CN118002046A - A reaction unit for flashing joule's heat method serialization production graphite alkene - Google Patents
A reaction unit for flashing joule's heat method serialization production graphite alkene Download PDFInfo
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- CN118002046A CN118002046A CN202410062061.4A CN202410062061A CN118002046A CN 118002046 A CN118002046 A CN 118002046A CN 202410062061 A CN202410062061 A CN 202410062061A CN 118002046 A CN118002046 A CN 118002046A
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- rotating
- flash
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 title claims description 3
- 239000010439 graphite Substances 0.000 title claims description 3
- -1 graphite alkene Chemical class 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000010453 quartz Substances 0.000 claims description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 6
- 238000010924 continuous production Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000009432 framing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
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- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229940071870 hydroiodic acid Drugs 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a reaction device for continuously producing graphene by a flash joule heating method, which comprises a fixed disc and a rotating disc which are opposite to each other, wherein the rotating disc and the fixed disc are fixed relative to the same fixed reference, and the rotating disc rotates relative to the fixed disc on the basis of the center; the rotating disc is externally connected with driving equipment, and the driving equipment drives the rotating disc to rotate at a single rotation angle which is the same as the interval angle between two adjacent functional pieces. According to the invention, each step of the process for preparing the graphene by the flash heating method is dispersed into different functional units, and continuous preparation by the flash heating method is realized through region-by-region work under a rotating state. The aim of continuously producing graphene by a flash Joule heating method is fulfilled based on the rotating disc and fixed disc structure disclosed by the invention.
Description
Technical Field
The invention discloses a reaction device for continuously producing graphene by a flash joule heating method, and relates to the technical field of continuous production devices by the flash joule heating method.
Background
The preparation method of the graphene comprises a mechanical stripping method, an electrochemical stripping method, a liquid phase stripping method, a chemical vapor deposition method, an epitaxial growth method, a chemical oxidation-reduction method and the like. Among them, the chemical oxidation-reduction method is the main mode for mass production of graphene at present, and has the advantages of the widest application range and high yield. The graphene oxide material is obtained by reducing graphene oxide by adopting chemical reducing agents such as sodium borohydride, hydroiodic acid, ascorbic acid, hydrazine hydrate and the like, thermal reduction, laser reduction, electrochemical reduction and other methods.
However, the conventional chemical reducing agent reduction method generally uses a large amount of chemical reagents, the post-treatment of the product is difficult, the environmental risk and the wastewater treatment difficulty are increased, and the obtained graphene product often needs further freeze drying to obtain graphene powder. Therefore, the method has low synthesis efficiency and is not friendly to the environment for large-scale production.
Compared with the prior art, the flash joule heating method is a technology for rapidly converting carbon materials into graphene by using current to pass through the carbon-containing materials to enable the carbon-containing materials to reach high temperature in a very short time and rapidly cool the carbon-containing materials; the graphene product synthesized by the preparation method has high quality, simple preparation process, no need of solvent or catalyst, high yield, low cost and no pollution.
The flash joule heating method requires high-energy discharge, so that less material is obtained by a single reaction, and compared with other preparation methods, various parameters are required to be accurately controlled, so that the development of the flash joule heating method is limited;
in summary, the related equipment for mass production of graphene based on the flash joule heating method is lacking in the prior art, and the development of related industrialization is restricted.
Disclosure of Invention
Although the flash joule heating method for producing graphene has higher complexity requirements on production equipment than other methods, in the long term, higher economic benefits can be obtained by continuous batch production of graphene by the flash joule heating method; the core for solving the problem that the graphene is difficult to mass produce by a flash Joule heating method in the prior art is that: how to optimize the design of electrode lap joint and feeding mode.
Specifically, the invention solves the problems by the following technical proposal:
the reaction device for continuously producing graphene by using a flash joule heating method comprises a fixed disc and a rotating disc which are opposite to each other, wherein the rotating disc and the fixed disc are fixed relative to the same fixed reference, and the rotating disc rotates relative to the fixed disc on the basis of the center;
The rotating disc is externally connected with driving equipment, and the driving equipment drives the rotating disc to rotate at a single rotation angle which is the same as the interval angle between two adjacent functional pieces.
Further, a driving machine is arranged at the connection end of the tube body and the rotating disc, the driving machine drives the electrode to axially move in the tube body, the electrode is externally connected with a capacitive power supply, and the rotating disc has the same interval time when rotating each time.
Further, the tube body is a quartz tube, and the functional piece comprises a feeding piece, a counter electrode head, a discharging piece and a quartz tube replacing piece which are sequentially arranged along the rotation direction of the rotating disc;
The feeding piece comprises a feeding rod which can move axially and is fixed in the fixed disc, and the motor of the feeding rod drives the feeding rod to reciprocate inside and outside the quartz tube opposite to the feeding rod;
The electrode head of the opposite electrode is driven by a motor to stretch out and draw back to the opposite quartz tube to press the raw material, the electrode head of the opposite electrode head and the opposite electrode head are externally connected to a power supply with the same capacitance property, and flash heat is generated between the opposite electrode head and the opposite electrode head when the power supply discharges;
the discharging piece comprises a discharging rod which can move axially and is fixed in the fixed disc, and the motor of the feeding rod drives the feeding rod to reciprocate inside and outside the quartz tube which is opposite to the feeding rod;
The quartz tube replacing piece comprises a clamping part and a contraction part, one axial end of the contraction part is movably fixed in the fixed disc, the other end of the contraction part extends out of the clamping part, and the clamping part clamps the quartz tube opposite to the clamping part after clamping.
Further, the feeding piece is communicated with a feeding hole, raw materials are released from the feeding hole at intervals, and the interval time is matched with the interval time of single rotation of the rotating disc; the discharging piece is communicated with a discharging box.
Further, the fixed disc and the rotating disc are fixed on the same bracket, the bracket comprises a rotating driver connected with the rotating disc and a rotating frame for framing the rotating disc therein, and the rotating frame extends out of a fixed plate for fixing the quartz tube;
the driver starts the rotating disc to integrally rotate with the rotating frame.
Further, the fixing plate and the quartz tube are fixed through a heat dissipation spring clamp.
Further, the rotary driver is provided with a selective communication disc, the inside of the selective communication disc is provided with a conductive material wrapping insulating material, and the two sides of the selective communication disc are respectively provided with conductive points of which the conductive material is partially exposed to the surface of the wrapping insulating material;
the two conductive points are respectively communicated with the capacitive power supply and an electrode head;
The selective communication disc is fixed relative to the bracket and keeps opposite to the opposite electrode head.
The beneficial effects are that:
According to the technical scheme, each step of the process for preparing the graphene by the flash heating method is dispersed into different functional units, and continuous preparation by the flash heating method is realized through region-by-region work in a rotating state. The aim of continuously producing graphene by a flash Joule heating method is fulfilled based on the rotating disc and fixed disc structure disclosed by the invention.
In the technical scheme of the invention, the positions of the feed inlet and the discharge outlet cannot be moved during production, so that the functional parts are arranged on the fixed disc. The functional piece comprises a feeding piece, a counter electrode head, a discharging piece and a quartz tube replacing piece, and further, different steps are switched by rotating the quartz tube with the built-in electrode, so that the problem of how to realize continuous production of graphene by a flash Joule heating method is solved.
In the technical scheme of the invention, the communication disc is selected to ensure that only the electrode tip which is rotated to be opposite to the opposite electrode tip is electrified in the rotating disc, and the electrode tip and the opposite electrode tip are communicated to the same capacitor power supply in the implementation case, so that the purposes of compression and flash heat in a single quartz tube of the fixed disc can be realized.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
FIG. 1 is a reaction device for continuously producing graphene by a flash Joule heating method according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rotating disk according to an embodiment of the present invention;
FIG. 3 is a schematic view of a rotating disk according to an embodiment of the present invention;
FIG. 4 is a diagram of a reaction apparatus for continuously producing graphene by a flash Joule heating method according to an embodiment of the present invention;
FIG. 5 is a partial cross-sectional view of a connection location of a rotatable disk to a bracket according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a selective communication tray according to an embodiment of the present invention.
In the accompanying drawings:
The device comprises a 1-driving device, a 2-supporting seat, a 3-transmission device, a 4-electrifying device, a workpiece rotating frame 5, a 6-telescopic power head, a 7-rotating disc, an 8-electrode seat, a 9-electrode head, a 10-quartz tube, an 11-heat dissipation spring clamp, a 12-fixing plate, a 13-feeding hole, a 14-feeding support seat, a 15-feeding manipulator, a 16-wire, a 17-opposite electrode head, an 18-replaceable electrode seat, a 19-telescopic power head, a 20-discharging manipulator, a 21-discharging support seat, a 22-electrode supporting seat, a 23-discharging box, a 24-insulating bottom plate, a 25-vacuum box chamber, a 26-conducting part, a 27-conducting point and a 28-selective communication disc.
Detailed Description
In order to more clearly illustrate the technical scheme of the present invention, the present invention will be described in detail with reference to examples.
Referring to fig. 1, a driving device 1 is mounted on a support base 2 and is provided with a transmission device 3 and is connected to a capacitor by an energizing device 4. The transmission device 3 can drive the workpiece rotating frame 5 to rotate. An electrode head 9 with a proper diameter selected according to the production requirement is arranged on the replaceable electrode seat 8 and fixed on the rotating disc 7. Electrode feeding is achieved by telescoping the power head 6. The quartz tube 10 matched with the inner diameter of the electrode head is arranged on the fixing plate 12 and is fixed by the heat dissipation spring clamp 11. The right side is fed by means of a feed opening 13 and a feed manipulator 15 fixed to a feed rotary disk 14. The counter electrode head 17 is fixed to the exchangeable electrode holder 18, and is fed by a telescopic power head 19, and is fixed to the electrode support 22. The discharge robot 20 is fixed to a discharge rotary plate 21 and is provided with a discharge box 23 in a corresponding position, all bearing blocks being fixed to an insulating base plate 24 and being carried out in a vacuum box 25 of suitable dimensions.
As shown in fig. 2 and 3, the device of this example comprises 4 process sites, a (loading site), B (reaction site), C (unloading site), and D (quartz tube exchange site). During operation, all quartz tubes 10 are firstly installed, and electrode heads 8 and 17 with proper diameters are selected to be installed on the replaceable electrode holders 9 and 18 respectively. Under the action of the transmission device 3, each quartz tube is sequentially queued to pass through the A, B, C positions, and the corresponding reaction operation is completed. At position a, the carbon material is fed into the quartz tube 10 under the control of the feed robot 15. In the B position, the electrodes 9 and 17 control the feeding amount by the telescopic power heads 6 and 19, thereby completing the reaction steps such as compression and flash heat. In the C position, the discharge robot 20 discharges the graphene in the quartz tube 10. In addition, the installation and replacement of the quartz tube 10 are manually completed at the D position, and when one batch of production is finished, an operator can install and replace the quartz tube at the D position with sufficient space under the condition of power failure. The position of the quartz tube 10 is integrally changed through the transmission device 3, so that the next quartz tube enters a loading procedure when the previous quartz tube is at a reaction position, and reaction preparation is made; when the former quartz tube is discharged, the next quartz tube enters the reaction procedure, so that the preparation for discharging is made, and the continuous production is realized.
In a preferred embodiment, the rotary actuator has a selective communication disc, which in this embodiment is disposed in the a-zone position shown in fig. 4. The internal cross-sectional structure of its partial location can be seen with reference to fig. 5. The rotary driver is provided with a selective communication disc, the inside of the selective communication disc is provided with a conductive material wrapping insulating material, and the two sides of the selective communication disc are respectively provided with conductive points of which the conductive material is partially exposed to the surface of the wrapping insulating material;
the two conductive points are respectively communicated with the capacitive power supply and one electrode head, and the selective communication disc is fixed relative to the bracket and keeps opposite to the opposite electrode head. In the preferred embodiment, the four electrode heads on the rotating disk are provided with conductive parts extending to the rotating communication disk, and the conductive parts also form circular ring distribution, and the specific case is shown in fig. 6.
In use, since the selective communication plate has the conductive points only in the area facing the opposite electrode tip, only the conductive portions extending from the electrode tip corresponding to the opposite electrode tip can be in contact with the conductive points. After contact, the capacitor discharges the electrode head and the opposite electrode head simultaneously to realize flash heat.
The above is only an example portion of the application and is not intended to limit the application in any way. Any simple modification, equivalent variation and modification of the above embodiments still fall within the scope of the protection of the technical solution of this application.
Claims (7)
1. A reaction unit for continuous production graphite alkene of flash of light joule's heat method, its characterized in that: the device comprises a fixed disc and a rotating disc which are opposite to each other, wherein the rotating disc and the fixed disc are fixed relative to the same fixed reference, and the rotating disc rotates relative to the fixed disc on the basis of the center;
The rotating disc is externally connected with driving equipment, and the driving equipment drives the rotating disc to rotate at a single rotation angle which is the same as the interval angle between two adjacent functional pieces.
2. The reaction device for continuously producing graphene by using a flash joule heating method according to claim 1, wherein: the connecting end of the tube body and the rotating disc is provided with a driving machine, the driving machine drives the electrode to axially move in the tube body, the electrode is externally connected with a capacitive power supply, and the rotating disc has the same interval time when rotating each time.
3. The reaction device for continuously producing graphene by using a flash joule heating method according to claim 2, wherein: the tube body is a quartz tube, and the functional parts comprise a feeding part, a counter electrode head, a discharging part and a quartz tube replacing part which are sequentially arranged along the rotating direction of the rotating disc;
The feeding piece comprises a feeding rod which can move axially and is fixed in the fixed disc, and the motor of the feeding rod drives the feeding rod to reciprocate inside and outside the quartz tube opposite to the feeding rod;
The electrode head of the opposite electrode is driven by a motor to stretch out and draw back to the opposite quartz tube to press the raw material, the electrode head of the opposite electrode head and the opposite electrode head are externally connected to a power supply with the same capacitance property, and flash heat is generated between the opposite electrode head and the opposite electrode head when the power supply discharges;
the discharging piece comprises a discharging rod which can move axially and is fixed in the fixed disc, and the motor of the feeding rod drives the feeding rod to reciprocate inside and outside the quartz tube which is opposite to the feeding rod;
The quartz tube replacing piece comprises a clamping part and a contraction part, one axial end of the contraction part is movably fixed in the fixed disc, the other end of the contraction part extends out of the clamping part, and the clamping part clamps the quartz tube opposite to the clamping part after clamping.
4. The reaction device for continuously producing graphene by using a flash joule heating method according to claim 3, wherein: the feeding piece is communicated with a feeding hole, raw materials are released from the feeding hole at intervals, and the interval time is matched with the interval time of single rotation of the rotating disc; the discharging piece is communicated with a discharging box.
5. The reaction device for continuously producing graphene by using a flash joule heating method according to claim 3, wherein: the fixed disc and the rotating disc are fixed on the same bracket, the bracket comprises a rotating driver connected with the rotating disc and a rotating frame for framing the rotating disc therein, and the rotating frame extends out of a fixed plate for fixing the quartz tube;
the driver starts the rotating disc to integrally rotate with the rotating frame.
6. The reaction device for continuously producing graphene by using a flash joule heating method according to claim 5, wherein: the fixing plate and the quartz tube are fixed through a heat dissipation spring clamp.
7. The reaction device for continuously producing graphene by using a flash joule heating method according to claim 5, wherein: the rotary driver is provided with a selective communication disc, the inside of the selective communication disc is provided with a conductive material wrapping insulating material, and the two sides of the selective communication disc are respectively provided with conductive points of which the conductive material is partially exposed to the surface of the wrapping insulating material;
the two conductive points are respectively communicated with the capacitive power supply and an electrode head;
The selective communication disc is fixed relative to the bracket and keeps opposite to the opposite electrode head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410062061.4A CN118002046A (en) | 2024-01-16 | 2024-01-16 | A reaction unit for flashing joule's heat method serialization production graphite alkene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410062061.4A CN118002046A (en) | 2024-01-16 | 2024-01-16 | A reaction unit for flashing joule's heat method serialization production graphite alkene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118002046A true CN118002046A (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410062061.4A Pending CN118002046A (en) | 2024-01-16 | 2024-01-16 | A reaction unit for flashing joule's heat method serialization production graphite alkene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118002046A (en) |
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- 2024-01-16 CN CN202410062061.4A patent/CN118002046A/en active Pending
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