CN205462700U - Utilize small pole pitch to form magnetic separation device of high density magnetic hill value - Google Patents
Utilize small pole pitch to form magnetic separation device of high density magnetic hill value Download PDFInfo
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- CN205462700U CN205462700U CN201620019070.6U CN201620019070U CN205462700U CN 205462700 U CN205462700 U CN 205462700U CN 201620019070 U CN201620019070 U CN 201620019070U CN 205462700 U CN205462700 U CN 205462700U
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Abstract
The utility model discloses an adopting open magnetic system, utilizing small magnetic source, the sharp magnetic separation device that forms high density magnetic hill value of small pole pitch, it includes the magnetic source that a plurality of sizes are the same, a plurality of magnetic source parallel arrangement, and closely arrange between two adjacent magnetic sources, make the magnetic source surface of making up form intensive inhomogeneous magnetic hill, and the magnetic hill value of every adjacent magnetic source edge is greater than the magnetic hill value of magnetic source body center department. The utility model is used for select separately the fine grain grade mineral, because the distance is near between the magnetic source, the pole pitch is little, and the event forms intensive inhomogeneous magnetic hill value and changes in the small size, because the working face that this magnetism system formed is clearly demarcated at small size within range magnetic hill value height, consequently, the adsorption affinity on this magnetism system surface forms with line or point, easily selects other fine grain grade mineral, the precision of improvement ore dressing.
Description
Technical field
This utility model belongs to concentration equipment field, especially design one and utilizes small pole pitch to form high density
The concentration equipment of magnetic hill value.
Background technology
It is the one of mineral resources big distinguishing feature in the world today that selected mineral lean, miscellaneous, thin increase year by year.According to
Statistics, the 1/3 of phosphate mineral in the world, the 1/6 of copper-bearing mineral, 1/5 containing tungsten mineral, exploit in the U.S.
Iron mine 1/10, the 1/2 of Bolivia's cassiterite, and other millions of ton meter mineral be all with fine
The form of grain is lost, and this loss basically is difficult to effectively sort and return owing to fine mineral
Receiving, along with day by day attenuating of mining Ore disseminated grain size, the sorting of fine mineral has become as current ore deposit
One important component part of thing sorting, is increasingly paid close attention to by people；Graded shot ore deposit the most effectively
The a great problem of Wu Shi ore dressing circle.
Utility model content
For solving drawbacks described above, the utility model proposes one and utilize small pole pitch to form high density magnetic hill value
Concentration equipment, it utilizes uneven high density magnetic hill to realize graded shot level mineral.
The technical solution of the utility model is achieved in that
A kind of concentration equipment utilizing small pole pitch to form high density magnetic hill value, it includes that multiple size is identical
Magnetic source, multiple magnetic sources are arranged in parallel, and closely arrange between adjacent two magnetic sources；The equal shape in magnetic source surface
Become intensive uneven magnetic hill, and the magnetic hill value at adjacent two magnetic source edges is more than the magnetic hill peak of magnetic source center
Value.
Wherein, magnetic source is electromagnet source or permanent magnet sources.
Wherein, the adjacent distance width between two magnetic sources is 0.02～2 millimeter.
Wherein, the width of each magnetic source is 4～15 millimeters.
Wherein, this utility model concentration equipment is used for graded shot level mineral, and it is shaped as cuboid, pros
Body, trapezoidal, grooved or polygon.
Wherein, multiple magnetic sources are arranged in multiple lines and multiple rows, the polarity of the polarity of each magnetic source and adjacent four magnetic sources
On the contrary.
Preferably, multiple magnetic sources are arranged in multiple lines and multiple rows, the polarity of each magnetic source be expert to/row to adjacent four
The opposite polarity of individual magnetic source, the polarity of each magnetic source row to/row to the opposite polarity with adjacent four magnetic sources.
Compared with prior art, this utility model has the advantages that this utility model uses open magnetic
System, utilizes small magnetic source, small pole pitch profit to form the concentration equipment of high density magnetic hill value, and it is used for sorting
Fine fraction, micro-size fraction mineral, its magnetic separation effect mainly contact position between adjacent two magnetic sources；Because of magnetic
Closely arrange between small-sized and adjacent two magnetic source in source, on the surface of adjacent two magnetic source contacts
The magnetic hill value of square one-tenth is very big, and the magnetic hill value of magnetic source center is the least, therefore is formed intensive in little area
Uniform magnetic peak change, the position absorption affinity that magnetic hill value is big is very strong, and the position absorption affinity that magnetic hill value is little is poor,
In little areal extent, magnetic hill value height is clearly demarcated, and therefore the absorption affinity on this magnetic system surface is formed with line or point.
The rate of precision being prone to sort fine fraction, micro-size fraction mineral, and ore dressing is high.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the arrangement schematic diagram of this utility model magnetic source.
Fig. 2 is the magnetic hill distribution schematic diagram of Fig. 1.
Fig. 3 is the another kind of arrangement schematic diagram of this utility model magnetic source.
Fig. 4 is the magnetic hill distribution schematic diagram of Fig. 3.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, broadly falls into this utility model
The scope of protection.
" fine fraction " of this utility model indication refers to granularity mineral below 120 mesh；Determining of pole pitch
Justice is the distance of the distance between adjacent two magnetic sources, the i.e. central point of a magnetic source extremely adjacent magnetic source central point.
Referring to figs. 1 through Fig. 4, this utility model discloses and a kind of utilizes small pole pitch to form high density magnetic hill value
Concentration equipment, it is for graded shot level, micro-size fraction mineral, and it is shaped as cuboid, square, ladder
Shape, grooved or polygon.It includes the magnetic source that multiple size is identical, and multiple magnetic sources are arranged in parallel, and adjacent
Closely arranging between two magnetic sources, the adjacent distance width between two magnetic sources is 0.02～2 millimeter；Magnetic
Surface, source is respectively formed intensive uneven magnetic hill, and the magnetic hill value at adjacent two magnetic source edges is more than magnetic source center
The magnetic hill peak value at place.This utility model magnetic source is electromagnet source or permanent magnet sources, and each magnetic source of this utility model
Width is 4～15 millimeters.
The multiple magnetic source of this utility model is arranged in multiple lines and multiple rows, and its arrangement mode has two kinds: (1) such as Fig. 1 institute
Show, the opposite polarity of the polarity of each magnetic source and adjacent four magnetic sources；(2) as it is shown on figure 3, each magnetic source
Polarity be expert to/row to the opposite polarity with adjacent four magnetic sources, the polarity of each magnetic source row to/row to
The opposite polarity of adjacent four magnetic sources.
The mode that this utility model realizes pole pitch small has: (1) magnetic source closely arranges with magnetic source, at magnetic
In the case of source size is certain, the gap between adjacent two magnetic sources is small, therefore reduces pole pitch, at little
Intensive uneven magnetic peak change is formed in long-pending；(2) reduce the volume of magnetic source, arrange in same volume
The magnetic source quantity of row is the most, and magnetic source quantity is the most, and number of magnetic poles is the most, the phase of arrangement in same volume
The pole pitch of adjacent two magnetic sources is the least, therefore forms the uneven magnetic hill value of more crypto set in little areal extent
Change.
It is small that this utility model realizes pole pitch by above two mode, thus realizes shape in little area
Becoming intensive uneven magnetic peak change, its principle analysis is as follows:
(1) arrangement of this utility model magnetic source forms opening magnetic system, and opening magnetic system main structure parameters includes magnetic pole
Away from, the widest ratio wide with pole gap, magnetic system height, width, radius and number of poles.
Wherein, the number of poles of magnetic systemIn formula: L is magnetic system length；L is pole pitch；The height of magnetic source
ForIn formula, S is that magnetic pole section is amassed.
Because pole pitch of the present utility model is 4.02～17mm, therefore when opening magnetic system is by planar alignment, its magnetic
Field nonuniformity coefficient is C=π/l, and its magnetic field force Fmy is Fmy=(HgradH) y=CH0exp (-2cy), in formula,
Fmy is magnetic field force, and unit is A2/m3；H is magnetic field intensity, and unit is A/m；GradH is magnetic field gradient,
Unit is A/m2；H0 is the magnetic field intensity on pole-face (pole gap face), and unit is A/m；Y is in space one
Point size in the Y direction, unit is m.
From formula F my=(HgradH) y=CH0exp (-2cy), in magnetic field a bit (any spatial value
Y) realize the maximization of Fmy, need to realize C → ∞+, can realize by reducing pole pitch l as far as possible；
And reduce pole pitch l and can realize small pole pitch by magnetic source close-packed arrays, or by reducing magnetic pole strength limit
Length realizes；Therefore reduce the volume of magnetic source, in same volume, the magnetic source quantity of arrangement is the most, and magnetic source number
Measuring the most, number of magnetic poles is the most, and in same volume, the pole pitch of adjacent two magnetic sources of arrangement is the least, therefore
Forming the uneven magnetic peak change of more crypto set in little areal extent, its absorption affinity is higher, with reference to Fig. 2.
(2) size of this utility model magnetic source is less, and the width of magnetic source is 4mm～15mm, and by making
Form many magnetic poles with little magnetic source, be expert to the magnetic hill change the most all realizing producing more crypto set with row, thus
Star is to improving concentrate grade and the effect of the response rate.
The number of poles of this utility model magnetic systemWherein L is magnetic system length；L is magnetic system pole span.By making
With little
Magnetic source, is expert to fluctuated with row magnetic hill value in realizing little areal extent, therefore avoids Lou choosing, it is ensured that
Treating capacity；Meanwhile, magnetic hill value height is clearly demarcated so that the absorption affinity on magnetic system surface is formed with line or point, therefore
Ore particle at magnetic source surface rollers, can effectively be rejected and be mingled with under the effect of absorption affinity, improves concentrate taste and returns
Yield, it is easy to sort fine fraction, micro-size fraction mineral.
This utility model is when magnetic separation, and mineral are sent to above concentration equipment by conveyer belt, because of concentration equipment
Upper magnetic hill is worth (i.e. the absorption affinity on concentration equipment surface is fluctuated) fluctuated, therefore mineral are filling through magnetic separation
When putting, its varigrained mineral are sorted out, because mineral are at not offset under the absorption of different absorption affinities
Dynamic, therefore the mineral not being sorted out can sort at the magnetic hill value below, this utility model is because of magnetic hill
It is worth fluctuated in little areal extent, therefore is prone to graded shot level and micro-size fraction mineral.
With one group of 15mm × 4mm × 5mm (little magnetic source) and 150mm × 40mm × 50mm (big magnetic source)
Magnetic source as a example by, little magnetic source and big magnetic source are arranged in same volume, and between adjacent two magnetic sources
Distance is 0.5 millimeter, and application limited element analysis technique (ANSYS10.0) carries out 2D analysis, analyzes its magnetic hill
Value change is learnt: in the case of given volume, and magnetic source material is identical, the distance phase between magnetic source with magnetic source
Under conditions of Tong, use the big magnetic source of magnetic peakedness ratio between magnetic source and the magnetic source that little magnetic source draws more dense, more
It is prone to sort fine fraction and micro-size fraction mineral.
Following as a example by two groups of 15mm × 4mm × 5mm (little magnetic source), two groups of magnetic sources are arranged separately on equally
Volume in, in one of which magnetic source, the distance between adjacent two magnetic sources is 0.5 millimeter, and another group is adjacent
Distance between two magnetic sources is 1.5 millimeters, and application limited element analysis technique (ANSYS10.0) carries out 2D and divides
Analysis, analyzes its magnetic peak change and learns: in the case of given volume, magnetic source material is identical, magnetic source size
Under conditions of identical, the distance between magnetic source and magnetic source is the least, the magnetic hill value between the magnetic source and the magnetic source that draw
More more dense than big magnetic source, it is easier to sort fine fraction and micro-size fraction mineral.
Enumerate four kinds of preparation methoies of this utility model concentration equipment as follows:
(1) for sorting the concentration equipment of limonite, bloodstone:
A diameter of 1200mm, length 2000mm cylindrical tube above, be covered with radially and axially thereof
Small permanent magnet sources, and adjacent two small magnetic source opposite polarity, this small magnetic source trade mark N42, a length of
15mm, a width of 4mm, a height of 3mm, the excitatory direction of the most a height of magnetic source.The surface magnetic in magnetic action face
Field intensity is 4500～5000GS.Cylindrical tube is magnetic conductor, and it is by the general steel plate system that thickness is 8mm
Become；This cylindrical tube is connected with the actuating device of concentration equipment by axle.Thus making magnetic roller is diameter
1200mm, the concentration equipment of a length of 2000mm.On this concentration equipment, install knot screen and unload ore deposit
Device, this concentration equipment i.e. can be used for the sorting of limonite, bloodstone, processes raw ore day up to 500 tons.
Such as the limonite that granularity is 0.15mm is sorted, stand the contrast of ring pulsating magnetic selection device with SLON
Test, when raw ore taste is 39.63%, it is 55.26% that this concentration equipment can obtain concentrate taste, and mine tailing is
16.13%, the response rate is 83.66%；And the concentrate that SLON founds ring pulsating magnetic selection device is 52.54%, mine tailing
Being 22.8%, the response rate is 75.55%.
(2) for sorting the concentration equipment of ferrum in red mud:
Using (1) method in the concentration equipment sorting limonite, bloodstone to prepare magnetic roller is diameter
1500mm, the concentration equipment of long 4000mm, small magnetic source trade mark N48, a length of 15mm, a width of 4mm,
A height of 5mm, the excitatory direction of the most a height of magnetic source.The Surface field intensity in magnetic action face be 5000～
5500GS.Installing knot screen and ore discharging apparatus on this concentration equipment, this concentration equipment i.e. can be used for red
The sorting of ferrum in mud, processes raw ore day up to 1000 tons.
Such as the red mud of Pingguo area of Guangxi is sorted, when raw ore taste is 26.02%, this concentration equipment
Can obtain concentrate taste is 58.23%, and mine tailing taste is 21.05%, and the response rate is 41.70%.
(3) for sorting the magnetic separator of chromite:
Using (1) method in the concentration equipment sorting limonite, bloodstone to prepare magnetic roller is diameter
1200mm, the concentration equipment of long 2000mm, small magnetic source trade mark N42, a length of 15mm, a width of 4mm,
A height of 4mm, the excitatory direction of the most a height of magnetic source.The Surface field intensity in magnetic action face be 3000～
3500GS.Installing knot screen and ore discharging apparatus on this concentration equipment, this concentration equipment i.e. can be used for chromium
The sorting of iron mine, processes raw ore day up to 500 tons.
It is such as that 0.15mm chromite sorts to granularity, when during raw ore is sampled, chromium is 28.17%, should
It is 49.27% that concentration equipment can obtain the taste of concentrate taste chromium, and the taste of ferrum is 16.70%, chromium in mine tailing
Taste is 10.70%, and the response rate of chromium is 78.00%.
(4) for sorting the concentration equipment of manganese ore:
Using (1) method in the concentration equipment sorting limonite, bloodstone to prepare magnetic roller is diameter
1500mm, the concentration equipment of long 3000mm, small magnetic source trade mark N50, a length of 9mm, a width of 9mm,
A height of 6mm, the excitatory direction of the most a height of magnetic source.The Surface field intensity in magnetic action face be 5500～
6000GS.Installing knot screen and ore discharging apparatus on this concentration equipment, this concentration equipment i.e. can be used for chromium
The sorting of iron mine, processes raw ore day up to 750 tons.
It is such as that 0.2mm manganese ore sorts to granularity, when during raw ore is sampled, chromium is 24.7%, this magnetic separation
It is 42.38% that device can obtain concentrate taste, and mine tailing taste is 7.10%, and the response rate is 65.20%.
Above-mentioned four kinds of concentration equipments the most commercially have been achieved for successfully.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (7)
1. one kind utilizes the concentration equipment that small pole pitch forms high density magnetic hill value, it is characterised in that its
Including the magnetic source that multiple sizes are identical, multiple magnetic sources are arranged in parallel, and closely arrange between adjacent two magnetic sources
Row；
Magnetic source surface is respectively formed intensive uneven magnetic hill, and the magnetic hill value at adjacent two magnetic source edges is more than magnetic
The magnetic hill peak value of center, source.
Small pole pitch is utilized to form the concentration equipment of high density magnetic hill value the most as claimed in claim 1, its
Being characterised by, magnetic source is electromagnet source or permanent magnet sources.
Small pole pitch is utilized to form the concentration equipment of high density magnetic hill value the most as claimed in claim 2, its
Being characterised by, the adjacent distance width between two magnetic sources is 0.02～2 millimeter.
Small pole pitch is utilized to form the concentration equipment of high density magnetic hill value the most as claimed in claim 3, its
Being characterised by, the width of each magnetic source is 4～15 millimeters.
Small pole pitch is utilized to form the concentration equipment of high density magnetic hill value the most as claimed in claim 4, its
Be characterised by, its be used for graded shot level mineral, its be shaped as cuboid, square, trapezoidal, grooved or
Polygon.
6. the small pole pitch that utilizes as according to any one of claim 1-5 forms the magnetic of high density magnetic hill value
Screening device, it is characterised in that multiple magnetic sources are arranged in multiple lines and multiple rows, and the polarity of each magnetic source and adjacent four
The opposite polarity of individual magnetic source.
7. the small pole pitch that utilizes as according to any one of claim 1-5 forms the magnetic of high density magnetic hill value
Screening device, it is characterised in that multiple magnetic sources are arranged in multiple lines and multiple rows, the polarity of each magnetic source be expert to/row to
With the opposite polarity of adjacent four magnetic sources, the polarity of each magnetic source row to/row to the pole with adjacent four magnetic sources
Property is contrary.
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| CN201620019070.6U CN205462700U (en) | 2016-01-11 | 2016-01-11 | Utilize small pole pitch to form magnetic separation device of high density magnetic hill value |
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| CN201620019070.6U CN205462700U (en) | 2016-01-11 | 2016-01-11 | Utilize small pole pitch to form magnetic separation device of high density magnetic hill value |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413858A (en) * | 2016-01-11 | 2016-03-23 | 潘静娴 | Magnetic separation device for forming high-density magnetic peak value through small pole pitch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413858A (en) * | 2016-01-11 | 2016-03-23 | 潘静娴 | Magnetic separation device for forming high-density magnetic peak value through small pole pitch |
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