Mixing device for preparing graphene synthetic leather and use method

Abstract

The invention relates to the technical field of graphene synthetic leather preparation, and discloses a mixing device for graphene synthetic leather preparation and a use method.The preparation device comprises a mixing tank and an end cover fixed to the upper end of the mixing tank, a motor is fixed to the end cover, the driving end of the motor is connected with a transmission, and a stirring plate is rotationally arranged in the mixing tank; the stirring device is characterized in that the stirring device further comprises a soaking part which penetrates through the stirring plate and the end cover and is connected with the output end of the transmission; the reverse stirring part is rotationally and hermetically connected with the soaking part and is positioned on the inner side of the stirring plate; the cleaning part is arranged on the soaking part and the reverse stirring part and is positioned in the stirring plate; by means of the collaborative design of the soaking part, the stirring plate, the reverse stirring part and the cleaning part, the heating uniformity and efficiency are improved, the graphene agglomeration phenomenon is reduced, and the dispersing and mixing efficiency is improved.

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] The preparation of graphene synthetic leather usually uses a mixing and stirring device. It is necessary to add graphene materials and solvents into the mixing tank and stir and mix them by rotating the 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. Most traditional mixing devices use an external jacket or a single stirring structure for heating and mixing, which has problems such as low heat transfer efficiency and uneven temperature distribution, resulting in difficulty in effectively regulating the solvent viscosity. Graphene is prone to agglomeration due to local temperature differences, affecting the dispersion quality. In addition, it is difficult to thoroughly clean the residual materials in the existing equipment after mixing, which is prone to cross-contamination. Therefore, there is an urgent need for a mixing device for graphene synthetic leather preparation.

[0003] Due to uneven heating, the traditional graphene mixing device causes local overheating or insufficient temperature of the materials, inaccurate control of the 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: In a first aspect, a mixing device for graphene synthetic leather preparation 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. It further includes: 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-conducting oil to uniformly heat the preparation materials in cooperation with the stirring plate; A reverse stirring part, which is rotationally and sealingly connected to the heat equalizing part and is located inside the stirring plate to reversely stir the preparation materials; 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; 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. The heat conducting part is connected to the output end of the transmission and is rotationally and sealingly 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 conducting part. The disturbing part is rotationally and sealingly connected to the heat conducting part; The cleaning part includes a spray cleaning member and a rotary brush member. The spray cleaning member penetrates through the disturbing member and the injection / discharge member. The rotary brush member is symmetrically arranged through the stirring plate and is magnetically connected to the driving and connecting member.

[0006] Furthermore, the injection / discharge member includes: A first sleeve, arranged at the output end of the transmission; Two L-shaped pipes, symmetrically penetrating and fixedly arranged on the end cover and communicating with the first sleeve; A discharge pipe, penetrating through the lower end of the mixing tank and fixedly connected; A second sleeve, connected to the other end of the discharge pipe.

[0007] Furthermore, the heat conducting member includes: A spiral pipe, fixed at the output end of the transmission, penetrating through the first sleeve, and rotatably and sealingly connected to the first sleeve through a shaft seal and a bearing; A through port, opened on both sides of the spiral pipe and communicating with the first sleeve; Two C-shaped pipes, symmetrically arranged through the stirring plate and the spiral pipe, and one end extending to the inside of the spiral pipe; A rotating and connecting part, arranged below the spiral pipe and rotatably and sealingly connected to the second sleeve.

[0008] Furthermore, the rotating and connecting part includes: A rotating rod, fixedly penetrating through the stirring plate and located below the spiral pipe; Two rotating sleeves, respectively rotatably and sealingly connected to both ends of the rotating rod through bearings and shaft seals, and one of them is rotatably and sealingly connected to the lower end of the spiral pipe through bearings and shaft seals; A cylindrical groove, opened at the lower end of the rotating rod and communicating with the other end of the C-shaped pipe; A connecting pipe, one end of which is rotatably and sealingly connected to the lower end of the other rotating sleeve through bearings and shaft seals, and the other end is rotatably and sealingly connected to the second sleeve.

[0009] Furthermore, the disturbing member includes: Stirring plates, symmetrically fixed on the outer sides of the two rotating sleeves; Fixed plates, fixed on the inner sides of the stirring plates; A turbine, rotatably arranged inside the spiral pipe and connected to the rotating sleeve.

[0010] Furthermore, the driving and connecting member includes: A longitudinal rod, movably penetrating through the spiral pipe, the rotating rod and the connecting pipe, and the upper end thereof is connected to the turbine; Two push plates, fixed on the outer side of the longitudinal rod and respectively located inside the two rotating sleeves; T-shaped plates, fixed at both ends of the push plates and connected to the rotating sleeves for lifting and guiding.

[0011] Further, the spraying and cleaning component includes: Arc plates, symmetrically fixed on the pushing plate; Water channels, opened inside the stirring plate, penetrating through one end of the stirring plate, and communicating with the rotating sleeve; Gaskets, fixed on the outer sides of the arc plates, fitting with the inner walls of the rotating sleeves, and corresponding to the positions of the water channels; Tapered openings, penetrating through the stirring plate and communicating with the water channels; Rubber flaps, symmetrically arranged inside the tapered openings, and the outer sides are fixedly connected to the stirring plate; Oil collecting parts, arranged at the lower ends of the vertical rods, and sealingly penetrating through the second sleeves.

[0012] Further, the oil collecting parts include: Connecting rods, fixed at the lower ends of the vertical rods, movably penetrating through the second sleeves, and elastically connected to the second sleeves; Rubber rings, penetrating through the lower ends of the second sleeves, fixedly connected, and wrapping around the outer sides of the connecting rods; Arc arch discs, fixed at the lower ends of the connecting rods; Semicircular seats, rotatably sleeved on the outer sides of the arc arch discs and the connecting rods; Tapered discs, threadedly connected to the lower ends of the semicircular seats, and multiple through holes are penetrated and opened inside; Poking rods, one ends are welded on the outer sides of the connecting rods and are close to the inner walls of the tapered discs.

[0013] Further, the rotating brush component includes: First magnets, fixed on the outer sides of the vertical rods through connecting components and located inside the connecting pipes; Second magnets, movably sleeved on the outer sides of the connecting pipes and magnetically connected to the first magnets; Pressing rods, one ends are fixedly connected to the second magnets through connecting components, and the other ends penetrate through the stirring plates; Round heads, fixed at the other ends of the pressing rods and located inside the stirring plates; Triangular plates, arranged horizontally inside the stirring plates, located below the round heads, contacting the round heads, and elastically connected to the stirring plates; Nylon brushes, there are two, symmetrically arranged inside the stirring plates, penetrating through both sides of the stirring plates, and connected to the triangular plates through connecting components.

[0014] Second aspect, a usage method of a mixing device for preparing graphene synthetic leather, including: 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 transportation pipeline to the other L pipe, and the corresponding solenoid valve also remains closed; Remove the filling cap, inject graphene and solvents into the mixing tank through the end cap 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 transfer oil pipeline. Control the heat transfer 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, make the heat transfer oil circulate continuously, and uniformly heat the materials in the mixing tank through the stirring plate, spiral pipe and connecting pipe made of metal material; The flow of the heat transfer oil pushes the turbine in the spiral pipe to rotate counterclockwise, drives the vertical rod, push plate and T plate to rotate, and 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; 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 disc. The agglomerates and impurities are intercepted by the conical disc, and the discharged graphene dispersion liquid is collected for subsequent processes.

[0015] The above scheme of the present invention has at least the following beneficial effects: Through the collaborative design of the heat - equalizing part and the stirring plate, the dynamic and uniform heating is realized by using the heat transfer oil circulation system to penetrate the stirring structure, accurately regulating the viscosity of the solvent. Combining with the bidirectional shear force formed by the reverse stirring part, the agglomeration phenomenon of graphene is significantly reduced, 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 that there is no residue in the equipment and reducing the maintenance cost. Description of the Drawings

[0016] Figure 1 It is the overall three - dimensional view of the mixing device for preparing graphene synthetic leather provided by the embodiment of the present invention; Figure 2 It is the three - dimensional view of the combination of the heat - equalizing part, reverse stirring part and cleaning part provided by the embodiment of the present invention; Figure 3 It is the sectional plan view of the mixing device for preparing graphene synthetic leather provided by the embodiment of the present invention; Figure 4 It is the three - dimensional exploded view of the combination of the connecting pipe, second sleeve, rotating sleeve, spiral pipe and first sleeve provided by the embodiment of the present invention; Figure 5 It is the three - dimensional view of the combination of the vertical rod, turbine, second magnet and nylon brush provided by the embodiment of the present invention; Figure 6 For the embodiment of the present invention Figure 3 Schematic diagram of the structure at position A; Figure 7 For the embodiment of the present invention Figure 3 Schematic diagram of the structure at position B; Figure 8 For the embodiment of the present invention Figure 3 Schematic diagram of the structure at position C; Figure 9Provided by an embodiment of the present invention Figure 3 The structural schematic diagram of the D part in Figure 10 The three-dimensional structural schematic diagram of the combination of a triangular plate, a second spring, a pressure rod and a nylon brush provided by an embodiment of the present invention; Figure 11 The three-dimensional exploded view of the combination of a tapered disk, a connecting rod, a spring, a lever and a semi-circular seat provided by an embodiment of the present invention; Figure 12 The sectional plan view of the semi-circular seat provided by an embodiment of the present invention; Figure 13 The sectional three-dimensional exploded view of the stirring plate and the rotating sleeve provided by an embodiment of the present invention.

[0017] Explanation of reference numerals: 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, tapered disk; 40, through hole; 41, lever; 42, sealing gasket; 43, water channel; 44, tapered opening; 45, rubber flap; 46, first magnet; 47, second magnet; 48, connecting plate; 49, pressure rod; 50, round head; 51, L-shaped groove; 52, triangular plate; 53, second push rod; 54, second spring; 55, receiving groove; 56, brush plate; 57, nylon brush; 58, rubber circle; 59, turbine. Detailed implementation manners

[0018] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the 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.

[0019] 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, an electric motor 5 is fixed on the end cover 2, the driving end of the electric motor 5 is connected with a transmission 4, a stirring plate 6 is rotatably arranged in the mixing tank 1, a filling cover 3 is penetrated through the end cover 2, and further includes: The soaking section is arranged 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 cooperate with the stirring plate 6 to uniformly heat the prepared materials; The reverse stirring section is rotationally and hermetically connected to the soaking section and is located inside the stirring plate 6 to reversely stir the prepared materials; The cleaning section is arranged on the soaking section and the reverse stirring section and is located inside the stirring plate 6 to be driven by the reverse stirring section and cooperate with the soaking section to rinse and clean the mixing tank 1 and the stirring plate 6; The soaking section includes a filling and discharging part and a heat conducting part. The filling and discharging part is arranged 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 hermetically connected to the filling and discharging part; The reverse stirring section 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 hermetically connected to the heat conducting part; The cleaning section includes a spraying and cleaning part and a rotating brush part. The spraying and cleaning part is arranged through the disturbing part and the filling and discharging part, and the rotating brush part is symmetrically arranged through the stirring plate 6 and is magnetically connected to the driving and connecting part.

[0020] 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 is arranged 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.

[0021] 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 to make the motor 5 drive the transmission 4 to operate, so that 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.

[0022] As a preferred embodiment of the present invention, the filling and discharging part includes: The first sleeve 13 is arranged at the output end of the transmission 4; 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; The discharge pipe 21 penetrates through the lower end of the mixing tank 1 and is fixedly connected; The second sleeve 20 is connected to the other end of the discharge pipe 21.

[0023] 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 spiral pipe 11 through a bearing and a shaft seal, so that the spiral pipe 11 can rotate inside the first sleeve 13 without leaking liquid. 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 spiral pipe 11.

[0024] The heat-conducting member includes: The spiral pipe 11 is fixed at the output end of the transmission 4 and penetrates through the first sleeve 13, and is rotationally and sealingly connected with the first sleeve 13 through a shaft seal and a bearing; The through port 12 is opened through both sides of the spiral pipe 11 and is communicated with the first sleeve 13; The C-shaped pipe 16 is symmetrically arranged through the stirring plate 6 and the spiral pipe 11, and one end extends to the inside of the spiral pipe 11; The rotation connecting part is arranged below the spiral pipe 11 and is rotationally and sealingly connected with the second sleeve 20.

[0025] Specifically, the spiral 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 spiral pipe 11. The spiral 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 spiral 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.

[0026] The rotation connecting part includes: The rotating rod 17 is fixedly arranged through the stirring plate 6 and is located below the spiral pipe 11; There are two rotating sleeves 23, which are respectively rotationally and sealingly connected to both ends of the rotating rod 17 through a bearing and a shaft seal, and one of them is rotationally and sealingly connected to the lower end of the spiral pipe 11 through a bearing and a shaft seal; The cylindrical groove 18 is opened at the lower end of the rotating rod 17 and is communicated with the other end of the C-shaped pipe 16; One end of the connecting pipe 19 is rotationally and sealingly connected to the lower end of the other rotating sleeve 23 through a bearing and a shaft seal, and the other end is rotationally and sealingly connected to the second sleeve 20.

[0027] 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-shaped pipe 16. The other 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 opening of the cylindrical groove 18, can provide support for the other end of the C-shaped pipe 16, and can provide rotational support for the rotating sleeve 23, enabling the rotating sleeve 23 to rotate by an external force under the support of the rotating rod 17. Another rotating 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 pass through the rotating sleeve 23 and enter the inner side of the connecting pipe 19, and then penetrate through the connecting pipe 19 and be discharged into the inner side of the second sleeve 20. Subsequently, it will pass through the second sleeve 20 and enter the discharge pipe 21. An electric control valve 22 is connected to the lower end of the discharge pipe 21. When the electric control valve 22 is in the normally open state and is opened, the heat-conducting oil or cleaning liquid in the discharge pipe 21 can be discharged.

[0028] 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-port 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 spiral sleeve 23. The gasket 42 will fit with the inner wall of the spiral 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 spiral sleeve 23 and the water channel 43. Furthermore, the inner sides of the spiral sleeve 23 and the spiral pipe 11 can be filled with heat-conducting oil. At the same time, the heat-conducting oil will flow from the spiral pipe 11 into the inner side of the C-shaped pipe 16, 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 spiral sleeve 23, and then pass through this spiral 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 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 use the heat-conducting oil flowing in the C-shaped pipe 16 to heat the stirring plate 6, the connecting pipe 19 and the spiral pipe 11 made of metal material, 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 up in the graphene and the solvent, thereby improving the heating efficiency and uniformity, reducing the viscosity of the solvent and making the graphene more easily dispersed by the shear force, and reducing the agglomeration phenomenon.

[0029] In another preferred embodiment of the present invention, the disturbing member includes: Stirring plates 24, symmetrically fixed on the outer sides of the two spiral sleeves 23; Fixed plates 25, fixed on the inner sides of the stirring plates 24; Turbo 59, rotatably arranged inside the spiral pipe 11 and connected to the spiral sleeve 23.

[0030] 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 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.

[0031] The driving and connecting member includes: A vertical rod 26, movably penetrating through the rotating pipe 11, the rotating rod 17 and the connecting pipe 19, and the upper end thereof is connected to the turbine 59; There are two pushing plates 27, which are fixed on the outer side of the vertical rod 26 and are respectively located inside the two rotating sleeves 23; T-shaped plates 28 are fixed at both ends of the pushing plate 27 and are connected to the rotating sleeve 23 in a lifting and guiding manner.

[0032] Specifically, T-shaped guide grooves 30 are symmetrically formed in 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 lifting and moving guiding function for 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 vertical rod 26, the pushing plate 27, the T-shaped plate 28, the arc-shaped plate 29 and the turbine 59 under the support of the second sleeve 20. The sealing 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 vertical rod 26. The turbine 59 can drive the vertical rod 26 and the pushing plate 27 to rotate counterclockwise together by using the rotating power, and can drive the T-shaped plate 28 to rotate together through the pushing plate 27, so that the T-shaped plate 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 groove 30.

[0033] 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 vertical rod 26 and the pushing plate 27 to rotate together, the pushing plate 27 can drive the T-shaped plate 28 to rotate, and the T-shaped plate 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 direction opposite to 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.

[0034] As a preferred embodiment of the present invention, the spraying and cleaning member includes: Arc-shaped plates 29, symmetrically fixed on the pushing plate 27; The water channel 43 is opened inside the stirring plate 24, penetrates through one end of the stirring plate 24, and communicates with the rotating sleeve 23; The gasket 42 is fixed on the outer side of the arc plate 29, fits against the inner wall of the rotating sleeve 23, and corresponds to the position of the water channel 43; The tapered opening 44 penetrates through the stirring plate 24 and communicates with the water channel 43; The rubber flaps 45 are symmetrically arranged inside the tapered opening 44, and the outer sides are fixedly connected to the stirring plate 24; The oil collecting and filtering part is arranged at the lower end of the vertical rod 26 and hermetically penetrates through the second sleeve 20.

[0035] Specifically, the push plate 27 can provide support for the arc plate 29, the arc plate 29 can provide stable support for the gasket 42, the gasket 42 is made of rubber and can play a role in sealing the rotating sleeve 23, the stirring plate 24 can provide an opening space for the water channel 43 and the tapered opening 44, the water channel 43 can provide a flow channel for the cleaning liquid, and the tapered opening 44 can use the tapered structure to cooperate with the water pressure to provide a spraying channel for the cleaning liquid, and 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 against each other to play a role in sealing the tapered opening 44.

[0036] The oil collecting and filtering part includes: The connecting rod 32 is fixed at the lower end of the vertical rod 26, movably penetrates through the second sleeve 20, and is elastically connected to the second sleeve 20; The rubber ring 31 penetrates through the lower end of the second sleeve 20, is fixedly connected, and is wrapped around the outer side of the connecting rod 32; The arc arch plate 35 is fixed at the lower end of the connecting rod 32; The semi-circular seat 36 is rotatably sleeved on the outer sides of the arc arch plate 35 and the connecting rod 32; The tapered disk 39 is threadedly connected to the lower end of the semi-circular seat 36, and a plurality of through holes 40 are internally penetrated; One end of the lever 41 is welded to the outer side of the connecting rod 32 and is close to the inner wall of the tapered disk 39.

[0037] Specifically, a support disk 33 is fixed on 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 disk 33 through a connecting component, and the other end is fixedly connected to the second sleeve 20 through a connecting component.

[0038] The rotary brush part includes: The first magnet 46 is fixed on the outer side of the vertical rod 26 through a connecting component and is located inside the connecting pipe 19; The second magnet 47 is movably sleeved on the outer side of the connecting pipe 19 and is magnetically connected to the first magnet 46; The compression bar 49 is fixedly connected to the second magnet 47 at one end through a connecting component, and penetrates through the stirring plate 6 at the other end; The round head 50 is fixed to the other end of the compression bar 49 and is located inside the stirring plate 6; The triangular plate 52 is arranged to translate inside the stirring plate 6, and is located below the round head 50, contacts the round head 50, and is elastically connected to the stirring plate 6; 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.

[0039] Specifically, a threaded ring 37 is welded to the lower end of the round head 50, and the threaded ring 37 is threadedly connected through the lower end of the conical 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 outside 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 compression bar 49. An L-shaped groove 51 is formed inside the stirring plate 6. A second push rod 53 is fixed to the outside 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 the brush plate 56 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 outside of the compression bar 49 and fits tightly.

[0040] In the actual application process of this embodiment, after the graphene and the solvent stirrer 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 towards 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 and discharges 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 of the larger aggregates, impurities and the graphene dispersion liquid adhered to them, the conical disk 39 will be pushed downward, so that the conical disk 39 uses gravity to pull the connecting rod 32 downward through the semi-circular seat 36 and the arc-shaped disk 35, so that the connecting rod 32 overcomes the friction 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 an external force. At the same time, the staff needs to control the closing of the solenoid valve 15 for transporting 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 transporting the cleaning liquid to another L-shaped pipe 14, so that the cleaning liquid can pass through another L-shaped pipe 14 and the solenoid valve 15 and 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 through the vertical rod 26 to overcome the friction with the rubber ring 31, so that the connecting rod 32 drives the arc-shaped disk 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.

[0041] When the connecting rod 32 moves downward, it drives the vertical rod 26 to move downward together by 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, and 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 inside 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, and further enabling the cleaning liquid in the water channel 43 to spray onto the inner wall of the mixing tank 1 and the outer wall of the stirring plate 6 through the conical opening 44 under the action of the water pressure. And when the vertical rod 26 is pulled downward, it drives the first magnet 46 to move downward inside the connecting pipe 19 together, so that the first magnet 46 can drive the second magnet 47 attracted by opposite sex to move downward together by magnetic force during the movement, so that the second magnet 47 can drive the pressure rod 49 and the round head 50 to move in the direction close to the triangular plate 52 by overcoming the friction force with the rubber ring 58 through the connecting plate 48, so that the round head 50 can, during the downward movement, push the triangular plate 52 downward by using the gravity of the agglomerates and impurities filtered and collected in the conical disk 39 and the adhered graphene dispersant, so that the round head 50 can, under the action of the external force, cooperate with its own arc and the inclination angle of the triangular plate 52 to push the triangular plate 52 to translate along the L-groove 51 in the direction away from the vertical rod 26, and further enable the triangular plate 52 to 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 fit with 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 pressure 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, and further enable the nylon brush 57 to brush and clean the inner wall of the mixing tank 1 by using the cleaning liquid sprayed from the water channel 43 and the conical opening 44 during the rotation. After the cleaning is completed, close the solenoid valve 15 connected to the other L-pipe 14 and open the electric control valve 22 to discharge the cleaning liquid.

[0042] 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 a hook to provide sufficient gravity.

[0043] Subsequently, the staff needs to remove the bolts connecting the disc valve 10 and the drain 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 drain 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 drain 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 squeezed and contracted second spring 54 will reset by using the elastic force, and then push the vertical rod 26 and the triangular plate 52 to reset.

[0044] As a preferred embodiment of the present invention, a method for using a mixing device for preparing graphene synthetic leather includes: 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; 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; 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 continuously circulates, 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; 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. 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; After mixing is completed, turn off the motor 5, open the disc valve 10 at the end of the drain pipe 9, and the mixed liquid flows into the drain 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.

[0045] 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 solvent in the mixing tank 1.

[0046] External high-temperature heat-conducting oil (200 - 280 °C) is injected into the coil 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 pipe 19 through the through-port 12, and finally returns to the external circulation system through the discharge pipe 21. The stirring plate 6, the coil 11, and the connecting pipe 19 made of metal absorb the heat of the heat-conducting oil, and through rotational contact, uniformly heat the material in multiple areas, reduce the viscosity of the solvent, and reduce the agglomeration of graphene. The heat-conducting oil forms a closed-loop circulation through the coil 11, the C-tube 16, and the connecting pipe 19. The metal stirring components are in direct contact with the material, achieving synchronous heating in multiple areas, improving the temperature uniformity, effectively reducing the viscosity of the solvent, and reducing the agglomeration of graphene.

[0047] The flow of the heat-conducting oil or the cleaning liquid drives the turbine 59 to rotate counterclockwise, drives the vertical rod 26, the push plate 27, and the T-plate 28 to push the rotating sleeve 23 to rotate in the reverse direction. The stirring plate 24 on the outer side of the rotating sleeve 23 and the fixed plate 25 form a reverse shear 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 bidirectional shear force, improving the mixing efficiency and the uniformity of graphene dispersion. The reverse-stirring part turbine 59 is driven by the fluid flow, without the need for an additional motor 5, reducing energy consumption.

[0048] After the 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 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 from 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 synergy of spraying + nylon brush 57 realizes self-cleaning of the tank body, shortens the cleaning time, and reduces the risk of cross-contamination.

[0049] During discharging, the conical disk 39 intercepts large particles through the through-hole 40. The gravity of the impurities presses down the conical 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 conical disk 39 design 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 conical 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 the requirements of different material particle sizes. The multi-layer shaft seal plus the rubber ring 31 ensures zero leakage of the high-temperature oil circuit.

[0050] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of 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 at the upper end, a motor is fixed on the end cover, a transmission is connected to the driving end of the motor, a stirring plate is rotatably arranged in the mixing tank, and a filling cap is penetrated on the end cover, characterized in that it also includes: The heat-evening part is arranged through the stirring plate and the end cover and is connected to the output end of the transmission to convey the heat-conducting oil to cooperate with the stirring plate to evenly heat the prepared material; The reverse stirring part is rotatably sealed and connected with the heat equalizing part and is located inside the stirring plate to prepare the material by reverse stirring; The cleaning part is arranged on the heat-averaging part and the back-stirring part and is located inside the stirring plate, so as to be driven by the back-stirring part and cooperate with the heat-averaging part to wash and clean the mixing tank and the stirring plate; The heat equalizing part comprises an injection and discharge member and a heat conducting member, wherein the injection and discharge member is arranged through the filling cover and the mixing tank, and the heat conducting member is connected to the output end of the transmission and is rotationally sealed with the injection and discharge member; The anti-stirring part comprises a driving member and a disturbing member, wherein the driving member is arranged in the heat-conducting member, and the disturbing member is rotatably and sealedly connected with the heat-conducting member; The cleaning part comprises a spray cleaning part and a rotating brush part. The spray cleaning part is arranged through the disturbing part and the injection and discharge part, and the rotating brush part is symmetrically arranged through the stirring plate, and is magnetically connected with the driving and connecting part.

2. The mixing device for preparing graphene synthetic leather according to claim 1, characterized in that: The injection molding parts include: A first sleeve, disposed at an output end of the transmission; There are two L tubes, which are symmetrically passed through the end cover and fixedly arranged, and are connected with the first sleeve; A discharge pipe passes through the lower end of the mixing tank and is fixedly connected; The second sleeve is connected to the other end of the discharge pipe.

3. The mixing device for preparing graphene synthetic leather according to claim 2, characterized in that: The heat conducting member comprises: The vortex tube is fixed at the output end of the transmission and passes through the first sleeve, and is rotationally sealed and connected with the first sleeve through a shaft seal and a bearing; A through port is opened through both sides of the coil and is communicated with the first sleeve; The C tube is symmetrically arranged through the stirring plate and the spiral tube, and one end of the tube extends to the inner side of the spiral tube; The rotary connection part is arranged below the spiral tube and is rotatably and sealingly connected with the second sleeve.

4. The mixing device for preparing graphene synthetic leather according to claim 3, characterized in that: The transfer parts include: A rotating rod is fixedly arranged to penetrate the stirring plate and is located below the spiral tube; There are two rotary sleeves, which are respectively connected to the two ends of the rotating rod through bearings and shaft seals, and one of them is connected to the lower end of the spiral tube through bearings and shaft seals; A cylindrical groove is provided at the lower end of the rotating rod and is connected with the other end of the C tube; The connecting pipe has one end which is rotatably sealed and connected to the lower end of another rotating sleeve through a bearing and a shaft seal, and the other end which is rotatably sealed and connected to the second sleeve.

5. The mixing device for preparing graphene synthetic leather according to claim 4, characterized in that: The disturbing member comprises: A stirring plate, symmetrically fixed on the outer sides of the two rotating sleeves; A fixing plate, fixed on the inner side of the stirring plate; The turbine is rotatably arranged on the inner side of the rotary tube and connected with the rotary sleeve.

6. The mixing device for preparing graphene synthetic leather according to claim 5, characterized in that: The drive connecting member comprises: A longitudinal rod, which movably passes through the rotary tube, the rotating rod and the connecting tube, and the upper end of which is connected to the turbine; There are two push plates, which are fixed on the outside of the longitudinal rod and are respectively located on the inside of the two rotating sleeves; The T-plate is fixed at both ends of the push plate and is connected with the lifting guide of the rotary sleeve.

7. The mixing device for preparing graphene synthetic leather according to claim 5, characterized in that: The spray cleaning part comprises: The arc plate is symmetrically fixed on the push plate; A water channel is provided inside the stirring plate, passes through one end of the stirring plate, and is connected with the rotary sleeve; The gasket is fixed on the outside of the arc plate and fits with the inner wall of the rotary sleeve, corresponding to the position of the waterway; The conical opening is opened through the stirring plate and is connected with the water channel; The rubber flap is symmetrically arranged on the inner side of the cone mouth, and the outer side is fixedly connected to the stirring plate; The filter collecting component is arranged at the lower end of the longitudinal rod and sealably penetrates the second sleeve.

8. The mixing device for preparing graphene synthetic leather according to claim 7, characterized in that: The filter parts include: A connecting rod is fixed to the lower end of the longitudinal rod, movably passes through the second sleeve, and is elastically connected to the second sleeve; A rubber ring passes through the lower end of the second sleeve and is fixedly connected and wrapped around the outer side of the connecting rod; The arc arch plate is fixed to the lower end of the connecting rod; A semicircular seat is rotatably sleeved on the outside of the arc arch plate and the connecting rod; The cone disk is threadedly connected to the lower end of the semicircular seat and has a plurality of through holes formed therein; The lever has one end welded to the outside of the connecting rod and close to the inner wall of the cone disk.

9. The mixing device for preparing graphene synthetic leather according to claim 8, characterized in that: The rotating brush member comprises: The first magnet is fixed to the outside of the longitudinal rod through a connecting component and is located on the inside of the connecting tube; The second magnet is movably sleeved on the outside of the connecting tube and is magnetically connected to the first magnet; A pressure rod, one end of which is fixedly connected to the second magnet through a connecting component, and the other end of which is arranged to penetrate the stirring plate; A round head is fixed to the other end of the pressure rod and is located inside the stirring plate; The triangular plate is arranged in translation inside the stirring plate and 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.

10. A method for using the mixing device for preparing graphene synthetic leather according to any one of claims 1 to 9, characterized in that: include: Connect the circulation pipeline for delivering heat transfer oil to one of the L-tubes and ensure that the corresponding solenoid valve is in the closed state. Connect the cleaning liquid delivery pipeline to the other L-tube and keep the corresponding solenoid valve closed as well. Remove the filling cap, inject graphene and solvent into the mixing tank through the end cap opening, and reseal the filling cap to 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 transfer oil pipeline, control the 200-280℃ heat transfer oil to enter the first sleeve through the L tube, and flow into the coil, C tube and connecting pipe through the opening to form a cycle. Keep the electric control valve open to keep the heat transfer oil circulating, and evenly heat the materials in the mixing tank through the metal stirring plate, coil and connecting pipe; The flow of heat transfer oil drives the turbine in the spiral tube to rotate counterclockwise, driving the longitudinal rod, push plate and T plate to rotate. The T plate drives the rotary sleeve to rotate counterclockwise through the T guide groove, causing the stirring plate and the stirring plate to move in opposite directions, thereby increasing the shear force and reducing graphene agglomeration. After the mixing is completed, the motor is turned off and the disc valve at the end of the discharge pipe is opened. The mixed liquid flows into the discharge pipe after being filtered through the through holes of the cone disc. Agglomerates and impurities are intercepted by the cone disc, and the discharged graphene dispersion is collected for use in subsequent processes.

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