A mixing device and usage method for preparing graphene synthetic leather

Abstract

The present invention relates to the technical field of graphene synthetic leather preparation, and discloses a mixing device and a use method for graphene synthetic leather preparation. The preparation device includes: a mixing tank and an end cover fixed on the upper end. A motor is fixed on the end cover, and the driving end of the motor is connected to a transmission. A stirring plate is rotatably arranged in the mixing tank. A filling cover is arranged through the end cover. It is characterized in that it further includes: a heat equalizing part, which is arranged through the stirring plate and the end cover and is connected to the output end of the transmission; a reverse stirring part, which is rotationally and hermetically connected to the heat equalizing part and is located inside the stirring plate; a cleaning part, which is arranged on the heat equalizing part and the reverse stirring part and is located inside the stirring plate. The present invention improves the heating uniformity and efficiency, reduces the phenomenon of graphene agglomeration, and improves the dispersion and mixing efficiency by the collaborative design of the heat equalizing part, the stirring plate, the reverse stirring part and the cleaning part.

Description

Technical Field

[0001] The present invention relates to the technical field of graphene synthetic leather preparation, and particularly relates to a mixing device and a usage method for graphene synthetic leather preparation. Background Art

[0002] Graphene synthetic leather preparation usually uses a mixing and stirring device. It is necessary to add graphene materials and solvents into a mixing tank and stir and mix them by rotating a stirring plate. The formed mixture is used to further carry out the preparation work of graphene synthetic leather. The uniform dispersion and heating control of the mixed preparation materials are the key factors affecting the performance of the finished product. Traditional mixing devices mostly use external jackets or single stirring structures for heating and mixing, which have problems of low heat transfer efficiency and uneven temperature distribution, resulting in difficult effective regulation of solvent viscosity. Graphene is prone to agglomeration due to local temperature differences, affecting the dispersion quality. In addition, the residual materials in the existing equipment are difficult to clean thoroughly after mixing, which is prone to cross-contamination. Therefore, there is an urgent need for a mixing device for graphene synthetic leather preparation.

[0003] Traditional graphene mixing devices cause local overheating or insufficient temperature of the materials due to uneven heating, inaccurate control of solvent viscosity, insufficient dispersion of graphene, and easy agglomeration. Summary of the Invention

[0004] The present invention provides a mixing device for graphene synthetic leather preparation, which improves the heating uniformity and efficiency by the collaborative design of a heat equalizing part, a stirring plate, a reverse stirring part, and a cleaning part, reduces the phenomenon of graphene agglomeration, and improves the dispersion and mixing efficiency.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In a first aspect, a mixing device for graphene synthetic leather preparation includes: a mixing tank and an end cover fixed at the upper end. A motor is fixed on the end cover, and the driving end of the motor is connected to a transmission. A stirring plate is rotatably arranged in the mixing tank. It further includes:

[0007] A heat equalizing part, which penetrates through the stirring plate and the end cover and is connected to the output end of the transmission to convey heat transfer oil to uniformly heat the preparation materials in cooperation with the stirring plate;

[0008] A reverse stirring part, which is rotationally and hermetically connected to the heat equalizing part and is located inside the stirring plate to reversely stir the preparation materials;

[0009] A cleaning part, which is arranged on the heat equalizing part and the reverse stirring part and is located inside the stirring plate to be driven by the reverse stirring part and cooperate with the heat equalizing part to wash and clean the mixing tank and the stirring plate;

[0010] The heat equalizing part includes a filling and discharging part and a heat conducting part. The filling and discharging part penetrates through the filling cover and the mixing tank, and the heat conducting part is connected to the output end of the transmission and is rotationally and hermetically connected to the filling and discharging part;

[0011] The anti-stirring part includes a driving and connecting part and a disturbing part. The driving and connecting part is arranged inside the heat conducting part, and the disturbing part is rotationally and sealingly connected to the heat conducting part;

[0012] The cleaning part includes a spraying and cleaning part and a rotating brush part. The spraying and cleaning part penetrates through the disturbing part and the injection and discharge part, and the rotating brush part penetrates through the stirring plate symmetrically and is magnetically connected to the driving and connecting part.

[0013] Furthermore, the injection and discharge part includes:

[0014] A first sleeve, arranged at the output end of the transmission;

[0015] Two L-shaped pipes, symmetrically penetrating and fixedly arranged on the end cover and communicating with the first sleeve;

[0016] A discharge pipe, penetrating through the lower end of the mixing tank and fixedly connected;

[0017] A second sleeve, connected to the other end of the discharge pipe.

[0018] Furthermore, the heat conducting part includes:

[0019] A spiral pipe, fixed at the output end of the transmission, penetrating through the first sleeve, and rotationally and sealingly connected to the first sleeve through a shaft seal and a bearing;

[0020] A through port, opened on both sides of the spiral pipe and communicating with the first sleeve;

[0021] Two C-shaped pipes, symmetrically penetrating through the stirring plate and the spiral pipe, and one end extending to the inner side of the spiral pipe;

[0022] A rotating connection part, arranged below the spiral pipe and rotationally and sealingly connected to the second sleeve.

[0023] Furthermore, the rotating connection part includes:

[0024] A rotating rod, fixedly penetrating through the stirring plate and located below the spiral pipe;

[0025] Two rotating sleeves, respectively rotationally and sealingly connected to both ends of the rotating rod through bearings and shaft seals, and one of them is rotationally and sealingly connected to the lower end of the spiral pipe through bearings and shaft seals;

[0026] A cylindrical groove, opened at the lower end of the rotating rod and communicating with the other end of the C-shaped pipe;

[0027] A connecting pipe, one end rotationally and sealingly connected to the lower end of the other rotating sleeve through bearings and shaft seals, and the other end rotationally and sealingly connected to the second sleeve.

[0028] Furthermore, the disturbing part includes:

[0029] Stirring plates, symmetrically fixed on the outer sides of the two rotating sleeves;

[0030] Fixed plate, fixed to the inner side of the stirring plate;

[0031] Turbo, rotatably arranged inside the spiral tube and connected to the spiral sleeve.

[0032] Furthermore, the driving and connecting member includes:

[0033] Vertical rod, movably passing through the spiral tube, the rotating rod and the connecting tube, and the upper end is connected to the turbo;

[0034] Push plates, there are two of them, fixed to the outer side of the vertical rod and respectively located inside the two spiral sleeves;

[0035] T-shaped plates, fixed to both ends of the push plates and connected to the spiral sleeve for lifting and guiding.

[0036] Furthermore, the spraying and cleaning member includes:

[0037] Arc plates, symmetrically fixed to the push plates;

[0038] Water channels, opened inside the stirring plate, passing through one end of the stirring plate and communicating with the spiral sleeve;

[0039] Sealing gaskets, fixed to the outer side of the arc plates, fitting with the inner wall of the spiral sleeve and corresponding to the positions of the water channels;

[0040] Tapered openings, passing through the stirring plate and communicating with the water channels;

[0041] Rubber flaps, symmetrically arranged inside the tapered openings and fixedly connected to the outer side of the stirring plate;

[0042] Collecting and filtering part, arranged at the lower end of the vertical rod and sealingly passing through the second sleeve.

[0043] Furthermore, the collecting and filtering part includes:

[0044] Link rod, fixed to the lower end of the vertical rod, movably passing through the second sleeve and elastically connected to the second sleeve;

[0045] Rubber ring, passing through the lower end of the second sleeve, fixedly connected and wrapping around the outer side of the link rod;

[0046] Arc arch plate, fixed to the lower end of the link rod;

[0047] Semicircular seat, rotatably sleeved on the outer sides of the arc arch plate and the link rod;

[0048] Tapered plate, threadedly connected to the lower end of the semicircular seat and having a plurality of through holes internally;

[0049] Poking rod, one end welded to the outer side of the link rod and close to the inner wall of the tapered plate.

[0050] Furthermore, the rotating brush member includes:

[0051] The first magnet is fixed to the outer side of the longitudinal rod through a connecting component and is located inside the connecting pipe.

[0052] The second magnet is movably sleeved on the outer side of the connecting pipe and is magnetically connected to the first magnet.

[0053] One end of the pressing rod is fixedly connected to the second magnet through a connecting component, and the other end penetrates through the stirring plate.

[0054] The round head is fixed to the other end of the pressing rod and is located inside the stirring plate.

[0055] The triangular plate is arranged in the stirring plate in a translational manner, is located below the round head, contacts the round head, and is elastically connected to the stirring plate.

[0056] There are two nylon brushes, which are symmetrically arranged in the stirring plate, penetrate through both sides of the stirring plate, and are connected to the triangular plate through a connecting component.

[0057] In a second aspect, a method for using a mixing device for preparing graphene synthetic leather includes:

[0058] Connect the circulating pipeline for transporting heat-conducting oil to one of the L pipes, and ensure that the corresponding solenoid valve is in the closed state. Connect the cleaning liquid delivery pipeline to the other L pipe, and the corresponding solenoid valve also remains closed.

[0059] Remove the filling cap, inject graphene and solvent into the mixing tank through the end cap opening, reseal the filling cap, and ensure that the mixing tank is airtight.

[0060] Start the motor, adjust the transmission to the set speed, drive the stirring plate to rotate clockwise, and open the solenoid valve corresponding to the heat-conducting oil pipeline. Control the heat-conducting oil at 200 - 280 °C to enter the first sleeve through the L pipe, flow into the spiral pipe, C pipe, and connecting pipe through the through port to form a cycle. Keep the electric control valve open to make the heat-conducting oil continuously circulate, and evenly heat the materials in the mixing tank through the stirring plate, spiral pipe, and connecting pipe made of metal.

[0061] The flow of the heat-conducting oil pushes the turbine in the spiral pipe to rotate counterclockwise, drives the longitudinal rod, push plate, and T plate to rotate. The T plate drives the rotating sleeve to rotate counterclockwise through the T guide groove, so that the stirring plate moves in the opposite direction to the stirring plate, enhancing the shear force and reducing the agglomeration of graphene.

[0062] After mixing is completed, turn off the motor, open the disk valve at the end of the discharge pipe. The mixed liquid flows into the discharge pipe after being filtered through the through holes of the conical disk. The agglomerates and impurities are intercepted by the conical disk, and the discharged graphene dispersion liquid is collected for subsequent processes.

[0063] The above scheme of the present invention has at least the following beneficial effects:

[0064] Through the collaborative design of the soaking part and the stirring plate, the dynamic uniform heating is realized by using the heat-conducting oil circulation system to penetrate the stirring structure, the solvent viscosity is precisely controlled, and combined with the bidirectional shear force formed by the reverse stirring part, the agglomeration phenomenon of graphene is significantly reduced, and the dispersion efficiency and the uniformity of the finished product are improved. At the same time, the cleaning part is self-cleaned by fluid drive, ensuring no residue in the equipment and reducing the maintenance cost. Description of the Drawings

[0065] Figure 1 It is an overall three-dimensional view of the mixing device for preparing graphene synthetic leather provided by the embodiment of the present invention;

[0066] Figure 2 It is a three-dimensional view of the combination of the soaking part, the reverse stirring part and the cleaning part provided by the embodiment of the present invention;

[0067] Figure 3 It is a sectional plan view of the mixing device for preparing graphene synthetic leather provided by the embodiment of the present invention;

[0068] Figure 4 It is a three-dimensional exploded view of the combination of the connecting pipe, the second sleeve, the rotating sleeve, the rotating pipe and the first sleeve provided by the embodiment of the present invention;

[0069] Figure 5 It is a three-dimensional view of the combination of the longitudinal rod, the turbine, the second magnet and the nylon brush provided by the embodiment of the present invention;

[0070] Figure 6 Provided by the embodiment of the present invention Figure 3 Schematic diagram of the structure at A in

[0071] Figure 7 Provided by the embodiment of the present invention Figure 3 Schematic diagram of the structure at B in

[0072] Figure 8 Provided by the embodiment of the present invention Figure 3 Schematic diagram of the structure at C in

[0073] Figure 9 Provided by the embodiment of the present invention Figure 3 Schematic diagram of the structure at D in

[0074] Figure 10 It is a three-dimensional structure schematic diagram of the combination of the triangular plate, the second spring, the pressure rod and the nylon brush provided by the embodiment of the present invention;

[0075] Figure 11 It is a three-dimensional exploded view of the combination of the conical disc, the connecting rod, the spring, the dial rod and the semi-circular seat provided by the embodiment of the present invention;

[0076] Figure 12 It is a sectional plan view of the semi-circular seat provided by the embodiment of the present invention;

[0077] Figure 13 This is a sectional three - dimensional exploded view of the stirring plate and the rotating sleeve provided by the embodiment of the present invention.

[0078] Explanation of reference numerals:

[0079] In the figure: 1, mixing tank; 2, end cover; 3, filling cover; 4, transmission; 5, motor; 6, stirring plate; 7, connecting sleeve; 8, bracket; 9, drain pipe; 10, disc valve; 11, rotating pipe; 12, through - port; 13, first sleeve; 14, L - shaped pipe; 15, solenoid valve; 16, C - shaped pipe; 17, rotating rod; 18, cylindrical groove; 19, connecting pipe; 20, second sleeve; 21, discharge pipe; 22, electric control valve; 23, rotating sleeve; 24, stirring plate; 25, fixing plate; 26, longitudinal rod; 27, pushing plate; 28, T - shaped plate; 29, arc - shaped plate; 30, T - shaped guide groove; 31, rubber ring; 32, connecting rod; 33, supporting disc; 34, first spring; 35, arc - shaped arch disc; 36, semi - circular seat; 37, threaded ring; 38, first push rod; 39, conical disc; 40, through - hole; 41, lever; 42, sealing pad; 43, water channel; 44, conical opening; 45, rubber flap; 46, first magnet; 47, second magnet; 48, connecting plate; 49, pressing rod; 50, round head; 51, L - shaped groove; 52, triangular plate; 53, second push rod; 54, second spring; 55, storage groove; 56, brush plate; 57, nylon brush; 58, rubber ring; 59, turbine. Detailed implementation manners

[0080] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be completely conveyed to those skilled in the art.

[0081] As Figures 1 to 13 shown, an embodiment of the present invention provides a mixing device for preparing graphene synthetic leather, including: a mixing tank 1 and an end cover 2 fixed on the upper end, a motor 5 is fixed on the end cover 2, the driving end of the motor 5 is connected to a transmission 4, a stirring plate 6 is rotatably arranged in the mixing tank 1, a filling cover 3 is penetrated and arranged on the end cover 2, and further includes:

[0082] A heat - equalizing part, which penetrates through the stirring plate 6 and the end cover 2 and is connected to the output end of the transmission 4 to convey heat - conducting oil to uniformly heat the preparation materials in cooperation with the stirring plate 6;

[0083] A reverse - stirring part, which is rotatably and sealingly connected to the heat - equalizing part and is located inside the stirring plate 6 to reversely stir the preparation materials;

[0084] The cleaning part is arranged on the soaking part and the anti-stirring part and is located inside the stirring plate 6 to be driven by the anti-stirring part and cooperate with the soaking part to rinse and clean the mixing tank 1 and the stirring plate 6;

[0085] The soaking part includes a filling and discharging part and a heat conducting part. The filling and discharging part penetrates through the filling cover 3 and the mixing tank 1, and the heat conducting part is connected to the output end of the transmission 4 and is rotationally and sealingly connected to the filling and discharging part;

[0086] The anti-stirring part includes a driving and connecting part and a disturbing part. The driving and connecting part is arranged inside the heat conducting part, and the disturbing part is rotationally and sealingly connected to the heat conducting part;

[0087] The cleaning part includes a spraying and cleaning part and a rotary brush part. The spraying and cleaning part penetrates through the disturbing part and the filling and discharging part, and the rotary brush part is symmetrically arranged through the stirring plate 6 and is magnetically connected to the driving and connecting part.

[0088] Specifically, three connecting sleeves 7 are arranged through the inside of the stirring plate 6, and the connecting sleeves 7 are located directly below the output end of the transmission 4. A bracket 8 is fixed below the mixing tank 1, and a discharge pipe 9 penetrates through the lower end of the mixing tank 1. The output end of the discharge pipe 9 is fixedly connected with a disc valve 10 through bolts.

[0089] In the actual application process of this embodiment: The staff can remove the filling cover 3, thereby opening the opening on the end cover 2, injecting graphene and solvent into the mixing tank 1 from this opening, then starting the motor 5, and adjusting the transmission speed of the transmission 4, so that the motor 5 drives the transmission 4 to operate, and the transmission 4 uses its output end to drive the rotating pipe 11 to rotate. At the same time, the rotating pipe 11 will drive the stirring plate 6 to rotate together through the connecting sleeve 7, so that the stirring plate 6 uses the rotating power to mix and stir graphene and solvent in the mixing tank 1.

[0090] As a preferred embodiment of the present invention, the filling and discharging part includes:

[0091] The first sleeve 13 is arranged at the output end of the transmission 4;

[0092] There are two L-shaped pipes 14, which are symmetrically arranged through and fixed on the end cover 2 and are communicated with the first sleeve 13;

[0093] The discharge pipe 21 penetrates through the lower end of the mixing tank 1 and is fixedly connected;

[0094] The second sleeve 20 is connected to the other end of the discharge pipe 21.

[0095] Specifically, one end of the L-shaped pipe 14 close to the first sleeve 13 is connected with a solenoid valve 15, which is communicated with the first sleeve 13 through the solenoid valve 15. The first sleeve 13 is rotationally and sealingly connected with the coiled pipe 11 through a bearing and a shaft seal, so that the coiled pipe 11 can rotate inside the first sleeve 13 without liquid leakage. The L-shaped pipe 14 can provide support for the solenoid valve 15, so that the solenoid valve 15 can provide support for the first sleeve 13. The mixing tank 1 can provide a stable support for the discharge pipe 21. One of the L-shaped pipes 14 can provide a flow channel for the heat-conducting oil, and the other L-shaped pipe 14 can provide a flow channel for the cleaning liquid, so that the cleaning liquid or the heat-conducting oil can enter and fill the inside of the first sleeve 13. The first sleeve 13 can then provide a channel for the heat-conducting oil or the cleaning liquid to enter the coiled pipe 11.

[0096] The heat-conducting member includes:

[0097] The coiled pipe 11, fixed at the output end of the transmission 4 and passing through the first sleeve 13, is rotationally and sealingly connected with the first sleeve 13 through a shaft seal and a bearing;

[0098] The through port 12, opened through both sides of the coiled pipe 11 and communicated with the first sleeve 13;

[0099] The C-shaped pipe 16, symmetrically arranged through the stirring plate 6 and the coiled pipe 11, and one end extending to the inside of the coiled pipe 11;

[0100] The rotating connection part, arranged below the coiled pipe 11 and rotationally and sealingly connected with the second sleeve 20.

[0101] Specifically, the coiled pipe 11 can provide a space for opening the through port 12. The through port 12 can provide a channel for the heat-conducting oil or the cleaning liquid in the first sleeve 13 to enter the coiled pipe 11. The coiled pipe 11 can provide a flow channel and a guiding function for the heat-conducting oil or the cleaning liquid, so that the heat-conducting oil or the cleaning liquid can enter the inside of the rotating sleeve 23. As the heat-conducting oil or the cleaning liquid accumulates at the upper end of the rotating rod 17, inside the rotating sleeve 23 and the coiled pipe 11, the heat-conducting oil or the cleaning liquid will submerge and flow into the inside of the C-shaped pipe 16, and flow out along the C-shaped pipe 16 into the inside of the cylindrical groove 18.

[0102] The rotating connection part includes:

[0103] The rotating rod 17, fixedly passing through the stirring plate 6 and located below the coiled pipe 11;

[0104] The rotating sleeves 23, there are two of them, respectively rotationally and sealingly connected at both ends of the rotating rod 17 through a bearing and a shaft seal, and one of them is rotationally and sealingly connected with the lower end of the coiled pipe 11 through a bearing and a shaft seal;

[0105] The cylindrical groove 18, opened at the lower end of the rotating rod 17 and communicated with the other end of the C-shaped pipe 16;

[0106] The connecting pipe 19 has one end rotatably and sealingly connected to the lower end of another swivel sleeve 23 through a bearing and a shaft seal, and the other end rotatably and sealingly connected to the second sleeve 20.

[0107] Specifically, two of the connecting sleeves 7 are fixedly sleeved on the outer side of the rotating rod 17 and are respectively penetrated by both ends of the C pipe 16. Another connecting sleeve 7 is fixedly sleeved on the outer side of the connecting pipe 19. The rotating rod 17 can provide a space for the cylindrical groove 18 to be formed, and can provide support for the other end of the C pipe 16. Moreover, the rotating rod 17 can provide rotational support for the swivel sleeve 23, enabling the swivel sleeve 23 to rotate by an external force under the support of the rotating rod 17. Another swivel sleeve 23 can provide rotational support for the connecting pipe 19 under the support of the rotating rod 17. The heat-conducting oil or cleaning liquid entering the cylindrical groove 18 will then pass through the swivel sleeve 23 and enter the inner side of the connecting pipe 19, and penetrate through the connecting pipe 19 and be discharged to the inner side of the second sleeve 20. Subsequently, it will pass through the second sleeve 20 and enter the discharge pipe 21. The lower end of the discharge pipe 21 is connected with an electric control valve 22. When the electric control valve 22 is in the normally open state, when the electric control valve 22 is opened, the heat-conducting oil or cleaning liquid in the discharge pipe 21 can be discharged.

[0108] In the actual application process of this embodiment, the solenoid valve 15 is in a normally closed state. The staff needs to use fixing components to connect the pipeline for transporting heat-conducting oil to one of the L-shaped pipes 14, and at the same time use fixing components to connect the circulating pipeline for transporting heat-conducting oil to the discharge end of the electric control valve 22, and connect the pipeline for transporting cleaning liquid to the other L-shaped pipe 14. After injecting graphene and solvent into the mixing tank 1, the staff can control the opening of the solenoid valve 15 connected to one of the L-shaped pipes 14 as needed, so that the heat-conducting oil at a temperature of 200-280 °C can enter the inner side of the L-shaped pipe 14, pass through the L-shaped pipe 14 and the solenoid valve 15 and flow into the inner side of the first sleeve 13, and fill the first sleeve 13. At the same time, the heat-conducting oil will pass through the through-hole 12 and flow into the inner side of the spiral pipe 11. Subsequently, the heat-conducting oil will pass through the spiral pipe 11 and flow into the inner side of the rotating sleeve 23. The gasket 42 will fit with the inner wall of the rotating sleeve 23 under the support of the arc plate 29 by virtue of the properties of its rubber material, thereby covering and closing the channel between the rotating sleeve 23 and the water channel 43. Furthermore, the inner sides of the rotating sleeve 23 and the spiral pipe 11 can be filled with heat-conducting oil. At the same time, the heat-conducting oil will flow into the inner side of the C-shaped pipe 16 from the spiral pipe 11, filling the C-shaped pipe 16 with heat-conducting oil. At the same time, the heat-conducting oil will pass through the C-shaped pipe 16 and be discharged from the lower end into the cylindrical groove 18 under the action of the conveying pressure, and pass through the cylindrical groove 18 and be discharged into the inner side of another rotating sleeve 23, and then pass through this rotating sleeve 23 and flow into the connecting pipe 19, and then pass through the connecting pipe 19 and flow into the inner side of the second sleeve 20, and finally pass through the second sleeve 20 and enter the discharge pipe 21. At the same time, the staff needs to control the opening of the electric control valve 22 to open the channel of the discharge pipe 21, so that the heat-conducting oil can pass through the discharge pipe 21 and the electric control valve 22 and be discharged into the connected circulating pipeline. At the same time, it is necessary to keep the motor 5 started, so that the spiral pipe 11 can cooperate with the connecting sleeve 7 to drive the stirring plate 6, the rotating rod 17 and the connecting pipe 19 to rotate clockwise together, and heat the stirring plate 6, the connecting pipe 19 and the spiral pipe 11 made of metal by the heat-conducting oil flowing in the C-shaped pipe 16, so that the stirring plate 6, the connecting pipe 19 and the spiral pipe 11 absorb the heat of the heat-conducting oil and conduct heat in multiple regions during the rotating stirring and mixing process, heating and raising the temperature in the graphene and the solvent, thereby improving the heating efficiency and uniformity, reducing the viscosity of the solvent so that the graphene is more easily dispersed by the shear force, and reducing the agglomeration phenomenon.

[0109] In another preferred embodiment of the present invention, the disturbing member includes:

[0110] Stirring plates 24, symmetrically fixed on the outer sides of the two rotating sleeves 23;

[0111] Fixed plates 25, fixed on the inner sides of the stirring plates 24;

[0112] Turbines 59, rotatably arranged inside the spiral pipes 11 and connected to the rotating sleeves 23.

[0113] Specifically, the rotating sleeve 23 can provide stable support for the stirring plate 24, and the rotating sleeve 23 can rotate around the rotating pipe 11 and the rotating rod 17 under the support of the bearing and the shaft seal by using an external force. The stirring plate 24 can provide stable support for the fixed plate 25, and the fixed plate 25 can make the stirring plate 24 more firm. The rotating pipe 11 can provide a rotating space for the turbine 59 and can be pushed to rotate counterclockwise by the heat-conducting oil or cleaning liquid flowing in the rotating pipe 11.

[0114] The driving and connecting member includes:

[0115] A longitudinal rod 26, movably penetrating through the rotating pipe 11, the rotating rod 17 and the connecting pipe 19, and its upper end is connected to the turbine 59;

[0116] There are two pushing plates 27, which are fixed on the outer side of the longitudinal rod 26 and are respectively located inside the two rotating sleeves 23;

[0117] T-shaped plates 28 are fixed at both ends of the pushing plate 27 and are connected with the rotating sleeve 23 for lifting and guiding.

[0118] Specifically, T-shaped guide grooves 30 are symmetrically formed on the inner wall of the rotating sleeve 23, and the T-shaped guide grooves 30 are located outside the T-shaped plates 28, which can provide a guiding function for the lifting movement of the T-shaped plates 28 and enable the T-shaped plates 28 to push the rotating sleeve 23 to rotate. The first spring 34 can use its own elastic force to provide support for the connecting rod 32, the longitudinal rod 26, the pushing plate 27, the T-shaped plates 28, the arc-shaped plate 29 and the turbine 59 under the support of the second sleeve 20. And the gasket 42 will support the arc-shaped plate 29 by using the frictional force with the inner wall of the rotating sleeve 23, and can provide support for the first magnet 46 through the longitudinal rod 26. The turbine 59 can drive the longitudinal rod 26 and the pushing plate 27 to rotate counterclockwise together by using the rotating power, and can drive the T-shaped plates 28 to rotate together through the pushing plate 27, so that the T-shaped plates 28 can push the rotating sleeve 23 to rotate counterclockwise under the support of the rotating pipe 11 and the rotating rod 17 inside the T-shaped guide grooves 30.

[0119] In the actual application process of this embodiment, when the heat-conducting oil or cleaning liquid flows in the rotating pipe 11, the turbine 59 will be pushed to rotate counterclockwise by the flow of the heat-conducting oil and the cleaning liquid, so that the turbine 59 can drive the longitudinal rod 26 and the pushing plate 27 to rotate together, so that the pushing plate 27 can drive the T-shaped plates 28 to rotate, and the T-shaped plates 28 can use the rotating power to push the rotating sleeve 23 to rotate counterclockwise together around the rotating pipe 11 and the rotating rod 17 under the support of the bearing and the shaft seal. Thus, the rotating sleeve 23 can drive the stirring plate 24 to rotate counterclockwise together, and further the stirring plate 24 can drive the fixed plate 25 to rotate in the mixing tank 1 in the opposite direction of the stirring plate 6 to stir and mix the graphene and the solvent, generate shear force, improve the mixing effect and efficiency of the graphene and the solvent, and the rotation driven by the force of the liquid flow can save power consumption, be energy-saving and environment-friendly, and reduce production costs.

[0120] As a preferred embodiment of the present invention, the cleaning member includes:

[0121] Arc plates 29, symmetrically fixed on the push plate 27;

[0122] Water channels 43, opened inside the stirring plate 24, passing through one end of the stirring plate 24, and communicating with the rotating sleeve 23;

[0123] Sealing gaskets 42, fixed on the outer side of the arc plates 29, fitting against the inner wall of the rotating sleeve 23, corresponding to the position of the water channels 43;

[0124] Tapered openings 44, passing through the stirring plate 24 and communicating with the water channels 43;

[0125] Rubber flaps 45, symmetrically arranged inside the tapered openings 44, and the outer sides are fixedly connected to the stirring plate 24;

[0126] Collecting and filtering parts, arranged at the lower end of the vertical rod 26, and hermetically passing through the second sleeve 20.

[0127] Specifically, the push plate 27 can provide support for the arc plates 29, the arc plates 29 can provide stable support for the sealing gaskets 42. The sealing gaskets 42 are made of rubber and can play a role in sealing the rotating sleeve 23. The stirring plate 24 can provide a space for opening the water channels 43 and the tapered openings 44. The water channels 43 can provide a flow channel for the cleaning liquid, and the tapered openings 44 can provide a spraying channel for the cleaning liquid by using the tapered structure to cooperate with the water pressure. Moreover, the stirring plate 24 can provide stable support for the rubber flaps 45. The two rubber flaps 45 form a group, and each group of rubber flaps 45 fits together to play a role in sealing the tapered openings 44.

[0128] The collecting and filtering parts include:

[0129] Link rods 32, fixed at the lower end of the vertical rod 26, movably passing through the second sleeve 20, and elastically connected to the second sleeve 20;

[0130] Rubber rings 31, passing through the lower end of the second sleeve 20, fixedly connected, and wrapping around the outer side of the link rods 32;

[0131] Arc arch plates 35, fixed at the lower end of the link rods 32;

[0132] Semicircular seats 36, rotatably sleeved on the outer sides of the arc arch plates 35 and the link rods 32;

[0133] Tapered disks 39, threadedly connected to the lower end of the semicircular seats 36, and internally provided with a plurality of through holes 40;

[0134] Pushing rods 41, one end welded to the outer side of the link rods 32 and close to the inner wall of the tapered disks 39.

[0135] Specifically, a support disc 33 is fixed to the outer side of the connecting rod 32. A first spring 34 is sleeved on the outer side of the connecting rod 32. One end of the first spring 34 is fixedly connected to the support disc 33 through a connecting component, and the other end is fixedly connected to the second sleeve 20 through a connecting component.

[0136] The rotary brush member includes:

[0137] A first magnet 46, which is fixed to the outer side of the longitudinal rod 26 through a connecting component and is located inside the connecting pipe 19;

[0138] A second magnet 47, which is movably sleeved on the outer side of the connecting pipe 19 and is magnetically connected to the first magnet 46;

[0139] A pressure rod 49, one end of which is fixedly connected to the second magnet 47 through a connecting component, and the other end thereof penetrates through the stirring plate 6;

[0140] A round head 50, which is fixed to the other end of the pressure rod 49 and is located inside the stirring plate 6;

[0141] A triangular plate 52, which is translationally arranged inside the stirring plate 6, is located below the round head 50, contacts the round head 50, and is elastically connected to the stirring plate 6;

[0142] There are two nylon brushes 57, which are symmetrically arranged inside the stirring plate 6, penetrate through both sides of the stirring plate 6, and are connected to the triangular plate 52 through a connecting component.

[0143] Specifically, a threaded ring 37 is welded to the lower end of the round head 50. The threaded ring 37 is threadedly connected through the lower end of the tapered disc 39. A first push rod 38 is fixed to the lower end of the round head 50, and the first push rod 38 is located inside the threaded ring 37. A connecting plate 48 is fixedly connected to the outer side of the first magnet 46 through a connecting component, and the lower end of the connecting plate 48 is fixedly connected to the upper end of the pressure rod 49. An L-shaped groove 51 is formed inside the stirring plate 6. A second push rod 53 is fixed to the outer side of the triangular plate 52, and the second push rod 53 penetrates through the L-shaped groove 51. Storage grooves 55 are formed on both sides of the stirring plate 6, and the storage grooves 55 communicate with the L-shaped groove 51. A brush plate 56 is arranged inside the storage groove 55. The brush plate 56 is fixedly connected to one side of the nylon brush 57 and is fixedly connected to the second push rod 53. A rubber ring 58 is fixedly penetrated through the stirring plate 6, and the rubber ring 58 wraps around the outer side of the pressure rod 49 and fits tightly.

[0144] In the actual application process of this embodiment, after the graphene and the solvent stirring plate 24 are mixed, the staff needs to control the opening of the disk valve 10, so that the graphene dispersion liquid in the mixing tank 1 flows to the inner side of the conical disk 39, passes through the through hole 40 to discharge to the inner side of the discharge pipe 9 through the conical disk 39, and discharges along the discharge pipe 9 into the disk valve 10, and finally passes through the disk valve 10 to be discharged to the outside for the staff to collect and use for the next step of preparing graphene synthetic leather. During the process of the graphene dispersion liquid passing through the through hole 40, the conical disk 39 will intercept the larger aggregates and impurities in the graphene dispersion liquid, and under the weight action of the larger aggregates, impurities and the graphene dispersion liquid adhered thereto, the conical disk 39 will be pushed downward, so that the conical disk 39 pulls the connecting rod 32 downward through the semi-circular seat 36 and the arc-shaped arch plate 35 by gravity, so that the connecting rod 32 overcomes the friction force with the rubber ring 31, and the connecting rod 32 can move downward to drive the supporting disk 33 to move downward together. The lower end of the first spring 34 is pulled downward by the supporting disk 33, so that the first spring 34 is stretched and deformed under the support of the second sleeve 20 by the external force. At the same time, the staff needs to control the closing of the solenoid valve 15 for conveying the heat-conducting oil to prevent the heat-conducting oil from continuing to enter the first sleeve 13, and open the electric control valve 22 to fully discharge the heat-conducting oil. Then, control the opening of another solenoid valve 15, and connect the pipeline for conveying the cleaning liquid to another L-shaped pipe 14, so that the cleaning liquid can pass through the other L-shaped pipe 14 and the solenoid valve 15 to enter the inner side of the first sleeve 13, fill the first sleeve 13 and enter the spiral pipe 11, and flow through the C-shaped pipe 16, the rotating rod 17, the connecting pipe 19, the second sleeve 20 and the discharge pipe 21, and finally discharge from the electric control valve 22, so that the cleaning liquid can push the turbine 59 to rotate counterclockwise during the flowing process, and the rotating turbine 59 drives the connecting rod 32 to rotate together overcoming the friction force with the rubber ring 31 through the vertical rod 26, so that the connecting rod 32 drives the arc-shaped arch plate 35 to rotate together inside the semi-circular seat 36. At the same time, the connecting rod 32 will drive the dial rod 41 to rotate together, so that the dial rod 41 uses the rotating power to push the impurities and aggregates in the conical disk 39, prevent the through hole 40 from being blocked, and wash away the residual heat-conducting oil.

[0145] When the connecting rod 32 moves downward, it drives the vertical rod 26 to move downward under the action of gravity, so that the vertical rod 26 can drive the push plate 27 and the T-plate 28 to move downward along the T-guide groove 30, so that the push plate 27 can drive the sealing gasket 42 to move downward together through the arc plate 29, so that the sealing gasket 42 moves downward and away from the corresponding position at one end of the water channel 43, thereby opening the channel between the water channel 43 and the swivel sleeve 23, and controlling the electric control valve 22 to close as needed to prevent the cleaning liquid from passing through the electric control valve 22 and discharging. Subsequently, the cleaning liquid will be stored inside the connecting pipe 19, the rotating rod 17, the C-pipe 16, the rotating pipe 11 and the swivel sleeve 23 under the sealing of each shaft seal, and pass through the swivel sleeve 23 and flow into the water channel 43 from the channel opened by the sealing gasket 42, so that the cleaning liquid can fill the water channel 43 under the sealing of the rubber flap 45. As the amount of the cleaning liquid entering the L-pipe 14 gradually increases, the water pressure is gradually created, so that the cleaning liquid can push the rubber flap 45 to deform in the conical opening 44 under the action of the water pressure, thereby opening the channel for the cleaning liquid to enter the conical opening 44 from the water channel 43. Then, the cleaning liquid in the water channel 43 can be sprayed onto the inner wall of the mixing tank 1 and the outer wall of the stirring plate 6 through the conical opening 44 by using the water pressure. When the vertical rod 26 is pulled downward, it drives the first magnet 46 to move downward inside the connecting pipe 19, so that the first magnet 46 can drive the second magnet 47 attracted by opposite sex to move downward together by using magnetic force during the movement, so that the second magnet 47 can drive the pressing rod 49 and the round head 50 to move toward the direction close to the triangular plate 52 by overcoming the friction force with the rubber ring 58 through the connecting plate 48. When the round head 50 moves downward, it uses the gravity of the agglomerates and impurities collected and filtered in the conical disk 39 and the adhered graphene dispersant to push the triangular plate 52 downward, so that the round head 50 can cooperate with its own arc and the inclination angle of the triangular plate 52 under the action of external force to push the triangular plate 52 to translate along the L-groove 51 away from the vertical rod 26. Then, the triangular plate 52 can squeeze the second spring 54 to contract and store energy during the movement. At the same time, the triangular plate 52 will push the second push rod 53 to move together along the L-groove 51, so that the second push rod 53 pushes the brush plate 56 and the nylon brush 57 to translate outward from the storage groove 55, so that the nylon brush 57 can be attached to the inner wall of the mixing tank 1. At the same time, the staff needs to keep the motor 5 started to drive the stirring plate 6 to rotate clockwise, so that the stirring plate 6 can drive the pressing rod 49, the connecting plate 48, the second magnet 47, the triangular plate 52, the second push rod 53, the second spring 54, the brush plate 56 and the nylon brush 57 to rotate clockwise together. Then, the nylon brush 57 can use the cleaning liquid sprayed from the water channel 43 and the conical opening 44 to brush and clean the inner wall of the mixing tank 1 during the rotation. After the cleaning is completed, the solenoid valve 15 connected to the other L-pipe 14 is closed and the electric control valve 22 is opened to discharge the cleaning liquid.

[0146] When the gravity generated by the agglomerates and impurities in the conical disk 39 is not enough to push the triangular plate 52, the staff can remove the disk valve 10 and hang the counterweight on the outside of the first push rod 38 by using a hook to provide sufficient gravity.

[0147] Subsequently, the staff needs to remove the bolts connecting the disc valve 10 and the discharge pipe 9, so as to remove the disc valve 10. Then, pinch the lever 41 and the first push rod 38 by hand from the lower end of the discharge pipe 9, and push the semi-circular seat 36 through the first push rod 38, so that the semi-circular seat 36 drives the threaded ring 37 to rotate together, enabling the threaded ring 37 to be separated from the tapered disc 39 by using the thread, so that the tapered disc 39 can be removed, and the tapered disc 39 is taken out from the discharge pipe 9 to pour out the filtered and intercepted agglomerates and impurities. At the same time, the gravity applied to the connecting rod 32 will disappear, and the stretched first spring 34 and the compressed and contracted second spring 54 will reset by using the rebounding force, and then push the vertical rod 26 and the triangular plate 52 to reset.

[0148] As a preferred embodiment of the present invention, a method for using a mixing device for preparing graphene synthetic leather includes:

[0149] Connect the circulating pipeline for transporting heat-conducting oil to one of the L-shaped pipes 14, and ensure that the corresponding solenoid valve 15 is in the closed state. Connect the cleaning liquid delivery pipeline to the other L-shaped pipe 14, and the corresponding solenoid valve 15 also remains closed;

[0150] Remove the filling cap 3, inject graphene and solvent into the mixing tank 1 through the opening of the end cap 2, reseal the filling cap 3, and ensure that the mixing tank 1 is airtight;

[0151] Start the motor 5, adjust the transmission 4 to the set speed, drive the stirring plate 6 to rotate clockwise, and open the solenoid valve 15 corresponding to the heat-conducting oil pipeline. Control the heat-conducting oil at 200-280 °C to enter the first sleeve 13 through the L-shaped pipe 14, flow into the spiral pipe 11, the C-shaped pipe 16 and the connecting pipe 19 through the through port 12 to form a cycle, keep the electric control valve 22 open, so that the heat-conducting oil circulates continuously, and uniformly heat the materials in the mixing tank 1 through the stirring plate 6, the spiral pipe 11 and the connecting pipe 19 made of metal;

[0152] The flow of the heat-conducting oil pushes the turbine 59 in the spiral pipe 11 to rotate counterclockwise, drives the vertical rod 26, the push plate 27 and the T-shaped plate 28 to rotate, and the T-shaped plate 28 drives the rotating sleeve 23 to rotate counterclockwise through the T-shaped guide groove 30, so that the stirring plate 24 moves in the opposite direction to the stirring plate 6, enhancing the shearing force and reducing the agglomeration of graphene;

[0153] After mixing is completed, turn off the motor 5, open the disc valve 10 at the end of the discharge pipe 9, and the mixed liquid flows into the discharge pipe 9 after being filtered through the through hole 40 of the tapered disc 39. The agglomerates and impurities are intercepted by the tapered disc 39, and the discharged graphene dispersion liquid is collected for subsequent processes.

[0154] Working principle: The motor 5 drives the stirring plate 6 and the spiral pipe 11 of the heat equalizing part to rotate synchronously clockwise through the transmission 4, and the stirring plate 6 shears and stirs the graphene and the solvent in the mixing tank 1.

[0155] External high-temperature heat-conducting oil (200 - 280 °C) is injected into the spiral tube 11 through the L-tube 14 and the first sleeve 13, enters the circulation channel composed of the C-tube 16, the rotating rod 17, and the connecting tube 19 through the through-port 12, and finally returns to the external circulation system through the discharge pipe 21. The stirring plate 6, the spiral tube 11, and the connecting tube 19 made of metal absorb the heat of the heat-conducting oil, and uniformly heat the material in multiple regions through rotational contact, reducing the solvent viscosity and reducing graphene agglomeration. The heat-conducting oil forms a closed-loop circulation through the spiral tube 11, the C-tube 16, and the connecting tube 19. The metal stirring components directly contact the material, realizing synchronous heating in multiple regions, improving the temperature uniformity, effectively reducing the solvent viscosity, and reducing graphene agglomeration.

[0156] The flow of the heat-conducting oil or the cleaning liquid drives the turbine 59 to rotate counterclockwise, driving the vertical rod 26, the push plate 27, and the T-plate 28 to push the rotating sleeve 23 to rotate reversely. The stirring plate 24 on the outer side of the rotating sleeve 23 and the fixed plate 25 form a reverse shearing force with the stirring plate 6 in the counterclockwise direction, strengthening the dispersion effect. The forward rotation of the stirring plate 6 and the reverse rotation of the stirring plate 24 form a two-way shearing force, improving the mixing efficiency and enhancing the uniformity of graphene dispersion. The reverse-stirring part turbine 59 is driven by fluid flow, eliminating the need for an additional motor 5 and reducing energy consumption.

[0157] After mixing is completed, the input of the cleaning liquid is switched. The cleaning liquid accumulates pressure in the inner water channel 43 of the rotating sleeve 23, pushes open the rubber flap 45, and sprays out from the tapered opening 44 to wash the tank wall and the surface of the stirring plate 6. The downward movement of the vertical rod 26 drives the sealing gasket 42 to disengage from the water channel 43, opening the flow path of the cleaning liquid. The downward movement of the vertical rod 26 drives the second magnet 47 through the first magnet 46 to drive the pressure rod 49 to press down the round head 50, pushing the triangular plate 52 to move outward, so that the nylon brush 57 extends out of the storage groove 55 and fits against the tank wall. When the stirring plate 6 rotates, the nylon brush 57 automatically brushes the residues on the inner wall in cooperation with the spraying liquid. The synergistic effect of spraying + nylon brush 57 realizes self-cleaning of the tank body, shortening the cleaning time and reducing the risk of cross-contamination.

[0158] During discharging, the tapered disk 39 intercepts large particles through the through-hole 40. The gravity of the impurities presses down the tapered disk 39, driving the connecting rod 32 to stretch the first spring 34. The rotating lever 41 rotates to prevent the through-hole 40 from being blocked. The detachable design of the tapered disk 39 facilitates the cleaning of the intercepted objects. The gravity of the impurities triggers the downward movement of the vertical rod 26, synchronously starting the spraying and brushing actions; the counterweight hook can assist the operation when the gravity is insufficient. The tapered disk 39 dynamically filters and intercepts impurities, reducing the blockage rate of the through-hole 40. The detachable design facilitates replacement or maintenance, adapting to different material particle size requirements. The multi-layer shaft seal plus the rubber ring 31 ensures zero leakage of the high-temperature oil circuit.

[0159] The above is the preferred implementation mode of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A mixing device for preparing graphene synthetic leather, comprising: A mixing tank and an end cover fixed to the upper end. A motor is fixed to the end cover. The driving end of the motor is connected to a transmission. A stirring plate is rotatably arranged in the mixing tank. A filling cover is arranged through the end cover. It is characterized in that it further includes: A soaking part, which penetrates through the stirring plate and the end cover and is connected to the output end of the transmission to convey heat-conducting oil to cooperate with the stirring plate to uniformly heat and prepare materials; A reverse stirring part, which is rotationally and hermetically connected to the soaking part and is located inside the stirring plate to reversely stir and prepare materials; A cleaning part, which is arranged on the soaking part and the reverse stirring part and is located inside the stirring plate to be driven by the reverse stirring part and cooperate with the soaking part to flush and clean the mixing tank and the stirring plate; The soaking part includes a filling and discharging part and a heat conduction part. The filling and discharging part penetrates through the filling cover and the mixing tank. The heat conduction part is connected to the output end of the transmission and is rotationally and hermetically connected to the filling and discharging part; The reverse stirring part includes a driving and connecting part and a disturbing part. The driving and connecting part is arranged inside the heat conduction part. The disturbing part is rotationally and hermetically connected to the heat conduction part; The cleaning part includes a spraying and cleaning part and a rotating brush part. The spraying and cleaning part penetrates through the disturbing part and the filling and discharging part. The rotating brush part is symmetrically arranged through the stirring plate and is magnetically connected to the driving and connecting part; The driving and connecting part includes: Two pushing plates, which are fixed to the outside of the longitudinal rod; The filling and discharging part includes: A first sleeve, which is arranged at the output end of the transmission; Two L-shaped pipes, which are symmetrically arranged through the end cover and fixed, and are communicated with the first sleeve; A discharge pipe, which penetrates through the lower end of the mixing tank and is fixedly connected; A second sleeve, which is connected to the other end of the discharge pipe; The heat conduction part includes: A rotating pipe, which is fixed to the output end of the transmission and penetrates through the first sleeve, and is rotationally and hermetically connected to the first sleeve through a shaft seal and a bearing; A through port, which is opened on both sides of the rotating pipe and is communicated with the first sleeve; A C-shaped pipe, which is symmetrically arranged through the stirring plate and the rotating pipe, and one end extends to the inside of the rotating pipe; A rotating connection part, which is arranged below the rotating pipe and is rotationally and hermetically connected to the second sleeve; The rotating connection part includes: Two rotating sleeves, which are respectively rotationally and hermetically connected to both ends of the rotating rod through bearings and shaft seals, The disturbing part includes: Stirring plates, which are symmetrically fixed to the outside of the two rotating sleeves; A fixing plate, which is fixed to the inside of the stirring plates; A turbine, which is rotatably arranged inside the rotating pipe and is connected to the rotating sleeve The spraying and cleaning part includes: Arc plates, which are symmetrically fixed to the pushing plates; A water channel, which is opened inside the stirring plate, penetrates through one end of the stirring plate, and is communicated with the rotating sleeve; A sealing gasket, which is fixed to the outside of the arc plate and fits with the inner wall of the rotating sleeve, corresponding to the position of the water channel; A tapered opening, which is opened through the stirring plate and is communicated with the water channel; Rubber flaps, which are symmetrically arranged inside the tapered opening, and the outside is fixedly connected to the stirring plate; A collecting and filtering part, which is arranged at the lower end of the longitudinal rod and hermetically penetrates through the second sleeve.

2. The mixing device for preparing graphene synthetic leather according to claim 1, characterized in that, The rotating connection part further includes: A rotating rod, which is fixedly arranged through the stirring plate and is located below the rotating pipe; One of the rotating sleeves is rotationally and hermetically connected to the lower end of the rotating pipe through a bearing and a shaft seal; A cylindrical groove, which is opened at the lower end of the rotating rod and is communicated with the other end of the C-shaped pipe; A connecting pipe, one end of which is rotationally and hermetically connected to the lower end of the other rotating sleeve through a bearing and a shaft seal, and the other end is rotationally and hermetically connected to the second sleeve.

3. The mixing device for preparing graphene synthetic leather according to claim 2, characterized in that, The driving and connecting part includes: The longitudinal rod is movably arranged through the rotating pipe, the rotating rod and the connecting pipe, and its upper end is connected to the turbine. The two push plates are respectively located inside the two rotating sleeves. The T-shaped plate is fixed at both ends of the push plate and is connected to the rotating sleeve for lifting and guiding.

4. The mixing device for preparing graphene synthetic leather according to claim 3, characterized in that, The oil suction part includes: The connecting rod is fixed at the lower end of the longitudinal rod, movably penetrates through the second sleeve, and is elastically connected to the second sleeve. The rubber ring penetrates through the lower end of the second sleeve, is fixedly connected, and wraps around the outside of the connecting rod. The arc-shaped arch plate is fixed at the lower end of the connecting rod. The semi-circular seat is rotatably sleeved outside the arc-shaped arch plate and the connecting rod. The conical plate is threadedly connected to the lower end of the semi-circular seat, and a plurality of through holes are formed through the inside thereof. One end of the shifting rod is welded to the outside of the connecting rod and is close to the inner wall of the conical plate.

5. The mixing device for preparing graphene synthetic leather according to claim 4, wherein, The rotating brush part includes: The first magnet is fixed to the outside of the longitudinal rod through a connecting component and is located inside the connecting pipe. The second magnet is movably sleeved outside the connecting pipe and is magnetically connected to the first magnet. One end of the pressing rod is fixedly connected to the second magnet through a connecting component, and the other end penetrates through the stirring plate. The round head is fixed to the other end of the pressing rod and is located inside the stirring plate. The triangular plate is arranged in the stirring plate in a translational manner, is located below the round head, contacts the round head, and is elastically connected to the stirring plate. There are two nylon brushes, which are symmetrically arranged in the stirring plate, penetrate through both sides of the stirring plate, and are connected to the triangular plate through a connecting component.

6. A method for using a mixing device for preparing graphene synthetic leather according to any one of claims 1 to 5, characterized in that, It includes: Connect the circulating pipeline for transporting heat-conducting oil to one of the L-shaped pipes, and ensure that the corresponding solenoid valve is in the closed state. Connect the cleaning liquid transportation pipeline to the other L-shaped pipe, and the corresponding solenoid valve also remains closed. Remove the filling cap, inject graphene and solvent into the mixing tank through the end cover opening, reseal the filling cap, and ensure that the mixing tank is airtight. Start the motor, adjust the transmission to the set speed, drive the stirring plate to rotate clockwise, and open the solenoid valve corresponding to the heat-conducting oil pipeline. Control the heat-conducting oil at 200 - 280 °C to enter the first sleeve through the L-shaped pipe, flow into the rotating pipe, the C-shaped pipe and the connecting pipe through the through port to form a cycle, keep the electric control valve open, make the heat-conducting oil continuously circulate, and uniformly heat the materials in the mixing tank through the stirring plate, the rotating pipe and the connecting pipe made of metal. The flow of the heat-conducting oil pushes the turbine in the rotating pipe to rotate counterclockwise, drives the longitudinal rod, the push plate and the T-shaped plate to rotate, and the T-shaped plate drives the rotating sleeve to rotate counterclockwise through the T-shaped guide groove, so that the stirring plate moves in the opposite direction to the stirring plate, enhancing the shear force and reducing the agglomeration of graphene. After mixing is completed, turn off the motor, open the disc valve at the end of the discharge pipe, and the mixed liquid flows into the discharge pipe after being filtered through the through holes of the conical plate. The agglomerates and impurities are intercepted by the conical plate, and the discharged graphene dispersion liquid is collected for subsequent processes.

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