CN107185709B - Magnet apparatus, magnetic separator and application - Google Patents
Magnet apparatus, magnetic separator and application Download PDFInfo
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- CN107185709B CN107185709B CN201710559687.6A CN201710559687A CN107185709B CN 107185709 B CN107185709 B CN 107185709B CN 201710559687 A CN201710559687 A CN 201710559687A CN 107185709 B CN107185709 B CN 107185709B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/12—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with magnets moving during operation; with movable pole pieces
Abstract
A kind of magnet apparatus, comprising: magnetic layer；The magnet layer that multiple first magnet portions being adsorbed on the surface of magnetic layer and multiple second magnet portions are constituted, first magnet portion includes the first main magnet unit, first secondary magnet unit, first the first main magnetic patch of main magnet unit is formed along the second direction perpendicular to first direction according to adjacent pole polarity opposed alignment, first secondary magnet unit is formed according to adjacent pole polarity opposed alignment in a second direction by the first secondary magnetic patch, second magnet portion includes the second main magnet unit, second secondary magnet unit, the direction of magnetization of first main magnetic patch and the second main magnetic patch is parallel, first secondary magnetic patch, the direction of magnetization and the first main magnetic patch of second secondary magnetic patch, the direction of magnetization of second main magnetic patch is perpendicular, according to putting in order in a second direction, the main magnetic patch of the first of same serial number and the second main magnetic patch, the pole polarity of first secondary magnetic patch and the second secondary magnetic patch On the contrary.
Description
Technical field
The present invention relates to ore dressings, especially magnetic dressing field, and in particular to the device of magnetic dressing.
Background technique
The existing magnetic field strength H that magnetic pole strength is generally required using permanent magnet technology sorting weak magnetic minerals0=480~
1600kA/m or magnetic field gradient HgradH=(128~576) × 109A2/m3.Due to existing magnetic material technology of preparing limitation so that
Permanent-magnet material magnetic energy product is limited, it is difficult to reach the magnetic field strength or magnetic field force request of sorting weak magnetic minerals, thus, in practical life
The overwhelming majority is high using energy consumption in production, is easy to happen magnetic blocking, the electromagnetic separator that construction is complicated.
Occur the permanent magnetic separator for sorting weak magnetic minerals that a small number of enterprise developments go out on the market, though such magnetic separator
So using magnetic Circuit Design is squeezed, local magnetic field strength and magnetic field force are high, can reach above-mentioned magnetic field strength and magnetic field force index, but this
Its ore dressing acting surface of class magnetic separator is limited only on magnetic medium, and the magnetic force size that ore particle to be selected is subject in assorting room is very not
, so that mineral processing index (grade and the rate of recovery) is deteriorated, and while the magnetic force size being subject to due to ore particle is inhomogenous, so leakage choosing
Also than more serious.
Summary of the invention
The present invention is exactly that magnetic field force to solve the problems, such as existing permanent magnetic separator and magnetic field strength are non-uniform, provides one
The magnet apparatus and magnetic separator of kind high magnetic field intensity, highfield power and magnetic force equilibrium.
A kind of magnet apparatus characterized by comprising magnetic layer；And magnet layer, it is arranged on magnetic layer, wherein magnetic
Body layer is staggeredly adsorbed in magnetic conduction layer surface along first direction by multiple first magnet portions and multiple second magnet portions and is constituted, and first
Magnet portion includes a the first main magnet units and b first secondary magnet unit, and the first main magnet unit is by c the first main magnetic patch
It is formed along the second direction perpendicular with first direction according to adjacent pole polarity opposed alignment, the first secondary magnet unit is by d
First secondary magnetic patch is formed according to adjacent pole polarity opposed alignment in a second direction, the magnetic direction of the first secondary magnetic patch and the first master
The magnetic direction of magnetic patch is perpendicular, and the second magnet portion includes a the second main magnet units and b second secondary magnet unit, and second
Main magnet unit is formed according to adjacent pole polarity opposed alignment in a second direction by c the second main magnetic patch, the second secondary magnet list
Member is formed according to adjacent pole polarity opposed alignment in a second direction by d second secondary magnetic patch, the magnetic direction of the second secondary magnetic patch
It is perpendicular with the magnetic direction of the second main magnetic patch, according to putting in order in a second direction, the main magnetic patch of the first of same serial number
With the pole polarity of the second main magnetic patch on the contrary, according to putting in order in a second direction, the secondary magnetic patch of the first of same serial number and
The pole polarity of second secondary magnetic patch is on the contrary, a, b, c, d are positive integer, and a >=b >=1, c >=d >=1.
Magnet apparatus provided by the invention can also have the feature that, it is characterised in that: wherein, c:d=i, i are
Odd number more than or equal to 3, a are the integer more than or equal to 2, and b 1, a the first main magnet units are continuously set along first direction
It sets, the pole polarity of the first adjacent main magnetic patch is identical in a first direction, and a the second main magnet units are continuous along first direction
Setting, the pole polarity of the second adjacent main magnetic patch is identical in a first direction.
Magnet apparatus provided by the invention can also have the feature that, it is characterised in that: wherein, the first main magnetic patch
And second the magnetic direction of main magnetic patch be the direction perpendicular with the upper surface of magnetic layer, the first secondary magnetic patch and the second secondary magnetic patch
Magnetic direction is the direction parallel with first direction.
Magnet apparatus provided by the invention can also have the feature that, it is characterised in that: wherein, each first is secondary
Magnetic patch is corresponding with i the first main magnetic patch in a first direction, pole polarity of the first secondary magnetic patch towards i the first main magnetic patch
It is identical as the i polarity of magnetic pole of upper surface of the first main magnetic patch in middle position of the first main magnetic patch, each second secondary magnetic
Block is corresponding with i the second main magnetic patch in a first direction, the second secondary magnetic patch towards i the second main magnetic patch pole polarity with
The polarity of the magnetic pole of the upper surface of the second main magnetic patch in the middle position of the i the second main magnetic patch is identical.
Magnet apparatus provided by the invention can also have the feature that, it is characterised in that: wherein, described first is main
Magnetic patch and the second main block shape size are identical, are length 10-18mm, width 4-18mm, height 3-18mm's is rectangular
Body, it is length 10-54mm, width 2-18mm, height that the described first secondary magnetic patch and the second secondary block shape size are identical
The cuboid of 3-18mm.
Magnet apparatus provided by the invention can also have the feature that, it is characterised in that: wherein, magnetic layer is electricity
Plate or cylinder made of the ferrocobalt or carbon structure steel material of work pure iron or high magnetic conduction, the first main magnetic patch, the second main magnetic patch,
First secondary magnetic patch and the second secondary magnetic patch are ferrite permanent-magnet block or rare earth permanent magnet block.
Magnet apparatus provided by the invention can also have the feature that, which is characterized in that further include: protective layer, packet
It overlays on magnet layer and is protected.
The present invention also provides a kind of drum magnetic separators, it is characterised in that includes above-mentioned magnet apparatus, wherein magnetic layer
For cylinder made of circular permeability magnetic material, first direction is the circumferential direction of the cylinder, and second direction is the axial direction of the cylinder.
The present invention also provides a kind of board-like magnetic separators characterized by comprising above-mentioned magnet apparatus, wherein magnetic layer
For the magnetic conductive board of rectangle, first direction is the longitudinal direction of the magnetic conductive board, and second direction is the transverse direction of the magnetic conductive board.
The present invention also provides application of the above-mentioned magnet apparatus in magnetic separating mineral or removal of impurities, it is characterised in that: institute
Stating mineral is ilmenite, chromite, manganese ore, speculum iron, limonite, and the removal of impurities is from albite, potassium feldspar, quartz sand, glues
Except iron or other strongly magnetic minerals or metal in soil.
Invention action and effect
Provided magnet apparatus according to the present invention, because the device includes staggered first magnet portion and the second magnetic
Body portion, and each magnet portion includes main magnet unit and secondary magnet unit, main magnet unit is pressed in a second direction by main magnetic patch
Adjacent pole polarity opposed alignment of taking a picture forms, and secondary magnet unit is arranged according to adjacent pole polarity on the contrary in a second direction by secondary magnetic patch
It arranges, and main magnetic patch and second of the magnetic direction of main magnetic patch perpendicular to the magnetic direction of secondary magnetic patch, in the first magnet portion
In magnet portion the main magnetic patch of corresponding position pole polarity on the contrary, main magnetic patch in the first magnet portion with it is right in the second magnet portion
The pole polarity of the secondary magnetic patch at position is answered on the contrary, the full magnetic surface that the first magnet portion and the second magnet portion are constituted has adjacent magnetic
The magnetic pole of block is the compound magnetic system of NS, NN, SS, forms full magnetic surface permanent magnetism bluk recombination magnetic system.
Since the magnetic pole between the full magnetic surface is N towards S, S is towards N, and towards N, S's N attracts each other towards S with most
Small pole pitch close-packed arrays are arranged, and distance is small between magnetic pole, just have bigger absorption to same (middle magnetic, weak magnetic) mineral
Power can preferably overcome leakage to select.
Since above-mentioned main magnetic patch, secondary magnetic patch are capable of forming close compound magnetic system, so the magnetic field point of effect magnetic surface entirely
Cloth is balanced, and mineral processing index is good, production capacity is high.
Particularly, magnet apparatus provided by the invention, since main magnet unit is different with the secondary magnetic direction of magnet unit,
When by main magnetic patch and secondary magnetic patch, magnetic field strength and gradient mutate material: by changing with biggish magnetic field force
For lesser magnetic field force, and magnetic direction also mutates, and mutation process can carry out magnetic separation again to material, in the process
So that the impurity being mingled in the target material with weak magnetic is because magnetic field becomes smaller suddenly, direction changes and generates repeatedly for meeting
Rolling accelerates from full magnetic action emaciated face from and then playing the role of secondary magnetic separation, further increase the grade of mineral.
Detailed description of the invention
Fig. 1 is the side view of the magnet apparatus in drum magnetic separator of the invention；
Fig. 2 is the main view of the magnet apparatus in drum magnetic separator of the invention；
Fig. 3 is the side view of the magnet apparatus in board-like magnetic separator of the invention；And
Fig. 4 is the main view of the magnet apparatus in board-like magnetic separator of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Specific structure of the invention is further described in attached drawing.
Embodiment one
Fig. 1 is the side view of the magnet apparatus in drum magnetic separator of the invention.
Fig. 2 is the main view of the magnet apparatus in drum magnetic separator of the invention.
The present embodiment is by taking drum magnetic separator as an example, and as shown in Figure 1, 2, which includes columnar magnet apparatus
100 and support cylinder shape magnet apparatus 100 support shaft and corresponding driving device (not shown).Ore pulp is from magnetic
It is flowed through on body device 100, is rolled in the appearance face contact of the magnet apparatus 10 of driving device driving, complete the isolated essence of magnetic separation
Mine.
As shown in Figure 1, magnet apparatus 100 includes cartridge type magnetic layer 10, multiple first magnet portions 20 and multiple second magnets
The magnet layer and protective layer 40 that portion 30 is constituted.
Cartridge type magnetic layer 10 is circular cylinder, and diameter 800-1500mm, length 500-4000mm are electrician
The cylinder that the plate of the ferrocobalt or carbon structure steel material of pure iron or high magnetic conduction turns around, plate thickness 10-20mm.This reality
It applies in example, cartridge type magnetic layer 10 is the cylinder that the plate of the carbon structure steel material of 10mm thickness turns around.
Multiple first magnet portions 20 being adsorbed on the surface of cartridge type magnetic layer 10 and multiple second magnet portions 30 constitute magnetic
Body layer.As shown in Fig. 2, first direction, that is, cylinder the circumferential direction of the first magnet portion 20 and the second magnet portion 30 along cartridge type magnetic layer 10
It is staggered and constitutes full magnetic surface.
As shown in Fig. 2, the first magnet portion 20 includes 2 first the first secondary magnet units 22 of main magnet unit 21 and 1.The
One main magnet unit 21 is formed by c the first main magnetic patch 211 are i.e. axial in a second direction according to adjacent pole polarity opposed alignment.
2 the first main magnet units 21 are and the first adjacent main magnetic patch 211 magnetic poles each other along the i.e. circumferentially continuous setting of first direction
Polarity is identical.
First main magnetic patch 211 is ferrite permanent magnet or rare-earth permanent magnet, preferably ndfeb magnet.First main magnetic patch 211
Shape can be for the multi-edge column-shapeds such as cube shaped, cuboid or triangular prism, pentagonal prism etc., the magnetic field of the first main magnetic patch 211
Direction is the radial direction perpendicular to cartridge type magnetizer 10.In the present embodiment, the main magnetic patch 211 of all first is the neodymium of cuboid
Iron boron magnets block, size range are length 10-18mm, and width 4-18mm, height 3-18mm, the direction along height is magnetic
Field direction.
First secondary magnet unit 22 is i.e. axial according to adjacent pole polarity phase in a second direction by d first secondary magnetic patch 221
Reciprocal permutation forms.First secondary 221 magnetic direction of magnetic patch and the first main 211 magnetic direction of magnetic patch are perpendicular, in the present embodiment, first
The magnetic direction of secondary magnetic patch 221 is that first direction is that circumferentially, the adjacent first secondary magnetic patch is NS along 221, and SN is mutually adsorbed on one
It rises.
First secondary magnetic patch 221 is ferrite permanent magnet or rare-earth permanent magnet, preferably ndfeb magnet.First secondary magnetic patch 221
Size and the first main magnetic patch 211 it is different, shape can be more ribs such as cube shaped, cuboid or triangular prism, pentagonal prism
Cylindricality etc..In the present embodiment, all first secondary magnetic patch 221 are the neodymium-iron-boron iron block of cuboid, and size range is length
Spend length 10-54mm, width 2-18mm, height 3-18mm, along width direction be magnetic direction, highly with the first main magnetic patch
211 height is equal.
As shown in Fig. 2, the first main magnet unit 21 and the first secondary magnet unit 22 that observation is adjacent, each first secondary magnetic patch
221 is corresponding with 3 the first main magnetic patch 211 on axial (length direction of the i.e. first secondary magnetic patch), 221 court of the first secondary magnetic patch
To the of the middle position (the 2nd piece i.e. in figure) of the pole polarity and this 3 the first main magnetic patch of this 3 the first main magnetic patch 211
The polarity of the magnetic pole of the upper surface of one main magnetic patch 211 is identical.It is in the figure exactly 3 first masters in the first main magnet unit 21
The upper surface magnetic pole of magnetic patch 211 is respectively NSN, SNS, NSN, then corresponding towards the first main magnet unit 21
The magnetic pole of first secondary magnetic patch magnetic 221 is S, N, S and so on.
Second magnet portion 30 includes 2 second the second secondary magnet units 32 of main magnet unit 31 and 1.It is formed and first
Magnet portion 20 is identical, the difference is that the pole polarity of magnetic patch arranges difference.
Second main magnet unit 31 is i.e. axial according to adjacent pole polarity phase in a second direction by c the second main magnetic patch 311
Reciprocal permutation forms.Second secondary magnet unit 32 is i.e. axial according to adjacent pole polarity in a second direction by d second secondary magnetic patch 321
Opposed alignment forms.
The magnetic direction of first main magnetic patch 211 and the second main magnetic patch 311 is parallel, according in second direction, that is, axial direction
It puts in order, the pole polarity of the main magnetic patch 211 of the first of same serial number and the second main magnetic patch 311 is opposite.
The magnetic direction and the first main magnetic patch 211 of the first secondary magnetic patch 321 of secondary magnetic patch 221, second, the second main magnetic patch 311
Magnetic direction is perpendicular, for along the circumferential direction of cartridge type magnetizer 10, according to putting in order in second direction, that is, axial direction,
The pole polarity of the secondary magnetic patch 221 of the first of same serial number and the second secondary magnetic patch 321 is opposite.
It is exactly the first main magnetic patch circumferentially-adjacent in two the first main magnet units 21 in the first magnet portion 20 in Fig. 2
211 upper surface pole polarity is NN, SS, NN, SS, and two the second main magnet units 31 in the second magnet portion 30
In the upper surface pole polarity of circumferentially-adjacent the second main magnetic patch 311 be SS, NN, SS, NN.
It is exactly the upper table of 3 the second main magnetic patch 311 in the second main magnet unit 31 for magnetic patch 321 secondary for second
Face magnetic pole is respectively SNS, NSN, SNS, then corresponding the second secondary magnetic patch magnetic towards the second main magnet unit 31
321 magnetic pole is N, S, N.
In the present embodiment, the first main magnetic patch 211, the second secondary magnetic patch 321 of main the 311, first secondary magnetic patch 221, second of magnetic patch
Height is identical.
Protective layer 40 is coated on the first main magnetic patch 211, the second secondary magnetic patch of main the 311, first secondary magnetic patch 221, second of magnetic patch
On the magnet layer of 321 compositions, for protecting to magnet layer, material that can be good using magnetic permeability is made.The present embodiment is thickness
0.1-0.5mm is spent, the thin plate or band of stainless steel or alloy material that magnetic permeability can be good turn around into cylinder, be directly sleeved on by multiple
First magnet portion 20 and multiple second magnet portions 30 are interlocked on the magnet layer constituted, and entire magnet layer, that is, full magnetic action bread is wrapped up in
Get up to be protected.
Following for application of the magnet apparatus 100 in magnetic separating mineral is illustrated, it is given below using the present embodiment
Drum magnetic separator carrys out the actual effect of magnetic separation ilmenite, chromite, manganese carbonate ore, speculum iron.
1, ilmenite tailing is sorted:
Using the drum magnetic separator working surface diameter 1000mm of the magnet apparatus of the present embodiment, length 3500mm is corresponding
The specific size of main magnetic patch and secondary magnetic patch is selected, sorting Panzhihua Region is discharged into the ilmenite tailing of Tailings Dam, before non-magnetic separation
Containing TiO2It is 7%, the grade index after magnetic separation: ilmenite concentrate contains TiO2For 21% (being fed for flotation), the rate of recovery 55.8%.
Obviously by the size of the main magnetic patch of reasonable selection and secondary magnetic patch, the utilization rate of ilmenite tailing can be greatly improved,
It is the concentrate of high level by the low content tailing magnetic concentration abandoned, is conducive to the secondary recovery of resource, avoids resource
Huge waste.
2, chromite is sorted:
Using the drum magnetic separator working surface diameter 1000mm of the magnet apparatus of the present embodiment, length 4000mm is corresponding
The specific size sorting chromite for selecting main magnetic patch and secondary magnetic patch, contains Cr before non-magnetic separation2O3It is 24%, the grade index after magnetic separation:
Chromite concentrate contains Cr2O3It is 42%, 80% or more the rate of recovery.
Obviously by the size of the main magnetic patch of reasonable selection and secondary magnetic patch, the grade and recycling of chromite can be greatly improved
Rate, change chromite can only gravity treatment be unable to the traditional concept of magnetic separation.
3, manganese carbonate ore is sorted
Using the drum magnetic separator working surface diameter 800mm of the magnet apparatus of the present embodiment, length 2000mm, corresponding choosing
With the specific size of main magnetic patch and secondary magnetic patch, Changyang, hubei Province manganese carbonate ore is sorted, MnCO is contained before non-magnetic separation3It is 8%, after magnetic separation
Grade index: manganic concerntrate contains MnCO3It is 15%, the rate of recovery 78%.
Obviously by the size of the main magnetic patch of reasonable selection and secondary magnetic patch, by the low-grade ore magnetic separation abandoned to available carbon
The rate of recovery of manganese carbonate ore greatly improved in sour manganic concerntrate, avoids the waste of resource.
4, speculum iron is sorted
Using the drum magnetic separator working surface diameter 1200mm of the magnet apparatus of the present embodiment, length 4000mm is corresponding
The specific size for selecting main magnetic patch and secondary magnetic patch, sorts Xinjiang speculum iron, and it is 35% that TFe is contained before non-magnetic separation, the grade after magnetic separation
Index: iron ore concentrate is 62% containing Fe, the rate of recovery 75%.
Obviously by the size of the main magnetic patch of reasonable selection and secondary magnetic patch, the rate of recovery of speculum iron greatly improved.
By above experiment, it can be found that using the drum magnetic separator of magnet apparatus of the invention, to chromite, carbonic acid
Manganese ore, speculum iron magnetic separation recovery rate all 75% or more, the ilmenite remaining fund poor to traditional permanent magnetic separator magnetic separation effect
Also there is ilmenite concentrate containing TiO2It is 21%, the effect of the rate of recovery 55.8%.
As a kind of deformation, the cornerite of the magnetic system of the drum magnetic separator in above-described embodiment is 360 °, can also be according to need
Other degrees being designed as in 60-360 °, corresponding that certain circumferential areas are empty and be not provided with the first magnet portion, second
Magnet portion.
Deformed as another kind, the first magnet portion in drum magnetic separator, the second magnet portion in above-described embodiment be by
According to two the first main magnet units and one first secondary magnet unit, two the second main magnet units and one second secondary magnet list
Member carries out arranged, can also accordingly increase the first main magnet unit, second main according to the property to magnetic separation mineral
Magnet unit number or the first secondary magnet unit, the number of the second secondary magnet unit are configured.
In above-described embodiment, main magnetic patch and secondary magnetic patch all rely solely on own magnetic force and are adsorbed on magnetic layer, as
A kind of deformation can be by being arranged buckle or helicitic texture, or use in order to further strengthen the fixation of magnetic patch on magnetic layer
Main magnetic patch and secondary magnetic patch reinforcement are fixed on magnetic layer by magnetic steel special viscose glue.
Embodiment two
Fig. 3 is the side view of the magnet apparatus in board-like magnetic separator of the invention.
Fig. 4 is the main view of the magnet apparatus in board-like magnetic separator of the invention, has removed protective layer.
Above mentioned embodiment provide a kind of drum magnetic separator, this variation provides a kind of board-like magnetic separator 100*, corresponding
The magnetic layer of magnet apparatus is the magnetic conductive board 10* of rectangle.In the present embodiment and the identical structure of embodiment 1 gives identical volume
Number, first direction is the longitudinal direction of the magnetic conductive board, and second direction is the transverse direction of the magnetic conductive board.
This board-like magnetic separator can both carry out magnetic dressing, be also suitable for from albite, potassium feldspar, quartz sand, clay
Iron or other ferromagnetism impurity are removed in equal non magnetic ores, for example ferromagnetic magnetic iron ore, franklinite mineral or ferroalloy, nickel close
The metal materials such as gold, cobalt alloy.
So the magnet apparatus of the present embodiment can both be used to carry out magnetic separation, same principle, can also from albite,
Iron or other magnetic impurities are removed in the mineral such as potassium feldspar, quartz sand, clay, are applied to the industrial occasions such as ceramics, cement.
The effect and beneficial effect of embodiment
The magnet apparatus according to provided by the present embodiment, because the device includes staggered first magnet portion and second
Magnet portion, and each magnet portion includes main magnet unit and secondary magnet unit, main magnet unit by main magnetic patch in a second direction
It is formed according to adjacent pole polarity opposed alignment, secondary magnet unit is opposite according to adjacent pole polarity in a second direction by secondary magnetic patch
It arranges, and main magnetic patch and of the magnetic direction of main magnetic patch perpendicular to the magnetic direction of secondary magnetic patch, in the first magnet portion
The pole polarity of the main magnetic patch of corresponding position is on the contrary, in main magnetic patch and the second magnet portion in the first magnet portion in two magnet portions
The pole polarity of the secondary magnetic patch of corresponding position on the contrary, the full magnetic surface that the first magnet portion and the second magnet portion are constituted have it is adjacent
The magnetic pole of magnetic patch is the compound magnetic system of NS, NN, SS, forms full magnetic surface permanent magnetism bluk recombination magnetic system.
Since the magnetic pole between the full magnetic surface is N towards S, S is towards N, and towards N, S's N attracts each other towards S with most
Small pole pitch close-packed arrays are arranged, and distance is small between magnetic pole, just have bigger absorption to same (middle magnetic, weak magnetic) mineral
Power can preferably overcome leakage to select.
Since above-mentioned main magnetic patch, secondary magnetic patch are capable of forming close compound magnetic system, so the magnetic field point of effect magnetic surface entirely
Cloth is balanced, and mineral processing index is good, production capacity is high.
Particularly, magnet apparatus provided in this embodiment, not due to main magnet unit and the magnetic direction of secondary magnet unit
Together, when by main magnetic patch and secondary magnetic patch, magnetic field strength and gradient mutate material: by becoming with biggish magnetic field force
Lesser magnetic field force is turned to, and magnetic direction also mutates, mutation process can carry out magnetic separation again, process to material
So that the impurity being mingled in the target material with weak magnetic is because magnetic field becomes smaller suddenly, direction changes and generates more for middle meeting
Secondary rolling accelerates from full magnetic action emaciated face from and then playing the role of secondary magnetic separation, further increase the grade of mineral.
The magnet apparatus of the present embodiment has protective layer, can both prevent from damaging ndfeb magnet when ore dressing or removal of impurities,
It will not influence magnetic separation since the material for using magnetic permeability energy good, magnetic field can penetrate and act on mineral and carry out magnetic separation again simultaneously
Effect.
Claims (10)
1. a kind of magnet apparatus characterized by comprising
Magnetic layer；And
Magnet layer is arranged on the magnetic layer,
Wherein, the magnet layer is staggeredly adsorbed on described lead along first direction by multiple first magnet portions and multiple second magnet portions
It is constituted on magnetic layer surface,
First magnet portion includes a the first main magnet units and b first secondary magnet unit,
The first main magnet unit is by c the first main magnetic patch along the second direction perpendicular with the first direction according to adjacent
Pole polarity opposed alignment forms,
The first secondary magnet unit by d first secondary magnetic patch along the second direction according to adjacent pole polarity opposed alignment and
At,
The magnetic direction of described first secondary magnetic patch and the magnetic direction of the first main magnetic patch are perpendicular,
Second magnet portion includes a the second main magnet units and b second secondary magnet unit,
The second main magnet unit by c the second main magnetic patch along the second direction according to adjacent pole polarity opposed alignment and
At,
The second secondary magnet unit by d second secondary magnetic patch along the second direction according to adjacent pole polarity opposed alignment and
At,
The magnetic direction of described second secondary magnetic patch and the magnetic direction of the second main magnetic patch are perpendicular,
According to putting in order in this second direction, the described first main magnetic patch of same serial number and the second main magnetic patch
Pole polarity on the contrary,
According to putting in order in this second direction, the described first secondary magnetic patch of same serial number and the second secondary magnetic patch
Pole polarity on the contrary,
A, b, c, d are positive integer, and c:d=i, i are the odd number more than or equal to 3,
A is integer more than or equal to 2, b 1,
A the first main magnet units are continuously arranged along the first direction, and a the second main magnet units are along institute
First direction is stated continuously to be arranged.
2. magnet apparatus according to claim 1, it is characterised in that:
Wherein, the pole polarity of adjacent the described first main magnetic patch is identical in said first direction,
The pole polarity of the described second adjacent main magnetic patch is identical in said first direction.
3. magnet apparatus according to claim 2, it is characterised in that:
Wherein, the magnetic direction of the described first main magnetic patch and the second main magnetic patch is perpendicular with the upper surface of the magnetic layer
Direction,
The magnetic direction of described first secondary magnetic patch and the second secondary magnetic patch is the direction parallel with the first direction.
4. magnet apparatus according to claim 3, it is characterised in that:
Wherein, each described first secondary magnetic patch is corresponding with the i first main magnetic patch in said first direction, first pair
Pole polarity and the described first main magnetic in the middle position of the i first main magnetic patch of the magnetic patch towards the i the first main magnetic patch
The polarity of the magnetic pole of the upper surface of block is identical,
Each described second secondary magnetic patch is corresponding with the i second main magnetic patch in said first direction, the second secondary magnetic patch
Towards the pole polarity and the described second main magnetic patch in the middle position of the i the second main magnetic patch of the i the second main magnetic patch
The polarity of the magnetic pole of upper surface is identical.
5. magnet apparatus according to claim 1, it is characterised in that:
Wherein, the described first main magnetic patch and the second main block shape size are identical, are length 10-18mm, width 4-
18mm, the cuboid of height 3-18mm,
Described first secondary magnetic patch and the second secondary block shape size are identical, are length 10-54mm, width 2-18mm, height
Spend the cuboid of 3-18mm.
6. magnet apparatus according to claim 1, it is characterised in that:
Wherein, the magnetic layer is plate or circle made of the ferrocobalt or carbon structure steel material of electrical pure iron or high magnetic conduction
Cylinder,
The first main magnetic patch, the second main magnetic patch, the first secondary magnetic patch and the second secondary magnetic patch are ferrite
Permanent magnets or rare earth permanent magnet block.
7. magnet apparatus according to claim 1, which is characterized in that further include:
Protective layer is coated on the magnet layer.
8. a kind of drum magnetic separator characterized by comprising
Magnet apparatus described in any one of claim 1-7,
Wherein, the magnetic layer is cylinder made of circular permeability magnetic material, and the first direction is the circumferential direction of the cylinder, described
Second direction is the axial direction of the cylinder.
9. a kind of board-like magnetic separator characterized by comprising
Magnet apparatus described in any one of claim 1-7,
Wherein, the magnetic layer is the magnetic conductive board of rectangle, and the first direction is the longitudinal direction of the magnetic conductive board, and the second direction is
The transverse direction of the magnetic conductive board.
10. application of the magnet apparatus described in any one of claim 1-7 in magnetic separating mineral or removal of impurities, feature
It is:
The mineral are the mixture of any one or more of ilmenite, chromite, manganese ore, speculum iron, limonite,
The removal of impurities is from the mixture of any one or more of albite, potassium feldspar, quartz sand, clay except ferromagnetism mine
Object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559687.6A CN107185709B (en) | 2017-07-11 | 2017-07-11 | Magnet apparatus, magnetic separator and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559687.6A CN107185709B (en) | 2017-07-11 | 2017-07-11 | Magnet apparatus, magnetic separator and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107185709A CN107185709A (en) | 2017-09-22 |
| CN107185709B true CN107185709B (en) | 2019-03-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085039A (en) * | 1976-05-24 | 1978-04-18 | Allen James W | Magnetic separator with helical classifying path |
| US4166788A (en) * | 1976-12-08 | 1979-09-04 | Druz Efim L | Method of concentrating magnetic ore and magnetic centrifugal separator for effecting the method |
| CN85201043U (en) * | 1985-04-01 | 1986-02-05 | 长春地质学院 | Separator for separating magnetic material from others of alluvial gold by static magnetism |
| CN88210091U (en) * | 1988-01-27 | 1988-11-09 | 东北工学院 | Magnetic medium |
| CN1053601C (en) * | 1991-02-01 | 2000-06-21 | 包头新材料应用设计研究所 | Neodymium iron boron permanent magnet series for magnetic sorting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207056764U (en) * | 2017-07-11 | 2018-03-02 | 张弦 | Magnet apparatus and magnetic separator |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085039A (en) * | 1976-05-24 | 1978-04-18 | Allen James W | Magnetic separator with helical classifying path |
| US4166788A (en) * | 1976-12-08 | 1979-09-04 | Druz Efim L | Method of concentrating magnetic ore and magnetic centrifugal separator for effecting the method |
| CN85201043U (en) * | 1985-04-01 | 1986-02-05 | 长春地质学院 | Separator for separating magnetic material from others of alluvial gold by static magnetism |
| CN88210091U (en) * | 1988-01-27 | 1988-11-09 | 东北工学院 | Magnetic medium |
| CN1053601C (en) * | 1991-02-01 | 2000-06-21 | 包头新材料应用设计研究所 | Neodymium iron boron permanent magnet series for magnetic sorting machine |
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