CN107309049A - A kind of graphite lithium cell cathode material reducing mechanism - Google Patents
A kind of graphite lithium cell cathode material reducing mechanism Download PDFInfo
- Publication number
- CN107309049A CN107309049A CN201710680951.1A CN201710680951A CN107309049A CN 107309049 A CN107309049 A CN 107309049A CN 201710680951 A CN201710680951 A CN 201710680951A CN 107309049 A CN107309049 A CN 107309049A
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- CN
- China
- Prior art keywords
- fixedly connected
- motor
- reducing mechanism
- lithium cell
- cathode material
- 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
- B02C19/00—Other disintegrating devices or methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/526—Cleaning with brushes or scrapers with scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of graphite lithium cell cathode material reducing mechanism, including body, middle-end at the top of the chamber body is fixedly connected with sensor of dust concentration, lower end on the right side of the chamber body is fixedly connected with the second motor support base, the top of second motor support base is fixedly connected with the second motor, the upper end of the chamber body is connected with pulverization cylinder, the inner surface of the pulverization cylinder is movably installed with pulverised prod, the pulverised prod is fixedly connected with the output shaft of the second motor, the lower end of chamber body is fixedly connected with filter, the middle-end of filter bottom is fixedly connected with the first weight sensor.The effect that the present invention passes through electric expansion bar, scraper plate and the first weight sensor and the second weight sensor and induced-draught fan, graphite particle larger on filter can not only be cleared up automatically by solving prior art, simultaneously can not the larger graphite particle that is filtered out of automatic crushing, it is impossible to the problem of meeting people's demand.
Description
Technical field
The present invention relates to a kind of graphite reducing mechanism technical field, specially a kind of graphite lithium cell cathode material is crushed
Device.
Background technology
Graphite is a kind six side or three prismatic crystals of the crystal structure between atomic crystal, metallic crystal and molecular crystal
The native element metal mineral of the transiens crystal of system, graphite is one of which most soft mineral, and its purposes includes manufacture pencil-lead
And lubricant, its chemical property torpescence and corrosion-resistant, reaction is difficult with acid, alkali etc., strengthens heat in air or oxygen, it is flammable
Burn and generate carbon dioxide, graphite is also widely used in lithium battery, and is used as negative material, graphite lithium ion battery anode material
Material needs reducing mechanism to be acted upon, but current graphite lithium cell cathode material is bad with reducing mechanism crushing effect, crushes
Time is long, it is difficult to by machining graphite into the particle diameter of needs, such as Chinese patent " graphite lithium cell cathode material reducing mechanism ", specially
Profit number is 201620408440.5, and the spiral crushing shaft that graphite is first passed through in charging aperture is crushed by pulverization cylinder again after crushing, energy
By graphite crush it is relatively thin, the larger graphite particle of only a few can be taken out of by scraper plate enters Material collecting box for harvesting, is crushed again, crushing
More preferably, multiple spiral crushing shafts and multiple pulverization cylinders work simultaneously to be improved the efficiency of graphite crushing and ensure that the effect of graphite
The quality that graphite is crushed, but its automaticity is low, and graphite particle larger on filter can not be not only cleared up automatically, while
The larger graphite particle that automatic crushing is filtered out is unable to, it is impossible to meet the demand of people, therefore, a kind of it is proposed that graphite lithium
Cell negative electrode material reducing mechanism.
The content of the invention
It is an object of the invention to provide a kind of graphite lithium cell cathode material reducing mechanism, by setting scraper plate to coordinate
The effect of first weight sensor, the second weight sensor and induced-draught fan, realizes and carries out automatic cycle to larger graphite particle
Crush and clear up, possess the high advantage of automaticity, solving prior art can not only clear up larger on filter automatically
Graphite particle, while can not the larger graphite particle that is filtered out of automatic crushing, it is impossible to the problem of meeting people's demand.
To achieve the above object, the present invention provides following technical scheme：A kind of graphite lithium cell cathode material is filled with crushing
Put, including body, the middle-end at the top of the chamber body is fixedly connected with the right side of sensor of dust concentration, the chamber body
Lower end is fixedly connected with the second motor support base, and the top of second motor support base is fixedly connected with the second motor, the body
The upper end of inner chamber is connected with pulverization cylinder, and the inner surface of the pulverization cylinder is movably installed with pulverised prod, the pulverised prod and
The output shaft of two motors is fixedly connected, and the lower end of the chamber body is fixedly connected with filter, the filter bottom
End is fixedly connected with the first weight sensor, and the middle-end of the body bottom portion is offered on the left of discharging opening, the body outer surface
Lower end be fixedly connected with electric expansion bar, the right side of the electric expansion bar is fixedly connected with scraper plate by connecting rod, described
The left and right ends of bodies top have been fixedly connected with the first motor support base, and the top of first motor support base is fixedly connected with
One motor, the top of the body and the inner surface positioned at the first motor offer charging aperture, the inner chamber activity of the charging aperture
Screw shaft is connected with, the screw shaft is connected with the output shaft of the first motor by belt transmission, the body outer surface
The lower end on right side is connected with Material collecting box for harvesting by pipe movable, and the bottom of the box cavity that gathers materials from left to right is fixedly connected sequentially and had
Second weight sensor and induced-draught fan, the air outlet of the induced-draught fan are communicated with pipeline, and pipeline penetrates body and is fixed on this
Upper end on the right side of intracoelomic cavity, the front surface of the body is fixedly connected sequentially has display, alarm and controller from top to bottom,
The front surface of the controller, which is from left to right fixedly connected sequentially, the first motor switch and the second motor switch.
It is preferred that, the quantity of second motor and pulverization cylinder is three, and three pulverization cylinders internal diameter from inside to outside
Gradually increase.
It is preferred that, the inner surface of the discharging opening is connected with valve.
It is preferred that, the flush with outer surface of the outer surface of the display and alarm with body.
It is preferred that, the junction of first motor and the first motor support base and the second motor and the second motor support base
Junction has been fixedly connected with beam.
It is preferred that, the right-hand member of the body front surface is provided with observation window.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, the present invention has been fixedly connected with scraper plate on the right side of electric expansion bar by connecting rod, and is sensed by the first weight
The effect of device, when the weight that can work as the larger graphite particle accumulated on filter is more than highest preset value, turn on automatically is electronic to stretch
The power supply of contracting bar, realizes and larger graphite particle is cleared up automatically, at the same the bottom for the box cavity that gathers materials from left to right according to
Secondary to be fixedly connected with the second weight sensor and induced-draught fan, the weight that can work as the larger graphite particle accumulation in Material collecting box for harvesting is more than most
During high preset value, the power supply of turn on automatically induced-draught fan realizes the effect that automatic cycle crushing is carried out to larger graphite particle.
2nd, middle-end of the present invention at the top of chamber body has been fixedly connected with sensor of dust concentration, and passes through display and report
The effect of alert device, is convenient for people to the understanding to dust concentration content, and when intrinsic dust concentration is more than highest preset value,
The power supply of turn on automatically alarm, makes it send alarm, has ensured the security that the present apparatus is used.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is body main structure diagram of the present invention；
Fig. 3 is controller architecture schematic diagram of the present invention；
Fig. 4 is operation principle schematic diagram of the present invention.
In figure：1 body, 2 pulverization cylinders, 3 pulverised prods, 4 electric expansion bars, 5 scraper plates, 6 filters, 7 first weight sensors,
8 discharging openings, 9 second motors, 10 second motor support bases, 11 Material collecting box for harvesting, 12 second weight sensors, 13 induced-draught fans, 14 first electricity
Machine bearing, 15 first motors, 16 screw shafts, 17 sensor of dust concentration, 18 charging apertures, 19 displays, 20 alarms, 21 controls
Device processed, 211 first motor switch, 212 second motor switch.
Embodiment
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the equipment or element of meaning must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-4, a kind of graphite lithium cell cathode material reducing mechanism, including body 1 are referred to, the front surface of body 1
Right-hand member is provided with observation window, is convenient for people to the viewing to the internal environment of body 1, the middle-end of the inner cavity top of body 1 is fixedly connected with powder
Dust concentration sensor 17, and by the effect of display 19 and alarm 20, the understanding to dust concentration content is convenient for people to, and
When the dust concentration in body 1 is more than highest preset value, the power supply of turn on automatically alarm 20 makes it send alarm, protects
The security that the present apparatus is used is hindered.
In addition, the lower end on the right side of the inner chamber of body 1 is fixedly connected with the second motor support base 10, the top of the second motor support base 10
The second motor 9 is fixedly connected with, the upper end of the inner chamber of body 1 is connected with the quantity of pulverization cylinder 2, the second motor 9 and pulverization cylinder 2
It is three, and the internal diameter of three pulverization cylinders 2 gradually increases from inside to outside, the inner surface of pulverization cylinder 2 is movably installed with pulverised prod
4, pulverised prod 4 is fixedly connected with the output shaft of the second motor 9, and the lower end of the inner chamber of body 1 is fixedly connected with filter 6, filter 6
The middle-end of bottom is fixedly connected with the first weight sensor 7, and the middle-end of the bottom of body 1 offers discharging opening 8, discharging opening 8 it is interior
The lower end that surface activity is connected with the left of valve, the outer surface of body 1 is fixedly connected with electric expansion bar 4, the right side of electric expansion bar 4
Side is fixedly connected with scraper plate 5 by connecting rod, and by the effect of the first weight sensor 7, can work as accumulated on filter 6 compared with
When the weight of big graphite particle is more than highest preset value, the power supply of turn on automatically electric expansion bar 4 is realized to larger graphite
Grain is cleared up automatically.
Secondly, the left and right ends at the top of body 1 have been fixedly connected with the first motor support base 14, the top of the first motor support base 14
End is fixedly connected with the first motor 15, the junction and the second motor 9 and second of the first motor 15 and the first motor support base 14
The junction of motor support base 10 has been fixedly connected with the intensity of noise in beam, the reduction present apparatus course of work, extends this
The service life of device, while decrease injury of the noise to people's sense of hearing, the top of body 1 and positioned at the first motor 15
Inner surface offers charging aperture 18, and the inner chamber of charging aperture 18 is connected with screw shaft 16, the motor of screw shaft 16 and first
15 output shaft is connected by belt transmission, and the lower end on the right side of the outer surface of body 1 is connected with Material collecting box for harvesting 11 by pipe movable, collection
The bottom of the inner chamber of hopper 11, which is from left to right fixedly connected sequentially, the second weight sensor 12 and induced-draught fan 13, can work as Material collecting box for harvesting 11
When the weight of interior larger graphite particle accumulation is more than highest preset value, the power supply of turn on automatically induced-draught fan 13, realize to compared with
Big graphite particle carries out automatic cycle crushing, and graphite larger on filter 6 can not only be cleared up automatically by solving prior art
Particle, while can not the larger graphite particle that is filtered out of automatic crushing, it is impossible to the problem of meeting people's demand, induced-draught fan 13
Air outlet be communicated with pipeline, and the upper end that pipeline penetrates body 1 and is fixed on the right side of the inner chamber of body 1, the front surface of body 1 by
Top to bottm, which is fixedly connected sequentially, display 19, alarm 20 and controller 21, and the outer surface of display 19 and alarm 20 is equal
With the flush with outer surface of body 1, the front surface of controller 21, which is from left to right fixedly connected sequentially, the first motor switch 211 and
Two motor switch 212.
In use, being fixedly connected with scraper plate 5 by connecting rod on the right side of electric expansion bar 4, and passed by the first weight
The effect of sensor 7, when the weight that can work as the larger graphite particle accumulated on filter 6 is more than highest preset value, turn on automatically electricity
The power supply of dynamic expansion link 4, realizes and larger graphite particle is cleared up automatically, at the same the inner chamber of Material collecting box for harvesting 11 bottom from a left side
It has been fixedly connected sequentially the second weight sensor 12 and induced-draught fan 13 to the right side, the larger graphite particle accumulation in Material collecting box for harvesting 11 can be worked as
Weight be more than highest preset value when, the power supply of turn on automatically induced-draught fan 13 realizes and larger graphite particle is followed automatically
Ring is crushed, and graphite particle larger on filter 6 can not only be cleared up automatically by solving prior art, while can not powder automatically
The broken larger graphite particle being filtered out, it is impossible to the problem of meeting people's demand, is fixedly connected in the middle-end of the inner cavity top of body 1
Sensor of dust concentration 17, and by the effect of display 19 and alarm 20, be convenient for people to dust concentration content
Solution, and when the dust concentration in body 1 is more than highest preset value, the power supply of turn on automatically alarm 20 makes it send alarm
Sound, has ensured the security that the present apparatus is used.
In summary：The graphite lithium cell cathode material reducing mechanism, passes through electric expansion bar 4, the weight of scraper plate 5 and first
The effect of the weight sensor 12 of quantity sensor 7 and second and induced-draught fan 13, solving prior art can not only clear up automatically
Larger graphite particle on filter 6, while can not the larger graphite particle that is filtered out of automatic crushing, it is impossible to meet people
The problem of demand.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of graphite lithium cell cathode material reducing mechanism, including body (1), it is characterised in that：Body (1) inner chamber
The lower end that the middle-end at top is fixedly connected with the right side of sensor of dust concentration (17), body (1) inner chamber is fixedly connected with
Two motor support bases (10), the top of second motor support base (10) is fixedly connected with the second motor (9), the body (1)
The upper end of chamber is connected with pulverization cylinder (2), and the inner surface of the pulverization cylinder (2) is movably installed with pulverised prod (3), described to crush
Thorn (3) is fixedly connected with the output shaft of the second motor (9), and the lower end of body (1) inner chamber is fixedly connected with filter (6),
The middle-end of filter (6) bottom is fixedly connected with the first weight sensor (7), and the middle-end of body (1) bottom is opened up
There is the lower end on the left of discharging opening (8), body (1) outer surface to be fixedly connected with electric expansion bar (4), the electric expansion bar
(4) left and right ends that right side is fixedly connected with the top of scraper plate (5), the body (1) by connecting rod have been fixedly connected with
One motor support base (14), the top of first motor support base (14) is fixedly connected with the first motor (15), the body (1)
Top and charging aperture (18) is offered positioned at the inner surface of the first motor (15), the inner chamber of the charging aperture (18) is connected with
Screw shaft (16), the screw shaft (16) is connected with the output shaft of the first motor (15) by belt transmission, the body
(1) lower end on the right side of outer surface is connected with Material collecting box for harvesting (11) by pipe movable, and the bottom of Material collecting box for harvesting (11) inner chamber is from a left side
Being fixedly connected sequentially to the right side has the second weight sensor (12) and induced-draught fan (13), and the air outlet of the induced-draught fan (13) is communicated with
Pipeline, and the upper end that pipeline penetrates body (1) and is fixed on the right side of body (1) inner chamber, the front surface of the body (1) are arrived from above
Under be fixedly connected sequentially and have display (19), alarm (20) and controller (21), the front surface of the controller (21) is from a left side
Being fixedly connected sequentially to the right side has the first motor switch (211) and the second motor switch (212).
2. a kind of graphite lithium cell cathode material reducing mechanism according to claim 1, it is characterised in that：Described second
The quantity of motor (9) and pulverization cylinder (2) is three, and the internal diameter of three pulverization cylinders (2) gradually increases from inside to outside.
3. a kind of graphite lithium cell cathode material reducing mechanism according to claim 1, it is characterised in that：The discharging
The inner surface of mouth (8) is connected with valve.
4. a kind of graphite lithium cell cathode material reducing mechanism according to claim 1, it is characterised in that：The display
Flush with outer surface of the outer surface of device (19) and alarm (20) with body (1).
5. a kind of graphite lithium cell cathode material reducing mechanism according to claim 1, it is characterised in that：Described first
The junction of the junction and the second motor (9) and the second motor support base (10) of motor (15) and the first motor support base (14) is equal
It is fixedly connected with beam.
6. a kind of graphite lithium cell cathode material reducing mechanism according to claim 1, it is characterised in that：The body
(1) right-hand member of front surface is provided with observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680951.1A CN107309049A (en) | 2017-08-10 | 2017-08-10 | A kind of graphite lithium cell cathode material reducing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680951.1A CN107309049A (en) | 2017-08-10 | 2017-08-10 | A kind of graphite lithium cell cathode material reducing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107309049A true CN107309049A (en) | 2017-11-03 |
Family
ID=60171361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710680951.1A Withdrawn CN107309049A (en) | 2017-08-10 | 2017-08-10 | A kind of graphite lithium cell cathode material reducing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107309049A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930830A (en) * | 2017-12-16 | 2018-04-20 | 江西正拓新能源科技股份有限公司 | A kind of artificial plumbago negative pole material production system |
| CN109225496A (en) * | 2018-09-04 | 2019-01-18 | 王华珍 | A kind of new energy battery production graphite powder multistage milling apparatus and grinding method |
| CN109731626A (en) * | 2019-03-11 | 2019-05-10 | 北京林业大学 | Gangue pounds sieve integrated apparatus and gangue processing system |
| CN109932286A (en) * | 2017-12-15 | 2019-06-25 | 东莞市凯金新能源科技股份有限公司 | A method of test graphite size distribution |
| CN110333171A (en) * | 2019-08-12 | 2019-10-15 | 山东科技大学 | Coal handling system transfer point dust concentration detecting method and system |
| CN111261869A (en) * | 2020-02-16 | 2020-06-09 | 陈东亮 | Graphene battery positive and negative electrode composite material and processing device and processing method thereof |
| CN111764487A (en) * | 2020-07-13 | 2020-10-13 | 吴开文 | Municipal drainage pipeline |
| CN111804419A (en) * | 2020-06-16 | 2020-10-23 | 马鞍山采石矶涂料有限公司 | Grinding device capable of automatically returning materials |
| CN115096049A (en) * | 2022-07-05 | 2022-09-23 | 株洲弘通硬质合金有限公司 | Constant-temperature vacuum vertical stirring dryer for hard alloy production |
-
2017
- 2017-08-10 CN CN201710680951.1A patent/CN107309049A/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932286B (en) * | 2017-12-15 | 2022-11-25 | 广东凯金新能源科技股份有限公司 | Method for testing graphite particle size distribution |
| CN109932286A (en) * | 2017-12-15 | 2019-06-25 | 东莞市凯金新能源科技股份有限公司 | A method of test graphite size distribution |
| CN107930830A (en) * | 2017-12-16 | 2018-04-20 | 江西正拓新能源科技股份有限公司 | A kind of artificial plumbago negative pole material production system |
| CN107930830B (en) * | 2017-12-16 | 2023-05-02 | 江西正拓新能源科技股份有限公司 | Artificial graphite negative electrode material production system |
| CN109225496A (en) * | 2018-09-04 | 2019-01-18 | 王华珍 | A kind of new energy battery production graphite powder multistage milling apparatus and grinding method |
| CN109225496B (en) * | 2018-09-04 | 2020-12-01 | 泰州鸿行信息科技有限公司 | Multistage grinding equipment and method for graphite powder for new energy battery production |
| CN109731626A (en) * | 2019-03-11 | 2019-05-10 | 北京林业大学 | Gangue pounds sieve integrated apparatus and gangue processing system |
| CN110333171A (en) * | 2019-08-12 | 2019-10-15 | 山东科技大学 | Coal handling system transfer point dust concentration detecting method and system |
| CN111261869A (en) * | 2020-02-16 | 2020-06-09 | 陈东亮 | Graphene battery positive and negative electrode composite material and processing device and processing method thereof |
| CN111804419A (en) * | 2020-06-16 | 2020-10-23 | 马鞍山采石矶涂料有限公司 | Grinding device capable of automatically returning materials |
| CN111764487A (en) * | 2020-07-13 | 2020-10-13 | 吴开文 | Municipal drainage pipeline |
| CN115096049A (en) * | 2022-07-05 | 2022-09-23 | 株洲弘通硬质合金有限公司 | Constant-temperature vacuum vertical stirring dryer for hard alloy production |
| CN115096049B (en) * | 2022-07-05 | 2023-08-22 | 株洲弘通硬质合金有限公司 | Constant-temperature vacuum vertical stirring dryer for hard alloy production |
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Application publication date: 20171103 |
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