CN102335638A - High-gradient magnetic flux converging medium for high intensity magnetic separator - Google Patents
High-gradient magnetic flux converging medium for high intensity magnetic separator Download PDFInfo
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- CN102335638A CN102335638A CN2011103069096A CN201110306909A CN102335638A CN 102335638 A CN102335638 A CN 102335638A CN 2011103069096 A CN2011103069096 A CN 2011103069096A CN 201110306909 A CN201110306909 A CN 201110306909A CN 102335638 A CN102335638 A CN 102335638A
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- 230000004907 flux Effects 0.000 title 1
- 239000006246 high-intensity magnetic separator Substances 0.000 title 1
- 239000006148 magnetic separator Substances 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 24
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 description 32
- 239000002609 medium Substances 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000005265 energy consumption Methods 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012120 mounting media Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Abstract
本发明公开了一种新型用于强磁选机的高梯度聚磁介质，其包括非导磁金属板和导磁介质棒，导磁介质棒的截面为等边菱形，菱形导磁介质棒固定在两块非导磁金属板间构成分选介质盒，两块非导磁金属板平行的嵌入磁选机的分选空间且大小适当，等边菱形导磁介质棒的两个长端顶角（锐角）进行倒圆角处理，本发明的高梯度聚磁介质具有在磁路中磁场梯度高，磁阻小、节约能耗，回收矿粒过程中具有没有“磁短路”现象和不容易堵塞的优点，特别适用于回收微细粒弱磁性矿粒，有效回收粒级下限可达到5微米。The invention discloses a novel high-gradient magnetism-gathering medium used in a strong magnetic separator, which comprises a non-magnetic-conductive metal plate and a magnetic-conductive medium rod. A sorting medium box is formed between two non-magnetic conductive metal plates. The two non-magnetic conductive metal plates are embedded in the sorting space of the magnetic separator in parallel and have an appropriate size. (acute angle) rounded corners, the high gradient magnetic gathering medium of the present invention has high magnetic field gradient in the magnetic circuit, small magnetic resistance, energy saving, no "magnetic short circuit" phenomenon and not easy to block during the recovery of ore particles It is especially suitable for recovering fine and weakly magnetic ore particles, and the lower limit of the effective recovery particle size can reach 5 microns.
Description
Technical field
The present invention relates to a kind of high gradient magnetic matrix that is used for intensity magnetic separator, belong to the ore dressing field in the mining metallurgical engineering Mineral Processing Engineering.
Background technology
The iron ore deposit of ferromagnetism iron ore and high-quality reduces day by day now; And the iron ore resource that the ore dressing of mining metallurgical engineering steel industry is faced mainly is master's the very weak iron ore resource of thin and poor and magnetic with bloodstone, limonite and siderite, and the key technology that effectively reclaims these iron ore resources is to use the high gradient intensity magnetic separator.
The high gradient intensity magnetic separator is the very important preparation equipment of mining metallurgical engineering steel industry, and his quality quality directly has influence on the economic benefit in the utilization rate of iron ore deposit, ore dressing plant, the technical-economic indexes such as energy-saving and emission-reduction in ore dressing plant.The magnetic matrix of intensity magnetic separator is one of key technology and core technology of intensity magnetic separator; The magnetic matrix of present intensity magnetic separator generally uses the spherical medium of the tooth plate medium of filling at interval, the pole medium of filling at interval, tight filling, the netted medium of closely filling, the steel wool medium of tight filling, and the magnetic matrix that is commonly used in the ore dressing is the pole medium of filling at interval and the netted medium of tight filling.
The effect of the magnetic matrix of intensity magnetic separator becomes the uniform magnetic field that sorts the space in the magnetic separator magnetic circuit non-uniform magnetic-field of high gradient, exactly to satisfy the seizure requirement of magnetic separation to the magnetic conductivity mineral.Non-uniform magnetic-field to the seizure power of magnetic conductivity ore particle is:
F=m×k×H
?gradH
The quality of m ore particle in the formula; K is the specific susceptibility of ore particle; H is the background magnetic field intensity that magnetic separator sorts the space; It is the magnetic field gradient of intensity magnetic separator magnetic matrix.
The magnetic field gradient that improves magnetic matrix need not increase energy consumption, just can realize different magnetic field gradients as long as the section configuration of magnetic matrix is different.The quality of ore particle and the specific susceptibility of ore particle are the numerical value of ore particle intrinsic property decision, and the background magnetic field intensity H that magnetic separator sorts the space obtains through electric energy.By knowing in the formula, for seizure quality little fine mineral particle (quality is very little) and the little weak magnetic mineral of seizure specific susceptibility, or increasing energy consumption improves magnetic field intensity H, or increasing magnetic field gradient increases the seizure power F to him.Therefore, for energy efficient, people have just invented high gradient magnetic separator, and high gradient magnetic separator is exactly to reduce the background magnetic field intensity that magnetic separator sorts the space in order to improve magnetic field gradient, and saves energy.
Present mining processing industry with the big minispread of magnetic field gradient of the magnetic matrix of intensity magnetic separator is: the netted medium ﹥ of tight filling is the pole medium of filling at interval.
Closely the netted medium of filling is better to reclaiming the particulate ore particle, but there is the problem of " magnet short-cut path " phenomenon and easy blocking between medium in he and is limited use.And at interval in not high, the magnetic circuit of the pole medium magnetic field gradient of filling magnetic resistance too big and energy consumption is high, but he has and does not have " magnet short-cut path " phenomenon and allow susceptible to plugging advantage and be not widely used.
Summary of the invention
The present invention has overcome the deficiency of prior art, provides a kind of high gradient that is used for intensity magnetic separator to gather magnetic
Medium, the ultra-fine grain ore particle that utilizes the high gradient magnetic matrix in magnetic separator, to reclaim to be difficult to reclaim, the high gradient magnetic matrix among the present invention can also be practiced thrift the energy consumption of magnetic separator.
Theoretical foundation of the present invention:
Non-uniform magnetic-field to the seizure power of magnetic conductivity ore particle is:
F=m×k×HgradH
In the formula: the quality of m ore particle; K is the specific susceptibility of ore particle; H is the background magnetic field intensity that magnetic separator sorts the space; It is the magnetic field gradient of intensity magnetic separator magnetic matrix.
If will reclaim the very little ore particle of quality m, or increase magnetic field intensity with electric energy, but because the limitation of magnetic separator magnetic Circuit Design and materials used, that magnetic field intensity can not be brought up to is very high in magnetic saturation in the magnetic circuit, can reach 1T as common; Increase the magnetic field gradient of magnetic matrix.
The present invention is exactly a special shape of the section configuration of magnetic matrix being made a kind of equilateral rhombus, with the mounting means of interval filling, obtains than the netted medium of tight filling and the higher magnetic field gradient of pole medium of interval filling, and does not have the magnet short-cut path phenomenon.
High gradient magnetic matrix of the present invention comprises non-magnetic conductive metal sheet and magnetic conductive media rod, and the cross section of magnetic conductive media rod is equilateral rhombus, and equilateral rhombus magnetic conductive media rod is fixed on and constitutes medium sorting box between two non-magnetic conductive metal sheets.
Two catercorner lengths of diamond-shaped cross-section described in the present invention are than being 2:1～3:2.
The long-diagonal of diamond-shaped cross-section was parallel with the magnetic field magnetic line direction when magnetic conductive media of rhombus described in the present invention rod was installed.
Rhombus magnetic conductive media rod perhaps is screwed between two non-magnetic conductive metal sheets by vertical welding of certain density or riveted joint among the present invention, and the rhombus magnetic conductive media rod cross section gross area accounts for 40%～50% of non-magnetic conductive metal sheet area.
The sorting space of the parallel embedding magnetic separator of two non-magnetic conductive metal sheets and size are suitably among the present invention.
Two drift angles of equilateral rhombus magnetic conductive media rod among the present invention, promptly parallel with the magnetic field magnetic line direction two long end drift angles (acute angle) carry out rounding and handle.
Below in conjunction with Fig. 1, Fig. 2 its structural principle is introduced.
Fig. 2 is the pole type magnetic matrix of using always; His magnetic line of force vertically rate of change of unit distance (being magnetic field gradient) is less; If will increase magnetic field gradient and just can only reduce the diameter of pole, but the diameter that has reduced pole has just increased the area of magnetic circuit section hollow air gap, magnetic resistance in the whole magnetic circuit is rolled up and rolls up energy consumption; After reaching magnetic saturation, how to increase energy consumption again and also do not reach the required magnetic field seizure power of some microfine ore particle.Pole type magnetic matrix effectively reclaims lower size can reach 19 microns.
Fig. 1 is that ore dressing intensity magnetic separator of the present invention is used the high gradient magnetic matrix; The long-diagonal of diamond-shaped cross-section was parallel with the magnetic field magnetic line direction when it was installed by rhombus magnetic conductive media rod as shown in the figure; Formation has maximum magnetic field gradient and sorts the minimum characteristics of magnetic resistance in space maximum and the magnetic circuit; His magnetic line of force is the rate of change of unit distance (being magnetic field gradient) high by 25% than pole type vertically, and therefore efficient and energy-conservation, he effectively reclaims lower size to the magnetic ore particle can reach 5 microns.
Advantage of the present invention and good effect:
The present invention compares with the general pole type medium of routine, and magnetic field gradient can be high by 25%; Can reclaim 5 μ m ore particles; Magnetic separator is under the same consumption energy situation, and the iron ore rate of recovery can improve 5%～20%; Under the situation that reclaims the identical ore particle and the equal rate of recovery, can practice thrift 20% energy consumption.
The present invention is that a kind of novel magnetic separator is used the high gradient magnetic matrix; Be to adopt the mounting means of filling at interval; His magnetic field gradient is higher than pole type medium, and magnetic resistance is little and energy consumption is low in magnetic circuit, and having does not have " magnet short-cut path " phenomenon and do not allow susceptible to plugging advantage yet.Novel ore dressing intensity magnetic separator of the present invention is used the high gradient magnetic matrix, is specially adapted to reclaim microfine weakly magnetic mineral grain, and effectively reclaim lower size and can reach 5 microns, and efficient, energy-conservation.
Description of drawings
Fig. 1 is the magnetic line of force distribution schematic diagram of magnetic matrix of the present invention.
Among the figure: the 1st, a magnetic pole (N) in magnetic field; The 3rd, equilateral rhombus dielectric rod of the present invention.
Fig. 2 is the magnetic line of force distribution schematic diagram of pole type magnetic matrix.
Among the figure: the 1st, a magnetic pole (N) in magnetic field; The 2nd, the circular dielectric rod that tradition is used.
Fig. 3 is a magnetic matrix rod scheme of installation of the present invention.
Among the figure: the 1st, two magnetic poles (N and S) in magnetic field; The 3rd, 50 identical shaped rhombus magnetic conductive media rods.
Fig. 4 is a pole type magnetic matrix rod sketch map.
Among the figure: the 1st, two magnetic poles (N and S) in magnetic field; The 2nd, the cylinder shape medium rod that 35 identical shaped tradition are used.
Fig. 5 is high gradient magnetic matrix sorting box of the present invention and the sketch map in magnetic field, installed.
Among the figure: the 1st, two magnetic poles (N and S) in magnetic field; The 3rd, equilateral rhombus magnetic matrix rod of the present invention; The 6th, two non-magnetic conductive metal sheets of mounting medium rod, dielectric rod are that screw is vertically fixed on this plate by welding or rivet perhaps.
The specific embodiment
High gradient magnetic matrix (see figure 5) of the present invention is used on XCSQ50 * 70 and dicyclo magnetic separator; Comprise non-magnetic conductive metal sheet 6 and magnetic conductive media rod 3; Dielectric rod is riveted on 6 of two non-magnetic conductive metal sheets and constitutes the separating medium box that size is fit to the magnetic separator sorting chamber; Rhombus magnetic conductive media rod vertically is riveted between two non-magnetic conductive metal sheets by 50% density; Two diagonal length-width ratios of diamond-shaped cross-section are 2:1, and diamond-shaped cross-section two catercorner lengths are 10mm and 5mm respectively, and two drift angles (acute angle) fillet of falling R2mm of dielectric rod is handled.
Among Fig. 5; The magnetic field space that sorts of magnetic separator is like the section space between magnetic pole 1 (N) and magnetic pole 1 (S) among the figure, if there is not magnetic matrix, the magnetic field in this space is close to and is uniform magnetic field; Uniform magnetic field is not almost caught power to the magnetic ore particle, promptly can not reclaim ore particle.When adopt as shown in the figure magnetic matrix has been installed after; the magnetic field that sorts the space has become non-uniform magnetic-field as shown in Figure 1; the magnetic field gradient of novel magnetic matrix is higher by 25% than with similarity condition the round bar shape medium being installed; magnetic separator is under the situation of 0.8T in the background field intensity, can effectively reclaim iron ore or the ilmenite fine mineral particle of 5 μ m, the rate of recovery with use the specific energy raising about 15% mutually of round bar shape medium.Under the situation that reclaims the identical ore particle and the rate of recovery, can practice thrift 20% electromagnetic field energy consumption.
High gradient magnetic matrix provided by the invention after making difform cartridge, is applicable to whole intensity magnetic separators and high gradient magnetic separator, has very big economic benefit and application prospect.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103069096A CN102335638A (en) | 2011-10-12 | 2011-10-12 | High-gradient magnetic flux converging medium for high intensity magnetic separator |
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| CN2011103069096A CN102335638A (en) | 2011-10-12 | 2011-10-12 | High-gradient magnetic flux converging medium for high intensity magnetic separator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357496A (en) * | 2013-08-02 | 2013-10-23 | 山东华特磁电科技股份有限公司 | Medium-fine granule high-gradient wet strongly-magnetic preselecting apparatus |
| CN104492595A (en) * | 2014-12-18 | 2015-04-08 | 佛山市赛科科技股份有限公司 | Medium box and de-ironing device with medium box |
| CN104525370A (en) * | 2014-12-18 | 2015-04-22 | 佛山市赛科科技股份有限公司 | Deironing device |
| CN104689907A (en) * | 2015-02-13 | 2015-06-10 | 中南大学 | Magnetic-gathering medium, magnetic-gathering medium box and magnetic-gathering medium column for magnetic separator and application thereof |
| CN108262161A (en) * | 2017-02-24 | 2018-07-10 | 沈阳隆基电磁科技股份有限公司 | A kind of wet method High gradient high intensity magnetic separator |
| CN108654833A (en) * | 2018-05-09 | 2018-10-16 | 东北大学 | A kind of polypropylene carboxylic acid pretreatment-abnormity medium magnetic separation process |
| CN109530079A (en) * | 2018-11-21 | 2019-03-29 | 中南大学 | Magnetic reconnection closes sorting process |
| CN111672624A (en) * | 2020-06-20 | 2020-09-18 | 河南邦成科技有限公司 | Iron removing device for manufacturing porcelain |
| CN111790520A (en) * | 2019-08-05 | 2020-10-20 | 潍坊奇为新材料科技有限公司 | Magnetic conductive medium for high-gradient magnetic separation chamber |
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| CN202398419U (en) * | 2011-10-12 | 2012-08-29 | 昆明理工大学 | High-gradient magnetism gathering medium for strong magnetic separator |
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2011
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Patent Citations (4)
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| JP2002248375A (en) * | 2001-02-23 | 2002-09-03 | Fumio Tagami | Iron removing tool for magnetic material foreign matter and recovering and removing equipment for the same |
| CN2621815Y (en) * | 2002-12-03 | 2004-06-30 | 中国科学院过程工程研究所 | Clamping-sleeve permanent-magnet separator |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357496A (en) * | 2013-08-02 | 2013-10-23 | 山东华特磁电科技股份有限公司 | Medium-fine granule high-gradient wet strongly-magnetic preselecting apparatus |
| CN103357496B (en) * | 2013-08-02 | 2016-12-07 | 山东华特磁电科技股份有限公司 | Middle high-gradient wet strongly-magnetic pre-selection device |
| CN104492595A (en) * | 2014-12-18 | 2015-04-08 | 佛山市赛科科技股份有限公司 | Medium box and de-ironing device with medium box |
| CN104525370A (en) * | 2014-12-18 | 2015-04-22 | 佛山市赛科科技股份有限公司 | Deironing device |
| CN104689907A (en) * | 2015-02-13 | 2015-06-10 | 中南大学 | Magnetic-gathering medium, magnetic-gathering medium box and magnetic-gathering medium column for magnetic separator and application thereof |
| CN104689907B (en) * | 2015-02-13 | 2017-10-24 | 中南大学 | Magnetic matrix, magnetic matrix box, magnetic matrix post and its application for magnetic separator |
| CN108262161A (en) * | 2017-02-24 | 2018-07-10 | 沈阳隆基电磁科技股份有限公司 | A kind of wet method High gradient high intensity magnetic separator |
| CN108262161B (en) * | 2017-02-24 | 2024-04-02 | 沈阳隆基电磁科技股份有限公司 | Wet process high gradient strong magnetic separator |
| CN108654833A (en) * | 2018-05-09 | 2018-10-16 | 东北大学 | A kind of polypropylene carboxylic acid pretreatment-abnormity medium magnetic separation process |
| CN109530079A (en) * | 2018-11-21 | 2019-03-29 | 中南大学 | Magnetic reconnection closes sorting process |
| CN111790520A (en) * | 2019-08-05 | 2020-10-20 | 潍坊奇为新材料科技有限公司 | Magnetic conductive medium for high-gradient magnetic separation chamber |
| CN111672624A (en) * | 2020-06-20 | 2020-09-18 | 河南邦成科技有限公司 | Iron removing device for manufacturing porcelain |
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Application publication date: 20120201 |