CN202778708U - Magnetic separator magnetic roller - Google Patents
Magnetic separator magnetic roller Download PDFInfo
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- CN202778708U CN202778708U CN 201220486922 CN201220486922U CN202778708U CN 202778708 U CN202778708 U CN 202778708U CN 201220486922 CN201220486922 CN 201220486922 CN 201220486922 U CN201220486922 U CN 201220486922U CN 202778708 U CN202778708 U CN 202778708U
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- turnbarrel
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Abstract
The utility model discloses a magnetic separator magnetic roller used for mineral separation. The magnetic separator magnetic roller is particularly suitable for a magnetic separator used for screening and reusing a variety of powdery particles with different magnetic components. The utility model provides the magnetic separator magnetic roller capable of improving grades of effective magnetic materials in magnetic materials and separating other components in the magnetic materials effectively. The magnetic separator magnetic roller comprises a magnetic shaft provided with a magnetic piece and a rotary sleeve. The magnetic field strength on the outer surface of the rotary sleeve is reduced gradually from the front end to the rear end along an axis direction. The outer surface of rotary sleeve is provided with an axial propelling device propelling from the front end to the rear end. A magnetic separator adopts the magnetic separator magnetic roller is capable of separating materials with the different magnetic strength from the rotary sleeve in different magnetic strength positions, and therefore magnetic separation effect and the grade of a final product is improved, other magnetism in selected minerals by magnetic separation can be recycled and reused and resource utilization rate and economic benefit are increased.
Description
Technical field
The utility model relates to the magnetic roll structure for the magnetic separator of ore dressing, especially is applicable to the screening of the powdery plastochondria that contains multiple different magnetic components and the magnetic separator of recycling are used.
Background technology
Magnetic separator is applicable to the wet magnetic separation of the materials such as the following magnetic iron ore of granularity 3mm, magnetic iron ore, roasted ore, ilmenite, also is used for the deironing operation of the materials such as coal, nonmetallic ore, building materials.The magnetic of magnetic separator system adopts the high-quality Ferrite Material or is composited with rare earth magnetic steel, and a cylinder table average magnetic induction intensity is 100～600mT.According to user's needs, can provide the multiple different tables such as following current, half adverse current, adverse current type strong magnetic separation.That this equipment has is simple in structure, treating capacity is large, easy to operate, be easy to the advantages such as maintenance.
Present magnetic separator generally adopts wet magnetic separation, as depicted in figs. 1 and 2, the ore deposit liquid that will contain breeze to be selected is injected in the hopper 4 by charging aperture, turnbarrel 2 is around 1 rotation of fixing magnetic axis, because the bottom of magnetic axis 1 is equipped with several groups of magnetic patch 3, by the magnetic field that turnbarrel 2 surfaces form the magnetic components in the liquid of ore deposit is adsorbed, in turnbarrel 2 rotations, after the magnetic components that is adsorbed leaves magnetic patch 3, turnbarrel 2 Surface fields weaken or when disappearing, magnetic components breaks away from turnbarrel 2 discharging opening 5 from the side discharges, and arrives the purpose of magnetic separation.But this magnetic separator is because its reasons in structure causes following shortcoming.
1, because the magnetic patch of installing at magnetic axis only is arranged on a section of bottom, therefore in the magnetic separation process, it is short that magnetic material when turnbarrel rotates a circle effectively adsorbs the working time, upset number of times on the left magnetic roller is few, disk pack is wrapped up in phenomenon and non-disk pack, and to wrap up in phenomenon serious, be difficult to reach the Expected Results of magnetic separation, production efficiency is low.
2, owing to the magnetic field intensity that is installed in the magnetic patch on the magnetic axis is identical, therefore relatively poor for the mineral magnetic separation effect of the comparison of ingredients complexity that contains different magnetic materials.
Because above-mentioned shortcoming, the Panzhihua Region in China is in the magnetic separation process of its vanadium titano-magnetite, because the TiO that contains
2Grade higher, adopt existing magnetic separator, the iron grade in the final finished can only reach about 54%, content of titanium dioxide is higher than more than 12%.In smelting process, if the low coke ratio that will cause of iron grade rises, the capacity factor of a blast furnace descends, and works as TiO
2When grade surpassed 8 ~ 9%, blast furnace can't adopt normal smelting, must allocate common iron ore concentrate into and fall titanium and just can smelt, so all improve Fe content seeking a kind of suitable technology and equipment at present in the magnetic separation process, reduced Ti content.
The utility model content
Technical problem to be solved in the utility model provides a kind of magnet separator magnetic roller that can improve in the magnetisable material effective magnetic material grade and other composition in the magnetic be carried out effective separation.
The magnet separator magnetic roller that its technical problem that solves the utility model adopts, comprise magnetic axis, turnbarrel that magnetic patch is installed, magnetic field intensity at the turnbarrel outer surface reduces from the front end to the rear end gradually along axis direction, is provided with from front end axial advance device to the back-end at the turnbarrel outer surface.
The magnetic field intensity of the magnetic patch of installing on the magnetic axis reduces from the front end to the rear end gradually along axis direction.
The magnetic field intensity of the magnetic patch of installing on the magnetic axis is identical, and the diameter of turnbarrel strengthens from the front end to the rear end gradually along axis direction.
The magnetic field intensity of the magnetic patch of installing on the magnetic axis is identical, and the diameter of described magnetic axis reduces from the front end to the rear end gradually along axis direction.
What magnetic patch adopted is high field intensity permanent magnet or electromagnet.
The axial advance device is helicla flute.
In the same cross section of magnetic axis 8 to 20 magnetic patch are installed, adjacent two magnetic patch are relative at the magnetic pole of turnbarrel outer surface.
In the same cross section of magnetic axis 8 to 20 magnetic patch are installed, 2 ~ 4 continuous magnetic patch are same pole groups, and adjacent other continuous 2 ~ 4 magnetic patch are relative magnetic pole group.
Between adjacent two magnetic patch, be provided with the magnetic patch gap.
Front end magnetic field intensity at the turnbarrel outer surface is 300～900mT, and the rear end magnetic field intensity is 50～60mT.
Adopt magnetic separator of the present utility model, owing to adopted the technology of magnetic roller change of magnetic field strength, for different magnetic materials, to separate from turnbarrel in different magnetic field intensity positions, thereby the material that can will be selected in different magnetic induction coefficients in the mineral separates, improve the effect of magnetic separation and the grade of final products, and can reclaim other magnetic in the selected mineral and utilize by magnetic separation, increased resource utilization and economic benefit.
Use magnetic separator of the present utility model can replace being used at present traditional magnetic separator of the Panzhihua Region vanadium titano-magnetite overwhelming majority, its separating effect is more remarkable.By experiment as can be known, after magnetic separation, the sefstromite concentrate grade can improve 5～10% than traditional magnetic separation, and the iron grade is reached more than 60%, and the titanium grade in the sefstromite concentrate can reduce about 4-7%, and the titanium dioxide in the sefstromite concentrate is down to below the 8-9%.The every raising 1% of iron grade, coke ratio reduces by 1～1.5%, and the capacity factor of a blast furnace will rise 1.5%, owing to the titanium dioxide quantity in the sefstromite concentrate reduces, thereby can realize the effective separation of slag iron in smelting process, reduce cost.
Description of drawings
Fig. 1 is that existing magnet separator magnetic roller is arranged schematic diagram;
Fig. 2 is that schematic diagram is arranged in the cross section of existing magnet separator magnetic roller;
Fig. 3 is that the magnetic roller of the first embodiment of the present utility model is arranged schematic diagram;
Fig. 4 is that the another kind of magnetic roller of the utility model the first embodiment is arranged schematic diagram;
Fig. 5 is that the magnetic roller of the second embodiment of the present utility model is arranged schematic diagram;
Fig. 6 is the first magnetic roller schematic cross-section;
Fig. 7 is the second magnetic roller schematic cross-section.
Reference numeral: 1-magnetic axis, 2-turnbarrel, 3-magnetic patch, 4-hopper, 5-discharging opening, 6-charging aperture, 7-helicla flute, 8-magnetic patch gap.
The specific embodiment
Magnet separator magnetic roller of the present utility model, also comprise magnetic axis, turnbarrel that magnetic patch is installed, magnetic field intensity at turnbarrel 2 outer surfaces reduces from the front end to the rear end gradually along axis direction, is provided with from front end axial advance device to the back-end at turnbarrel 2 outer surfaces.
This described front end refer to magnetic separator on an end of charging aperture 6 is set, after mineral enter from charging aperture 6 like this, can realize that gradually magnetic separation separates the motion process to the back-end from the front end of turnbarrel 2.Front end magnetic field intensity at turnbarrel 2 outer surfaces is 300 ~ 900mT, even higher, and the rear end magnetic field intensity is 50 ~ 60mT, even does not establish magnetic patch in whole rear end, and magnetic field intensity is zero, and concrete magnetic field intensity is selected and will be determined according to the magnetic material composition in the mineral.Be 600 ~ 700mT for general vanadium titano-magnetite in the front end magnetic field intensity of turnbarrel 2 outer surfaces.Mineral are in the front position of turnbarrel 2, the not magnetic material component of tool such as dust, sulfide, phosphorus etc. can not be adsorbed, just can realize separating, and for the general material of magnetic induction intensity, the surface that breaks away from turnbarrel 2 such as titanium in the position of magnetic field intensity 450 ~ 500mT realizes separating, and for the high material of magnetic induction intensity, such as iron in the rear end of turnbarrel 2 because magnetic field intensity is low even when not had magnetic field that magnetic axis forms on the turnbarrel surface, could separate with the surface of turnbarrel 2, the a plurality of discharging openings 5 that arrange by the position at magnetic separator bottom each magnetic induction intensity of correspondence like this, just different materials can be collected respectively, arrive the purpose of sorting, the effect that more existing magnetic separator can only be done a kind of sorting has had great improvement, and the sorting that is particularly suitable for the vanadium titano-magnetite of Panzhihua Region is used.
Embodiment 1
As shown in Figure 3, the magnetic field intensity of the magnetic patch 3 of installing on the magnetic axis 1 is identical, can select permanent magnet as magnetic patch, also can adopt electromagnet, and is constant when guaranteeing simultaneously the magnetic field intensity of magnetic axis 1 periphery.The diameter of turnbarrel 2 is strengthened from the front end to the rear end gradually along axis direction, like this since magnetic axis 1 surface increase gradually to the distance between the surface of turnbarrel 2, so guarantee that in the magnetic field intensity of the surface of turnbarrel 2 formation also respective change magnetic field intensity reduces from the front end to the rear end gradually along axis direction.Can also be shown in Fig. 4, the magnetic field intensity of the magnetic patch 3 of installing on the magnetic axis 1 is also identical, and the diameter of magnetic axis 1 reduces from the front end to the rear end gradually along axis direction, the diameter of turnbarrel 2 is constant, and the magnetic field intensity that also can be implemented in the surface formation of turnbarrel 2 reduces from the front end to the rear end gradually along axis direction.
Embodiment 2
As shown in Figure 5, at magnetic axis 1 several magnetic patch 3 are installed, magnetic patch 3 can be that the high field intensity permanent magnet also can be electromagnet, and guarantee to strengthen gradually along the magnetic field intensity of each magnetic patch 3 of axis direction from the front end to the rear end, magnetic axis 1 surface is identical to the distance between the surface of turnbarrel 2 at axis direction, so guarantee that in the magnetic field intensity of the surface of turnbarrel 2 formation also respective change magnetic field intensity reduces from the front end to the rear end gradually along axis direction.Magnetic patch 3 adopts in the present embodiment, and to be that electromagnet passes through the Current Control magnetic field intensity simpler than the easier realization of permanent magnet and technology.
Embodiment 2 is compared with embodiment 1, and the installation requirement of its magnetic patch 3 is high, complex structure, thus still there is in force technical difficulty, so embodiment 1 is preferred embodiment of the present utility model.
In above-mentioned two embodiment, after magnetic material is attracted to turnbarrel 2 surfaces, guarantee when 2 rotation of rotation rotating cylinder, magnetic material moves axially the purpose that could effectively realize sorting, be provided with the axial advance device on turnbarrel 2 surfaces for this reason, the axial advance device can adopt wind-force or waterpower as the power of axial advance, employing helicla flute 7 that also can be as shown in accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5.
As only adopting the axial advance device, when the magnetic material absorption affinity is larger, the effect of its axially-movable not necessarily can reach desirable effect, therefore as shown in Figure 6, the magnetic patch of installing at the same radial section of the magnetic axis 1 of embodiment 1 and embodiment 2 is divided into a plurality of layouts, preferably adopt 8 to 20 magnetic patch, adjacent two magnetic patch 3 are relative at the magnetic pole of turnbarrel 2 outer surfaces, when the magnetisable material on the turnbarrel 2 by adjacent magnetic patch 3 between section the time, because the magnetic line of force changes, magnetic material will break away from turnbarrel 2 surfaces moment and overturn, and correspondingly will axially move under the effect of axial advance device like this.The layout of magnetic patch 3 can also be changed into 2 ~ 4 continuous magnetic patch is same pole groups, and adjacent other continuous 2 ~ 4 magnetic patch are relative magnetic pole group.As shown in Figure 7, continuous two magnetic patch wherein are N utmost point magnetic pole group, and adjacent other continuous two magnetic patch 3 are S utmost point magnetic pole group, and adjacent continuous two magnetic poles 3 are again N utmost point magnetic pole group again, layout by that analogy guarantees moving axially of magnetic material when can also improve magnetic field intensity like this.
In order to improve the rollover effect of magnetic material after breaking away from turnbarrel 2 surfaces, promote it to move axially, between adjacent two magnetic patch 3, be provided with magnetic patch gap 8 because the magnetic field that forms in the outside of each magnetic patch 3 is that the far field is strong, a little less than the table, and are table field intensity in the magnetic field at 8 places, magnetic patch gap.A little less than the far field, so the influence of magnetic field that magnetic material is subject to changes, make magnetic material upset and axially movable effect more obvious.
Adopt magnetic roll structure of the present utility model, by the magnetic iron ore magnetic separation experiment to Panzhihua Region, the Fe wt% in the finished product can be brought up to about 60%, Ti wt% is reduced to below 10%, can also improve the rate of recovery of heterogeneity simultaneously.Magnetic roller of the present utility model also is applicable to contain the use of composite material such as the magnetic separators such as metal recovery, chemical materials magnetic separation of Multiple components.
Claims (10)
1. magnet separator magnetic roller, comprise magnetic axis, turnbarrel that magnetic patch is installed, it is characterized in that, from the front end to the rear end, reduce gradually along axis direction in the magnetic field intensity of turnbarrel (2) outer surface, be provided with from front end axial advance device to the back-end at turnbarrel (2) outer surface.
2. magnet separator magnetic roller as claimed in claim 1 is characterized in that, the magnetic field intensity of the upper magnetic patch (3) of installing of described magnetic axis (1) reduces from the front end to the rear end gradually along axis direction.
3. magnet separator magnetic roller as claimed in claim 1 is characterized in that, the magnetic field intensity of the upper magnetic patch (3) of installing of described magnetic axis (1) is identical, and the diameter of described turnbarrel (2) strengthens from the front end to the rear end gradually along axis direction.
4. magnet separator magnetic roller as claimed in claim 1 is characterized in that, the magnetic field intensity of the upper magnetic patch (3) of installing of described magnetic axis (1) is identical, and the diameter of described magnetic axis (1) reduces from the front end to the rear end gradually along axis direction.
5. magnet separator magnetic roller as claimed in claim 1 is characterized in that, what described magnetic patch (3) adopted is high field intensity permanent magnet or electromagnet.
6. magnet separator magnetic roller as claimed in claim 1 is characterized in that, described axial advance device is helicla flute (7).
7. magnet separator magnetic roller as claimed in claim 1 is characterized in that, in the same cross section of magnetic axis (1) 8 to 20 magnetic patch (3) is installed, and adjacent two magnetic patch (3) are relative at the magnetic pole of turnbarrel (2) outer surface.
8. magnet separator magnetic roller as claimed in claim 1 is characterized in that, in the same cross section of magnetic axis (1) 8 to 20 magnetic patch (3) is installed, and 2 ~ 4 continuous magnetic patch are same pole groups, and adjacent other continuous 2 ~ 4 magnetic patch are relative magnetic pole group.
9. such as claim 7 or 8 described magnet separator magnetic rollers, it is characterized in that, between adjacent two magnetic patch (3), be provided with magnetic patch gap (8).
10. such as an arbitrary described magnet separator magnetic roller in the claim 1 ~ 4, it is characterized in that, is 300 ~ 900mT in the front end magnetic field intensity of turnbarrel (2) outer surface, and the rear end magnetic field intensity is 50 ~ 60mT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486922 CN202778708U (en) | 2012-09-21 | 2012-09-21 | Magnetic separator magnetic roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486922 CN202778708U (en) | 2012-09-21 | 2012-09-21 | Magnetic separator magnetic roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202778708U true CN202778708U (en) | 2013-03-13 |
Family
ID=47806052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486922 Expired - Fee Related CN202778708U (en) | 2012-09-21 | 2012-09-21 | Magnetic separator magnetic roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202778708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225625A (en) * | 2018-11-07 | 2019-01-18 | 夏冬生 | A kind of adjustable magnetic plant of magnetic adsorption capacity |
-
2012
- 2012-09-21 CN CN 201220486922 patent/CN202778708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225625A (en) * | 2018-11-07 | 2019-01-18 | 夏冬生 | A kind of adjustable magnetic plant of magnetic adsorption capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170921 |