CN102886302B - Variable magnetic field classification magnetic separator - Google Patents
Variable magnetic field classification magnetic separator Download PDFInfo
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- CN102886302B CN102886302B CN201210355656.6A CN201210355656A CN102886302B CN 102886302 B CN102886302 B CN 102886302B CN 201210355656 A CN201210355656 A CN 201210355656A CN 102886302 B CN102886302 B CN 102886302B
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- yoke axle
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Abstract
The invention discloses a kind of Variable magnetic field classification magnetic separator, the purification by mineral being applicable to wet type powdered mineral material uses.Technical problem to be solved by this invention is to provide and a kind ofly can improves active ingredient grade in magnetisable material and other in magnetisable material be carried out the Variable magnetic field classification magnetic separator that is effectively separated without magnetic component, it comprises the shell of band charging aperture and discharging opening, in shell, be provided with the band yoke axle of magnetic patch and the magnetic roller of turnbarrel, described charging aperture is arranged on the front end of shell; The magnetic patch that yoke axle is installed is distributed on the periphery of yoke axle, and the magnetic field intensity of turnbarrel outer surface reduces in the axial direction from front end to rear end, to be provided with from front end axial advance device to the back-end at turnbarrel outer surface; Described discharging opening is arranged on the bottom of shell, and is arranged with at least 2 in the axial direction.Use magnetic separator of the present invention, the material of magnetic induction coefficient different in selected mineral can be separated, improve effect and the economic benefit of magnetic separation.
Description
Technical field
The present invention relates to for the magnetic separator in ore dressing, the magnetic separator that the purification by mineral being especially applicable to wet type powdered mineral material uses.
Background technology
Magnetic separator is applicable to the wet magnetic separation of the material such as magnetic iron ore, magnetic iron ore, roasted ore, ilmenite of below granularity 3mm, also for the deironing operation of the materials such as coal, nonmetallic ore, building materials.The magnetic system of magnetic separator, adopt high-quality Ferrite Material or be composited with rare earth magnetic steel, cylinder table average magnetic induction intensity is 60 ~ 600mT.According to user's needs, the magnetic separation that the multiple difference such as following current, half adverse current, adverse current type table is strong can be provided.This equipment has that structure is simple, treating capacity is large, easy to operate, be easy to the advantages such as maintenance.
Current magnetic separator generally adopts wet magnetic separation, as depicted in figs. 1 and 2, ore deposit liquid containing breeze to be selected is injected into hopper 4 from charging aperture 6, turnbarrel 2 rotates around fixing yoke axle 1, bottom due to yoke axle 1 is provided with several groups of magnetic patch 3, the magnetic field formed by turnbarrel 2 surface is by the magnetic components absorption in the liquid of ore deposit, in turnbarrel 2 rotates, after being left magnetic patch 3 by the magnetic components adsorbed, when turnbarrel 2 Surface field weakens or disappears, magnetic components departs from turnbarrel 2 discharging opening 5 from the side and discharges, and arrives the object of magnetic separation.But this magnetic separator causes following shortcoming due to its reasons in structure.
1, the magnetic patch owing to installing on yoke axle is only arranged on one section of bottom, therefore in magnetic separation process, turnbarrel rotates a circle, effective absorption working time of magnetic material is short, upset number of times on left magnetic roller is few, disk pack wraps up in phenomenon and non-magnetic parcel phenomenon is serious, is difficult to the Expected Results reaching magnetic separation.
2, because the magnetic field intensity being arranged on the magnetic patch on yoke axle is identical, therefore for containing different magnetic material, the mineral of comparison of ingredients complexity due to selected material magnetic induction coefficient different so magnetic separation effect is poor.
Due to above-mentioned shortcoming, in the Panzhihua Region of China, in the magnetic separation process of its vanadium titano-magnetite, due to the TiO contained
2grade higher, adopt existing magnetic separator, the Iron grade in final finished generally can only reach about 54%, and content of titanium dioxide is higher than more than 12%.And in smelting process, if the low coke ratio that will cause of Iron grade rises, the capacity factor of a blast furnace declines, and work as TiO
2when grade is more than 8 ~ 9%, blast furnace cannot adopt common normal smelting, must allocate common iron ore concentrate into and just can smelt to fall titanium, so all improve Fe content at a kind of applicable technology and equipment of searching at present in magnetic separation process, reduces Ti content.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly can improves active ingredient grade in magnetisable material and other in magnetisable material be carried out the Variable magnetic field classification magnetic separator that is effectively separated without magnetic component.
The present invention solves the Variable magnetic field classification magnetic separator that its technical problem adopts, and comprises the shell of band charging aperture and discharging opening, and in shell, be provided with the band yoke axle of magnetic patch and the magnetic roller of turnbarrel, described charging aperture is arranged on the front end of shell; The magnetic patch that yoke axle is installed is distributed on the periphery of yoke axle, and the magnetic field intensity of turnbarrel outer surface reduces in the axial direction from front end to rear end, to be provided with from front end axial advance device to the back-end at turnbarrel outer surface; Described discharging opening is arranged on the bottom of shell, and is arranged with at least 2 in the axial direction.
Further improvement, the magnetic field intensity of the magnetic patch that described yoke axle is installed reduces gradually in the axial direction from front end to rear end.
The magnetic field intensity of the magnetic patch that described yoke axle is installed is identical, and the diameter of described turnbarrel strengthens gradually in the axial direction from front end to rear end.
The quantity of described discharging opening is 4 ~ 8, and the magnetic field intensity of the yoke axle that each discharging opening is corresponding is unequal.
Be provided with radial to power apparatus outside turnbarrel outer surface.
Described radial direction is hydraulic nozzle to power apparatus.
Use magnetic separator of the present invention, owing to have employed the technology of magnetic roller change of magnetic field strength, for different magnetic material, be separated from turnbarrel in different magnetic field intensity positions, thus the material of magnetic induction coefficient different in selected mineral can be separated, improve the effect of magnetic separation and the grade of final products, and other magnetisable material in selected mineral can be reclaimed and be utilized by magnetic separation, increase resource utilization and economic benefit.
Use magnetic separator of the present invention can replace traditional magnetic separator of the overwhelming majority at present, its separating effect is more remarkable.From experiment, after magnetic separation, sefstromite concentrate grade can improve 5 ~ 10% than traditional magnetic separation, makes Iron grade reach more than 60%, and the titanium grade in sefstromite concentrate can reduce about 4 ~ 7%, and the titanium dioxide in sefstromite concentrate is down to less than 8 ~ 9%.Iron grade often improves 1%, and coke ratio reduces by 1 ~ 1.5%, and the capacity factor of a blast furnace will rise 1.5%, because the titanium dioxide quantity in sefstromite concentrate reduces, thus can realize effective separation of slag iron in smelting process, reduce costs.
Accompanying drawing explanation
Fig. 1 is existing magnetic separator structural representation;
Fig. 2 is that schematic diagram is arranged in the cross section of existing Variable magnetic field classification magnetic separator;
Fig. 3 is the first example structure schematic diagram of the present invention;
Fig. 4 is the structural representation of the second embodiment of the present invention;
Fig. 5 is the installation schematic cross-section of yoke axle and turnbarrel in above-described embodiment.
Reference numeral: 1-yoke axle, 2-turnbarrel, 3-magnetic patch, 4-hopper, 5-discharging opening, 6-charging aperture, 7-helicla flute, 11-radial direction gives power apparatus, 14-shell.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Variable magnetic field classification magnetic separator of the present invention, comprises the shell of band charging aperture and discharging opening, and be provided with the band yoke axle of magnetic patch and the magnetic roller of turnbarrel in the enclosure, charging aperture 6 is arranged on the front end of shell 14.The magnetic patch 3 that yoke axle 1 is installed is distributed on the periphery of yoke axle 1, and the magnetic field intensity of turnbarrel 2 outer surface reduces in the axial direction from front end to rear end, to be provided with from front end axial advance device to the back-end at turnbarrel 2 outer surface.Discharging opening 5 is arranged on the side lower part of shell 14, and is arranged with at least 2 in the axial direction.The magnetic patch 3 that yoke axle 1 is installed is distributed on the periphery of yoke axle, until the ore deposit liquid containing optional material after charging aperture 6 charging, by influence of magnetic field on yoke axle 1, material containing magnetic material is attracted to turnbarrel outer surface, and advance along with the axial advance device on turnbarrel 2 rotates, different magnetic materials departs from turnbarrel outer surface in turnbarrel outer surface different magnetic field intensity section and falls into different discharging openings 5.And be not left in the liquid of ore deposit containing magnetic material or the very little material of magnetic material content, finally discharge with ore deposit liquid, thus realize effective magnetic separation.Be 300 ~ 800mT in the front end magnetic field intensity of turnbarrel 2 outer surface, different according to the magnetic material in the liquid of ore deposit, even can also be higher, rear end magnetic field intensity is 50 ~ 60mT.Be 600 ~ 700mT for general vanadium titano-magnetite in the front end magnetic field intensity of turnbarrel outer surface.Mineral are in the front position of turnbarrel 2, the magnetic material component of tool is not as dust, sulfide, phosphorus etc. can not be adsorbed, just can realize being separated, and for the general material of magnetic induction intensity, as ilmenite, ilmenite concentrate departs from turnbarrel 2 surface in the position of magnetic field intensity 450 ~ 500mT realizes being separated, and for the high material of magnetic induction intensity, as iron could be separated with the surface of turnbarrel 2 in the rear end of turnbarrel 2, like this by multiple discharging openings 5 of the position setting of each magnetic induction intensity corresponding to magnetic separator bottom, just different materials can be collected respectively, arrive the object of sorting.Discharging opening 5 is arranged on the bottom of shell 14, and is arranged with at least 2 in the axial direction, and according to different material components, the quantity of discharging opening 5 is set to 4 ~ 8 best results.The magnetic field intensity of the yoke axle 1 of each discharging opening 5 correspondence is unequal, the material of different magnetic from corresponding position depart from turnbarrel 2 fall into below relative discharging opening, the categorised collection to different material just can be realized by each discharging opening, the effect that more existing magnetic separator can only do a kind of sorting has had great improvement, and the sorting being particularly suitable for the vanadium titano-magnetite of Panzhihua Region uses.
As shown in Figure 3, several magnetic patch 3 that yoke axle 1 is installed, magnetic patch 3 can be permanent magnet also can be electromagnet, and ensure that the magnetic field intensity of each magnetic patch 3 in the axial direction from front end to rear end reduces gradually, yoke axle 1 surface to turnbarrel 2 surface between distance be identical at axis, so in the magnetic field intensity also respective change and ensure that magnetic field intensity reduces gradually in the axial direction from front end to rear end of the surface of turnbarrel 2 formation.Can also as accompanying drawing 4, the magnetic field intensity of the magnetic patch 3 that yoke axle 1 is installed is identical, permanent magnet can be selected as magnetic patch, also can adopt electromagnet, ensures that the magnetic field intensity of yoke axle 1 periphery is constant simultaneously.The diameter of turnbarrel 2 is strengthened gradually in the axial direction from front end to rear end, like this due to yoke axle 1 surface to turnbarrel 2 surface between distance increase gradually, so the magnetic field intensity formed on the surface of turnbarrel 2 also respective change and ensure that magnetic field intensity reduces gradually in the axial direction from front end to rear end, and permanent magnet is simpler than the installation of electromagnet in the embodiment of accompanying drawing 4, particularly being applicable to the installation of permanent magnet, is therefore best embodiment.
The surface of turnbarrel 2 is provided with axis propulsion plant, is also provided with radial to power apparatus 11 simultaneously.Due to the present invention's employing is that ore deposit liquid carries out magnetic separation, therefore having radial is hydraulic nozzle to power apparatus 11, the hydraulic pressure sprayed by nozzle carries out pressure washing to the magnetic material being adsorbed on turnbarrel outer surface, the nonmagnetic substance that wherein disk pack is wrapped up in can be removed, and improves magnetic separation effect.
Adopt magnetic roll structure of the present invention, by showing the vanadium titanium ilmenite concentrate of Panzhihua Region and common iron ore concentrate magnetic separation experiment, sefstromite concentrate finished product grade can be increased to about 60%, common iron ore concentrate finished product grade brings up to about 70%, content of titanium dioxide in sefstromite concentrate is down to below 8-9%, can also reclaim the titanium dioxide in sefstromite concentrate, experiment proves that sefstromite concentrate per ton can reclaim the titanium dioxide of about 100 kilograms simultaneously.The magnetic separation that magnetic roller of the present invention is also applicable to the magnetisable material produced in the metal recovery of the magnetisable material containing Multiple components, chemical process is separated, as troilite produces the sulfate slag produced in sulfuric acid process.
Claims (6)
1. Variable magnetic field classification magnetic separator, comprises the shell of band charging aperture and discharging opening, and in shell, be provided with the band yoke axle of magnetic patch and the magnetic roller of turnbarrel, it is characterized in that, described charging aperture (6) is arranged on the front end of shell (14); The periphery of yoke axle (1) is distributed at the upper magnetic patch (3) installed of yoke axle (1), and the magnetic field intensity of turnbarrel (2) outer surface reduces in the axial direction from front end to rear end, to be provided with from front end axial advance device to the back-end at turnbarrel (2) outer surface; Described discharging opening (5) is arranged with at least 2 in the axial direction.
2. Variable magnetic field classification magnetic separator as claimed in claim 1, is characterized in that, the magnetic field intensity of the upper magnetic patch (3) installed of described yoke axle (1) reduces gradually in the axial direction from front end to rear end.
3. Variable magnetic field classification magnetic separator as claimed in claim 1, is characterized in that, the magnetic field intensity of the upper magnetic patch (3) installed of described yoke axle (1) is identical, and the diameter of described turnbarrel (2) strengthens gradually in the axial direction from front end to rear end.
4. Variable magnetic field classification magnetic separator as claimed in claim 1, it is characterized in that, the quantity of described discharging opening (5) is 4 ~ 8, and the magnetic field intensity of the yoke axle (1) that each discharging opening (5) is corresponding is unequal.
5. the Variable magnetic field classification magnetic separator as described in claim 1 or 4, is characterized in that, is provided with radial to power apparatus (11) outside turnbarrel (2) outer surface.
6. Variable magnetic field classification magnetic separator as claimed in claim 5, it is characterized in that, described radial direction is hydraulic nozzle to power apparatus (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355656.6A CN102886302B (en) | 2012-09-21 | 2012-09-21 | Variable magnetic field classification magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355656.6A CN102886302B (en) | 2012-09-21 | 2012-09-21 | Variable magnetic field classification magnetic separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102886302A CN102886302A (en) | 2013-01-23 |
| CN102886302B true CN102886302B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210355656.6A Expired - Fee Related CN102886302B (en) | 2012-09-21 | 2012-09-21 | Variable magnetic field classification magnetic separator |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830367A (en) * | 1972-06-26 | 1974-08-20 | W Stone | High intensity wet magnetic separators |
| CN101402069A (en) * | 2008-10-23 | 2009-04-08 | 河南理工大学 | Split type multi-roller multi-component high-gradient vibration magnetic separator in permanent magnetism |
| CN101648160A (en) * | 2008-08-13 | 2010-02-17 | 抚顺思瑞机电设备有限公司 | Dry flyash recoverer |
-
2012
- 2012-09-21 CN CN201210355656.6A patent/CN102886302B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830367A (en) * | 1972-06-26 | 1974-08-20 | W Stone | High intensity wet magnetic separators |
| CN101648160A (en) * | 2008-08-13 | 2010-02-17 | 抚顺思瑞机电设备有限公司 | Dry flyash recoverer |
| CN101402069A (en) * | 2008-10-23 | 2009-04-08 | 河南理工大学 | Split type multi-roller multi-component high-gradient vibration magnetic separator in permanent magnetism |
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| Publication number | Publication date |
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| CN102886302A (en) | 2013-01-23 |
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