Graphene production and preparation device

Abstract

The invention discloses a graphene production and preparation device, and relates to the technical field of graphene production, the graphene production and preparation device comprises a kettle body, the top of the kettle body is hermetically connected with an end cover matched with the kettle body, the top of the end cover is provided with a motor cover communicated with the end cover, and the motor cover is internally provided with a driving assembly; the output end of the driving assembly is in linkage connection with a stirring assembly, the inner side of the stirring assembly is movably provided with a stirring assembly rotationally connected with the output end of the driving assembly, and the stirring assembly is reversely stirred by the acting force of the stirring assembly. The stirring assembly and the movable assembly are arranged, so that the stirring rod can realize fixed-point horizontal stirring while rotating and stirring under the rotating force of the motor, fixed-point longitudinal stirring can be realized after the force is released, and materials in the reaction kettle can be subjected to staged positioning horizontal vibration and small-amplitude up-down vibration in the stirring process; therefore, the mixing uniformity is better, the materials are closer, and the direct influence of air on material mixing is reduced.

Description

Technical Field

[0001] This invention relates to the field of graphene production technology, specifically a graphene production and preparation apparatus. Background Technology

[0002] Graphene is a two-dimensional carbon material formed by carbon atoms bonded by sp² hybridization. It has a single-layer hexagonal honeycomb lattice structure and is an allotrope of carbon. Graphene possesses excellent optical, electrical, and mechanical properties, and has significant application prospects in materials science, micro / nano fabrication, energy, biomedicine, and drug delivery. It is considered a revolutionary material for the future. Graphene can be produced using micromechanical exfoliation: through physical methods, such as repeatedly attaching and peeling highly oriented pyrolytic graphite (HOPG) with tape, the number of graphite layers is gradually reduced to a single layer or a few layers to obtain graphene. The advantage of this method is that the obtained graphene is pure and of high quality, but the disadvantages are low yield and high cost, making it suitable for small-scale sample preparation.

[0003] To enable the entire graphene production process to be completed within a single reaction vessel and to simplify the graphene production steps, a graphene production preparation device (see patent number: 201911272744.8) has been developed. The device includes a support frame, with a reaction vessel mounted above the support frame. A fixed rotating shaft is located on one side of the support frame and connected to one side of the reaction vessel. A drive shaft is located on the other side of the support frame and connected to the other side of the reaction vessel. A drive gear is mounted on the drive shaft. A first motor is also located on the other side of the support frame, with its output end connected to the drive shaft. A driven gear is also located on the other side of the reaction vessel, meshing with the drive gear. The bottom of the reaction vessel has an inlet and an outlet. A first stirring shaft with first stirring blades is located inside the reaction vessel. This invention, through its integrated structure, enables the entire graphene production process to be completed within a single reaction vessel, simplifying the graphene production steps and improving production efficiency.

[0004] However, the existing reaction vessels used in graphene production typically only have stirring tools that can be used for stirring, and only horizontally. Some reactants adhere directly to the stirring tools and are difficult to remove. Subsequent water or air flushing is required to peel off the material adhering to the stirring shaft, but this process often leaves residues and is cumbersome and slow. Furthermore, untreated residues adhering to the stirring shaft result in poor mixing with other materials in the reaction vessel. In addition, the functionality of this stirring tool is limited. If material blockage occurs during the reaction vessel's discharge, the stirring tool, due to its high rotation speed and wide stirring range, is inconvenient to use for clearing the blockage, thus reducing its utilization rate. Summary of the Invention

[0005] The purpose of this invention is to provide a graphene production and preparation device to solve the problems of monotonous operation of stirring tools, poor cleaning of residues adhering to the stirring tools, and poor mixing with other mixtures before treatment, which easily leads to uneven mixing and thus poor performance of the reaction vessel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a graphene production and preparation apparatus, comprising a vessel body, the top of which is sealed and connected to a matching end cap, and the top of the end cap is provided with a motor cover communicating with it. A drive assembly is installed inside the motor cover, and a stirring assembly is linked to the output end of the drive assembly. A toggle assembly is movably disposed inside the stirring assembly and rotatably connected to the output end of the drive assembly. The toggle assembly is toggled in the opposite direction by the force of the stirring assembly. Multiple sets of movable components that are shaken by the toggle assembly are uniformly disposed on one side of the stirring assembly and inside the vessel body.

[0007] The drive assembly includes a motor, the output end of which is provided with a support plate. Arc-shaped parts and support rods are symmetrically arranged on both sides of the support plate. An electric push rod is rotatably installed at the middle position of the bottom of the support plate. The output end of the electric push rod is provided with a tension rod extending to the bottom of the stirring assembly. The bottom end of the tension rod is provided with a threaded fan blade. Multiple sets of pressing parts are evenly arranged on the outside of the tension rod. Multiple sets of protrusions are evenly arranged on the outer side of the bottom of the pressing parts.

[0008] The stirring assembly includes a stirring tube, a connecting seat is provided at the top of the stirring tube, and multiple sets of annular limiting grooves are evenly arranged inside the stirring tube.

[0009] The multiple sets of the moving components include a stirring rod, and each stirring rod has an annular bracket located outside the stirring tube and movably connected to the stirring tube on one side. Each annular bracket has a connecting tube located inside the stirring tube and movably connected to the tension rod on the outside. Each connecting tube has a cut surface at the top and a spring-loaded component at the bottom.

[0010] As a further embodiment of the present invention: the bottom of the connecting seat is symmetrically provided with a limiting frame, a hook-shaped limiting member and an elastic member on both sides. The limiting frame is fixedly connected to the connecting seat, the hook-shaped limiting member is movably connected to the limiting frame by the elastic member, and the support rod is movably connected to the hook-shaped limiting member in the opposite direction.

[0011] As a further embodiment of the present invention: a base is provided below the vessel body, and support legs are provided at the four corners of the top of the base. A fixing ring is provided at the top of the support legs and fixed to the bottom of the vessel body. Heat dissipation holes for heat dissipation are provided on the end face of the motor cover.

[0012] As a further embodiment of the present invention: each side of the connecting pipe is provided with a fixing block that is fixedly connected to the inside of the annular bracket and extends to the outside of the stirring pipe.

[0013] As a further aspect of the present invention: the cut surface matches the bump, and the surface of the cut surface slides down from left to right, while the bottom height of the bump slides up from left to right.

[0014] As a further embodiment of the present invention: multiple sets of movable holes are evenly provided at the bottom of one side of the stirring tube, and the fixed block extends into the interior of the stirring tube through the movable holes.

[0015] As a further embodiment of the present invention: the top and bottom of the rebound member are provided with a movable ring and a fixed ring, and the movable ring and the fixed ring are located inside the stirring tube and outside the tension rod, wherein the fixed ring is fixedly connected to the bottom end inside the annular limiting groove, and the top of the movable ring is fixedly connected to the top of the connecting tube.

[0016] As a further aspect of the present invention: a sealing block is provided at the bottom of the interior of the motor cover, the sealing block being used to isolate the connecting seat from the end cover.

[0017] As a further embodiment of the present invention: a nut is threaded on the top of the outer side of the connecting seat, and the support rod is detachably connected to the connecting seat through the cooperation of the nut, the hook-shaped limiting member, the elastic member and the limiting frame.

[0018] As a further embodiment of the present invention: the two sides of the support plate are symmetrically provided with movable grooves, and each of the two sets of arc-shaped parts is provided with an extension rod extending into the movable groove on one side of the adjacent side, and a spring is provided on the outside of the extension rod and in the inside of the extension rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Through the set toggle and movable components, the stirring rod can achieve fixed-point horizontal toggle while being rotated and stirred by the motor's rotation force. After the force is released, it can also achieve fixed-point longitudinal toggle. The vibration force not only ensures the uniformity of material mixing, but also performs staged horizontal vibration and small-amplitude vertical vibration on the material inside the reactor during the stirring process, thereby improving the uniformity of mixing, making the materials more compact, and reducing the direct impact of air on material mixing. At the same time, when cleaning the stirring rod and stirring tube, the equipment can perform a flushing operation during operation. The vibration force generated during operation, combined with flushing, makes it easier to clean the residues attached to the surface.

[0021] 2. The toggle mechanism prevents material blockage during reactor feeding and has a smaller operating range, enabling precise operation. It also reduces the direct impact of the larger stirring tool on feeding, making it easier to clear material and thus improving utilization. Attached Figure Description

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This is a cross-sectional view of the vessel body of the present invention;

[0024] Figure 3 This is a planar sectional view of the vessel body of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the stirring assembly of the present invention;

[0026] Figure 5 This is a partial perspective sectional view of the present invention;

[0027] Figure 6 This is a partial structural diagram of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the stirring assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the stirring assembly of the present invention after its operation;

[0030] Figure 9 This is a perspective view of the stirring assembly of the present invention;

[0031] Figure 10 For the present invention Figure 3 Enlarged view of A in the middle;

[0032] Figure 11 This is a schematic diagram of the structure of the active component of the present invention;

[0033] Figure 12 For the present invention Figure 5 Enlarged view of B in the middle;

[0034] Figure 13 For the present invention Figure 5 A magnified view of C.

[0035] In the picture:

[0036] 1. Vessel body; 101. Base; 102. Support leg; 103. End cap; 104. Motor cover;

[0037] 2. Drive assembly; 201. Motor; 202. Support plate; 203. Arc-shaped component; 204. Support rod;

[0038] 3. Mixing assembly; 301. Mixing tube; 302. Connecting seat; 303. Limiting frame; 304. Hook-type limiting component; 305. Elastic component; 306. Annular limiting groove;

[0039] 4. Actuating assembly; 401. Electric push rod; 402. Tension rod; 403. Pressing component;

[0040] 5. Moving components; 501. Stirring rod; 502. Annular support; 503. Springback component; 504. Connecting pipe; 505. Cross-section;

[0041] 6. Nuts. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 13 In this embodiment of the invention, a graphene production and preparation device includes a vessel body 1. The top of the vessel body 1 is sealed with a matching end cap 103, and the top of the end cap 103 is provided with a motor cover 104 communicating with it. A drive assembly 2 is installed inside the motor cover 104. A stirring assembly 3 is linked to the output end of the drive assembly 2. A toggle assembly 4 is movably arranged inside the stirring assembly 3 and is rotatably connected to the output end of the drive assembly 2. The toggle assembly 4 is toggleed in the opposite direction by the force of the stirring assembly 3. Multiple sets of movable components 5 that are shaken by the toggle assembly 4 are uniformly arranged on one side of the stirring assembly 3 and inside the vessel body 1.

[0044] The drive assembly 2 includes a motor 201. The output end of the motor 201 is provided with a support plate 202. Arc-shaped parts 203 and support rods 204 are symmetrically arranged on both sides of the support plate 202. An electric push rod 401 is rotatably mounted at the middle position of the bottom of the support plate 202. The output end of the electric push rod 401 is provided with a tension rod 402 extending to the bottom of the stirring assembly 3. The bottom end of the tension rod 402 is provided with a threaded fan blade. Multiple sets of pressing parts 403 are evenly arranged on the outside of the tension rod 402. Multiple sets of protrusions are evenly arranged on the outer side of the bottom of the pressing parts 403.

[0045] The stirring assembly 3 includes a stirring tube 301, a connecting seat 302 is provided at the top of the stirring tube 301, and multiple sets of annular limiting grooves 306 are evenly arranged inside the stirring tube 301.

[0046] The multiple sets of movable components 5 include a stirring rod 501. Each side of the stirring rod 501 is provided with an annular support 502 located outside the stirring tube 301 and movably connected to the stirring tube 301. Inside each annular support 502, there is a connecting tube 504 located inside the stirring tube 301 and movably connected to the tension rod 402. The top of each connecting tube 504 is provided with a cut surface 505, and the bottom of each connecting tube 504 is provided with a spring-loaded component 503.

[0047] In this embodiment, when cleaning the material adhering to the stirring rod 501 and stirring tube 301, an external water pipe or air pipe is used to guide the water pipe or air pipe into the reactor through the feed port, and to flush the stirring rod 501 and stirring tube 301 inside. During the flushing process, the equipment can be operated while running. The stirring rod 501 is subjected to force to generate vibration force. The vibration force generated during operation, combined with the flushing, facilitates the removal of residues, making the cleaning of residues adhering to its surface simpler.

[0048] In this embodiment, sealing rings are provided at the top and bottom of the annular support 502. The sealing rings cover the movable hole and seal the connection between the annular support 502 and the stirring tube 301, ensuring the sealing between the annular support 502 and the stirring tube 301 when the annular support 502 moves up and down, and preventing materials from entering the interior of the stirring tube 301 from the gaps in the connection.

[0049] like Figures 1 to 13 As shown, the bottom of the connecting seat 302 is symmetrically provided with a limiting frame 303, a hook-shaped limiting member 304, and an elastic member 305 on both sides. The limiting frame 303 is fixedly connected to the connecting seat 302, and the hook-shaped limiting member 304 is movably overlapped with the limiting frame 303 by the elastic member 305. The hook-shaped limiting member 304 and the limiting frame 303 are locked together like a hook (see details). Figure 5 and Figure 12 An elastic element 305 is provided at a position adjacent to the hook-shaped limiting member 304 and the limiting frame 303. The top and bottom of the elastic element 305 are welded to the adjacent end faces of the hook-shaped limiting member 304 and the limiting frame 303, respectively, so that the hook-shaped limiting member 304 and the limiting frame 303 have a certain range of movement. The support rod 204 is movably overlapped with the hook-shaped limiting member 304 in the opposite direction. The bottom of the support rod 204 is hooked in the opposite direction to the inside of the hook-shaped limiting member 304, which is adjacent to the limiting frame 303. However, the limiting frame 303 is fixed, while the hook-shaped limiting member 304 can move under force.

[0050] The top of the outer side of the connecting seat 302 is threaded with a nut 6. The support rod 204 is detachably connected to the connecting seat 302 through the mutual cooperation of the nut 6, the hook-shaped limiting member 304, the elastic member 305 and the limiting frame 303. The two sides of the support plate 202 are symmetrically provided with movable grooves. Each side of the two sets of arc-shaped members 203 is provided with an extension rod extending into the movable groove. The extension rod is provided with a spring on the outside of the extension rod and inside the movable groove.

[0051] In this embodiment, when it is necessary to connect the stirring tube 301 and the support plate 202, the nut 6 on the outside of the connecting seat 302 can be removed from the connecting seat 302, so that the nut 6 is removed from the upper thread of the connecting seat 302. Then, push the two sets of support rods 204 outwards, so that the support rods 204, carrying the arc-shaped part 203 at their top, move away from the support plate 202, and carry the extension rod located inside the movable groove (see details). Figure 10 and Figure 13 This causes the extension rod to exert a compressive force on the spring located inside the movable groove, causing it to deform under stress and generating a corresponding rebound force on the extension rod, thus facilitating subsequent reset.

[0052] Then, the height of the stirring tube 301 can be adjusted by moving it up and down along the electric push rod 401 until it is moved to a suitable position, and the support rod 204 is positioned on the side of the hook-shaped limiting member 304. Then, the support rod 204 is pressed along the lower right direction of the hook-shaped limiting member 304 to the position of the connecting seat 302, so that the bottom side of the support rod 204 directly generates a thrust on the hook-shaped limiting member 304. At the same time, because the bottom hook end of the support rod 204 has an arc-shaped structure (see details...), Figure 5 and Figure 12 The hook-shaped limiting member 304 has a corresponding arc-shaped structure on its side. When it is subjected to force, it moves upward along the limiting frame 303 under the action of the elastic member 305. At the same time, the support rod 204 continues to move towards the middle of the connecting seat 302 until the hook-shaped limiting member 304 and the support rod 204 cross and overlap together. Then, the nut 6 is screwed on the top position of the outer side of the connecting seat 302 and is just above the hook-shaped limiting member 304. This is used to press and support the hook-shaped limiting member 304, ensuring that the overlap stability between the support rod 204 and the connecting seat 302 is better after using the nut 6, and it will not fall off due to rotational force.

[0053] like Figures 1 to 13 As shown, a base 101 is provided below the vessel body 1. Support legs 102 are provided at the four corners of the top of the base 101. A fixing ring is provided at the top of the support legs 102 and fixed to the bottom of the vessel body 1. A heat dissipation hole is provided on the end face of the motor cover 104 for heat dissipation. A sealing block is provided at the bottom of the inside of the motor cover 104. The sealing block is used to isolate the connecting seat 302 from the end cover 103.

[0054] In this embodiment, heat dissipation holes are used to provide a channel for the heat generated by the motor 201 during operation, which facilitates heat dissipation and reduces the direct impact of heat energy on it. The fixing ring is used to fix the support leg 102 and the vessel body 1, and the base 101 has an elliptical arc structure. The reserved space allows the operator to handle the discharged materials, reducing the difficulty of operation. The sealing block is used to isolate the storage space between the connecting seat 302 and the end cover 103, avoiding the direct impact of materials on it and ensuring the service life of the equipment.

[0055] like Figures 1 to 13 As shown, each side of the connecting pipe 504 is provided with a fixing block that is fixedly connected to the inside of the annular bracket 502 and extends to the outside of the stirring pipe 301. Multiple sets of movable holes are evenly provided at the bottom of one side of the stirring pipe 301, and the fixing block extends into the inside of the stirring pipe 301 through the movable holes.

[0056] In this embodiment, the fixing block is used to connect the connecting pipe 504 and the annular bracket 502, and moves inside the movable hole. The connecting pipe 504 is used to rotate under force, and the annular bracket 502 is used to block the movable hole and ensure that it operates better along the stirring pipe 301.

[0057] like Figures 1 to 13 As shown, the facet 505 matches the bump, and the surface of the facet 505 slides down from left to right, while the bottom height of the bump slides up from left to right.

[0058] In this embodiment, since the top cut surface 505 of the connecting pipe 504 matches the bottom of the pressing member 403, and the connecting pipe 504 can move inside the annular limiting groove 306 and is affected by the rebound force of its bottom spring member 503, it generates a reverse force on the pressing member 403. Thus, when the pressing member 403 is under pressure, the connecting pipe 504 will be subjected to force along the inclined surface of the cut surface 505 and rotate along the tension rod 402, thereby driving the stirring rod 501 to rotate horizontally along the movable hole provided on the side of the stirring pipe 301.

[0059] like Figures 1 to 13 As shown, the top and bottom of the spring-loaded component 503 are provided with a movable ring and a fixed ring, and the movable ring and the fixed ring are located inside the stirring tube 301 and outside the tension rod 402. The fixed ring is fixedly connected to the bottom end inside the annular limiting groove 306, and the top of the movable ring is fixedly connected to the top of the connecting tube 504.

[0060] In this embodiment, the spring-loaded component 503 is used to generate a spring-loaded force on the connecting pipe 504, which facilitates its horizontal and longitudinal reset. This allows the stirring rod 501 to achieve fixed-point horizontal movement while being rotated and stirred by the rotational force of the motor 201. After the force is released, it can also achieve fixed-point longitudinal movement. The vibration force not only ensures the uniformity of material mixing, but also allows for staged horizontal vibration and small-amplitude vertical vibration of the material inside the reactor during the stirring process. This results in better mixing uniformity, tighter material density, and reduced direct impact of air on material mixing.

[0061] Working principle: The material and reactants are introduced into the vessel body 1 through the feed port on the end cap 103. Then, the output end of the motor 201 rotates under the action of electricity, which drives the support plate 202 at its bottom to rotate. The support plate 202 drives the support rod 203 and the connecting seat 302 to rotate, which causes the rotating connecting seat 302 to move the stirring tube 301 at its bottom. The rotating stirring tube 301 directly drives the stirring rod 501 on its side to rotate, thereby stirring the material inside the vessel body 1.

[0062] As the support plate rotates, it directly drives the electric push rod 401 and the tension rod 402 inside it to move simultaneously. Then, the output end of the electric push rod 401 extends under the action of electricity. The output end of the electric push rod 401 directly pushes the tension rod 402 at its bottom to carry the pressing member 403 downward and generates a downward pushing force on the connecting pipe 504 located inside the annular limiting groove 306. At the same time, since the cut surface 505 at the top of the connecting pipe 504 matches the bottom of the pressing member 403, and the connecting pipe 504 can move inside the annular limiting groove 306, it is affected by the rebound force of the bottom rebound member 503, which causes it to generate a reverse force on the pressing member 403. Thus, the pressing member 403 is under downward pressure. The connecting pipe 504 will be subjected to force along the inclined surface of the cut surface 505 and rotate along the tension rod 402, thereby driving the stirring rod 501 to rotate horizontally along the movable hole provided on the side of the stirring tube 301.

[0063] Furthermore, when the output end of the electric push rod 401 is reset, the connecting pipe 504 will carry the stirring rod 501 to a horizontal reset. This allows the stirring rod 501 to rotate and stir under the rotational force of the motor 201 while also being able to move horizontally at a fixed point. When the pressing part 403 moves down, it will also press the connecting pipe 504 down a certain distance. After the electric push rod 401 releases its force, the connecting pipe 504 is reset under the action of the spring-loaded part 503, thereby achieving a fixed-point longitudinal movement. This not only shakes down the material adhering to the stirring structure, avoiding material waste, but also ensures the uniformity of material mixing. At the same time, it can also perform staged horizontal vibration and small-amplitude up-and-down vibration on the material inside the reactor during the stirring process, thereby improving the uniformity of mixing, making the materials more compact, and reducing the direct impact of air on material mixing.

[0064] In this embodiment, the electric push rod 401 has at least two positions. These two positions are used to control the extension length of the output end of the electric push rod 401. In the first position, the output end of the electric push rod 401 extends a small length and continues to extend and retract. In the second position, the output end of the electric push rod 401 extends completely and directly pushes the bottom of the tension rod 402 to move into the discharge pipe at the bottom of the vessel 1. When subjected to rotational force, it can directly generate a pushing force on the material located at that position, which facilitates subsequent discharge and avoids the phenomenon of inconvenience in discharge due to blockage.

[0065] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A graphene production and preparation apparatus, comprising a vessel body, a drive assembly mounted above the vessel body, a stirring assembly linked to the output end of the drive assembly, the stirring assembly including a stirring tube, and an actuating assembly movably disposed inside the stirring assembly and rotatably connected to the output end of the drive assembly, characterized in that, A plurality of movable components that are shaken by the stirring component are evenly arranged on one side of the stirring component and inside the vessel body, and also include; The drive assembly includes a motor, and the output end of the motor is provided with a support plate, an arc-shaped part, a support rod, an electric push rod and a tension rod. The bottom of the tension rod is provided with a threaded fan blade, and multiple sets of pressing parts are evenly arranged on the outside of the tension rod. Multiple sets of protrusions are evenly arranged on the outer side of the bottom of the pressing parts. The multiple moving components include a stirring rod, and each stirring rod has an annular support on one side located outside the stirring tube and movably connected to the stirring tube. Inside each annular support is a connecting tube located inside the stirring tube and movably connected to the tension rod. The top of each connecting tube has a cut surface, and the bottom of each connecting tube has a spring-loaded component.

2. The graphene production and preparation apparatus according to claim 1, characterized in that, The top of the stirring tube is equipped with a connecting seat. Multiple sets of annular limiting grooves are evenly arranged inside the stirring tube. On both sides of the bottom of the connecting seat, a limiting frame, a hook-shaped limiting component, and an elastic component are symmetrically arranged. The limiting frame is fixedly connected to the connecting seat. The hook-shaped limiting component and the limiting frame are movably overlapped by the elastic component. The support rod and the hook-shaped limiting component are movably overlapped in the opposite direction.

3. A graphene production and preparation apparatus according to claim 1, characterized in that, The top of the vessel is sealed with a matching end cap, and the top of the end cap is equipped with a motor cover that communicates with it. The drive assembly is installed inside the motor cover. A base is provided below the vessel, and support legs are provided at the four corners of the top of the base. The top of the support legs is equipped with a fixing ring that is fixed to the bottom of the vessel. The end face of the motor cover is provided with heat dissipation holes for heat dissipation.

4. A graphene production and preparation apparatus according to claim 1, characterized in that, One side of the connecting pipe is equipped with a fixing block that is fixedly connected to the inside of the annular bracket and extends to the outside of the stirring pipe.

5. A graphene production and preparation apparatus according to claim 1, characterized in that, The facets match the bumps, and the facet surfaces slide down from left to right, while the bottom height of the bumps slides up from left to right.

6. A graphene production and preparation apparatus according to claim 4, characterized in that, Multiple sets of movable holes are evenly arranged at the bottom of one side of the stirring tube, and the fixed block extends into the interior of the stirring tube through the movable holes.

7. A graphene production and preparation apparatus according to claim 1, characterized in that, The top and bottom of the spring-loaded component are provided with a movable ring and a fixed ring, which are located inside the stirring tube and outside the tension rod. The fixed ring is fixedly connected to the bottom end of the annular limiting groove, and the top of the movable ring is fixedly connected to the top of the connecting tube.

8. A graphene production and preparation apparatus according to claim 3, characterized in that, A sealing block is provided at the bottom inside the motor cover. The sealing block is used to isolate the connecting seat from the end cover.

9. A graphene production and preparation apparatus according to claim 2, characterized in that, A nut is threaded on the top of the outer side of the connecting seat, and the support rod is detachably connected to the connecting seat through the cooperation of the nut, hook-shaped limiting member, elastic member and limiting frame.

10. A graphene production and preparation apparatus according to claim 1, characterized in that, The arc-shaped components and support rods are symmetrically arranged on both sides of the support plate. The electric push rod is installed at the middle position of the bottom of the support plate. The tension rod is located at the output end of the electric push rod and extends to the bottom of the stirring assembly. The bottom of the tension rod is provided with a threaded fan blade. The two sides of the support plate are symmetrically arranged with movable grooves. Each side of the two sets of arc-shaped components is provided with an extension rod extending into the movable groove. The extension rod is provided with a spring on the outside of the extension rod and inside the movable groove.

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