CN104888944B - Magnetic system design method for sorting ultrafine-grained magnetic minerals and magnetic separation equipment thereof - Google Patents
Magnetic system design method for sorting ultrafine-grained magnetic minerals and magnetic separation equipment thereof Download PDFInfo
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- CN104888944B CN104888944B CN201510167892.9A CN201510167892A CN104888944B CN 104888944 B CN104888944 B CN 104888944B CN 201510167892 A CN201510167892 A CN 201510167892A CN 104888944 B CN104888944 B CN 104888944B
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Abstract
The invention belongs to the technical field of magnetic separation of magnetic minerals. A design method of magnetic system for sorting superfine grain magnetic mineral and magnetic separation equipment thereof are disclosed, wherein the construction basis of the magnetic system is a magnetic system disc with radius R, Archimedes spiral is made on the magnetic system disc by taking the center of the disc as a starting point and the outer edge of the disc as an end point, and a plurality of reinforced magnetic block groups are alternately arranged along the distribution line direction of the magnetic system according to N poles and S poles to form a single Archimedes spiral magnetic separation unit; the Archimedes spiral magnetic separation units are uniformly distributed on the whole magnetic system disc along the circumference to form a disc magnetic system, and the magnetic separation equipment is manufactured by the magnetic system design method.
Description
Technical field
The invention belongs to magnetic mineral magnetic separation technology field is and in particular to a kind of magnetic system of ultra-fine grade magnetic mineral sorting
Method for designing and its magnetic plant.
Background technology
Conventional magnetic separation normally behaves as the competition of magnetic force and the power such as gravity, inertia force, frictional force, wherein most importantly magnetic
Power is vied each other with gravity, and the magnetic force that magnetic mineral particles are subject in magnetic field is far longer than self gravitation, therefore, magnetic ore deposit
Composition granule is drawn to magnetic separator drum surface in the presence of magnetic force from ore pulp, and non magnetic ore granule sinks under gravity
Fall, thus complete assorting room.
Referring to Fig. 1, conventional magnetic separation processes coarse fraction magnetic mineral mineral grain and non magnetic ore numerical density schematic diagram.
The main competitiveness of the magnetic force that magnetic mineral particles are subject to is gravity, and buoyancy direction is consistent with magnetic force direction, advantageously forms magnetic
Reunite, because magnetic force is far longer than gravity, magnetic mineral particles are easy to move upwards near rotary drum；Rather than magnetic mineral particles
Suffered gravity direction is in opposite direction with buoyancy, because gravity is far longer than buoyancy, therefore coarse granule non magnetic ore is also easy
In sedimentation.
For ultra-fine grade mineral grain, its stressing conditions there occurs compared with big change.Magnetic mineral stressing conditions base
This is constant, remains magnetic force and has larger advantage and magnetic mineral is drawn to magnetic separator drum surface；For non magnetic ore
For, with the minimizing of mineral grain particle diameter, the difference between its suffered gravity and buoyancy is gradually reduced, and leads to mineral
Sedimentation more and more difficult, when this species diversity little to a certain extent when, non magnetic ore granule just assumes the shape of suspension in ore pulp
State, moves and is difficult to settle to the direction near magnetic separator rotary drum in the presence of disturbance flow field, i.e. the non magnetic ore deposit of ultra-fine grade
The direction of motion of thing is consistent with the direction of motion of magnetic mineral, moves to magnetic separator rotary drum in magnetic mineral particles and forms magnetic coagulation
During, and by the non magnetic ore granule parcel of ultra-fine grade and magnetic separator drum surface, due to the non magnetic ore deposit of ultra-fine grade
Thing is difficult to settle, and the non magnetic ore granule removing along along drum surface switching process in magnetic coagulation body will be again by magnetic coagulation
Body captures and is difficult to remove, and causes concentrate Quality Down.
Content of the invention
The purpose of the present invention is for above-mentioned problem and shortage, provide a kind of layering substantially, dust removal rate high
The magnetic system design method of ultra-fine grade magnetic mineral sorting and its magnetic plant.
For reaching above-mentioned purpose, adopted the technical scheme that:
A kind of magnetic system design method of ultra-fine grade magnetic mineral sorting, the basis that builds of this magnetic system is the magnetic of r for radius
Be disk, on this magnetic system disk with disc centre as starting point, disk outer do Archimedes spiral for terminal, in magnetic system disk
It is provided with the initial circle that concentric radius is r, between initial circle and magnetic system disk outer, the Archimedes spiral of distribution is
Wall scroll magnetic system distributing line；Several strengthening magnetic piece groups are arranged alternately arrangement along this magnetic system distributing line direction by n pole and s pole formed
Wall scroll Archimedes spiral magnetic separating unit；Archimedes spiral magnetic separating unit is evenly distributed along the periphery on whole magnetic system disk
Form disk magnetic system；On the circumference concentric with magnetic system disk, corresponding strengthening on adjacent two Archimedes spiral magnetic separating units
Magnetic piece group magnetic pole is contrary.
Described strengthening magnetic piece group is that several permanent magnet blocks are formed by n pole, s pole successively superposition placement relatively.
A kind of archimedes spiral disc formula magnetic plant using magnetic system design method described above, including frame, sets
Put sorting disk, being arranged on inside sorting disk and the disk magnetic system concentric with sorting disk and driving disk in frame top
The actuating unit of magnetic system rotation, is provided with feed pipe in the middle part of described sorting disk, is provided with radial direction jet water spout, gives outside feed pipe
Material inlet is offered on expects pipe, the sorting disk of material inlet both sides has been radially arranged concentrate discharge plate and to ore deposit deflector,
Described concentrate discharge plate end extends to sorting disk outer rim, is correspondingly arranged on mine tailing on the downside of described sorting disk outer rim
Groove and concentrate hopper.
Described actuating unit includes motor, decelerator, shaft coupling, bearing block and the driving circle being sequentially connected setting
The rotating shaft of disk magnetic system.
The middle part of described sorting disk is high compared with circumferential outer edge, and its gradient is 1 ° ~ 5 °.
On described concentrate stripper, opposite side corresponding with material inlet is provided with high pressure discharge water pipe, described concentrate position in storehouse
In the corresponding lower area of high pressure discharge water pipe.
Using technique scheme, acquired beneficial effect is:
The present invention adopts disk Archimedes spiral magnetic system to be located at flow of slurry bottom, so that the direction of motion of Magnetic Materials
Contrary with the ultra-fine grade non magnetic ore direction of motion, flow of slurry produces and is significantly layered, and bottom is the higher magnetic ore deposit of density
Thing, top is the less ultra-fine grade non magnetic ore of density, so that the application is for ultra-fine grade non magnetic ore
Removal effect is obvious.
Brief description
Fig. 1 is that conventional magnetic separation processes coarse fraction magnetic mineral mineral grain and non magnetic ore numerical density structural representation
Figure.
Fig. 2 is the structural representation of the Archimedes spiral on magnetic system disk.
Fig. 3 is the structural representation of wall scroll magnetic system distributing line.
Fig. 4 is the structural representation of wall scroll Archimedes spiral magnetic separating unit.
Fig. 5 is the structural representation of disk magnetic system.
Fig. 6 is the structural representation of sorting disk.
Fig. 7 is the structural representation of archimedes spiral disc formula magnetic plant.
In figure sequence number: 1 is magnetic system disk, 2 is Archimedes spiral, 3 is initial circle, 4 is strengthening magnetic piece group, 5 is frame,
6 is sorting disk, 7 is disk magnetic system, 8 is feed pipe, 9 is radial direction jet water spout, 10 is concentrate discharge plate, 11 is to ore deposit water conservancy diversion
Plate, 12 be tail-box, 13 be concentrate hopper, 14 be motor, 15 be decelerator, 16 be shaft coupling, 17 be bearing block, 18 be turn
Axle, 19 be high pressure discharge water pipe, 20 be magnetic mineral particles, 21 be non magnetic ore granule.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Embodiment one: referring to Fig. 2-Fig. 5, a kind of magnetic system design method of ultra-fine grade magnetic mineral sorting of the present invention, should
Magnetic system builds the magnetic system disk 1 for radius for r for the basis, first on this magnetic system disk 1 with disc centre as starting point, outside disk
Along doing Archimedes spiral 2 for terminal, the initial circle 3 that concentric radius is r is provided with magnetic system disk 1, initiate circle 3 with
Between magnetic system disk 1 outer, the Archimedes spiral of distribution is wall scroll magnetic system distributing line；By several strengthening magnetic piece groups 4 along this magnetic
To be distributing line direction be arranged alternately arrangement by n pole and s pole forms wall scroll Archimedes spiral magnetic separating unit, described strengthening magnetic piece
Group 4 is that several permanent magnet blocks are formed by n pole, s pole successively superposition placement relatively；By Archimedes spiral magnetic separating unit whole
Formation disk magnetic system is evenly distributed along the periphery on magnetic system disk 1；On the circumference concentric with magnetic system disk 1, adjacent two A Ji meter
On moral helical magnetic separating unit, corresponding strengthening magnetic piece group magnetic pole is contrary.
Embodiment two: referring to Fig. 2-Fig. 7, the Archimedes spiral of a kind of magnetic system design method described in utilization embodiment one
Disc type magnetic plant, the sorting disk 6 including frame 5, being arranged on frame 5 top, be arranged on sorting disk 6 inner side and with sorting
The concentric disk magnetic system of disk 67 and the actuating unit driving disk magnetic system 7 rotation, be provided with the middle part of described sorting disk 6 to
Expects pipe 8, is provided with radial direction jet water spout 9 outside feed pipe 8, feed pipe 8 offers material inlet, the sorting disk 6 of material inlet both sides
On be radially arranged concentrate discharge plate 10 and give ore deposit deflector 11, described concentrate discharge plate 10 end extend to sorting circle
Disk 6 outer rim, is correspondingly arranged on tail-box 12 and concentrate hopper 13 on the downside of described sorting disk 6 outer rim, described concentrate stripper
On 10, opposite side corresponding with material inlet is provided with high pressure discharge water pipe 19, and it is right that described concentrate store 13 is located at high pressure discharge water pipe 19
The lower area answered.
Described actuating unit includes being sequentially connected the motor 14 of setting, decelerator 15, shaft coupling 16, bearing block 17
With the rotating shaft 18 driving disk magnetic system 7, described sorts the middle part of disk 6 compared with circumferential outer edge height, and its gradient is 1 ° ~ 5 °.
The operation principle of the present embodiment is: ore pulp feeds from sorting disc centre mineral-feeding pipe, along to ore deposit deflector and concentrate
The sector region unloading the formation of ore deposit baffle plate flows into sorting disk, because the Archimedes spiral disk of motion is close in sorting disk bottom
The flow of slurry of magnetic system, therefore sector region is layered rapidly, the magnetic coagulation body that flow of slurry bottom is formed for magnetic mineral, ultra-fine grade
Non magnetic ore floats on flow of slurry top layer, and in the presence of circumference cleans impact water, ultra-fine grade non magnetic ore is radially
Enter tail-box with impact current；The magnetic coagulation body of flow of slurry bottom is similar in the Archimedes spiral magnetic system effect lower edge of motion
In the continuous flip-flop movement in track of Archimedes spiral, the reunion-loose-upset of reuniting again under alternating poles effect of magnetic coagulation body
In motor process, the ultra-fine grade non magnetic ore being mingled with constantly is removed from magnetic coagulation body, in the work of radial impact water
Flow into tail-box with lower edge sorting sector；Magnetic mineral is along the continuous flip-flop movement in track similar to Archimedes spiral to essence
Near ore deposit discharge plate, under the effect of concentrate discharging impacting with high pressure water, enter concentrate hopper.
Conventional drum magnetic separator magnetic system is normally at flow of slurry top, therefore for the superfine granule floating on flow of slurry top
Level argillization non magnetic ore removing is extremely difficult.The method have the characteristics that disk Archimedes spiral magnetic system is located at flow of slurry bottom
Portion, so that the direction of motion of Magnetic Materials is contrary with the ultra-fine grade non magnetic ore direction of motion, flow of slurry produces significantly
Layering, bottom is the higher magnetic mineral of density, and top is the less ultra-fine grade non magnetic ore of density, the therefore present invention couple
Obvious in the removal effect of ultra-fine grade non magnetic ore.
Claims (6)
1. a kind of magnetic system design method of ultra-fine grade magnetic mineral sorting is it is characterised in that the structure basis of this magnetic system is half
Footpath be r magnetic system disk, on this magnetic system disk with disc centre as starting point, disk outer do Archimedes spiral for terminal,
The initial circle that concentric radius is r is provided with magnetic system disk, initiates the A Ji of distribution between circle and magnetic system disk outer
Mead helical is wall scroll magnetic system distributing line；Several strengthening magnetic piece groups are pressed n pole along this magnetic system distributing line direction and s pole replaces row
Cloth arrangement forms wall scroll Archimedes spiral magnetic separating unit；By Archimedes spiral magnetic separating unit, on whole magnetic system disk, edge is round
Week, uniformly arrangement formed disk magnetic system；On the circumference concentric with magnetic system disk, on adjacent two Archimedes spiral magnetic separating units
Corresponding strengthening magnetic piece group magnetic pole is contrary.
2. the magnetic system design method of ultra-fine grade magnetic mineral sorting according to claim 1 is it is characterised in that described
Strengthening magnetic piece group is that several permanent magnet blocks are formed by n pole, s pole successively superposition placement relatively.
3. the archimedes spiral disc formula magnetic plant of a kind of magnetic system design method described in utilization claim 1 or 2, its feature
It is, including frame, be arranged on sorting disk, being arranged on inside sorting disk and the circle concentric with sorting disk of frame top
Disk magnetic system and the actuating unit driving the rotation of disk magnetic system, are provided with feed pipe, outside feed pipe in the middle part of described sorting disk
It is provided with radial direction jet water spout, feed pipe offers material inlet, concentrate discharge plate has been radially arranged on sorting disk and to ore deposit
Deflector, concentrate discharge plate and the both sides being located at material inlet to ore deposit deflector respectively, described concentrate discharge plate end is prolonged
Extend sorting disk outer rim, on the downside of described sorting disk outer rim, be correspondingly arranged on tail-box and concentrate hopper.
4. archimedes spiral disc formula magnetic plant according to claim 3 is it is characterised in that described actuating unit bag
Include motor, decelerator, shaft coupling, bearing block and the rotating shaft driving disk magnetic system being sequentially connected setting.
5. archimedes spiral disc formula magnetic plant according to claim 3 is it is characterised in that described sorting disk
Middle part is high compared with circumferential outer edge, and its gradient is 1 ° ~ 5 °.
6. archimedes spiral disc formula magnetic plant according to claim 3 is it is characterised in that described concentrate discharging keeps off
On plate, opposite side corresponding with material inlet is provided with high pressure discharge water pipe, described concentrate hopper be located at high pressure discharge water pipe corresponding under
Portion region.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510167892.9A CN104888944B (en) | 2015-04-10 | 2015-04-10 | Magnetic system design method for sorting ultrafine-grained magnetic minerals and magnetic separation equipment thereof |
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| CN201510167892.9A CN104888944B (en) | 2015-04-10 | 2015-04-10 | Magnetic system design method for sorting ultrafine-grained magnetic minerals and magnetic separation equipment thereof |
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| CN104888944B true CN104888944B (en) | 2017-01-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0083444A1 (en) * | 1981-12-29 | 1983-07-13 | Firma Bruno M. Klarner | Magnetic liquid treatment device |
| DE29612876U1 (en) * | 1996-07-25 | 1996-09-26 | Kesslau Ruschke Geb Jenkner Ma | Device for influencing force fields or force field currents |
| DE10038296A1 (en) * | 2000-08-05 | 2002-02-14 | Innovent Ev Technologieentwicklung | Absolute angle measurement device has a magnetic pattern made up or two or more periodic magnetic patterns in the form of Archimedes spirals that allow very precise measurements to be made by measurement of phase difference |
| RU2206945C1 (en) * | 2002-03-29 | 2003-06-20 | Громаков Юрий Алексеевич | Device for user protection from electromagnetic radiation of radiophone |
-
2015
- 2015-04-10 CN CN201510167892.9A patent/CN104888944B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0083444A1 (en) * | 1981-12-29 | 1983-07-13 | Firma Bruno M. Klarner | Magnetic liquid treatment device |
| DE29612876U1 (en) * | 1996-07-25 | 1996-09-26 | Kesslau Ruschke Geb Jenkner Ma | Device for influencing force fields or force field currents |
| DE10038296A1 (en) * | 2000-08-05 | 2002-02-14 | Innovent Ev Technologieentwicklung | Absolute angle measurement device has a magnetic pattern made up or two or more periodic magnetic patterns in the form of Archimedes spirals that allow very precise measurements to be made by measurement of phase difference |
| RU2206945C1 (en) * | 2002-03-29 | 2003-06-20 | Громаков Юрий Алексеевич | Device for user protection from electromagnetic radiation of radiophone |
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