CN201295637Y - High gradient magnetic separator - Google Patents
High gradient magnetic separator Download PDFInfo
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- CN201295637Y CN201295637Y CNU2008202031593U CN200820203159U CN201295637Y CN 201295637 Y CN201295637 Y CN 201295637Y CN U2008202031593 U CNU2008202031593 U CN U2008202031593U CN 200820203159 U CN200820203159 U CN 200820203159U CN 201295637 Y CN201295637 Y CN 201295637Y
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Abstract
A high gradient magnetic separator comprises a separating ring as well as a driving device, an ore feeding device, a refined ore unloading device and a refined ore collecting device of the separating ring, wherein the separating ring comprises a rotating ring, a magnetism gathering medium pack, a left magnet yoke, a left magnet, a right magnet yoke, a right magnet, a front magnet yoke, a back magnet yoke, and a magnetizing-demagnetizing device capable of magnetizing and demagnetizing the left magnet and the right magnet and comprising a magnetic coil and an excitation power supply. The utility model skillfully combines a permanent magnet with the excitation power supply so as to form a background magnetic field of the magnetic separator, and effective ore separation can be conducted by conveniently magnetizing the left magnet and the right magnet and then withdrawing the excitation power supply according to a requirement value of the background magnetic field during the work, and meanwhile, the problem of magnetic blockage is effectively solved by demagnetizing an upper magnet and a lower magnet during the assembly and the repair of the separator, therefore, not only the power consumption of the high gradient magnetic separator is greatly reduced, but also the convenient repair in the actual production can be fully ensured.
Description
Technical field
The utility model relates to a kind of ore dressing magnetic separator, particularly relates to a kind of high gradient magnetic separator.
Background technology
The proposition of high-gradient magnetic separation theory gives magnetic concentration circle with qualitative leap, and the mineral species that allows to magnetic separation increases, and the granularity upper and lower limit broadens.Early stage high gradient magnetic separator is a periodic, also claims magnetic filter, and this kind equipment is used widely in handling the occasion that magnetic material content is extremely low and granularity is very thin.The continuous high gradient magnetic separator of Chu Xianing has the strong magnetic high gradient magnetic separator of the flat ring type of electromagnetism, permanent magnetism and electromagnetism double-vertical ring high-gradient magnetic separator immediately.The electromagnetism horizontal disk high gradient magnetic separator is owing to give the ore deposit identical with the rinse water direction, so cause machinery to stop up easily, the permanent magnet vertical ring high gradient magnetic separator is owing to the as easy as rolling off a log formation strongly magnetic mineral at the feed port place, the particularly accumulation of iron filings and magnetic takes place stop up, the magnetic separation of electromagnetism vertical ring high-gradient is owing to give the ore deposit opposite with the flow direction of concentrate flushing water in media stack, so being not easy to take place machinery stops up, again owing to be electromagnetism, so when exciting curent does not exist, strongly magnetic mineral and iron filings are easy to come off at the feed port place, and magnetic is stopped up and is not easy to take place.For being mingled with of nonmagnetics in the product that deperms, vibration and pulsating high gradient magnetic separator have appearred, as Chinese patent 86106144.6 disclosed a kind of pulsating high gradient magnetic separators, it can make the richness that is recovered material long-pending than improving, simultaneously because the panting action of water has reduced mechanical obstruction.
Chinese patent 02134298.9 discloses a kind of double-frequency pulse and double-vertical ring high-gradient magnetic separator, its adopt by the sorting space of left and right magnetic pole and the rotating disk outer rim magnetic conduction part horizontal magnetic force line that forms with can make that the perpendicular double-frequency pulse device of ore pulp generation and magnetic line of force direction combines in this space, the fluid dynamic that can produce according to the ore pulp pulse section different in magnetic separator sorting space with the magnetic force that magnetic field produces is to the difference of the different mineral grain group active force of magnetic, it is efficiently separated, also adopt independent water flushing but its concentrate unloads the ore deposit device.
Chinese patent 02134298.9 discloses a kind of double-frequency pulse and double-vertical ring high-gradient magnetic separator, its adopt by the sorting space of left and right magnetic pole and the rotating disk outer rim magnetic conduction part horizontal magnetic force line that forms with can make that the perpendicular double-frequency pulse device of ore pulp generation and magnetic line of force direction combines in this space, the fluid dynamic that can produce according to the ore pulp pulse section different in magnetic separator sorting space with the magnetic force that magnetic field produces efficiently separated it to the difference of the different mineral grain group active force of magnetic.
In sum, not to provide, provide by electromagnetism exactly by permanent magnetic iron providing of all these vertical ring high-gradient magnetic separator background magnetic fields.Provide the high gradient magnetic separator of background magnetic field can't solve magnetic obstruction and the difficult problem of regulating of magnetic field intensity by permanent magnetism, though provide the high gradient magnetic separator of background magnetic field can overcome the magnetic blockage problem by electromagnetism, provide the electromagnetism of certain intensity background magnetic field need continuously consume a large amount of electric energy.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, provides a kind of and both can solve the magnetic blockage problem effectively and regulate magnetic field intensity easily, and is easy to maintenance in the assurance actual production, again the high gradient magnetic separator that can cut down the consumption of energy greatly.
The purpose of this utility model is achieved through the following technical solutions:
A kind of high gradient magnetic separator, comprise separation ring and drive unit thereof, mine-feeding equipment, concentrate unloads ore deposit device and concentrate gathering-device, wherein separation ring comprises change and is installed on magnetic matrix heap in the change, be positioned at a change left side, the left yoke on right side, left side magnet, right yoke, right magnet, preceding yoke, rear magnetic yoke, it is characterized in that also including be installed on change below can be respectively to left magnet, right magnet fills the magnetising or demagnetising apparatus that demagnetization is handled, and this magnetising or demagnetising apparatus comprises the close left magnet that is positioned at the change below and the solenoid and the excitation power supply that is connected with solenoid of right magnet.
The utility model forms the background magnetic field of magnetic separator owing to dexterously permanent magnet and excitation power supply are combined, that scientifically utilizes in the electromagnetism hard (by force) magnetic material (title magnet) fills the demagnetization principle, and promptly the magnetic induction intensity of hard magnetic material can be set and control by parameter within the specific limits by magnetizer.Can stop the power supply that magnetizes when magnetic field intensity reaches desirable value, only the remanent magnetism by hard magnetic material provides the required background magnetic induction intensity of magnetic separator to carry out ore dressing work.And need repairing when detecting when equipment, can control the parameter of filling the demagnetization power supply, make the remanence disappearance of hard magnetic material.Therefore, can be easily according to the desired value of background magnetic field left magnet and right magnet being magnetized in when work removes excitation power supply again after handling and comes mineral matter is carried out effective sorting, and when device assembles and maintenance can on magnet and lower magnet demagnetize and handle and effectively solve the magnetic blockage problem.The energy consumption of high gradient magnetic separator was reduced greatly, fully guaranteed in actual production easy to maintenance again.The coil that fills demagnetization simultaneously need not cool off because of the moment energising, can improve greatly its service life, and its maintenance cost is reduced greatly.
Describe basic composition of the present utility model and work operation principle in detail below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is a sectional structure schematic diagram of the present utility model;
Fig. 2 is a side sectional structure schematic diagram of the present utility model;
Fig. 3 is the hysteresis curve schematic diagram of ferromagnetic substance;
Fig. 4 is the normal magnetization curve schematic diagram of kicker magnet.
The specific embodiment
As Fig. 1～shown in Figure 2, a kind of high gradient magnetic separator described in the utility model comprises separation ring and drive unit thereof, mine-feeding equipment 7, the concentrate air water unloads ore deposit device and concentrate gathering-device 8, wherein separation ring comprises change 5 and is installed on magnetic matrix heap 2 in the change 5, be positioned at change 5 left sides, the left yoke 3 on right side, left side magnet 31, right yoke 4, right magnet 41, its characteristics be also to include be installed on change below can be respectively to left magnet 31, right magnet 41 fills the magnetising or demagnetising apparatus that demagnetization is handled, and this magnetising or demagnetising apparatus comprises the close left magnet 31 that is positioned at the change below and the solenoid 11 and the excitation power supply 12 that is connected with solenoid 11 of right magnet 41.Wherein change 5 is vertical twin nuclei, interannular is provided with the rotating disk that dicyclo is connected as one, the axle sleeve that bearing is housed is set in the rotating disk, above-mentioned ring body is divided into the identical space of some volumes by some dividing plates, the magnetic matrix heap then is fixed in the corresponding space, above-mentioned magnetic matrix heap 2 is excellent medium, and this rod medium is to be fixed on the stainless sheet steel according to certain rules by thousands of magnetic stainless steel poles.The rod medium detachably cleans, and medium is reusable.Magnetic matrix is formed by the good materials processing of magnetic property, and magnetic matrix can be assembled the magnetic line of force in magnetic field, therefore can form the very high magnetic field of gradient on its surface, and magnetic field force is to be directly proportional with magnetic field intensity and magnetic field gradient.The magnetic matrix surface can form very high magnetic field force in magnetic field, can reclaim the very weak mineral of magnetic, and the big more magnetic field gradient of the surface curvature of magnetic matrix is high more, and the effect that reclaims the fine weak magnetic mineral of granularity is good more.
The course of work of the present utility model and principle are as follows:
As everyone knows, in magnetic field, the magnetic induction intensity of ferromagnet (ferromagnetic substance) is represented with the available curve of relation of magnetization field intensity, when magnetizing field is done the variation in cycle, the magnetic induction intensity in the ferromagnet and the relation of magnetic field intensity are closed lines, and this closed line is called hysteresis curve.
Figure 3 shows that the curve of ferromagnetic substance hysteresis.In general, the intensity of magnetization of ferromagnetic substance such as ferromagnet or magnetic induction intensity M are not the monotropic functions of magnetization field intensity H and depend on the history of its magnetic state of experiencing.With magnetic neutral state (H=M=B=0) has been primary state, when magnetic state when initial magnetization curve 0ABC is magnetized near the C point (as Fig. 3), this moment, the intensity of magnetization was tending towards saturated, curve is almost parallel with the H axle.Magnetic field intensity is designated as Hs at this moment, and the intensity of magnetization is designated as Ms.After this if reduce magnetic field, then from a certain magnetic field (B point), M departs from original initial magnetization curve with the variation of H, and the variation of M lags behind H.When H was decreased to zero, M was not reduced to zero, and equals remanent magnetization Mr.For making M reduce to zero, need add an opposing magnetic field, be called coercivity.The opposing magnetic field continues to increase to-and during Hs, the M of kicker magnet will be along magnetic reversal to being tending towards saturated-Ms, and the opposing magnetic field reduces and more oppositely the time, obtains the curve that another departs from reverse initial magnetization curve by similar rule.So become-Hs from Hs when magnetic field, again from-when Hs changes to Hs, the magnetic state of kicker magnet will be described by closed loop CBDEFEGBC, wherein two sections of BC and EF are corresponding to reversible magnetization, M is the monotropic function of H.And BDEGB is a hysteresis curve.On this loop line, same H can have two M values, is decided by the history of magnetic state.This is by due to the irreversible process of magnetization.If less than Hs ± Hm between during remagnetization, then obtain less hysteresis curve as shown in Figure 4, be called minor loop or minor loop.Corresponding to different Hm, different little loop lines can be arranged.And above-mentioned BDEGB is wherein maximum.So be called limit hysteresis curve.H magnetizes reversible substantially during greater than the maximum magnetic field strength Hs of limit loop line; When H was worth less than this, M was the multivalued function of H.
After the magnetising or demagnetising apparatus of excitation power supply 12 and solenoid 11 compositions magnetizes for the magnetic loop that is made of magnetic matrix heap, left yoke, left magnet, right yoke, right magnet, preceding yoke, rear magnetic yoke and removes electric current, owing to left magnet 31 and right magnet 41 are to have remanent magnetism, the magnetic induction that this remanent magnetism produces certain intensity at the magnetic loop that is made of magnetic matrix heap 2, left yoke 3, left magnet 31, right yoke 4, right magnet 41, preceding yoke 100, rear magnetic yoke 101 by what hard magnetic material was processed into.Magnetic matrix heap 2 surfaces can form very high magnetic field force.Separation ring counterclockwise rotates, and its underpart all is full of the magnetic matrix heap by the arc sorting space that left magnet 31 and right magnet 41 form in each the sorting cell on the separation ring.
When ore pulp evenly and lentamente enters the sorting space by mine feeding bucket 7, because magnetic field force effect, the magnetic mineral particle is attracted on the magnetic matrix surface, on the magnetic matrix surface, continued to rotate by firm suction with separation ring, break away from magnetic field gradually, enter magnetic product and unload the mining area, because magnetic field is very weak in this zone, with the concentrate flushing water that filters through the flushing water filter and compressed air magnetic product is washed and enters concentrate bucket 8 from magnetic matrix surface upper punch, be magnetic product.Thereby the different particle swarm of magnetic is effectively separated.
Device assembles and when maintenance by the magnetising or demagnetising apparatus formed by excitation power supply 12 and solenoid 11 to the processing of demagnetizing of left magnet 31 and right magnet 41, make the remanence disappearance of left magnet 31 and right ferromagnetic 41, at this moment do not have magnetic induction in the magnetic loop that is made of magnetic matrix heap 2, left yoke 3, left magnet 31, right yoke 4, right magnet 41, preceding yoke 100, rear magnetic yoke 101, device assembles and regular maintenance are not only easily but also safety.
Claims (2)
1, a kind of high gradient magnetic separator, comprise separation ring and drive unit thereof, mine-feeding equipment (7), concentrate unloads ore deposit device (6) and concentrate gathering-device (8), wherein separation ring comprises change (5) and is installed on magnetic matrix heap (2) in the change (5), be positioned at change (a 5) left side, the left yoke (3) on right side, left side magnet (31), right yoke (4), right magnet (41), preceding yoke (100), rear magnetic yoke (101), it is characterized in that also including be installed on change below can be respectively to left magnet (31), right magnet (41) fills the magnetising or demagnetising apparatus that demagnetization is handled, and this magnetising or demagnetising apparatus comprises the close left magnet (31) that is positioned at the change below and the solenoid (11) and the excitation power supply that is connected with solenoid (12) of right magnet (41).
2, High-gradient Magnetic magnetic separator according to claim 1 is characterized in that above-mentioned left magnet is corresponding with right magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202031593U CN201295637Y (en) | 2008-11-11 | 2008-11-11 | High gradient magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202031593U CN201295637Y (en) | 2008-11-11 | 2008-11-11 | High gradient magnetic separator |
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| Publication Number | Publication Date |
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| CN201295637Y true CN201295637Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202031593U Expired - Lifetime CN201295637Y (en) | 2008-11-11 | 2008-11-11 | High gradient magnetic separator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611718A (en) * | 2013-11-18 | 2014-03-05 | 陈应强 | Construction waste pre-grinding and sorting device |
| CN104707723A (en) * | 2015-02-16 | 2015-06-17 | 柳州市远健磁力设备制造有限责任公司 | Permanent-magnet high-gradient flat-ring continuous magnetic separator |
| CN104923392A (en) * | 2015-06-18 | 2015-09-23 | 广州粤有研矿物资源科技有限公司 | Reversed type horizontal magnetic field vertical ring high-gradient magnetic separator |
| CN108284005A (en) * | 2018-01-13 | 2018-07-17 | 常州大学 | A kind of magnetic force cyclone separator of magnetic drive continuous pulp discharge |
| CN112185647A (en) * | 2019-07-04 | 2021-01-05 | 华中科技大学 | Device and method for generating periodic background magnetic field |
-
2008
- 2008-11-11 CN CNU2008202031593U patent/CN201295637Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611718A (en) * | 2013-11-18 | 2014-03-05 | 陈应强 | Construction waste pre-grinding and sorting device |
| CN104707723A (en) * | 2015-02-16 | 2015-06-17 | 柳州市远健磁力设备制造有限责任公司 | Permanent-magnet high-gradient flat-ring continuous magnetic separator |
| CN104923392A (en) * | 2015-06-18 | 2015-09-23 | 广州粤有研矿物资源科技有限公司 | Reversed type horizontal magnetic field vertical ring high-gradient magnetic separator |
| CN108284005A (en) * | 2018-01-13 | 2018-07-17 | 常州大学 | A kind of magnetic force cyclone separator of magnetic drive continuous pulp discharge |
| CN112185647A (en) * | 2019-07-04 | 2021-01-05 | 华中科技大学 | Device and method for generating periodic background magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20081111 |