CN112194118A - Quick collection device of graphite alkene powder is prepared to electric arc method - Google Patents
Quick collection device of graphite alkene powder is prepared to electric arc method Download PDFInfo
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- CN112194118A CN112194118A CN202010986300.7A CN202010986300A CN112194118A CN 112194118 A CN112194118 A CN 112194118A CN 202010986300 A CN202010986300 A CN 202010986300A CN 112194118 A CN112194118 A CN 112194118A
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- electric arc
- arc furnace
- graphene powder
- collection device
- air inlet
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- 238000010891 electric arc Methods 0.000 title claims abstract description 63
- 239000000843 powder Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 title claims description 5
- 239000010439 graphite Substances 0.000 title claims description 5
- -1 graphite alkene Chemical class 0.000 title claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000007664 blowing Methods 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 7
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a quick collecting device for preparing graphene powder by an electric arc method, which comprises an electric arc furnace, a blowing mechanism, a cyclone separator and a gas-solid separation mechanism, wherein the electric arc furnace is used for preparing the graphene powder, the blowing mechanism is arranged on a top cover arranged at the top of the electric arc furnace and is communicated with the top cover, the blowing mechanism comprises an air inlet pipe and an inert gas source connected with the outside through the air inlet pipe, the air inlet pipe is vertically arranged with the top cover of the electric arc furnace, one end of the air inlet pipe is arranged in the electric arc furnace, the other end of the air inlet pipe is arranged outside the electric arc furnace, a feed inlet of the cyclone separator is connected with a discharge outlet of the electric arc furnace at the bottom of a base of the electric arc furnace through a; the invention realizes the automatic operation of graphene powder collection, solves the problem of dust emission in the graphene powder collection process, and can realize the continuity of graphene powder preparation.
Description
Technical Field
The invention relates to the technical field of powder collecting devices, in particular to a quick collecting device for preparing graphene powder by an electric arc method.
Background
The graphene prepared by the arc method has the advantages of high purity, high yield, high crystallinity and the like, and is widely used for industrial production. The production of graphene by the arc method needs a closed system filled with protective gas, and therefore when the amount of graphene produced by the arc method reaches a certain amount, the closed system is broken to collect graphene powder. At present, in industrial production, graphene powder is mainly prepared in an electric arc furnace, and after the preparation is finished, the furnace body is opened to collect the graphene powder through manual operations such as simple scraping, sweeping and sucking, so that dust can be easily raised. The raised dust can not only cause certain harm to the body of operators, but also cause the loss of a part of graphene powder, and the opening of the furnace body to collect the graphene powder can also influence the production continuity, thereby being not beneficial to the rapid and efficient production and preparation of the graphene powder; in addition, when the graphene powder is prepared by the arc method, some high-density large carbon deposition and other impurities can be generated, and at present, the impurities are mainly removed by adopting a vibrating screen in the industry, but dust can also be caused in the vibrating impurity removal process.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a rapid collecting device for preparing graphene powder by an electric arc method aiming at the defects in the prior art, so that the automatic operation of collecting the graphene powder is realized, the problem of dust emission in the process of collecting the graphene powder is solved, and the continuity of preparing the graphene powder can be realized.
The technical scheme for solving the technical problems is as follows: a quick collecting device for preparing graphene powder by an electric arc method comprises an electric arc furnace, a blowing mechanism, a cyclone separator and a gas-solid separation mechanism, wherein the electric arc furnace is used for preparing the graphene powder, the electric arc furnace is cylindrical, an electric arc furnace top cover is arranged at the top of the electric arc furnace, the bottom of the electric arc furnace top cover is connected with a base, an electric arc furnace discharge hole is formed in the bottom of the base, the blowing mechanism is arranged on the top cover of the electric arc furnace and communicated with the electric arc furnace, the blowing mechanism can rotate along the central axis of the electric arc furnace and lift in the electric arc furnace through manpower, the blowing mechanism comprises an air inlet pipe and an inert gas source connected with the outside through the air inlet pipe, the air inlet pipe is perpendicular to the electric arc furnace top cover, one end of the air inlet pipe is arranged in the electric arc, and meanwhile, an air outlet arranged at the top end of the cyclone separator is connected with the gas-solid separation mechanism through a detachable connecting pipeline.
The technical scheme of the invention is further defined as follows:
the first valve is arranged at the discharge port of the electric arc furnace.
The air inlet pipe is arranged in the arc furnace, one end of the air inlet pipe is a hollow disc, and a plurality of air outlet holes in the horizontal direction are symmetrically arranged on the circumferential surface of the disc.
The center of the electric arc furnace top cover is provided with a groove matched with the disc, and the disc is positioned in the groove.
The base is a cone with a cone angle of 90 degrees, and is beneficial to discharging of graphene powder.
The aforesaid still including the collection tank that is used for collecting impurity, this collection tank passes through the cyclone discharge gate that discharge tube connects cyclone bottom setting.
A second valve is arranged at the discharge port arranged at the bottom of the cyclone separator.
The invention has the beneficial effects that: according to the invention, the top cover of the electric arc furnace is provided with the air blowing mechanism, the discharge port of the electric arc furnace is connected with the gas-solid separation mechanism, when the graphene powder is collected, the air blowing mechanism blows high-pressure inert gas, and the air blowing mechanism can also rotate, so that an annular high-pressure closed airflow net is formed, the annular high-pressure closed airflow net moves towards the bottom in the electric arc furnace along with the air blowing mechanism, the graphene powder can be blown into the gas-solid separation mechanism, the automatic operation of graphene powder collection is realized, the traditional manual furnace opening operation is abandoned, the dust raising problem is effectively solved, and the continuity of graphene powder preparation can be realized;
meanwhile, a cyclone separator is connected between the gas-solid separation mechanism and the electric arc furnace, impurities such as large carbon deposits generated during graphene preparation can be removed by the cyclone separator, and the large carbon deposits can fall into the collection tank from a discharge port of the cyclone separator, so that dust can not be generated in the impurity removal process, and the harm to the body of a worker is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
in the figure: 1. an air inlet pipe; 2. an electric arc furnace roof; 3. a groove; 4. a disc; 5. an electric arc furnace; 6. an anode; 7. a cathode; 8. a base; 9. a discharge port of the electric arc furnace; 10. a first valve; 11. a cyclone separator; 12. a second valve; 13. a collection tank; 14. a discharge port of the cyclone separator; 15. an air outlet; 16. a gas-solid separation mechanism; 17. and connecting the pipelines.
Detailed Description
Example 1
The embodiment provides a rapid collecting device for preparing graphene powder by an arc process, the structure of which is shown in fig. 1-2, and the device comprises an arc furnace 5 for preparing graphene powder, a blowing mechanism, a cyclone separator 11, a collecting tank 13 and a gas-solid separation mechanism 16, wherein the arc furnace is cylindrical, an arc furnace top cover 2 is arranged at the top of the arc furnace, a cone base 8 with a cone angle of 90 degrees is connected at the bottom of the arc furnace top cover, an arc furnace discharge port 9 is arranged at the bottom of the base, a first valve 10 is arranged at the arc furnace discharge port, the blowing mechanism is arranged on the arc furnace top cover 2 and communicated with the arc furnace top cover, the blowing mechanism can rotate along the central axis thereof and lift in the arc furnace through manpower, the blowing mechanism comprises an air inlet pipe 1 and an inert gas source connected with the outside through an air inlet pipe, the air, the other end is arranged outside the electric arc furnace, the disc 4 with a hollow shape is arranged at one end inside the electric arc furnace, the air outlet holes in a plurality of horizontal directions are symmetrically formed in the circumferential surface of the disc, the disc is positioned in the groove 3 which is formed in the center of the top cover of the electric arc furnace and is matched with the disc, a feed inlet of a cyclone separator 11 is connected with an electric arc furnace discharge port 9 at the bottom of the base of the electric arc furnace through a detachable connecting pipeline 17, an air outlet 15 formed in the top end of the cyclone separator is connected with a gas-solid separation mechanism 16 through a detachable connecting pipeline, a cyclone separator discharge port 14 formed in the bottom of the cyclone separator is connected with a collecting tank 13 through a discharge pipeline, and a second valve 12 is arranged at the discharge.
When graphene is prepared, the blowing mechanism is in a closed state, the disc 4 of the blowing mechanism is placed in the groove 3 at the top end of the electric arc furnace 5 and keeps in sealed connection, meanwhile, the top cover 2 is kept in sealed connection with the electric arc furnace 5, the first valve 10 at the discharge port 9 of the electric arc furnace and the second valve 12 at the bottom end of the cyclone separator 11 are in a closed state, and the anode 6 and the cathode 7 in the electric arc furnace 5 are electrified to generate electric arcs to discharge graphite to prepare graphene.
When the graphene powder is collected in the embodiment, the first valve 10 of the discharge port 9 of the electric arc furnace and the second valve 12 at the bottom end of the cyclone separator 11 are opened, the air inlet pipe 1 rotates slowly for one circle at first, an external inert gas source is ejected from the air outlet hole on the disk 4 through the air inlet pipe 1 at high pressure to purge the graphene powder on the top cover 2 of the electric arc furnace, then the air inlet pipe 1 rotates slowly to blow the graphene powder on the side surface of the electric arc furnace 5 into the cyclone separator 11 from top to bottom, high-pressure gas containing impurities enters the cyclone separator 11 along the axial direction, airflow generates strong rotation under the guiding action of the guide vanes, airflow enters the cyclone cylinder along the cylinder in a spiral manner, impurities with high density are thrown to the wall of the cylinder under the centrifugal force, fall along the cylinder wall under the gravity action and enter the collection tank 13 through the discharge port 14 of the cyclone separator, and graphene powder with low density flows out from the air outlet 15 of the cyclone separator 11 along with rising airflow and enters And the gas-solid separation mechanism 16, and finally, the graphene powder is remained in the gas-solid separation mechanism 16.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a quick collection device of electric arc legal system preparation graphite alkene powder, includes electric arc furnace, blowing mechanism, cyclone and the gas-solid separating mechanism who is used for preparing graphite alkene powder, its characterized in that: the electric arc furnace is cylindric, is provided with the electric arc furnace top cap at the electric arc furnace top, and the bottom is connected with the base, is equipped with the discharge gate bottom this base, the mechanism of blowing sets up on the top cap of electric arc furnace and rather than the intercommunication, and this mechanism of blowing can follow its central axis rotation through the manual work and go up and down in the electric arc furnace, the mechanism of blowing includes the intake pipe and passes through the inert gas air supply that intake pipe and external world link to each other the intake pipe sets up with the electric arc furnace top cap is perpendicular, and in the electric arc furnace was arranged in to the one end of intake pipe, the outside of electric arc furnace is arranged in to the other end, cyclone's feed inlet is connected with the electric arc furnace discharge gate of electric arc furnace base bottom through.
2. The collection device for preparing graphene powder by using the arc method according to claim 1, wherein the collection device comprises: the discharge hole of the electric arc furnace is provided with a first valve.
3. The rapid collection device for preparing graphene powder by using the arc process according to claim 2, characterized in that: the air inlet pipe is arranged in the arc furnace, one end of the air inlet pipe is a hollow disc, and a plurality of air outlet holes in the horizontal direction are symmetrically arranged on the circumferential surface of the disc.
4. The rapid collection device for preparing graphene powder by using the arc process according to claim 3, characterized in that: the center position of electric arc furnace top cap is equipped with the recess with disc looks adaptation, the disc is located this recess.
5. The rapid collection device for preparing graphene powder by using the arc method according to claim 1, characterized in that: the base is a cone with a cone angle of 90 degrees.
6. The rapid collection device for preparing graphene powder by using the arc method according to claim 1, characterized in that: still including the collection tank that is used for collecting impurity, this collection tank passes through the cyclone discharge gate that discharge tube says and connects cyclone bottom setting.
7. The rapid collection device for preparing graphene powder by using the arc method according to claim 6, characterized in that: and a second valve is arranged at a discharge port arranged at the bottom of the cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986300.7A CN112194118A (en) | 2020-09-18 | 2020-09-18 | Quick collection device of graphite alkene powder is prepared to electric arc method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986300.7A CN112194118A (en) | 2020-09-18 | 2020-09-18 | Quick collection device of graphite alkene powder is prepared to electric arc method |
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| CN112194118A true CN112194118A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010986300.7A Pending CN112194118A (en) | 2020-09-18 | 2020-09-18 | Quick collection device of graphite alkene powder is prepared to electric arc method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542528A (en) * | 2016-11-09 | 2017-03-29 | 新奥科技发展有限公司 | A kind of preparation facilitiess of Graphene and the method for preparing Graphene using the preparation facilitiess and annealing reparation being carried out to Graphene |
| CN110817854A (en) * | 2019-12-16 | 2020-02-21 | 山东科技大学 | Device and method for preparing graphene |
| CN214528155U (en) * | 2020-09-18 | 2021-10-29 | 南京源昌新材料有限公司 | Collection device for preparing graphene powder by arc process |
-
2020
- 2020-09-18 CN CN202010986300.7A patent/CN112194118A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542528A (en) * | 2016-11-09 | 2017-03-29 | 新奥科技发展有限公司 | A kind of preparation facilitiess of Graphene and the method for preparing Graphene using the preparation facilitiess and annealing reparation being carried out to Graphene |
| CN110817854A (en) * | 2019-12-16 | 2020-02-21 | 山东科技大学 | Device and method for preparing graphene |
| CN214528155U (en) * | 2020-09-18 | 2021-10-29 | 南京源昌新材料有限公司 | Collection device for preparing graphene powder by arc process |
Non-Patent Citations (1)
| Title |
|---|
| 黄寿椿等人: "《第十四章 吹灰 除尘、除灰渣设备》", 31 December 1998, 《机械工业出版社》, pages: 14 - 3 * |
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