CN102489398A - Magnetic matrix used for high silicon cold rolling prism-shaped rod type magnet separator - Google Patents
Magnetic matrix used for high silicon cold rolling prism-shaped rod type magnet separator Download PDFInfo
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- CN102489398A CN102489398A CN2011104307814A CN201110430781A CN102489398A CN 102489398 A CN102489398 A CN 102489398A CN 2011104307814 A CN2011104307814 A CN 2011104307814A CN 201110430781 A CN201110430781 A CN 201110430781A CN 102489398 A CN102489398 A CN 102489398A
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- magnetic
- water chestnut
- high silicon
- cold rolling
- magnetic conductive
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- 239000011159 matrix material Substances 0.000 title claims abstract description 49
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 31
- 239000010703 silicon Substances 0.000 title claims abstract description 31
- 238000005097 cold rolling Methods 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000010960 cold rolled steel Substances 0.000 claims abstract description 6
- 240000001085 Trapa natans Species 0.000 claims description 56
- 235000009165 saligot Nutrition 0.000 claims description 56
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims description 51
- 235000014364 Trapa natans Nutrition 0.000 claims description 51
- 239000006148 magnetic separator Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 abstract description 14
- 230000005389 magnetism Effects 0.000 abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000010419 fine particle Substances 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229910001608 iron mineral Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011010 flushing procedure 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
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery 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
The invention relates to a magnetic matrix used for a high silicon cold rolling prism-shaped rod type magnet separator, which belongs to the mineral processing equipment technical field. The invention is characterized in that the magnetic matrix is composed of two blocks of nonmagnetic metal plates and a plurality of high silicon cold rolling prism-shaped rod type magnetic conductive medium rods fixed in the nonmagnetic metal plates, two blocks of nonmagnetic metal plates are mutually parallel and embedded in a sorting space, the high silicon cold rolling prism-shaped rod type magnetic conductive medium rods are vertically fixed between two blocks of nonmagnetic metal plates to form a magnetic matrix sorting box. The high silicon cold rolling prism-shaped rod type magnetic conductive medium rods are prepared by the high silicon cold-rolled steel bar, the section is equilateral rhombus, a long pointed part of the prism-shaped rod is arranged towards to the direction of the magnetic field. The magnetic matrix used for the high silicon cold rolling prism-shaped rod type magnet separator possesses the advantages of high magnetic field gradient, large sorting space, high efficiency, energy saving, high-hardness and wear resistance, rust resistance, corrosion resistance, small retentive magnetism and the like, the better ore dressing index can be acquired, the magnetic matrix is especially suitable for recovering the weakly magnetic mineral particles with fine particle fraction.
Description
Affiliated technical field
The present invention relates to the cold rolling water chestnut post of a kind of high silicon bar type magnetic separator and use magnetic matrix, belong to technical field of mineral processing equipment.
Background technology
Increase along with resource consumption; The iron ore deposit of ferromagnetism iron ore and high-quality reduces day by day; The iron ore resource that the ore dressing of mining metallurgical engineering steel industry is faced mainly is to be 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.Particularly the magnetic matrix of intensity magnetic separator is one of key technology and core technology of intensity magnetic separator, and the magnetic matrix of existing intensity magnetic separator generally uses the netted medium of spherical medium, the closely filling of pole medium, the closely filling of tooth plate medium, the filling at interval of filling at interval, the tight steel wool medium of 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 weak magnetic conductivity mineral.Non-uniform magnetic-field to the seizure power of magnetic conductivity ore particle is:
F=
m·
ν·
H·
gradH
In the formula,
mIt is the quality of ore particle;
νIt is the specific susceptibility of ore particle;
HBe 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 magnetic separator sorts the background magnetic field intensity in space
HObtain through electric energy.By knowing in the formula, for catching quality
mLittle fine mineral particle (quality is very little) and seizure specific susceptibility
νLittle weak magnetic mineral, otherwise increasing energy consumption improves magnetic field intensity
H, or increasing magnetic field gradient increases the seizure power to ore particle
FFor this reason, people have invented high gradient magnetic separator, reduce the background magnetic field intensity that magnetic separator sorts the space through improving magnetic field gradient, thus saves energy.
Operation principle according to magnetic separator: in field region, magnetic matrix is adsorbed on the iron mineral in the ore pulp on the medium by magnetic field force, for the rate of recovery and the energy efficient that improves iron mineral, requires the permeability of magnetic matrix to be the bigger the better, and gradient is high more good more; And the ore particle of absorption when the magnetic matrix band moves together and leaves field region; After the concentrate zone in ore deposit is unloaded in arrival; Be ore deposit rate of unloading that improves concentrate and the water consumption of practicing thrift flushing water, require magnetic matrix that lower remanent magnetism will be arranged again, promptly require the remanent magnetism of magnetic matrix low more good more.
In addition, magnetic matrix has the high speed of ore in mechanical movement and the ore pulp to wash away rubbing action in addition, thereby also needs antirust and wear-resisting characteristic owing to be operated in the ore pulp.At present, it is main with magnetic stainless steel and surface of low-carbon steel chrome-plated material that mining processing industry uses the magnetic matrix material of intensity magnetic separator many, though the antirust corrosion resistant of magnetic stainless steel ability, its hardness is low and not wear-resisting, permeability is very low, cause that energy consumption is high, remanent magnetism is also bigger; The hardness of surface of low-carbon steel chrome-plated material low not wear-resisting, permeability is higher, remanent magnetism is very big, service life short (because of the chrome-faced layer back that is worn just can not antirustly lose effect), draw materials easily but price is low.
Summary of the invention
The present invention relates to a kind of highly-effective magnetic separator and use magnetic matrix, utilize it in magnetic separator, to reclaim ultra-fine grain ore particle, improve the resource utilization and the concentrate index of quality, reduce the energy consumption and the water consumption of magnetic separator.
Technical scheme of the present invention is: the cold rolling water chestnut post of high silicon bar type magnetic separator is used magnetic matrix; Form by two non-magnetic conductive metal sheets and the some water chestnut cylindricality magnetic conductive media rods that are fixed on therebetween; Two non-magnetic conductive metal sheets are parallel to each other and can embed the sorting space; Water chestnut cylindricality magnetic conductive media rod is vertically fixed between two non-magnetic conductive metal sheets, constitutes magnetic matrix sorting box.The size of two non-magnetic conductive metal sheets and spacing (being the length of cylindricality magnetic conductive media rod) are confirmed according to the actual conditions in magnetic separator and sorting space, guarantee to embed the sorting space and get final product.
The section of the cold rolling water chestnut cylindricality of said high silicon magnetic conductive media rod is equilateral rhombus, and the long point of water chestnut post rod is installed over against magnetic direction.
The length-width ratio of the cold rolling water chestnut cylindricality of said high silicon magnetic conductive media rod section is 2:1, and concrete size confirms that according to actual needs width is 5～10mm generally speaking.
The cold rolling water chestnut cylindricality of said high silicon magnetic conductive media rod evenly is equally spaced, and the spacing between the magnetic conductive media rod is 5～20mm (specifically confirming according to actual needs).
The water caltrop of the cold rolling water chestnut cylindricality of said high silicon magnetic conductive media rod is the rounding structure.
The cold rolling water chestnut cylindricality of said high silicon magnetic conductive media rod is processed by siliceous 5～6% high silicon cold-rolled steel bar.
The present invention adopts water chestnut cylindricality magnetic conductive media rod; And the long point of water chestnut post rod is installed over against magnetic direction; Magnetic resistance and the remanent magnetism of water chestnut post rod in magnetic circuit is minimum; Make the magnetic line of force vertically the rate of change of unit distance (being magnetic field gradient) improve greatly, thereby can obtain maximum magnetic field gradient and sort the space, efficient and energy-conservation.Simultaneously, utilize siliceous 5～6% the cold rolling bar of high silicon to have high permeability, high wear-resisting firmly, antirust corrosion resistant, premium properties that remanent magnetism is little, further improved the magnetic field intensity of this magnetic matrix, the wearing and tearing, corrosion and the remanent magnetism height that have solved magnetic matrix are stepped on problem.This magnetic matrix can obtain better mineral processing index, is specially adapted to reclaim fine fraction weakly magnetic mineral grain.
Description of drawings
Fig. 1 is a structural representation of the present invention; Among the figure: 1-magnetic separator magnetic pole, 2-water chestnut cylindricality magnetic conductive media rod, the non-magnetic conductive metal sheet of 3-;
Fig. 2 is a magnetic matrix sketch map of the present invention;
Fig. 3 is existing pole type magnetic matrix sketch map;
Fig. 4 is a magnetic matrix of the present invention magnetic field principle schematic;
Fig. 5 is an existing pole type magnetic matrix magnetic field principle schematic.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further elaboration, but protection scope of the present invention is not limited to said content.
Embodiment 1: like Fig. 1,2, shown in 4; The cold rolling water chestnut post of this high silicon bar type magnetic separator is used magnetic matrix; Form by two non-magnetic conductive metal sheets 3 and 28 water chestnut cylindricality magnetic conductive media rods 2 that are fixed on therebetween; Two non-magnetic conductive metal sheets 3 are parallel to each other and can embed the sorting space, and water chestnut cylindricality magnetic conductive media rod 2 is vertically fixed between two non-magnetic conductive metal sheets 3, constitute magnetic matrix sorting box.The length and width of two non-magnetic conductive metal sheets is 210 * 160mm, and the spacing between two plates (being the length of cylindricality magnetic conductive media rod) is 500mm.The section of water chestnut cylindricality magnetic conductive media rod is equilateral rhombus, and its long point is installed over against magnetic direction.The length-width ratio of water chestnut cylindricality magnetic conductive media rod 2 sections is that 2:1, width are 10mm.Water chestnut cylindricality magnetic conductive media rod 2 evenly is equally spaced, and the spacing between the magnetic conductive media rod 2 is 20mm.Water chestnut cylindricality magnetic conductive media rod 2 is processed by siliceous 6% high silicon cold-rolled steel bar, and its water caltrop is the rounding structure.
Like Fig. 4, shown in 5, the magnetic field space that sorts of magnetic separator is the section space between two magnetic pole N and S, if there is not magnetic matrix, the magnetic field in this space is close to and is uniform magnetic field, and uniform magnetic field is not almost caught power to the magnetic ore particle, promptly can not reclaim ore particle.When be employed in sort in the magnetic field space magnetic matrix is installed after, its magnetic field has become non-uniform magnetic-field.
Like Fig. 3, shown in 5; For pole type magnetic matrix commonly used; Its 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, and 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, no matter how to increase energy consumption, do not reach the required magnetic field gradient of some microfine ore particle yet.
Like Fig. 1,2, shown in 4; Use magnetic matrix for the cold rolling water chestnut post of this high silicon bar type magnetic separator, be the water chestnut cylindricality magnetic conductive media rod of equilateral rhombus owing to adopt section, and will grow point and install over against magnetic direction; Thereby make its magnetic resistance and remanent magnetism in magnetic circuit minimum; The magnetic line of force vertically rate of change of unit distance (being magnetic field gradient) then improves greatly, can obtain maximum magnetic field gradient and sort the space, and is efficient and energy-conservation.
Embodiment 2: like Fig. 1,2, shown in 4; The cold rolling water chestnut post of this high silicon bar type magnetic separator is used magnetic matrix; Form by two non-magnetic conductive metal sheets 3 and 60 water chestnut cylindricality magnetic conductive media rods 2 that are fixed on therebetween; Two non-magnetic conductive metal sheets 3 are parallel to each other and can embed the sorting space, and water chestnut cylindricality magnetic conductive media rod 2 is vertically fixed between two non-magnetic conductive metal sheets 3, constitute magnetic matrix sorting box.The length and width of two non-magnetic conductive metal sheets 3 is 150 * 90mm, and the spacing between two plates (being the length of cylindricality magnetic conductive media rod) is 300mm.The section of water chestnut cylindricality magnetic conductive media rod 2 is equilateral rhombus, and its long point is installed over against magnetic direction.The length-width ratio of water chestnut cylindricality magnetic conductive media rod 2 sections is that 2:1, width are 5mm.Water chestnut cylindricality magnetic conductive media rod 2 evenly is equally spaced, and the spacing between the magnetic conductive media rod 2 is 5mm.Water chestnut cylindricality magnetic conductive media rod 2 is processed by siliceous 5% high silicon cold-rolled steel bar, and its water caltrop is the rounding structure.
Embodiment 3: like Fig. 1,2, shown in 4; The cold rolling water chestnut post of this high silicon bar type magnetic separator is used magnetic matrix; Form by two non-magnetic conductive metal sheets 3 and 50 water chestnut cylindricality magnetic conductive media rods 2 that are fixed on therebetween; Two non-magnetic conductive metal sheets 3 are parallel to each other and can embed the sorting space, and water chestnut cylindricality magnetic conductive media rod 2 is vertically fixed between two non-magnetic conductive metal sheets 3, constitute magnetic matrix sorting box.The length and width of two non-magnetic conductive metal sheets 3 is 180 * 130mm, and the spacing between two plates (being the length of cylindricality magnetic conductive media rod) is 400mm.The section of water chestnut cylindricality magnetic conductive media rod 2 is equilateral rhombus, and its long point is installed over against magnetic direction.The length-width ratio of water chestnut cylindricality magnetic conductive media rod 2 sections is that 2:1, width are 8mm.Water chestnut cylindricality magnetic conductive media rod 2 evenly is equally spaced, and the spacing between the magnetic conductive media rod 2 is 10mm.Water chestnut cylindricality magnetic conductive media rod 2 is processed by siliceous 5.3% high silicon cold-rolled steel bar, and its water caltrop is the rounding structure.
Claims (6)
1. the cold rolling water chestnut post of a high silicon bar type magnetic separator is used magnetic matrix; It is characterized in that: form by two non-magnetic conductive metal sheets and the some water chestnut cylindricality magnetic conductive media rods that are fixed on therebetween; Two non-magnetic conductive metal sheets are parallel to each other and can embed the sorting space; Water chestnut cylindricality magnetic conductive media rod is vertically fixed between two non-magnetic conductive metal sheets, constitutes magnetic matrix sorting box.
2. the cold rolling water chestnut post of high silicon according to claim 1 bar type magnetic separator is used magnetic matrix, it is characterized in that: the section of water chestnut cylindricality magnetic conductive media rod is equilateral rhombus, and the long point of water chestnut post rod is installed over against magnetic direction.
3. the cold rolling water chestnut post of high silicon according to claim 1 bar type magnetic separator is used magnetic matrix, it is characterized in that: the length-width ratio of water chestnut cylindricality magnetic conductive media rod section is 2:1.
4. the cold rolling water chestnut post of high silicon according to claim 1 bar type magnetic separator is used magnetic matrix, and it is characterized in that: water chestnut cylindricality magnetic conductive media rod evenly is equally spaced, and the spacing between the magnetic conductive media rod is 5～20mm.
5. the cold rolling water chestnut post of high silicon according to claim 1 bar type magnetic separator is used magnetic matrix, it is characterized in that: the water caltrop of water chestnut cylindricality magnetic conductive media rod is the rounding structure.
6. use magnetic matrix according to the cold rolling water chestnut post of each described high silicon of claim 1～5 bar type magnetic separator, it is characterized in that: water chestnut cylindricality magnetic conductive media rod is processed by siliceous 5～6% high silicon cold-rolled steel bar.
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| CN2011104307814A CN102489398A (en) | 2011-12-21 | 2011-12-21 | Magnetic matrix used for high silicon cold rolling prism-shaped rod type magnet separator |
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| CN2011104307814A CN102489398A (en) | 2011-12-21 | 2011-12-21 | Magnetic matrix used for high silicon cold rolling prism-shaped rod type magnet separator |
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| CN102489398A true CN102489398A (en) | 2012-06-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538146A (en) * | 2014-12-18 | 2015-04-22 | 佛山市赛科科技股份有限公司 | Magnetic coil for iron removing device and iron removing device |
| CN109331996A (en) * | 2018-11-06 | 2019-02-15 | 中南大学 | A kind of single side tooth plate medium, two-sided tooth plate medium, tooth plate cartridge and Horizontal ring high intensity magnetic separator |
| CN113758623A (en) * | 2021-09-06 | 2021-12-07 | 西红柿科技（武汉）有限公司 | Adjustable steel structure stress monitoring sensor |
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2011
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Cited By (4)
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|---|---|---|---|---|
| CN104538146A (en) * | 2014-12-18 | 2015-04-22 | 佛山市赛科科技股份有限公司 | Magnetic coil for iron removing device and iron removing device |
| CN109331996A (en) * | 2018-11-06 | 2019-02-15 | 中南大学 | A kind of single side tooth plate medium, two-sided tooth plate medium, tooth plate cartridge and Horizontal ring high intensity magnetic separator |
| CN109331996B (en) * | 2018-11-06 | 2024-05-14 | 中南大学 | Single-sided toothed plate medium, double-sided toothed plate medium, toothed plate medium box and flat ring high intensity magnetic separator |
| CN113758623A (en) * | 2021-09-06 | 2021-12-07 | 西红柿科技（武汉）有限公司 | Adjustable steel structure stress monitoring sensor |
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Application publication date: 20120613 |