CN104001620B - Fine powder of magnetite grade elevator - Google Patents
Fine powder of magnetite grade elevator Download PDFInfo
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- CN104001620B CN104001620B CN201410229232.4A CN201410229232A CN104001620B CN 104001620 B CN104001620 B CN 104001620B CN 201410229232 A CN201410229232 A CN 201410229232A CN 104001620 B CN104001620 B CN 104001620B
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Abstract
The present invention includes cylinder, driving device, actuating device, magnetic separation system and agitating device for a kind of fine powder of magnetite grade elevator.Cylinder is vertically arranged, and the first half is cylinder, and lower half is cone, and cylindrical end face is formed around overflow launder, and the folder of cone connects downwards concentrate mouth；Driving device passes through actuating device connection rotating shaft upper end, and rotating shaft lower end is positioned at cylinder and is connected with impeller through threeway, and threeway is also connected with charging aperture；The sidewall of cone is provided with water inlet and is connected with sluice way, leaves spacing and direction of rotation is contrary between sluice way with impeller；The magnet ring interval of magnetic separation system is fixed on cylinder inwall, and magnet ring is made up of multiple magnetic piece arranged at equal intervals；The magnetic field of magnet ring is from top to bottom weakened gradually.Ore pulp can fully be broken up by the agitating device set by the present invention, uniform stirring, and the centrifugal force field of generation can make ore pulp final election, and the sluice way of setting coordinates the reverse rotation of impeller can ore pulp be cleaned, and final acquisition samples high Iron concentrate.
Description
Technical field
The present invention relates to a kind of mining machinery, be specifically related to a kind of preparation equipment, particularly a kind of fine powder of magnetite grade elevator.
Background technology
The magnetic plant being currently used for magnetic iron ore mostly is wet drum magnetic separator.This kind of wet drum magnetic separator is, by equally distributed magnetic field, the slurry entering cylinder is carried out magnetic separation.The operation principle of existing wet drum magnetic separator is: one permanent magnetic pulley of level erection on cell body, after ore pulp enters cell body, the Iron concentrate comprised is adsorbed by permanent magnetic pulley, and the ore pulp not comprising Iron concentrate overflows from overflow launder.Discharge outlet at cell body is provided with the scraper plate that can contact with permanent magnetic pulley, when on permanent magnetic pulley, the magnetic granule of absorption turns to wiper positions, can be peeled off by scraper plate, and then fall from discharging opening from cylinder, and the so far magnetic separation of existing wet drum magnetic separator has worked.
It can be seen that the magnetic separation low precision of existing wet drum magnetic separator in from the above, it is thus achieved that Iron concentrate taste low.It is problematically, first, and ore pulp enters cell body when carrying out magnetic separation, and slurry is uniform not, and Iron concentrate may be wrapped up by impurity, causes that Iron concentrate carries out magnetic separation and is just directly entered overflow launder, causes the waste of resource；Secondly, permanent magnetic pulley cannot be carried out repeatedly effective final election for the Iron concentrate in ore pulp, and Iron concentrate can carry impurity and be adsorbed, therefore can reduce the taste obtaining Iron concentrate.
For the problems referred to above, though prior art has improvement, e.g., improve and enter the uniformity of ore pulp in cell body by setting up the equipment of stirring ore pulp；For another example, increase the magnetic separation number of times of ore pulp by setting up many group permanent magnetic pulleys, improve the final taste obtaining Iron concentrate with this.But these improve is only realized by increase equipment, not only increases the equipment cost of magnetic separation, and the taste obtaining Iron concentrate is still limited.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of fine powder of magnetite grade elevator, it is possible to realize fully the breaing up of ore pulp, uniform stirring and ore pulp is implemented final election, the final taste promoting obtained fine powder of magnetite.
The technical solution adopted for the present invention to solve the technical problems is: a kind of fine powder of magnetite grade elevator, including cylinder, driving device, actuating device, magnetic separation system, charging aperture, go out mine tailing mouth, go out concentrate mouth and overflow launder, it is characterized in that: described cylinder is supported by support, the axis setting perpendicular to the ground of cylinder, the first half of cylinder is cylinder, lower half is cone, described cylinder is identical with the diameter of cone, bottom surface overlaps through, cylindrical end face is opening, it is formed around overflow launder at opening, overflow launder is connected with going out mine tailing mouth, the pointed end of cone is connected with going out concentrate mouth；The clutch end of described driving device is connected with the power intake of agitating device by actuating device, described agitating device includes rotating shaft and impeller, rotating shaft is positioned at the shaft core position of cylinder, the upper end of rotating shaft is stretched out and is connected with actuating device outside cylinder, the lower end of rotating shaft is positioned at cylinder and is socketed a threeway, threeway includes two imports and an outlet, one of them inlet and outlet is coaxially through, the lower end of rotating shaft is connected with impeller after passing from this coaxial inlet and outlet, and another import of threeway is connected with the charging aperture of cylinder lateral wall；Described impeller is positioned at the intersection of cylinder inner cylinder and cone；The sidewall of described cylinder lower half cone is provided with water inlet, and this water inlet is connected with a spiral type sluice way in cone, and sluice way can guide current to rotate in cylinder, and the drain direction of sluice way is contrary with the direction of rotation of impeller；Spacing is left between described sluice way and impeller；Described magnetic separation system includes at least twice magnet ring, and described magnet ring interval is fixed on the cylinder inwall of the cylinder first half, and the magnet ring of the top is near cylindrical end face, and every one magnet ring is made up of multiple magnetic piece arranged at equal intervals；The magnetic field of described magnet ring is from top to bottom weakened gradually.
Further, described magnet ring is four roads, and the magnetic field of the top first magnet ring is the strongest, and the magnetic field of middle second and the 3rd road magnet ring is identical, and the magnetic field of bottom the 4th road magnet ring is the most weak.
Further, described magnet ring is that magnetic piece passes through to constitute on the fixing aluminum ring of anticorrosive.
Further, cover equipped with cover plate above the overflow launder of the cylinder end face surrounding of the described cylinder first half, the upper end of described rotating shaft by bearing block run through fixing on the cover board, described driving device is fixing on the cover board.
Further, described driving device is frequency conversion motor.
Further, described actuating device is belt pulley.
Further, in described threeway another import and described coaxial inlet and outlet vertically through.
The beneficial effects of the present invention is, owing to being provided with agitating device in cylinder, and agitating device is connected by threeway with charging aperture, so ore pulp enters the impeller that first can be stirred the rotation of device high speed in cylinder and fully breaks up, to reach ore pulp is carried out the purpose of uniform stirring.It is fixed on the magnet ring in cylinder can the ore pulp of even concentration fully be adsorbed.Treat that on magnet ring, the Iron concentrate of absorption increases gradually, Iron concentrate can drop under gravity, now the impeller owing to rotating produces centrifugal force field in cylinder, so the Iron concentrate of heavier-weight can be got rid of continues whereabouts to surrounding, the mud of lighter in weight is concentrated in that central core region is elevated carries out final election.Water inlet sluice way set in the present invention turns on the contrary due to direction of rotation and impeller, and between sluice way and impeller, leave interval, the shearing force level that Iron concentrate in this region can be produced by impeller and rotary water current so dropping is cleaned, to realize the further roguing to Iron concentrate.Finally, Iron concentrate of high grade is because heavier being got rid of to the surrounding of cone and then landing to going out concentrate mouth by centrifugal force, and the mud under eluriating is because lighter in weight can be promoted to cylinder top, spread to surrounding gradually, before entering overflow launder, the magnet ring of cylinder the top is the strongest due to magnetic field, it is possible to adsorb containing more ferromagnetic microgranule in mud, mud then can enter overflow launder and flow out from going out mine tailing mouth.From the foregoing, the present invention magnetic separation of ore pulp be have passed through fully break up, uniform stirring, final election and scouring, the Iron concentrate that taste is high may finally be obtained.
Accompanying drawing explanation
Fig. 1 is the structural representation of invention.
In figure: 1, support, 2, go out concentrate mouth, 3, cylinder, 4, water inlet, 5, sluice way, 6, impeller, 7, threeway, 8, rotating shaft, 9, magnetic separation system, 901, magnet ring, 902, magnetic piece, 10, mine tailing mouth is gone out, 11, overflow launder, 12, cover plate, 13, bearing block, 14, actuating device, 15, driving device, 16, charging aperture, A, water inlet current direction of rotation, B, impeller direction of rotation.
Detailed description of the invention
The core design thinking of the present invention is to arrange agitating device in cylinder, can fully be broken up by the slurry that enter in cylinder, uniform stirring, enables magnetic separation system fully to adsorb.And owing to agitating device creates centrifugal force field in cylinder, so slurry continuous elevated final election in cylinder, thus increasing magnetic separation precision, improve the productivity of Iron concentrate.Additionally, be additionally provided with the sluice way of bootable water inlet water flow rotary, the Iron concentrate fallen from magnetic separation system, can be cleaned by the contrary current of direction of rotation and impeller, final obtain high-grade Iron concentrate.
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment, the present invention is described in further detail.
As it is shown in figure 1, a kind of fine powder of magnetite grade elevator, including cylinder 3, driving device 15, actuating device 14, magnetic separation system 9, charging aperture 16, go out mine tailing mouth 10, go out concentrate mouth 2 and overflow launder 11.
The first half of cylinder 3 is cylinder, and the diameter that lower half is cone, cylinder and cone is identical.Cylinder overlaps with the bottom surface of cone and both sidewalls are connected through.Cylindrical end face is opening, is formed around overflow launder 11 at opening.Overflow launder 11 is connected with going out mine tailing mouth 10.The folder end of cone downwards with go out concentrate mouth 2 and be connected.The cylindrical sides of cylinder 3 first half is provided with charging aperture 16, and the cone side of cylinder 3 lower half is provided with water inlet 4.The axis of cylinder 3 is arranged with ground, and the frame firm by support 1 is put on the ground.
The clutch end of driving device 15 is connected with the power intake of agitating device by actuating device 14.Wherein, driving device 15 is frequency conversion motor.Actuating device 14 is belt pulley.Agitating device includes rotating shaft 8 and impeller 6.In order to make the work stable on cylinder 3 of driving device 15 and agitating device, can cover above the overflow launder 11 of cylinder 3 end face surrounding and fill a cover plate 12, rotating shaft 8 upper end of agitating device is run through be fixed on cover plate 12 by bearing block 13, and driving device 15 is fixed on the upper surface of cover plate 12.The clutch end of frequency conversion motor and the power intake of rotating shaft 8 are connected by the belt pulley as actuating device 14.
Above-mentioned structure outside middle cylinder body 3 of the present invention illustrates, existing structure within cylinder 3 is arranged is described in detail, specific as follows:
Rotating shaft 8 in agitating device is positioned at the shaft core position of cylinder 3.The upper end of rotating shaft 8 is stretched out and is connected with actuating device 14 outside cylinder 3, and the lower end of rotating shaft 8 is positioned at cylinder 3 and is socketed a threeway 7.Threeway 7 includes two imports and an outlet, and one of them inlet and outlet is coaxially through, another import can with coaxial inlet and outlet vertically through.The lower end of rotating shaft 8 is connected with impeller 6 after passing from coaxial inlet and outlet, and another import is connected with the charging aperture 16 of cylinder 3 sidewall.Impeller 6 is positioned at the intersection of cylinder 3 inner cylinder and cone.
The cylindrical inwall of cylinder 3 first half is provided with magnetic separation system 9.This magnetic separation system 9 includes at least twice magnet ring 901, and magnet ring 901 interval is fixed on the cylinder inwall of cylinder 3 first half, and every one magnet ring 901 is made up of multiple magnetic piece 902 arranged at equal intervals, and the magnet ring 901 of the top is near cylindrical end face.Magnetic piece 902 can be fixed on aluminum ring by etch-proof material and constitute by magnet ring 901.It should be noted that the magnetic field of magnet ring 901 is from top to bottom weakened gradually.In the present invention, magnet ring 901 may be configured as four roads, and the magnetic field of the top first magnet ring is the strongest, and the magnetic field of middle second and the 3rd road magnet ring is identical, and the magnetic field of bottom the 4th road magnet ring is the most weak.
Being provided with a spiral sluice way 5 in the cone of cylinder 3 lower half, this sluice way 5 is connected with water inlet 4.Sluice way 5 is rotated in cylinder by the bootable current of its spiral type.The water inlet water flow rotary direction A of sluice way 5 drain is contrary with the direction of rotation B of impeller 6.Spacing is left between sluice way 5 and impeller 6.
The above-mentioned structure for the present invention describes, and the existing operation principle to the present invention describes in detail, specific as follows:
Ore pulp is implemented have the magnetic separation of four aspects to work by the present invention: 1, ore pulp is broken up stirring, and 2, reciprocation cycle to the Iron concentrate that falls, 3, scouring to the Iron concentrate that falls, 4, the staged magnetic separation of magnetic separation system, it is described mainly for four road magnet rings here.
1, beating of ore pulp is spread stirring
Ore pulp enters threeway 7 from charging aperture 16, owing to being connected with the impeller 6 of high speed rotating in the rotating shaft 8 of threeway 7 socket, so ore pulp can be broken up stirring fully by impeller 6 between entrance cylinder 3, ensures ore pulp even concentration in cylinder 3 with this.The only even concentration of ore pulp, the Iron concentrate that can ensure in ore pulp is fully adsorbed by four road magnet rings.It should be noted that be still entrained with impurity in the Iron concentrate now adsorbed.
2, the reciprocation cycle to the Iron concentrate that falls
After four road magnet rings are to slurry abundant adsorption took a period of time of entrance, magnet ring 901 being accumulated more Iron concentrate, Iron concentrate falls under gravity voluntarily from magnet ring 901.Due to the high speed rotating of impeller 6, so a centrifugal force field can be produced in cylinder.Iron concentrate under falling and the impurity carried secretly are easily separated under the influence of centrifugal force.The meeting of heavier mass is got rid of around cylinder 3, the central core region being concentrated in cylinder 3 of lighter weight.It should be noted that in ore pulp, the heavier mass of Iron concentrate, the lighter weight of mud.Glided to the inwall of cone along cylindrical inwall so Iron concentrate gets rid of to four weekly assemblies, and it is carried out final election by mud elevated Hou You tetra-road magnet ring.This process is reciprocation cycle in cylinder 3.
3, the scouring to the Iron concentrate that falls
Because the direction of rotation A of the direction of rotation B of impeller 6 and water inlet current is contrary, so can form a shearing force between impeller 6 and sluice way 5.The Iron concentrate fallen along cylindrical inwall be snapped down to the inwall of cone time, can between impeller 6 and sluice way 5 formed suspended state, by the effect of shearing force, Iron concentrate can be swabbed.Iron concentrate after scouring, can be once again subjected to separate under the influence of centrifugal force.Heavier high grade iron fine powder is got rid of to surrounding, and the inwall along cone is snapped down to out concentrate mouth 2.Clean out lighter mud and be concentrated in central core region, be promoted to cylinder 3 top and enter overflow launder 11.Owing to the magnetic field of first magnet ring is the strongest, so mud is when entering overflow launder 11, mud can be adsorbed by first magnet ring containing more ferromagnetic microgranule, ensure the productivity of Iron concentrate with this.
4, the staged magnetic separation of magnetic separation system
Here illustrate mainly for four road magnet rings.The magnetic field intensity of four road magnet rings weakens from top to bottom gradually.First magnet ring is the strongest due to magnetic field, and position is the highest so the microgranule that in mud, magnetic force is stronger during for overflow carries out selection of winding up.Second and third, four road magnet rings essentially identical in the initial time service effect of magnetic separation, prolongation along with the working time, impact by position distribution and magnitude of field intensity, the working effect of above-mentioned three road magnet rings can be distinguished to some extent, second magnet ring becomes primary election, 3rd road magnet ring becomes selected one, and the 4th road magnet ring becomes selected two, it is achieved the staged magnetic separation to ore pulp.
In sum, the present invention by ore pulp is fully broken up, uniform stirring, reciprocation cycle, scouring and staged magnetic separation, high-grade fine powder of magnetite may finally be obtained, the productivity of Iron concentrate can also be improved simultaneously, save the input cost of equipment.
Claims (7)
1. a fine powder of magnetite grade elevator, including cylinder (3), driving device (15), actuating device (14), magnetic separation system (9), charging aperture (16), go out mine tailing mouth (10), go out concentrate mouth (2) and overflow launder (11), it is characterized in that: described cylinder (3) is supported by support (1), the axis setting perpendicular to the ground of cylinder (3), the first half of cylinder (3) is cylinder, lower half is cone, described cylinder is identical with the diameter of cone, bottom surface overlaps through, cylindrical end face is opening, it is formed around overflow launder (11) at opening, overflow launder (11) is connected with going out mine tailing mouth (10), the folder end of cone downwards with go out concentrate mouth (2) and be connected；The clutch end of described driving device (15) is connected with the power intake of agitating device by actuating device (14), described agitating device includes rotating shaft (8) and impeller (6), rotating shaft (8) is positioned at the shaft core position of cylinder (3), the upper end of rotating shaft (8) is stretched out cylinder (3) and is connected with actuating device (14) outward, the lower end of rotating shaft (8) is positioned at cylinder (3) and is socketed a threeway (7), threeway (7) includes two imports and an outlet, one of them inlet and outlet is coaxially through, the lower end of rotating shaft (8) is connected with impeller (6) after passing from this coaxial inlet and outlet, another import of threeway (7) is connected with the charging aperture (16) of cylinder (3) sidewall；Described impeller (6) is positioned at the intersection of cylinder (3) inner cylinder and cone；The sidewall of described cylinder (3) lower half cone is provided with water inlet (4), this water inlet (4) is connected with a spiral type sluice way (5) in cone, sluice way (5) can guide current to rotate in cylinder, and the drain direction of sluice way (5) is contrary with the direction of rotation of impeller (6)；Spacing is left between described sluice way (5) and impeller (6)；Described magnetic separation system (9) includes at least twice magnet ring (901), described magnet ring (901) interval is fixed on the cylinder inwall of cylinder (3) first half, the magnet ring (901) of the top is near cylindrical end face, and every one magnet ring (901) is made up of multiple magnetic piece (902) arranged at equal intervals；The magnetic field of described magnet ring (901) is from top to bottom weakened gradually.
2. fine powder of magnetite grade elevator as claimed in claim 1, it is characterized in that: described magnet ring (901) is four roads, the magnetic field of the top first magnet ring is the strongest, and the magnetic field of middle second and the 3rd road magnet ring is identical, and the magnetic field of bottom the 4th road magnet ring is the most weak.
3. fine powder of magnetite grade elevator as claimed in claim 1 or 2, it is characterised in that: described magnet ring (901) is that magnetic piece (902) is by constituting on the fixing aluminum ring of anticorrosive.
4. fine powder of magnetite grade elevator as claimed in claim 1 or 2, it is characterized in that: overflow launder (11) the top lid of the cylinder end face surrounding of described cylinder (3) first half is equipped with cover plate (12), the upper end of described rotating shaft (8) is run through be fixed on cover plate (12) by bearing block (13), and described driving device (15) is fixed on cover plate (12).
5. fine powder of magnetite grade elevator as claimed in claim 1, it is characterised in that: described driving device (15) is frequency conversion motor.
6. fine powder of magnetite grade elevator as claimed in claim 1, it is characterised in that: described actuating device (14) is belt pulley.
7. fine powder of magnetite grade elevator as claimed in claim 1, it is characterised in that: in described threeway (7) another import and described coaxial inlet and outlet vertically through.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410229232.4A CN104001620B (en) | 2014-05-21 | 2014-05-21 | Fine powder of magnetite grade elevator |
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| CN201410229232.4A CN104001620B (en) | 2014-05-21 | 2014-05-21 | Fine powder of magnetite grade elevator |
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| CN104001620A CN104001620A (en) | 2014-08-27 |
| CN104001620B true CN104001620B (en) | 2016-06-29 |
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| CN104384016A (en) * | 2014-11-30 | 2015-03-04 | 重庆市库格尔电子有限公司 | Magnetic powder screening device |
| CN106000628A (en) * | 2016-07-12 | 2016-10-12 | 陈勇 | Rotating flow tank type mineral separation device for magnetite in water |
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| CN109513522B (en) * | 2019-01-25 | 2021-04-16 | 王玉亮 | Ore dressing device for recovering iron from asbestos tailings |
| CN110354992A (en) * | 2019-05-10 | 2019-10-22 | 安徽省钗源苦荞麦制品有限责任公司 | A kind of scum removal device for livestock feed machining |
| CN110976085B (en) * | 2019-12-03 | 2022-02-11 | 太原红日强磁材有限公司 | Recovery device for defective magnetic material products |
| CN113058732A (en) * | 2021-03-20 | 2021-07-02 | 迁安市德泰工贸有限公司 | Gravity separator and mineral separation process thereof |
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| CN203842695U (en) * | 2014-05-21 | 2014-09-24 | 陕西大山机械有限公司 | Grade improving machine for magnetite fine powder |
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| GB1094646A (en) * | 1963-08-06 | 1967-12-13 | J & F Pool Ltd | Magnetic separator |
| GB1029002A (en) * | 1964-03-18 | 1966-05-11 | Insinooritoimisto Engineering | A method and apparatus used for continuous concentration of magnetically responsive solids from non-magnetically responsive solids in a fluid medium |
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