A stirring and mixing device for graphene processing and an operation method thereof

Abstract

The invention relates to the technical field of graphene processing and mixing preparation, and discloses a stirring and mixing device for graphene processing and an operation method thereof, wherein the stirring and mixing device for graphene processing comprises a mixing tank, a feeding port is arranged at the upper part of the mixing tank, and a stirring and mixing unit is arranged in the mixing tank; the stirring and mixing unit comprises: a stirring component, the stirring component is arranged in the mixing tank; a driving component, the driving component is arranged in the feeding port; under the mutual cooperation of the stirring component and the driving component, the driving motor is driven to realize that the outer rotating tube drives the mixing blade to rotate horizontally to stir and mix the graphene and surfactant in the mixing tank, and the upper rotating wheel moves on the lifting guide rail to make the vertical sliding column reciprocate and lift, and then the mixing blade is reciprocated to rotate to turn the graphene and surfactant in the mixing tank, thereby improving the stirring and mixing efficiency of the graphene and the surfactant.

Description

Technical Field

[0001] The invention relates to the technical field of graphene processing and mixing preparation, and in particular to a stirring and mixing device for graphene processing and an operating method thereof. Background Art

[0002] During the production and processing of graphene, it is usually necessary to stir and mix with a specific liquid medium to achieve uniform dispersion. Due to its excellent physical and chemical properties, such as high conductivity, high specific surface area and excellent mechanical strength, graphene has broad application prospects in batteries, sensors, coatings and other fields. In order to improve the dispersibility of graphene in different media, surfactants are usually added. These surfactants help reduce the interaction force between graphene particles, prevent agglomeration, and make it easier to mix with other materials.

[0003] In the prior art, there are still the following problems:

[0004] In the prior art, the stirring and mixing device usually drives the stirring shaft by a motor to make the mixing blades rotate horizontally to stir and mix the graphene and the surfactant in the mixing tank. Since the mixing blades are fixed on the stirring shaft, the stirring and mixing efficiency of the graphene and the surfactant is low only by a single horizontal rotation.

[0005] In the prior art, the surfactant is usually poured directly into the graphene at one time and stirred and mixed. However, the one-time addition of the surfactant easily leads to poor distribution uniformity of the surfactant in the graphene. Some areas are prone to oversaturation due to excessively high surfactant concentrations, while other areas may not be able to effectively disperse the graphene due to insufficient concentrations. Summary of the invention

[0006] In view of the problems existing in the prior art, a stirring and mixing device for graphene processing and an operating method thereof are proposed.

[0007] The technical solution of the present invention is: a stirring and mixing device for graphene processing, comprising a mixing tank, a feeding port is arranged at the upper part of the mixing tank, and a stirring and mixing unit is arranged in the mixing tank;

[0008] The stirring and mixing unit comprises: a stirring member, the stirring member is arranged in a mixing tank;

[0009] A driving component, wherein the driving component is arranged in the delivery port;

[0010] The stirring component includes a mounting plate, which is arranged on the inner wall of the delivery port, and the mounting plate is rotatably connected with an outer rotating tube through the mounting plate, and a vertical sliding column is arranged in the outer rotating tube, and the top end of the vertical sliding column slides through the top end of the outer rotating tube and then extends to the outside, and a plurality of mixing blades are arranged on four sides of the outer rotating tube from top to bottom, and one end of the mixing blade close to the outer rotating tube is connected with a transverse rotating shaft, and the transverse rotating shaft passes through and is rotatably arranged on the outer rotating tube, and one end of the transverse rotating shaft extends into the outer rotating tube and is connected with an eccentric block, one end of the eccentric block is rotatably connected with a connecting rod through the eccentric shaft, and one end of the connecting rod is rotatably connected to the column wall of the vertical sliding column through a pin shaft, and an upper rotating wheel is rotatably connected to one side of the top end of the vertical sliding column, and a ring-shaped wavy lifting guide rail is connected to the inner wall of the delivery port through a transverse support rod, and the upper rotating wheel is rollingly arranged on the upper surface of the lifting guide rail.

[0011] Furthermore, the driving component includes a driving motor, which is arranged on the top of the mounting plate, and the rotating end of the driving motor is fixedly connected to a worm, a worm wheel is sleeved on the outer side of the top end of the outer rotating tube, and the worm wheel is meshed with the worm, and a lifting spring is sleeved on the outer side of the vertical sliding column, and the top end of the lifting spring is connected to the inner wall of the outer rotating tube, and the bottom end of the lifting spring is connected to the column wall of the vertical sliding column.

[0012] Furthermore, a liquid agent adding unit is arranged in the mixing tank, and the liquid agent adding unit comprises an adding component, and the adding component is arranged in the mixing tank, and a rotating adjustment component is arranged on the adding component.

[0013] Furthermore, the adding component includes an annular liquid storage cylinder, which is sleeved on the upper outer side of the mixing tank, and a plurality of liquid guiding shells are arranged in a circular array in the mixing tank, and the top of the liquid guiding shell passes through the bottom wall of the annular liquid storage cylinder and is connected with the interior thereof, a sealed adding tube is sealed and rotatably arranged in the liquid guiding shell, an inlet and outlet are opened on the top of the sealed adding tube, a liquid adding port is arranged on the upper part of the liquid guiding shell, and a liquid outlet is arranged on the lower part of the liquid guiding shell, and the inlet and outlet are arranged opposite to the liquid adding port, and one end of the sealed adding tube passes through the shell wall of the liquid guiding shell and extends to the outside and is connected to a gear.

[0014] The cam is provided with a plurality of toothed wheels, the toothed wheels are meshed with the toothed wheels, and the toothed wheels are meshed with the toothed wheels.

[0015] Furthermore, a graphene feeding hopper is provided in the feeding port, a screening plate is provided in the graphene feeding hopper, a number of screening holes are evenly opened on the screening plate, two supporting parts are symmetrically provided on both sides of the inside of the feeding port, and vibrating screen springs are provided on the top of the two supporting parts, and the top of the vibrating screen springs is connected to the bucket wall of the graphene feeding hopper, and the outer wall of the graphene feeding hopper is slidably arranged on one side of the support part, and the top of the vertical sliding column is rotatably connected to a rotating block, and the top of the rotating block abuts against the bucket wall of the graphene feeding hopper.

[0016] Furthermore, the present application also provides an operating method of a stirring and mixing device for graphene processing, comprising the following steps:

[0017] S1: Add liquid surfactant into the annular liquid storage cylinder and add graphene powder into the graphene feeding hopper;

[0018] S2: The driving component drives the outer rotating tube to drive the mixing blade to rotate horizontally, and the vertical sliding column reciprocates to make the mixing blade swing back and forth, and the mixing blade stirs and mixes the materials in the annular liquid storage cylinder;

[0019] The adding component is driven by the rotating adjusting component to intermittently sprinkle the surfactant into the mixing tank;

[0020] The graphene feeding hopper and the screening plate are reciprocated up and down by the reciprocating motion of the vertical sliding column, thereby accelerating the screening efficiency of the graphene powder falling on the screening plate;

[0021] S3: After the mixing is completed, open the valve on the discharge pipe so that the material in the mixing tank can be discharged through the discharge pipe.

[0022] Furthermore, when the sieve plate is screening the graphene powder, graphene powder particles with a particle size smaller than the sieve holes of the sieve plate pass through the sieve and fall into the mixing tank, while graphene powder particles with a particle size larger than the sieve holes of the sieve plate are blocked above the sieve plate.

[0023] Beneficial effects of the present invention:

[0024] With the cooperation of the stirring component and the driving component in the stirring and mixing unit, the driving motor is used to drive the mixing blades to rotate horizontally to stir and mix the graphene and surfactant in the mixing tank, and the upper rotating wheel moves on the lifting guide rail to make the vertical sliding column reciprocate and lift, thereby making the mixing blades reciprocate to turn over the graphene and surfactant in the mixing tank, thereby improving the stirring and mixing efficiency of the graphene and surfactant.

[0025] Through the cooperation of the adding component and the rotating adjustment component in the liquid adding unit, the outer rotating tube drives the lower rotating wheel to rotate, so that the lower rotating wheel rotates cyclically along the upper horizontal guide groove, the downward inclined guide groove, the lower horizontal guide groove, and the upward inclined guide groove in sequence. When the lower rotating wheel is in the upper horizontal guide groove, the inlet and outlet are upward and just correspond to the liquid adding port, so that the surfactant is automatically added to the sealed adding tube, and the surfactant is added to the sealed adding tube when the lower rotating wheel moves in the upper horizontal guide groove. When the lower rotating wheel moves along the downward inclined guide groove, the lower rotating wheel pushes the adjusting ring to move upward, so that the sealed adding tube rotates so that the inlet and outlet are downward, and when the lower rotating wheel enters the lower horizontal guide groove for movement, the inlet and outlet always remain downward, so that the surfactant in the sealed adding tube is added. The surfactant is spilled out from the liquid outlet, and the lower wheel enters the upward inclined guide groove from the lower horizontal guide groove. The lower wheel moves along the upper inclined guide groove to squeeze the adjustment ring to move downward, causing the sealed adding tube to rotate in the opposite direction, so that the inlet and outlet are facing upward to add the surfactant again, thereby realizing automatic intermittent addition of surfactant to the mixing tank. By intermittently and gradually adding surfactant, the interaction force between graphene particles can be gradually reduced, which helps to prevent the occurrence of agglomeration. Intermittent addition helps to achieve a more uniform mixing effect, reducing the one-time addition of surfactant, which causes oversaturation in some areas due to excessively high surfactant concentration, while other areas cannot be effectively dispersed due to insufficient concentration.

[0026] Through the mutual cooperation of the graphene feeding hopper, the screening plate, the supporting part, the vibrating screen spring, the rotating block and the discharge pipe, the vertical sliding column is used to drive the rotating block to rise and fall while lifting and lowering, so that the graphene feeding hopper is pushed upward by the rotating block and the graphene feeding hopper is pulled downward by the vibrating screen spring, thereby realizing the reciprocating lifting and lowering vibration of the graphene feeding hopper, thereby accelerating the screening efficiency of the graphene powder falling on the screening plate, and filtering and blocking large-grained graphene particles, so that the size of the graphene particles during mixing is more uniform, and preventing large-grained graphene particles from entering and affecting the subsequent mixing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is an overall cross-sectional view of the present invention;

[0029] Figure 3 It is a partial cross-sectional view of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the stirring and mixing unit in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the vertical sliding column in the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the mixing blade in the present invention;

[0033] Figure 7 This is a schematic diagram of the structure where components are added in the present invention;

[0034] Figure 8 It is an enlarged view of point A in the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the liquid guide shell in the present invention;

[0036] Fig.10 This is a schematic diagram of the structure of the sealing adding pipe in the present invention;

[0037] Fig.11 It is a cross-sectional view of the liquid guide shell in the present invention;

[0038] Fig.12 The cross-sectional view of the adjusting ring in the present invention is shown in FIG. Figure 1 ;

[0039] Fig.13 The cross-sectional view of the adjusting ring in the present invention is shown in FIG. Figure 2 ;

[0040] Fig.14It is a schematic diagram of the state after the adjustment ring is cut off and stretched straight;

[0041] Fig.15 It is a schematic diagram of the structure of the graphene feeding hopper in the present invention.

[0042] In the figure: 1, mixing tank; 2, feeding port; 3, stirring and mixing unit; 31, stirring component; 311, mounting plate; 312, outer rotating pipe; 313, vertical sliding column; 314, mixing blade; 315, horizontal rotating shaft; 316, eccentric block; 317, connecting rod; 318, upper rotating wheel; 319, lifting guide rail; 32, driving component; 321, driving motor; 322, worm; 323, worm wheel; 324, lifting spring; 4, liquid adding unit; 41, adding component; 411, annular liquid storage cylinder; 41 2. Liquid guide shell; 413. Sealed addition tube; 414. Inlet and outlet; 415. Liquid addition port; 416. Liquid outlet; 417. Gear; 42. Rotary adjustment component; 421. Adjustment ring; 422. Rack; 423. Upper horizontal guide groove; 424. Downward inclined guide groove; 425. Lower horizontal guide groove; 426. Upward inclined guide groove; 427. Lower rotary wheel; 428. Vertical guide column; 5. Graphene feeding hopper; 6. Screening plate; 7. Support part; 8. Vibrating screen spring; 9. Rotating block; 10. Discharge pipe. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Example

[0044] Reference Figure 1-6 , which is the first embodiment of the present invention, provides a stirring and mixing device for graphene processing, including a mixing tank 1, a feeding port 2 is opened on the upper part of the mixing tank 1, and a stirring and mixing unit 3 is installed in the mixing tank 1; the stirring and mixing unit 3 includes: a stirring component 31, the stirring component 31 is installed in the mixing tank 1; a driving component 32, the driving component 32 is installed in the feeding port 2;

[0045] The stirring component 31 includes a mounting plate 311, which is fixedly connected to the inner wall of the delivery port 2. The mounting plate 311 is rotatably connected to an outer rotating tube 312. A vertical sliding column 313 is arranged in the outer rotating tube 312. The top end of the vertical sliding column 313 slides through the top end of the outer rotating tube 312 and then extends to the outside. The cross-section of the vertical sliding column 313 is square and can only slide up and down along the outer rotating tube 312. A plurality of mixing blades 314 are arranged on the four sides of the outer rotating tube 312 from top to bottom. The mixing blade 314 is fixedly connected to the horizontal rotation shaft 314 at one end close to the outer rotating tube 312. 5. The transverse rotation axis 315 penetrates and is rotatably connected to the outer rotating tube 312. One end of the transverse rotation axis 315 extends into the outer rotating tube 312 and is fixedly connected to an eccentric block 316. One end of the eccentric block 316 is rotatably connected to a connecting rod 317 through the eccentric axis. One end of the connecting rod 317 is rotatably connected to the column wall of the vertical sliding column 313 through a pin shaft. An upper rotating wheel 318 is rotatably connected to one side of the top of the vertical sliding column 313. A circular wavy lifting guide rail 319 is fixedly connected to the inner wall of the delivery port 2 through a transverse support rod. The upper rotating wheel 318 is rotatably set on the upper surface of the lifting guide rail 319.

[0046] Specifically, when the outer rotating tube 312 is subjected to force to rotate on the mounting plate 311, the rotation of the outer rotating tube 312 drives the mixing blades 314 to rotate horizontally, and the rotation of the outer rotating tube 312 drives the vertical sliding column 313 to make the upper rotating wheel 318 move along the lifting guide rail 319, and the vertical sliding column 313 reciprocates up and down to drive the connecting rod 317 to move, and then the connecting rod 317 drives the eccentric block 316 to move, thereby driving the transverse rotation shaft 315 to reciprocate through the eccentric block 316, and the reciprocating rotation of the transverse rotation shaft 315 drives the mixing blades 314 to swing back and forth.

[0047] Reference Figure 1-5 The driving component 32 includes a driving motor 321, which is fixedly connected to the top of the mounting plate 311. The rotating end of the driving motor 321 is fixedly connected to a worm 322. A worm wheel 323 is fixedly sleeved on the outer side of the top end of the outer rotating tube 312. The worm wheel 323 is meshed with the worm 322. A lifting spring 324 is sleeved on the outer side of the vertical sliding column 313. The top end of the lifting spring 324 is fixedly connected to the inner wall of the outer rotating tube 312, and the bottom end of the lifting spring 324 is fixedly connected to the column wall of the vertical sliding column 313.

[0048] Specifically, the worm 322 is driven to rotate by the rotating end of the driving motor 321, and the worm 322 drives the worm wheel 323 to rotate, so that the outer rotating tube 312 can rotate. When the vertical sliding column 313 moves upward, the lifting spring 324 is elastically stretched. When the vertical sliding column 313 moves downward, the elastic potential energy of the lifting spring 324 is released and it shrinks and resets. Example

[0049] Reference Figure 1-11, which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: a liquid adding unit 4 is arranged in the mixing tank 1, and the liquid adding unit 4 includes an adding component 41, and the adding component 41 is installed in the mixing tank 1, and a rotating adjustment component 42 is installed on the adding component 41; the adding component 41 includes an annular liquid storage cylinder 411, and the annular liquid storage cylinder 411 is sleeved on the upper outer side of the mixing tank 1, and a plurality of liquid guide shells 412 are fixedly connected along the circumferential array in the mixing tank 1, and the top of the liquid guide shell 412 passes through the bottom wall of the annular liquid storage cylinder 411 and is connected with the inside thereof, and the liquid guide shell 412 is connected with the inside thereof. A sealed addition tube 413 is rotatably connected inside the shell 412. The interior of the sealed addition tube 413 is hollow. An inlet and outlet 414 is provided on the top of the sealed addition tube 413. A liquid adding port 415 is provided on the upper part of the liquid guiding shell 412. A liquid outlet 416 is provided on the lower part of the liquid guiding shell 412. The inlet and outlet 414 are arranged opposite to the liquid adding port 415. One end of the sealed addition tube 413 passes through the shell wall of the liquid guiding shell 412 and extends to the outside and is fixedly connected to a gear 417. The inlet and outlet 414 and the liquid outlet 416 are both long strip-shaped openings, which increase the spraying range of the surfactant.

[0050] Specifically, the sealed adding tube 413 is driven to rotate synchronously by the rotation of the gear 417, so that the sealing adding tube 413 can adjust the upward or downward state of the liquid adding port 415. When the liquid adding port 415 is facing upward, the inlet and outlet 414 corresponds to the liquid adding port 415, so that the surfactant in the annular liquid storage cylinder 411 is added to the sealed adding tube 413. When the sealed adding tube 413 is rotated so that the inlet and outlet 414 corresponds to the liquid outlet 416 downward, the surfactant in the sealed adding tube 413 flows out through the inlet and outlet 414 and the liquid outlet 416.

[0051] Reference Figure 1-14 The rotation adjustment component 42 includes an adjustment ring 421, which is coaxially arranged with the outer rotating tube 312. A plurality of racks 422 corresponding to the gears 417 are fixedly connected to the bottom of the adjustment ring 421. The racks 422 are meshed with the gears 417. An upper horizontal guide groove 423, a downwardly inclined guide groove 424, a lower horizontal guide groove 425 and an upwardly inclined guide groove 426 are provided on the inner wall of the adjustment ring 421. One end of the upper horizontal guide groove 423 is connected to one end of the downwardly inclined guide groove 424. The downwardly inclined guide groove 426 is connected to the lower horizontal guide groove 425. The other end of the outer rotating tube 312 is connected to one end of the lower horizontal guide groove 425, the other end of the lower horizontal guide groove 425 is connected to one end of the upward inclined guide groove 426, the other end of the upward inclined guide groove 426 is connected to the other end of the upper horizontal guide groove 423, one side of the upper part of the outer rotating tube 312 is rotatably connected with a lower rotating wheel 427, the lower rotating wheel 427 is rollingly set in the upper horizontal guide groove 423, a plurality of vertical guide columns 428 distributed in a circle are slidably connected to the adjusting ring 421, and the top of the vertical guide column 428 is connected to the bottom of the mounting plate 311.

[0052] Specifically, the outer rotating tube 312 drives the lower rotating wheel 427 to rotate horizontally, so that the lower rotating wheel 427 moves along the upper horizontal guide groove 423, the downward inclined guide groove 424, the lower horizontal guide groove 425 and the upward inclined guide groove 426 in sequence, and enters the upper horizontal guide groove 423 from the upward inclined guide groove 426 again, and in this order, the lower rotating wheel 427 performs a circular motion along the upper horizontal guide groove 423, the downward inclined guide groove 424, the lower horizontal guide groove 425 and the upward inclined guide groove 426 in sequence, so that the height of the adjustment ring 421 is in a circular motion state of rise-pause-fall-pause, and the rack 422 maintains a motion state synchronized with the adjustment ring 421. Example

[0053] Reference Figure 1-15 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a graphene feeding hopper 5 is arranged in the feeding port 2, a screening plate 6 is fixedly connected in the graphene feeding hopper 5, a plurality of screening holes are evenly penetrated on the screening plate 6, two supporting parts 7 are symmetrically fixedly connected to the inside of the feeding port 2, a vibrating screen spring 8 is fixedly connected to the top of the two supporting parts 7, the top of the vibrating screen spring 8 is fixedly connected to the bucket wall of the graphene feeding hopper 5, the bucket outer wall of the graphene feeding hopper 5 is slidably connected to one side of the supporting part 7, the top of the vertical sliding column 313 is rotatably connected to a rotating block 9, the top of the rotating block 9 is in contact with the bucket wall of the graphene feeding hopper 5, and the bottom of the mixing tank 1 is connected to a discharge pipe 10, and a valve is installed on the discharge pipe 10.

[0054] Specifically, the upward movement of the vertical sliding column 313 drives the rotating block 9 to move upward, and the upward movement of the rotating block 9 pushes the graphene feeding hopper 5 to move upward, and the vibration screen spring 8 is elastically stretched. When the rotating block 9 moves downward, the elastic potential energy of the vibration screen spring 8 is released, thereby pulling the graphene feeding hopper 5 to move downward. The vertical sliding column 313 reciprocates up and down to drive the graphene feeding hopper 5 to reciprocate up and down, and then the screening plate 6 in the graphene feeding hopper 5 also reciprocates up and down synchronously. The up and down reciprocating movement of the screening plate 6 improves the screening efficiency, thereby improving the screening efficiency of the graphene powder. Example

[0055] Reference Figure 1-15 , which is a fourth embodiment of the present invention, provides: an operating method of a stirring and mixing device for graphene processing, comprising the following steps,

[0056] When in use, first add liquid surfactant into the annular liquid storage cylinder 411, add graphene powder into the graphene feeding hopper 5, start the driving motor 321, and drive the worm 322 to rotate through the driving motor 321, and the worm 322 drives the worm gear 323 to rotate, and the worm gear 323 drives the outer rotating tube 312 to rotate synchronously, so that the mixing blade 314 is driven to rotate horizontally through the rotation of the outer rotating tube 312 to stir and mix the graphene powder material in the mixing tank 1, and the vertical sliding column 313 is driven to rotate when the outer rotating tube 312 rotates, and the upper rotating wheel 318 is driven to rotate when the vertical sliding column 313 rotates, so that the upper rotating wheel 318 moves along the lifting guide rail 319, so that the vertical sliding column 313 reciprocates up and down while rotating, and when the vertical sliding column 313 moves upward, the lifting spring 324 is elastically compressed, and when the vertical sliding column 313 moves downward, the elastic potential energy of the lifting spring 324 is released.

[0057] The vertical sliding column 313 is moved up and down to drive the connecting rod 317 to move, and the connecting rod 317 drives the eccentric block 316 to move, so that the eccentric block 316 drives the transverse shaft 315 to reciprocate, and the reciprocating rotation of the transverse shaft 315 drives the mixing blade 314 to swing back and forth, and the reciprocating swinging changes the angle of the mixing blade 314, thereby generating different shear forces, thereby achieving more efficient mixing of the graphene powder and the surfactant.

[0058] When the outer rotating tube 312 rotates, it drives the lower rotating wheel 427 to rotate, so that the lower rotating wheel 427 moves along the upper horizontal guide groove 423, the downward inclined guide groove 424, the lower horizontal guide groove 425 and the upward inclined guide groove 426 in sequence, and then enters the upper horizontal guide groove 423 from the upward inclined guide groove 426 again. In this order, the lower rotating wheel 427 performs a circular motion along the upper horizontal guide groove 423, the downward inclined guide groove 424, the lower horizontal guide groove 425 and the upward inclined guide groove 426 in sequence.

[0059] When the lower rotating wheel 427 moves in the upper horizontal guide groove 423, the adjusting ring 421 is kept at the current height. At this time, the inlet and outlet 414 is upward and just corresponds to the liquid adding port 415. The surfactant in the annular liquid storage cylinder 411 flows into the liquid adding port 415 under the action of gravity and further enters into the sealed adding pipe 413, thereby completing the automatic addition of the surfactant into the sealed adding pipe 413. When the lower rotating wheel 427 enters the downward inclined guide groove 424 from the upper horizontal guide groove 423 and moves along the downward inclined guide groove 424, the lower rotating wheel 427 The adjusting ring 421 is squeezed to slide upward along the vertical guide column 428. The upward movement of the adjusting ring 421 drives the rack 422 to move synchronously. The rack 422 drives the gear 417 to rotate the sealing addition pipe 413 until the lower rotating wheel 427 enters the lower horizontal guide groove 425 from the downward inclined guide groove 424. At this time, the inlet and outlet 414 is adjusted from the upward state to the downward state after rotation. At this time, the inlet and outlet 414 just corresponds to the liquid outlet 416, so that the surfactant in the sealing addition pipe 413 passes through the inlet and outlet 414 and the liquid outlet 416. 16 flows out and enters the mixing tank 1, and is sprinkled on the graphene powder in the mixing tank 1. When the lower wheel 427 moves along the lower horizontal guide groove 425, the adjusting ring 421 is kept at the current height, so that the inlet and outlet 414 always keeps corresponding to the liquid outlet 416, and the surfactant in the sealed addition tube 413 is retained for a time. Then the lower wheel 427 continues to move, and enters the upward inclined guide groove 426 from the lower horizontal guide groove 425. When the lower wheel 427 moves along the upward inclined guide groove 426, the lower wheel 427 squeezes the adjusting ring 421 to make It slides downward along the vertical guide column 428, thereby driving the rack 422 to rotate the gear 417 in the opposite direction through the downward movement of the adjustment ring 421, thereby causing the sealed addition tube 413 to rotate in the opposite direction, and then the inlet and outlet 414 is adjusted from the downward state to the upward state again, so that the surfactant in the annular liquid storage cylinder 411 enters the inlet and outlet 414 again from the liquid filling port 415, thereby adding the surfactant to the sealed addition tube 413 again, thereby realizing automatic addition of the surfactant to the sealed addition tube 413 and automatically sprinkling the surfactant into the mixing tank 1.

[0060] The vertical sliding column 313 will make the graphene feeding hopper 5 rise and fall during the lifting process. When the vertical sliding column 313 moves upward, it drives the rotating block 9 to move upward, and when the rotating block 9 abuts against the bucket wall of the graphene feeding hopper 5, due to the rotation coordination of the rotating block 9 and the vertical sliding column 313, the vertical sliding column 313 will not cause unsmooth rotation due to excessive friction when the rotating block 9 abuts against the bucket wall of the graphene feeding hopper 5. When the rotating block 9 moves upward to push the graphene feeding hopper 5 upward, the vibrating screen spring 8 is elastically stretched, and when the rotating block 9 moves downward, the elastic potential energy of the vibrating screen spring 8 is released, thereby pulling the graphene feeding hopper 5 to move upward. The graphene feeding hopper 5 moves downward, thereby driving the graphene feeding hopper 5 to reciprocate up and down through the up and down reciprocating motion of the vertical sliding column 313, and then the screening plate 6 in the graphene feeding hopper 5 also reciprocates up and down synchronously. The up and down reciprocating motion of the screening plate 6 improves the screening efficiency, thereby accelerating the screening of the graphene powder entering the graphene feeding hopper 5, so that the graphene powder particles with a particle size smaller than the sieve holes of the screening plate 6 pass through the screening and fall into the mixing tank 1, while the graphene powder particles larger than the sieve holes of the screening plate 6 are blocked above the screening plate 6, thereby achieving the filtering and blocking of graphene powder particles with larger particle sizes in the graphene powder.

[0061] After the materials in the mixing tank 1 are stirred and mixed uniformly, the valve on the discharge pipe 10 is opened, so that the final material after the graphene and the surfactant in the mixing tank 1 are mixed is discharged through the discharge pipe 10 .

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A stirring and mixing device for graphene processing, comprising a mixing tank (1), wherein the upper portion of the mixing tank (1) is provided with a feeding port (2), characterized in that: The mixing tank (1) is provided with a stirring and mixing unit (3) and a liquid adding unit (4); the stirring and mixing unit (3) comprises a stirring component (31) and a driving component (32): the stirring component (31) is provided in the mixing tank (1); the stirring component (31) comprises a mounting plate (311), the mounting plate (311) is provided on the inner wall of the introduction port (2), an outer rotating tube (312) is rotatably connected to the mounting plate (311), a vertical sliding column (313) is provided in the outer rotating tube (312), the top end of the vertical sliding column (313) slides through the top end of the outer rotating tube (312) and then extends to the outside, a plurality of mixing blades (314) are provided on four sides of the outer rotating tube (312) from top to bottom, and a horizontal rotating shaft (315) is connected to one end of the mixing blade (314) close to the outer rotating tube (312), and the A transverse rotation shaft (315) is rotatably arranged on the outer rotation tube (312), one end of the transverse rotation shaft (315) is extended into the outer rotation tube (312) and is connected to an eccentric block (316), one end of the eccentric block (316) is rotatably connected to a connecting rod (317) via the eccentric shaft, one end of the connecting rod (317) is rotatably connected to the column wall of the vertical sliding column (313) via a pin shaft, an upper rotating wheel (318) is rotatably connected to one side of the top end of the vertical sliding column (313), an inner wall of the delivery port (2) is connected to a lifting guide rail (319) in a circular wave shape via a transverse support rod, and the upper rotating wheel (318) is rotatably arranged on the upper surface of the lifting guide rail (319); The driving component (32) is arranged in the delivery port (2); the driving component (32) comprises a driving motor (321), the driving motor (321) is arranged on the top of the mounting plate (311), the rotating end of the driving motor (321) is fixedly connected to a worm (322), a worm wheel (323) is sleeved on the outer side of the top end of the outer rotating tube (312), the worm wheel (323) is meshed with the worm (322), the outer side of the vertical sliding column (313) is sleeved with a lifting spring (324), the top end of the lifting spring (324) is connected to the inner wall of the outer rotating tube (312), and the bottom end of the lifting spring (324) is connected to the column wall of the vertical sliding column (313); the liquid agent adding unit (4) comprises an adding component (41), the adding component (41) is arranged in the mixing tank (1), and a rotation adjustment component (42) is provided on the adding component (41);The adding component (41) comprises an annular liquid storage cylinder (411), the annular liquid storage cylinder (411) being sleeved on the outer side of the upper part of the mixing tank (1), a plurality of liquid guide shells (412) being arranged in a circumferential array in the mixing tank (1), the top of the liquid guide shell (412) passing through the bottom wall of the annular liquid storage cylinder (411) being communicated with the interior thereof, a sealed adding pipe (413) being arranged in a sealed and rotatable manner in the liquid guide shell (412), an inlet and outlet (414) being provided at the top of the sealed adding pipe (413), and a liquid guide shell (412) being arranged at the upper part thereof. A liquid adding port (415) is provided, a liquid outlet (416) is provided at the bottom of the liquid guiding shell (412), the inlet and outlet (414) are arranged opposite to the liquid adding port (415), one end of the sealed adding pipe (413) passes through the shell wall of the liquid guiding shell (412) and extends to the outside and is connected to a gear (417); the rotating adjustment component (42) comprises an adjustment ring (421), the adjustment ring (421) is coaxially arranged with the outer rotating tube (312), and a plurality of gears (417) are arranged at the bottom of the adjustment ring (421) in a one-to-one correspondence with the gears (417). A rack (422) is provided, the rack (422) meshing with the gear (417), an upper horizontal guide groove (423), a downwardly inclined guide groove (424), a lower horizontal guide groove (425) and an upwardly inclined guide groove (426) are provided on the inner wall of the adjusting ring (421), one end of the upper horizontal guide groove (423) is communicated with one end of the downwardly inclined guide groove (424), the other end of the downwardly inclined guide groove (424) is communicated with one end of the lower horizontal guide groove (425), and the lower horizontal guide groove (425) is communicated with one end of the downwardly inclined guide groove (424). ) is connected to one end of the upwardly inclined guide groove (426), the other end of the upwardly inclined guide groove (426) is connected to the other end of the upper horizontal guide groove (423), a lower rotating wheel (427) is rotatably arranged on one side of the upper part of the outer rotating tube (312), the lower rotating wheel (427) is rollingly arranged in the upper horizontal guide groove (423), a plurality of vertical guide columns (428) distributed in a circumference are slidably arranged on the adjusting ring (421), and the top end of the vertical guide column (428) is connected to the bottom of the mounting plate (311). ; 2. A stirring and mixing device for graphene processing according to claim 1, characterized in that: A graphene feeding hopper (5) is arranged in the feeding port (2), a screening plate (6) is arranged in the graphene feeding hopper (5), a plurality of screening holes are evenly provided on the screening plate (6), two supporting parts (7) are symmetrically arranged on both sides of the inside of the feeding port (2), and a vibrating screen spring (8) is arranged on the top of the two supporting parts (7), and the top of the vibrating screen spring (8) is connected to the bucket wall of the graphene feeding hopper (5), the bucket outer wall of the graphene feeding hopper (5) is slidably arranged on one side of the supporting part (7), and the top of the vertical sliding column (313) is rotatably connected to a rotating block (9), and the top of the rotating block (9) is in contact with the bucket wall of the graphene feeding hopper (5).

3. A stirring and mixing device for graphene processing according to claim 1, characterized in that: A discharge pipe (10) is provided at the bottom of the mixing tank (1), and a valve is installed on the discharge pipe (10).

4. A method for operating a stirring and mixing device for graphene processing, using a stirring and mixing device for graphene processing as claimed in any one of claims 1 to 3, characterized in that: The method comprises the following steps: S1: adding a liquid surfactant into an annular liquid storage cylinder (411), and adding graphene powder into a graphene feeding hopper (5); S2: driving the outer rotating tube (312) to drive the mixing blade (314) to rotate horizontally through the driving component (32), and reciprocatingly lifting and lowering the vertical sliding column (313) to cause the mixing blade (314) to swing back and forth, and stirring and mixing the materials in the annular liquid storage cylinder (411) through the mixing blade (314); driving the adding component (41) to intermittently sprinkle the surfactant into the mixing tank (1) through the rotating adjustment component (42); causing the graphene feeding hopper (5) and the sieve plate (6) to reciprocate up and down through the reciprocating motion of the vertical sliding column (313), thereby accelerating the sieving efficiency of the graphene powder falling on the sieve plate (6); S3: after the mixing is completed, opening the valve on the discharge pipe (10), so that the materials in the mixing tank (1) are discharged through the discharge pipe (10).

5. The method for operating a stirring and mixing device for graphene processing according to claim 4, characterized in that: When the sieve plate (6) sieves the graphene powder, graphene powder particles with a particle size smaller than the sieve holes of the sieve plate (6) pass through the sieve and fall into the mixing tank (1), while graphene powder particles with a particle size larger than the sieve holes of the sieve plate (6) are blocked above the sieve plate (6).

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