CN103736587A - Inhomogeneous strong magnetic media, magnetic separation equipment and magnetic separation method - Google Patents
Inhomogeneous strong magnetic media, magnetic separation equipment and magnetic separation method Download PDFInfo
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Abstract
The invention discloses inhomogeneous strong magnetic media, magnetic separation equipment, and a magnetic separation method. The inhomogeneous strong magnetic media comprise a plurality of diameter stages of strong magnetic media which are arranged unevenly; the ratio of the radius of each diameter stage of strong magnetic media to the radius of a mineral to be separated is 2.69, and is used for realizing the gradient matching of the minerals with a plurality of particle diameters under the same excitation current, so that the sorting efficiency of strong magnetic separation is improved.
Description
Technical field
The present invention relates to a kind of non-homogeneous strong magnetizing mediums, magnetic plant and magnetic selection method, more particularly, relate to a kind of can when mineral aggregate is carried out to magnetic separation, realize make mineral aggregate in varigrained mineral grain carry out gradient coupling and realize the non-homogeneous strong magnetizing mediums of the efficient separation of every kind of particle diameter mineral grain, the magnetic selection method that comprises the magnetic plant of this non-homogeneous strong magnetizing mediums and use this non-homogeneous strong magnetizing mediums to carry out magnetic separation.
Background technology
Vertical ring high-gradient intensity magnetic separator is a kind of vertical strong magnetic separation equipment that is generally used for sorting weak magnetic mineral from the ore of grinding.During work, the magnetic field that the winding coil of vertical ring high-gradient intensity magnetic separator produces, forms loop by upper and lower yoke, change is rotated by direction of rotation, mineral aggregate to be sorted by feed pipe, enter and along upper magnetic pole slit flow through change, wherein, medium is arranged in change, for adsorbing magnetic mineral.
Other mineral aggregate to be selected feeds behind the sorting space of magnetic separator, is subject to being sorted after the acting in conjunction of magnetic force and other mechanical forces (as gravity, centrifugal force, frictional force, resistance of medium etc.).The size of the suffered magnetic force of magnetic mineral particle and the magnetic of mineral own and relevant for adsorbing the medium of magnetic mineral.Therefore, other mineral aggregate to be selected, respectively along different paths, obtains sorting.In general, magnetic-particle is suffered in magnetic field is directly proportional to magnetic field intensity and gradient than the size of magnetic force.
In the technology with current is produced, intensity magnetic separator selects according to the particle mean size of ore particle the strong magnetizing mediums that a kind of diameter is suitable often, therefore in reality, divide and choose; while sorting, under a kind of exciting curent condition, can only look after a kind of mineral grain of particle diameter, that is to say, vertical ring high-gradient intensity magnetic separator still exists a shortcoming: in high intensity magnetic separation operation; magnetic field gradient can not mate with the gradient of mineral grain; therefore whole beneficiating efficiency is not high, and inferior fine magnetite concentrate grade is lower, and concentration ratio is lower.
Summary of the invention
The object of the invention is at least one shortcoming in overcoming the above problems, for this reason, a kind of beneficiating efficiency that can improve vertical ring pulsating high gradient intensity magnetic separator is provided, by realizing the gradient of various granularity mineral, mate, realize the efficient separation of each particle diameter mineral grain non-homogeneous strong magnetizing mediums, comprise the magnetic plant of this medium and use the magnetic selection method of this medium.
According to the one side of exemplary embodiment of the present invention, a kind of non-homogeneous strong magnetizing mediums is provided, described non-homogeneous strong magnetizing mediums comprises the strong magnetizing mediums of arranging inhomogeneous a plurality of footpaths level, for realize the gradient coupling of multiple particle diameter mineral under same exciting curent, the radius of the strong magnetizing mediums of each footpath level with treat that the ratio of the radius of sorting mined material is 2.69.
In the direction that the diameter of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums flows at mineral, can arrange in gradient.
In the direction that the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums can flow at mineral, by the diameter of medium, arrange from coarse to fine.
The quantity of the strong magnetizing mediums of each footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums can be different.
Gap between the strong magnetizing mediums of each footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums can be different.
Described non-homogeneous strong magnetizing mediums can comprise 3-7 footpath level.
Described non-homogeneous strong magnetizing mediums can comprise 3-5 footpath level.
According to exemplary embodiment of the present invention on the other hand, provide a kind of magnetic plant, described magnetic plant comprises a kind of non-homogeneous strong magnetizing mediums recited above.
According to exemplary embodiment of the present invention on the other hand, provide a kind of magnetic selection method, described magnetic selection method comprises the steps: to select non-homogeneous strong magnetizing mediums as above; Select exciting curent; Under the exciting curent of having selected, by the non-homogeneous strong magnetizing mediums of having selected, mate with the gradient of multiple particle diameter mineral, described multiple particle diameter mineral are sorted, wherein, diameter, quantity and the gap of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums and described exciting curent are determined according to the particle diameter of the different minerals in mineral to be selected and content.
The diameter of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums can be determined according to the particle diameter of the different minerals in mineral to be selected; The quantity of the strong magnetizing mediums of each the footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums can be required according to the corresponding mineral in mineral to be selected surface recently determine; Gap between the strong magnetizing mediums of each the footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums can be determined according to the required size of corresponding mineral in mineral to be selected.
Adopt non-uniform dielectric of the present invention, comprise the magnetic plant of this medium and use the magnetic selection method of this medium, can reach at least one in following significant technique effect: the beneficiating efficiency that significantly improves intensity magnetic separator sorting weak magnetic minerals, effectively reduce tailings grade, improve concentrate grade, under the condition of same exciting curent, realize the gradient coupling of every kind of particle diameter mineral, realize the optimization of strong magnetic operation.
Accompanying drawing explanation
Fig. 1 is the overall alignment figure of strong magnetic change medium.
Fig. 2 is the enlarged diagram of arranging on the A-A section in Fig. 1 according to the evenly strong magnetizing mediums of prior art.
Fig. 3 is the enlarged diagram of arranging on the non-homogeneous strong magnetizing mediums according to an illustrative embodiment of the invention A-A section in Fig. 1.
Fig. 4 is with the structure chart of pulsating high gradient magnetic separator with vertical ring according to an exemplary embodiment of the present invention shown in front view.
Fig. 5 is with the structure chart of pulsating high gradient magnetic separator with vertical ring according to an exemplary embodiment of the present invention shown in side view.
Fig. 6 is that non-uniform dielectric carries out the schematic representation of the magnetic selection method of sorting to mineral according to an exemplary embodiment of the present invention.
The specific embodiment
With reference to accompanying drawing, the present invention has been described more fully hereinafter, embodiments of the invention shown in the drawings.Yet the present invention can implement in many different forms, and should not be interpreted as the embodiment that is confined to proposed here.On the contrary, it will be thorough with completely providing these embodiment to make the disclosure, and scope of the present invention is conveyed to those skilled in the art fully.In the accompanying drawings, for clarity, can exaggerate size and the relative size of particle and parts, identical label represents identical element all the time.
Fig. 1 is the overall alignment figure of strong magnetic change medium.
With reference to Fig. 1, hereinafter by the change 4 of take in the strong magnetic separator of ring type as example illustrates non-homogeneous strong magnetizing mediums of the present invention.
Fig. 2 is the enlarged diagram of arranging on the A-A section in Fig. 1 according to the evenly strong magnetizing mediums of prior art.
With reference to Fig. 2, distribution according to the evenly strong magnetizing mediums of prior art in change is even substantially, and the gap between evenly strong magnetizing mediums rod D is even, and the size of evenly strong magnetizing mediums rod D is substantially the same, that is on arrangement mode, thickness are selected and distributed, be, all uniform.
Fig. 3 is the enlarged diagram of arranging on the non-homogeneous strong magnetizing mediums according to an illustrative embodiment of the invention A-A section in Fig. 1.
With reference to Fig. 3, non-homogeneous strong magnetizing mediums according to an illustrative embodiment of the invention comprises arranges inhomogeneous a plurality of footpaths level (D for example
0-D
6) strong magnetizing mediums, non-homogeneous strong magnetizing mediums comprises from coarse to fine the dielectric rod of arranging.In Fig. 3, illustrated from D
0-D
6the strong magnetizing mediums rod of seven footpath levels, arrange from coarse to finely, to adsorb from coarse to fine mineral in the direction flowing at mineral, but the invention is not restricted to this, its footpath level can differently be arranged according to the direction of ore deposit stream as required, for example, according to D
6-D
0order, D
6-D
3-D
1-D
2-D
4-D
0-D
5order etc., as long as can realize the sorting to mineral.
In Fig. 3, D
0-D
6in the level of footpath, the diameter of the strong magnetizing mediums of each footpath level is different, specifically, the diameter of the strong magnetizing mediums of each footpath level is determined according to the particle diameter of the different minerals in mineral to be selected, when carrying out sorting, different minerals in the strong magnetizing mediums absorption material of various footpaths level, reaches the object of simultaneously carrying out sorting under same exciting curent.In addition, D
0-D
6the quantity of the strong magnetizing mediums of each the footpath level in the strong magnetizing mediums of footpath level is different, correspondingly, and to adsorb fully the different mineral of content.Because mineral to be selected are attracted to the surface of strong magnetizing mediums, so the quantity of the strong magnetizing mediums of each footpath level is recently determined according to the required surface of the corresponding mineral in mineral to be selected.In addition, D
0-D
6gap L between the strong magnetizing mediums rod of each the footpath level in the strong magnetizing mediums of footpath level is different.
Specifically, D
0-D
6strong magnetizing mediums and the C of footpath level
0-C
6the mineral aggregate to be selected of grade is gradient coupling, gradient coupling (for example just refers to medium, ferromagnetic media, particularly, thread medium or bar-shaped medium) radius and mineral grain radius should have suitable ratio, the magnetic force acting on when this ratio on contiguous sub magnetic debris is maximum, and this suitable proportionate relationship is called gradient coupling.Magnetic force relational expression Fm=kV │ H │ grad │ B │ according to mineral on magnetizing mediums is known, wherein, and k: volume susceptibility; V: particle volume; H: magnetic field intensity; B: magnetic induction intensity is can reach best gradient at 2.69 o'clock to mate at magnetizing mediums radius and the ratio of particle radius.
Fig. 3 shows the non-homogeneous strong magnetizing mediums with 7 footpath levels, but the invention is not restricted to this, and for example, non-homogeneous strong magnetizing mediums can comprise 3-7 footpath level according to kind and the quantity for the treatment of the different material that ore dressing is included.Preferably, non-homogeneous strong magnetizing mediums can comprise 3-5 footpath level.
Fig. 4 is with the structure chart of pulsating high gradient magnetic separator with vertical ring according to an exemplary embodiment of the present invention shown in front view.Fig. 5 is with the structure chart of pulsating high gradient magnetic separator with vertical ring according to an exemplary embodiment of the present invention shown in side view.Fig. 6 is the schematic representation of the magnetic selection method of the sorting that non-uniform dielectric carries out mineral according to an exemplary embodiment of the present invention.
With reference to Fig. 4 and Fig. 5, vertical ring pulsating high gradient intensity magnetic separator comprises pulsing mechanism 1, magnetizing coil 2, iron yoke 3, change 4, mine feeding bucket 5, rinsing bucket 6, concentrate flusher 7, concentrate bucket 8, middle ore bucket 9, mine tailing bucket 10, liquid level bucket 11, change driving mechanism 12, frame 13, wherein, by F, represented to ore deposit, clear water is represented by W, concentrate represents by C, and chats represents by M, and mine tailing is represented by T.For fear of fuzzy theme of the present invention, by the feature relevant to non-homogeneous strong magnetizing mediums of describing in detail in vertical ring pulsating high gradient intensity magnetic separator.
In exemplary embodiment according to the present invention, change 4 comprises support ring and non-homogeneous strong magnetizing mediums as shown in Figure 3.As shown in Figure 4, the bottom of change 4 and magnetizing coil 2 are overlapping, in overlapping part, by magnetizing coil, produce magnetic field, and change 4 does not have magnetic field with the overlapping top of magnetizing coil 2.
Mineral aggregate is fed from mine feeding bucket 5 (as shown in F), along upper yoke slit flow through change 4, the non-homogeneous strong magnetizing mediums of uneven, the upper and lower skewness of thickness medium diameter, quantity inequality and/or spacing inequality is disposed in change 4, specifically, at the section of change 4, non-homogeneous strong magnetizing mediums is according to reducing gradually along the orient diameter of (namely from inside to outside) from top to bottom.Non-homogeneous strong magnetizing mediums in change 4 is magnetized in magnetic field; strong magnetizing mediums surface forms high-gradient magnetic field; in ore pulp, magnetic-particle is surperficial at strong magnetizing mediums by sorption; along with the rotation of change 4 is taken to top without field regions; with clear water W, pour in concentrate bucket 8, non-magnetic particle or mine tailing T flow into mine tailing bucket 10 along lower yoke gap.
To the inhomogeneous sorting mineral process of granularity as shown in Figure 6, in figure, the particle of the top represents raw mineral materials to be sorted, and comprises weak magnetic mineral and non magnetic ore, weak magnetic mineral and the non magnetic ore of seedy and particulate in giving ore deposit.When material passes through medium, because the suffered magnetic force of mineral is to be directly proportional to the product of background lectromagnetism field to magnetic field gradient, unified regional background field intensity in sorting is identical, therefore, when by strong magnetizing mediums top, seedy magnetic mineral is attracted on the thick medium that magnetic field gradient is less above, now due to particulate magnetic mineral, to adsorb required magnetic field gradient higher, fine mineral can not adsorb on thick medium, in the time of on dropping to thin medium, it just can be attracted on thin medium, if only have thick medium above, this part particulate magnetic mineral will fall to entering mine tailing loss with gravity and current.
With reference to Fig. 6, used the strong magnetizing mediums D according to exemplary embodiment of the present invention
0-D
6varigrained magnetic mineral is carried out to sorting, and varigrained magnetic mineral is by the strong magnetizing mediums sorption of Different Diameter level, and last mine tailing T falls into mine tailing bucket 10.In this exemplary embodiment, mine tailing T comprises that nonmagnetic mineral and other do not need by the mineral of magnetic separation.
D
0-D
6the strong magnetizing mediums of footpath level arranged from coarse to fine in the direction of ore deposit stream, superposed thick medium, for example D
1, adsorb major diameter concentrate, be positioned at the thin medium D of bottom
6absorption minor diameter concentrate.The mineral C with different-grain diameter
0-C
6by sorting successively.
Below, will process that use non-homogeneous strong magnetizing mediums according to the present invention to carry out magnetic separation be described.
First, selection comprises the non-homogeneous strong magnetizing mediums of the strong magnetizing mediums of a plurality of footpaths level, specifically, comprise the steps: the selection of (a) medium arrangement mode: in vertical ring pulsating high gradient intensity magnetic separator sorting weak magnetic minerals process, gangue mineral will be through the space between strong magnetizing mediums, and weak magnetic object mineral are promoted and unload by strong magnetizing mediums absorption, realize mineral and carry out sorting according to magnetic power.Because thinner medium has higher gradient, and thinner medium can select thinner mineral also can select thicker mineral, thicker medium can only select thicker mineral grain, therefore strong magnetizing mediums according to change from inside to outside arrangement mode just for from coarse to fine.(b) thickness of medium can be selected according to the granularity thickness of selected material, before selection, first material to be selected is divided into several different footpath levels, each footpath level adopts different media to test, the mineral of every kind of granularity are filtered out to the medium diameter of beneficiating efficiency the best, the strong magnetizing mediums of the selected every kind of diameter of last composite score.(c) selection that medium thickness distributes: the distribution of thickness medium is also inhomogeneous, it is the size distribution according to material screening, varigrained mineral grain is adopted to the strong magnetizing mediums of different diameters, again according to the required dielectric surface of how many calculating of object mineral in Different Diameter level, finally according to the ratio of the media quantity of recently selecting different-diameter on the required surface of every kind of footpath level, last in the arrangement of medium in same plane (, direction perpendicular to ore deposit stream) on, adopt the medium of same diameter as far as possible, spacing between every kind of medium is also arranged according to the thickness of ore particle, it is large that the spacing of thick diameter is wanted, spacing between thin diameter medium should be considered the absorption of mineral grain, consider that again coarse grain gangue can pass through.
Secondly, according to the diameter of the selected medium of each footpath level of having determined, under exciting curent, test, determine best exciting curent.
Finally, under the exciting curent of having selected, by the non-homogeneous strong magnetizing mediums of having selected, mate with the gradient of multiple particle diameter mineral, described multiple particle diameter mineral are sorted, wherein, the diameter of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums and described exciting curent are determined according to the particle diameter of the different minerals in mineral to be selected.
Now, take and further understand the non-homogeneous strong magnetizing mediums in the present invention and use the magnetic selection method of this medium as example for the medium designs coupling of ilmenite ore dressing and to the process of ilmenite ore dressing.
Example
According to exemplary embodiment of the present invention, determine the specific descriptions that the step of diameter of the strong magnetizing mediums of a plurality of footpaths level in non-homogeneous strong magnetizing mediums can be by below and further know.
In the illustrative examples according to the present invention, the ilmenite ores material granularity that need to carry out strong magnetic separation generally, between 2-0.02mm, treats that in this interval the material of sorting is divided into 5 thickness ranks (grade) according to geometric ratio, or 3-5 grade.
The granularmetric composition of material to be selected has been shown in table 1, in addition, the grain size content of material to be selected and mated medium diameter has been shown in table 1, the calculating of the ratio of required media quantity is as shown in table 2.
Table 1 grain size content and dielectric gradient matching list
| Grade (μ m) | 1500 | 540 | 180 | 60 | 20 |
| Weight content (%) | 5 | 25 | 30 | 30 | 10 |
| Used medium diameter (μ m) | 4035 | 1452.6 | 484.2 | 161.4 | 53.8 |
As it can be seen in table 1, the granularity of ilmenite material between 2-0.02mm (referring to the diameter of mineral aggregate) has been divided into 5 grades in this example, the design according to the present invention, the specific implementation process of mineral material being carried out to gradient sorting is not limited to 5 grades in this example, for example, can be 3 grades.
The grade of 1500 μ m, 540 μ m, 180 μ m, 60 μ m and 20 μ m adopts respectively the medium of corresponding 5 footpath levels to carry out sorting, medium diameter used is distributed as staged, carry out particle size matching with the grade for the treatment of sorting, specifically, magnetizing mediums radius/diameter with treat that the ratio of sorting mined material material particle radius/diameter is 2.69.
The diameter that content, grade and corresponding magnetic separation medium according to material to be selected have been shown in table 2 is determined the quantity of the required medium of each footpath level.In an embodiment of the present invention, medium is the different cylinder of diameter, and the quantity of required medium is determined with the radical of required medium.
The required medium radical of table 2 ratio computational chart
| Grade (μ m) | 1500 | 540 | 180 | 60 | 20 | Amount to |
| Percentage by |
5 | 25 | 30 | 30 | 10 | 100 |
| Medium diameter | 4035 | 1453 | 484 | 161 | 54 | ? |
| Media attachment amount | 24421837500 | 1139425250 | 42200935 | 1562998 | 57889 | 25605084572 |
| Medium |
5 | 562 | 18202 | 491461 | 4423150 | ? |
Five different grades of percentage by weight of listing in table 2 (represent with g, the μ m of unit) ilmenite ores material granularity, percentage by weight (%) is represented by c, the medium that simultaneously shows five footpath levels (is represented by d, the μ m of unit), media attachment amount (X) is the total amount of adhering to of adhering to mineral material on single medium, and medium radical is than the ratio of radical that is the setting of five kinds of media, so that mineral aggregate is carried out to sorting efficiently.
The step that explains the quantity of calculating different medium below with reference to table 2, the adhesion amount X of single medium is by formula X=d
2* g calculates, and for example, the grade of material to be selected is in the situation of 1500 μ m, according to the diameter of the required medium of determining in table 2, is 4035 μ m, that is, and and 1500 μ m * 2.69=4035 μ m, the adhesion amount X=4035 of single medium
2* 1500=24421837500, required medium radical is than by formula (c ÷ x) * calculate, in these cases, medium radical ratio=(5 ÷ 24421837500) * 25605084572 ≈ 5, thereby list the selected step to non-homogeneous strong magnetizing mediums in the method for separating of the ilmenite material according to an exemplary embodiment of the present invention with five grades, in this exemplary embodiment, according to selected D
0-D
4non-homogeneous strong magnetizing mediums, has the mineral C of different-grain diameter
0-C
4by sorting successively.
According to exemplary embodiment of the present invention, determine the step of the gap L between medium, can determine according to the required size of corresponding mineral in mineral to be selected.For example, according to an exemplary embodiment of the present invention in ilmenite material, maximum particle diameter C
0the particle diameter of mineral aggregate be 1500 μ m, corresponding, the strong magnetizing mediums D of maximum diameter level
0gap L between the medium of this one-level
0can not be lower than 1500 μ m.
In addition, when adopting according to an exemplary embodiment of the present invention non-homogeneous strong magnetizing mediums, can also carry out Wear-resistant Treatment at dielectric surface, or to the partly separately assembling of thinner medium.Therefore, when medium is thinner, in the very fast situation of Mediawear, can be convenient to frequent replacing, improve the utilization rate of medium, and the medium of separately changing different abrasion conditions can carry out the sorting of mineral, and precision is accurate to be controlled.Also can find out in addition the required thick medium that calculates seldom and thin medium is a lot, specific design according to circumstances while specifically carrying out medium designs for concrete sample ore.
According to exemplary embodiment of the present invention, determine the step of exciting curent, during for certain concrete mineral, first sift out each grade of design, with the strong magnetic machine that the medium of its coupling is installed, carry out the experiment that sorts of different exciting curents respectively, according to experimental data, calculate the comprehensive sorting index under several different exciting curents, more relatively which exciting curent it adopts best.For example, ilmenite material according to an exemplary embodiment of the present invention, sift out five grades of design, with the strong magnetic machine that the medium of five footpath levels of mating from these five grades is installed, carry out the experiment that sorts of different exciting curents respectively, final definite exciting curent adopting.
According to exemplary embodiment of the present invention, adopt non-uniform dielectric of the present invention, comprise the magnetic plant of this medium and use the magnetic selection method of this medium, can significantly improve the beneficiating efficiency of intensity magnetic separator sorting weak magnetic minerals, effectively reduce tailings grade, improve concentrate grade, under the condition of same exciting curent, realize the gradient coupling of every kind of particle diameter mineral, realize the optimization of strong magnetic operation.
To sum up, this invention relates to the improvement of the strong magnetizing mediums of intensity magnetic separator, existing strong magnetizing mediums can not be realized the gradient coupling to varigrained mineral grain at present, still can not reach the high efficiency of high intensity magnetic separation in production, the strong magnetizing mediums that when the present invention makes sorting by the medium of intensity magnetic separator, upper and lower medium is different and distribution also distributes by the requirement of gradient coupling, in process at ore deposit stream through medium, coarse grain mineral are adsorbed on thick above medium, fine mineral is adsorbed on thinner below medium, thereby realize varigrained mineral grain and all realize gradient coupling, can improve to the full extent the efficiency of separation of high intensity magnetic separation, industrial implementation is easy, effect is remarkable.
Although shown embodiments of the invention, without departing from the present invention, can carry out various modifications to embodiment.Scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a non-homogeneous strong magnetizing mediums, it is characterized in that, described non-homogeneous strong magnetizing mediums comprises the strong magnetizing mediums of arranging inhomogeneous a plurality of footpaths level, for realize the gradient coupling of multiple particle diameter mineral under same exciting curent, the radius of the strong magnetizing mediums of each footpath level with treat that the ratio of the radius of sorting mined material is 2.69.
2. non-homogeneous strong magnetizing mediums as claimed in claim 1, is characterized in that, in the direction that the diameter of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums flows at mineral, arranges in gradient.
3. non-homogeneous strong magnetizing mediums as claimed in claim 2, is characterized in that, in the direction that the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums flows at mineral, by the diameter of medium, arranges from coarse to fine.
4. non-homogeneous strong magnetizing mediums as claimed in claim 1, is characterized in that, the quantity of the strong magnetizing mediums of each footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums is different.
5. non-homogeneous strong magnetizing mediums as claimed in claim 1, is characterized in that, the gap between the strong magnetizing mediums of each footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums is different.
6. non-homogeneous strong magnetizing mediums as claimed in claim 1, is characterized in that, described non-homogeneous strong magnetizing mediums comprises 3-7 footpath level.
7. non-homogeneous strong magnetizing mediums as claimed in claim 6, is characterized in that, described non-homogeneous strong magnetizing mediums comprises 3-5 footpath level.
8. a magnetic plant, is characterized in that, described magnetic plant comprises the non-homogeneous strong magnetizing mediums as described in any one claim in claim 1 to 7.
9. a magnetic selection method, is characterized in that, described magnetic selection method comprises the steps:
The non-homogeneous strong magnetizing mediums of selection as described in any one claim in claim 1 to 7;
Select exciting curent;
Under the exciting curent of having selected, by the non-homogeneous strong magnetizing mediums of having selected, mate with the gradient of multiple particle diameter mineral, described multiple particle diameter mineral are sorted,
Wherein, diameter, quantity and the gap of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums and described exciting curent are determined according to the particle diameter of the different minerals in mineral to be selected and content.
10. magnetic selection method as claimed in claim 9, is characterized in that:
The diameter of the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums is determined according to the particle diameter of the different minerals in mineral to be selected;
The quantity of the strong magnetizing mediums of each the footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums is recently determined according to the required surface of the corresponding mineral in mineral to be selected;
Gap between the strong magnetizing mediums of each the footpath level in the strong magnetizing mediums of a plurality of footpaths level in described non-homogeneous strong magnetizing mediums is determined according to the required size of corresponding mineral in mineral to be selected.
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| CN104483165A (en) * | 2014-11-21 | 2015-04-01 | 江苏博迁新材料有限公司 | Sampling method of large-particle-diameter powder in ultrafine magnetic powder |
| CN104525363A (en) * | 2014-12-16 | 2015-04-22 | 攀钢集团矿业有限公司 | Magnetic separator and swivel thereof as well as magnetic separation method |
| CN107552226A (en) * | 2017-11-02 | 2018-01-09 | 河南理工大学 | A kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way |
| CN107824333A (en) * | 2017-12-07 | 2018-03-23 | 武汉理工大学 | A kind of cross arrangement rod medium high gradient magnetic separator control parameter adaptive matching method |
| CN108970805A (en) * | 2018-09-20 | 2018-12-11 | 鞍钢集团矿业有限公司 | A kind of vertical ring polygradient magnetic separator ring revolving structure |
| CN116251672A (en) * | 2022-12-22 | 2023-06-13 | 广东省科学院资源利用与稀土开发研究所 | Horizontal swivel high-gradient magnetic separator |
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| CN104525363B (en) * | 2014-12-16 | 2016-10-26 | 攀钢集团矿业有限公司 | A kind of magnetic separator and change thereof and magnetic selection method |
| CN107552226A (en) * | 2017-11-02 | 2018-01-09 | 河南理工大学 | A kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way |
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| CN116251672A (en) * | 2022-12-22 | 2023-06-13 | 广东省科学院资源利用与稀土开发研究所 | Horizontal swivel high-gradient magnetic separator |
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