CN109174282A - Flaky graphite protects device and method thereof in a kind of graphite ore dressing - Google Patents
Flaky graphite protects device and method thereof in a kind of graphite ore dressing Download PDFInfo
- Publication number
- CN109174282A CN109174282A CN201810935362.8A CN201810935362A CN109174282A CN 109174282 A CN109174282 A CN 109174282A CN 201810935362 A CN201810935362 A CN 201810935362A CN 109174282 A CN109174282 A CN 109174282A
- Authority
- CN
- China
- Prior art keywords
- graphite
- abrasive rubber
- rubber roller
- ore dressing
- speed regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The present invention relates to flaky graphites in a kind of graphite ore dressing to protect device and method thereof, solves the problems, such as that flaky graphite is protected in graphite ore dressing.The invention includes including bracket, groove body, abrasive rubber roller, discharge port, hopper, bearing shell, speed regulating motor I, speed regulating motor II, motor supporting plate, bracket lacing wire, holding device, motor wheel, belt, hopper base, abrasive rubber roll shaft, belt pulley.Two, abrasive rubber roller are one group, and centre passes through abrasive rubber roll shaft, and horizontal positioned side by side, gap 0-0.1mm can be set to multiple groups, and upper and lower same direction is placed.The inventive structure is simple, low in cost, and it is convenient to operate, and with conventional grinding system ratio, energy-saving, scale protecting effect is good, improves each grade grade significant effect, is popularized using technology, is suitable for graphite dressing plant and uses.
Description
Technical field
The invention belongs to graphite technical field of beneficiation, in specially a kind of graphite ore dressing flaky graphite protection equipment and its
Method.
Background technique
Graphite ore can be divided into Scaly graphite mine, aphanitic graphite mine, and Scaly graphite mine can divide flaky graphite mine and small again
Crystalline flake graphite mine, graphite flakes are bigger, and application range is wider, and value is higher, therefore graphite dressing plant is raising crystalline flake graphite grain
Diameter and yield are as top priority and target.
Graphite ore ore-dressing technique is mainly by making valuable mineral graphite and accompanying impurities gangue solution to the continuous broken of ore
From, and useful mineral stone ink is constantly enriched with by flotation.
Most ore-dressing techniques used are that multistage is crushed the flotation of multistage grinding multistage in actual production.In general, it is crushed
Technique majority carries out coarse crushing using jaw crusher or impact crusher, using in jaw crusher or gyratory crusher progress
It is broken, fine crushing；The ore grinding stage generallys use wet type grate ball mill or overflowball mill is roughly ground, and use is rectangular, round
Vertical Mill or ball mill are regrinded；The commonly used floatation equipment of flotation stage includes that SF--JJF type flotation machine, XCF--KYF type are floating
Select machine and A type flotation machine etc..In production practices generally by roughing, scan, a regrinding and reconcentration, secondary regrinding and reconcentration, three times
Regrinding and reconcentration etc., it is most to reach ten and once regrind ten recleanings, after these regrinding and reconcentration processes, graphite flakes are broken
It is bad very big, the partial size and yield of flaky graphite are seriously affected, greatly constrains graphite in the application of key areas.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art and defect, flaky graphite in a kind of graphite ore dressing is provided
Protect device and method thereof.
The present invention solves technical problem as above by following technical solution.
Flaky graphite protects equipment, including bracket, groove body, abrasive rubber roller, discharging in a kind of graphite ore dressing
Mouth, hopper, bearing shell, speed regulating motor I, speed regulating motor II, motor supporting plate, bracket lacing wire, holding device, belt pulley, belt, hopper
Bracket, abrasive rubber roll shaft.
Two, abrasive rubber roller are one group, and centre passes through abrasive rubber roll shaft, horizontal positioned side by side, gap 0-0.1mm,
It is fixed on pedestal upper end.Pedestal lower end is equipped with four bracket lacing wires, keeps bracket more stable.One end peace of a piece abrasive rubber roller
Thong wheel, and belt pulley is connect by belt with speed regulating motor.The other end of another abrasive rubber roller installs belt pulley, belt
Wheel is connect by belt with another speed regulating motor.
Abrasive rubber roller both ends are equipped with holding device, and abrasive rubber roll shaft both ends are equipped with bearing shell.
Speed regulating motor I, speed regulating motor II are fixed on motor supporting plate, and motor supporting plate is fixed below bracket.
Hopper is fixed on pedestal upper end by hopper base, and lower end is equipped with discharge port.Preferred embodiment hopper can also be selected
Oscillating feeder.
Abrasive rubber roller and hopper are enclosed in groove body, and material is avoided to reveal.
The opposite rotation under speed regulating motor drive of abrasive rubber roller, revolving speed is different, and one 100-500 revs/min of revolving speed, one
A revolving speed is 5-200 revs/min.
The application method of flaky graphite protection equipment is in the graphite ore dressing: first by the primary of normal graphite dressing plant
Flotation concentrate ore pulp is added in hopper, and ore pulp is entered in two abrasive rubber roller gaps by hopper, due to two abrasive rubbers
Roller revolving speed is different, while gap is narrow, and after rubbing, squeezing, graphite ore pulp is flowed out from discharge port.
In order to reach better flaky graphite yield and graphite grade, multiple groups, black lead wash is can be set in abrasive rubber roller
Material baffle is arranged between two groups of abrasive rubber rollers sequentially through in the multiple groups abrasive rubber roller such as first group, second group in material.Place
Graphite slurry after reason is flowed out from discharge port, and the group number of setting can directly make graphite reach expected quality requirement, can also be with
It will treated that material enters secondary flotation machine flotation, the concentrate after secondary flotation machine flotation, if quality reaches by this equipment
It can directly dry to target, if target is not achieved in quality, can be regrinded with this equipment once or for several times, it is secondary floating
Select tail mine that can also use this equipment regrinding and reconcentration.
The inventive structure is simple, low in cost, and it is convenient to operate, with conventional grinding system ratio, energy-saving, scale protection
Effect is good, improves each grade grade significant effect, and increased quality is obvious, using technology convenient for universal, suitable for graphite dressing plant
It uses, has a extensive future.
Detailed description of the invention
Attached drawing 1 is the main view of present device；Attached drawing 2 is the left view of present device；Attached drawing 3 is that the present invention is wear-resisting
Rubber rollers top view；Attached drawing 4 is that abrasive rubber roller of the present invention rotates schematic diagram；Fig. 5 is that schematic diagram is arranged in two groups of abrasive rubber rollers.
Diagram: 1 bracket, 2 groove bodies, 3 abrasive rubber rollers, 4 discharge ports, 5 hoppers, 6 bearing shells, 7 speed regulating motors I, 8 speed regulating motors
II, 9 motor supporting plates, 10 bracket lacing wires, 11 holding devices, 12 belt pulleys, 13 belts, 14 hopper bases, 15 abrasive rubber roll shafts,
16 material baffles.
Specific embodiment
Embodiment 1:
As shown in Figs. 1-5, big scale protects equipment, including bracket 1, groove body 2, wear-resisting rubber in a kind of graphite ore dressing
Rubber roller 3, hopper 5, bearing shell 6, speed regulating motor I 7, speed regulating motor II 8, motor supporting plate 9, bracket lacing wire 10, holds out against dress at discharge port 4
Set 11, belt pulley 12, belt 13, hopper base 14, abrasive rubber roll shaft 15.
Abrasive rubber roller 3 is two, i.e., two are one group, and centre passes through abrasive rubber roll shaft 15, horizontal positioned side by side,
Gap is 0.1mm, is fixed on 1 upper end of bracket.1 lower end of bracket is equipped with four bracket lacing wires 10, keeps bracket 1 more stable.One resistance to
Belt pulley 12 is installed in one end of rubber milling roller 3, and belt pulley 12 is connect by belt 13 with speed regulating motor I 7.Another abrasive rubber
The other end of roller 3 installs belt pulley 12, and belt pulley 12 is connect by belt 13 with speed regulating motor II 8.
3 both ends of abrasive rubber roller are equipped with holding device 11, and 15 both ends of abrasive rubber roller bearing are equipped with bearing shell 6.
Speed regulating motor I 7, speed regulating motor II 8 are fixed on motor supporting plate 9, and motor supporting plate 9 is fixed on 1 lower section of bracket.
Hopper 5 is fixed on 1 upper end of bracket by hopper base 14, and lower end is equipped with discharge port 4.
Abrasive rubber roller 3 and hopper 5 are enclosed in groove body 2, and material is avoided to reveal.
The opposite rotation under speed regulating motor drive of abrasive rubber roller 3, revolving speed is different, and one 200 revs/min of revolving speed, one
Revolving speed is 500 revs/min.
The application method of big scale protection equipment is in the graphite ore dressing: first by a flotation in normal graphite dressing plant
Concentrate is added in hopper 5, into two abrasive rubber roll gap gaps, since two 3 revolving speeds of abrasive rubber roller are different, while gap
Narrow, after rubbing, squeezing, graphite powder is flowed out from discharge port 4.
Embodiment 2:
As shown in Figs. 1-5, big scale protects equipment, including bracket 1, groove body 2, wear-resisting rubber in a kind of graphite ore dressing
Rubber roller 3, hopper 5, bearing shell 6, speed regulating motor I 7, speed regulating motor II 8, motor supporting plate 9, bracket lacing wire 10, holds out against dress at discharge port 4
Set 11, belt pulley 12, belt 13, hopper base 14, abrasive rubber roll shaft 15.
Abrasive rubber roller 3 is two, and centre passes through abrasive rubber roll shaft 15, and horizontal positioned side by side, gap 0mm is fixed
In 1 upper end of bracket.1 lower end of bracket is equipped with four bracket lacing wires 10, keeps bracket 1 more stable.One end of a piece abrasive rubber roller 3
Belt pulley 12 is installed, belt pulley 12 is connect by belt 13 with speed regulating motor I 7.The other end installation of another abrasive rubber roller 3
Belt pulley 12, belt pulley 12 are connect by belt 13 with speed regulating motor II 8.
3 both ends of abrasive rubber roller are equipped with holding device 11, and 15 both ends of abrasive rubber roller bearing are equipped with bearing shell 6.
Speed regulating motor I 7, speed regulating motor II 8 are fixed on motor supporting plate 9, and motor supporting plate 9 is fixed on 1 lower section of bracket.
Hopper 5 is fixed on 1 upper end of bracket by hopper base 14.
Abrasive rubber roller 3 and hopper 5 are enclosed in groove body 2, and material is avoided to reveal.
The opposite rotation under speed regulating motor drive of abrasive rubber roller 3, revolving speed is different, and one 100 revs/min of revolving speed, one
Revolving speed is 5 revs/min.
The application method of big scale protection equipment is in the graphite ore dressing: first by a flotation in normal graphite dressing plant
Concentrate is added in hopper 5, into two abrasive rubber roll gap gaps, since two 3 revolving speeds of abrasive rubber roller are different, while gap
Narrow, after rubbing, squeezing, graphite powder is flowed out from discharge port 4.
The application method of big scale protection equipment is in the graphite ore dressing: first by a flotation in normal graphite dressing plant
Concentrate is added in hopper 5, enters in two abrasive rubber roll gap gaps from discharge port 4, not due to two 3 revolving speeds of abrasive rubber roller
Together, while gap is narrow, and after rubbing, squeezing, graphite powder is flowed out from discharge port 4.
Using this equipment, one group of abrasive rubber roller is set, experimental raw is primary cleaning graphite ore, and experimental data is as follows:
Graphite to be carried out first time processing using this equipment with " primary " representative, represents benefit with " secondary " convenient for statement
Graphite is carried out second with this equipment to handle, is represented with " three times " and graphite is subjected to third time processing using this equipment, with " four
It is secondary " represent using this equipment by graphite carry out the 4th time handle.
By as above testing it can be seen that
In terms of positive 50 mesh crystalline flake graphite, yield 11% before testing, it is primary after yield 9%, it is secondary after yield 8%, three times after
Yield 10%, yield 11% after four times.It can thus be seen that for the crystalline flake graphite of positive 50 mesh, yield variation less, illustrates pair
It is preferable in the protecting effect of scale.
In terms of 50-80 mesh crystalline flake graphite, yield 22% before testing, primary rear yield 17%, secondary rear yield 15%, three times
The graphite grade of yield 16% afterwards, the mesh number increases to 71.13% by 49.02% before testing, and increases to after secondary
82.27%.It is carried out after handling three times using this equipment, the graphite yield of this mesh number is slightly decreased, but the grade of graphite increases
Obviously, be conducive to graphite purification, resultant effect is ideal.
In terms of 80-100 mesh crystalline flake graphite, yield 15% before testing, primary rear yield 16%, secondary rear yield 15%, three
Yield 15% after secondary；The grade of the mesh number graphite increases to 59.77% by 44.18% before testing, and increases to after secondary
68.04%.For the graphite of this mesh number, yield variation is also little, and the grade of graphite increases the protection effect obviously illustrated to scale
Fruit is good, and grade promotion is conducive to graphite purification.
The graphite grade of positive 80 mesh is 53.4% before experiment, reaches 83.49% after the single treatment of this equipment, secondary
Reach 86.79% after processing；
In conclusion the device after handling three times, and it is good to the protecting effect of graphite flakes, scale partial size is protected and is imitated
Fruit is good, to each grade grade significant effect of raising.
Embodiment 3:
As shown in Figs. 1-5, big scale protects equipment, including bracket 1, groove body 2, wear-resisting rubber in a kind of graphite ore dressing
Rubber roller 3, hopper 5, bearing shell 6, speed regulating motor I 7, speed regulating motor II 8, motor supporting plate 9, bracket lacing wire 10, holds out against dress at discharge port 4
Set 11, belt pulley 12, belt 13, hopper base 14, abrasive rubber roll shaft 15.
As shown in figure 5, abrasive rubber roller 3 is four, two are one group, and horizontal positioned side by side, about two groups are disposed vertically,
Abrasive rubber roll shaft 15 is passed through among abrasive rubber roller 3, gap 0mm is fixed on 1 upper end of bracket.In two groups of abrasive rubber rollers
Between be arranged material baffle 16,1 lower end of bracket be equipped with four bracket lacing wires 10, keep bracket 1 more stable.A piece abrasive rubber roller
Belt pulley 12 is installed in 3 one end, and belt pulley 12 is connect by belt 13 with speed regulating motor I 7.Another abrasive rubber roller 3 it is another
Belt pulley 12 is installed in one end, and belt pulley 12 is connect by belt 13 with speed regulating motor II 8.
Abrasive rubber roller is set as three groups.
3 both ends of abrasive rubber roller are equipped with holding device 11, and 15 both ends of abrasive rubber roller bearing are equipped with bearing shell 6.
Speed regulating motor I 7, speed regulating motor II 8 are fixed on motor supporting plate 9, and motor supporting plate 9 is fixed on 1 lower section of bracket.
Hopper 5 selects oscillating feeder, seperated with the equipment, is directly fed from above, abrasive rubber roller is arranged below out
Material mouth 4.
Abrasive rubber roller 3 and hopper 5 are enclosed in groove body 2, and material is avoided to reveal.
The opposite rotation under speed regulating motor drive of abrasive rubber roller 3, revolving speed is different, and one 100 revs/min of revolving speed, one
Revolving speed is 300 revs/min.
The application method of big scale protection equipment is in the graphite ore dressing: first by a flotation in normal graphite dressing plant
Concentrate is added in hopper 5, into two abrasive rubber roller gaps, since two 3 revolving speeds of abrasive rubber roller are different, while gap
Narrow, after rubbing, squeezing, graphite powder is flowed out from discharge port 4.
Claims (8)
1. flaky graphite protects equipment in a kind of graphite ore dressing, it is characterised in that: including bracket, groove body, abrasive rubber roller, go out
Material mouth, hopper, bearing shell, speed regulating motor I, speed regulating motor II, motor supporting plate, bracket lacing wire, holding device, belt pulley, belt, material
Struggle against bracket, abrasive rubber roll shaft.
2. flaky graphite protects equipment in a kind of graphite ore dressing according to claim 1, it is characterised in that: described wear-resisting
Rubber rollers are two, and centre passes through abrasive rubber roll shaft, and horizontal positioned side by side, gap 0-0.1mm is fixed on pedestal upper end；
Pedestal lower end is equipped with four bracket lacing wires, and belt pulley is installed in one end of an abrasive rubber roller, and belt pulley passes through belt and speed regulation
Motor connection；The other end of another abrasive rubber roller installs belt pulley, and belt pulley is connect by belt with another speed regulating motor.
3. flaky graphite protects equipment in a kind of graphite ore dressing according to claim 1, it is characterised in that: abrasive rubber
Roller and hopper are enclosed in groove body, and abrasive rubber roller both ends are equipped with holding device, and abrasive rubber roller bearing both ends are equipped with bearing shell.
4. flaky graphite protects equipment in a kind of graphite ore dressing according to claim 1, it is characterised in that: speed regulating motor
I, speed regulating motor II is fixed on motor supporting plate, and motor supporting plate is fixed below bracket.
5. flaky graphite protects equipment in a kind of graphite ore dressing according to claim 1, it is characterised in that: abrasive rubber
Roller opposite rotation under speed regulating motor drive, revolving speed is different, and one 100-500 revs/min of revolving speed, another revolving speed is 5-200
Rev/min.
6. flaky graphite protects equipment in a kind of graphite ore dressing described in -5 according to claim 1, it is characterised in that: wear-resisting rubber
Rubber roller is set as two or more, and two one group, about two groups are disposed vertically, and material is arranged between two groups of abrasive rubber rollers and keeps off
Plate.
7. flaky graphite guard method in a kind of graphite ore dressing described in -5 according to claim 1, it is characterised in that: will be primary
Flotation concentrate is added in hopper, and into two abrasive rubber roller gaps, different rotating speeds are arranged in two abrasive rubber rollers, stitches simultaneously
Gap is narrow, and after rubbing, squeezing, black lead wash is flowed out from discharge port；If the black lead wash quality of outflow reaches target i.e.
It can directly dry, if target is not achieved in quality, can be regrinded with this equipment once or for several times；It can also will pass through this equipment
Treated, and material enters secondary flotation machine flotation, the concentrate after secondary flotation machine flotation, if quality reaches target i.e.
It can directly dry, if target is not achieved in quality, can be regrinded with this equipment once or for several times, secondary flotation tail mine can also
With this equipment regrinding and reconcentration.
8. flaky graphite guard method in a kind of graphite ore dressing according to claim 6, it is characterised in that: will once float
Concentrate selection is added in hopper, into first group of two abrasive rubber roller gaps, then sequentially enters second group, third group etc.
Two abrasive rubber roller gaps, the group number of setting can directly make graphite reach expected quality requirement, two abrasive rubbers
Different rotating speeds are arranged in roller, while gap is narrow, and after rubbing, squeezing, black lead wash is flowed out from discharge port, and the black lead wash of outflow is
It can directly dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935362.8A CN109174282A (en) | 2018-08-16 | 2018-08-16 | Flaky graphite protects device and method thereof in a kind of graphite ore dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935362.8A CN109174282A (en) | 2018-08-16 | 2018-08-16 | Flaky graphite protects device and method thereof in a kind of graphite ore dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109174282A true CN109174282A (en) | 2019-01-11 |
Family
ID=64918416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810935362.8A Pending CN109174282A (en) | 2018-08-16 | 2018-08-16 | Flaky graphite protects device and method thereof in a kind of graphite ore dressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109174282A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265993Y (en) * | 1996-04-23 | 1997-10-29 | 刘云峰 | Differential speed roll pulp grinder |
| CN1911523A (en) * | 2005-08-09 | 2007-02-14 | 郝志刚 | Technological method capable of enhancing ore dressing efficiency and ore dressing indox |
| CN102773152A (en) * | 2012-07-13 | 2012-11-14 | 四川领航石墨制品有限公司 | Fine flaky-cryptocrystalline mixed graphite separation technique |
| CN203944421U (en) * | 2014-07-14 | 2014-11-19 | 景津环保股份有限公司 | A kind of differential speed type cake breaker |
| CN204352917U (en) * | 2014-12-26 | 2015-05-27 | 济南安地冶金机械设备有限公司 | A kind of novel double-roll crusher |
| CN105665065A (en) * | 2016-02-19 | 2016-06-15 | 山东省农业机械科学研究院 | Fixed-gap tooth-free roller-couple grinder |
| CN107537679A (en) * | 2017-08-22 | 2018-01-05 | 苏州中材非金属矿工业设计研究院有限公司 | A kind of purification by mineral method of low-grade flaky graphite |
| DE202018101265U1 (en) * | 2017-03-07 | 2018-04-05 | Bmh Technology Oy | Arrangement for operating a crusher |
| CN107895657A (en) * | 2017-12-23 | 2018-04-10 | 株洲市智汇知识产权运营服务有限责任公司 | A kind of preparation method of lithium-ion capacitor using spherical microcrystalline graphite material |
-
2018
- 2018-08-16 CN CN201810935362.8A patent/CN109174282A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265993Y (en) * | 1996-04-23 | 1997-10-29 | 刘云峰 | Differential speed roll pulp grinder |
| CN1911523A (en) * | 2005-08-09 | 2007-02-14 | 郝志刚 | Technological method capable of enhancing ore dressing efficiency and ore dressing indox |
| CN102773152A (en) * | 2012-07-13 | 2012-11-14 | 四川领航石墨制品有限公司 | Fine flaky-cryptocrystalline mixed graphite separation technique |
| CN203944421U (en) * | 2014-07-14 | 2014-11-19 | 景津环保股份有限公司 | A kind of differential speed type cake breaker |
| CN204352917U (en) * | 2014-12-26 | 2015-05-27 | 济南安地冶金机械设备有限公司 | A kind of novel double-roll crusher |
| CN105665065A (en) * | 2016-02-19 | 2016-06-15 | 山东省农业机械科学研究院 | Fixed-gap tooth-free roller-couple grinder |
| DE202018101265U1 (en) * | 2017-03-07 | 2018-04-05 | Bmh Technology Oy | Arrangement for operating a crusher |
| CN107537679A (en) * | 2017-08-22 | 2018-01-05 | 苏州中材非金属矿工业设计研究院有限公司 | A kind of purification by mineral method of low-grade flaky graphite |
| CN107895657A (en) * | 2017-12-23 | 2018-04-10 | 株洲市智汇知识产权运营服务有限责任公司 | A kind of preparation method of lithium-ion capacitor using spherical microcrystalline graphite material |
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Application publication date: 20190111 |