Pulverizer for recycling lithium batteries

Abstract

The utility model relates to a crusher for recycling lithium batteries. The crusher comprises a crushing box and a collecting box which is fixed on the bottom surface of the crushing box and is used for collecting the crushed lithium batteries. According to the smashing machine for recycling the lithium batteries, by arranging the screening assembly, the lithium batteries can fall into the conveying box after being smashed, the smashed lithium batteries are conveyed from right to left through a spiral conveying piece arranged in the conveying box, and due to the fact that the apertures of screening holes formed in three screening plates are different, small smashed lithium batteries can fall into a drawer cabinet on the right side; when the lithium battery is crushed, the crushed materials with the middle size can fall into the drawer cabinet on the middle side, and the large particles can fall into the drawer cabinet on the left side, so that the purpose of screening the crushed materials of the lithium battery is achieved, and the large crushed materials of the lithium battery can be pulled out and poured into the crushing box again to be crushed; the qualified rate of lithium batteries crushed by the crusher is improved, and meanwhile, the crushing efficiency of the crusher can be effectively improved by reducing the screening procedure.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, and specifically relates to a crusher for lithium battery recycling. Background Technique

[0002] A lithium battery is a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream.

[0003] For example, the Chinese utility model patent with the publication number CN 218531093 U discloses a crusher for lithium battery recycling. Its technical solution is as follows: It includes a main box, a first roller and a second roller arranged between the inner walls on both sides at both ends of the main box. Rack teeth are arranged on the circumferential outer walls of the first roller and the second roller, and the first roller meshes with the second roller. One end of the outer wall on the other side of the main box is provided with a driving motor, and one end of the output shaft of the driving motor is connected to the outer wall of one side of the second roller. The two ends of the outer wall on one side of the main box are respectively rotatably connected through bearings with a first toothed ring and a second toothed ring that mesh with each other, and the first toothed ring and the second toothed ring are respectively connected to the first roller and the second roller; Feed plates are arranged on the inner walls at the tops of both ends of the main box, and a discharge port is opened on the outer wall at one end of the bottom of the main box. An air inlet mechanism for blowing air to the first roller and the second roller is arranged on the outer wall of one side of the main box, and a spraying mechanism for spraying water to the first roller and the second roller is arranged on the inner wall at the bottom of the other end of the main box.

[0004] After the applicant's search, it is found that in the above technical solution, there are still some problems that need to be urgently improved. For example, when crushing lithium batteries, it is inevitable that the sizes of the crushed lithium batteries are different, and the crushed lithium battery materials that do not meet the size requirements need to be crushed again. However, the screening method for the crushed lithium battery materials is relatively cumbersome. Usually, the crushed lithium batteries need to be collected, and then the unqualified crushed batteries are screened, which reduces the crushing qualification rate of the crusher, and adding an additional screening process will reduce the efficiency of the crusher for crushing lithium batteries. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a crusher for lithium battery recycling to solve the problems mentioned in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A crusher for lithium battery recycling includes a crushing box and a collection box fixed to the bottom surface of the crushing box for collecting the crushed lithium batteries;

[0007] A crushing mechanism is arranged inside the crushing box;

[0008] Inside the crushing box, a screening mechanism is also provided;

[0009] The screening mechanism includes a conveying box fixed between the left and right side walls of the inner cavity of the crushing box. A conveying motor is fixed at the right end of the crushing box. The output shaft of the conveying motor penetrates and extends into the interior of the conveying box and is fixed with a shaft body. A spiral conveying blade is fixed on the outer surface of the shaft body. The screening mechanism also includes a diversion plate arranged inside the crushing box;

[0010] The collection box is a rectangle with a missing top surface and at least three sliding holes opened on the front surface. A drawer cabinet is slidably connected inside the sliding holes. A sieve plate is placed on the top surface of the drawer cabinet.

[0011] Further, a stop block is fixed on the inner peripheral wall of the drawer cabinet. The stop block is in a square shape, and the sieve plate is placed inside the stop block.

[0012] Further, a plurality of sieve holes are arranged at equal intervals on the sieve plate. The diameters of the sieve holes opened from right to left on the plurality of sieve plates are 2CM, 3.CM, and 5CM respectively.

[0013] Further, a feed hole is opened on the top surface of the conveying box and near its right end. An opening is opened on the bottom surface of the diversion plate, and the opening corresponds to the feed hole.

[0014] Further, a square hole is also opened on the top surface of the crushing box, and a feed port is fixed on the square hole.

[0015] Further, the crushing mechanism includes a crushing motor fixed on the front surface of the crushing box. The output shaft of the crushing motor is fixed with a driving sprocket. The outer surface of the driving sprocket is drivingly connected with a transmission chain. The other end of the transmission chain is drivingly connected with a driven sprocket. A rotating shaft is fixed inside the driven sprocket. A first gear is also fixed on the outer surface of the rotating shaft. A second gear is meshed with the right end of the first gear. A rotating rod is fixed inside the second gear. The left ends of the rotating rod and the rotating shaft both penetrate and extend into the interior of the crushing box and are rotatably connected thereto through bearings. Crushing rollers are fixed on the outer surfaces of the rotating rod and the rotating shaft.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0017] The lithium battery recycling crusher is provided with a screening component. After the lithium battery is crushed, it will fall into the conveying box. The spiral conveying blades arranged in the conveying box will convey the crushed lithium battery from right to left. Since the apertures of the screening holes opened on the three sieve plates are different, the smaller crushed lithium battery materials will fall into the right drawer cabinet, the medium-sized crushed materials will fall into the middle side drawer cabinet, and the larger particulate matters will fall into the left drawer cabinet, so as to achieve the purpose of screening the crushed lithium battery materials. And the drawer cabinet loaded with the larger crushed lithium battery materials can be pulled out and poured back into the crushing box for re-crushing, which improves the qualification rate of the lithium battery crushed by the crusher. At the same time, by reducing the screening process, the crushing efficiency of the crusher can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0019] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0020] Figure 3 is a schematic internal planar structural diagram of the crushing box of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the guide plate of the present utility model;

[0022] Figure 5 is a schematic structural diagram of the collection box of the present utility model.

[0023] In the figure: 1. Crushing box; 2. Collection box; 3. Feeding port; 4. Crushing motor; 5. Driving sprocket; 6. Transmission chain; 7. Driven sprocket; 8. Rotating shaft; 9. First gear; 10. Second gear; 11. Rotating rod; 12. Crushing roller; 13. Conveying box; 14. Conveying motor; 15. Shaft body; 16. Spiral conveying blade; 17. Guide plate; 18. Drawer cabinet; 19. Sieve plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1, A pulverizer for lithium battery recycling in this embodiment includes a pulverizing box 1 and a collection box 2 fixed to the bottom surface of the pulverizing box 1 for collecting the pulverized lithium batteries. A square hole is also opened on the top surface of the pulverizing box 1, and a feed inlet 3 is fixed on the square hole; a pulverizing mechanism is provided inside the pulverizing box 1; a screening mechanism is also provided inside the pulverizing box 1.

[0026] Please refer to Figure 1 and Figure 2 , To pulverize the lithium battery, the pulverizing mechanism in this embodiment includes a crushing motor 4 fixed to the front of the pulverizing box 1. A driving sprocket 5 is fixed to the output shaft of the crushing motor 4. A transmission chain 6 is drivingly connected to the outer surface of the driving sprocket 5. The other end of the transmission chain 6 is drivingly connected to a driven sprocket 7. A rotating shaft 8 is fixed inside the driven sprocket 7. A first gear 9 is also fixed to the outer surface of the rotating shaft 8. A second gear 10 is meshed with the right end of the first gear 9. A rotating rod 11 is fixed inside the second gear 10. The left ends of the rotating rod 11 and the rotating shaft 8 both penetrate and extend into the inside of the pulverizing box 1 and are rotatably connected thereto through bearings. Crushing rollers 12 are fixed to the outer surfaces of the rotating rod 11 and the rotating shaft 8.

[0027] When it is necessary to pulverize and recycle the lithium battery, first place the lithium battery to be pulverized into the pulverizing box 1 through the feed inlet 3. When the lithium battery enters the pulverizing box 1, start the crushing motor 4. The output shaft of the crushing motor 4 rotates to drive the driving sprocket 5 to rotate. During the rotation of the driving sprocket 5, the driven sprocket 7 is driven to rotate by the transmission chain 6 provided on the outer surface of the driving sprocket 5. The rotating shaft 8 fixed inside the driven sprocket 7 is driven to rotate by the driven sprocket 7. During the rotation of the rotating shaft 8, the first gear 9 provided on the outer surface of the rotating shaft 8 is driven to rotate. During the rotation of the first gear 9, the second gear 10 meshed with it is driven to rotate, and the rotating rod 11 fixed inside the second gear 10 rotates in the opposite direction to the rotating shaft 8, further driving the crushing rollers 12 fixed to the outer surfaces of the rotating shaft 8 and the rotating rod 11 to rotate towards the opposite ends respectively, so as to achieve the purpose of pulverizing the lithium battery entering the pulverizing box 1.

[0028] Please refer to Figure 3 Figure 4 and Figure 5 , To, the screening mechanism in this embodiment includes a conveying box 13 fixed between the left and right side walls of the inner cavity of the pulverizing box 1. A feed hole is opened on the top surface of the conveying box 13 near its right end. A conveying motor 14 is fixed to the right end of the pulverizing box 1. The output shaft of the conveying motor 14 penetrates and extends into the inside of the conveying box 13 and is fixed with a shaft body 15. A spiral conveying blade 16 is fixed to the outer surface of the shaft body 15. The screening mechanism also includes a guiding plate 17 provided inside the pulverizing box 1. An opening is opened on the bottom surface of the guiding plate 17, and the opening corresponds to the feed hole.

[0029] The collection box 2 is a rectangle with a missing top surface and at least three sliding holes opened on the front surface. A drawer cabinet 18 is slidably connected inside the sliding holes. A stop block is fixed on the inner peripheral wall of the drawer cabinet 18. The stop block is in a square shape. A sieve plate 19 is placed on the top surface of the drawer cabinet 18. A plurality of sieve holes are opened on the sieve plate 19 and are evenly distributed. The diameters of the sieve holes opened on the plurality of sieve plates 19 from right to left are 2CM, 3.5CM, and 5CM respectively. The sieve plate 19 is placed inside the stop block.

[0030] After the lithium battery is crushed by the two crushing rollers 12, the crushed lithium battery will fall downward under the action of gravity. When falling, under the reverse flow action of the deflector 17, the crushed lithium battery will enter the conveying box 13 through the feeding hole. By starting the conveying motor 14, when the output shaft of the conveying motor 14 rotates, it will drive the shaft body 15 fixed on the output shaft of the conveying motor 14 to rotate, and the spiral conveying sheet 16 fixed on the outer surface of the shaft body 15 will convey the crushed lithium battery from right to left. During the conveying process, because the diameters of the sieve holes opened on the three sieve plates 19 are different, the smaller crushed lithium battery materials will fall into the right drawer cabinet 18, and the medium-sized crushed lithium battery materials will fall into the middle drawer cabinet 18 through the sieve holes opened on the middle sieve plate 19. Further, the spiral conveying sheet 16 continuously rotates to drive the remaining crushed lithium battery materials to move leftward until they are conveyed to the leftmost sieve plate 19 and further fall into the leftmost drawer cabinet 18. Because the size of the crushed lithium battery materials in the leftmost drawer cabinet 18 does not meet the standard, the leftmost drawer cabinet 18 can be pulled out, and the crushed lithium battery materials inside it can be poured back into the crushing box 1 for crushing again.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crusher for lithium battery recycling, characterized in that: It includes a crushing box (1) and a collection box (2) fixed to the bottom surface of the crushing box (1) for collecting the crushed lithium batteries. A crushing mechanism is provided inside the crushing box (1). A screening mechanism is also provided inside the crushing box (1). The screening mechanism includes a conveying box (13) fixed between the left and right side walls of the inner cavity of the crushing box (1). A conveying motor (14) is fixed to the right end of the crushing box (1). The output shaft of the conveying motor (14) penetrates and extends into the interior of the conveying box (13) and is fixed with a shaft body (15). A spiral conveying sheet (16) is fixed to the outer surface of the shaft body (15). The screening mechanism further includes a diversion plate (17) provided inside the crushing box (1). The collection box (2) is a rectangle with a missing top surface and at least three sliding holes opened on the front surface. A drawer cabinet (18) is slidably connected inside the sliding holes. A sieve plate (19) is placed on the top surface of the drawer cabinet (18).

2. The shredder for lithium battery recycling according to claim 1, wherein: A stop block is fixed to the inner peripheral wall of the drawer cabinet (18). The stop block is in a square shape, and the sieve plate (19) is placed inside the stop block.

3. A shredder for lithium battery recycling according to claim 1, characterized in that: A plurality of sieve holes are opened on the sieve plate (19) and are equally spaced. The diameters of the sieve holes opened on the plurality of sieve plates (19) from right to left are 2 cm, 3.5 cm, and 5 cm respectively.

4. A shredder for lithium battery recycling according to claim 1, characterized in that: A feed hole is opened on the top surface of the conveying box (13) and near its right end. An opening is opened on the bottom surface of the diversion plate (17), and the opening corresponds to the feed hole.

5. A crusher for lithium battery recycling according to claim 1, characterized in that: A square hole is also opened on the top surface of the crushing box (1), and a feed port (3) is fixed to the square hole.

6. The shredder for lithium battery recycling according to claim 1, characterized in that: The crushing mechanism includes a crushing motor (4) fixed to the front surface of the crushing box (1). The output shaft of the crushing motor (4) is fixed with a driving sprocket (5). The outer surface of the driving sprocket (5) is drivingly connected with a transmission chain (6). The other end of the transmission chain (6) is drivingly connected with a driven sprocket (7). A rotating shaft (8) is fixed inside the driven sprocket (7). A first gear (9) is also fixed to the outer surface of the rotating shaft (8). A second gear (10) is meshed with the right end of the first gear (9). A rotating rod (11) is fixed inside the second gear (10). The left ends of the rotating rod (11) and the rotating shaft (8) both penetrate and extend into the interior of the crushing box (1) and are rotatably connected thereto through bearings. Crushing rollers (12) are fixed to the outer surfaces of the rotating rod (11) and the rotating shaft (8).

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