CN103071590A - Magnetic separation device and method - Google Patents
Magnetic separation device and method Download PDFInfo
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- CN103071590A CN103071590A CN2013100502304A CN201310050230A CN103071590A CN 103071590 A CN103071590 A CN 103071590A CN 2013100502304 A CN2013100502304 A CN 2013100502304A CN 201310050230 A CN201310050230 A CN 201310050230A CN 103071590 A CN103071590 A CN 103071590A
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- concentration equipment
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- 238000007885 magnetic separation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005291 magnetic effect Effects 0.000 claims abstract description 189
- 239000006249 magnetic particle Substances 0.000 claims abstract description 83
- 239000000725 suspension Substances 0.000 claims abstract description 41
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 230000005294 ferromagnetic effect Effects 0.000 claims description 12
- 238000010187 selection method Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 67
- 229910052742 iron Inorganic materials 0.000 abstract description 33
- 238000004458 analytical method Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 description 11
- 239000011707 mineral Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- -1 Diphenylamine sulfonic acid sodium salt Chemical class 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 229910001004 magnetic alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 238000008575 Iron Assay Methods 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical class [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000001119 stannous chloride Substances 0.000 description 1
- 235000011150 stannous chloride Nutrition 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The invention relates to a magnetic separation device, which comprises a magnetic body, a nonmagnetic sheath and a first container, wherein the magnetic body is provided with a first magnetic pole and a second magnetic pole, the nonmagnetic sheath is movably sheathed on the first magnetic pole, the first container is used for containing mixture suspension liquid of magnetic particles and nonmagnetic particles, and when the first magnetic pole sheathed with the nonmagnetic sheath is placed into the mixture suspension liquid for absorbing the magnetic particles, the second magnetic pole is positioned above the liquid level of the mixture suspension liquid. The magnetic separation device provided by the invention can be used for simply and fast realize the magnetic separation on the magnetic particles, and the magnetic particle loss caused by accidental magnetic particle bringing out by the magnetic body is effectively prevented. When a magnetic iron content measuring method of the magnetic separation device provided by the invention is adopted, the analysis error caused by magnetic particle bringing by the magnetic body can be avoided, and higher precision and higher accuracy are realized.
Description
Technical field
The invention belongs to the magnetic separation technique field, relate in particular to the magnetic selection method of a kind of concentration equipment and this concentration equipment of application, wherein said concentration equipment is a kind of small size magnetic screening device that is applicable to analyze experiment.
Background technology
Magnetic separation is to utilize the magnetic contrast between the mineral and a kind of beneficiation method that different minerals realize to be separated in non-uniform magnetic field.Selected ore is subject to the acting in conjunction of magnetic force and mechanical force after entering the sorting space of magnetic plant, moves along different paths, and ore pulp is intercepted respectively, just can get different products.
The content of magnetic mineral in magnetic separation tube, magnetic analysis instrument, induction roll-type magnet separator, the strong magnetic mineral separator isodynamic analyzer analysis ore is commonly used in the laboratory, determine ore magnetic separation washability index, technology assessment is carried out in the mineral deposit, check the working condition of magnetic separator, the various Within Monominerals of purifying are to carry out the work of the aspects such as material composition, mineral composition, washability.
Usually, be magnetic iron ore w(mFe)/w(TFe) 〉=85%.Magnetic iron ore magnetic power is with specific susceptibility 3000x10
-6Cm
3/ g is boundary.Be 0.075mm in regulation sample ore granularity, the effective magnetic field intensity of magnet (cover external pelivimetry) is (900 ± 100) * 10
3During/4 π (A/m), with manually repeatedly magnetic separation separation, the iron content total amount of the magnetic mineral of acquisition is Armco magnetic iron content.When low-grade magnetite is carried out magnetic separation with preparation iron fine powder, need the Armco magnetic iron content in the accurate analysis iron ore.In addition, ferromagnetic mensuration also is used for irising out the ore that the available single low intensity magnetic separation method ore dressing of iron ore-deposit is reclaimed.
The ferromagnetic method of separation that extensively adopts at present comprises manual interior magnetic method, wherein the method may further comprise the steps: take by weighing the 0.1000g sample in beaker, adding about 20mL water makes sample wetting, then use the permanent magnet with copper (or glass) cover, the magnetic mineral sucking-off, with wash bottle drip washing magnet the superincumbent non magnetic ore of absorption is washed out, borrow and extract magnet out, magnetic mineral is put into another beaker, repeatedly for several times, till the magnetic mineral in the sample is all selected.Yet though this method operation is simple, precision and the degree of accuracy are all relatively poor, and the same analyst of same sample records the result and sometimes differs up to 3%-4%, difficult the grasp.
Therefore, still need new simple and reliable for structurely, easy to operate, have concentration equipment and method than high precision and the degree of accuracy.
Summary of the invention
The purpose of this invention is to provide a kind of concentration equipment and a kind of magnetic selection method to solve above-mentioned the problems of the prior art, the present invention especially provides following technical scheme for this reason:
1, a kind of concentration equipment, comprise the magnet with the first magnetic pole and second magnetic pole, be enclosed within actively the non magnetic overcoat on described the first magnetic pole, and the first container that is used for the mixture suspension of splendid attire magnetic-particle and non-magnetic particle, wherein when cover had described first magnetic pole of described non magnetic overcoat to place described mixture suspension absorption magnetic-particle, described the second magnetic pole was positioned at the liquid level top of described mixture suspension.When extracting magnet out from non magnetic overcoat, can prevent that magnetic-particle is along moving on the side of non magnetic overcoat.
In the present invention, unless stated otherwise, term " magnetic-particle is adsorbed on the first magnetic pole place " means magnetic-particle and is adsorbed on the adsorption plane of the non magnetic overcoat that is covered in the first magnetic pole under magneticaction.
The part that magnetic is the strongest on the magnet is magnetic pole, and any magnet has two magnetic poles (the N utmost point and the S utmost point), and the common magnetic of magnet part of two magnetic pole centres is very weak.For example, two magnetic poles of bar-shaped magnet are usually at the two ends of magnet, and the middle part magnetic of magnet is very weak, when the first magnetic pole immerses suspension, magnetic-particle will only be adsorbed on the first magnetic pole place, magnetic-particle is not adsorbed because magnetic force is very weak in the middle part of magnet, and the second magnetic pole is not owing to also adsorb magnetic-particle in suspension.Like this, when magnet detached non magnetic overcoat, magnetic-particle will be stayed the end of non magnetic overcoat.
According to certain embodiments of the present invention, described magnet can be any suitable magnet or the combination of a plurality of magnets.For example, described magnet can be electromagnet or permanent magnet, preferred permanent magnet or its combination magnet.The mixture of described magnetic-particle and non-magnetic particle can be the magnetic-particle of any appropriate and the mixture that non-magnetic particle forms, such as containing ferromagnetic iron ore sample powder etc.In some cases, described magnet is cylindrical magnet, and described the first magnetic pole and described the second magnetic pole lay respectively at the two ends of described cylindrical magnet.
2, according to the concentration equipment of technical scheme 1, the distance between described the first magnetic pole and described the second magnetic pole is greater than the degree of depth of described suspension, as long as described the second magnetic pole is positioned at the liquid level top of described suspension.Preferred described distance is greater than 1.2 times of the described degree of depth, preferred 1.5 times, 2 times, 4 times, 6 times, 8 times or 10 times.For example, when described magnet is cylindrical magnet (bar-shaped magnet), its first magnetic pole and the second magnetic pole lay respectively at two ends of cylindrical magnet, and the length of cylindrical magnet is enough to guarantee that when described the first magnetic pole immerses described suspension described the second magnetic pole is positioned at the liquid level top of described suspension.
3, according to the concentration equipment of embodiment 1 or 2, wherein said the first magnetic pole can enter and leave described non magnetic overcoat and can move up and down in described non magnetic overcoat.
4, according to each concentration equipment among the technical scheme 1-3, wherein said magnet comprises permanent magnet and ferromagnet, a magnetic pole of described permanent magnet is connected with a described ferromagnetic end magnetic, another magnetic pole of described permanent magnet is as described the first magnetic pole, and the described ferromagnetic other end is as described the second magnetic pole.Permanent magnet and ferromagnet after preferred the connection form cylindrical magnet, such as cylindric, polygon prism shape magnet etc.Permanent magnet is connected magnetic and is connected with ferromagnet, namely connect by magnetic force.Also can further connect with other modes when needing, such as mutual bonding, riveted joint, bolt connect, be connected with a joggle, the connected mode of any appropriate such as welding, joggle or its combination.
5, according to the concentration equipment of technical scheme 4, described permanent magnet and ferromagnetic Length Ratio are 1:1 to 1:100, preferred 1:5 to 1:20.Permanent magnet and ferromagnet can have respectively the length of any appropriate, as long as the first magnetic pole of gained magnet and the distance between the second magnetic pole are enough to avoid magnet side and the second magnetic pole absorption magnetic-particle when the first magnetic pole absorption magnetic-particle.In some cases, described permanent magnet is cylindrical small magnet (permanent magnet), diameter 1.5cm, and high 0.8cm, (cover is outer) measures magnetic field intensity is (900 ± 100) * 10
3/ 4 π (A/m).In some cases, described ferromagnet is the iron pipe with handle, the long 10cm of iron pipe, iron pipe external diameter 1.3cm, the thick 0.2cm of iron pipe.The long 8.5cm of handle, wide 1.4cm.Handle and iron pipe weld together.
6, according to each concentration equipment among the technical scheme 4-5, wherein said permanent magnet and described ferromagnetic junction have essentially identical cross section profile, can avoid like this forming in the junction zone of magnetic enhancement, so that magnetic-particle only is adsorbed on the first magnetic pole place.In some cases, the magnet that is connected to form by permanent magnet and ferromagnet is preferably the consistent cylindrical magnet of cross section.In some cases, described ferromagnet has hollow structure with weight reduction.
7, according to each concentration equipment among the technical scheme 4-6, wherein said ferromagnet is soft magnetic bodies or hard magnetic body.
Permanent magnet of the present invention or hard magnetic body are to have wide hysteresis curve, high-coercive force, high remanent magnetism, once magnetizing the material that can keep constant magnetic, are called permanent-magnet material, claim again hard magnetic material.Permanent-magnet material commonly used comprises that Al-Ni-Co series permanent-magnet alloy, siderochrome cobalt are permanent-magnet alloy, permanent-magnet ferrite, rare earth permanent-magnetic material and composite permanent-magnetic material.For example, carbon steel, wolfram steel, chromium steel, cobalt steels, barium ferrite, strontium ferrite, NdFeB material etc.Described permanent magnet can be column or flaky permanent magnet.
Soft magnetic bodies of the present invention can be the soft magnetic bodies of any appropriate, and for example can be selected from pure iron, mild steel, iron Si system alloy, iron aluminum series alloy, iron sial is that alloy, ferronickel are alloy, iron Co-based alloy, soft magnetic ferrite, amorphous soft magnetic alloy, super-microcrystalline soft magnetic alloy.
8, according to each concentration equipment among the technical scheme 4-7, wherein said non magnetic overcoat forms the magnetic-particle attachment surface being positioned at described the first magnetic pole place.In some embodiments, described non magnetic overcoat covers at least described the first magnetic pole and forms the magnetic-particle attachment surface in the end of described the first magnetic pole, is beneficial to when detaching the first magnetic pole magnetic-particle is trapped in second container.Preferred described attachment surface can the magnetic line of force of strong part be substantially vertical with the first magnetic pole magnetic.More preferably described attachment surface is plane or to the concave surface of the first magnetic pole depression.In some cases, described attachment surface is slightly larger than the end face of the first magnetic pole.In some cases, the end face around the first magnetic pole outwards forms flange on the described attachment surface.In some embodiments, can also form outward extending annular edge in the side of close the first magnetic pole one end of described non magnetic overcoat if need.
9, according to each concentration equipment among the technical scheme 1-8, wherein said non magnetic overcoat is nonmagnetic glass overcoat, copper overcoat or plastic wrapper.Described non magnetic overcoat can be made by the material of any appropriate, as long as do not hinder the magnet absorption magnetic-particle.
10, according to each concentration equipment among the technical scheme 1-9, the profile of wherein said non magnetic overcoat and described magnet is complementary.In some cases, the in-profile of described non magnetic overcoat can be identical with the exterior contour of described magnet, and for example described non magnetic overcoat can be close to described magnet, as long as described magnet can enter and detach described non magnetic overcoat.In other cases, the in-profile of described non magnetic overcoat can be different from the exterior contour of described magnet.In some cases, the in-profile of described non magnetic overcoat and exterior contour can be identical or different.In some cases, the in-profile of described non magnetic overcoat and coupling identical with the exterior contour of described magnet, and the exterior contour of described non magnetic overcoat is different from its in-profile.For example, for cylindrical magnet, the in-profile of described non magnetic overcoat can be the drum that mates with the cylindrical magnet exterior contour, and the exterior contour of described non magnetic overcoat can be back taper, when extracting magnet out from non magnetic overcoat, this can prevent further that magnetic-particle is along moving on the side of non magnetic overcoat.Described non magnetic overcoat can have the profile of any appropriate, as long as can enter the first container and second container with absorption and discharge magnetic-particle.In some cases, described non magnetic overcoat is flat glass tube, high 9.5cm, internal diameter 1.7cm, external diameter 1.9cm.
In some embodiments, described the first container and second container can be the flat small beakers of 50mL, beaker bore 4.8cm, the high 5.8cm of beaker, bottom external diameter 4.0cm, internal diameter 3.6cm.
11, a kind of magnetic selection method may further comprise the steps:
(1) provides according to each concentration equipment among the technical scheme 1-10;
(2) the mixture suspension of magnetic-particle and non-magnetic particle is placed the first container of described concentration equipment;
(3) the first magnetic pole with the magnet in the non magnetic overcoat of being in of described concentration equipment immerses described suspension magnetic-particle is adsorbed on described non magnetic overcoat corresponding to the outer surface at described the first position of magnetic pole place;
(4) in the constant situation of the relative position that keeps described non magnetic overcoat and described magnet with its second container that proposes described suspension and place described concentration equipment;
(5) described magnet being extracted out the described non magnetic outer magnetic-particle that is embedded with absorption is released in the described second container.
12, according to the magnetic methods of technical scheme 11, wherein step (5) also comprises: the outer surface that washes described non magnetic overcoat all places described second container with the magnetic-particle with absorption.
13, according to the magnetic methods of technical scheme 11 or 12, also comprise: repeating step (3)-(5) are with magnetic-particle and the non-magnetic particle of further separating step (2).
Concentration equipment of the present invention can carry out magnetic separation to the magnetic separation particle quickly and easily, effectively avoids the magnet accident to take magnetic-particle out of and the loss of the magnetic-particle that causes.Use the Armco magnetic iron content assaying method of concentration equipment of the present invention, can avoid magnetic-particle to be taken away by magnet and the analytical error that causes, have higher preci-sion and accuracy.
Description of drawings
Fig. 1 is the structural representation of a kind of concentration equipment of the prior art, and Fig. 1-the 1st wherein, the schematic diagram during this concentration equipment absorption magnetic-particle, Fig. 1-2 are the schematic diagram of this concentration equipment when discharging magnetic-particle.
Fig. 2 is the structural representation according to the concentration equipment of one embodiment of the present invention, Fig. 2-the 1st wherein, the schematic diagram during this concentration equipment absorption magnetic-particle, Fig. 2-the 2nd, the schematic diagram when this concentration equipment discharges magnetic-particle.
The specific embodiment
Below in conjunction with accompanying drawing some embodiments of the present invention are further introduced, but be not intended to limit protection scope of the present invention.
Comparative Examples 1: the concentration equipment of prior art
Fig. 1 is the structural representation of a kind of concentration equipment of the prior art, and Fig. 1-the 1st wherein, the schematic diagram during this concentration equipment absorption magnetic-particle, Fig. 1-2 are the schematic diagram of this concentration equipment when discharging magnetic-particle.
Prior art concentration equipment as Figure 1-1 comprises permanent magnet (4), be enclosed within actively the nonmagnetic glass overcoat (7) on the permanent magnet (4), and the first container (9) that is used for the mixture suspension (5) of splendid attire magnetic-particle and non-magnetic particle.Permanent magnet (4) has the first magnetic pole (2) and the second magnetic pole (1).Connecting rod (8) is made of non-magnetic material, and the one end connects permanent magnet (4), and the other end has shank.When cover has the permanent magnet (4) of glass overcoat (7) to place described mixture suspension (5) absorption magnetic-particle, the first magnetic pole (2) and the second magnetic pole (1) all are positioned at below the liquid level of described mixture suspension (5), and the magnetic-particle in the mixture suspension (5) is adsorbed on corresponding to the bottom (3) of the glass overcoat (7) of the first magnetic pole (2) and locates and locate corresponding to the sidewall (6) of the glass overcoat (7) of the second magnetic pole (1).
Behind the absorption magnetic-particle, under the constant condition of the relative position that keeps permanent magnet (4) and glass overcoat (7), it is moved into the second container (10) for the magnetic-particle suspension (5 ') of splendid attire magnetic separation.The shank of connecting rod (8) is applied pulling force permanent magnet (4) is moved up in glass overcoat (7), until permanent magnet (4) leaves magnetic-particle suspension (5 '), thereby discharge the magnetic-particle that bottom (3) is located.
When permanent magnet (4) when moving up, accumulate in part magnetic-particle that sidewall (6) locates and can under the attraction of the second magnetic pole (1), move up and keep being adsorbed on sidewall (6 ') and locate.When shifting out permanent magnet (4) and glass overcoat (7) from second container (10), the magnetic-particle that sidewall (6 ') is located also may shift out second container (10) and lose.Like this, as use this concentration equipment to carry out Armco magnetic iron when measuring, the preci-sion and accuracy of acquired results is relatively poor.
Embodiment 1: concentration equipment of the present invention
Fig. 2 is the structural representation according to the concentration equipment of one embodiment of the present invention, Fig. 2-the 1st wherein, the schematic diagram during this concentration equipment absorption magnetic-particle, Fig. 2-the 2nd, the schematic diagram when this concentration equipment discharges magnetic-particle.
Concentration equipment of the present invention shown in Fig. 2-1 comprises combination magnet (connecting to form by magnetic force by permanent magnet (4) with the substantially isometrical ferromagnet (8) of permanent magnet (4)), be enclosed within actively the nonmagnetic glass overcoat (7) on the combination magnet, and the first container (9) that is used for the mixture suspension (5) of splendid attire magnetic-particle and non-magnetic particle.A magnetic pole of permanent magnet (4) is connected with an end magnetic of ferromagnet (8), another magnetic pole of permanent magnet (4) is as first magnetic pole (2) of combination magnet, and the other end of ferromagnet (8) is as second magnetic pole (1) of combination magnet and be provided with shank.When cover has the combination magnet of glass overcoat (7) to place described mixture suspension (5) absorption magnetic-particle, the first magnetic pole (2) is positioned at below the liquid level of mixture suspension (5), and the second magnetic pole (1) is positioned at more than the liquid level of mixture suspension (5).Therefore, the magnetic-particle in the mixture suspension (5) only is adsorbed on corresponding to the bottom (3) of the glass overcoat (7) of the first magnetic pole (2) and locates, and the whole sidewall of the second magnetic pole (1) and glass overcoat (7) does not all adsorb magnetic-particle.
Behind the absorption magnetic-particle, under the constant condition of the relative position that keeps combination magnet and glass overcoat (7), it is moved into the second container (10) of the magnetic-particle suspension (5 ') that is used for the splendid attire magnetic separation.The shank of ferromagnet (8) is applied pulling force combination magnet is moved up in glass overcoat (7), until combination magnet leaves magnetic-particle suspension (5 '), thereby discharge the magnetic-particle that bottom (3) is located.Because the whole sidewall of the second magnetic pole (1) and glass overcoat (7) does not all adsorb magnetic-particle, when shifting out combination magnet and glass overcoat (7) from second container (10), just can not cause the loss of magnetic-particle.Like this, as use this concentration equipment to carry out Armco magnetic iron when measuring, the preci-sion and accuracy of acquired results is better.
Experimental example 1: concentration equipment of the present invention and the Armco magnetic iron assay method that uses this device
One, experimental section
1, concentration equipment
Use concentration equipment as shown in Figure 2, wherein permanent magnet (4) is the short cylindrical permanent magnet, diameter 1.5cm, and high 0.8cm, (cover is outer) measures magnetic field intensity is (900 ± 100) * 10
3/ 4 π (A/m); Ferromagnet (8) is the iron pipe with handle, the long 10cm of iron pipe, iron pipe external diameter 1.3cm, the thick 0.2cm of iron pipe, the long 8.5cm of handle, wide 1.4cm; Glass overcoat (7) is flat glass tube, high 9.5cm, internal diameter 1.7cm, external diameter 1.9cm; The first container and second container are the flat small beakers of 50mL, beaker bore 4.8cm, the high 5.8cm of beaker, bottom external diameter 4.0cm, internal diameter 3.6cm.
2, experiment reagent
Stannous chloride solution: (100g/L) (1+1) HCL solution.
Mercury bichloride solution: (50g/L).
Sulphur-phosphorus mixed acid (volume ratio): H
2SO
4: H
3PO
4: H
2O=15:15:70.
Diphenylamine sulfonic acid sodium salt 1g/L: take by weighing the 1g diphenylamine sulfonic acid sodium salt and be dissolved in the 950mL water, then add 50mLH
2SO
4
Potassium bichromate standard liquid: this solution T(mgFe/K
2Cr
2O
7)=2.00mg/mL.
3, experimental technique:
3.1 magnetic separation:
Take by weighing 0.2000～0.3000g sample and place the flat small beaker of 50mL (9), add 20mL water-soaked sample and form suspension, outer casing glass tube (7) and the short cylindrical permanent magnet (4) that is connected with iron pipe (8) magnetic are pressed close to sample suspension carry out magnetic separation, the magnet (4) that holds the part magnetic-particle is moved into another 50mL small beaker (10) together with glass tube (7), extract iron pipe (8) and magnet (4) out magnetic-particle is discharged, and water is flushed in the small beaker (10).Repeat above-mentioned magnetic separation step until do not have till the Armco magnetic iron in the sample.The Armco magnetic iron part that obtains is carried out above-mentioned magnetic separation again, and to remove the non magnetic ore of carrying secretly, what obtain is exactly the Armco magnetic iron mineral.
3.2 titration:
The magnetic separation mineral that obtain are changed in the 250mL conical flask, the 250mL conical flask is placed be concentrated to small size on the electric hot plate, add the 20mL concentrated hydrochloric acid, low-temperature heat is boiled, dissolve complete, and volume is concentrated into about 10mL, drip SnCL
2Reduction is taken off to the greatest extent to yellow, and 2-3 drips after amount, water purge bottle wall, and the flowing water cooling adds 10mLHgCl
2Solution is placed 3-5min, is diluted with water to about 100mL, drip 2-3 and drip the diphenylamine sulfonic acid sodium salt indicator, add the 15mL mixture of sulfuric phosphoric acid, being titrated to the stable purple of firm appearance with the potassium bichromate standard liquid is terminal point, the milliliter number V of the potassium bichromate standard liquid that record consumes
1, do blank test in company with sample, record titration volume V
0
3.3 calculate:
In the formula: T represents the potassium bichromate standard liquid to ferromagnetic titer (mg/mL); V
1Represent the volume (mL) that the titration sample consumes the potassium bichromate standard liquid; V
0Represent the blank volume (mL) that consumes the potassium bichromate standard liquid of titration; M represents sample weighting amount (g).
4, result and discussion.
To country-level standard substance GBW07272, GBW07275 measures as stated above, and measurement result sees Table 1.
Table 1: the veracity and precision test of method
By using country-level standard substance GBW07272, GBW07275 tests, the result shows, uses herein that described concentration equipment carries out magnetic separation to Armco magnetic iron in the iron ore sample of laboratory, can satisfy ferromagnetic magnetic separation in the iron ore sample fully and measure the needs of Armco magnetic iron content.
Below the mode of explanation has been described the present invention by way of example.But, should be appreciated that the present invention never only only limits to these specific embodiment.Those of ordinary skill can carry out various modifications or change to the present invention, and these modifications and change all belong to protection scope of the present invention.
Claims (10)
1. concentration equipment, comprise the magnet with the first magnetic pole and second magnetic pole, be enclosed within actively the non magnetic overcoat on described the first magnetic pole, and the first container that is used for the mixture suspension of splendid attire magnetic-particle and non-magnetic particle, wherein when cover had described first magnetic pole of described non magnetic overcoat to place described mixture suspension absorption magnetic-particle, described the second magnetic pole was positioned at the liquid level top of described mixture suspension.
2. according to claim 1 concentration equipment, the distance between wherein said the second magnetic pole and the described mixture suspension liquid level is at least 1.2 times of the described suspension degree of depth.
3. each concentration equipment according to claim 1-2, wherein said magnet comprises permanent magnet and ferromagnet, a magnetic pole of described permanent magnet is connected with a described ferromagnetic end magnetic, another magnetic pole of described permanent magnet is as described the first magnetic pole, and the described ferromagnetic other end is as described the second magnetic pole.
4. according to claim 3 concentration equipment, wherein said permanent magnet and described ferromagnetic junction have essentially identical cross section profile.
5. according to claim 3 concentration equipment, wherein said ferromagnet is soft magnetic bodies or hard magnetic body.
6. according to claim 1 concentration equipment, wherein said non magnetic overcoat form the magnetic-particle attachment surface being positioned at described the first magnetic pole place.
7. according to claim 1 concentration equipment, the profile of wherein said non magnetic overcoat and described magnet is complementary.
8. according to claim 1 concentration equipment, also comprise the second container for the magnetic-particle suspension of splendid attire magnetic separation, wherein when cover had described first magnetic pole of described non magnetic overcoat to place described magnetic-particle suspension to discharge magnetic-particle, described the second magnetic pole was positioned at the liquid level top of described magnetic-particle suspension.
9. magnetic selection method may further comprise the steps:
(1) each concentration equipment is provided according to claim 1 in-10;
(2) the mixture suspension of magnetic-particle and non-magnetic particle is placed the first container of described concentration equipment;
(3) the first magnetic pole with the magnet in the non magnetic overcoat of being in of described concentration equipment immerses described suspension magnetic-particle is adsorbed on described non magnetic overcoat corresponding to the outer surface at described the first position of magnetic pole place;
(4) in the constant situation of the relative position that keeps described non magnetic overcoat and described magnet with its second container that proposes described suspension and place described concentration equipment;
(5) described magnet being extracted out the described non magnetic outer magnetic-particle that is embedded with absorption is released in the described second container.
10. according to claim 9 magnetic methods, wherein step (5) also comprises: the outer surface that washes described non magnetic overcoat all places described second container with magnetic-particle that will absorption.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106345609A (en) * | 2016-09-20 | 2017-01-25 | 荆门市格林美新材料有限公司 | Apparatus for removing magnetic foreign matters |
| CN107209194A (en) * | 2015-01-13 | 2017-09-26 | 吉尔森公司 | Adapter for sliding magnetic particle separation |
| CN109663665A (en) * | 2019-01-14 | 2019-04-23 | 山东省物化探勘查院 | Spiral laboratory Armco magnetic iron automatic electric magnetic separation instrument and magnetic selection method |
| CN109731682A (en) * | 2019-01-17 | 2019-05-10 | 安徽建筑大学 | A method for separating ferromagnetic materials by using an electromagnetic separation device |
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| US5541072A (en) * | 1994-04-18 | 1996-07-30 | Immunivest Corporation | Method for magnetic separation featuring magnetic particles in a multi-phase system |
| CN2715845Y (en) * | 2004-03-22 | 2005-08-10 | 戴丽达 | Pipeline type automatic iron remover with permanent magnet |
| CN100534627C (en) * | 2007-09-16 | 2009-09-02 | 李京鹏 | Wet-type permanent magnet drum type high-purity iron powder extractor |
| CN201935850U (en) * | 2011-03-18 | 2011-08-17 | 樊爱东 | Intelligent magnetic separation tube |
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| US5238547A (en) * | 1988-12-23 | 1993-08-24 | Hitachi, Ltd. | Gas-liquid separation device for electroconductive gas-liquid two phase flow |
| US5541072A (en) * | 1994-04-18 | 1996-07-30 | Immunivest Corporation | Method for magnetic separation featuring magnetic particles in a multi-phase system |
| CN2715845Y (en) * | 2004-03-22 | 2005-08-10 | 戴丽达 | Pipeline type automatic iron remover with permanent magnet |
| CN100534627C (en) * | 2007-09-16 | 2009-09-02 | 李京鹏 | Wet-type permanent magnet drum type high-purity iron powder extractor |
| CN201935850U (en) * | 2011-03-18 | 2011-08-17 | 樊爱东 | Intelligent magnetic separation tube |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107209194A (en) * | 2015-01-13 | 2017-09-26 | 吉尔森公司 | Adapter for sliding magnetic particle separation |
| CN107209194B (en) * | 2015-01-13 | 2020-05-12 | 吉尔森公司 | Adapter for sliding magnetic particle separation |
| CN106345609A (en) * | 2016-09-20 | 2017-01-25 | 荆门市格林美新材料有限公司 | Apparatus for removing magnetic foreign matters |
| CN106345609B (en) * | 2016-09-20 | 2017-08-11 | 荆门市格林美新材料有限公司 | Except the device of magnetic foreign body |
| CN109663665A (en) * | 2019-01-14 | 2019-04-23 | 山东省物化探勘查院 | Spiral laboratory Armco magnetic iron automatic electric magnetic separation instrument and magnetic selection method |
| CN109731682A (en) * | 2019-01-17 | 2019-05-10 | 安徽建筑大学 | A method for separating ferromagnetic materials by using an electromagnetic separation device |
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| CN103071590B (en) | 2015-08-05 |
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