A graphene grinding and screening device

Abstract

A graphene grinding and screening device disclosed in the present invention belongs to the technical field of graphene preparation. A limit assembly and a downward moving assembly are installed on the inner side wall of the protection box. A crushing assembly is also installed in the protection box. The upper end of the crushing assembly is arranged on the upper wall of the protection box, and the lower end of the crushing assembly is movably arranged in the limit assembly. A regulating assembly is installed on the upper wall of the protection box. One end of the regulating assembly is movably connected to the crushing assembly, and the other end is connected to the limit assembly and the downward moving assembly. A stirring assembly is also installed in the protection box, and the stirring assembly is movably connected to the crushing assembly. The receiving part swings to shake the graphene raw material, which is convenient for the discharge of the crushed graphene raw material in the receiving part and reduces the risk of the through hole being blocked. The large-particle graphene raw material that needs to be crushed is arranged at the upper end of the receiving part for easy crushing. The graphene raw materials that need to be mixed are sequentially transported to the stirring box in small quantities through the driving frame and the transport cavity for easy mixing.

Description

Technical Field

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

[0002] Graphene is a two-dimensional material with a honeycomb hexagonal planar structure formed by sp2 hybridization of carbon atoms. It has good electrical and optical properties, mechanical properties, thermal conductivity and extremely high charge carrier mobility, as well as strong mechanical strength and flexibility. It has broad application prospects in electronics, magnetism, optics, biology, etc. Graphene is usually prepared by mechanical exfoliation, chemical exfoliation or chemical vapor deposition, and needs to be ground and stirred during the graphene processing;

[0003] Existing graphene grinding and exfoliation equipment has low grinding efficiency when grinding graphite raw materials, and the screen may be blocked, resulting in a decrease in production capacity; graphene needs to be stirred after grinding, but during the stirring and mixing process, the graphene slurry is easily stirred unevenly, and the grinding and stirring processes are usually separated, which increases the difficulty of operation. 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 grinding and screening device, which at least partially solves the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: a graphene grinding and screening device, comprising a protective box for receiving and protecting, a limiting assembly and a downward moving assembly being installed on the inner side wall of the protective box, the downward moving assembly being arranged at the lower end of the limiting assembly, a crushing assembly being also installed in the protective box, the upper end of the crushing assembly being arranged on the upper wall of the protective box, the lower end of the crushing assembly being movably arranged in the limiting assembly, a regulating assembly being installed on the inner upper wall of the protective box, one end of the regulating assembly being movably connected to the crushing assembly, the other end of the regulating assembly being connected to the limiting assembly and the downward moving assembly, a stirring assembly being also installed in the protective box, the lower end of the stirring assembly being arranged on the inner bottom wall of the protective box, the upper end being arranged on the upper wall of the protective box, the stirring assembly being movably connected to the crushing assembly.

[0006] Furthermore, the crushing assembly includes a motor and a gear 1, the motor is arranged on the upper wall of the protective box, the gear 1 is movably arranged on the upper wall inside the protective box, the output shaft end of the motor is connected to the center of the gear 1, the protective box supports and fixes the motor and the gear 1, the gear 1 is provided with a slide groove 1, a connecting groove and a slide groove 2, the slide groove 1 and the slide groove 2 are both arc structures, one end of the connecting groove is connected with the slide groove 1, and the other end of the connecting groove is connected with the slide groove 2, one end of the regulating assembly is movably clamped in the slide groove 1, the connecting groove and the slide groove 2, and the radius of the slide groove 2 is greater than the radius of the slide groove 1.

[0007] Preferably, the regulating component includes a driving rod, which is movably mounted on the inner upper wall of the protective box, a sliding rod 1 is movably mounted on one end of the driving rod, and a sliding rod 2 is movably mounted on the other end of the driving rod, and the sliding rod 1 is movably clamped in the sliding groove 1, the connecting groove and the sliding groove 2. The regulating component also includes a limiting plate 2, the limiting plate 2 is arranged on the inner upper wall of the protective box, a sliding plate is movably clamped in the limiting plate 2, a sliding groove 3 is provided at one end of the sliding plate, the sliding rod 2 is movably clamped in the sliding groove 3, a connecting plate is installed at the other end of the sliding plate, a mounting plate 1 and a mounting plate 2 are installed at the lower end of the connecting plate, and the mounting plate 1 is arranged at the upper end of the mounting plate 2.

[0008] Among them, the limiting assembly includes a fixed plate, a limiting plate 1 and a protective member. The fixing plates are provided with two groups. The two groups of fixing plates are symmetrically placed on the inner wall of the protective box with the center line of the protective box as the symmetry axis. The protective box supports and fixes the fixed plate. The limiting plate 1 is provided on the side wall of the fixed plate. A slide plate is movably clamped in the limiting plate 1. Both ends of the protective member are respectively connected to the slide plate. Connecting rods for support are symmetrically installed on the inner wall of the protective member. A receiving member is movably installed on the connecting rod. The mounting plate 1 is connected to the outer wall of the protective member. A through hole is provided at the lower end of the receiving plate to facilitate the discharge of the crushed graphene raw materials.

[0009] Among them, an adsorption component 1 is installed on the upper wall of the receiving component, and an adsorption component 2 is installed on the upper wall of the protective box. The adsorption component 1 and the adsorption component 2 are placed opposite to each other. A magnetic component 1 is installed on the adsorption component 1, and a magnetic component 2 is installed on the magnetic component 2. The magnetic properties of the magnetic component 1 and the magnetic component 2 are different.

[0010] As a preferred embodiment of the present invention, the downward moving assembly includes an inclined plate, which is arranged on the inner wall of the protection box, and the protection box supports the inclined plate. The downward moving assembly also includes a hydraulic rod 2, and the fixed end of the hydraulic rod 2 is arranged on the mounting plate 2. The movable end of the hydraulic rod 2 is equipped with a driving frame, and the driving frame is movably arranged on the upper wall of the inclined plate. A plurality of transport cavities for transportation are arranged in the driving frame, and the transport cavities penetrate the driving frame. The inclined plate and the driving frame are arranged at the lower end of the receiving member.

[0011] Wherein, a hydraulic rod 1 is installed at the center position of the gear 1, a breaking rod is installed at the movable end of the hydraulic rod 1, a breaking piece is installed at the lower end of the breaking rod, and the breaking piece is movably arranged in the receiving piece.

[0012] Furthermore, the stirring assembly includes gear 2, which is movably arranged on the upper wall of the protective box, and gear 1 and gear 2 are meshingly connected. The stirring assembly also includes a stirring box, which is arranged on the bottom wall of the protective box. A stirring rod is installed at the center of gear 2, and the lower end of the stirring rod is movably arranged in the stirring box. A stirring net is installed at the lower end of the stirring rod, and the stirring net is arranged in the stirring box. The lower end of the inclined plate is arranged at the upper end of the stirring box.

[0013] Preferably, a pump is provided on the upper wall of the protection box, a feed pipe is installed at the inlet of the pump, and a discharge pipe is installed at the outlet, the discharge pipe is connected to the mixing box, and the liquid to be mixed is extracted from the feed port and discharged into the mixing box through the discharge port.

[0014] Furthermore, a discharge pipe is installed on the side wall of the mixing box to facilitate the discharge of the mixed liquid in the mixing box, and a raw material inlet is provided on the upper wall of the protection box to facilitate the entry of graphene raw materials.

[0015] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0016] (1) When the receiving part drives the adsorption part 1 on the upper wall to move in the opposite direction toward the adsorption part 2, the receiving part rotates with the connecting rod as the rotation center, and the receiving part is arranged in an inclined state; the protective part drives the receiving part away from the adsorption part 2, and the receiving part rotates in the opposite direction. Through this movement, the receiving part swings, and the graphene raw material placed inside is shaken, so as to facilitate the discharge of the crushed graphene raw material in the receiving part and reduce the risk of the through hole being blocked.

[0017] (2) When the receiving member swings, large particles of graphene raw materials that need to be crushed are placed at the upper end of the receiving member, making it easier to crush them.

[0018] (3) After the crushed graphene raw materials in the receiving part fall onto the inclined plate, the crushed graphene raw materials to be mixed are transported to the mixing box in small quantities in sequence through the driving frame and the transport cavity for easy mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of a graphene grinding and screening device proposed by the present invention;

[0021] Figure 2 A partial structural schematic diagram of a graphene grinding and screening device proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the downward moving assembly proposed by the present invention;

[0023] Figure 4 for Figure 3 A local enlarged view of point A;

[0024] Figure 5 This is a schematic diagram of the structure of the control component proposed in the present invention;

[0025] Figure 6 A cross-sectional view of a graphene grinding and screening device proposed by the present invention Figure 1 ;

[0026] Figure 7 A cross-sectional view of a graphene grinding and screening device proposed by the present invention Figure 2 .

[0027] In the attached drawings: 1. protective box, 2. limit assembly, 3. downward assembly, 4. crushing assembly, 5. regulating assembly, 6. stirring assembly, 7. motor, 8. gear 1, 9. slide 1, 10. connecting groove, 11. slide 2, 12. drive rod, 13. sliding rod 1, 14. sliding rod 2, 15. limit plate 2, 16. sliding plate, 17. slide 3, 18. connecting plate, 19. mounting plate 1, 20. mounting plate 2, 21. fixing plate, 22. limit Plate 1, 23, protective part, 24, slide plate, 25, connecting rod, 26, receiving part, 27, through hole, 28, adsorption part 1, 29, adsorption part 2, 32, inclined plate, 33, hydraulic rod 2, 34, driving frame, 35, transport cavity, 36, hydraulic rod 1, 37, crushing rod, 38, crushing part, 39, gear 2, 40, mixing box, 41, mixing rod, 42, mixing net, 43, pump, 44, feed pipe, 45, discharge pipe, 46, discharge pipe. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] like Figure 1-Figure 7 As shown, a graphene grinding and screening device includes a protective box 1 for receiving and protecting, the inner wall of the protective box 1 is installed with a limiting component 2 and a downward moving component 3, the downward moving component 3 is arranged at the lower end of the limiting component 2, the protective box 1 is also installed with a crushing component 4, the upper end of the crushing component 4 is arranged on the upper wall of the protective box 1, and the lower end of the crushing component 4 is movably arranged in the limiting component 2, the upper wall of the protective box 1 is installed with a regulating component 5, one end of the regulating component 5 is movably connected to the crushing component 4, and the other end of the regulating component 5 is connected to the limiting component 2 and the downward moving component 3, the protective box 1 is also installed with a stirring component 6, the lower end of the stirring component 6 is arranged on the inner bottom wall of the protective box 1, and the upper end is arranged on the upper wall of the protective box 1, and the stirring component 6 is movably connected to the crushing component 4.

[0031] The crushing component 4 includes a motor 7 and a gear 8, the motor 7 is arranged on the upper wall of the protective box 1, the gear 8 is movably arranged on the upper wall inside the protective box 1, the output shaft end of the motor 7 is connected to the center of the gear 8, the protective box 1 supports and fixes the motor 7 and the gear 8, and the gear 8 is provided with a slide groove 19, a connecting groove 10 and a slide groove 2 11, the slide groove 19 and the slide groove 2 11 are both arc-shaped structures, one end of the connecting groove 10 is connected with the slide groove 19, and the other end of the connecting groove 10 is connected with the slide groove 2 11, one end of the regulating component 5 is movably clamped in the slide groove 19, the connecting groove 10 and the slide groove 2 11, and the radius of the slide groove 2 11 is larger than the radius of the slide groove 19.

[0032] The regulating component 5 includes a driving rod 12, which is movably mounted on the inner upper wall of the protection box 1, a sliding rod 13 is movably mounted on one end of the driving rod 12, and a sliding rod 2 14 is movably mounted on the other end of the driving rod 12, and the sliding rod 13 is movably clamped in the slide groove 1 9, the connecting groove 10 and the slide groove 2 11, and the regulating component 5 also includes a limiting plate 2 15, the limiting plate 2 15 is arranged on the inner upper wall of the protection box 1, and a sliding plate 16 is movably clamped in the limiting plate 2 15, a slide groove 3 17 is arranged at one end of the sliding plate 16, and the sliding rod 2 14 is movably clamped in the slide groove 3 17, and a connecting plate 18 is installed at the other end of the sliding plate 16, and a mounting plate 19 and a mounting plate 2 20 are installed at the lower end of the connecting plate 18, and the mounting plate 1 19 is arranged at the upper end of the mounting plate 20;

[0033] It should be noted that when gear 18 rotates, it drives slide groove 19, connecting groove 10 and slide groove 2 11 to rotate, and sliding rod 13 is clamped in slide groove 19, connecting groove 10 and slide groove 2 11. If the sliding rod 13 is clamped in slide groove 9 at the beginning, as gear 18 rotates, the sliding rod 13 enters the connecting groove 10 from slide groove 9, and enters the slide groove 2 11 from the connecting groove 10. At this time, the sliding rod 13 moves from a position close to the center of gear 8 to the edge of gear 8, and the driving rod 12 rotates with the connection with the protective box 1 as the rotation center. While the sliding rod 2 14 moves along the slide groove 3 17, it pushes the sliding plate 16 to move along the limit plate 2 15. The sliding plate 16 drives the connecting plate 18 to move to a position away from the stirring assembly 6, and the connecting plate 18 drives the mounting plate 19 and the mounting plate 2 20 to move.

[0034] The limiting assembly 2 includes a fixed plate 21, a limiting plate 22 and a protective member 23. The fixed plate 21 is provided with two groups. The two groups of fixed plates 21 are symmetrically placed on the inner wall of the protective box 1 with the center line of the protective box 1 as the symmetry axis. The protective box 1 supports and fixes the fixed plate 21. The limiting plate 22 is provided on the side wall of the fixed plate 21. A slide plate 24 is movably clamped in the limiting plate 22. Both ends of the protective member 23 are respectively connected to the slide plate 24. The inner wall of the protective member 23 is symmetrically provided with a connecting rod 25 for support. A receiving member 26 is movably provided on the connecting rod 25. The mounting plate 19 is connected to the outer wall of the protective member 23. A through hole 27 is provided at the lower end of the receiving plate to facilitate the discharge of the crushed graphene raw material.

[0035] It should be noted that when the mounting plate 19 moves, the protective member 23 is driven to move. The protective member 23 moves in a direction away from the stirring assembly 6 under the limitation of the slide plate 24 and the limiting plate 22, and the protective member 23 drives the internal receiving member 26 to move.

[0036] The receiving member 26 is provided with an adsorption member 28 on its upper wall, and the protective box 1 is provided with an adsorption member 29 on its inner upper wall. The adsorption member 28 and the adsorption member 29 are placed opposite to each other. The adsorption member 28 is provided with a magnetic member 1, and the magnetic member 2 is provided with a magnetic member 2. The magnetic properties of the magnetic member 1 and the magnetic member 2 are different.

[0037] It should be noted that when the protective member 23 drives the receiving member 26 to move, the receiving member 26 drives the adsorption member 28 on the upper wall to move, the adsorption member 28 approaches the adsorption member 29, the magnetic member 1 and the magnetic member 2 are adsorbed, the adsorption member 28 tilts in the direction of the adsorption member 29, the adsorption member 28 drives the receiving member 26 to rotate with the connecting rod 25 as the rotation center, and the receiving member 26 is arranged in an inclined shape. When the protective member 23 drives the receiving member 26 away from the adsorption member 29, the magnetism disappears, and the receiving member 26 rotates in the opposite direction. Through this movement, the receiving member 26 swings, and the graphene raw material placed inside is shaken, so as to facilitate the discharge of the crushed graphene raw material in the receiving member 26. At the same time, large particles of graphene raw materials that need to be crushed are arranged at the upper end of the receiving member 26 for easy crushing.

[0038] The downward moving assembly 3 includes an inclined plate 32, which is arranged on the inner wall of the protection box 1, and the protection box 1 supports the inclined plate 32. The downward moving assembly 3 also includes a hydraulic rod 2 33, the fixed end of the hydraulic rod 2 33 is arranged on the mounting plate 20, and the movable end of the hydraulic rod 2 33 is installed with a driving frame 34, and the driving frame 34 is movably arranged on the upper wall of the inclined plate 32. A plurality of transport cavities 35 for transportation are arranged in the driving frame 34, and the transport cavities 35 are arranged through the driving frame 34. The inclined plate 32 and the driving frame 34 are arranged at the lower end of the receiving member 26;

[0039] In this embodiment, the crushed graphene raw material in the receiving part 26 falls on the inclined plate 32, and the movement of the mounting plate 20 drives the hydraulic rod 2 33 to move in the direction away from the stirring assembly 6. At this time, the hydraulic rod 2 33 drives the driving frame 34 to move upward, and the hydraulic rod 2 33 drives the driving frame 34 to move to the upper end of the inclined plate 32, and then the hydraulic rod 2 33 drives the driving frame 34 to move downward to the upper wall of the inclined plate 32. The raw material on the inclined plate 32 is arranged in the motion cavity, and the movement of the mounting plate 20 drives the hydraulic rod 2 33 to move in the direction close to the stirring assembly 6, and the driving frame 34 drives the raw material to move downward along the inclined plate 32, and pushes the raw material at the lower end of the inclined plate 32 into the stirring assembly 6.

[0040] A hydraulic rod 36 is installed at the center of the gear 8, a crushing rod 37 is installed at the movable end of the hydraulic rod 36, a crushing member 38 is installed at the lower end of the crushing rod 37, and the crushing member 38 is movably arranged in the receiving member 26.

[0041] The stirring assembly 6 includes a gear 2 39, which is movably arranged on the upper wall of the protection box 1, and the gear 1 8 is meshed with the gear 2 39. The stirring assembly 6 also includes a stirring box 40, which is arranged on the bottom wall of the protection box 1. A stirring rod 41 is installed at the center of the gear 2 39, and the lower end of the stirring rod 41 is movably arranged in the stirring box 40. A stirring net 42 is installed at the lower end of the stirring rod 41, and the stirring net 42 is arranged in the stirring box 40. The lower end of the inclined plate 32 is arranged at the upper end of the stirring box 40;

[0042] In this embodiment, the motor 7 drives the gear 1 8 to rotate, the gear 1 8 drives the gear 2 39 to rotate, and at the same time drives the hydraulic rod 1 36 to rotate, the hydraulic rod 1 36 drives the crushing rod 37 to rotate, the crushing rod 37 drives the crushing member 38 to rotate, the crushing member 38 crushes the graphene raw material in the receiving member 26, the gear 2 39 drives the stirring rod 41 to rotate, and the stirring rod 41 drives the stirring net 42 to rotate.

[0043] A pump 43 is provided on the upper wall of the protection box 1, a feed pipe 44 is installed at the inlet of the pump 43, and a discharge pipe 45 is installed at the outlet. The discharge pipe 45 is connected to the mixing box 40, and the liquid to be mixed is extracted from the feed port and discharged into the mixing box 40 through the discharge port.

[0044] The side wall of the mixing box 40 is provided with a discharge pipe 46 for discharging the mixed liquid in the mixing box 40 . The upper wall of the protective box 1 is provided with a raw material inlet for the graphene raw material to enter. This is a prior art and is not shown.

[0045] The specific use is as follows: the graphene raw material to be crushed is placed in the receiving part 26, the motor 7 drives the gear 8 to rotate, the gear 8 drives the gear 2 39 to rotate, and at the same time drives the hydraulic rod 36 to rotate, the hydraulic rod 36 drives the crushing rod 37 to rotate, the crushing rod 37 drives the crushing piece 38 to rotate, and the crushing piece 38 crushes the graphene raw material in the receiving part 26, and at the same time, the hydraulic rod 36 drives the crushing piece 38 to move up and down to facilitate the crushing of the graphene raw material. When the gear 8 rotates, it drives the slide 9, the connecting groove 10 and the slide 2 11 to rotate, and the sliding rod 13 is clamped in the slide 9, the connecting groove 10 and the slide 2 11. If the sliding rod 13 is initially clamped in the slide 9, as the gear 8 rotates, the sliding rod 13 enters the connecting groove 10 from the slide 9, and enters the slide 2 11 from the connecting groove 10. At this time, the sliding rod 13 moves from the center of the gear 8 close to the center of the gear 8. The position moves to the edge of the gear 18, the driving rod 12 rotates with the connection with the protection box 1 as the rotation center, the sliding rod 2 14 moves along the slide groove 3 17 and pushes the sliding plate 16 to move along the limit plate 2 15, the sliding plate 16 drives the connecting plate 18 to move to a position away from the stirring component 6, the connecting plate 18 drives the mounting plate 19 and the mounting plate 20 to move, and the mounting plate 19 drives the protective member 23 to move when it moves, and the protective member 23 moves in the direction away from the stirring component 6 under the limitation of the slide plate 24 and the limit plate 1 22, the protective member 23 drives the internal receiving member 26 to move, and the receiving member 26 drives the adsorption member 1 28 of the upper wall to move, the adsorption member 1 28 is close to the adsorption member 2 29, the magnetic member 1 and the magnetic member 2 are adsorbed, the adsorption member 1 28 is inclined in the direction of the adsorption member 2 29, the adsorption member 1 28 drives the receiving member 26 to rotate with the connecting rod 25 as the rotation center, and the receiving member 26 is arranged in an inclined shape;

[0046] When the sliding rod 13 moves from a position away from the center of the gear 8 to an edge close to the center of the gear 8, the protective part 23 drives the receiving part 26 away from the adsorption part 29, the magnetism disappears, and the receiving part 26 rotates in the opposite direction. Through this movement, the receiving part 26 swings, and the graphene raw material placed inside is shaken, so that the crushed graphene raw material in the receiving part 26 is discharged easily. At the same time, large particles of graphene raw materials that need to be crushed are arranged at the upper end of the receiving part 26 for easy crushing.

[0047] The crushed graphene raw material in the receiving part 26 falls on the inclined plate 32, and the movement of the mounting plate 20 drives the hydraulic rod 2 33 to move in the direction away from the stirring assembly 6. At this time, the hydraulic rod 2 33 drives the driving frame 34 to move upward, and the hydraulic rod 2 33 drives the driving frame 34 to move to the upper end of the inclined plate 32, and then the hydraulic rod 2 33 drives the driving frame 34 to move downward to the upper wall of the inclined plate 32. The raw material on the inclined plate 32 is arranged in the motion cavity, and the movement of the mounting plate 20 drives the hydraulic rod 2 33 to move in the direction close to the stirring assembly 6. The driving frame 34 drives the raw material to move downward along the inclined plate 32, and pushes the raw material at the lower end of the inclined plate 32 into the stirring assembly 6, and the liquid to be mixed is extracted from the feed port and discharged into the stirring box 40 through the discharge port. At the same time, the gear 2 39 drives the stirring rod 41 to rotate, and the stirring rod 41 drives the stirring net 42 to rotate for easy mixing.

[0048] 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 grinding and screening device, comprising a protective box for receiving and protecting, characterized in that: A limiting assembly and a downward moving assembly are installed on the inner side wall of the protection box, and the downward moving assembly is arranged at the lower end of the limiting assembly. A crushing assembly is also installed in the protection box, and the upper end of the crushing assembly is arranged on the upper wall of the protection box, and the lower end of the crushing assembly is movably arranged in the limiting assembly. A regulating assembly is installed on the upper wall of the protection box, one end of the regulating assembly is movably connected to the crushing assembly, and the other end of the regulating assembly is connected to the limiting assembly and the downward moving assembly. A stirring assembly is also installed in the protection box, and the lower end of the stirring assembly is arranged on the inner bottom wall of the protection box, and the upper end is arranged on the upper wall of the protection box. The stirring assembly is movably connected to the crushing assembly.

2. The graphene grinding and screening device according to claim 1, characterized in that: The crushing assembly includes a motor and a gear 1, the motor is arranged on the upper wall of the protective box, the gear 1 is movably arranged on the upper wall inside the protective box, the output shaft end of the motor is connected to the center of the gear 1, the gear 1 is provided with a slide groove 1, a connecting groove and a slide groove 2, the slide groove 1 and the slide groove 2 are both arc structures, one end of the connecting groove is connected with the slide groove 1, and the other end of the connecting groove is connected with the slide groove 2, one end of the regulating assembly is movably clamped in the slide groove 1, the connecting groove and the slide groove 2, and the radius of the slide groove 2 is greater than the radius of the slide groove 1.

3. The graphene grinding and screening device according to claim 2, characterized in that: The regulating component includes a driving rod, which is movably mounted on the upper inner wall of the protective box, a sliding rod 1 is movably mounted on one end of the driving rod, and a sliding rod 2 is movably mounted on the other end of the driving rod, and the sliding rod 1 is movably clamped in the sliding groove 1, the connecting groove and the sliding groove 2. The regulating component also includes a limiting plate 2, which is arranged on the upper inner wall of the protective box, and a sliding plate is movably clamped in the limiting plate 2, one end of the sliding plate is provided with a sliding groove 3, the sliding rod 2 is movably clamped in the sliding groove 3, the other end of the sliding plate is installed with a connecting plate, the lower end of the connecting plate is installed with a mounting plate 1 and a mounting plate 2, and the mounting plate 1 is arranged at the upper end of the mounting plate 2.

4. The graphene grinding and screening device according to claim 3, characterized in that: The limiting assembly includes a fixed plate, a limiting plate 1 and a protective member. The fixed plates are provided with two groups. The two groups of fixed plates are symmetrically placed on the inner wall of the protective box with the center line of the protective box as the symmetry axis. The limiting plate 1 is provided on the side wall of the fixed plate. A slide plate is movably clamped in the limiting plate 1. Both ends of the protective member are respectively connected to the slide plate. Connecting rods for support are symmetrically installed on the inner wall of the protective member. A receiving member is movably installed on the connecting rod. The mounting plate 1 is connected to the outer wall of the protective member. A through hole is provided at the lower end of the receiving plate.

5. The graphene grinding and screening device according to claim 4, characterized in that: An adsorption component 1 is installed on the upper wall of the receiving component, and an adsorption component 2 is installed on the inner upper wall of the protective box. The adsorption component 1 and the adsorption component 2 are placed opposite to each other. A magnetic component 1 is installed on the adsorption component 1, and a magnetic component 2 is installed on the magnetic component 2. The magnetic properties of the magnetic component 1 and the magnetic component 2 are different.

6. The graphene grinding and screening device according to claim 5, characterized in that: The downward moving component includes an inclined plate, which is arranged on the inner wall of the protection box. The downward moving component also includes a hydraulic rod 2, the fixed end of which is arranged on the mounting plate 2, and the movable end of which is installed with a driving frame, and the driving frame is movably arranged on the upper wall of the inclined plate. A plurality of transport cavities for transportation are arranged in the driving frame, and the transport cavities penetrate the driving frame. The inclined plate and the driving frame are arranged at the lower end of the receiving member.

7. The graphene grinding and screening device according to claim 6, characterized in that: A hydraulic rod 1 is installed at the center position of the gear 1, a breaking rod is installed at the movable end of the hydraulic rod 1, a breaking piece is installed at the lower end of the breaking rod, and the breaking piece is movably arranged in the receiving piece.

8. The graphene grinding and screening device according to claim 7, characterized in that: The stirring assembly includes gear 2, which is movably arranged on the upper wall of the protective box, and gear 1 and gear 2 are meshed and connected. The stirring assembly also includes a stirring box, which is arranged on the bottom wall of the protective box. A stirring rod is installed at the center of gear 2, and the lower end of the stirring rod is movably arranged in the stirring box. A stirring net is installed at the lower end of the stirring rod, and the stirring net is arranged in the stirring box. The lower end of the inclined plate is arranged at the upper end of the stirring box.

9. The graphene grinding and screening device according to claim 8, characterized in that: A pump is provided on the upper wall of the protection box, a feed pipe is installed at the inlet of the pump, and a discharge pipe is installed at the outlet, and the discharge pipe is connected to the mixing box.

10. The graphene grinding and screening device according to claim 9, characterized in that: A discharge pipe is installed on the side wall of the mixing box, and a raw material inlet is arranged on the upper wall of the protection box.

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