CN104226474B - A kind of following current preliminary election spiral classifier - Google Patents
A kind of following current preliminary election spiral classifier Download PDFInfo
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- CN104226474B CN104226474B CN201410436947.7A CN201410436947A CN104226474B CN 104226474 B CN104226474 B CN 104226474B CN 201410436947 A CN201410436947 A CN 201410436947A CN 104226474 B CN104226474 B CN 104226474B
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- ore
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- preliminary election
- following current
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- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 38
- 239000011707 mineral Substances 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000012141 concentrate Substances 0.000 claims abstract description 17
- 238000007885 magnetic separation Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 239000004576 sand Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- 238000010494 dissociation reaction Methods 0.000 description 3
- 230000005593 dissociations Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008278 dynamic mechanism Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of following current preliminary election spiral classifier, be to be made up of following current magnetic separation preliminary election machine, spiral classifier organic assembling.Following current magnetic separation preliminary election machine be by feed port (1), to ore deposit case (2), frame (3), sort groove (4), ore discharge valve (5), ore discharge pipe (6), overflow pipe (7), magnetic system (8), cylinder (9), concentrate hopper (10), wash tub pipe (11), cylinder drive mechanism are constituted；Spiral classifier is made up of hoisting frame (12), hoisting mechanism (13), spiral (14), log washer (15), screw drives mechanism, screw support, overfall (19)；Overflow pipe (7), ore discharge pipe (6) are linked in log washer (15).The present invention have simple in construction, use, remove and install conveniently, widely used advantage, qualified magnetic mineral can be selected in advance, be particularly suitable for preliminary election and the grading of the Ore of the magnetic-bearing mineral in ore dressing plant, have improve classification efficiency, avoid magnetic mineral overground, reduce ore dressing energy consumption, improve mineral recovery rate function.
Description
Technical field
The present invention relates to the magnetic separation classifying equipoment of a kind of mine concentrator, replace spiral classifier in order to
Magnetic iron ore selects preliminary election and the grading of the magnetic-bearing mineral of factory, can avoid monomer dissociation
The generation of the overground phenomenon of magnetic mineral, thus improve classification efficiency, reduce ore dressing energy consumption, raising
Mineral recovery rate.
Background technology
In ore dressing plant, for ensureing that mineral separate with stone-like pulse, standing have spiral classifier.Due to
Spiral classifier utilizes ore particle to settle in aqueous medium to carry out classification, and spiral classifier is using
In there are the following problems: the proportion of magnetic ore particle be more than gangue mineral, when granularity close to time, magnetic
Property mineral ore particle sedimentation velocity more than gangue mineral granule, therefore, the magnetic of monomer dissociation
Mineral ore particle settles soon in classification process, it is impossible to discharge from overflow in time, and enters and divide
In level machine sand return, enter ore mill together with the intergrowth of other magnetic minerals and gangue mineral again
Mill, not only classification efficiency reduces, and causes the most dissociated magnetic mineral ore particle to grind meticulous
(the most overground phenomenon), wastes ore grinding energy consumption, and meticulous magnetic ore particle is unfavorable sorts recovery, fall
The low response rate of magnetic mineral.
There is overground phenomenon in ferromagnetism iron mineral, although useful magnetic iron ore mineral disaggregation is abundant,
But also can produce the more minuteness particle being difficult to sort, " cross and pulverize " phenomenon i.e. occurs.Cross
Pulverize not only harm and sort process, reduce concentrate grade and the response rate, and owing to doing
" unnecessary pulverizing ", adds crushing process and sorts the consumption of process, making beneficiation cost
Increase.Visible, it is necessary for controlling to avoid the overground of valuable mineral in grind grading loop.Want
Reach to control to avoid the purpose that in grind grading loop, valuable mineral is overground, idea must make those
Big density small particle, the most dissociated valuable mineral granule are not blended into the sand return of spiral classifier
In.
Summary of the invention
The purpose of the present invention is exactly according to above-mentioned the deficiencies in the prior art, and provides one to carry
High-grade efficiency, avoid that magnetic mineral is overground, reduce ore dressing energy consumption, improve mineral recovery rate
Downflow type magnetic separation preliminary election grader.
For realizing the above-mentioned purpose of the present invention, one following current preliminary election spiral classifier of the present invention uses
Techniques below scheme:
One following current preliminary election spiral classifier of the present invention, it is by following current magnetic separation preliminary election machine, spiral
Grader organic assembling is constituted:
Described following current magnetic separation preliminary election machine be by feed port, to ore deposit case, frame, sort groove, row
Ore deposit valve, ore discharge pipe, overflow pipe, magnetic system, cylinder, concentrate hopper, wash tub pipe, cylinder drive
Dynamic Mechanism Combination is constituted；Feed port, connect to ore deposit case and be arranged in frame；Sort groove position
In to the downside of ore deposit case and accept the material provided to ore deposit case；The described groove that sorts uses downflow type
Structure designs, and sorts groove at the log washer of spiral classifier equipped with overflow pipe, sorts bottom land
Portion is equipped with ore discharge pipe, equipped with ore discharge valve on ore discharge pipe；Cylinder is positioned at and sorts the above of groove and pacify
Being contained in frame, cylinder is connected with cylinder drive mechanism built with magnetic system, cylinder, and cylinder exists
Under cylinder drive mechanism effect, forward rotating with ore pulp flow direction, cylinder leaves and sorts groove
Equipped with concentrate hopper at mineral slurry level, above concentrate hopper, fill wash tub pipe.
Described spiral classifier is driven by hoisting frame, hoisting mechanism, spiral, log washer, spiral
The combination of motivation structure, screw support, overfall is constituted；Together with hoisting frame is fixing with frame, promote
Mechanism is arranged on hoisting frame, and the hypomere of hoisting frame has screw support；Spiral is arranged on log washer
In, wherein spiral lower end is positioned on screw support, and spiral upper end is connected with screw drives mechanism；
Described spiral rotates under screw drives mechanism acts on, and described hoisting mechanism can pass through spiral
Bearing, makes spiral lower end lift, thus scalable rotating load.Log washer lower end is provided with overflow
Mouthful.
The described overflow pipe of following current magnetic separation preliminary election machine, ore discharge pipe are linked into described spiral classifier
Log washer in.
Described spiral can be one, it is also possible to is two, can be single-screw, it is also possible to
It it is Double helix.
Described following current magnetic separation preliminary election machine is set up in parallel with described spiral classifier.This mode
Layout, it is ensured that floor space is minimum.
In use, material to be fractionated is by feed port for one following current preliminary election spiral classifier of the present invention
Feed to ore deposit case, then feed and sort groove, ore discharge valve scalable ore discharge amount and the overflow of overflow pipe
Amount, magnetic mineral, under magnetic system magneticaction, is inhaled in cylinder, and cylinder flows to forward with ore pulp
Rotate, magnetic material is taken away ore pulp, and with wash tub pipe, concentrate is poured concentrate hopper and collect.
Through sorting the non magnetic ore particle of groove, or magnetic and non magnetic ore intergrowth are mainly by ore discharge pipe
Entering log washer, part enters log washer from overflow pipe.In log washer, rough grain settles and is turning
Under dynamic screw action, return into log washer upper end as sand return.Sand return needs to regrind.Log washer
The sedimentation of middle particulate ore particle is slow, discharges from overfall as overflow, for next operation.
One following current preliminary election spiral classifier simple in construction of the present invention, flexible for installation, can be in advance
Select qualified magnetic mineral, improve classification efficiency, avoid that magnetic mineral is overground, reduce ore dressing
Energy consumption, the raising magnetic mineral response rate.
After one following current preliminary election spiral classifier of the present invention uses technique scheme, have following
Beneficial effect:
(1) it is widely used, can be applicable to the graded operation that the magnetic mineral in ore dressing plant reclaims,
Or nonmetallic ore is except the graded operation of ferrum；
(2) following current preliminary election spiral classifier is installed simple, saving of work and time；
(3) qualified magnetic mineral can be selected in advance, improve classification efficiency, avoid magnetic
Mineral are overground, reduce ore dressing energy consumption, improve the magnetic mineral response rate；
(4) can effectively reduce spiral classifier sand return amount, reduce the load of grinding operation.
Accompanying drawing explanation
Fig. 1 is the positive elevational schematic view of the present invention a kind of following current preliminary election spiral classifier；
Fig. 2 is one following current preliminary election spiral classifier floor map of the present invention.
Fig. 3 is one following current preliminary election spiral classifier side elevation schematic diagram of the present invention.
Detailed description of the invention
For further describing the present invention, below in conjunction with the accompanying drawings to one following current preliminary election spiral of the present invention
Grader is described in further detail.
The positive elevational schematic view of the present invention a kind of following current preliminary election spiral classifier as shown in Figure 1
And combine Fig. 2 and Fig. 3 and find out, one following current preliminary election spiral classifier of the present invention, it is by suitable
Stream magnetic separation preliminary election machine, spiral classifier organic assembling are constituted:
Described following current magnetic separation preliminary election machine be by feed port 1, to ore deposit case 2, frame 3, sort
Groove 4, ore discharge valve 5, ore discharge pipe 6, overflow pipe 7, magnetic system 8, cylinder 9, concentrate hopper 10,
The combination of wash tub pipe 11, cylinder drive mechanism 17 is constituted；Feed port 1, connect to ore deposit case 2
It is installed along with in frame 3；Sort groove 4 be positioned at the downside to ore deposit case 2 and accept to ore deposit case 2
The material be given；The described groove 4 that sorts uses downflow type structure to design, and sorts groove 4 near spiral shell
Equipped with overflow pipe 7 at the log washer 15 of rotation grader, sort equipped with ore discharge pipe 6 bottom groove 4,
Equipped with ore discharge valve 5 on ore discharge pipe 6；Cylinder 9 is positioned at and sorts the above of groove 4 and be arranged on machine
On frame 3, cylinder 9 is connected with cylinder drive mechanism 17 built with magnetic system 8, cylinder 9,
Cylinder 9, under cylinder drive mechanism 17 acts on, forward rotates with ore pulp flow direction, cylinder
9 leave at the mineral slurry level sorting groove 4 equipped with concentrate hopper 10, fill flushing water above concentrate hopper 10
Pipe 11.
Described spiral classifier is by hoisting frame 12, hoisting mechanism 13, spiral 14, log washer
15, screw drives mechanism 16, screw support 18, overfall 19 combination are constituted；Hoisting frame
12 fixing with frame 3 together with, hoisting mechanism 13 is arranged on hoisting frame 12, hoisting frame 12
Hypomere have screw support 18；Spiral 14 is arranged in log washer 15, wherein spiral 14 times
End is positioned on screw support 18, and spiral 14 upper end is connected with screw drives mechanism 16；Spiral shell
Rotation 14 rotates under screw drives mechanism 16 acts on；Hoisting mechanism 13 can pass through screw support
18, make spiral 14 lower end lift, thus scalable spiral 14 rotating load.Log washer 15
Lower end is provided with overfall 19；
The described overflow pipe 7 of following current magnetic separation preliminary election machine, ore discharge pipe 6 are linked into described spiral and divide
In the log washer 15 of level machine.
The quantity of described spiral 14 is two；Described spiral 14 uses single coil configuration.
Described following current magnetic separation preliminary election machine is set up in parallel with described spiral classifier.
In use, material to be fractionated is by feed port for one following current preliminary election spiral classifier of the present invention
1 feeds to ore deposit case 2, then feeds and sort groove 4, the row of ore discharge valve 5 scalable ore discharge pipe 6
Ore deposit amount and the spillway discharge of overflow pipe 7, magnetic mineral, under magnetic system 8 magneticaction, is inhaled in circle
Cylinder 9, cylinder 9 and ore pulp flow to forward rotate, and magnetic material takes away ore pulp, and with rinsing
Concentrate is poured concentrate hopper 10 and collects by water pipe 11.Through sorting the non magnetic ore particle of groove 4, or
Magnetic and non magnetic ore intergrowth are mainly entered log washer 15 by ore discharge pipe 6, and part is from overflowing
Flow tube 7 enters log washer 15.The sedimentation of rough grain the spiral 14 in rotation in log washer 15
Under effect, return into log washer 15 upper end as sand return.Sand return needs to regrind.In log washer 15
The sedimentation of particulate ore particle is slow, discharges from overfall 19 as overflow, for next operation.
One following current preliminary election spiral classifier of the present invention is installed simple, flexible, can meet ore dressing
The graded operation of factory's difference occasion, can select qualified magnetic mineral in advance, improves classification effect
Rate, avoid magnetic mineral overground, reduce ore dressing energy consumption, improve the magnetic mineral response rate.
One following current preliminary election spiral classifier of the present invention is in certain magnetite separation factory designs
Application, in order to replace former spiral classifier, preliminary election, grading effect are the best.To ore deposit ferrum product
Position 31.26% in the case of, by the preliminary election of the present invention a kind of following current preliminary election spiral classifier,
Classification, can obtain Iron grade 65.6%, the iron ore concentrate of productivity 23.25% in advance, not only avoid
The generation of the overground phenomenon of Magnet mineral of monomer dissociation, and greatly reduce ore grinding and make
The load of industry, makes whole ore dressing plant energy consumption reduce more than 18.5%, the comprehensive iron ore concentrate in ore dressing plant
The response rate also brought up to 83.5% by 81.3%, achieve purpose less than technique effect.
Claims (2)
1. a following current preliminary election spiral classifier, it is characterised in that it is by following current magnetic separation preliminary election
Machine, spiral classifier organic assembling are constituted:
Described following current magnetic separation preliminary election machine be by feed port (1), to ore deposit case (2), frame (3),
Sort groove (4), ore discharge valve (5), ore discharge pipe (6), overflow pipe (7), magnetic system (8),
Cylinder (9), concentrate hopper (10), wash tub pipe (11), cylinder drive mechanism (17) combine
Constitute；Feed port (1), connect to ore deposit case (2) and be arranged in frame (3)；Sort
Groove (4) is positioned at the downside to ore deposit case (2) and accepts the material provided to ore deposit case (2)；Institute
The groove (4) that sorts stated uses the design of downflow type structure, sorts groove (4) near spiral classifier
Log washer (15) place equipped with overflow pipe (7), sort groove (4) bottom equipped with ore discharge pipe (6),
Equipped with ore discharge valve (5) on ore discharge pipe (6)；Cylinder (9) is positioned at and sorts the upper of groove (4)
Face is also arranged in frame (3), cylinder (9) built with magnetic system (8), cylinder (9) with
Cylinder drive mechanism (17) is connected, and cylinder (9) is mutually clockwise with ore pulp flow direction dynamic,
Cylinder (9) leaves at the mineral slurry level sorting groove (4) equipped with concentrate hopper (10), concentrate hopper (10)
Fill wash tub pipe (11) above；
Described spiral classifier by hoisting frame (12), hoisting mechanism (13), spiral (14),
Log washer (15), screw drives mechanism (16), screw support (18), overfall (19)
Combination is constituted；Together with hoisting frame (12) is fixing with frame (3), hoisting mechanism (13) is pacified
Being contained on hoisting frame (12), the hypomere of hoisting frame (12) has screw support (18)；Spiral
(14) being arranged in log washer (15), wherein spiral (14) lower end is positioned on screw support (18)
On, spiral (14) upper end is connected with screw drives mechanism (16)；Log washer (15) lower end
It is provided with overfall (19)；
The described overflow pipe (7) of following current magnetic separation preliminary election machine, ore discharge pipe (6) are linked into described
In the log washer (15) of spiral classifier；
Described following current magnetic separation preliminary election machine is set up in parallel with described spiral classifier.
2. a kind of following current preliminary election spiral classifier as claimed in claim 1, it is characterised in that:
Described spiral (14) can be one, it is also possible to is two；Described spiral (14) is
One in single-screw or Double helix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436947.7A CN104226474B (en) | 2014-09-01 | 2014-09-01 | A kind of following current preliminary election spiral classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436947.7A CN104226474B (en) | 2014-09-01 | 2014-09-01 | A kind of following current preliminary election spiral classifier |
Publications (2)
| Publication Number | Publication Date |
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| CN104226474A CN104226474A (en) | 2014-12-24 |
| CN104226474B true CN104226474B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410436947.7A Expired - Fee Related CN104226474B (en) | 2014-09-01 | 2014-09-01 | A kind of following current preliminary election spiral classifier |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1527070A (en) * | 1923-10-03 | 1925-02-17 | Jr Orrin B Peck | Magnetic centrifugal separator |
| ZA200607875B (en) * | 2005-09-22 | 2008-05-28 | Magnapower Proprietary Ltd | Dewatering of aqueous magnetite concentrates |
| CN101032708A (en) * | 2006-03-11 | 2007-09-12 | 山东金岭铁矿 | Magnetite wet type pre-selecting method |
| CN101569872A (en) * | 2009-06-02 | 2009-11-04 | 沈阳选矿机械研究所 | High-weir type double spiral classifier |
| CN102225363A (en) * | 2011-04-08 | 2011-10-26 | 中钢集团马鞍山矿山研究院有限公司 | High-efficiency coarse grain wet type permanent preselecting and waste-throwing magnetic separator |
| CN202725302U (en) * | 2012-06-13 | 2013-02-13 | 马钢(集团)控股有限公司 | Novel ore milling and classifying device |
| CN103041911B (en) * | 2013-01-11 | 2015-02-04 | 武汉理工大学 | Quality classifying and grading process for mineral separation and grinding |
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2014
- 2014-09-01 CN CN201410436947.7A patent/CN104226474B/en not_active Expired - Fee Related
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Granted publication date: 20161005 Termination date: 20180901 |