CN105170310A - Large crystalline flake graphite separation system and method for flotation of crystalline flake graphite by large crystalline flake graphite separation system - Google Patents
Large crystalline flake graphite separation system and method for flotation of crystalline flake graphite by large crystalline flake graphite separation system Download PDFInfo
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Abstract
The invention discloses a large crystalline flake graphite separation system and a method for flotation of crystalline flake graphite by the large crystalline flake graphite separation system, belongs to a crystalline flake graphite flotation method, in particular, relates to the large crystalline flake graphite separation system and the crystalline flake graphite flotation method, and aims to solve the problem of low yield of large crystalline flake graphite caused by the damage of the large crystalline flake graphite, satisfying the purity requirement, after the ore grinding and the flotation due to incapability of realizing timely separation of the large crystalline flake graphite in a traditional crystalline flake graphite flotation method. The large crystalline flake graphite separation system comprises a stirring barrel, a conveying pump, an electromagnetic vibration vortex sieve, a concentrator, a concentration underflow pump, a collecting pool and a water return pump. The method comprises the following steps: concentrates of the large crystalline flake graphite with purity not lower than 95% are fed into a large crystalline flake graphite separation system, and are diluted by the stirring barrel; the large crystalline flake graphite is separated by using the electromagnetic vibration vortex sieve, and is concentrated by using the concentrator; and the concentrated concentrates are fed into the next step of ore grinding for continuous flotation by the concentration underflow pump. The system and the method are mainly used for separating the large crystalline flake graphite.
Description
Technical field
The invention belongs to crystalline flake graphite method for floating, be specifically related to a kind of flaky graphite piece-rate system and crystalline flake graphite method for floating.
Background technology
Graphite all plays a part very important in numerous industries such as national defence, metallurgy, machinery, chemical industry, aerospace electron, refractory material.Wherein, the flaky graphite (+100 order) in Scaly graphite especially has very high using value, such as the raw material of expansible graphite, for lithium ion battery negative raw material etc.Therefore, the large scale of graphite is protected to be the particular/special requirement that graphite ore dressing sorts relative to other mineral.Although crystalline flake graphite has good native floatability, it can be made to be separated with gangue mineral by floatation, but in order to improve the rate of recovery of flaky graphite further, need according to raw ore mineral composition and graphite the occurrence status in ore, necessary adjustment is carried out, to reaching desirable sorting result to traditional ore-dressing technique.
The method for separating that current domestic crystalline flake graphite is conventional is floatation.Adopt general technology be: graphite ore-roughly grind-roughly select, once purging selection, repeatedly regrind, repeatedly selected.Graphite ore is after the ore grinding, flotation of certain number of times, and graphite purity reaches 90%, but does not reach final products 95% purity requirement, should proceed ore grinding, flotation.Now, if the flaky graphite in concentrate is separated, its purity reaches more than 95%, the flaky graphite met the demands carries out grinding flotation again, large scale will certainly be destroyed, and therefore should have a flaky graphite piece-rate system, be separated by large scale in time, the part that residue does not reach purity requirement is carried out grinding flotation again, improves purity further.
Summary of the invention
The object of the invention is to solve the timely separation that existing crystalline flake graphite floatation cannot realize flaky graphite, the flaky graphite making to meet purity requirement is again through ore grinding, flotation and being destroyed, cause the problem that flaky graphite productive rate is low, and a kind of flaky graphite piece-rate system is provided and utilizes it to carry out the method for flotation to crystalline flake graphite.
A kind of flaky graphite piece-rate system comprises agitator, delivery pump, electromagnetism vibrancy vortex sieve, thickener, concentrated underflow pump, collecting pit and back water pump; At electromagnetism vibrancy vortex sieve, charging aperture liquid outlet and flaky graphite outlet are set; Described agitator is communicated with electromagnetism vibrancy vortex sieve through charging aperture by delivery pump, electromagnetism vibrancy vortex sieve is communicated with thickener through liquid outlet, thickener is provided with the outlet of concentrated underflow and primary water outlet, described thickener is communicated with collecting pit through primary water outlet, arranges concentrated underflow pump in the concentrated underflow exit of thickener; Described collecting pit is communicated with agitator by back water pump.
A kind of flaky graphite piece-rate system that utilizes carries out the method for flotation to crystalline flake graphite, specifically complete according to the following steps: first conventional flotation is carried out to graphite raw ore, and the purity of flaky graphite in the selected separated product of Real-Time Monitoring, purity >=95% of flaky graphite to the concentrate that n-th selected separation obtains, the concentrate now obtained feeds in the agitator of flaky graphite piece-rate system, and water is added in agitator, be transported in electromagnetism vibrancy vortex sieve by delivery pump after stirring and evenly mixing, be separated in electromagnetism vibrancy vortex sieve, flaky graphite is exported by flaky graphite and discharges, the lower residual concentrate liquid of electromagnetism vibrancy vortex sieve sieve feeds in thickener through liquid outlet, residual concentrate liquid concentrates at thickener, and by concentrated underflow pump, concentrated concentrate is fed next step ore grinding, carry out after ore grinding (n+1)th time selected, in thickener, the concentrated primary water obtained is exported by primary water and enters in collecting pit, and the primary water of the collection of collecting pit is for subsequent use as the use water of agitator, utilizes back water pump to be sent in agitator by the primary water of the collection of collecting pit.
Advantage of the present invention: one, the flaky graphite that purity has met the demands can be separated by the flaky graphite piece-rate system of the present invention's design in time, and separative efficiency is high; Two, the flaky graphite separated separately, no longer carries out ore grinding and flotation, makes flaky graphite obtain protection; Three, the present invention is by being separated flaky graphite in time, improves the productive rate of flaky graphite.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flaky graphite piece-rate system described in detailed description of the invention one; In figure: A is n-th selected concentrate obtained, and B is water, and C is flaky graphite;
Fig. 2 is embodiment 1 operating process schematic diagram;
Fig. 3 is embodiment 3 operating process schematic diagram; In figure, concentrate C is flaky graphite, and concentrate D is Fine particle processing.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1, present embodiment is that flaky graphite piece-rate system comprises agitator 1, delivery pump 2, electromagnetism vibrancy vortex sieve 3, thickener 4, concentrated underflow pump 5, collecting pit 6 and back water pump 7; At electromagnetism vibrancy vortex sieve 3, charging aperture 3-1, liquid outlet 3-2 and flaky graphite outlet 3-3 is set; Described agitator 1 is communicated with electromagnetism vibrancy vortex sieve 3 through charging aperture 3-1 by delivery pump 2, electromagnetism vibrancy vortex sieve 3 is communicated with thickener 4 through liquid outlet 3-2, thickener 4 is provided with concentrated underflow outlet 4-1 and primary water outlet 4-2, described thickener 4 is communicated with collecting pit 6 through primary water outlet 4-2, arranges concentrated underflow pump 5 at the concentrated underflow outlet 4-1 place of thickener 4; Described collecting pit 6 is communicated with agitator 1 by back water pump 7.
Flaky graphite piece-rate system separative efficiency described in present embodiment is high and be conducive to the protection of flaky graphite, is conducive to the productive rate improving flaky graphite.
Flaky graphite refers to that granularity is greater than the crystalline flake graphite of 100 meshes (0.15mm).
Fig. 1 is the structural representation of the flaky graphite piece-rate system described in detailed description of the invention one; In figure, A is n-th selected concentrate obtained, and B is water, and C is flaky graphite; In figure, 1 is agitator, and 2 is delivery pump, and 3 is electromagnetism vibrancy vortex sieve, and 4 is thickener, 5 is concentrated underflow pump, and 6 is collecting pit, and 7 is back water pump, and 3-1 is charging aperture, 3-2 is liquid outlet, and 3-3 is flaky graphite outlet, and 4-1 is for concentrating underflow outlet, and 4-2 is primary water outlet.
Detailed description of the invention two: composition graphs 1, present embodiment is that a kind of flaky graphite piece-rate system that utilizes carries out the method for flotation to crystalline flake graphite, specifically complete according to the following steps: first conventional flotation is carried out to graphite raw ore, purity >=95% of flaky graphite to the concentrate that n-th selected separation obtains, the concentrate now obtained feeds in the agitator 1 of flaky graphite piece-rate system, and water is added in agitator 1, be transported in electromagnetism vibrancy vortex sieve 3 by delivery pump 2 after stirring and evenly mixing, be separated in electromagnetism vibrancy vortex sieve 3, flaky graphite exports 3-3 by flaky graphite and discharges, in electromagnetism vibrancy vortex sieve 3, residual concentrate liquid feeds in thickener 4 through liquid outlet 3-2, residual concentrate liquid concentrates at thickener 4, and by concentrated underflow pump 5, concentrated concentrate is fed next step ore grinding, carry out after ore grinding (n+1)th time selected, in thickener 4, the concentrated primary water obtained enters in collecting pit 6 by primary water outlet 4-2, and the primary water of the collection of collecting pit 6 is for subsequent use as the use water of agitator 1, utilizes back water pump 7 to be sent in agitator 1 by the primary water of the collection of collecting pit 6.
Multiple trial has been carried out in separation for flaky graphite, and as linear vibrating screen, high frequency shale shaker, hyperfrequency dusting cover etc., separating effect is all undesirable, analysis main cause is the concentrate show bubble after flotation, viscosity own is comparatively large, and flaky graphite sheet is large, is positioned at the middle and upper part of froth bed all the time, after flotation concentrate is sent into screening plant, when feeding coal hour, material moves hardly at compass screen surface, when feeding coal is large, material rapidly flows through compass screen surface, cannot realize effective separation.Present embodiment adopts the viscosity reducing flotation concentrate, devise a flotation concentrate and stir water-adding system (agitator 1), after being diluted with water, reduce viscosity, with delivery pump 2, the concentrate after dilution is fed electromagnetism vibrancy vortex sieve 3 again, sieve isolates flaky graphite, sieve is lower is Fine particle processing (i.e. residual concentrate liquid in electromagnetism vibrancy vortex sieve 3), because Fine particle processing purity now does not reach requirement, ore grinding, flotation should be proceeded.Now the concentration of Fine particle processing is lower, directly cannot carry out ore grinding, flotation, therefore need to concentrate, to be concentrated after suitable concn, then goes to carry out ore grinding, flotation.So the flaky graphite piece-rate system separative efficiency that utilizes of present embodiment is high and be conducive to the protection of flaky graphite.
Detailed description of the invention three: present embodiment with the difference of detailed description of the invention two is: the volume of described water is 5:1 with n-th selected mass ratio being separated the concentrate obtained.Other are identical with detailed description of the invention two.
Detailed description of the invention four: present embodiment with one of detailed description of the invention two or three difference is: the concentrated concentrate concentration sent by concentrated underflow pump 5 bottom described thickener 4 is with n-th time selected to be separated the concentrate concentration obtained identical.Other are identical with detailed description of the invention two or three.
Adopt following verification experimental verification effect of the present invention
Embodiment 1: composition graphs 2, a kind of graphite raw ore method for floating: specifically complete according to the following steps:
Certain graphite raw ore carries out roughly grinding successively, roughly select, selected 1., regrind 1., selected 2., regrind 2., selected 3., selected 4., regrind 3., selected 5., regrind 4. with 6. selected, obtain concentrate, roughly select the mine tailing obtained, scan through twice, the mine tailing scanned is abandoned, and the concentrate scanned for twice, selected 1. mine tailing, selected 2. mine tailing, selected 3. mine tailing return and roughly select; Selected 4. mine tailing carries out regrinding 1. together with selected 1. concentrate, selected 5. mine tailing and selected 6. mine tailing with regrind 2. carry out together with product 3. selected.
It is 9.2% that the present embodiment is separated the productive rate that flaky graphite in the concentrate obtained accounts for total concentrate, and purity is 95.67%.
Embodiment 2: composition graphs 1 and Fig. 2, a kind of flaky graphite piece-rate system that utilizes carries out the method for flotation to crystalline flake graphite, specifically completes according to the following steps:
The concentrate obtained embodiment 1 carries out the mensuration of flaky graphite purity, in selected concentrate 4., the purity of flaky graphite is 95.21%, because the purity of flaky graphite in selected 4. concentrate meets >=95%, so selected 4. concentrate is fed in the agitator 1 of flaky graphite piece-rate system, and water is added in agitator 1, be transported in electromagnetism vibrancy vortex sieve 3 by delivery pump 2 after stirring and evenly mixing, be separated in electromagnetism vibrancy vortex sieve 3, flaky graphite exports 3-3 by flaky graphite and discharges, in electromagnetism vibrancy vortex sieve 3, residual concentrate liquid feeds in thickener 4 through liquid outlet 3-2, residual concentrate liquid concentrates at thickener 4, and by concentrated underflow pump 5 concentrated concentrate fed and regrind 3., carry out 5. selected after ore grinding, in thickener 4, the concentrated primary water obtained enters in collecting pit 6 by primary water outlet 4-2, and the primary water of the collection of collecting pit 6 is for subsequent use as the use water of agitator 1, utilizes back water pump 7 to send in agitator 1 by the primary water of the collection of collecting pit 6,
The volume of water described in the present embodiment and the mass ratio of selected 4. concentrate are 5:1.
The concentrated concentrate concentration sent by concentrated underflow pump 5 bottom thickener 4 described in the present embodiment is identical with selected 4. concentrate concentration.
Flaky graphite piece-rate system described in the present embodiment comprises agitator 1, delivery pump 2, electromagnetism vibrancy vortex sieve 3, thickener 4, concentrated underflow pump 5, collecting pit 6 and back water pump 7; At electromagnetism vibrancy vortex sieve 3, charging aperture 3-1, liquid outlet 3-2 and flaky graphite outlet 3-3 is set; Described agitator 1 is communicated with electromagnetism vibrancy vortex sieve 3 through charging aperture 3-1 by delivery pump 2, electromagnetism vibrancy vortex sieve 3 is communicated with thickener 4 through liquid outlet 3-2, thickener 4 is provided with concentrated underflow outlet 4-1 and primary water outlet 4-2, described thickener 4 is communicated with collecting pit 6 through primary water outlet 4-2, arranges concentrated underflow pump 5 at the concentrated underflow outlet 4-1 place of thickener 4; Described collecting pit 6 is communicated with agitator 1 by back water pump 7.
Embodiment 3: composition graphs 3, a kind ofly utilizes the graphite raw ore method for floating of flaky graphite piece-rate system: specifically complete according to the following steps:
Certain graphite raw ore carries out roughly grinding successively, roughly select, selected 1., regrind 1., selected 2., regrind 2., selected 3., selected 4., flaky graphite piece-rate system, regrind 3., selected 5., regrind 4. with 6. selected, obtain concentrate, roughly select the mine tailing obtained, scan through twice, the mine tailing scanned is abandoned, and the concentrate scanned for twice, selected 1. mine tailing, selected 2. mine tailing, selected 3. mine tailing return and roughly select; Selected 4. mine tailing carries out regrinding 1. together with selected 1. concentrate, selected 5. mine tailing and selected 6. mine tailing with regrind 2. carry out together with product 3. selected; Selected 4. concentrate enters flaky graphite piece-rate system, isolates concentrate C (flaky graphite), and 3. remaining graphite concentrate goes to regrind, through selected 5., regrind 4. with 6. selected, finally obtain concentrate D (Fine particle processing).
The course of work of large scale piece-rate system is: 4. fed by concentrate in agitator 1, and water is added in agitator 1, be transported in electromagnetism vibrancy vortex sieve 3 by delivery pump 2 after stirring and evenly mixing, be separated in electromagnetism vibrancy vortex sieve 3, flaky graphite exports 3-3 by flaky graphite and discharges, and obtains concentrate C; 5. in electromagnetism vibrancy vortex sieve 3, residual concentrate liquid feeds in thickener 4 through liquid outlet 3-2, and residual concentrate liquid concentrates at thickener 4, and to be fed by concentrated concentrate by concentrated underflow pump 5 and regrind 3., carry out selected after ore grinding; In thickener 4, the concentrated primary water obtained enters in collecting pit 6 by primary water outlet 4-2, and the primary water of the collection of collecting pit 6 is for subsequent use as the use water of agitator 1, utilizes back water pump 7 to be sent in agitator 1 by the primary water of the collection of collecting pit 6.
The volume of water described in the present embodiment and the mass ratio of selected 4. concentrate are 5:1.
The concentrated concentrate concentration sent by concentrated underflow pump 5 bottom thickener 4 described in the present embodiment is identical with selected 4. concentrate concentration.
Flaky graphite piece-rate system described in the present embodiment comprises agitator 1, delivery pump 2, electromagnetism vibrancy vortex sieve 3, thickener 4, concentrated underflow pump 5, collecting pit 6 and back water pump 7; At electromagnetism vibrancy vortex sieve 3, charging aperture 3-1, liquid outlet 3-2 and flaky graphite outlet 3-3 is set; Described agitator 1 is communicated with electromagnetism vibrancy vortex sieve 3 through charging aperture 3-1 by delivery pump 2, electromagnetism vibrancy vortex sieve 3 is communicated with thickener 4 through liquid outlet 3-2, thickener 4 is provided with concentrated underflow outlet 4-1 and primary water outlet 4-2, described thickener 4 is communicated with collecting pit 6 through primary water outlet 4-2, arranges concentrated underflow pump 5 at the concentrated underflow outlet 4-1 place of thickener 4; Described collecting pit 6 is communicated with agitator 1 by back water pump 7.
It is flaky graphite that the present embodiment is separated the concentrate C obtained, concentrate D is Fine particle processing, by formula: flaky graphite/(flaky graphite+Fine particle processing) × 100%=19.8%, namely flaky graphite accounts for the productive rate of total concentrate is 19.8%, and purity is 95.21%.Compared with embodiment 1, the productive rate of flaky graphite improves 10.6%, and the flaky graphite purity that both separation obtain all meets >=95%.
Claims (4)
1. a flaky graphite piece-rate system, is characterized in that flaky graphite piece-rate system comprises agitator (1), delivery pump (2), electromagnetism vibrancy vortex sieve (3), thickener (4), concentrated underflow pump (5), collecting pit (6) and back water pump (7); At electromagnetism vibrancy vortex sieve (3), charging aperture (3-1), liquid outlet (3-2) and flaky graphite outlet (3-3) are set; Described agitator (1) is communicated with electromagnetism vibrancy vortex sieve (3) through charging aperture (3-1) by delivery pump (2), electromagnetism vibrancy vortex sieve (3) is communicated with thickener (4) through liquid outlet (3-2), thickener (4) is provided with concentrated underflow outlet (4-1) and primary water outlet (4-2), described thickener (4) is communicated with collecting pit (6) through primary water outlet (4-2), arranges concentrated underflow pump (5) at concentrated underflow outlet (4-1) place of thickener (4); Described collecting pit (6) is communicated with agitator (1) by back water pump (7).
2. utilize a kind of flaky graphite piece-rate system described in claim 1 crystalline flake graphite to be carried out to the method for flotation, it is characterized in that a kind of flaky graphite piece-rate system that utilizes completes according to the following steps to the method that crystalline flake graphite carries out flotation: first conventional flotation is carried out to graphite raw ore, and the purity of flaky graphite in the selected separated product of Real-Time Monitoring, purity >=95% of flaky graphite to the concentrate that n-th selected separation obtains, the concentrate now obtained feeds in the agitator (1) of flaky graphite piece-rate system, and water is added in agitator (1), be transported in electromagnetism vibrancy vortex sieve (3) by delivery pump (2) after stirring and evenly mixing, be separated in electromagnetism vibrancy vortex sieve (3), flaky graphite exports (3-3) by flaky graphite and discharges, in electromagnetism vibrancy vortex sieve (3), residual concentrate liquid feeds in thickener (4) through liquid outlet (3-2), residual concentrate liquid concentrates at thickener (4), and by concentrated underflow pump (5), concentrated concentrate is fed next step ore grinding, carry out after ore grinding (n+1)th time selected, in thickener (4), the concentrated primary water obtained enters in collecting pit (6) by primary water outlet (4-2), the primary water that collecting pit (6) is collected is for subsequent use as the use water of agitator (1), and the primary water utilizing back water pump (7) to be collected by collecting pit (6) is sent in agitator (1).
3. a kind of flaky graphite piece-rate system that utilizes according to claim 2 carries out the method for flotation to crystalline flake graphite, it is characterized in that the volume of described water is 5:1 with n-th selected mass ratio being separated the concentrate obtained.
4. a kind of flaky graphite piece-rate system that utilizes according to claim 3 carries out the method for flotation to crystalline flake graphite, it is characterized in that the concentrated concentrate concentration sent by concentrated underflow pump (5) of described thickener (4) bottom and n-th time selected to be separated the concentrate concentration obtained identical.
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Cited By (5)
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| CN105903582A (en) * | 2016-06-30 | 2016-08-31 | 宜昌新成石墨有限责任公司 | Airflow ore-dressing device and method for protecting flaky graphite |
| CN107799773A (en) * | 2017-09-26 | 2018-03-13 | 湖南湘讯企业管理有限公司 | A kind of lithium battery negative material and its preparation method and application |
| CN108906288A (en) * | 2018-07-18 | 2018-11-30 | 张善明 | One kind being based on cylinder rod milling mine, the other graphite ore-dressing plant of winnowing |
| CN109909062A (en) * | 2019-03-27 | 2019-06-21 | 青海省地质矿产测试应用中心 | Mineral separation method of protective scale for fine-grained crystalline graphite ore |
| CN114405683A (en) * | 2022-01-14 | 2022-04-29 | 五星新材科技有限公司 | Graphite flotation treatment process and device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903582A (en) * | 2016-06-30 | 2016-08-31 | 宜昌新成石墨有限责任公司 | Airflow ore-dressing device and method for protecting flaky graphite |
| CN105903582B (en) * | 2016-06-30 | 2018-06-15 | 宜昌新成石墨有限责任公司 | A kind of air-flow ore-dressing plant and method for protecting flaky graphite |
| CN107799773A (en) * | 2017-09-26 | 2018-03-13 | 湖南湘讯企业管理有限公司 | A kind of lithium battery negative material and its preparation method and application |
| CN107799773B (en) * | 2017-09-26 | 2020-06-05 | 吉林聚能新型炭材料股份有限公司 | Negative electrode material for lithium battery and preparation method and application thereof |
| CN108906288A (en) * | 2018-07-18 | 2018-11-30 | 张善明 | One kind being based on cylinder rod milling mine, the other graphite ore-dressing plant of winnowing |
| CN108906288B (en) * | 2018-07-18 | 2024-03-19 | 张善明 | Graphite ore dressing device based on cylindrical rod ore grinding and wind power sorting |
| CN109909062A (en) * | 2019-03-27 | 2019-06-21 | 青海省地质矿产测试应用中心 | Mineral separation method of protective scale for fine-grained crystalline graphite ore |
| CN114405683A (en) * | 2022-01-14 | 2022-04-29 | 五星新材科技有限公司 | Graphite flotation treatment process and device |
| CN114405683B (en) * | 2022-01-14 | 2024-03-22 | 五星新材科技有限公司 | Graphite flotation treatment process and device |
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