Graphene crushing device

Abstract

The invention relates to the field of crushing equipment, and particularly discloses a graphene crushing device.According to the graphene crushing device, a rotating sieve tray and a rotating lifting plate are arranged, so that graphene particles intercepted on the sieve tray after crushing are circularly lifted and circularly crushed, and the overall crushing effect and crushing efficiency of the graphene particles are improved; meanwhile, the number of fixed positions where intercepted graphene particles are accumulated on the sieve tray is reduced, and the probability that the intercepted graphene particles squeeze one another to block sieve holes is reduced; in addition, by arranging a dredging mechanism comprising a dredging needle, a lifting disc, a first magnet and a second magnet, the dredging needle extrudes and dredges the screen holes, the stuck particles in the screen holes are ejected out and crushed, and the blocking rate of the screen holes is further reduced.

Description

Technical Field

[0001] The present invention relates to the field of graphene processing, and more specifically, to a graphene crushing device. Background Art

[0002] Graphene materials have a large number of applications in industry, such as battery separators in new energy batteries, casings of electrical equipment, etc., which also generates a large number of waste graphene parts that need to be recycled and separated. Recycling and separation require the waste graphene parts to be crushed and sorted.

[0003] The existing crushing device screens the graphene particles that meet the particle size requirements during the crushing process through the screen. However, during the use of the existing screen, the intercepted graphene particles accumulate on the screen hole surface of the screen. Due to the mutual squeezing of the graphene particles, some graphene particles are stuck in the screen holes and cannot be removed. As the screening time increases, the screen holes of the screen are gradually blocked, and the blockage rate of the screen holes becomes higher and higher, which reduces the screening efficiency and overall crushing efficiency of the screen. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a graphene crushing device, which can reduce the accumulation of graphene particles on the surface of the sieve holes of the sieve plate and cyclically crush the graphene particles.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A graphene crushing device comprises a crushing drum connected to a feeding hopper at the upper end and a discharge pipe at the lower end, a crushing mechanism is arranged in the crushing drum, the crushing mechanism comprises a crushing shaft connected to a first motor, and a plurality of crushing knives are fixedly connected to the crushing shaft; a sieve plate rotatably connected to the inner wall of the sieve plate is arranged below the crushing mechanism, a gear ring is fixedly connected to the lower end of the sieve plate, a driving gear is meshed with the gear ring, and the driving gear is fixedly connected to the output shaft of the second motor; The sieve plate is provided with evenly distributed sieve holes, and the upper end surface of the sieve plate is abutted against a lifting plate, which is an inclined strip plate, and a plurality of evenly distributed dispersion plates are fixedly connected to its front end surface, and the lifting plate is fixedly connected to the crushing shaft.

[0007] As a further improvement of the present invention, a dredging mechanism is provided below the sieve hole, and the dredging mechanism includes a dredging needle arranged below the sieve hole, and a lifting plate is fixedly connected below the dredging needle, and a mounting cylinder vertically slidingly connected to the lifting plate is sleeved on the outer side of the lifting plate, and the mounting cylinder is fixedly connected to the lower end surface of the sieve plate through a fixing rod; a first magnet is nested in the lifting plate, and a fixing plate fixedly connected to the inner wall of the crushing cylinder is provided below the sieve plate, and a second magnet with opposite polarity to the first magnet is provided in the fixing plate.

[0008] As a further improvement of the present invention, the crushing drum is a cylindrical structure with a conical cavity at the bottom, the feeding hopper is arranged on the upper part of the crushing drum and located at the upper edge of the crushing drum, and the discharge pipe is arranged in the middle position of the lower part of the crushing drum and is connected to the conical cavity.

[0009] As a further improvement of the present invention, a spreading cavity is opened on the upper part of the sieve plate, and the sieve holes are connected to the spreading cavity. The spreading cavity is a conical cavity with an inverted isosceles trapezoidal cross-section. A scraper is slidably abutted on the upper end of the sieve plate, and the scraper is slidably abutted against the inner wall of the crushing barrel. The outer end of the crushing knife is fixedly connected to the inner wall of the scraper.

[0010] As a further improvement of the present invention, the scraper is an arc-shaped plate and has inclined surfaces on both sides thereof.

[0011] As a further improvement of the present invention, a paving plate is fixedly connected to the side of the crushing shaft away from the lifting plate. The paving plate is a vertical plate and there is a gap between the paving plate and the inner wall of the paving chamber.

[0012] As a further improvement of the present invention, the end of the dredging needle facing the sieve hole is a pointed tip, the mounting tube is a hollow cylinder with a pointed tip at the top, there is a gap between the mounting tube and the lower end surface of the sieve plate, and the sieve hole is a tapered hole that is narrow at the top and wide at the bottom.

[0013] As a further improvement of the present invention, a first spring and a second spring located at the upper and lower sides of the lifting plate are provided in the installation cylinder.

[0014] Compared with the prior art, the advantages of the present invention are: (1) The present invention provides a rotating sieve plate and a rotating lifting plate, so that the graphene particles trapped on the sieve plate after crushing are cyclically lifted up and crushed in a cycle, thereby improving the overall crushing effect and crushing efficiency of the graphene particles; at the same time, the accumulation of the trapped graphene particles on the sieve plate is reduced, thereby reducing the probability of the trapped graphene particles clogging the sieve holes due to mutual squeezing.

[0015] (2) The present invention uses a dispersion plate disposed on the lifting plate to evenly lift the graphene particles accumulated on the sieve plate, thereby improving the contact effect between the retained graphene particles and the crushing knife and reducing the number of graphene particles accumulated at the edge of the sieve plate.

[0016] (3) The present invention collects the graphene particles in the crushing cylinder by providing a sieve plate with a spreading cavity and a scraper, which is convenient for subsequent lifting and crushing. At the same time, the scraper provides support for the crushing knife, improves the stability of the crushing knife during crushing, and scrapes and cleans the inner wall of the crushing cylinder 1, further improving the collection effect of the graphene particles. In addition, by providing a spreading plate, when there are fewer graphene particles in the crushing cylinder, the screening and crushing are accelerated.

[0017] (4) The present invention is provided with a dredging mechanism including a dredging needle, a lifting plate, a first magnet and a second magnet. The dredging needle is moved vertically by utilizing the repulsion between the same poles of the first magnet and the second magnet, thereby squeezing and dredging the sieve holes, ejecting and crushing the stuck particles in the sieve holes, and further reducing the blockage rate of the sieve holes. The lifting plate drives the dredging needle to move back and forth vertically multiple times through the first spring and the second spring, thereby further improving the screening efficiency and the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the internal structure of the crushing tube in the present invention; Figure 3 It is a schematic diagram of the transverse cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the assembly structure of the sieve plate in the present invention; Figure 5 It is a schematic cross-sectional structure diagram of the lifting plate in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the scraper in the present invention; Figure 7 for Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 8 It is a schematic diagram of the assembly structure of the dredging needle and the installation cylinder in the present invention; Fig. 9 It is a schematic diagram of the state where the dredging needle in the present invention is inserted into the sieve hole.

[0019] Explanation of the numbers in the figure: 1. Crushing cylinder; 2. Sieve plate; 201. Spreading chamber; 202. Sieve hole; 3. Crushing shaft; 4. Crushing knife; 5. Scraper; 501. Inclined surface; 6. First motor; 7. Lifting plate; 8. Dispersing plate; 9. Gear ring; 10. Driving gear; 11. Second motor; 12. Feed hopper; 13. Discharge pipe; 14. Spreading plate; 15. Unclogging needle; 16. Lifting plate; 17. Mounting cylinder; 18. Fixing rod; 19. First magnet; 20. First spring; 21. Second spring; 22. Fixing plate; 23. Second magnet. DETAILED DESCRIPTION

[0020] 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; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-6 In one embodiment of the present invention, a graphene crushing device includes a crushing drum 1 connected to a feeding hopper 12 at the upper end and a discharge pipe 13 at the lower end, a crushing mechanism is arranged in the crushing drum 1, the crushing mechanism includes a crushing shaft 3 connected to a first motor 6, and a plurality of crushing knives 4 are fixedly connected to the crushing shaft 3; a sieve plate 2 rotatably connected to the inner wall thereof is arranged below the crushing mechanism, a gear ring 9 is fixedly connected to the lower end of the sieve plate 2, a driving gear 10 is meshed with the gear ring 9, and the driving gear 10 is fixedly connected to the output shaft of the second motor 11; See also Figure 2 and Figure 4 The sieve plate 2 is provided with evenly distributed sieve holes 202, and the upper end surface of the sieve plate 2 is abutted with a lifting plate 7, which is an inclined strip plate, and a plurality of equidistantly distributed dispersion plates 8 are fixedly connected to its front end surface, and the lifting plate 7 is fixedly connected to the crushing shaft 3.

[0024] Specifically, the graphene partition plate to be crushed is put into the feeding hopper 12, and then the first motor 6 and the second motor 11 are started. The first motor 6 drives the crushing shaft 3 to rotate, and the crushing shaft 3 drives the crushing knife 4 to rotate, so as to crush the graphene plate to produce graphene particles. The graphene particles that meet the particle size fall from the sieve hole 202 and are then discharged from the discharge pipe 13; the graphene particles that do not meet the particle size are intercepted by the sieve plate 2, and the crushing shaft 3 drives the crushing knife 4 to rotate and drives the lifting plate 7 to rotate. The lifting plate 7 lifts the graphene particles accumulated on the sieve plate 2, so that the graphene particles are re-seated with the crushing knife 4 The second motor 11 drives the gear ring 9 to rotate through the driving gear 10, and the gear ring 9 drives the sieve plate 2 to rotate, thereby improving the screening effect, reducing the accumulation of graphene particles at a fixed position on the sieve plate 2, reducing the situation where graphene particles are stuck in the sieve hole 202 due to the mutual extrusion of graphene particles, reducing the blockage of the sieve hole 202, and improving the screening efficiency. At the same time, the dispersion plate 8 arranged on the lifting plate 7 makes the graphene particles dispersed more evenly when they are lifted, which is convenient for subsequent re-crushing and reduces the accumulation of graphene particles at the edge of the crushing cylinder 1; It should be noted that the lifting plate 7 and the sieve plate 2 have different rotation speeds.

[0025] Compared with the traditional graphene crushing device, the present invention is provided with a rotating sieve plate 2 and a rotating lifting plate 7, so that the graphene particles trapped on the sieve plate 2 after crushing are circulated and lifted up for cyclic crushing, thereby improving the overall crushing effect and crushing efficiency of the graphene particles; at the same time, the fixed position where the trapped graphene particles accumulate on the sieve plate 2 is reduced, and the probability of the trapped graphene particles clogging the sieve holes 202 due to mutual squeezing is reduced; in addition, the dispersion plate 8 arranged on the lifting plate 7 makes the graphene particles accumulated on the sieve plate 2 evenly lifted up, thereby improving the contact effect between the trapped graphene particles and the crushing knife 4, and reducing the number of graphene particles accumulated at the edge of the sieve plate 2.

[0026] See also Figure 2 and Figure 4 The crushing drum 1 is a cylindrical structure with a conical cavity at the bottom. The feeding hopper 12 is arranged on the upper part of the crushing drum 1 and located at the upper edge of the crushing drum 1. The discharge pipe 13 is arranged in the middle position of the lower part of the crushing drum 1 and is connected with the conical cavity.

[0027] Specifically, it is convenient to carry out feeding and discharging.

[0028] See also Figure 4 A spreading cavity 201 is provided on the upper part of the sieve plate 2, and the sieve hole 202 is connected to the spreading cavity 201. The spreading cavity 201 is a conical cavity with an inverted isosceles trapezoidal cross-section. A scraper 5 is slidably abutted against the upper end of the sieve plate 2, and the scraper 5 is slidably abutted against the inner wall of the crushing cylinder 1. The outer end of the crushing knife 4 is fixedly connected to the inner wall of the scraper 5.

[0029] Specifically, the crushing shaft 3 drives the scraper 5 to make circular motion through the crushing knife 4, and cooperates with the spreading chamber 201, so that the graphene particles are gathered in the spreading chamber 201, which is convenient for screening and material removal. At the same time, the scraper 5 rotates along the inner wall of the crushing barrel 1 to improve the stability of the crushing knife 4 and improve the crushing effect.

[0030] See also Figure 6 The scraper 5 is an arc-shaped plate and has inclined surfaces 501 on both sides.

[0031] Specifically, the scraping effect of the scraper 5 is improved, the graphene particles located at the edge of the crushing cylinder 1 are pushed to the middle of the crushing cylinder 1, and the cleaning and collecting effect of the scraper 5 is improved.

[0032] See also Figure 2 and Figure 4 A paving plate 14 is fixedly connected to the side of the crushing shaft 3 away from the lifting plate 7. The paving plate 14 is a vertical plate and there is a gap between the paving plate 14 and the inner wall of the paving chamber 201.

[0033] Specifically, when there are fewer graphene particles in the crushing barrel 1, the spreading plate 14 rotates with the crushing shaft 3 to spread the graphene particles accumulated in the spreading chamber 201 in a circular manner, thereby accelerating the screening efficiency and improving the uniformity of the dispersion of the graphene particles, which is convenient for lifting and cyclic crushing.

[0034] In another embodiment of the present invention, see Figure 3 and Figure 7-9 A dredging mechanism is provided below the sieve hole 202, and the dredging mechanism includes a dredging needle 15 arranged below the sieve hole 202, and a lifting plate 16 is fixedly connected below the dredging needle 15. A mounting cylinder 17 vertically slidably connected to the outer side of the lifting plate 16 is sleeved, and the mounting cylinder 17 is fixedly connected to the lower end surface of the sieve plate 2 through a fixing rod 18; a first magnet 19 is nested in the lifting plate 16, and a fixing plate 22 fixedly connected to the inner wall of the crushing cylinder 1 is provided below the sieve plate 2, and a second magnet 23 with a polarity opposite to that of the first magnet 19 is provided in the fixing plate 22.

[0035] For details, please refer to Fig. 9 When the sieve plate 2 rotates, it drives the mounting cylinder 17 to rotate. When the lifting plate 16 in the mounting cylinder 17 rotates to above the fixed plate 22, the first magnet 19 and the second magnet 23 have opposite polarities (North Pole to North Pole or South Pole to South Pole) and repel each other. Since the second magnet 23 is fixed by the fixed plate 22, the first magnet 19 drives the lifting plate 16 to move upward, and the lifting plate 16 drives the dredging needle 15 to move upward. The dredging needle 15 squeezes and dredges the sieve hole 202, thereby reducing the blockage rate of the sieve hole 202 and improving the screening efficiency.

[0036] See also Figure 8The end of the dredging needle 15 facing the sieve hole 202 is a pointed tip, the mounting cylinder 17 is a hollow cylinder with a pointed tip at the top, there is a gap between the mounting cylinder 17 and the lower end surface of the sieve plate 2, and the sieve hole 202 is a tapered hole that is narrow at the top and wide at the bottom.

[0037] See also Figure 3 The fixed plate 22 is a strip plate and is parallel to the radial line of the sieve plate 2 (the straight line passing through the center of the cross section of the sieve plate 2).

[0038] Specifically, after the unclogging needle 15 is inserted into the sieve hole 202 , the blocked particles in the sieve cylinder 202 with a conical hole are crushed or squeezed into the paving cavity 201 , so as to facilitate the rapid unclogging of the sieve hole 202 .

[0039] See also Figure 7 A first spring 20 and a second spring 21 are disposed in the mounting tube 17 and are located on the upper and lower sides of the lifting plate 16 .

[0040] Specifically, when the installation cylinder 17 below a certain sieve hole 202 moves above the fixed plate 22, the lifting plate 16 drives the dredging needle 15 to move upward, and the first spring 20 is compressed. When the installation cylinder 17 is away from the fixed plate 22, the first magnet 19 is no longer repelled by the second magnet 23, and the first spring 20 pushes the lifting plate 16 to move downward. Under the combined action of the gravity of the lifting plate 16, the elastic force of the first spring 20 and the inertia, the lifting plate 16 returns to the initial position and continues to move downward to compress the second spring 21. Then, when the lifting plate 16 moves down to the lowest point, it moves upward again under the action of the second spring 21, and the above process is repeated. The lifting plate 16 drives the dredging needle 15 to move up and down multiple times, squeezes and dredges the sieve hole 202 multiple times, and crushes the graphene particles trapped in the sieve hole 202 and unable to be ejected, thereby improving the dredging effect.

[0041] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A graphene crushing device, characterized in that: The invention comprises a crushing cylinder (1) whose upper end is connected to a feeding hopper (12) and whose lower end is connected to a discharge pipe (13), wherein a crushing mechanism is arranged inside the crushing cylinder (1), wherein the crushing mechanism comprises a crushing shaft (3) connected to a first motor (6), and wherein a plurality of crushing knives (4) are fixedly connected to the crushing shaft (3); a sieve plate (2) rotatably connected to the inner wall of the sieve plate (2) is arranged below the crushing mechanism, a gear ring (9) is fixedly connected to the lower end of the sieve plate (2), and a driving gear (10) is meshed with the gear ring (9), and the driving gear (10) is fixedly connected to the output shaft of a second motor (11); The sieve plate (2) is provided with evenly distributed sieve holes (202), the upper end surface of the sieve plate (2) is butted against a lifting plate (7), the lifting plate (7) is an inclined strip plate, and a plurality of evenly distributed dispersion plates (8) are fixedly connected to the front end surface thereof, and the lifting plate (7) is fixedly connected to the crushing shaft (3).

2. A graphene crushing device according to claim 1, characterized in that: A dredging mechanism is provided below the sieve hole (202), the dredging mechanism comprising a dredging needle (15) provided below the sieve hole (202), a lifting plate (16) being fixedly connected below the dredging needle (15), a mounting cylinder (17) being sleeved on the outer side of the lifting plate (16) and vertically slidably connected thereto, the mounting cylinder (17) being fixedly connected to the lower end surface of the sieve plate (2) via a fixing rod (18); a first magnet (19) is embedded in the lifting plate (16), a fixing plate (22) fixedly connected to the inner wall of the crushing cylinder (1) is provided below the sieve plate (2), and a second magnet (23) having a polarity opposite to that of the first magnet (19) is provided in the fixing plate (22).

3. A graphene crushing device according to claim 1, characterized in that: The crushing barrel (1) is a cylindrical structure with a conical cavity at the bottom. The feeding hopper (12) is arranged at the top of the crushing barrel (1) and located at the upper edge of the crushing barrel (1). The discharge pipe (13) is arranged at the middle position of the bottom of the crushing barrel (1) and is connected to the conical cavity.

4. A graphene crushing device according to claim 1, characterized in that: A spreading cavity (201) is provided on the upper part of the sieve plate (2), the sieve holes (202) are in communication with the spreading cavity (201), the spreading cavity (201) is a conical cavity with a cross-section in the shape of an inverted isosceles trapezoid, a scraper (5) is slidably abutted against the upper end of the sieve plate (2), the scraper (5) is slidably abutted against the inner wall of the crushing cylinder (1), and the outer end of the crushing knife (4) is fixedly connected to the inner wall of the scraper (5).

5. A graphene crushing device according to claim 4, characterized in that: The scraper (5) is an arc-shaped plate and has inclined surfaces (501) on both sides.

6. A graphene crushing device according to claim 1, characterized in that: A paving plate (14) is fixedly connected to the side of the crushing shaft (3) away from the lifting plate (7); the paving plate (14) is a vertical plate and there is a gap between the paving plate (14) and the inner wall of the paving chamber (201).

7. A graphene crushing device according to claim 2, characterized in that: The end of the dredging needle (15) facing the sieve hole (202) is a pointed tip, the mounting cylinder (17) is a hollow cylinder with a pointed tip at the top, a gap exists between the mounting cylinder (17) and the lower end surface of the sieve plate (2), and the sieve hole (202) is a tapered hole that is narrow at the top and wide at the bottom.

8. A graphene crushing device according to claim 7, characterized in that: A first spring (20) and a second spring (21) are provided in the installation cylinder (17) and are located on the upper and lower sides of the lifting plate (16).

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