrate is relative with mine tailing, intermittent power supply makes magnetic coagulation temporarily loose, strengthens current failure by shear magnetic coagulation etc.
Electromagnetism magnetic plant contrast permanent magnetic system magnetic separator has had larger progress, but it is few to destroy magnetic coagulation number of times, does not more initiatively break up the effect of magnetic coagulation, strong not enough to magnetic coagulation destructiveness.
Electromagnetic equipment magnetic system current in addition is all located at outside point constituency, and the magnetic field that magnetic system produces is distributed in magnetic system surrounding, magnetic field, side is only had to have sorting like this, obvious shortcoming is: the magnetic field that magnetic system produces only make use of side, divide favored area little, and the capacity usage ratio of magnetic system is low, namely leakage field to a certain degree is all had outside sorting space, even if equipment component is equipped with the armor reducing leakage field can not avoid leakage field completely, especially the place that the corner angle iso-curvature radius of armor is little, relative magnetic line is concentrated, and leakage field is serious; There is air-gap in electromagnetism magnetic system and sorting space, air reluctance is relatively large, can cause magnetic field rapid decay, and the magnetic energy effectively utilized is consumed further; The magnetic fields space of electromagnetism magnetic system is little, the magnetic fields degree of depth is not enough, especially with the ferromagnetic system of cored electromagnetism, the magnetic line of force concentrates on iron core both ends of the surface, cause iron core end face field intensity large, but along with the distance leaving end face strengthens magnetic field intensity meeting rapid decay, so the magnetic fields degree of depth is less, sorting limited space can be caused, if any electromagnetism magnetic plant occupy-place device need be adopted to clog the lower space of magnetic fields, waste equipment use space, magnetic system depth of interaction deficiency also seriously governs the magnetic plant maximization progress of electromagnetism excitation simultaneously.
Summary of the invention
The invention provides a kind of inner magnet is large-scale pillar magnetic separator, is intended to the magnetic field energy utilizing coil completely, initiatively destroys magnetic coagulation and improves sharpness of separation.
A kind of inner magnet is large-scale pillar magnetic separator, this magnetic separator comprises: mine feeding bucket, mineral-feeding pipe, mine tailing overflow launder, excitation and demagnetization magnetic system, sorting chamber, to drum, ore discharge cone, concentrate ore discharge pipe, tangential feed pipe, electromagnetic control apparatus and dispersion impeller, described mine feeding bucket is placed on above mine tailing overflow launder by propping up of its underpart, mine feeding bucket is below by Flange joint mineral-feeding pipe, mineral-feeding pipe axial centre aligns, be placed in the middle and upper part of sorting chamber, dispersion impeller fixed by mineral-feeding pipe bottom bolt; Described mine tailing overflow launder is fixed with one heart by flange, be positioned at the top of sorting chamber, tangential feed pipe to drum, is tangentially welded to drum is outside by Flange joint in the bottom of sorting chamber, to drum below by Flange joint ore discharge cone, concentrate ore discharge pipe is welded on the lower central position of ore discharge cone; Described excitation and demagnetization magnetic system, be fixed on sorting chamber inside by support, and excitation and demagnetization magnetic system vertical axes are assembled to central alignment; Described electromagnetic control apparatus connects excitation and demagnetization magnetic system by cable.
Described excitation and demagnetization magnetic system are made up of magnet exciting coil or electromagnet.
Electromagnetism magnetic system of the present invention is positioned at sorting space, and sorting space is made up of two parts region, magnetic system inner space and magnetic system outer space, and both sides are communicated with.Electromagnetism magnetic system by some groups independently electromagnetism magnetic system form, adopt independent cooperation control excitation mode, in magnetic system, several groups of direct-flow magnet exciting coils produce the batch (-type) magnetic field powered successively in proper order of mechanical periodicity downwards; Several groups of interchanges, degaussion coil, produce quick upset and demagnetized field that the higher and alternation of frequency weakens.Bottom, sorting space is provided with to drum, and feedwater tangentially enters sorting space, is formed and rotate ascending current in sorting space.Alternating magnetic field, demagnetizing field are combined the effect reaching and strongly destroy magnetic coagulation with tangential current.
The present invention compared with existing same device, its significantly beneficial effect be embodied in:
1. capacity usage ratio is high.It is inner that set magnetic system is placed in point constituency, and whole magnetic fields, in sorting space, does not exist leakage field, and magnetic energy is fully exploited.
2. sharpness of separation is high.Be applicable to the selected operation of magnetic material.The shear action of AC magnetic field, demagnetizing field and rotation ascending current has strong destruction magnetic coagulation effect, compares with other magnetic plant, and same material is selected in, and concentrate grade is higher.
3. energy-conservation.Without running gear, mechanical loss is little; An exciting current realization point favored area need not be strengthened and increase one times.
4. water-saving.Adopt AC magnetic field and demagnetizing field to act on sorting space, to magnetic coagulation, there is strong destruction, can reduce the dependence of rotary cutting to current, under the equal destructiveness of magnetic coagulation, can remarkable minimizing water.
5. be beneficial to maximization.Existing magnetic plant, because only utilizing the one-sided magnetic field of magnetic system, the magnetic fields degree of depth limits sorting space, and whole magnetic fields of magnetic system of the present invention are all sorting spaces, and sorting space size doubles, and utilizes and realizes maximizing.
Accompanying drawing explanation
The structural representation of Fig. 1 to be a kind of inner magnet be large-scale pillar magnetic separator.
Number in figure: mine feeding bucket 1, mineral-feeding pipe 2, mine tailing overflow launder 3, excitation and demagnetization magnetic system 4, sorting chamber 5, to drum 6, ore discharge cone 7, concentrate ore discharge pipe 8, tangential feed pipe 9, electromagnetic control apparatus 10, dispersion impeller 11.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of inner magnet is large-scale pillar magnetic separator, this magnetic separator by mine feeding bucket 1, mineral-feeding pipe 2, mine tailing overflow launder 3, excitation and demagnetization magnetic system 4, sorting chamber 5, to bore 7 to drum 6, ore discharge, concentrate ore discharge pipe 8, tangential feed pipe 9, electromagnetic control apparatus 10 and dispersion impeller 11 form, described mine feeding bucket 1 is placed on above mine tailing overflow launder 3 by propping up of its underpart, mine feeding bucket 1 is below by Flange joint mineral-feeding pipe 2, mineral-feeding pipe 2 axial centre aligns, be placed in the middle and upper part of sorting chamber 5, dispersion impeller 11 fixed by mineral-feeding pipe 2 bottom bolt; Described mine tailing overflow launder 3 is fixed with one heart by flange, be positioned at the top of sorting chamber 5, the bottom of sorting chamber 5 by Flange joint to drum 6, to the tangential feed pipe 9 of the outside tangential welding of drum 6, to drum 6 below by Flange joint ore discharge cone 7, concentrate ore discharge pipe 8 is welded on the lower central position of ore discharge cone 7; Described excitation and demagnetization magnetic system 4 are made up of magnet exciting coil or electromagnet, are fixed on sorting chamber 5 inner by support, and excitation and demagnetization magnetic system 4 vertical axes are assembled to central alignment; Described electromagnetic control apparatus 10 connects excitation and demagnetization magnetic system 4 by cable.
The course of work of the present invention is as follows:
The surrounding magnetic fields space of excitation and demagnetization magnetic system 4 is point favored area, i.e. a sorting chamber 5.Sorting material and medium enter mineral-feeding pipe 2 by mine feeding bucket 1, dispersion impeller 11 is arranged at mineral-feeding pipe 2 bottom, sorting material and medium enter sorting chamber middle and upper part thus, be scattered in sorting chamber middle and upper part, in excitation and demagnetization magnetic system 4 magnet exciting coil or electromagnet produce in proper order downwards, under the magnetic field of mechanical periodicity and Action of Gravity Field, magnetic-particle moves downward, and non-magnetic particle, under the rotation ascending current effect of feeding to drum 6 and tangential feed pipe 9, moves to top mine tailing overflow launder 3 gradually and discharges.Magnetic-particle is in decline process, magnetic coagulation, magnetic linkage can be produced in the effect of excitation magnetic system, wherein have monomer magnetic-particle, also have intergrowth particle, also have a certain amount of non-magnetic particle of sweeping along wherein, these magnetic coagulations, magnetic linkage can obtain the probability scattered in decline process.Mainly break up the demagnetization magnetic system being excitation and demagnetizing in magnetic system 4 of magnetic coagulation, magnetic linkage effect, and the shearing of tangential current is broken up in excitation magnetic system power process, make non-magnetic particle and lean intergrowth have an opportunity to depart from magnetic coagulation, magnetic linkage, regain the chance of being brought into mine tailing overflow launder 5 by ascending current.Demagnetization several times so repeatedly and excitation power-off will destroy magnetic coagulation, magnetic linkage strongly, reach the requirement improving sharpness of separation, thus obtain the object of high-grade concentrate.The control of magnetic system is realized by electromagnetic control apparatus 10, the excitation of wherein optional position and quantity and the coil in demagnetization magnetic system 4 or electromagnet can be controlled, interchange, DC excitation magnetic field and demagnetized field are set as required, and magnetic field intensity and effect number of times, can also the controlling magnetic field cycle of operation.Final magnetic-particle and rich intergrowth movement of particles discharge formation concentrate product to ore discharge cone 7 via concentrate ore discharge pipe 8.
The present invention can form numerous embodiments according to the effect difference of excitation and the different or diverse location coil of coil quantity in demagnetization magnetic system 4.
Claims (2)
1. an inner magnet is large-scale pillar magnetic separator, it is characterized in that this magnetic separator comprises: mine feeding bucket, mineral-feeding pipe, mine tailing overflow launder, excitation and demagnetization magnetic system, sorting chamber, to drum, ore discharge cone, concentrate ore discharge pipe, tangential feed pipe, electromagnetic control apparatus and dispersion impeller, described mine feeding bucket is placed on above mine tailing overflow launder by propping up of its underpart, mine feeding bucket is below by Flange joint mineral-feeding pipe, mineral-feeding pipe axial centre aligns, be placed in the middle and upper part of sorting chamber, dispersion impeller fixed by mineral-feeding pipe bottom bolt; Described mine tailing overflow launder is fixed with one heart by flange, be positioned at the top of sorting chamber, tangential feed pipe to drum, is tangentially welded to drum is outside by Flange joint in the bottom of sorting chamber, to drum below by Flange joint ore discharge cone, concentrate ore discharge pipe is welded on the lower central position of ore discharge cone; Described excitation and demagnetization magnetic system, be fixed on sorting chamber inside by support, and excitation and demagnetization magnetic system vertical axes are assembled to central alignment; Described electromagnetic control apparatus connects excitation and demagnetization magnetic system by cable.
2. a kind of inner magnet according to claim 1 is large-scale pillar magnetic separator, it is characterized in that described excitation and demagnetization magnetic system are made up of magnet exciting coil or electromagnet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510852620.2A CN105289842A (en) | 2015-11-26 | 2015-11-26 | Large column type magnetic separator of internal magnetic system |
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| CN201510852620.2A CN105289842A (en) | 2015-11-26 | 2015-11-26 | Large column type magnetic separator of internal magnetic system |
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| CN105289842A true CN105289842A (en) | 2016-02-03 |
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| CN201510852620.2A Pending CN105289842A (en) | 2015-11-26 | 2015-11-26 | Large column type magnetic separator of internal magnetic system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746117A (en) * | 2019-03-15 | 2019-05-14 | 山东华特磁电科技股份有限公司 | Low-frequency ac electromagnetism wash mill |
| CN111215240A (en) * | 2019-11-13 | 2020-06-02 | 鞍钢集团矿业有限公司 | Multilayer magnetic system selection magnetic separator |
| CN112808454A (en) * | 2021-01-27 | 2021-05-18 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with moving magnetic poles |
| CN112808455A (en) * | 2021-01-27 | 2021-05-18 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with movable shielding plate |
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| CN1428203A (en) * | 2002-12-05 | 2003-07-09 | 广州有色金属研究院 | Vertable pulse vibration magnetic field magnetic separator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109746117A (en) * | 2019-03-15 | 2019-05-14 | 山东华特磁电科技股份有限公司 | Low-frequency ac electromagnetism wash mill |
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| CN111215240A (en) * | 2019-11-13 | 2020-06-02 | 鞍钢集团矿业有限公司 | Multilayer magnetic system selection magnetic separator |
| CN112808454A (en) * | 2021-01-27 | 2021-05-18 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with moving magnetic poles |
| CN112808455A (en) * | 2021-01-27 | 2021-05-18 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with movable shielding plate |
| CN112808455B (en) * | 2021-01-27 | 2022-12-13 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with movable shielding plate |
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Inventor after: Zhao Tonglin Inventor after: Li Yang Inventor after: Wang Dong Inventor after: Fang He Inventor before: Zhao Tonglin Inventor before: Wang Dong Inventor before: Fang He |
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Application publication date: 20160203 |