CN105583086A - Flotation column flotation method for flake graphite - Google Patents
Flotation column flotation method for flake graphite Download PDFInfo
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- CN105583086A CN105583086A CN201510966916.7A CN201510966916A CN105583086A CN 105583086 A CN105583086 A CN 105583086A CN 201510966916 A CN201510966916 A CN 201510966916A CN 105583086 A CN105583086 A CN 105583086A
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- flotation
- floating
- flake graphite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
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Abstract
The invention provides a flotation column flotation method of flake graphite, which adopts a flotation column as flotation separation equipment, is combined with a stirring mill, takes the flake graphite as a raw material, and produces high-carbon flake graphite concentrate by grinding for 1-3 times and flotation for 2-5 times in cooperation with a flotation reagent; the flotation agent comprises a regulator, a collector and a foaming agent. The method provided by the invention can realize the rapid enrichment of the flake graphite, shorten the flotation process, reduce the production cost, simultaneously have small floor area of equipment and facilitate the realization of automatic control.
Description
Technical field
The invention belongs to technique of preparing field, be specifically related to a kind of method for floating of crystalline flake graphite.
Background technology
Crystalline flake graphite is that to have high temperature resistant, anti-thermal shock, heat endurance, high conductivity and lubricity excellentGood feature, is widely used in the fields such as machinery, metallurgy, refractory material and new material, is a kind of importantNonmetallic mineral material.
Floatation is the main method of crystalline flake graphite enrichment, crystalline flake graphite raw ore roughly selected through ore grinding,Rough concentrate is ore grinding (5～10 times) repeatedly, and repeatedly flotation (6～12 times), obtains crystalline flake graphite concentrate. GreatlyScale industrialization is produced the capital equipment adopting and is comprised flotation device, ball mill, stirring mill etc. Conventional floatingSelect machine to comprise agitation impeller flotator, air agitation type floatation device etc., this type of flotation device flowsheet of slurry agitationThe shortcomings such as greatly, bubble easily breaks, concentration ratio is low, flotation flowsheet is long, production cost is high.
Flotation column is the equipment of current many mineral cleaning and Purification, has froth bed stable, and concentration ratio is high,The advantage of good separating effect, at coal slime flotation, is become in the nonferrous metals ore flotation such as copper mine, molybdenum oreRipe application. Flotation column is also entered at aspects such as airing form, liquid level regulation device and column structuresThe optimization of one step and lifting. In crystalline flake graphite production at present, all adopt under the background of flotation device flotationPost is that the floatation process of capital equipment has met the feature that crystalline flake graphite foam volume is large, concentration ratio is high.
In recent years, in crystalline flake graphite flotation field, there is the Patents of a small amount of crystalline flake graphite flotation pillar special,But in production, there is no the report that uses flotation column.
Summary of the invention
The weak point existing for this area, the object of the present invention is to provide a kind of crystalline flake graphiteFlotation column method for floating, thereby output and the quality of raising crystalline flake graphite.
The technical scheme that realizes the object of the invention is:
A flotation column method for floating for crystalline flake graphite, adopts flotation column as flotation separation equipment, withStir mill associating configuration, taking crystalline flake graphite as raw material, through 1～3 ore grinding, 2～5 flotation, joinClose floating agent, produce high-carbon crystalline flake graphite concentrate; Described floating agent comprises adjusting agent, collecting agentAnd foaming agent. Wherein, adopt 2～5 flotation columns to carry out 2～5 times described flotation, described flotation columnFor adverse current type, flotation column adopts the airing form that microvesicle directly fills and/or ore deposit aerating mixes
Ore deposit aerating is the Mixing and aeration mode that adopts ore pulp circulation inflatable and the common stack of microvesicle inflation, micro-Bubble directly fills the gas replenishment process that all can be used for crystalline flake graphite flotation column with ore deposit aerating.
Wherein, described crystalline flake graphite water is sized mixing, is mixed with floating agent, enters first flotation columnFeed port, carries out flotation for the first time and (enters for the first time flotation column and add floating agent, follow-up needs againDosing), enter and stir mill ore grinding from the foam of first flotation column top output, after ore grinding, enter theTwo flotation columns, repeat ore grinding and flotation column flotation, finally obtain crystalline flake graphite essence from flotation column topOre deposit.
Above-mentioned technique is floating-mill-floating-mill-floating ... .. is alternate, wherein after last ore grinding, can enter continuouslyRepeatedly flotation column flotation of row. Can be for example: floating-mill-floating-mill-floating-floating.
Wherein, the equipment of ore grinding is vertical stirring mill, adopts the aluminium oxide ceramic ball of diameter 10mmFor milling medium.
As the raw material of flotation, in described crystalline flake graphite, fixed carbon content is 20%～94%.
Wherein, crystalline flake graphite enters water before flotation column and sizes mixing, and gained pulp density is 6%～15%.
Wherein, the crystalline flake graphite fineness that enters flotation column flotation is that the following grade of 0.15mm accounts for30%～90%. (before entering flotation column, not needing screening).
Wherein, described floating agent is selected from two kinds or three kinds in adjusting agent, collecting agent and foaming agent,Wherein adjusting agent is selected from white lime and/or waterglass, and collecting agent is diesel oil and/or kerosene, foaming agent choosingOne or more in BK201, BK204, IMBC, terpenic oil.
Further, measure as benchmark taking the dry ore deposit of graphite ore, described adjusting agent addition is 2～20g/t,Collecting agent addition is 10～25g/t, and foaming agent addition is 1～10g/t.
Preferably, described collecting agent is the mixture of diesel oil and kerosene, and wherein diesel oil addition is5～20g/t, kerosene addition is 5g/t.
Wherein, the aeration quantity scope 0.5～1m of described flotation column3·m-2·min-1, enter the ore deposit of flotation columnSlurry range of flow 0.05～0.4m3·m-2·min-1。
Beneficial effect of the present invention is:
The method that the present invention proposes, can realize the fast enriching of crystalline flake graphite, shortens flotation flowsheet,Reduce production costs, occupation area of equipment is little simultaneously, is convenient to realize automatic control.
Brief description of the drawings
Fig. 1 is the flow chart of method for floating of the present invention.
Fig. 2 is that ore pulp is at the schematic flow sheet stirring between mill-flotation column.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is done further and retouched in detailState.
Those skilled in the art should know, and following examples are only for the present invention is described, but are not used forLimit the scope of the invention.
In following examples, the flotation column of employing is adverse current type, adopts microvesicle directly to fill with ore deposit aerating and mixesAiring form (ore pulp circulation inflatable and microvesicle are directly inflated the Mixing and aeration mode of stack), band liquid levelControl system, flotation column diameter 0.8m, height 8m, feed ore pulp at the feed port on cylinder top,Overflow foam in top is concentrate, and bottom adopts automatic ore discharge. Ore grinding adopts vertical stirring mill, grinding machineInner line with rubber, adopting the aluminium oxide ceramic ball of diameter 10mm is milling medium. Ore grinding mass concentration18％～24％。
Embodiment 1:
Flow process is as Fig. 1, and certain crystalline flake graphite ore deposit (does not need screening) and obtains crystalline flake graphite after roughly selectingRough concentrate, rough concentrate fixed carbon content is 31%, fineness is that the following particle of 0.15mm accounts for 70%.
By rough concentrate add water size mixing to pulp density be 8%～10%, calculate to do ore deposit amount the bavin addingOil mass is 5g/t, and kerosene amount is 5g/t, and foaming agent is BK204, and consumption is 4g/t, carries out the 1st timeFlotation column is selected, flotation column aeration quantity scope 0.6～0.7m3·m-2·min-1, mineral slurry flux 0.12m3/min(in operation, having fluctuation).
The selected froth pulp of flotation column enters follow-up stirring mill ore grinding, and first flotation column for the first timeUnderflow underflow as product from failing, 2-4 flotation column bottom-flow returns to the ore deposit of entering of a flotation column(referring to Fig. 2, flotation column goes out a product to mouth for the first time, and last flotation column goes out crystalline flake graphite essenceOre deposit. All flotation column bottom-flow orders after first turn back to the feed port of a front flotation column).Through flotation-ore grinding-flotation-ore grinding-flotation, control flotation column flotation mass concentration 8～10%, amount toNo. 4 flotation columns are selected and stir mill ore grinding (process for floating-mill-floating-mill-floating-mill-floating) for 3 times, finalThe crystalline flake graphite concentrate that obtains fixed carbon content 91%, the rate of recovery is 77%. At the bottom of 2nd～4 flotation columnsStream returns to the iron ore feeding hole of last flotation column.
Embodiment 2
The fixed carbon content of certain crystalline flake graphite product is 82%, and fineness is that the following particle of 0.15mm accounts for80％。
Add diesel oil, kerosene and foaming agent, calculate the diesel oil amount adding as 15g/t, coal to do ore deposit amountOil mass is 5g/t, and foaming agent is BK201, and consumption is 8g/t. Water size mixing to pulp density be 8%,Enter No. the 1st flotation column selected, the selected froth pulp of flotation column enters follow-up stirring mill ore grinding, floatingSelect post underflow as product from failing. Flotation column aeration quantity scope 0.6～0.7m3·m-2·min-1. Flow of slurryAmount 0.12m3/ min (having fluctuation in operation), follow-up through flotation-ore grinding-flotation-ore grinding-flotation, controlFlotation column flotation mass concentration 7%～8% processed, amounts to No. 4 flotation columns selected and stir for 3 times and grind ore grindings,The final crystalline flake graphite concentrate that obtains fixed carbon content 95.30%, the rate of recovery is 71%. 2nd～4 is floatingSelect post underflow to return to the iron ore feeding hole of last flotation column.
Embodiment 3
The fixed carbon content of certain crystalline flake graphite product is 90%, and fineness is that the following particle of 0.15mm accounts for80％。
Add diesel oil, foaming agent BK204, the diesel oil amount adding is 10g/t, and foaming agent consumption is 5g/tSize mixing, control ore pulp mass concentration 6%～7%, enter No. the 1st flotation column selected, flotation column topFroth pulp enters and stirs mill ore grinding, and underflow is discharged as middle carbon products, sizes mixing dense to ore pulp after ore grindingDegree is about 7%, carries out continuous No. 2 flotation columns selected, and the 2nd time, the 3rd time flotation column bottom-flow returnsA front flotation column entrance (process is for floating-grind-floating-float), flotation column aeration quantity scope0.7～0.8m3·m-2·min-1, mineral slurry flux 0.15m3/ min (having fluctuation in operation).
The final crystalline flake graphite concentrate that obtains fixed carbon content 95.10%, the rate of recovery is 68%.
Embodiment 4
The fixed carbon content of certain crystalline flake graphite product is 94%, and fineness is that the following particle of 0.15mm accounts for80％。
Add diesel oil, foaming agent, the kerosene amount adding is 10g/t, and foaming agent BK204 consumption is5g/t. And water size mixing to pulp density be 6%, enter No. the 1st flotation column selected, flotation column essenceSelect froth pulp to enter follow-up stirring mill ore grinding, flotation column bottom-flow is as product from failing. Squama after ore grindingSheet graphite through continuous No. 2 flotation columns selected, before the 2nd time, the 3rd time flotation column bottom-flow returns onceFlotation column entrance, flotation column aeration quantity scope 0.7～0.8m3·m-2·min-1. Mineral slurry flux 0.15m3/min(in operation, having fluctuation).
The final crystalline flake graphite concentrate that obtains fixed carbon content 96.70%, the rate of recovery is 62%.
Above embodiment is described the preferred embodiment of the present invention, not to thisBright scope limits, and designs under the prerequisite of spirit the common engineering in this area not departing from the present inventionVarious modification and improvement that technical staff makes technical scheme of the present invention, all should fall into of the present inventionIn the definite protection domain of claims.
Claims (10)
1. a flotation column method for floating for crystalline flake graphite, is characterized in that, adopts flotation columnAs flotation separation equipment, with stirring mill associating configuration, taking crystalline flake graphite as raw material, process1～3 ore grinding, 2～5 flotation, coordinate floating agent, produces high-carbon crystalline flake graphite concentrate;Described floating agent comprises adjusting agent, collecting agent and foaming agent; Wherein, adopt 2～5 flotationPost carries out 2～5 times described flotation, and described flotation column is adverse current type, and flotation column adopts microvesicle straightFill and/or ore deposit aerating mix airing form.
2. method for floating as claimed in claim 1, is characterized in that, described crystalline flake graphiteWater is sized mixing, is mixed with floating agent, enters first flotation column feed port, carries out for the first timeFlotation, enters and stirs mill ore grinding from the foam of first flotation column top output, after ore grinding, entersSecond flotation column, repeats ore grinding and flotation column flotation, finally obtains scale from flotation column topGraphite concentrate.
3. method for floating as claimed in claim 1, is characterized in that, the equipment of ore grinding isVertical stirring mill, adopting the aluminium oxide ceramic ball of diameter 10mm is milling medium.
4. method for floating as claimed in claim 1, is characterized in that, described crystalline flake graphiteIn, fixed carbon content is 20%～94%.
5. method for floating as claimed in claim 4, is characterized in that, crystalline flake graphite entersBefore flotation column, water is sized mixing, and gained pulp density is 6%～15%.
6. method for floating as claimed in claim 1, is characterized in that, enters flotation column floatingThe crystalline flake graphite fineness of choosing is that the following grade of 0.15mm accounts for 30%～90%.
7. method for floating as claimed in claim 1, is characterized in that, described floating agentBe selected from two kinds or three kinds in adjusting agent, collecting agent and foaming agent, wherein adjusting agent is selected from ripe stoneAsh and/or waterglass, collecting agent is diesel oil and/or kerosene, foaming agent be selected from BK201, BK204,One or more in IMBC, terpenic oil.
8. method for floating as claimed in claim 7, is characterized in that, with the dry ore deposit of graphite oreAmount is benchmark meter, and described adjusting agent addition is 2～20g/t, and collecting agent addition is 10～25g/t,Foaming agent addition is 1～10g/t.
9. method for floating as claimed in claim 8, is characterized in that, described collecting agent isThe mixture of diesel oil and kerosene, wherein diesel oil addition is 5～20g/t, kerosene addition is 5g/t.
10. the method for floating as described in as arbitrary in claim 1～9, is characterized in that, described floatingSelect the aeration quantity scope 0.5～1m of post3·m-2·min-1, the mineral slurry flux scope that enters flotation column0.05～0.4m3·m-2·min-1。
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Cited By (8)
| 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 |
| CN106423532A (en) * | 2016-09-30 | 2017-02-22 | 中国矿业大学 | Method for flotation separation and recovery of graphite and silicon from waste graphite modules in silicon crystal production process |
| CN106513164A (en) * | 2016-11-09 | 2017-03-22 | 金建工程设计有限公司 | Large-scale crystalline graphite ore flotation fast selecting agent and flotation technology |
| CN107448731A (en) * | 2017-08-01 | 2017-12-08 | 辛宇 | A kind of Wen's pipe connected pipe method of inhibiting corrosion |
| CN111135956A (en) * | 2019-12-24 | 2020-05-12 | 湖北冶金地质研究所(中南冶金地质研究所) | Method for protecting scale in graphite processing |
| CN112718232A (en) * | 2020-12-17 | 2021-04-30 | 郑州大学 | Method for protecting crystalline graphite flakes through graded grinding and floating |
| CN113182062A (en) * | 2021-05-19 | 2021-07-30 | 山东理工大学 | Method for flotation of flake graphite ore |
| CN114918045A (en) * | 2022-05-12 | 2022-08-19 | 矿冶科技集团有限公司 | Graphite ore flotation reagent and preparation method thereof |
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| 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 |
| CN106423532B (en) * | 2016-09-30 | 2018-09-18 | 中国矿业大学 | A method of FLOTATION SEPARATION, recycling graphite and silicon from the graphite components that silicon wafer production process is discarded |
| CN106423532A (en) * | 2016-09-30 | 2017-02-22 | 中国矿业大学 | Method for flotation separation and recovery of graphite and silicon from waste graphite modules in silicon crystal production process |
| CN106513164A (en) * | 2016-11-09 | 2017-03-22 | 金建工程设计有限公司 | Large-scale crystalline graphite ore flotation fast selecting agent and flotation technology |
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| CN107448731B (en) * | 2017-08-01 | 2019-03-12 | 辛宇 | A kind of Wen's pipe connected pipe method of inhibiting corrosion |
| CN111135956A (en) * | 2019-12-24 | 2020-05-12 | 湖北冶金地质研究所(中南冶金地质研究所) | Method for protecting scale in graphite processing |
| CN111135956B (en) * | 2019-12-24 | 2021-09-28 | 湖北冶金地质研究所(中南冶金地质研究所) | Method for protecting scale in graphite processing |
| CN112718232A (en) * | 2020-12-17 | 2021-04-30 | 郑州大学 | Method for protecting crystalline graphite flakes through graded grinding and floating |
| CN113182062A (en) * | 2021-05-19 | 2021-07-30 | 山东理工大学 | Method for flotation of flake graphite ore |
| CN114918045A (en) * | 2022-05-12 | 2022-08-19 | 矿冶科技集团有限公司 | Graphite ore flotation reagent and preparation method thereof |
| CN114918045B (en) * | 2022-05-12 | 2024-04-12 | 矿冶科技集团有限公司 | Graphite ore flotation reagent and preparation method thereof |
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Application publication date: 20160518 |