CN104815753B - Floating agglomeration electromagnetic fine selection equipment - Google Patents
Floating agglomeration electromagnetic fine selection equipment Download PDFInfo
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- CN104815753B CN104815753B CN201510214992.2A CN201510214992A CN104815753B CN 104815753 B CN104815753 B CN 104815753B CN 201510214992 A CN201510214992 A CN 201510214992A CN 104815753 B CN104815753 B CN 104815753B
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Abstract
The invention provides a floating agglomeration electromagnetic concentration device, wherein the lower end of a cylinder body is provided with a concentrate discharge port or is connected with a concentrate discharge pipe; the discharge hole of the ore feeding pipe extends into the column body and is positioned at the middle upper part in the column body; the output port of the micro-nano bubble generating device is tangentially communicated with the inner cavity of the column body and corresponds to the discharge port of the ore feeding pipe; the alternating magnetic field generator is positioned at the periphery of the column body and provides a non-uniform alternating magnetic field for the column body; the overflow launder is positioned above the cylinder and is communicated with the upper end of the cylinder, the equipment can generate a large amount of micro-nano bubbles, particularly nano bubbles, and the micro-nano bubbles and the alternating pulse electromagnetic field act together to enable magnetic/strong magnetic minerals and non-magnetic/weak magnetic gangue minerals in material pulp to respectively generate 'dispersion-agglomeration-redispersion-selective agglomeration', finally enable the non-magnetic/weak magnetic gangue minerals to be thoroughly separated from a magnetic chain, effectively avoid the phenomenon of tailing blacking, and finally obtain high-grade magnetic iron ore concentrate or titanomagnetite ore concentrate.
Description
Technical field
The invention belongs to the selected manufacture field of mineral, and in particular to a kind of electromagnetism picking equipment, is mainly used in magnetic iron ore
The strongly magnetic mineral such as rough concentrate or titanomagnetite rough concentrate carries out upgrading and drops miscellaneous and high efficiency separation.
Background technology
In each mineral processing plant domestic at present, the main magnetic plant adopting is drum magnetic separator, and its principle is mainly ore deposit
Slurry through to ore deposit case flow into cell body after, under the flow action to ore deposit sparge pipe, ore particle be in loose condition (of surface) entrance cell body to mining area,
Under the influence of a magnetic field, magnetic ore particle occurs magnetic to gather and form " magnetic group " or " magnetic linkage ", and " magnetic group " or " magnetic linkage " are subject in ore pulp
Magneticaction, moves to magnetic pole, and is attracted on cylinder, due to fine grained mineral（Including granule iron concentrate）Interface special
Property it is easy to occur heterocoagulation phenomenon and bulky grain gangue mineral to form aggregate, thus mine tailing occurs run black problem, plus
Also there is the jiggly problem of overflow in upper this drum magnetic separator, be difficult to magnetic impure mineral will be carried in ore pulp effectively to go
Remove, the concentrate grade finally giving is relatively low.
Content of the invention
For above-mentioned deficiency, the present invention provides a kind of floating reunion electromagnetism picking equipment, and this equipment can effectively remove ore pulp
In the impurity such as non magnetic/weak magnetic gangue mineral, lift concentrate grade, be particularly well-suited to magnetic iron ore rough concentrate or titanium Magnet
It is miscellaneous that the strongly magnetic minerals such as ore deposit rough concentrate carry out upgrading fall.
The present invention is realized by such technical scheme：
A kind of floating reunion electromagnetism picking equipment, including：
Cylinder, its lower end setting concentrate floss hole or connection concentrate delivery pipe；
Mineral-feeding pipe, the middle and upper part that its discharging opening stretches in cylinder and is located in cylinder；
Micro-nano bubble generator, its delivery outlet is connected with the inner chamber tangent of cylinder and the discharging opening position with mineral-feeding pipe
Put corresponding；
Alternating magnetic field generator, positioned at the periphery of cylinder, provides uneven alternating magnetic field for cylinder；
Overflow launder, positioned at the top of cylinder, is connected with the upper end of cylinder.
Preferably, micro-nano bubble generator includes：
Suction chamber, is connected with air access tube；
Nozzle, is stretched into suction interior and is connected with bubble delivery pipe；
Wherein, bubble delivery pipe is divided into I section, II section and III section, and one end of I section is stretched into suction chamber and connected with nozzle, another
End is stretched out from suction chamber and connect with II section, III section from beginning outwards in horn-like with II section junction, its big end and cylinder intracavity phase
Cut connection.
Preferably, be provided with the path of described II section cutting bulb apparatus, this is cut bulb apparatus and includes multiple being radially disposed in II
Section in and carry irregular hole filter screen.
Preferably, described cylinder includes vertical epimere and taper hypomere, multigroup serpentine pipe of alternating magnetic field generator is encouraged
Magnetic coil is wrapped in this two sections of periphery, forms electromagnetism excitation revolving magnetic system.
Preferably, described serpentine pipe magnet exciting coil is 5～15 groups, every group of number of turn is 50～100 circles, and each group serpentine pipe is encouraged
Magnetic coil is connected along cylinder axial direction circumferential arrangement distribution and with field power supply.
Preferably, described mineral-feeding pipe is arranged vertically in cylinder, its discharging opening is located at the middle and upper part of cylinder intracavity, charging
Mouth stretches out above cylinder.
Preferably, described cylinder includes inner and outer wall structure, form a confined space between inwall and outer wall, be used for
Assembling serpentine pipe magnet exciting coil.
Preferably, being provided with inflator pump and pressure regulator on described air access tube, for adjusting air inlet,
Control yield and the stability of micro-nano bubble further.
Due to employing said structure, the floating reunion electromagnetism picking equipment one side that the present invention provides takes full advantage of rapids and penetrates
The turbulent fluctuation diffusion principle of stream, to transmit energy and quality, produces micro-nano bubble, particularly nano bubble in a large number, and adopts tangent line
These micro-nano bubbles are conveyed in cylinder angle, thus the current in cylinder are produced with rotation impulse force upwards；Separately
On the one hand, the present invention adopts multigroup serpentine pipe magnet exciting coil to be wound around along cylinder axial direction circumferential arrangement, and is connected with field power supply, from
And forming electromagnetism excitation revolving magnetic system to produce pulse alternating magnetic field, it, is made in material ore pulp with micro-nano bubble collective effect
There is " dispersion reunion redispersion selection respectively in magnetic/strongly magnetic mineral therein and non magnetic/weak magnetic gangue mineral
Property reunite ", can also so circulate, so that non magnetic/weak magnetic gangue mineral and magnetic/strongly magnetic mineral is sufficiently separated, and make
Non magnetic/weak magnetic gangue mineral thoroughly departs from magnetic linkage, and under the collective effect with water buoyancy for the micro-nano foam, overflow goes out cylinder
Outward, this floating reunion electromagnetism picking equipment effectively prevent mine tailing and runs black phenomenon, effectively can remove the impure mineral in ore pulp
Remove, finally obtain high-grade Armco magnetic iron concentrate or titanomagnetite concentrate, this equipment, compared with traditional drum magnetic separator, at least may be used
Improve 6～10 percentage points of iron concentrate grade, and sort that speed is fast, compact conformation, with low cost, energy-efficient.
Brief description
Fig. 1 floats the simplified schematic diagram of reunion electromagnetism picking equipment for this case.
Fig. 2 is the simplified schematic diagram of micro-nano bubble generator.
The structure diagram that Fig. 3 is connected with cylinder intracavity tangent for bubble delivery pipe.
Specific embodiment
In order to be more clearly understood from the purpose of the present invention, technical scheme and beneficial effect, below in conjunction with the accompanying drawings to this
Bright be described further, but not by protection scope of the present invention limit in the examples below.
As shown in Figure 1 to Figure 3, a kind of floating reunion electromagnetism picking equipment, including：
Cylinder 1, its lower end arrange concentrate floss hole 31, or connect concentrate delivery pipe, for discharge selected after high-grade
Concentrate；
Be arranged vertically at the mineral-feeding pipe 2 in cylinder 1, its discharging opening 21 stretch in cylinder 1 and in cylinder 1 on
Portion, is that motion in cylinder 1 for the ore pulp reserves enough spaces, charging aperture 22 stretches out above cylinder 1, is easy to be fed；
Micro-nano bubble generator 33, its delivery outlet（The i.e. outlet of III section）Connect simultaneously with the inner chamber tangent of cylinder 1
Corresponding with discharging opening 21 position of mineral-feeding pipe 2, so-called ＂ position corresponding ", refer to that this delivery outlet is high with the level of discharging opening 21
Quite, it is just right that both avoid degree, this connectivity structure neither just to tangent again, is not only able to make the water in cylinder obtain one
Individual revolving force upwards, can apply an active force broken up to the material ore pulp of discharging opening 21, dynamics is more moderate again；This is micro-
Nano-bubble generating apparatus include the suction chamber 4 connecting with air access tube 5 and stretch in suction chamber 4 and with bubble delivery pipe 7
The nozzle 6 of connection, wherein, bubble delivery pipe 7 is divided into I section, II section and III section, and suction chamber 4 is stretched into nozzle 6 even in one end of I section
Logical, the other end is stretched out from suction chamber 4 and connect with II section, III section from beginning outwards in horn-like with II section junction, its big end and post
The tangent connection of body 1 inner chamber, III section, as the diffuser of micro-nano bubble, makes micro-nano bubble more uniformly enter cylinder 1
Interior be fully contacted with ore pulp, this micro-nano bubble generator takes full advantage of the turbulent fluctuation diffusion principle of turbulent jet flow to produce micron
Bubble and nano bubble, i.e. stock solution, under the pressure of high-pressure pump 30 acts on, after nozzle 6 projects at a high speed, is produced in suction chamber 4
Raw negative pressure, jet surface produces friction with the air in suction chamber 4, and jet particle and air particle are replaced, and air is high
Speed is involved in jet, thus producing a large amount of micron bubbles and nano bubble（The micro-nano bubble of ＂ can be referred to as ", on micron bubble has
The fast feature of lifting speed, is provided that froth flotation power, and carries negative electricity when nano bubble produces, so having very strong interface
Activity, and can be present in for a long time in liquid, carry out selectivity reunion between the gangue mineral that can preferentially make surface hydrophobicity, thus
The black phenomenon of race that can significantly avoid granule iron concentrate to reunite with gangue mineral and lead to）, these fluids and micro-nano bubble one
Rise, deliver into III section and be diffused through the I section of bubble delivery pipe 7, II section, thus diffusible enter into cylinder 1
In, increase the contact area of micro-nano bubble and material ore pulp；After jet enters into I section with micro-nano bubble, suction chamber 4
Inside automatically becoming negative pressure, thus forming parital vacuum, now the air in air access tube 5 can be involved in into suction chamber 4 again,
There is particle transposition with jet again, thus define substantial amounts of micro-nano bubble again, so constantly circulate, on air access tube 5
Power need not additionally be applied, all can have air constantly automatically into suction chamber 4, save energy, this micro-nano bubble fills
Put 33 bubble luminous efficiencies height, energy consumption is low, bubble size is uniform in size and diameter is less than normal, equipment manufacturing cost is low, control technology
Very simple, it fully combines dispersion air method and the advantage of shearing bubble method, and structure is simple, stable, bubble size
Little and uniform, controllable, equipment manufacturing cost are low；
Alternating magnetic field generator, the present embodiment adopts multigroup serpentine pipe magnet exciting coil 9, and these coils are divided into 5～15 groups, often
The group number of turn is 50～100 circles, and each group serpentine pipe magnet exciting coil 9 is wound around along the axial circumferential arrangement of cylinder 1 and is distributed in the outer of cylinder 1
Enclosing, and be connected with field power supply, thus forming electromagnetism excitation revolving magnetic system, providing uneven alternating magnetic field for cylinder 1；
Overflow launder 3 is located at the top of cylinder 1, connects with the upper end of cylinder 1, for discharging the impurity after reuniting.
This floating reunion electromagnetism picking equipment is particularly suited for sorting the epistasis magnetic such as magnetic iron ore rough concentrate or titanium magnetic ore deposit rough concentrate
Mineral, its workflow is：
First, after material ore pulp and floating agent being stirred, continuously feed from the charging aperture 22 of mineral-feeding pipe 2, material
Ore pulp enters into the middle and upper part of cylinder 1 inner chamber from the discharging opening 21 of mineral-feeding pipe 2, and meanwhile, micro-nano bubble generator produces
Raw micro-nano bubble is entered in cylinder 1 along in cylinder 1 internal chamber wall tangential direction and is mixed with water, why wants tangential direction to enter
Enter, reason is that this angle can apply a rotational impulse to the water in cylinder 1, so that the water in cylinder 1 is constantly rotated upwards
Motion, the material ore pulp at discharging opening 21, in the presence of flow dynamic and self gravitation, constantly spreads out in cylinder 1,
This process can be referred to as " dispersion "；
Magnetic/strongly magnetic mineral in material ore pulp and non magnetic/weak magnetic gangue mineral " dispersion " and motor process
In, non magnetic/weak magnetic gangue mineral or other impurities surface carried out hydrophobic treatment, thus to the greatest extent may be used with micro-nano bubble
Occur in time that can be short to reunite for the first time, preliminarily form " flocculate " and move upwards, magnetic/strongly magnetic mineral is in current
Also reunite, form self gravitation bigger " aggregate " and moving downward, now either " flocculate " or " aggregate
", all reach dynamic balance state to a certain extent, this process can be referred to as " reunion "；
Then, it is energized to serpentine pipe magnet exciting coil 9（It is energized and disconnect after a bit of time）, now moment generation pulsed magnetic
, these " flocculate " and " aggregates " under strong pulsed magnetic field action, dynamic balance state all by heavy damage, thus
Spread out continuation motion, serpentine pipe magnet exciting coil 9 in the energized state, these " flocculate " acted on by four kinds of power, bag
Include downward magnetic field force, the gravity of itself, the flow dynamic of rotation rising and the micro-nano gas of serpentine pipe magnet exciting coil 9 generation
Bubble flotation power upwards, this process can be referred to as " redispersion "；
Subsequently, broken up " flocculate " is continued the ionized motion to cylinder 1, and is condensed upon with micro-nano bubble again
Together, progressively reach dynamic balance again, wherein, non magnetic/weak magnetic gangue mineral or other impurities are in pulse magnet field force, micro-
Under the collective effect of nano bubble, self gravitation and water flow rotary power, separate with the magnetic mineral in mineral completely,
Depart from magnetic linkage eventually, and under the revolving force collective effect on micro-nano bubble buoyancy with current direction, reunite again, can claim
Make " selectivity reunion ", finally under the common buoyancy with water for the micro-nano bubble, go out in cylinder 1 by overflow launder 3 overflow,
And magnetic/strongly magnetic mineral（Especially monomer magnetite ore particles）The pulse magnet field force from top to bottom discontinuously producing and itself
Under action of gravity, through the polymerization of multiple magnetic gravity, repeatedly repeatedly overcome the floating of rotation ascending current power and micro-nano bubble
Select power, constantly sink, finally discharged by the concentrate floss hole or connection concentrate delivery pipe of cylinder 1 bottom, obtain high-grade magnetic
Iron mine concentrate or titanomagnetite concentrate.
Embodiment two：
As the improvement project of embodiment one, can arrange on the path of bubble delivery pipe 7II section multiple cut bulb apparatus 8,
Being mainly used in the first micro-nano bubble producing is sheared, thus obtaining more nano bubbles, making micron bubble and nanometer
The size of bubble is more uniform, prevents the merger between micron bubble and nano bubble, be conducive to " flocculate " and floating reunite suitable
Profit is carried out；In the present embodiment, cutting bulb apparatus 8 can be multiple filter screens being radially disposed in II section and carrying irregular hole, with
The bubble being relatively large in diameter is blocked and is sheared, formed more nano bubbles, or, cut bulb apparatus 8 and can adopt multiple bands
The friction plate of irregular lines it is also possible to play the effect that the air pocket in current is sheared, to form more nanometers
Bubble；Again or, it would however also be possible to employ the bar-shaped baffler of Herba Agrimoniae it is also possible to being sheared to bubble and blocking, do not do more by here
Many restrictions.
Embodiment three：
As further improvement project, cylinder 1 is divided into vertical epimere and taper hypomere by the present embodiment, and alternating magnetic field is sent out
Multigroup serpentine pipe magnet exciting coil 9 of raw device is wrapped in this two sections of periphery, can produce penetrability in vertical epimere and cone hypomere
Uneven alternating magnetic field, lifted sorting result, taper hypomere be more conducive to the magnetic mineral particles after flotation are collected, more
Thoroughly discharge from concentrate floss hole or connection concentrate delivery pipe；Further, can also by cylinder 1 be set to inwall and
The fit structure of outer wall, and form a confined space 10 between inwall and outer wall, for assembling serpentine pipe magnet exciting coil 9.
It is further an inflator pump to be arranged on described air access tube 5 and pressure regulator in figure is not shown, be easy to adjust
Section controls the air capacity entering suction chamber 4, thus can need to control the yield of micro-nano bubble according to ore dressing, controls further
Sorting result.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (9)
1. a kind of floating reunion electromagnetism picking equipment is it is characterised in that include：
Cylinder (1), its lower end setting concentrate floss hole or connection concentrate delivery pipe；
Mineral-feeding pipe (2), the middle and upper part that its discharging opening (21) stretches in cylinder (1) and is located in cylinder (1)；
Micro-nano bubble generator, its delivery outlet is connected and the discharging opening with mineral-feeding pipe (2) with the inner chamber tangent of cylinder (1)
(21) position is corresponding, and that is, this delivery outlet is suitable with the level height of discharging opening (21), and delivery outlet is avoided with discharging opening (21)
Just right；
Alternating magnetic field generator, positioned at the periphery of cylinder (1), is that cylinder (1) provides uneven alternating magnetic field；
Overflow launder (3), positioned at the top of cylinder (1), is connected with the upper end of cylinder (1).
2. float reunion electromagnetism picking equipment as claimed in claim 1 it is characterised in that described micro-nano bubble generator bag
Include：
Suction chamber (4), is connected with air access tube (5)；
Nozzle (6), is stretched in suction chamber (4) and is connected with bubble delivery pipe (7)；
Wherein, bubble delivery pipe (7) is divided into I section, II section and III section, and suction chamber (4) is stretched into nozzle (6) even in one end of I section
Logical, the other end is stretched out from suction chamber (4) and connect with II section, and III section begins to be in outwards horn-like from II section junction, its big end and
The tangent connection of cylinder (1) inner chamber.
3. float reunion electromagnetism picking equipment as claimed in claim 2 to cut it is characterised in that being provided with the path of described II section
Bulb apparatus (8).
4. as claimed in claim 3 float reunion electromagnetism picking equipment it is characterised in that described cut bulb apparatus (8) include multiple
It is radially disposed in II section and carry the filter screen of irregular hole.
5. the floating reunion electromagnetism picking equipment as any one of claim 2 to 4 is it is characterised in that described cylinder (1) wraps
Include vertical epimere and taper hypomere, multigroup serpentine pipe magnet exciting coil (9) of alternating magnetic field generator is wrapped in this two sections of periphery,
Form electromagnetism excitation revolving magnetic system.
6. float reunion electromagnetism picking equipment as claimed in claim 5 it is characterised in that described serpentine pipe magnet exciting coil (9) is 5
～15 groups, every group of number of turn is 50～100 circles, each group serpentine pipe magnet exciting coil (9) along cylinder (1) axial direction circumference arranged distribution and with
Field power supply connects.
7. float reunion electromagnetism picking equipment as claimed in claim 5 it is characterised in that described mineral-feeding pipe (2) is arranged vertically at
In cylinder (1), its discharging opening (21) is located at the middle and upper part of cylinder (1) inner chamber, and charging aperture (22) stretches out above cylinder (1).
8. float reunion electromagnetism picking equipment as claimed in claim 5 it is characterised in that described cylinder (1) includes inwall with outward
Wall construction, forms a confined space (10) between inwall and outer wall, for assembling serpentine pipe magnet exciting coil (9).
9. float reunion electromagnetism picking equipment as claimed in claim 5 it is characterised in that described air access tube (5) is above arranged
There are inflator pump and pressure regulator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510214992.2A CN104815753B (en) | 2015-04-30 | 2015-04-30 | Floating agglomeration electromagnetic fine selection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214992.2A CN104815753B (en) | 2015-04-30 | 2015-04-30 | Floating agglomeration electromagnetic fine selection equipment |
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| CN104815753A CN104815753A (en) | 2015-08-05 |
| CN104815753B true CN104815753B (en) | 2017-02-22 |
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