A graphene preparation device

Abstract

The invention discloses a graphene preparation device, which belongs to the technical field of graphene preparation, and includes a support plate 1 and a support plate 2 for supporting and fixing, and is characterized in that a ball mill for crushing graphene raw materials is movably installed between the support plate 1 and the support plate 2, a pushing assembly is movably installed in the ball mill, a pulling assembly is arranged in the annular side wall of the ball mill, the pulling assembly is connected to the pushing assembly, a storage box is arranged on the side wall of the support plate 2, and the storage box is arranged at the lower end of the ball mill. The inner wall of the inner shell can be cleaned, the crushing space can be adjusted, the work efficiency can be improved, and the crushed graphene can be dried.

Description

Technical Field

[0001] The invention belongs to the technical field of graphene preparation, and in particular relates to a graphene preparation device. Background Art

[0002] The graphene preparation device is used to prepare graphene, which is a kind of carbon atom in sp 2 The two-dimensional carbon nanomaterials with hexagonal hybrid orbitals and honeycomb lattices have excellent optical, electrical and mechanical properties, and have important application prospects in materials science, micro-nano processing, energy, biomedicine and drug delivery. The common methods for producing graphene powders are mechanical exfoliation, redox method, SiC epitaxial growth method, and the thin film production method is chemical vapor deposition. Among them, mechanical exfoliation is easier to obtain low-cost graphene. This method exfoliates the surface of the graphite sheet layer by layer to obtain graphene sheets, and can prepare graphene that is closest to the ideal state. It is a simple and easy method to prepare high-quality graphene at a low cost. At present, the commonly used methods of mechanical exfoliation include tape method, ultrasonic method, grinding method, etc.

[0003] Mechanical grinding methods such as ball milling mainly use the friction between solid grinding media and graphite to peel graphite into graphene, but this type of preparation device still has many shortcomings: 1. The processing efficiency is low, which affects the working speed; 2. The noise is large, causing serious noise pollution; 3. The impurities retained in the inner shell cannot be automatically cleaned; 4. The crushed graphene cannot be dried in time. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a graphene preparation device.

[0005] The technical solution adopted by the present invention is as follows: a graphene preparation device, comprising a support plate one and a support plate two for supporting and fixing, a ball mill for crushing graphene raw materials is movably installed between the support plate one and the support plate two, a pushing component is movably installed in the ball mill, which can adjust the crushing space of the ball mill and improve work efficiency, a pulling component is provided in the annular side wall of the ball mill, and the pulling component is connected to the pushing component, and the pushing component can provide driving force to the pulling component, and a storage box is provided on the side wall of the support plate two, and the storage box is arranged at the lower end of the ball mill for storing crushed graphene.

[0006] Furthermore, the ball mill includes an outer shell and an inner shell, the outer shell is sleeved on the outside of the inner shell, the outer shell and the inner shell are concentrically arranged, and one end of the outer shell is sealed and connected to one end of the inner shell, a storage cavity is provided between the outer shell and the inner shell, and a plurality of groups of connecting plates for connection and support are installed on the other end of the inner shell, and the plurality of groups of connecting plates are evenly arranged on the other end of the inner shell in a ring-shaped manner and at equal intervals, the connecting plates are connected to the inner side wall of the other end of the outer shell, and a slot is provided between the two groups of connecting plates.

[0007] Preferably, the pulling assembly includes a fixed plate and a pushing plate, both of which are annular structures, the fixed plate is fixedly arranged in the storage cavity and is arranged close to the connecting plate, the pushing plate is movably arranged in the storage cavity, a folding piece 1 is installed between one side of the pushing plate and the bottom wall of the storage cavity, a folding piece 2 is installed between the other side of the pushing plate and the fixed plate, a sealed space is formed between the pushing plate, the bottom wall of the storage cavity and the folding piece 1, and a sealed space is formed between the pushing plate, the fixed plate and the folding piece 2. The design here can reduce the noise generated when the ball mill is working, and the pushing plate A spring is also installed between the other side of the extrusion plate and the fixed plate; two groups of pulleys 1 for guiding are symmetrically installed on the outer wall of the inner shell, and two groups of pulleys 2 for guiding are symmetrically installed on the inner wall of the inner shell. The pulleys 1 and 2 are placed correspondingly and are both arranged in the slots between the connecting plates. Two groups of connecting ropes are symmetrically installed on the pushing plate, and the other ends of the connecting ropes are movably passed through the spring, the fixed plate, and are clamped on the pulleys 1 and 2 in turn, and then connected to the pushing assembly. The connecting ropes are movably and sealedly connected to the fixed plate, similar to the connection relationship between the piston and the syringe.

[0008] The pushing assembly comprises a hydraulic rod and a movable plate, the fixed end of the hydraulic rod is arranged on the inner wall of the other end of the outer shell, the hydraulic rod is arranged between multiple groups of connecting plates, the movable plate is movably arranged in the inner shell, the movable end of the hydraulic rod is connected to the side wall of the movable plate, the other end of the connecting rope is connected to the side wall of the movable plate, and the movable plate is sequentially provided with a connecting chamber 1, a connecting chamber 2 and a connecting chamber 3, the connecting chamber 1 is placed close to the hydraulic rod, an annular bag 1 and an annular bag 2 are installed on the annular outer wall of the movable plate, the annular bag 1 is connected with the connecting chamber 1, and the annular bag 2 is connected with the connecting chamber 3, and multiple groups of vents for gas circulation are also arranged on the annular outer wall of the movable plate, the multiple groups of vents are evenly arranged on the annular outer wall of the movable plate in annular shape and at equal intervals, and the vents are arranged between the annular bag 1 and the annular bag 2, the vents are connected with the connecting chamber 2, and cleaning parts are provided on the outer sides of the annular bag 1 and the annular bag 2 to facilitate cleaning of the inner wall of the inner shell.

[0009] Among them, connecting tube 1 and connecting tube 2 are symmetrically installed on the other end of the inner shell, one end of the connecting tube 1 and one end of the connecting tube 2 are connected to the sealed space in the folding part 2 after passing through the fixed plate, the other end of the connecting tube 1 is connected to folding tube 1, and the folding tube 1 is connected to the connecting cavity 1, the other end of the connecting tube 2 is connected to folding tube 2, and the folding tube 2 is connected to the connecting cavity 2, and connecting tube 3 is installed between the connecting cavity 1 and the connecting cavity 3, and control valves are provided in the connecting tubes 1, 2 and 3 to control whether the gas circulates.

[0010] As a preferred embodiment of the present invention, a ventilation cavity four is provided in the bottom wall of the storage box, and a plurality of exhaust holes for gas circulation are provided in the bottom wall of the storage box, and the exhaust holes are connected with the ventilation cavity four through-holes, a pad is provided in the storage box, and a plurality of blowing holes for gas circulation are provided on the pad, and the diameter of the blowing holes is very small to prevent graphene from falling, and an opening and closing door two is provided on the upper wall of the storage box.

[0011] Furthermore, a temporary storage chamber is provided on the annular side wall of the ball mill, and a filter screen is provided on the upper wall of the temporary storage chamber for filtering the crushed graphene. An opening and closing door 1 is installed on the outer wall of the temporary storage chamber to facilitate the discharge of the internal graphene. The opening and closing door 2 is arranged at the lower end of the opening and closing door 1. When the opening and closing door 1 and the opening and closing door 2 are opened, the graphene in the temporary storage chamber falls onto the pad of the storage box.

[0012] Preferably, a ventilation cavity 1 is provided on the inner wall of the ball mill, a connecting piece is installed between the ball mill and the support plate 2, the ball mill is movably connected to the support plate 2 through the connecting piece, a ventilation cavity 2 is provided at the center of the connecting piece, a ventilation cavity 3 is provided in the support plate 2, one end of the ventilation cavity 1 is connected to the sealed space in the folding piece 1, one end of the ventilation cavity 2 is connected to the other end of the ventilation cavity 1, one end of the ventilation cavity 3 is connected to the other end of the ventilation cavity 2, and the ventilation cavity 4 is connected to the other end of the ventilation cavity 3;

[0013] After the folding part 1 is squeezed, the internal gas enters the ventilation cavity 4 through the ventilation cavity 1, the ventilation cavity 2 and the ventilation cavity 3, and is discharged into the storage box from the exhaust hole. The gas there dries the graphene on the upper wall of the pad through the blowing holes of the pad.

[0014] Among them, a motor seat is installed on one side wall of the support plate, a motor is installed on the motor seat, the motor is connected to the center of the side wall of the ball mill through a bearing, the motor drives the ball mill to rotate, and multiple groups of balls for crushing are arranged in the inner shell.

[0015] Furthermore, an air inlet hole 1 is provided on the bottom wall of the storage box, and the air inlet hole 1 is connected with the ventilation cavity 4. An air outlet hole is provided on the upper wall of the storage box. An air inlet hole 2 is provided on the outer shell, and the air inlet hole 2 is connected with the sealed space in the folding part 2. One-way valves are provided in the air inlet hole 1, the air inlet hole 2 and the air outlet hole. The air inlet hole 1 can control the external gas to enter the ventilation cavity 4, the air inlet hole 2 can control the external gas to enter the sealed space in the folding part 2, and the air outlet can control the discharge of the internal gas of the storage box. A pressure sensor is provided in the connecting cavity 1 for detecting the air pressure in the connecting cavity 1.

[0016] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0017] (1) The gas inside the folding member 2 can enter the connecting chamber 1 through the connecting tube 1, and the gas in the connecting chamber 1 enters the annular capsule 1 and the annular capsule 2. The cleaning members on the annular capsule 1 and the annular capsule 2 move in accordance with the inner wall of the inner shell, and can clean the inner wall of the inner shell.

[0018] (2) During the crushing process, the moving plate can adjust the crushing space of the graphene in the inner shell and improve the crushing efficiency.

[0019] (3) The gas inside the folding part 2 can also enter the connecting cavity 2 through the connecting pipe 2 and be discharged through the vent hole. During the movement, the annular vent hole sprays the gas onto the inner wall of the inner shell, thereby blowing and cleaning the graphene powder on the inner wall of the inner shell.

[0020] (4) The internal gas of folding part 1 enters into ventilation cavity 4 through ventilation cavity 1, ventilation cavity 2 and ventilation cavity 3, and is discharged into the storage box through the exhaust hole. The gas there dries the graphene through the blowing hole of the pad.

[0021] (5) There is a sealed space between the pushing plate, the bottom wall of the storage chamber and the folding member 1, and there is a sealed space between the pushing plate, the fixed plate and the folding member 2. The design of this space can reduce the noise generated when the ball mill is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0023] Figure 1 A schematic structural diagram of a graphene preparation device proposed by the present invention;

[0024] Figure 2 This is a front cross-sectional view of a graphene preparation device proposed by the present invention;

[0025] Figure 3A bottom cross-sectional view of a graphene preparation device proposed by the present invention;

[0026] Figure 4 A diagram showing the positional relationship between the outer shell and the inner shell proposed by the present invention;

[0027] Figure 5 for Figure 2 A local enlarged view of point A;

[0028] Figure 6 for Figure 2 A local enlarged view of point B;

[0029] Figure 7 for Figure 2 A local enlarged view of point C;

[0030] Figure 8 for Figure 2 A local enlarged view of point E;

[0031] Fig. 9 for Figure 2 A local enlarged view of point F;

[0032] Fig.10 for Figure 3 A local enlarged view of G;

[0033] Fig.11 for Figure 3 A local enlarged view of point H.

[0034] In the accompanying drawings: 1. Support plate 1, 2. Support plate 2, 3. Ball mill, 4. Pushing assembly, 5. Pulling assembly, 6. Storage box, 7. Outer shell, 8. Inner shell, 9. Storage chamber, 10. Connecting plate, 11. Slot, 12. Fixed plate, 13. Pushing plate, 14. Folding piece 1, 15. Folding piece 2, 16. Spring, 17. Pulley 1, 18. Pulley 2, 19. Connecting rope, 20. Hydraulic rod, 21. Moving plate, 22. Connecting chamber 1, 23. Connecting chamber 2, 24. Connecting chamber 3, 25. Annular capsule 1, 26. Annular capsule Shaped bag two, 27, vent hole, 28, connecting tube one, 29, connecting tube two, 30, folding tube one, 31, folding tube two, 32, connecting tube three, 33, ventilation cavity four, 34, exhaust hole, 35, pad, 36, blowing hole, 37, opening and closing door two, 38, temporary storage cavity, 39, filter net, 40, opening and closing door one, 41, ventilation cavity one, 42, connecting piece, 43, ventilation cavity two, 44, ventilation cavity three, 45, motor seat, 46, motor, 47, sphere, 48, air inlet hole one, 49, air outlet hole, 50, air inlet hole two. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] like Figure 1-Figure 11 As shown, a graphene preparation device includes a support plate 1 and a support plate 2 for supporting and fixing, a ball mill 3 for crushing graphene raw materials is movably installed between the support plate 1 and the support plate 2, a pushing component 4 is movably installed in the ball mill 3, and the crushing space of the ball mill 3 can be adjusted to improve the working efficiency, a pulling component 5 is arranged in the annular side wall of the ball mill 3, and the pulling component 5 is connected to the pushing component 4, and the pushing component 4 can provide driving force for the pulling component 5, and a storage box 6 is arranged on the side wall of the support plate 2, and the storage box 6 is arranged on the ball mill 3 The lower end of the ball mill 3 is used to store the crushed graphene; the ball mill 3 includes an outer shell 7 and an inner shell 8, the outer shell 7 is sleeved on the outside of the inner shell 8, the outer shell 7 and the inner shell 8 are concentrically arranged, and one end of the outer shell 7 is sealed and connected to one end of the inner shell 8, a storage cavity 9 is provided between the outer shell 7 and the inner shell 8, and a plurality of groups of connecting plates 10 for connection and support are installed at the other end of the inner shell 8, and the plurality of groups of connecting plates 10 are evenly arranged at the other end of the inner shell 8 in a ring shape with equal intervals, the connecting plates 10 are connected to the inner side wall of the other end of the outer shell 7, and a slot 11 is provided between the two groups of connecting plates 10.

[0038] The pulling assembly 5 includes a fixed plate 12 and a pushing plate 13, both of which are annular structures. The fixed plate 12 is fixedly arranged in the storage cavity 9 and is arranged close to the connecting plate 10. The pushing plate 13 is movably arranged in the storage cavity 9. A folding piece 14 is installed between one side of the pushing plate 13 and the bottom wall of the storage cavity 9, and a folding piece 2 15 is installed between the other side of the pushing plate 13 and the fixed plate 12. There is a sealed space between the pushing plate 13, the bottom wall of the storage cavity 9 and the folding piece 14, and there is a sealed space between the pushing plate 13, the fixed plate 12 and the folding piece 2 15. The design here can reduce the noise generated when the ball mill 3 is working. Processing, a spring 16 is also installed between the other side of the pushing plate 13 and the fixed plate 12; two groups of pulleys 17 for guiding are symmetrically installed on the outer wall of the inner shell 8, and two groups of pulleys 18 for guiding are symmetrically installed on the inner wall of the inner shell 8. The pulleys 17 and 18 are placed correspondingly and are both arranged in the slots 11 between the connecting plates 10. Two groups of connecting ropes 19 are symmetrically installed on the pushing plate 13, and the other ends of the connecting ropes 19 are movably penetrated through the spring 16, the fixed plate 12, and are clamped on the pulleys 17 and 18 in sequence, and then connected to the pushing component 4, and the connecting ropes 19 are movably sealed and connected to the fixed plate 12;

[0039] It should be noted that when the pushing assembly 4 moves along the inner wall of the inner shell 8, it drives the connecting rope 19 to move. The connecting rope 19 passes through pulley 2 18, pulley 1 17, and fixed plate 12, and then drives the pushing plate 13 to move toward the fixed plate 12. During the movement, the pushing plate 13 squeezes the folding piece 2 15, and the gas in the folding piece 2 15 is discharged. At the same time, the pushing plate 13 stretches the folding piece 14, and the external gas enters the folding piece 14.

[0040] The pushing assembly 4 includes a hydraulic rod 20 and a movable plate 21. The fixed end of the hydraulic rod 20 is arranged on the inner wall of the other end of the outer shell 7. The hydraulic rod 20 is arranged between multiple groups of connecting plates 10. The movable plate 21 is movably arranged in the inner shell 8. The movable end of the hydraulic rod 20 is connected to the side wall of the movable plate 21. The other end of the connecting rope 19 is connected to the side wall of the movable plate 21. The movable plate 21 is sequentially provided with a connecting cavity 1 22, a connecting cavity 23 and a connecting cavity 3 24. The connecting cavity 1 22 is placed close to the hydraulic rod 20. An annular capsule 1 25 and an annular capsule 2 26 are installed on the annular outer wall of the movable plate 21. The annular capsule 1 25 is connected to the connecting chamber 1 22, and the annular capsule 26 is connected to the connecting chamber 3 24. A plurality of groups of air vents 27 for gas circulation are also provided on the annular outer wall of the movable plate 21. The plurality of groups of air vents 27 are evenly arranged on the annular outer wall of the movable plate 21 in a circular shape at equal intervals, and the air vents 27 are arranged between the annular capsule 1 25 and the annular capsule 2 26, and the air vents 27 are connected to the connecting chamber 2 23.

[0041] In this embodiment, a connecting tube 1 28 and a connecting tube 2 29 are symmetrically installed on the other end of the inner shell 8. One end of the connecting tube 1 28 and one end of the connecting tube 2 29 are connected to the sealed space in the folding member 2 15 after passing through the fixing plate 12. The other end of the connecting tube 1 28 is connected to a folding tube 1 30, and the folding tube 1 30 is connected to the connecting cavity 1 22. The other end of the connecting tube 2 29 is connected to a folding tube 2 31, and the folding tube 2 31 is connected to the connecting cavity 23. A connecting pipe three 32 is installed between 2 and the connecting chamber three 24, and control valves are provided in the connecting pipe one 28, the connecting pipe two 29 and the connecting pipe three 32 to control whether the gas circulates; when the control valves in the connecting pipe one 28, the connecting pipe two 29 and the connecting pipe three 32 are all opened, the gas inside the folding member two 15 is compressed, enters the connecting chamber one 22 through the connecting pipe one 28, enters the connecting chamber two 23 through the connecting pipe two 29, and the gas in the connecting chamber one 22 enters the connecting chamber three 24 through the connecting pipe three 32.

[0042] A ventilation cavity 4 33 is provided in the bottom wall of the storage box 6, and a plurality of exhaust holes 34 for gas circulation are provided in the bottom wall of the storage box 6. The exhaust holes 34 are connected to the ventilation cavity 4 33. A pad 35 is provided in the storage box 6, and a plurality of blowing holes 36 for gas circulation are provided on the pad 35. The diameter of the blowing holes 36 is very small to prevent the graphene from falling. An opening and closing door 2 37 is provided on the upper wall of the storage box 6.

[0043] A temporary storage chamber 38 is provided on the annular side wall of the ball mill 3, and a filter screen 39 is provided on the upper wall of the temporary storage chamber 38 for filtering the crushed graphene. An opening and closing door 1 40 is installed on the outer wall of the temporary storage chamber 38 to facilitate the discharge of the graphene inside. The opening and closing door 2 37 is provided at the lower end of the opening and closing door 1 40. When the opening and closing door 1 40 and the opening and closing door 2 37 are opened, the graphene in the temporary storage chamber 38 falls onto the pad 35 of the storage box 6.

[0044] The inner wall of the ball mill 3 is provided with a ventilation cavity 1 41, a connecting piece 42 is installed between the ball mill 3 and the support plate 2 2, the ball mill 3 is movably connected to the support plate 2 2 through the connecting piece 42, a ventilation cavity 2 43 is provided at the center of the connecting piece 42, a ventilation cavity 3 44 is provided in the support plate 2 2, one end of the ventilation cavity 1 41 is connected to the sealed space in the folding piece 1 14, one end of the ventilation cavity 2 43 is connected to the other end of the ventilation cavity 1 41, one end of the ventilation cavity 3 44 is connected to the other end of the ventilation cavity 2 43, and the ventilation cavity 433 is connected to the other end of the ventilation cavity 3 44;

[0045] It should be noted that after the folding part 14 is squeezed, the internal gas enters into the ventilation cavity 4 33 through the ventilation cavity 1 41, the ventilation cavity 2 43, and the ventilation cavity 3 44, and is discharged into the storage box 6 from the exhaust hole 34, where the gas dries the graphene on the upper wall of the pad 35 through the blowing hole 36 of the pad 35.

[0046] In this embodiment, a motor seat 45 is installed on the side wall of the support plate 1, and a motor 46 is installed on the motor seat 45. The motor 46 is connected to the center of the side wall of the ball mill 3 through a bearing. The motor 46 drives the ball mill 3 to rotate when it works. A plurality of groups of balls 47 for crushing are provided in the inner shell 8; an air inlet 48 is provided on the bottom wall of the storage box 6, and the air inlet 48 is connected to the ventilation cavity 433; an air outlet 49 is provided on the upper wall of the storage box 6, and an air inlet 49 is provided on the outer shell 7. 50, the air inlet hole 2 50 is connected with the sealed space in the folding part 2 15, and the air inlet hole 1 48, the air inlet hole 2 50 and the air outlet hole 49 are all provided with a one-way valve, the air inlet hole 1 48 can control the external gas to enter the ventilation cavity 4 33, the air inlet hole 2 50 can control the external gas to enter the sealed space in the folding part 2 15, the air outlet hole 49 can control the discharge of the internal gas of the storage box 6, and a pressure sensor is provided in the connecting cavity 1 22 for detecting the air pressure in the connecting cavity 1 22.

[0047] The specific usage is as follows:

[0048] Initially, the hydraulic rod 20 drives the moving plate 21 to be located at one end of the inner shell 8 away from the temporary storage chamber 38, and the temporary storage chamber 38 is located directly above the ball mill 3. The opening and closing door 40 and the filter screen 39 are opened. After the graphene to be crushed is placed in the ball mill 3, the filter screen 39 and the opening and closing door 40 are closed. The motor 46 works to drive the ball mill 3 to rotate, and the ball mill 3 drives the internal graphene and the ball 47 to rotate. The ball 47 crushes the graphene while rotating. During the processing, the crushed graphene falls from the filter screen 39 into the temporary storage chamber 38. At the same time, the hydraulic rod 20 works to push the moving plate 21 to move away from the fixed plate 12, and the moving plate 21 drives the connecting rope 19 to move. The connecting rope 19 passes through the pulley 2. 18, pulley 17, fixed plate 12 drives pushing plate 13 to move in the direction close to fixed plate 12, spring 16 is compressed, and when moving, pushing plate 13 squeezes folding piece 2 15, at this time, control valve in connecting pipe 1 28 is opened, control valves in connecting pipe 3 32 and connecting pipe 2 29 are closed, gas inside folding piece 2 15 is compressed, and enters into connecting cavity 1 22 through connecting pipe 1 28, gas in connecting cavity 1 22 enters into annular capsule 1 25, annular capsule 1 25 bulges, cleaning piece thereon is arranged in contact with inner wall of inner shell 8, pressure sensor is used to detect pressure in connecting cavity 1 22, when pressure reaches a certain value, this data is fed back to controller, controller controls connecting pipe 1 28 The control valve is closed, and the control valve in the connecting pipe 29 is opened, and the gas inside the folding piece 2 15 enters the connecting chamber 2 23 through the connecting pipe 29 and is discharged through the vent hole 27. During the movement, the annular vent hole 27 sprays the gas on the inner wall of the inner shell 8, and the graphene powder on the inner wall of the inner shell 8 is blown and cleaned. At the same time, the cleaning piece on the bulging annular capsule 1 25 cleans the inner wall of the inner shell 8 again. When a certain distance is reached, the control valve in the connecting pipe 29 is closed, and the control valves in the connecting pipe 1 28 and the connecting pipe 3 32 are opened. The gas in the folding piece 2 15 enters the ventilation chamber 3 44 through the ventilation chamber 1 41 and the connecting pipe 3 32, and the gas in the connecting chamber 3 24 enters the annular capsule 1 In the second 26, the annular capsule 26 is bulged, and the cleaning piece thereon is arranged in contact with the inner wall of the inner shell 8. The pressure sensor is used to detect the pressure in the connecting cavity 1 22. When the pressure reaches a certain value, the data is fed back to the controller, and the controller controls the control valves in the connecting pipe 1 28 and the connecting pipe 3 32 to close, and at the same time the hydraulic rod 20 stops working. The graphene and the sphere 47 in the inner shell 8 are crushed in the space between the moving plate 21 and the bottom wall of the inner shell 8, and the space there is reduced, thereby improving the crushing efficiency. In this process, the pushing plate 13 stretches the folding piece 14, and the external gas passes through the air inlet 1 48 and passes through the ventilation cavity 4 33, the ventilation cavity 3 44, the ventilation cavity 2 43, and the ventilation cavity 1 41 in sequence and then enters the folding piece 14.

[0049] After the crushing is completed, the motor 46 stops working, and the temporary storage chamber 38 is set just above the storage box 6. After the opening and closing door 1 40 and the opening and closing door 2 37 are opened, the graphene in the temporary storage chamber 38 falls on the pad 35 of the storage box 6, and then the opening and closing door 2 37 and the opening and closing door 1 40 are closed. The hydraulic rod 20 drives the moving plate 21 to move toward the direction close to the fixed plate 12. Under the action of the spring 16, the pushing plate 13 is pushed to move away from the fixed plate 12, and the external air enters the folding member 2 1 through the air inlet 2 50. 5, during the movement, the annular capsule 1 25 and the annular capsule 2 26 clean the inner wall of the inner shell 8 again, and the pushing plate 13 squeezes the folding member 14. After the folding member 14 is squeezed, the internal gas enters the ventilation cavity 4 33 through the ventilation cavity 1 41, the ventilation cavity 2 43, and the ventilation cavity 3 44, and is discharged from the exhaust hole 34 to the storage box 6. The gas there passes through the blowing hole 36 of the pad 35 to dry the graphene on the upper wall of the pad 35, and the gas in the storage box 6 is discharged through the exhaust hole 49.

[0050] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural modes and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they shall all fall within the scope of protection of the present invention.

Claims

1. A graphene preparation device, comprising a support plate 1 and a support plate 2 for supporting and fixing, characterized in that: A ball mill for crushing graphene raw materials is movably installed between the support plate 1 and the support plate 2, a pushing assembly is movably installed in the ball mill, a pulling assembly is arranged in the annular side wall of the ball mill, the pulling assembly is connected to the pushing assembly, a storage box is arranged on the side wall of the support plate 2, and the storage box is arranged at the lower end of the ball mill; The ball mill comprises an outer shell and an inner shell, wherein the outer shell is sleeved on the outer side of the inner shell, the outer shell and the inner shell are concentrically arranged, and one end of the outer shell is sealed and connected to one end of the inner shell, a storage cavity is arranged between the outer shell and the inner shell, and a plurality of groups of connecting plates for connection and support are installed at the other end of the inner shell, and the plurality of groups of connecting plates are evenly arranged at equal intervals in a ring shape on the other end of the inner shell, and the connecting plates are connected to the inner side wall of the other end of the outer shell, and a slot is arranged between the two groups of connecting plates; The pulling assembly comprises a fixed plate and a pushing plate, both of which are annular structures, the fixed plate is fixedly arranged in the storage cavity and is arranged close to the connecting plate, the pushing plate is movably arranged in the storage cavity, a folding piece 1 is installed between one side of the pushing plate and the bottom wall of the storage cavity, a folding piece 2 is installed between the other side of the pushing plate and the fixed plate, a sealed space is formed between the pushing plate, the bottom wall of the storage cavity and the folding piece 1, and a sealed space is formed between the pushing plate, the fixed plate and the folding piece 2. A spring is also installed between the other side of the pushing plate and the fixed plate; two groups of pulleys 1 for guiding are symmetrically installed on the outer wall of the inner shell, and two groups of pulleys 2 for guiding are symmetrically installed on the inner wall of the inner shell, the pulleys 1 and the pulleys 2 are placed correspondingly and are arranged in the slots between the connecting plates, and two groups of connecting ropes are symmetrically installed on the pushing plate, and the other ends of the connecting ropes are movably penetrated through the spring, the fixed plate, and are clamped on the pulleys 1 and the pulleys 2 in sequence, and then connected to the pushing assembly; The pushing assembly includes a hydraulic rod and a movable plate, the fixed end of the hydraulic rod is arranged on the inner wall of the other end of the outer shell, the hydraulic rod is arranged between multiple groups of connecting plates, the movable plate is movably arranged in the inner shell, the movable end of the hydraulic rod is connected to the side wall of the movable plate, the other end of the connecting rope is connected to the side wall of the movable plate, and the movable plate is sequentially provided with a connecting chamber 1, a connecting chamber 2 and a connecting chamber 3, an annular bag 1 and an annular bag 2 are installed on the annular outer wall of the movable plate, the annular bag 1 is connected with the connecting chamber 1, and the annular bag 2 is connected with the connecting chamber 3, and a plurality of groups of ventilation holes for gas circulation are also arranged on the annular outer wall of the movable plate, and the plurality of ventilation holes are evenly arranged on the annular outer wall of the movable plate in a circular shape with equal intervals, and the ventilation holes are arranged between the annular bag 1 and the annular bag 2, and the ventilation holes are connected with the connecting chamber 2.

2. The graphene preparation device according to claim 1, characterized in that: The other end of the inner shell is symmetrically equipped with connecting pipe 1 and connecting pipe 2, one end of the connecting pipe 1 and one end of the connecting pipe 2 pass through the fixed plate and are connected to the sealed space in the folding part 2, the other end of the connecting pipe 1 is connected to folding pipe 1, and the folding pipe 1 is connected to the connecting cavity 1, the other end of the connecting pipe 2 is connected to folding pipe 2, and the folding pipe 2 is connected to the connecting cavity 2, a connecting pipe 3 is installed between the connecting cavity 1 and the connecting cavity 3, and control valves are provided in the connecting pipe 1, the connecting pipe 2 and the connecting pipe 3.

3. The graphene preparation device according to claim 2, characterized in that: A ventilation cavity four is provided in the bottom wall of the storage box, and a plurality of exhaust holes for gas circulation are provided in the bottom wall of the storage box, and the exhaust holes are connected with the ventilation cavity four through-holes, a pad is provided in the storage box, and a plurality of blowing holes for gas circulation are provided on the pad, and an opening and closing door two is provided on the upper wall of the storage box.

4. The graphene preparation device according to claim 3, characterized in that: A temporary storage chamber is provided on the annular side wall of the ball mill, a filter screen is provided on the upper wall of the temporary storage chamber, an opening and closing door 1 is installed on the outer wall of the temporary storage chamber, and the opening and closing door 2 is arranged at the lower end of the opening and closing door 1.

5. The graphene preparation device according to claim 4, characterized in that: A ventilation cavity 1 is provided on the inner wall of the ball mill, a connecting piece is installed between the ball mill and the support plate 2, the ball mill is movably connected to the support plate 2 through the connecting piece, a ventilation cavity 2 is provided at the center of the connecting piece, a ventilation cavity 3 is provided in the support plate 2, one end of the ventilation cavity 1 is through-connected with the sealed space in the folding piece 1, one end of the ventilation cavity 2 is through-connected with the other end of the ventilation cavity 1, one end of the ventilation cavity 3 is through-connected with the other end of the ventilation cavity 2, and the ventilation cavity 4 is through-connected with the other end of the ventilation cavity 3.

6. The graphene preparation device according to claim 5, characterized in that: A motor seat is installed on one side wall of the support plate, a motor is installed on the motor seat, the motor is connected to the center of the side wall of the ball mill through a bearing, the motor drives the ball mill to rotate, and a plurality of groups of balls for crushing are arranged in the inner shell.

7. The graphene preparation device according to claim 6, characterized in that: The bottom wall of the storage box is provided with an air inlet hole 1, and the air inlet hole 1 is connected to the ventilation cavity 4. The upper wall of the storage box is provided with an air outlet hole. The outer shell is provided with an air inlet hole 2, and the air inlet hole 2 is connected to the sealed space in the folding part 2. One-way valves are provided in the air inlet hole 1, the air inlet hole 2 and the air outlet hole.

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