CN107377200A - A kind of purification by mineral method of high clay Fine particle processing - Google Patents

A kind of purification by mineral method of high clay Fine particle processing Download PDF

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Publication number
CN107377200A
CN107377200A CN201710723114.2A CN201710723114A CN107377200A CN 107377200 A CN107377200 A CN 107377200A CN 201710723114 A CN201710723114 A CN 201710723114A CN 107377200 A CN107377200 A CN 107377200A
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concentrate
chats
sections
dosage
purification
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CN107377200B (en
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程飞飞
张韬
于阳辉
岑对对
贺洋
安卫东
刘克起
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SUZHOU SINO-MATERIALS NON-METALLIC MINERALS INDUSTRY DESIGN AND RESEARCH INSTITU
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SUZHOU SINO-MATERIALS NON-METALLIC MINERALS INDUSTRY DESIGN AND RESEARCH INSTITU
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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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • 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
    • 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
    • B03D2203/00—Specified materials treated by the flotation agents; specified applications
    • B03D2203/02—Ores

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  • Processing Of Solid Wastes (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The invention provides a kind of purification by mineral method of high clay Fine particle processing.The present invention high clay Fine particle processing purification by mineral method, including one section of classification, two sections of roughings, one section scan, three sections regrind, three sections scourings, six sections it is selected；Partition size is 10~20 μm, clay mineral is separated as far as possible with Fine particle processing；The concentrate product finally obtained fixes carbon content >=95%, the rate of recovery >=90%.The present invention uses the united technique of gravity-floatation, effectively solves the problems, such as that high clay Fine particle processing has long flow path, efficiency are low, the rate of recovery is low etc. when directly mill is floating.

Description

A kind of purification by mineral method of high clay Fine particle processing
Technical field
The invention belongs to graphite purification by mineral technical field, is related to a kind of purification by mineral side of high clay Fine particle processing Method.
Background technology
Graphite is a kind of important nonmetal mineral resource, has that high temperature resistant, anticorrosive, anti-thermal shock, intensity is big, toughness The performances such as good, self-lubricating, heat conduction, conduction, be widely used in metallurgy, machinery, electronics, chemical industry, light industry, military project, national defence, space flight and The industries such as refractory material, it is the essential nonmetallic materials of current hi-tech development.
Graphite can be divided into Scaly graphite and aphanitic graphite by crystal habit, and Scaly graphite can be divided into greatly again by scale size Crystalline flake graphite, Fine particle processing and micro crystal graphite.China's graphite resource very abundant and widely distributed, Scaly graphite is mainly distributed Saved in Heilungkiang, Shandong, Inner Mongol, Shanxi, He Beiwu, most of is middle Fine particle processing.With the development of science and technology, the world In the range of high-quality flaky graphite resource be gradually consumed, while graphite demand is continuously increased, and Fine particle processing is opened Send out and utilize and be just taken seriously.
Graphite flakes are bigger, and washability is better.The conventional purification by mineral method of current domestic Fine particle processing is floatation, The general technology used for：Roughing, once purging selection are once roughly ground, repeatedly regrinds, is repeatedly selected.
CN105289835A discloses a kind of low-grade Fine particle processing purification by mineral technique, and it includes once roughly grinding roughing Process, once regrind five seven refining process of scouring and Treatment of Middling process；Concentrate passes through again after primary cleaning after regrinding Five scourings six are selected that final concentrate, final concentrate fix carbon content 92~94%, the concentrate rate of recovery 90~95%.The hair Bright use, which is once regrinded, makes graphite and the abundant monomer dissociation of gangue mineral, and is regrinded in follow-up process with scouring replacement, cleans Step can play scattered concentrate foam and clean the effect of mineral particle surface, and low with energy consumption, and Mediawear is small, technique letter The advantage such as single.
CN103072975A discloses a kind of low-grade aphanitic graphite purification by mineral method, first will fixed carbon content 45-80% aphanitic graphite crushing raw ore, ore grinding；Slime flocculant, inhibitor, collecting agent, foaming agent are added in ore pulp, The FLOTATION SEPARATION in agitation impeller flotator, flotation concentrate remove most of gangue ore deposit in ore through multistage regrinding and reconcentration Thing obtains flotation final concentrate；Flotation final concentrate passes through high-gradient magnetic separation, deviates from rider mineral therein, can be expired Sufficient trade mark WT88 or WT88 requirements above product I.Regrinding and reconcentration chats and magnetic middling ore are concentrated to be selected again, can be obtained and be met the trade mark The product II of W80 requirements, overall recovery are more than 80%.This method is low to raw ore fixed carbon content requirement, and it is miscellaneous effectively to reduce iron content Matter, treating capacity is big, and production cost is low, environmental protection.
But be not graphite merely in graphite ore, have paragenous mineral.Graphite in general paragenous mineral is kaolin, green The clay minerals such as mudstone and quartz, pyrite, calcite etc., and clay mineral typically has the characteristics that fine size, viscosity are high. When Fine particle processing CLAY MINERALS AND THEIR SIGNIFICANCE content is higher, using the floating purification by mineral method of the direct mill of routine, clay mineral In the presence of flotation environment can be deteriorated, Fine particle processing flotation effect is influenceed, long flow path, efficiency are low, the rate of recovery is low etc. be present.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of purification by mineral of high clay Fine particle processing Method, using the new technology of gravity treatment-flotation combined, effectively solve high clay Fine particle processing and flow be present when directly mill is floating It is long, efficiency is low, the rate of recovery is low etc., and problem, the concentrate product finally obtained fix carbon content >=95%, the rate of recovery >=90%.
To use following technical scheme up to this purpose, the present invention：
A kind of purification by mineral method of high clay Fine particle processing, comprises the following steps：
1) it will carry out smashing slurry after high clay Fine particle processing crushing raw ore extremely -2cm, the slurry smash after starching will be classified, Obtain coarse granule product I and fine grained product II；
2) floating agent is added in the fine grained product II obtained to step 1) and carries out roughing, obtain rough concentrate A and mine tailing 1；
3) floating agent is added in the coarse granule product I obtained to step 1) and carries out roughing, obtain rough concentrate and chats 0； Rough concentrate is subjected to primary cleaning, obtains primary cleaning concentrate and chats 1；Primary cleaning concentrate is once regrinded, be secondary It is selected, obtain recleaning concentrate B and chats 2；
4) by step 2) obtain rough concentrate A and step 3) obtain recleaning concentrate B merge carry out it is secondary regrind, three It is secondary selected, obtain triple cleaning concentrate and chats 3；Triple cleaning concentrate is subjected to once scouring, four selected, four essences of acquisition Concentrate selection and chats 4；Four selected concentrate are subjected to secondary scouring, five selected, acquisition five selected concentrate and chats 5；Will Five selected concentrate carry out scouring three times, six selected, acquisition graphite concentrate product and chats 6；
5) chats 0 that obtains step 3), chats 1, chats is 2-in-1 and is regrinded three times, once purging selection, acquisition chats 6 With mine tailing 2；By the return to step 3 of chats 6) primary cleaning in, and regrind three by two sections in step 3) and step 4) successively Section cleans six sections of selected acquisition graphite concentrate products；
6) return to step 3 of chats 3 for obtaining step 4)) recleaning in, and successively by step 3) and step 4) In one section regrind three sections clean five sections it is selected obtain graphite concentrate products；
7) by step 4) obtain the return to step 4 of chats 4) triple cleaning in, and successively pass through step 4) in three sections Clean four sections of selected acquisition graphite concentrate products；
8) by step 4) obtain the return to step 4 of chats 5) once scouring in, and successively pass through step 4) in three sections Clean three sections of selected acquisition graphite concentrate products；
9) by step 4) obtain the return to step 4 of chats 6) secondary scouring in, and successively pass through step 4) in two sections Clean two sections of selected acquisition graphite concentrate products.
In step 1), the slurry concentration of smashing is 20~60%, and the slurry concentration of smashing refers to during smashing slurry, after crushing Mineral be added to the water it is rear made of ore pulp Minerals concentration, such as during smashing slurry, it is broken after mineral be added to the water after Mineral quality concentration is 20%, 30%, 40%, 50%, 60%；The time for smashing slurry is 5~60min, for example, smash slurry when Between be 5min, 10min, 15min, 20min, 25min, 30min, 35min, 40min, 45min, 50min, 55min, 60min.
In step 1), the slurry process of smashing adds dispersant, and the dispersant dosage is 0.5~4 ‰, such as dispersant Dosage is 0.5 ‰, 1 ‰, 1.5 ‰, 2 ‰, 2.5 ‰, 3 ‰, 3.5 ‰, 4 ‰, and the dispersant is calgon, pyrophosphoric acid One kind in sodium, polyacrylamide.
In step 1), the partition size of the classification is 10~20 μm, for example, partition size is 10 μm, 11 μm, 12 μm, 13 μm、14μm、15μm、16μm、17μm、18μm、19μm、20μm。
In step 2), the dosage of the roughing floating agent is 3000~5000g/t, i.e., is made in mineral to be selected per ton The quality dosage of floating agent is 3000~5000g；The floatation concentration is 10~15%, and floatation concentration refers to, and will be treated thick The mineral of choosing are added to the water to form ore pulp, treated in ore pulp the mass concentrations of roughing mineral for 10%, 11%, 12%, 13%, 14%th, 15%；The flotation time is 5~20min, for example, flotation time is 5min, 6min, 7min, 8min, 9min, 10min、11min、12min、13min、14min、15min、16min、17min、18min、19min、20min。
It should be noted that content of the present invention is mass content, described dosage is quality dosage；Described is floating Concentration is selected to refer to, during flotation, the mass concentration of the ore pulp Minerals formed after pending mineral are added to the water, following flotation This is no longer going to repeat them for concentration implication.
In step 3), the dosage of the roughing floating agent is 2000~3000g/t, such as roughing flotation medicine The dosage of agent be 2000g/t, 2100g/t, 2200g/t, 2300g/t, 2400g/t, 2500g/t, 2600g/t, 2700g/t, 2800g/t、2900g/t、3000g/t；The floatation concentration be 30~40%, such as floatation concentration be 30%, 31%, 32%, 33%th, 34%, 35%, 36%, 37%, 38%, 39%, 40%；The flotation time is 5~15min, such as flotation time is 5min、6min、7min、8min、9min、10min、11min、12min、13min、14min、15min。
In step 3), the primary cleaning floating agent dosage is 1500~2500g/t, such as primary cleaning flotation Dosing be 1500g/t, 1600g/t, 1700g/t, 1800g/t, 1900g/t, 2000g/t, 2100g/t, 2200g/t, 2300g/t、2400g/t、2500g/t；Floatation concentration be 15~25%, such as floatation concentration be 15%, 16%, 17%, 18%, 19%th, 20%, 21%, 22%, 23%, 24%, 25%；The flotation time is 3~10min, for example, flotation time be 3min, 4min、5min、6min、7min、8min、9min、10min。
In step 3), it is described once regrind after -38 μm of contents of mog be 70~75%, i.e., after once regrinding, The mass content of the ore grinding of -38 μm of fineness is 70%, 71%, 72%, 73%, 74%, 75%；Recleaning flotation medicine The dosage of agent is 100~500g/t, for example, recleaning with the dosage of floating agent is 100g/t, 200g/t, 300g/t, 400g/t、500g/t；Floatation concentration be 15~25%, such as floatation concentration be 15%, 16%, 17%, 18%, 19%, 20%, 21%th, 22%, 23%, 24%, 25%；The flotation time is 3~10min, for example, flotation time is 3min, 4min, 5min, 6min、7min、8min、9min、10min。
In step 4), it is described it is secondary regrind after -38 μm of contents of mog be 90~95%, such as it is secondary regrind after - 38 μm of contents of mog are 90%, 91%, 92%, 93%, 94%, 95%.
In step 4), the dosage of the triple cleaning floating agent is 100~500g/t, such as triple cleaning flotation The dosage of medicament is 100g/t, 150g/t, 200g/t, 250g/t, 300g/t, 350g/t, 400g/t, 450g/t, 500g/t；It is floating Select concentration be 10~20%, such as floatation concentration be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%th, 20%；The flotation time is 3~10min, for example, flotation time is 3min, 4min, 5min, 6min, 7min, 8min, 9min、10min。
In step 4), the scouring time once cleaned is 1~5min, for example, clean the time be 1min, 2min, 3min、4min、5min。
In step 4), four selected dosages with floating agent are 0~300g/t, such as four times selected are used flotation medicines The dosage of agent is 10g/t, 50g/t, 100g/t, 150g/t, 200g/t, 250g/t, 300g/t；Floatation concentration is 10~20%, Such as floatation concentration is 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%；The flotation Time is 3~10min, such as flotation time is 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min.
In step 4), the scouring time of the secondary scouring is 1~5min, for example, clean the time be 1min, 2min, 3min、4min、5min。
In step 4), five selected dosages with floating agent are 0~300g/t, such as five times selected are used flotation medicines The dosage of agent is 10g/t, 50g/t, 100g/t, 150g/t, 200g/t, 250g/t, 300g/t；Floatation concentration is 5~15%, example If floatation concentration is 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%；The flotation time is 3 ~10min, such as flotation time are 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min.
In step 4), the scouring time cleaned three times is 1~5min, for example, clean the time be 1min, 2min, 3min、4min、5min。
In step 4), six selected dosages with floating agent are 0~300g/t, such as six times selected are used flotation medicines The dosage of agent is 10g/t, 50g/t, 100g/t, 150g/t, 200g/t, 250g/t, 300g/t；Floatation concentration is 5~15%, example If floatation concentration is 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%；The flotation time is 3 ~10min, such as flotation time are 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min.
It is described to regrind rear -38 μm of contents of mog three times as 80~85% in step 5), such as rear ore grinding is regrinded three times - 38 μm of contents of fineness are 80%, 81%, 82%, 83%, 84%, 85%.
In step 5), the dosage of the floating agent of the once purging selection is 100~500g/t, such as once purging selection flotation The dosage of medicament is 100g/t, 150g/t, 200g/t, 250g/t, 300g/t, 350g/t, 400g/t, 450g/t, 500g/t；It is floating Select concentration be 30~40%, such as floatation concentration be 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%；The flotation time is 3~10min, for example, flotation time is 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min。
It should be noted that in step 5) " two sections regrind three sections clean six sections it is selected " refer to have passed through twice it is honed again Cheng Sandao clean the refining process of process six, it is therefore an objective to step 3), 4) in regrind several times clean several times it is selected several times in " secondary " makes a distinction, step 6), 7), 8), 9) in " section " similarly, will not be repeated here.
The content of clay class mineral is 30~50% in the high clay Fine particle processing raw ore, such as clay class mineral Content be 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%th, 45%, 46%, 47%, 48%, 49%, 50%；Fixed carbon content is 10~30%, for example, fixed carbon content be 10%, 11%th, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%th, 27%, 28%, 29%, 30%.
The roughing, it is selected, scan used in the process of floating agent for quick lime, sodium metasilicate (waterglass), six inclined phosphorus Sour sodium, sodium pyrophosphate, kerosene, diesel oil, No. 2 oil, one kind in No. 4 oil or at least two mixture.
In step 1), the shattering process is crushed using jaw crusher or double-roll crusher；
Preferably, in step 1), described classification process is classified using hydrocyclone；
Preferably, the roughing, it is selected, scan process using RK/FD types single-trough flotating machine carry out flotation；
Preferably, the process of regrinding is regrinded using conical ball mill.
Its fixation carbon content >=95% of the concentrate product, the rate of recovery >=90%.
As the preferred scheme of the present invention, the purification by mineral method of the high clay Fine particle processing, comprise the following steps：
1) will carry out smashing slurry after high clay Fine particle processing crushing raw ore to -2cm, it is 20~60% to smash slurry concentration, is disperseed Agent dosage is 0.5~4 ‰, and it is 5~60min to smash the slurry time；The slurry smash after starching is classified, partition size is 10~20 μ M, obtain coarse granule product I and fine grained product II；
2) to step 1) obtain fine grained product II in add floating agent carry out roughing, dosing be 3000~ 5000g/t, floatation concentration are 10~15%, and flotation time is 5~20min, obtain rough concentrate A and mine tailing 1；
3) to step 1) obtain coarse granule product I in add floating agent carry out roughing, dosing be 2000~ 3000g/t, floatation concentration are 30~40%, and flotation time is 5~15min, obtain rough concentrate and chats 0；Rough concentrate is carried out Primary cleaning, dosing are 1500~2500g/t, and floatation concentration is 15~25%, and flotation time is 3~10min, obtains one Secondary selected concentrate and chats 1；Primary cleaning concentrate is once regrinded into recleaning, -38 μm of contents of mog are 70~ 75%, dosing is 100~500g/t, and floatation concentration is 15~25%, and flotation time is 3~10min, obtains recleaning Concentrate B and chats 2；
4) the recleaning concentrate B merging progress of rough concentrate A and step 3) acquisition obtained step 2) is secondary to regrind three Secondary selected, -38 μm of contents of mog are 90~95%, and dosing is 100~500g/t, and floatation concentration is 10~20%, Flotation time is 3~10min, obtains triple cleaning concentrate and chats 3；Triple cleaning concentrate is carried out once to clean four essences Choosing, scourings time be 1~5min, and dosing is 0~300g/t, and floatation concentration is 10~20%, flotation time for 3~ 10min, obtain four selected concentrate and chats 4；By four selected concentrate carry out it is secondary clean five times it is selected, it is 1 to clean the time ~5min, dosing are 0~300g/t, and floatation concentration is 5~15%, and flotation time be 3~10min, and acquisition five times is selected Concentrate and chats 5；By five selected concentrate clean three times six times it is selected, the scouring time is 1~5min, dosing 0 ~300g/t, floatation concentration are 5~15%, and flotation time is 3~10min, obtain graphite concentrate product and chats 6；
5) chats 0 that obtains step 3), chats 1, chats is 2-in-1 and is regrinded once purging selection three times, mog -38 μm content is 80~85%, and dosing be 100~500g/t, and floatation concentration is 30~40%, and flotation time is 3~10min, Obtain chats 6 and mine tailing 2；By the return to step 3 of chats 6) primary cleaning in, and successively by two in step 3) and step 4) Section regrinds three sections and cleans six sections of selected acquisition graphite concentrate products；
6) return to step 3 of chats 3 for obtaining step 4)) recleaning in, and successively by step 3) and step 4) In one section regrind three sections clean five sections it is selected obtain graphite concentrate products；
7) by step 4) obtain the return to step 4 of chats 4) triple cleaning in, and successively pass through step 4) in three sections Clean four sections of selected acquisition graphite concentrate products；
8) by step 4) obtain the return to step 4 of chats 5) once scouring in, and successively pass through step 4) in three sections Clean three sections of selected acquisition graphite concentrate products；
9) by step 4) obtain the return to step 4 of chats 6) secondary scouring in, and successively pass through step 4) in two sections Clean two sections of selected acquisition graphite concentrate products.
Compared with prior art, beneficial effects of the present invention are：
The present invention replaces the straight of routine using pre-classification-difference roughing-selected gravity treatment of merging-flotation combined new technology The floating purification by mineral technique of mill is connect, the clay mineral of high clay Fine particle processing mineral and Fine particle processing is advance by gravity treatment Classification is come, and then roughing, merging are selected respectively, use different roughing conditions for thick, thin product, effectively solve height Long flow path, efficiency are low, the rate of recovery is low etc., the essence obtained after purification by mineral be present when directly mill is floating in clay Fine particle processing Mineral products, it fixes carbon content >=95%, the rate of recovery >=90%.
Brief description of the drawings
Fig. 1 is the process chart of the purification by mineral method of the high clay Fine particle processing of the present invention；
Fig. 2 is the process chart of embodiments of the invention 1；
Fig. 3 is the process chart of embodiments of the invention 2；
Fig. 4 is the process chart of the comparative example of the present invention.
Embodiment
1-3 and technical scheme is further illustrated by embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the purification by mineral method of the high clay Fine particle processing of the present invention, be it is a kind of using pre-classification- Selected gravity treatment-flotation combined the new technology of roughing-merging respectively, it include one section of classification, two sections of roughings, one section scan, three sections Regrind, three sections clean, six sections it is selected；Partition size is 10~20 μm, clay mineral is separated as far as possible with Fine particle processing；Most The concentrate product obtained eventually fixes carbon content >=95%, the rate of recovery >=90%.The present invention using gravity treatment-flotation combined new work Skill, effectively solve high clay Fine particle processing and long flow path, efficiency are low, the rate of recovery is low etc. be present when directly mill is floating, carry A kind of new technology for efficiently, economically and reasonably developing high clay Fine particle processing ore deposit is supplied.
Embodiment 1
A kind of purification by mineral method of high clay Fine particle processing, its process chart is as shown in Fig. 2 including following step Suddenly：
(1) be crushed to high clay Fine particle processing raw ore (fixed carbon content 21.48%, clay mineral content 43%)- Carry out smashing slurry after 2cm, it is 30% to smash slurry concentration, and dispersant dosage is 1 ‰, and it is 20min to smash the slurry time；The slurry smash after starching is entered Row classification, partition size are 20 μm, obtain+20 μm of products I and -20 μm of products II；
(2) floating agent is added in -20 μm of products II obtained to step (1) and carries out roughing, quick lime dosage is 2000g/t, calgon dosage 2000g/t, kerosene dosage 100g/t, No. 2 oily dosage 40g/t, floatation concentration 11%, are floated It is 15min to select the time, obtains rough concentrate A and mine tailing 1；
(3) floating agent is added in+20 μm of products I obtained to step (1) and carries out roughing, quick lime dosage is 1000g/ T, calgon dosage 1500g/t, kerosene dosage 150g/t, No. 2 oily dosage 40g/t, floatation concentration 35%, flotation time For 10min, rough concentrate and chats 0 are obtained；Rough concentrate is subjected to primary cleaning, quick lime dosage is 500g/t, calgon Dosage 1000g/t, waterglass dosage 500g/t, floatation concentration 21%, flotation time 10min, obtain primary cleaning concentrate With chats 1；Primary cleaning concentrate is once regrinded into recleaning, -38 μm of contents of mog are 73.28%, waterglass Dosage 250g/t, floatation concentration 17%, flotation time 10min, obtain recleaning concentrate B and chats 2；
(4) the recleaning concentrate B that the rough concentrate A and step (3) obtained step (2) is obtained, which merges, carries out secondary regrind Triple cleaning, -38 μm of contents of mog are 92.46%, waterglass dosage 100g/t, kerosene dosage 50g/t, No. 2 oily dosages 30g/t, floatation concentration 13%, flotation time 8min, obtain triple cleaning concentrate and chats 3；Triple cleaning concentrate is entered Row once clean four times it is selected, the scouring time is 2min, waterglass dosage 100g/t, floatation concentration 11%, and flotation time is 8min, obtain four selected concentrate and chats 4；By four selected concentrate carry out it is secondary clean five times it is selected, cleaning the time is 3min, waterglass dosage 100g/t, floatation concentration 10%, flotation time 8min, obtain five selected concentrate and chats 5； By five selected concentrate clean three times six times it is selected, the scouring time is 4min, floatation concentration 9%, and flotation time is 8min, obtain graphite concentrate product and chats 6；
(5) chats 0 that obtains step (3), chats 1, chats is 2-in-1 and is regrinded once purging selection three times, and mog- 38 μm of contents are 81.62%, waterglass dosage 100g/t, kerosene dosage 50g/t, No. 2 oily dosage 30g/t, and floatation concentration is 31%, flotation time 8min, obtain chats 6 and mine tailing 2；By in the primary cleaning of the return to step of chats 6 (3), and pass through successively Two sections crossed in step (3) and step (4) regrind three sections and clean six sections of selected acquisition graphite concentrate products；
(6) in the recleaning for the return to step of chats 3 (3) for obtaining step (4), and successively by step (3) and step Suddenly one section in (4) regrinds three sections and cleans five sections of selected acquisition graphite concentrate products；
(7) in the triple cleaning for the return to step of chats 4 (4) for obtaining step (4), and pass through successively in step (4) Three sections are cleaned four sections of selected acquisition graphite concentrate products；
(8) in the once scouring for the return to step of chats 5 (4) for obtaining step (4), and pass through successively in step (4) Three sections are cleaned three sections of selected acquisition graphite concentrate products；
(9) in the secondary scouring for the return to step of chats 6 (4) for obtaining step (4), and pass through successively in step (4) Two sections are cleaned two sections of selected acquisition graphite concentrate products.
The present embodiment products obtained therefrom index is shown in Table 1.
Table 1
Product Yield/% Fixed carbon content/% The rate of recovery/%
Concentrate 21.51 95.46 95.57
Mine tailing 1 47.26 0.74 1.63
Mine tailing 2 31.23 1.93 2.80
It is total 100.00 21.48 100.00
Embodiment 2
A kind of purification by mineral method of high clay Fine particle processing, its process chart is as shown in figure 3, including following step Suddenly：
(1) be crushed to high clay Fine particle processing raw ore (fixed carbon content 15.57%, clay mineral content 38%)- Carry out smashing slurry after 2cm, it is 30% to smash slurry concentration, and dispersant dosage is 1 ‰, and it is 20min to smash the slurry time；The slurry smash after starching is entered Row classification, partition size are 15 μm, obtain+15 μm of products I and -15 μm of products II；
(2) floating agent is added in -15 μm of products II obtained to step (1) and carries out roughing, quick lime dosage is 2000g/t, calgon dosage 2000g/t, kerosene dosage 100g/t, No. 2 oily dosage 40g/t, floatation concentration 10%, are floated It is 15min to select the time, obtains rough concentrate A and mine tailing 1；
(3) floating agent is added in+15 μm of products I obtained to step (1) and carries out roughing, quick lime dosage is 1000g/ T, calgon dosage 1500g/t, kerosene dosage 150g/t, No. 2 oily dosage 40g/t, floatation concentration 36%, flotation time For 10min, rough concentrate and chats 0 are obtained；Rough concentrate is subjected to primary cleaning, quick lime dosage is 500g/t, calgon Dosage 1000g/t, waterglass dosage 500g/t, floatation concentration 20%, flotation time 10min, obtain primary cleaning concentrate With chats 1；Primary cleaning concentrate is once regrinded into recleaning, -38 μm of contents of mog are 74.31%, waterglass Dosage 250g/t, floatation concentration 16%, flotation time 10min, obtain recleaning concentrate B and chats 2；
(4) the recleaning concentrate B that the rough concentrate A and step (3) obtained step (2) is obtained, which merges, carries out secondary regrind Triple cleaning, -38 μm of contents of mog are 93.17%, waterglass dosage 100g/t, kerosene dosage 50g/t, No. 2 oily dosages 30g/t, floatation concentration 12%, flotation time 8min, obtain triple cleaning concentrate and chats 3；Triple cleaning concentrate is entered Row once clean four times it is selected, the scouring time is 2min, waterglass dosage 100g/t, floatation concentration 10%, and flotation time is 8min, obtain four selected concentrate and chats 4；By four selected concentrate carry out it is secondary clean five times it is selected, cleaning the time is 3min, waterglass dosage 100g/t, floatation concentration 9%, flotation time 8min, obtain five selected concentrate and chats 5；Will Five selected concentrate clean three times six times it is selected, the scouring time is 4min, floatation concentration 9%, flotation time 8min, Obtain graphite concentrate product and chats 6；
(5) chats 0 that obtains step (3), chats 1, chats is 2-in-1 and is regrinded once purging selection three times, and mog- 38 μm of contents are 82.33%, waterglass dosage 100g/t, kerosene dosage 50g/t, No. 2 oily dosage 30g/t, and floatation concentration is 31%, flotation time 8min, obtain chats 6 and mine tailing 2；By in the primary cleaning of the return to step of chats 6 (3), and pass through successively Two sections crossed in step (3) and step (4) regrind three sections and clean six sections of selected acquisition graphite concentrate products；
(6) in the recleaning for the return to step of chats 3 (3) for obtaining step (4), and successively by step (3) and step Suddenly one section in (4) regrinds three sections and cleans five sections of selected acquisition graphite concentrate products；
(7) in the triple cleaning for the return to step of chats 4 (4) for obtaining step (4), and pass through successively in step (4) Three sections are cleaned four sections of selected acquisition graphite concentrate products；
(8) in the once scouring for the return to step of chats 5 (4) for obtaining step (4), and pass through successively in step (4) Three sections are cleaned three sections of selected acquisition graphite concentrate products；
(9) in the secondary scouring for the return to step of chats 6 (4) for obtaining step (4), and pass through successively in step (4) Two sections are cleaned two sections of selected acquisition graphite concentrate products.
The present embodiment products obtained therefrom index is shown in Table 2.
Table 2
Product Yield/% Fixed carbon content/% The rate of recovery/%
Concentrate 15.35 95.31 93.98
Mine tailing 1 41.77 0.58 1.56
Mine tailing 2 42.88 1.62 4.46
It is total 100.00 15.57 100.00
Comparative example
A kind of routine of high clay Fine particle processing directly grinds floating beneficiation method, and its process chart is as shown in figure 4, bag Include following steps：
(1) be crushed to high clay Fine particle processing raw ore (fixed carbon content 18.21%, clay mineral content 41%)- Corase grind roughing is carried out after 2cm, -38 μm of contents of mog are 61.35%, and quick lime dosage is 3000g/t, and calgon is used 2000g/t is measured, kerosene dosage 200g/t, No. 2 oily dosage 50g/t, floatation concentration 25%, flotation time 20min, is obtained thick Concentrate and thick mine tailing；
(2) floating agent being added in the thick mine tailing obtained into step (1) to be scanned, quick lime dosage is 1000g/t, Calgon dosage 2000g/t, kerosene dosage 80g/t, No. 2 oily dosage 40g/t, floatation concentration 20%, flotation time 10min, obtain chats 0 and mine tailing；
(3) floating agent is added in the rough concentrate obtained into step (1) and carries out primary cleaning, quick lime dosage is 500g/t, calgon dosage 1000g/t, waterglass dosage 500g/t, floatation concentration 10%, flotation time 10min, Obtain primary cleaning concentrate and chats 1；Primary cleaning concentrate is once regrinded into recleaning, -38 μm of contents of mog For 75.58%, waterglass dosage 250g/t, floatation concentration 9%, flotation time 10min, obtain recleaning concentrate and in Ore deposit 2；By recleaning concentrate carry out it is secondary regrind triple cleaning, -38 μm of contents of mog are 91.72%, waterglass dosage 250g/t, kerosene dosage 50g/t, No. 2 oily dosage 30g/t, floatation concentration 8%, flotation time 10min, is obtained smart three times Concentrate selection and chats 3；By triple cleaning concentrate regrinded three times four times it is selected, -38 μm of contents of mog be 93.47%, Waterglass dosage 100g/t, floatation concentration 8%, flotation time 8min, obtain four selected concentrate and chats 4；By four times Selected concentrate regrind for four times five times it is selected, -38 μm of contents of mog are 94.58%, waterglass dosage 100g/t, flotation Concentration is 7%, flotation time 8min, obtains five selected concentrate and chats 5；By five selected concentrate carry out six times it is selected, Floatation concentration is 7%, flotation time 8min, obtains six selected concentrate and chats 6；
(4) chats 0 and chats 1 obtained step (2) and step (3) merges in the corase grind of return to step (1), and successively Six sections of selected acquisition graphite concentrate products are regrinded by one section of corase grind, one section of four sections of roughing in step (1) and step (3)；
(5) by the primary cleaning of the return to step of chats 2 (3) obtained in step (3), and pass through successively in step (3) Four sections regrind six sections it is selected obtain graphite concentrate products；
(6) by once the regrinding of the return to step of chats 3 (3) obtained in step (3), and pass through successively in step (3) Four sections regrind five sections it is selected obtain graphite concentrate products；
(7) the secondary of the return to step of chats 4 (3) obtained in step (3) is regrinded, and successively passed through in step (3) Three sections regrind four sections it is selected obtain graphite concentrate products；
(8) by the regrinding three times of the return to step of chats 5 (3) obtained in step (3), and pass through successively in step (3) Two sections regrind three sections it is selected obtain graphite concentrate products；
(9) during four times of the return to step of chats 6 (3) obtained in step (3) are regrinded, and pass through successively in step (3) One section regrind two sections it is selected obtain graphite concentrate products；
This comparative example products obtained therefrom index is shown in Table 3.
Table 3
Product Yield/% Fixed carbon content/% The rate of recovery/%
Concentrate 16.71 95.07 87.24
Mine tailing 83.29 2.79 12.76
It is total 100.00 18.21 100.00
Above example is only used for the method detailed for illustrating the present invention, the invention is not limited in above-mentioned method detailed, i.e., Do not mean that the present invention has to rely on above-mentioned method detailed and could implemented.Person of ordinary skill in the field is it will be clearly understood that right Any improvement of the present invention, addition, the selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention Deng within the scope of all falling within protection scope of the present invention and disclosing.

Claims (10)

  1. A kind of 1. purification by mineral method of high clay Fine particle processing, it is characterised in that comprise the following steps：
    1) it will carry out smashing slurry after high clay Fine particle processing crushing raw ore extremely -2cm, the slurry smash after starching is classified, obtained Coarse granule product I and fine grained product II；
    2) floating agent is added in the fine grained product II obtained to step 1) and carries out roughing, obtain rough concentrate A and mine tailing 1；
    3) floating agent is added in the coarse granule product I obtained to step 1) and carries out roughing, obtain rough concentrate and chats 0；Will be thick Concentrate carries out primary cleaning, obtains primary cleaning concentrate and chats 1；Primary cleaning concentrate is once regrinded, recleaning, Obtain recleaning concentrate B and chats 2；
    4) the recleaning concentrate B merging progress of rough concentrate A and step 3) acquisition obtained step 2) is secondary to regrind, is smart three times Choosing, obtain triple cleaning concentrate and chats 3；Triple cleaning concentrate is subjected to once scouring, four selected, four selected essences of acquisition Ore deposit and chats 4；Four selected concentrate are subjected to secondary scouring, five selected, acquisition five selected concentrate and chats 5；By five times Selected concentrate carries out scouring three times, six selected, acquisition graphite concentrate product and chats 6；
    5) chats 0 that obtains step 3), chats 1, chats is 2-in-1 and is regrinded three times, once purging selection, acquisition chats 6 and tail Ore deposit 2；By the return to step 3 of chats 6) primary cleaning in, and regrind three sections of wipings by two sections in step 3) and step 4) successively Wash six sections of selected acquisition graphite concentrate products；
    6) return to step 3 of chats 3 for obtaining step 4)) recleaning in, and successively by step 3) and step 4) Regrind three sections for one section and clean five sections of selected acquisition graphite concentrate products；
    7) by step 4) obtain the return to step 4 of chats 4) triple cleaning in, and successively pass through step 4) in three sections scouring Four sections of selected acquisition graphite concentrate products；
    8) by step 4) obtain the return to step 4 of chats 5) once scouring in, and successively pass through step 4) in three sections scouring Three sections of selected acquisition graphite concentrate products；
    9) by step 4) obtain the return to step 4 of chats 6) secondary scouring in, and successively pass through step 4) in two sections scouring Two sections of selected acquisition graphite concentrate products.
  2. 2. purification by mineral method according to claim 1, it is characterised in that in step 1), it is described smash slurry concentration be 20~ 60%, the time for smashing slurry is 5~60min；
    Preferably, the slurry process of smashing adds dispersant, and the dispersant dosage is 0.5~4 ‰, and the dispersant is six inclined phosphorus One kind in sour sodium, sodium pyrophosphate, polyacrylamide；
    Preferably, the partition size of the classification is 10~20 μm.
  3. 3. purification by mineral method according to claim 1 or 2, it is characterised in that in step 2), roughing flotation medicine The dosage of agent is 3000~5000g/t, and the floatation concentration is 10~15%, and the flotation time is 5~20min.
  4. 4. the purification by mineral method according to one of claim 1-3, it is characterised in that in step 3), the roughing is used floating The dosage for selecting medicament is 2000~3000g/t, and the floatation concentration is 30~40%, and the flotation time is 5~15min；
    Preferably, in step 3), the primary cleaning floating agent dosage is 1500~2500g/t, floatation concentration is 15~ 25%, the flotation time is 3~10min；
    Preferably, in step 3), it is described once regrind after -38 μm of contents of mog be 70~75%, the recleaning It is 100~500g/t with the dosage of floating agent, floatation concentration is 15~25%, and the flotation time is 3~10min.
  5. 5. the purification by mineral method according to one of claim 1-4, it is characterised in that described secondary to regrind in step 4) - 38 μm of contents of mog afterwards are 90~95%；
    Preferably, in step 4), the dosage of the triple cleaning floating agent is 100~500g/t, floatation concentration is 10~ 20%, the flotation time is 3~10min；
    Preferably, in step 4), the scouring time once cleaned is 1~5min；
    Preferably, in step 4), four selected dosages with floating agent are 0~300g/t, floatation concentration is 10~ 20%, the flotation time is 3~10min；
    Preferably, in step 4), the scouring time of the secondary scouring is 1~5min；
    Preferably, in step 4), five selected dosages with floating agent are 0~300g/t, floatation concentration is 5~ 15%, the flotation time is 3~10min；
    Preferably, in step 4), the scouring time cleaned three times is 1~5min；
    Preferably, in step 4), six selected dosages with floating agent are 0~300g/t, floatation concentration is 5~ 15%, the flotation time is 3~10min.
  6. 6. the purification by mineral method according to one of claim 1-5, it is characterised in that described to regrind three times in step 5) - 38 μm of contents of mog are 80~85% afterwards；
    Preferably, in step 5), the dosage of the floating agent of the once purging selection is 100~500g/t, floatation concentration is 30~ 40%, the flotation time is 3~10min.
  7. 7. the purification by mineral method according to one of claim 1-6, it is characterised in that the high clay Fine particle processing is former The content of clay class mineral is 30~50% in ore deposit, and fixed carbon content is 10~30%.
  8. 8. the purification by mineral method according to one of claim 1-7, it is characterised in that the roughing, it is selected, scan process In used floating agent be quick lime, in sodium metasilicate, calgon, sodium pyrophosphate, kerosene, diesel oil, No. 2 oil, No. 4 oil It is a kind of or at least two mixture.
  9. 9. the purification by mineral method according to one of claim 1-8, it is characterised in that in step 1), the shattering process Crushed using jaw crusher or double-roll crusher；
    Preferably, in step 1), described classification process is classified using hydrocyclone；
    Preferably, the roughing, it is selected, scan process using RK/FD types single-trough flotating machine carry out flotation；
    Preferably, the process of regrinding is regrinded using conical ball mill.
  10. 10. the purification by mineral method according to one of claim 1-9, it is characterised in that described its fixed carbon of concentrate product Content >=95%, the rate of recovery >=90%.
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CN108160313A (en) * 2017-12-21 2018-06-15 中南大学 A kind of method of cupric oxide ore thickness grading-reinforcing fine fraction sulfide flotation
CN108516562A (en) * 2018-06-07 2018-09-11 苏州中材非金属矿工业设计研究院有限公司 A kind of purifying technique of Concave-convex clay rod
CN109433434A (en) * 2018-11-13 2019-03-08 长沙万荣粉体设备科技有限公司 A kind of graphite separation system and method
CN111957444A (en) * 2020-08-20 2020-11-20 鸡西市普晨石墨有限责任公司 Low-grade separation protection large-scale natural graphite beneficiation method
CN114178053A (en) * 2021-12-07 2022-03-15 湖南润众新材料科技有限公司 Flotation method of aphanitic graphite
CN114887775A (en) * 2022-03-29 2022-08-12 中南大学 Method for efficiently separating and recycling graphite from vanadium leaching slag

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CN111957444A (en) * 2020-08-20 2020-11-20 鸡西市普晨石墨有限责任公司 Low-grade separation protection large-scale natural graphite beneficiation method
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CN114178053B (en) * 2021-12-07 2024-05-17 湖南润众新材料科技有限公司 Flotation method of aphanitic graphite
CN114887775A (en) * 2022-03-29 2022-08-12 中南大学 Method for efficiently separating and recycling graphite from vanadium leaching slag

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