CN107377200B - 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 PDFInfo
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- CN107377200B CN107377200B CN201710723114.2A CN201710723114A CN107377200B CN 107377200 B CN107377200 B CN 107377200B CN 201710723114 A CN201710723114 A CN 201710723114A CN 107377200 B CN107377200 B CN 107377200B
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- 238000000034 method Methods 0.000 title claims abstract description 77
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 64
- 239000011707 mineral Substances 0.000 title claims abstract description 64
- 238000000746 purification Methods 0.000 title claims abstract description 44
- 239000010419 fine particle Substances 0.000 title claims abstract description 38
- 239000004927 clay Substances 0.000 title claims abstract description 31
- 239000012141 concentrate Substances 0.000 claims abstract description 134
- 238000005188 flotation Methods 0.000 claims abstract description 91
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000007667 floating Methods 0.000 claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 8
- 235000010755 mineral Nutrition 0.000 claims description 61
- 239000010439 graphite Substances 0.000 claims description 55
- 229910002804 graphite Inorganic materials 0.000 claims description 55
- 238000009991 scouring Methods 0.000 claims description 52
- 238000004140 cleaning Methods 0.000 claims description 50
- 239000003795 chemical substances by application Substances 0.000 claims description 34
- 239000002002 slurry Substances 0.000 claims description 28
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 22
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 20
- 239000003814 drug Substances 0.000 claims description 13
- 239000003350 kerosene Substances 0.000 claims description 13
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 12
- 239000000292 calcium oxide Substances 0.000 claims description 11
- 235000012255 calcium oxide Nutrition 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 9
- 229940095686 granule product Drugs 0.000 claims description 6
- 239000000686 essence Substances 0.000 claims description 4
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 3
- 238000009955 starching Methods 0.000 claims description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 239000002734 clay mineral Substances 0.000 abstract description 10
- 230000005484 gravity Effects 0.000 abstract description 6
- 235000019353 potassium silicate Nutrition 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a kind of purification by mineral methods of high clay Fine particle processing.The purification by mineral method of high clay Fine particle processing of the invention, including one section of classification, two sections of roughings, one section scan, three sections regrind, three sections clean, six Duan Jingxuan；Partition size is 10~20 μm, separates clay mineral as far as possible with Fine particle processing；Fixed carbon content >=95% of the concentrate product finally obtained, the rate of recovery >=90%.For the present invention using the flotation combined technique of gravity treatment-, the high clay Fine particle processing of effective solution, which directly grind when floating, has that long flow path, low efficiency, the rate of recovery are low etc..
Description
Technical field
The invention belongs to graphite purification by mineral technical fields, are related to a kind of purification by mineral side of high clay Fine particle processing
Method.
Background technique
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, thermally conductive, conductive, be widely used in metallurgy, machinery, electronics, chemical industry, light industry, military project, national defence, space flight and
The industries such as refractory material are 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
It is 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
High-quality flaky graphite resource is gradually consumed in range, while graphite demand is being continuously increased, and Fine particle processing is opened
It sends out and utilizes and be receiving attention.
Graphite flakes are bigger, and washability is better.The country's common purification by mineral method of Fine particle processing is floatation at present,
The general technology of use are as follows: once roughly grind roughing, once purging selection, repeatedly regrind, is repeatedly selected.
CN105289835A discloses a kind of low-grade Fine particle processing purification by mineral technique, it includes primary corase grinding roughing
Process once regrinds 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%, recovery rate of concentrate 90~95%.The hair
It is bright that graphite and the abundant monomer dissociation of gangue mineral are made using primary regrind, and regrinded in follow-up process with scouring substitution, it cleans
Step can play dispersion concentrate foam and clean mineral particle surface effect, and have low energy consumption, Mediawear is small, technique letter
The advantages such as single.
CN103072975A discloses a kind of low-grade aphanitic graphite purification by mineral method, first will fixed carbon content
Aphanitic graphite crushing raw ore, the ore grinding of 45-80%；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 mine in ore through multistage regrinding and reconcentration
Object obtains flotation final concentrate；Flotation final concentrate passes through high-gradient magnetic separation, deviates from rider mineral therein, can get full
The product I of sufficient trade mark WT88 or WT88 requirements above.Regrinding and reconcentration chats and magnetic middling ore concentration are selected again, be can get and are met the trade mark
The product II that W80 is required, overall recovery are greater than 80%.This method is low to raw ore fixed carbon content requirement, and it is miscellaneous that iron content is effectively reduced
Matter, treating capacity is big, and production cost is low, environmental protection.
But in graphite ore it is not merely graphite, have paragenous mineral.The general paragenous mineral of graphite is kaolin, green
The clay minerals such as mudstone and quartz, pyrite, calcite etc., and clay mineral generally has the characteristics that fine size, viscosity are high.
When Fine particle processing CLAY MINERALS AND THEIR SIGNIFICANCE content is higher, the purification by mineral method floated using conventional directly mill, clay mineral
In the presence of flotation environment can be deteriorated, Fine particle processing flotation effect is influenced, the problems such as there are long flow path, low efficiency, the low rate of recovery.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of purification by mineral of high clay Fine particle processing
Method, using the flotation combined new process of gravity treatment-, there are processes when the high clay Fine particle processing of effective solution directly grinds floating
The problems such as length, low efficiency, low rate of recovery, fixed carbon content >=95% of the concentrate product finally obtained, the rate of recovery >=90%.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of purification by mineral method of high clay Fine particle processing, includes the following steps:
1) it will carry out smashing slurry after high clay Fine particle processing crushing raw ore to -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 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, is 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 once cleaned, four times it is selected, obtain four essences
Concentrate selection and chats 4；Four selected concentrate are subjected to secondary scouring, five selected, five selected concentrate of acquisition and chats 5；It will
Five selected concentrate are cleaned three times, six selected, acquisition graphite concentrate product and chats 6；
5) chats 0, chats 1, chats 2 merging that step 3) obtains are regrinded, once purging selection three times, obtains chats 7
With tailing 2；By 7 return step 3 of chats) primary cleaning in, and successively regrind three by two sections in step 3) and step 4)
Section cleans six sections of selected acquisition graphite concentrate products；
6) 3 return step 3 of chats for obtaining step 4)) recleaning in, and successively by step 3) and step 4)
In one section regrind three sections of scourings, five sections of selected acquisition graphite concentrate products；
7) 4 return step 4 of chats for obtaining step 4)) triple cleaning in, and successively by three sections in step 4)
Clean four sections of selected acquisition graphite concentrate products；
8) by step 4) obtain 5 return step 4 of chats) it is primary scouring in, and successively pass through step 4) in three sections
Clean three sections of selected acquisition graphite concentrate products；
9) 6 return step 4 of chats for obtaining step 4)) secondary scouring in, and successively by two sections in step 4)
Clean two sections of selected acquisition graphite concentrate products.
In step 1), the slurry concentration of smashing is 20~60%, described to smash during slurry concentration refers to and smash slurry, after crushing
Mineral be added to the water it is rear made of ore pulp Minerals concentration, such as during smashing slurry, after broken mineral are added to the water
Mineral quality concentration is 20%, 30%, 40%, 50%, 60%；The time for smashing slurry be 5~60min, such as smash slurry when
Between be 5min, 10min, 15min, 20min, 25min, 30min, 35min, 40min, 45min, 50min, 55min, 60min.
In step 1), dispersing agent is added in the slurry process of smashing, and the dispersant dosage is 0.5~4 ‰, such as dispersing agent
Dosage is 0.5 ‰, 1 ‰, 1.5 ‰, 2 ‰, 2.5 ‰, 3 ‰, 3.5 ‰, 4 ‰, and the dispersing agent is calgon, pyrophosphoric acid
One of sodium, polyacrylamide.
In step 1), the partition size of the classification is 10~20 μm, such as 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, will be to thick
The mineral of choosing are added to the water to form ore pulp, in ore pulp to the mass concentration of roughing mineral be 10%, 11%, 12%, 13%,
14%, 15%；The flotation time be 5~20min, such as flotation time be 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, the dosage is quality dosage；Described is floating
Concentration is selected to refer to, when flotation, the mass concentration of the ore pulp Minerals formed after mineral to be processed are added to the water, following flotation
This is no longer going to repeat them for concentration meaning.
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%, 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%, 20%, 21%, 22%, 23%, 24%, 25%；The flotation time be 3~10min, such as 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 grinding fineness be 70~75%, i.e., after primary regrind,
The mass content of -38 μm of fineness of ore grinding is 70%, 71%, 72%, 73%, 74%, 75%；Recleaning flotation medicine
The dosage of agent be 100~500g/t, such as the dosage of recleaning 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%, 22%, 23%, 24%, 25%；The flotation time be 3~10min, such as flotation time be 3min, 4min, 5min,
6min、7min、8min、9min、10min。
In step 4), it is described it is secondary regrind after -38 μm of contents of grinding fineness be 90~95%, such as it is secondary regrind after
- 38 μm of contents of grinding fineness 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%, 20%；The flotation time be 3~10min, such as flotation time be 3min, 4min, 5min, 6min, 7min, 8min,
9min、10min。
In step 4), the scouring time once cleaned be 1~5min, such as 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 selected 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), 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 selected 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 be 1~5min, such as 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 selected 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 5), described -38 μm of contents of rear grinding fineness of regrinding three times are 80~85%, such as regrind rear ore grinding 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 be 3~10min, such as flotation time be 3min, 4min, 5min, 6min, 7min, 8min, 9min,
10min。
It should be noted that " two sections are regrinded three sections of six Duan Jingxuan of scouring " in step 5) refers to that have passed through twice honed again
Cheng Sandao cleans six refining process of process, it is therefore an objective to step 3), 4) in regrind cleaned in selected several times several times several times
" secondary " distinguishes, step 6), 7), 8), 9) in " section " similarly, details are not described herein.
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%, 45%, 46%, 47%, 48%, 49%, 50%；Fixed carbon content is 10~30%, for example, fixed carbon content be 10%,
11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%,
26%, 27%, 28%, 29%, 30%.
The roughing, it is selected, scan used in the process of floating agent be quick lime, sodium metasilicate (waterglass), six inclined phosphorus
One of sour sodium, sodium pyrophosphate, kerosene, diesel oil, No. 2 oil, 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), the classification process is classified using hydrocyclone；
Preferably, the roughing, the selected, process of scanning are all made of RK/FD type single-trough flotating machine and 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 a preferred solution of the present invention, the purification by mineral method of the high clay Fine particle processing, includes the following steps:
1) it will carry out smashing slurry after high clay Fine particle processing crushing raw ore to -2cm, smashing slurry concentration is 20~60%, dispersion
Agent dosage is 0.5~4 ‰, and smashing the slurry time is 5~60min；The slurry smash after starching is classified, partition size is 10~20 μ
M obtains coarse granule product I and fine grained product II；
2) to step 1) obtain fine grained product II in be added 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 tailing 1；
3) to step 1) obtain coarse granule product I in be added 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, obtain one
Secondary selected concentrate and chats 1；Primary cleaning concentrate is carried out once to regrind recleaning, -38 μm of contents of grinding fineness 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) rough concentrate A and step 3) that step 2) obtains the recleaning concentrate B obtained are merged and carries out secondary regrinding three
Secondary selected, -38 μm of contents of grinding fineness 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 are 1~5min, and dosing is 0~300g/t, and floatation concentration is 10~20%, flotation time for 3~
10min obtains four selected concentrate and chats 4；Selected by four selected concentrate progress secondary scouring five times, cleaning the time is 1
~5min, dosing are 0~300g/t, and floatation concentration is 5~15%, and flotation time is 3~10min, and acquisition five times selected
Concentrate and chats 5；By five selected concentrate clean three times six times it is selected, the scourings 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) once purging selection, grinding fineness -38 are regrinded into chats 0, chats 1, chats 2 merging that step 3) obtains three times
μm content is 80~85%, and dosing is 100~500g/t, and floatation concentration is 30~40%, and flotation time is 3~10min,
Obtain chats 7 and tailing 2；By 7 return step 3 of chats) primary cleaning in, and successively by two in step 3) and step 4)
Section regrinds three sections of scourings, six sections of selected acquisition graphite concentrate products；
6) 3 return step 3 of chats for obtaining step 4)) recleaning in, and successively by step 3) and step 4)
In one section regrind three sections of scourings, five sections of selected acquisition graphite concentrate products；
7) 4 return step 4 of chats for obtaining step 4)) triple cleaning in, and successively by three sections in step 4)
Clean four sections of selected acquisition graphite concentrate products；
8) by step 4) obtain 5 return step 4 of chats) it is primary scouring in, and successively pass through step 4) in three sections
Clean three sections of selected acquisition graphite concentrate products；
9) 6 return step 4 of chats for obtaining step 4)) secondary scouring in, and successively by two sections in step 4)
Clean two sections of selected acquisition graphite concentrate products.
Compared with prior art, the invention has the benefit that
The present invention replaces the straight of routine using the flotation combined new process of pre-classification-difference roughing-selected gravity treatment-of merging
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 preparatory by gravity treatment
Classification is come, then respectively roughing, merge selected, use different roughing condition, effective solution height for thick, thin product
The problems such as there are long flow path, low efficiency, the low rate of recovery when clay Fine particle processing directly grinds floating, the essence obtained after purification by mineral
Mineral products fix carbon content >=95%, the rate of recovery >=90%.
Detailed description of the invention
Fig. 1 is the process flow chart of the purification by mineral method of high clay Fine particle processing of the invention；
Fig. 2 is the process flow chart of the embodiment of the present invention 1；
Fig. 3 is the process flow chart of the embodiment of the present invention 2；
Fig. 4 is the process flow chart of comparative example of the invention.
Specific embodiment
With reference to the accompanying drawing 1-3 and pass through specific embodiment to further illustrate the technical scheme of the present invention.
As shown in Figure 1, the purification by mineral method of high clay Fine particle processing of the invention, is a kind of using pre-classification-
The selected flotation combined new process of gravity treatment-of roughing-merging respectively, it include one section of classification, two sections of roughings, one section scan, three sections
It regrinds, three sections of scourings, six Duan Jingxuan；Partition size is 10~20 μm, separates clay mineral as far as possible with Fine particle processing；Most
Fixed carbon content >=95% of the concentrate product obtained eventually, the rate of recovery >=90%.The present invention new work flotation combined using gravity treatment-
It the problems such as skill, there are long flow path, low efficiency, the low rate of recovery when the high clay Fine particle processing of effective solution directly grinds floating, mentions
A kind of new process for efficiently, economically and reasonably developing and using high clay Fine particle processing mine is supplied.
Embodiment 1
A kind of purification by mineral method of high clay Fine particle processing, process flow chart is as shown in Fig. 2, include following step
It is rapid:
(1) be crushed to high clay Fine particle processing raw ore (fixed carbon content 21.48%, clay mineral content 43%)-
It carries out smashing slurry after 2cm, smashing slurry concentration is 30%, and dispersant dosage is 1 ‰, and smashing the slurry time is 20min；Will smash slurry after slurry into
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 consumption 100g/t, No. 2 oily dosage 40g/t, floatation concentration 11% float
Selecting the time is 15min, obtains rough concentrate A and 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 consumption 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 carried out once to regrind recleaning, -38 μm of contents of grinding fineness are 73.28%, waterglass
Dosage 250g/t, floatation concentration 17%, flotation time 10min obtain recleaning concentrate B and chats 2；
(4) rough concentrate A and step (3) that step (2) obtain the recleaning concentrate B obtained are merged and carries out secondary regrind
Triple cleaning, -38 μm of contents of grinding fineness are 92.46%, waterglass dosage 100g/t, kerosene consumption 50g/t, No. 2 oily dosages
30g/t, floatation concentration 13%, flotation time 8min obtain triple cleaning concentrate and chats 3；By triple cleaning concentrate into
Row is primary clean four times it is selected, the scourings time is 2min, waterglass dosage 100g/t, floatation concentration 11%, and flotation time is
8min obtains four selected concentrate and chats 4；Selected by four selected concentrate progress secondary scouring five times, the scouring 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 scourings time is 4min, floatation concentration 9%, and flotation time is
8min obtains graphite concentrate product and chats 6；
(5) once purging selection, grinding fineness-are regrinded into chats 0, chats 1, chats 2 merging that step (3) obtain three times
38 μm of contents are 81.62%, waterglass dosage 100g/t, kerosene consumption 50g/t, No. 2 oily dosage 30g/t, and floatation concentration is
31%, flotation time 8min obtain chats 7 and tailing 2；By in the primary cleaning of 7 return step of chats (3), and successively pass through
Two sections crossed in step (3) and step (4) regrind three sections of scourings, six sections of selected acquisition graphite concentrate products；
(6) it in the recleaning for 3 return step of chats (3) for obtaining step (4), and successively by step (3) and walks
Suddenly one section in (4) regrinds three sections of scourings, five sections of selected acquisition graphite concentrate products；
(7) in the triple cleaning for 4 return step of chats (4) for obtaining step (4), and successively by step (4)
Three sections of scourings, four sections of selected acquisition graphite concentrate products；
(8) in the primary scouring for 5 return step of chats (4) for obtaining step (4), and successively by step (4)
Three sections of scourings, three sections of selected acquisition graphite concentrate products；
(9) in the secondary scouring for 6 return step of chats (4) for obtaining step (4), and successively by step (4)
Two sections of scourings, 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 |
| Tailing 1 | 47.26 | 0.74 | 1.63 |
| 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, process flow chart is as shown in figure 3, include following step
It is rapid:
(1) be crushed to high clay Fine particle processing raw ore (fixed carbon content 15.57%, clay mineral content 38%)-
It carries out smashing slurry after 2cm, smashing slurry concentration is 30%, and dispersant dosage is 1 ‰, and smashing the slurry time is 20min；Will smash slurry after slurry into
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 consumption 100g/t, No. 2 oily dosage 40g/t, floatation concentration 10% float
Selecting the time is 15min, obtains rough concentrate A and 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 consumption 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 carried out once to regrind recleaning, -38 μm of contents of grinding fineness are 74.31%, waterglass
Dosage 250g/t, floatation concentration 16%, flotation time 10min obtain recleaning concentrate B and chats 2；
(4) rough concentrate A and step (3) that step (2) obtain the recleaning concentrate B obtained are merged and carries out secondary regrind
Triple cleaning, -38 μm of contents of grinding fineness are 93.17%, waterglass dosage 100g/t, kerosene consumption 50g/t, No. 2 oily dosages
30g/t, floatation concentration 12%, flotation time 8min obtain triple cleaning concentrate and chats 3；By triple cleaning concentrate into
Row is primary clean four times it is selected, the scourings time is 2min, waterglass dosage 100g/t, floatation concentration 10%, and flotation time is
8min obtains four selected concentrate and chats 4；Selected by four selected concentrate progress secondary scouring five times, the scouring time is
3min, waterglass dosage 100g/t, floatation concentration 9%, flotation time 8min obtain five selected concentrate and chats 5；It will
Five selected concentrate clean three times six times it is selected, the scourings time is 4min, floatation concentration 9%, flotation time 8min,
Obtain graphite concentrate product and chats 6；
(5) once purging selection, grinding fineness-are regrinded into chats 0, chats 1, chats 2 merging that step (3) obtain three times
38 μm of contents are 82.33%, waterglass dosage 100g/t, kerosene consumption 50g/t, No. 2 oily dosage 30g/t, and floatation concentration is
31%, flotation time 8min obtain chats 7 and tailing 2；By in the primary cleaning of 7 return step of chats (3), and successively pass through
Two sections crossed in step (3) and step (4) regrind three sections of scourings, six sections of selected acquisition graphite concentrate products；
(6) it in the recleaning for 3 return step of chats (3) for obtaining step (4), and successively by step (3) and walks
Suddenly one section in (4) regrinds three sections of scourings, five sections of selected acquisition graphite concentrate products；
(7) in the triple cleaning for 4 return step of chats (4) for obtaining step (4), and successively by step (4)
Three sections of scourings, four sections of selected acquisition graphite concentrate products；
(8) in the primary scouring for 5 return step of chats (4) for obtaining step (4), and successively by step (4)
Three sections of scourings, three sections of selected acquisition graphite concentrate products；
(9) in the secondary scouring for 6 return step of chats (4) for obtaining step (4), and successively by step (4)
Two sections of scourings, 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 |
| Tailing 1 | 41.77 | 0.58 | 1.56 |
| 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 process flow chart is as shown in figure 4, packet
Include following steps:
(1) be crushed to high clay Fine particle processing raw ore (fixed carbon content 18.21%, clay mineral content 41%)-
Corase grinding roughing is carried out after 2cm, -38 μm of contents of grinding fineness are 61.35%, and quick lime dosage is 3000g/t, and calgon is used
2000g/t is measured, kerosene consumption 200g/t, No. 2 oily dosage 50g/t, floatation concentration 25%, flotation time 20min, acquisition is slightly
Concentrate and thick tailing；
(2) floating agent being added in the thick tailing obtained into step (1) to be scanned, quick lime dosage is 1000g/t,
Calgon dosage 2000g/t, kerosene consumption 80g/t, No. 2 oily dosage 40g/t, floatation concentration 20%, flotation time
10min obtains chats 0 and 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 carried out once to regrind recleaning, -38 μm of contents of grinding fineness
It is 75.58%, waterglass dosage 250g/t, floatation concentration 9%, flotation time 10min, acquisition recleaning concentrate is in
Mine 2；By recleaning concentrate carry out it is secondary regrind triple cleaning, -38 μm of contents of grinding fineness are 91.72%, waterglass dosage
250g/t, kerosene consumption 50g/t, No. 2 oily dosage 30g/t, floatation concentration 8%, flotation time 10min are 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 grinding fineness 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 grinding fineness are 94.58%, waterglass dosage 100g/t, flotation
Concentration is 7%, flotation time 8min, obtains five selected concentrate and chats 5；It is selected by five times selected concentrate progress six times,
Floatation concentration is 7%, flotation time 8min, obtains six selected concentrate and chats 6；
(4) chats 0 and chats 1 that step (2) and step (3) obtain are merged in the corase grinding of return step (1), and successively
Six sections of selected acquisition graphite concentrate products are regrinded by one section of one section four sections of roughing of corase grinding in step (1) and step (3)；
(5) by the primary cleaning of 2 return step of chats (3) obtained in step (3), and successively by step (3)
Four sections regrind six sections of selected acquisition graphite concentrate products；
(6) by once the regrinding of 3 return step of chats (3) obtained in step (3), and successively by step (3)
Four sections regrind five sections of selected acquisition graphite concentrate products；
(7) the secondary of 4 return step of chats (3) obtained in step (3) is regrinded, and successively by step (3)
Three sections regrind four sections of selected acquisition graphite concentrate products；
(8) by the regrinding three times of 5 return step of chats (3) obtained in step (3), and successively by step (3)
Two sections regrind three sections of selected acquisition graphite concentrate products；
(9) in regrinding for four times of 6 return step of chats (3) obtained in step (3), and successively by step (3)
One section regrind two sections of selected acquisition 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 |
| Tailing | 83.29 | 2.79 | 12.76 |
| It is total | 100.00 | 18.21 | 100.00 |
Above embodiments are only used to illustrate method detailed of the invention, and the invention is not limited to above-mentioned method detaileds, i.e.,
Do not mean that the invention must rely on the above detailed methods to implement.It should be clear to those skilled in the art, right
Any improvement of the invention, the addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, the selection of concrete mode
Deng all of which fall within the scope of protection and disclosure of the present invention.
Claims (25)
1. a kind of purification by mineral method of high clay Fine particle processing, which comprises the steps of:
1) it will carry out smashing slurry after high clay Fine particle processing crushing raw ore to -2cm, the slurry smash after starching is classified, is 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 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；It 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) rough concentrate A and step 3) that step 2) obtains the recleaning concentrate B obtained are merged and secondary regrind, is smart three times
Choosing obtains triple cleaning concentrate and chats 3；Triple cleaning concentrate is once cleaned, four selected, four selected essences of acquisition
Mine and chats 4；Four selected concentrate are subjected to secondary scouring, five selected, five selected concentrate of acquisition and chats 5；By five times
Selected concentrate is cleaned three times, six selected, acquisition graphite concentrate product and chats 6；
5) chats 0, chats 1, chats 2 merging that step 3) obtains are regrinded, once purging selection three times, obtains chats 7 and tail
Mine 2；By 7 return step 3 of chats) primary cleaning in, and successively regrind three sections of wipings by two sections in step 3) and step 4)
Wash six sections of selected acquisition graphite concentrate products；
6) 3 return step 3 of chats for obtaining step 4)) recleaning in, and successively by step 3) and step 4)
One section is regrinded three sections of scourings, five sections of selected acquisition graphite concentrate products；
7) 4 return step 4 of chats for obtaining step 4)) triple cleaning in, and successively by three sections of scourings in step 4)
Four sections of selected acquisition graphite concentrate products；
8) 5 return step 4 of chats for obtaining step 4)) primary scouring in, and successively cleaned by three sections in step 4)
Three sections of selected acquisition graphite concentrate products；
9) 6 return step 4 of chats for obtaining step 4)) secondary scouring in, and successively by two sections of scourings in step 4)
Two sections of selected acquisition graphite concentrate products.
2. purification by mineral method according to claim 1, which is characterized in that in step 1), it is described smash slurry concentration be 20~
60%, the time for smashing slurry is 5~60min.
3. purification by mineral method according to claim 1, which is characterized in that dispersing agent is added in the slurry process of smashing, described
Dispersant dosage is 0.5~4 ‰, and the dispersing agent is one of calgon, sodium pyrophosphate, polyacrylamide.
4. purification by mineral method according to claim 1, which is characterized in that the partition size of the classification is 10~20 μ
m。
5. purification by mineral method according to claim 1 or 2, which is characterized 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.
6. purification by mineral method according to claim 1, which is characterized in that in step 3), the roughing floating agent
Dosage be 2000~3000g/t, the floatation concentration be 30~40%, the flotation time be 5~15min.
7. purification by mineral method according to claim 1, which is characterized in that in step 3), the primary cleaning flotation
Dosing is 1500~2500g/t, and floatation concentration is 15~25%, and the flotation time is 3~10min.
8. purification by mineral method according to claim 1, which is characterized in that in step 3), it is described once regrind after mill
- 38 μm of contents of mine fineness are 70~75%, and the dosage of the recleaning floating agent is 100~500g/t, floatation concentration
It is 15~25%, the flotation time is 3~10min.
9. purification by mineral method according to claim 1, which is characterized in that in step 4), it is described it is secondary regrind after mill
- 38 μm of contents of mine fineness are 90~95%.
10. purification by mineral method according to claim 1, which is characterized in that in step 4), the triple cleaning flotation
The dosage of medicament is 100~500g/t, and floatation concentration is 10~20%, and the flotation time is 3~10min.
11. purification by mineral method according to claim 1, which is characterized in that in step 4), the scouring once cleaned
Time is 1~5min.
12. purification by mineral method according to claim 1, which is characterized in that in step 4), described four times selected to use flotation
The dosage of medicament is 0~300g/t, and floatation concentration is 10~20%, and the flotation time is 3~10min.
13. purification by mineral method according to claim 1, which is characterized in that in step 4), the scouring of the secondary scouring
Time is 1~5min.
14. purification by mineral method according to claim 1, which is characterized in that in step 4), described five times selected to use flotation
The dosage of medicament is 0~300g/t, and floatation concentration is 5~15%, and the flotation time is 3~10min.
15. purification by mineral method according to claim 1, which is characterized in that in step 4), the scouring cleaned three times
Time is 1~5min.
16. purification by mineral method according to claim 1, which is characterized in that in step 4), described six times selected to use flotation
The dosage of medicament is 0~300g/t, and floatation concentration is 5~15%, and the flotation time is 3~10min.
17. purification by mineral method according to claim 1, which is characterized in that described to regrind rear ore grinding three times in step 5)
- 38 μm of contents of fineness are 80~85%.
18. purification by mineral method according to claim 1, which is characterized in that in step 5), the flotation of the once purging selection
The dosage of medicament is 100~500g/t, and floatation concentration is 30~40%, and the flotation time is 3~10min.
19. purification by mineral method according to claim 1, which is characterized in that in the high clay Fine particle processing raw ore
The content of clay class mineral is 30~50%, and fixed carbon content is 10~30%.
20. purification by mineral method according to claim 1, which is characterized in that the roughing, it is selected, scan during institute
Floating agent is one of quick lime, sodium metasilicate, calgon, sodium pyrophosphate, kerosene, diesel oil, No. 2 oil, No. 4 oil
Or at least two mixture.
21. purification by mineral method according to claim 1, which is characterized in that in step 1), the shattering process uses jaw
Formula crusher or double-roll crusher are crushed.
22. purification by mineral method according to claim 1, which is characterized in that in step 1), the classification process is used
Hydrocyclone is classified.
23. purification by mineral method according to claim 1, which is characterized in that the roughing, it is selected, scan process and adopt
Flotation is carried out with RK/FD type single-trough flotating machine.
24. purification by mineral method according to claim 1, which is characterized in that the process of regrinding is using conical ball mill
It is regrinded.
25. purification by mineral method according to claim 1, which is characterized in that the concentrate product its fix carbon content >=
95%, the rate of recovery >=90%.
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| 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 |
| CN109433434B (en) * | 2018-11-13 | 2021-01-08 | 长沙万荣粉体设备科技有限公司 | Graphite sorting 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 |
| 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 |
| CN114887775B (en) * | 2022-03-29 | 2023-03-21 | 中南大学 | Method for efficiently separating and recycling graphite from vanadium leaching slag |
| CN114932009B (en) * | 2022-04-26 | 2024-08-13 | 武汉理工大学 | Comprehensive utilization method of low-grade large-scale graphite ore |
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| CN106964479A (en) * | 2017-04-10 | 2017-07-21 | 中国铝业股份有限公司 | A kind of bauxite stage flotation desilication method |
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