CN206304893U - A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic - Google Patents
A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic Download PDFInfo
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- CN206304893U CN206304893U CN201621359127.3U CN201621359127U CN206304893U CN 206304893 U CN206304893 U CN 206304893U CN 201621359127 U CN201621359127 U CN 201621359127U CN 206304893 U CN206304893 U CN 206304893U
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- intensity magnetic
- concentrator
- magnetic
- magnetic separator
- iron ore
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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Abstract
The utility model discloses a kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic, including cyclone（1）, concentrator（2）, the first intensity magnetic separator（3）With the second intensity magnetic separator（4）, the cyclone（1）Overfall and the concentrator（2）Feeding mouth connection, the cyclone（1）Sand setting outlet to first intensity magnetic separator（3）, the concentrator（2）Underflow outlet be communicated to second intensity magnetic separator（4）.The rate of recovery of the sorting unit iron of the red mixed type iron ore weakly magnetic tailingses of the magnetic is high, concentrator lectotype selection is small, equipment investment is few.
Description
Technical field
The utility model belongs to technical field of mineral processing, more particularly to a kind of red mixed type iron ore weakly magnetic tailingses of magnetic point
Screening device.
Background technology
The ore dressing plant of the red mixed type iron ore mine of China's magnetic is, it is necessary to grind grading overflow or weak（In）Mine tailing after magnetic separation enters
Row high intensity magnetic separation, to reclaim weak magnetism mineral therein.However, high intensity magnetic separation is required to feed ore concentration.But general grind grading
Overflow is weak（In）Tailings concentration after magnetic separation is relatively low（Mass concentration<20%）, do not reach concentration requirement of the high intensity magnetic separation to mine tailing.
If carrying out high intensity magnetic separation at low concentrations, the rate of recovery of microfine iron ore is low, and dry ore deposit treating capacity is low during table of equipment sets, it is necessary to increase
Standby number of units.
At present, domestic is usually all to be transported to grind grading overflow or weakly magnetic tailingses to select the large-scale concentrator outside factory to enter
Row concentration.Underflow density after to be concentrated is reached after 30-40% again through being pumped into selecting the factory carry out high intensity magnetic separation.Using this
Large-scale dense machine equipment carry out treatment there are problems that it is following：（1）Concentrator lectotype selection used is big, occupation area of equipment
Greatly, equipment investment is big；（2）Ore pulp conveys the energy to be consumed back and forth, increased and selects factory's operation cost；（3）The other iron of thickness grade wide
Ore deposit enters high intensity magnetic separation together, is unfavorable for the recovery of microfine iron ore, and especially the iron mineral recovering effect of p- 20 μm of grades compares
Difference, can reduce the rate of recovery of iron, influence mine economic profit.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to be mentioned and defect in background above technology, is carried
A kind of sorting of the red mixed type iron ore weakly magnetic tailingses of magnetic high for rate of recovery of iron, concentrator lectotype selection is small, equipment investment is few
Device.
In order to solve the above technical problems, the utility model proposes technical scheme be：
A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic, including cyclone, concentrator, the first intensity magnetic separator and
Second intensity magnetic separator, the overfall of the cyclone is connected with the feeding mouth of the concentrator, the sand setting outlet of the cyclone
First intensity magnetic separator is communicated to, the underflow outlet of the concentrator is communicated to second intensity magnetic separator.
The sorting unit of the red mixed type iron ore weakly magnetic tailingses of above-mentioned magnetic, it is preferred that second intensity magnetic separator is suitable
The intensity magnetic separator of particulate iron ore sorting.
The sorting unit of the red mixed type iron ore weakly magnetic tailingses of above-mentioned magnetic, it is preferred that the feeding mouth connection of the cyclone
One pan feeding pipeline, is provided with one first Pulp pump on the pan feeding pipeline, the underflow outlet of the concentrator by a pipeline with
The second intensity magnetic separator connection, is provided with one second Pulp pump on the pipeline that concentrator is connected with the second intensity magnetic separator.
Compared with prior art, the utility model has the advantage of：
（1）Concentrated using cyclone pre-classification for the red mixed type iron ore of magnetic, cyclone overflow is carried out through concentrator again
Concentration, according to the spillway discharge of ore-dressing technique requirement control cyclone（Fineness）, concentrator settling area is reduced more than 50%, if
Standby investment, floor space and capital cost are all greatly reduced, and the energy consumption of pulp conveying is also reduced, and reduces nearly 2/3.
（2）By the sand setting outlet of cyclone to the first intensity magnetic separator, the underflow outlet of concentrator is communicated to second
Intensity magnetic separator, carries out high magnetic separation to hydrocyclone sand and thickener underflow respectively, to concentrator concentration underflow using for micro-
The efficient intensity magnetic separator of particulate iron ore is sorted, and can effectively improve the rate of recovery of microfine iron ore.
（3）Cyclone overflow can be made to concentrate underflow through concentrator according to ore-dressing technique requirement control cyclone overflow fineness
The concentrate of high intensity magnetic separation need not be regrinded again, reduce influence of the secondary slime to follow-up sorting operation.
（4）The ore deposit amount concentrated into concentrator can be reduced using sorting unit of the present utility model, is thoroughly solved dense
Machine runs the problem of ore deposit.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the sorting unit of the red mixed type iron ore weakly magnetic tailingses of the utility model magnetic.
Marginal data：
1st, cyclone；2nd, concentrator；3rd, the first intensity magnetic separator；4th, the second intensity magnetic separator；5th, the first Pulp pump；6th, the second slag
Stock pump.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, is meticulously described, but protection domain of the present utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be that directly fixed, affixed, connection or connection connect on another element, or by the middle of other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limit this practicality
New protection domain.
Embodiment
As shown in figure 1, a kind of embodiment of the sorting unit of the red mixed type iron ore weakly magnetic tailingses of the utility model magnetic, this point
Screening device includes cyclone 1, concentrator 2, the first intensity magnetic separator 3 and the second intensity magnetic separator 4.The feeding mouth connection one of cyclone 1
Pan feeding pipeline, is provided with the first Pulp pump 5 on the pan feeding pipeline.The overfall of cyclone 1 is connected with the feeding mouth of concentrator 2,
The sand setting outlet of cyclone 1 to the first intensity magnetic separator 3, the underflow outlet of concentrator 2 passes through a pipeline and the second high intensity magnetic separation
Machine 4 is connected, and the second Pulp pump 6 is provided with the pipeline that concentrator 2 is connected with the second intensity magnetic separator 4.Second intensity magnetic separator 4 is
It is adapted to the efficient intensity magnetic separator of particulate iron ore sorting, and the first intensity magnetic separator 3 is then conventional intensity magnetic separator.The sorting unit is used
When, the weakly magnetic tailingses of the red mixed type iron ore of magnetic are revolved through carrying out pre-classification concentration in the feeding cyclone 1 of the first Pulp pump 5
Stream device overflow and sand setting.Sand setting obtains coarse-grain coarse ore concentrate and coarse grain mine tailing after being sorted through the first intensity magnetic separator 3.Cyclone overflow is through overflowing
Head piece flows automatically and is concentrated into concentrator 2, obtains thickener underflow.Thickener underflow enters suitable through the second Pulp pump 6
Second intensity magnetic separator 4 of particulate iron ore is sorted, and obtains fine concentrate and fine tailings.Cyclone 1 in the sorting unit
To the first intensity magnetic separator 3, the underflow outlet of concentrator 2 is communicated to the second intensity magnetic separator 4 to sand setting outlet, respectively to cyclone
Sand setting and thickener underflow carry out high magnetic separation, to concentrator concentration underflow using the efficient intensity magnetic separator for microfine iron ore
（Second intensity magnetic separator 4）Sorted, the rate of recovery of microfine iron ore can be effectively improved.The sorting unit can be according to ore-dressing technique
It is required that the spillway discharge of control cyclone 1（Fineness）, the settling area of concentrator 2 is reduced by more than 50%, equipment investment, floor space
All it is greatly reduced with capital cost, the energy consumption of pulp conveying is also reduced, reduces nearly 2/3；And can reduce and enter dense
The ore deposit amount of the concentration of machine 2, thoroughly solves the problems, such as that concentrator 2 runs ore deposit.
One application example of the sorting unit of the red mixed type iron ore weakly magnetic tailingses of the magnetic is as follows：
（1）The red mixed type iron ore of certain magnetic, low intensity magnetic separation tailings concentration is less than 20%, and intensity magnetic separator sorting requires feed ore concentration
35% ± 5%, all entered concentrator by former thinking whole weakly magnetic tailingses and concentrate, now it is concentrated to give using cyclone pre-classification
Yield 70% or so the, hydrocyclone sand of mass concentration 50%-60%；Cyclone overflow yield is 30% or so, and mass percent is dense
It is 8% or so to spend, granularity P95 20μm。
（2）Hydrocyclone sand（Yield 70% or so）Directly sorted using conventional intensity magnetic separator selecting in factory, this part
Granularity is relatively thick, and conventional intensity magnetic separator can obtain preferable separation index.
（3）Cyclone overflow（Yield 30% or so）, being concentrated from concentrator is flowed into, thickener underflow concentration reaches
30%-35% is transmitted back to through pump selects factory again, and the efficient intensity magnetic separator sorted using suitable microfine iron ore is sorted, the operation of iron
The rate of recovery increases by 12 percentage points or so.
（4）Required according to ore-dressing technique, it is P to control cyclone overflow fineness9520 μm, hydrocyclone sand is after high intensity magnetic separation
Need further to be finely ground to 95%-0.045mm（P8030μm）, and underflow high intensity magnetic separation is obtained after cyclone overflow is concentrated through concentrator again
To high intensity magnetic mineral degree of dissociation reach requirement, follow-up reverse flotation work can be directly entered, reduce whole ore deposit amounts enter when grinding produce
Raw overground and energy consumption is wasted.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (3)
1. the sorting unit of the red mixed type iron ore weakly magnetic tailingses of a kind of magnetic, it is characterised in that：Including cyclone（1）, concentrator
（2）, the first intensity magnetic separator（3）With the second intensity magnetic separator（4）, the cyclone（1）Overfall and the concentrator（2）Enter
Material mouth is connected, the cyclone（1）Sand setting outlet to first intensity magnetic separator（3）, the concentrator（2）Underflow
Outlet is to second intensity magnetic separator（4）.
2. the sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic according to claim 1, it is characterised in that：Described second
Intensity magnetic separator（4）To be adapted to the intensity magnetic separator of particulate iron ore sorting.
3. the sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic according to claim 1 and 2, it is characterised in that：It is described
Cyclone（1）Feeding mouth connect a pan feeding pipeline, one first Pulp pump is installed on the pan feeding pipeline（5）, it is described dense
Machine（2）Underflow outlet pass through a pipeline and second intensity magnetic separator（4）Connection, concentrator（2）With the second intensity magnetic separator（4）
One second Pulp pump is installed on the pipeline of connection（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359127.3U CN206304893U (en) | 2016-12-12 | 2016-12-12 | A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359127.3U CN206304893U (en) | 2016-12-12 | 2016-12-12 | A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic |
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| CN206304893U true CN206304893U (en) | 2017-07-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622635A (en) * | 2016-12-12 | 2017-05-10 | 长沙矿冶研究院有限责任公司 | Method and device for classification-concentration and classification-separation for weakly magnetic tailings of hybrid maghemite |
| CN112547327A (en) * | 2020-11-20 | 2021-03-26 | 湖南柿竹园有色金属有限责任公司 | High-efficient water treatment facilities |
| CN114345540A (en) * | 2021-12-09 | 2022-04-15 | 玉溪大红山矿业有限公司 | Low-grade hematite rough concentrate recleaning process |
-
2016
- 2016-12-12 CN CN201621359127.3U patent/CN206304893U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622635A (en) * | 2016-12-12 | 2017-05-10 | 长沙矿冶研究院有限责任公司 | Method and device for classification-concentration and classification-separation for weakly magnetic tailings of hybrid maghemite |
| CN112547327A (en) * | 2020-11-20 | 2021-03-26 | 湖南柿竹园有色金属有限责任公司 | High-efficient water treatment facilities |
| CN114345540A (en) * | 2021-12-09 | 2022-04-15 | 玉溪大红山矿业有限公司 | Low-grade hematite rough concentrate recleaning process |
| CN114345540B (en) * | 2021-12-09 | 2024-05-10 | 玉溪大红山矿业有限公司 | Low-grade hematite rough concentrate recleaning process |
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