Lithium battery crushing and recycling machine with electrolyte recycling function

Abstract

The invention belongs to the technical field of lithium battery crushing, and particularly relates to a lithium battery crushing and recycling machine with an electrolyte recycling function, which comprises a feeding module, a separation module and a servo motor which are mounted on an outer support rod, the feeding module is rotationally connected with the separating module, and the feeding module is located at the highest position. The servo motor is located at the lowest position, the output end of the servo motor is fixedly connected with a transmission shaft, and the transmission shaft penetrates through the feeding module and is collinear with the axis of the feeding module; by obliquely arranging the separation module, after the waste lithium battery is fed into the feeding module, crushed solid particles and electrolyte can flow and move downwards under the action of self gravity, when the waste lithium battery enters the separation module, the separation module is driven to rotate by utilizing a servo motor, the separation of the electrolyte and the solid particles can be accelerated, and then the separation module is driven to rotate by utilizing a servo motor. And the solid particles are separated from the first sieve plate by matching the rolling ball body with the guide plate, so that the flowing and recovery of the electrolyte are accelerated until the electrolyte flows to the bottom of the second pipe body.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery crushing, and specifically relates to a lithium battery crushing and recycling machine with an electrolyte recovery function. Background Art

[0002] Lithium-ion batteries are important electronic basic products and important pillars for the development of emerging industries such as new energy and new energy electric vehicles. After the service life of lithium-ion batteries ends, a large number of waste batteries will be generated. The waste lithium batteries contain a large amount of non-renewable and highly economically valuable metal resources, which need to be reused.

[0003] A Chinese patent with the publication number CN117798168A discloses a lithium battery crushing and recycling machine with an electrolyte recovery function, including a recycling box, and also including a processing device, a recycling device, an extrusion device, a cleaning device, and a crushing device; the processing device includes a feeding box, a motor 1, a crushing roller, a gear, and a filter plate. The feeding box is fixedly connected to the top of the recycling box, the motor 1 is fixedly connected to the front of the feeding box, the crushing roller is rotatably connected to the inner wall of the feeding box, the gear is fixedly connected to the rear of the crushing roller, and the filter plate is fixedly connected to the inner wall of the recycling box; the recycling device includes an inclined plate, a collection box, an inclined block, a rotating rod, and a cam. The inclined plate is movably connected to the inner wall of the recycling box, and the collection box is installed on the inner wall of the recycling box. Through the above technical solution, the problem that the electrolyte and the battery in the existing lithium batteries are not separated and classified for recycling is solved.

[0004] In the prior art, when recycling waste lithium batteries, it is usually necessary to crush the lithium batteries and recover the electrolyte in the lithium batteries. During the conventional recycling operation, when the lithium batteries are crushed, the electrolyte in the lithium batteries will be separated synchronously. Generally, a sieve plate is used for filtration to obtain the separated electrolyte. However, in the actual application stage, in the conventional crushing method, during the separation of the lithium batteries and the electrolyte, the crushed solid particles will block the sieve plate, resulting in a slow penetration speed of the electrolyte, thereby affecting the recovery of the electrolyte in the lithium batteries;

[0005] Therefore, the present invention provides a lithium battery crushing and recycling machine with an electrolyte recovery function. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is: A lithium battery crushing and recycling machine with an electrolyte recovery function described in the present invention includes:

[0008] A feeding module, a separation module, and a servo motor installed on an outer support rod;

[0009] The feeding module is rotatably connected to the separation module, and the feeding module is located at the highest position;

[0010] The servo motor is located at the lowest position, and a transmission shaft is fixedly connected to the output end of the servo motor. The transmission shaft penetrates through the feeding module and is collinear with the axis of the feeding module;

[0011] The separation module includes a first pipe body, a second pipe body, and a guiding plate arranged inside the first pipe body; the first pipe body and the second pipe body are clamped and matched, and the first pipe body is rotatably connected to the feeding module; a first sieve plate and a second sieve plate are arranged inside the second pipe body, and a limiting rod is connected through between the first sieve plate and the second sieve plate; a second spring is fixedly connected between the first sieve plate and the second sieve plate; the guiding plate is arranged adjacent to the second sieve plate.

[0012] Preferably, a first ring plate is arranged in the middle of the first pipe body, and the guiding plate is arranged adjacent to the first ring plate; a support frame is fixedly connected to the first ring plate through a screw, and the transmission shaft penetrates through the center of the support frame.

[0013] Preferably, a second ring plate is arranged in the middle of the second pipe body, and a second sieve plate coaxial with the second pipe body is arranged adjacent to the second ring plate, and the first sieve plate and the second sieve plate are arranged at intervals; the second spring is sleeved outside the transmission shaft, and the two ends are respectively fixedly connected to the top surface of the first sieve plate and the bottom surface of the second sieve plate.

[0014] Preferably, a liquid discharge hole is further opened on the bottom side wall of the second pipe body, and a sealing component is arranged in the liquid discharge hole; a plurality of sealing components are arranged at the bottom of the second pipe body and are arranged in a circumferential array; outside the second pipe body and directly below the second pipe body, a liquid discharge pipe body is arranged, and a conical abutting rod arranged coaxially with the liquid discharge pipe body is arranged in the liquid discharge pipe body. When the separation module rotates with the servo motor and the transmission shaft, the sealing component at the bottom of the second pipe body contacts the conical abutting rod in the liquid discharge pipe body and is opened for liquid discharge.

[0015] Preferably, the sealing component includes a sealing plate, a connecting rod, and a conical abutting block; the sealing plate is matched with the liquid discharge hole for plugging the liquid discharge hole, and the connecting rod is fixedly connected to the side of the sealing plate facing the inside of the second pipe body; the conical abutting block is fixedly connected to the other side of the sealing plate and is in extrusion fit with the conical abutting rod.

[0016] Preferably, a baffle corresponding to the connecting rod is further fixedly connected to the bottom of the second pipe body. The connecting rod penetrates through the baffle, and a first spring is sleeved on the connecting rod; the two ends of the first spring are respectively fixedly connected to the opposite surfaces of the sealing plate and the baffle.

[0017] Preferably, the feeding module includes a feeding box. A feeding port is formed in the top of the feeding box, and two symmetrically arranged crushing rollers are rotatably connected inside the feeding box. The crushing rollers are rotatably connected to the side wall of the feeding box through rotating shafts; two transmission gears are rotatably connected outside the feeding box, and the two transmission gears are respectively sleeved on the two rotating shafts, and the two transmission gears are meshed with each other.

[0018] Preferably, a scraper is also slidably connected inside the feeding box, and the top of the scraper is in threaded fit with a ball screw through a ball nut. The ball screw is coaxially arranged with the transmission shaft; one end of the ball screw is inserted into the transmission shaft, and the other end is rotatably connected to the side wall of the feeding box.

[0019] Preferably, an arc-shaped groove is also formed in the inner side wall of the feeding box, and a slider is fixedly connected to the end of the scraper corresponding to the arc-shaped groove; the slider is slidably connected in the arc-shaped groove.

[0020] Preferably, a circular plate is fixedly connected to the transmission shaft, and the circular plate is in clamping fit with the bottom surface of the second pipe body; arc-shaped brackets are sleeved on the outer side walls of the first pipe body and the second pipe body, and the arc-shaped brackets are fixedly connected to the outer support rods.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. For the lithium battery crushing and recycling machine with an electrolyte recovery function of the present invention, by arranging the separation module obliquely, after the waste lithium battery is put into the feeding module, the crushed solid particles and electrolyte can flow and move downward under their own gravity. When entering the separation module, the separation module is driven to rotate by a servo motor, which can accelerate the separation of the electrolyte from the solid particles. Subsequently, the rolling spheres cooperate with the guiding plate to enable the solid particles to break away from the first sieve plate, accelerating the flow and recovery of the electrolyte until the electrolyte flows to the bottom of the second pipe body and waits for recovery.

[0023] 2. For the lithium battery crushing and recycling machine with an electrolyte recovery function of the present invention, by arranging the second sieve plate adjacent to the second ring plate, the downward displacement of the second sieve plate can be effectively prevented. The first sieve plate and the second sieve plate are arranged at intervals, which can effectively separate the electrolyte and solid particles. And the first sieve plate and the second sieve plate are slidably connected through a limiting rod. Even when the sphere rolls and hits the first sieve plate, the vibration and displacement of the first sieve plate will not cause the second sieve plate to displace downward. And in cooperation with the second spring sleeved on the transmission shaft, when the first sieve plate is displaced by extrusion, the second spring can be compressed and provide elastic potential energy to enable the first sieve plate to reset, thereby helping the blocked sieve holes on the first sieve plate to be reopened. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 is the perspective view of the present invention; [[ID=,5]]

[0026] Figure 2 is the top view of the present invention;

[0027] Figure 3 is Figure 2 the sectional view at the position A - A in

[0028] Figure 4 is the partial sectional view of the present invention;

[0029] Figure 5 is the partial sectional perspective view of the present invention;

[0030] Figure 6 is Figure 5 the enlarged view at position a in

[0031] Figure 7 is the mating diagram of the transmission shaft with the first sieve plate, the second sieve plate and the scraper in the present invention;

[0032] Figure 8 is the mating diagram of the drain pipe body with the sealing assembly in the present invention.

[0033] In the figures: 1, feeding module; 10, feeding box; 101, feeding port; 102, arc groove; 11, crushing roller; 111, rotating shaft; 112, transmission gear; 12, ball screw; 13, scraper; 2, separation module; 20, first pipe body; 201, first ring plate; 202, guiding plate; 21, second pipe body; 211, second ring plate; 212, baffle; 213, drain hole; 22, sealing assembly; 221, sealing plate; 222, connecting rod; 223, conical abutting block; 224, first spring; 23, first sieve plate; 24, second sieve plate; 25, support frame; 26, second spring; 27, limiting rod; 30, outer support rod; 31, arc bracket; 40, servo motor; 41, transmission shaft; 411, circular plate; 50, drain pipe body; 501, conical abutting rod. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] Such as Figures 1 to 4As shown in the figure, a lithium battery crushing and recycling machine with an electrolyte recovery function according to an embodiment of the present invention includes a feeding module 1, a separation module 2, and a servo motor 40 mounted on an outer support rod 30; the feeding module 1 is rotatably connected to the separation module 2, and the feeding module 1 is located at the highest position; the servo motor 40 is located at the lowest position, and a transmission shaft 41 is fixedly connected to the output end of the servo motor 40. The transmission shaft 41 penetrates through the feeding module 1 and is collinear with the axis of the feeding module 1; the separation module 2 includes a first pipe body 20, a second pipe body 21, and a guiding plate 202 arranged inside the first pipe body 20; the first pipe body 20 and the second pipe body 21 are snap-fitted, and the first pipe body 20 is rotatably connected to the feeding module 1; a first sieve plate 23 and a second sieve plate 24 are arranged inside the second pipe body 21, and a limiting rod 27 is connected through between the first sieve plate 23 and the second sieve plate 24; a second spring 26 is fixedly connected between the first sieve plate 23 and the second sieve plate 24; the guiding plate 202 is arranged adjacent to the second sieve plate 24.

[0036] In the prior art, when recycling waste lithium batteries, it is usually necessary to crush the lithium batteries and recover the electrolyte inside the lithium batteries. During the conventional recycling operation, when the lithium batteries are crushed, the electrolyte in the lithium batteries will be separated synchronously. Generally, a sieve plate is used for filtration to obtain the separated electrolyte. However, in the actual application stage, in the conventional crushing method, during the separation process of the lithium batteries and the electrolyte, the crushed solid particles will block the sieve plate, resulting in a slow penetration speed of the electrolyte, thereby affecting the recovery of the electrolyte in the lithium batteries.

[0037] In an embodiment of the present invention, replacing the traditional lithium battery crushing equipment, an obliquely arranged crushing device is adopted. The recycled waste lithium batteries are input from the feeding module 1. After crushing, the crushed lithium batteries and the electrolyte inside will fall and flow downward under their own gravity to the separation module 2. In the separation module 2 controlled by the servo motor 40 to rotate, when solid particles and electrolyte enter, the rotating separation module 2 can apply centrifugal force to the solid particles and electrolyte, so that the electrolyte attached to the solid particles can be quickly separated from the solid particles. And under the action of its own gravity, the lithium battery solid particles and electrolyte will continue to migrate downward. Specifically, when the solid particles and electrolyte enter the first pipe body 20, they are quickly separated under the action of centrifugal force. Then, when about to enter the second pipe body 21, the solid particles will be intercepted by the first sieve plate 23, and the electrolyte will continue to migrate downward through the sieve holes on the first sieve plate 23 into the second pipe body 21. As described above, since the sizes of the crushed solid particles are different, the relatively small solid particles will block the sieve holes, resulting in a slower penetration rate of the electrolyte, thereby affecting the overall separation efficiency and electrolyte recovery efficiency. In one embodiment, a large number of spheres are placed in the first pipe body 20, specifically at the top of the first sieve plate 23. During the rotation of the first pipe body 20 and the second pipe body 21 along the transmission shaft 41, the spheres in the first pipe body 20 will be affected and rotate together in the first pipe body 20. And because the separation module 2 is obliquely arranged, when the spheres are driven to the vicinity of the inner top of the first pipe body 20, the centrifugal force is less than the gravity of the spheres themselves, and the spheres will fall freely and then fall to the bottom of the first pipe body 20, specifically falling to the bottom of the first pipe body 20 and contacting and pounding the first sieve plate 23. This cycle repeats. Along with the continuous lifting and falling of the spheres, the surface of the first sieve plate 23 can be continuously pounded by the spheres, so that the fine solid particles that may exist in the sieve holes on the surface of the first sieve plate 23 can be separated from the sieve holes, achieving the purpose of dredging the sieve holes on the surface of the first sieve plate 23, accelerating the recovery and flow of the electrolyte. Based on the above, in one embodiment, by obliquely arranging the separation module 2, after the waste lithium batteries are input into the feeding module 1, the crushed solid particles and electrolyte can flow and move downward under their own gravity. When entering the separation module 2, the servo motor 40 is used to drive the separation module 2 to rotate, which can accelerate the separation of the electrolyte and solid particles. Subsequently, the rolling spheres are used in cooperation with the guide plate 202 to make the solid particles break away from the first sieve plate 23, accelerating the flow and recovery of the electrolyte until the electrolyte flows to the bottom of the second pipe body 21 and waits for recovery;

[0038] It should be noted that, in an embodiment of the present invention, a guiding plate 202 is provided on the inner side wall of the first pipe body 20. After the first pipe body 20 rotates, the guiding plate 202 can drive the sphere to rise to the inner top of the first pipe body 20, and subsequently, by means of the inclined guiding plate 202, the sphere can roll and fall on the first sieve plate 23, thereby vibrating and pounding the first sieve plate 23, accelerating the separation of the solid particles blocked on the first sieve plate 23 from the first sieve plate 23.

[0039] As Figures 1 to 4 shown, a first ring plate 201 is provided in the middle of the first pipe body 20, and the guiding plate 202 is arranged adjacent to the first ring plate 201; a support frame 25 is fixedly connected to the first ring plate 201 through a screw, and the transmission shaft 41 penetrates through the center of the support frame 25.

[0040] In one embodiment, a first ring plate 201 is provided inside the first pipe body 20 for fixing the support frame 25. The transmission shaft 41 penetrates into the separation module 2 from the bottom center of the second pipe body 21, and its top extends into the first pipe body 20. In order to prevent the transmission shaft 41 from shaking, a support frame 25 is provided inside the first pipe body 20, which can provide effective support for the transmission shaft 41. Thus, after the servo motor 40 is started, the separation module 2 can be driven to rotate stably by means of the transmission shaft 41, accelerating the separation of solid particles from the electrolyte.

[0041] As Figures 1 to 4 shown, a second ring plate 211 is provided in the middle of the second pipe body 21, and a second sieve plate 24 coaxial with the second pipe body 21 is arranged adjacent to the second ring plate 211. The first sieve plate 23 and the second sieve plate 24 are arranged at intervals; the second spring 26 is sleeved outside the transmission shaft 41, and its two ends are respectively fixedly connected to the top surface of the first sieve plate 23 and the bottom surface of the second sieve plate 24.

[0042] As described above, the purpose of arranging the second ring plate 211 in the second pipe body 21 is to load the first sieve plate 23 and the second sieve plate 24. Specifically, the second sieve plate 24 is arranged adjacent to the second ring plate 211, and it can effectively prevent the second sieve plate 24 from moving downward. The first sieve plate 23 and the second sieve plate 24 are arranged at intervals, which can effectively separate the electrolyte and solid particles. And the first sieve plate 23 and the second sieve plate 24 are slidably connected through a limiting rod 27. Even when the sphere rolls and pounds on the first sieve plate 23, the vibration and displacement of the first sieve plate 23 will not cause the second sieve plate 24 to move downward. And in cooperation with the second spring 26 sleeved on the transmission shaft 41, when the first sieve plate 23 is displaced by extrusion, the second spring 26 can be compressed and provide elastic potential energy to reset the first sieve plate 23, thereby helping the blocked sieve holes on the first sieve plate 23 to be reopened.

[0043] As Figures 1 to 6 、 Figure 8As shown, a liquid discharge hole 213 is further formed in the bottom side wall of the second tube body 21, and a sealing assembly 22 is arranged in the liquid discharge hole 213; a plurality of sealing assemblies 22 are arranged at the bottom of the second tube body 21 and are arranged in a circumferential array; a liquid discharge tube body 50 is arranged outside the second tube body 21 and directly below the second tube body 21, and a conical abutting rod 501 arranged coaxially with the liquid discharge tube body 50 is arranged in the liquid discharge tube body 50. When the separation module 2 rotates with the servo motor 40 and the transmission shaft 41, the sealing assembly 22 at the bottom of the second tube body 21 contacts the conical abutting rod 501 in the liquid discharge tube body 50 and is opened for liquid discharge.

[0044] When the electrolyte flows to the bottom of the second tube body 21, with the continuous crushing of the waste lithium battery and the continuous separation of the electrolyte from the solid particles, more and more electrolyte will accumulate at the bottom of the second tube body 21. In order to prevent excessive accumulation of the electrolyte from affecting the subsequent electrolyte separation, it is necessary to timely discharge the separated electrolyte. A plurality of liquid discharge holes 213 arranged in a circumferential array are formed at the bottom of the second tube body 21, and a sealing assembly 22 is arranged in the liquid discharge holes 213. When the separation module 2 rotates with the servo motor 40 and the transmission shaft 41, the sealing assembly 22 arranged at the bottom of the second tube body 21 also rotates therewith. It should be noted that after the sealing assembly 22 rotates, it will intermittently contact the liquid discharge tube body 50 arranged directly below the second tube body 21, and when the sealing assembly 22 just contacts the conical abutting rod 501 in the liquid discharge tube body 50, the sealing assembly 22 will be opened. At this time, the separated electrolyte can be discharged from the bottom of the second tube body 21 through the liquid discharge holes 213 and transferred through the liquid discharge tube body 50. It should be noted that in an embodiment of the present invention, the fixing method of the liquid discharge tube body 50 is not disclosed, and it can be connected to the bottom of any box body with a storage function, and the positions of the liquid discharge tube body 50 and the sealing assembly 22 on the second tube body 21 are as described above.

[0045] As Figures 1 to 6 As shown, the sealing assembly 22 includes a sealing plate 221, a connecting rod 222 and a conical abutting block 223; the sealing plate 221 cooperates with the liquid discharge hole 213 to block the liquid discharge hole 213, the connecting rod 222 is fixedly connected to the side of the sealing plate 221 facing the inside of the second tube body 21; the conical abutting block 223 is fixedly connected to the other side of the sealing plate 221 and is in extrusion fit with the conical abutting rod 501.

[0046] After the second pipe body 21 rotates with the servo motor 40 and the transmission shaft 41, the sealing assembly 22 will intermittently contact the liquid discharge pipe body 50, and under the action of the conical abutting rod 501, the sealing assembly 22 will be temporarily opened, so as to complete the liquid discharge. Specifically, after the second pipe body 21 rotates, the sealing assembly 22 at its bottom will contact the conical abutting rod 501. Specifically, the conical abutting block 223 at the bottom of the sealing assembly 22 will contact the conical abutting rod 501, and under the extrusion fit, the conical abutting block 223 will displace towards the central axis direction of the second pipe body 21. When the conical abutting block 223 displaces inwards, it will drive the sealing plate 221 and the connecting rod 222 to displace synchronously, so that the sealing plate 221 changes from being sealingly connected to the liquid discharge hole 213 in the initial state to being separated from the liquid discharge hole 213. At this time, the inside of the second pipe body 21 communicates with the outside through the liquid discharge hole 213, and thus the electrolyte in the second pipe body 21 can be discharged and collected and transferred through the liquid discharge pipe body 50;

[0047] It should be noted that in one embodiment, the conical abutting rod 501 in the liquid discharge pipe body 50 is fixedly connected to the liquid discharge pipe body 50 through a bracket, and is arranged coaxially with the liquid discharge pipe body 50 and has a fixed position. In addition, symmetrical inclined surfaces are provided at the ends of the conical abutting rod 501 and the conical abutting block 223. At the same time, two symmetrical notches are provided at the top of the liquid discharge pipe body 50 corresponding to the conical abutting rod 501 for the conical abutting block 223 to pass through. When the second pipe body 21 rotates, it drives the sealing assembly 22 to rotate. When the sealing assembly 22 passes through the liquid discharge pipe body 50, the conical abutting block 223 at its bottom can pass through the notch and contact the hammer-shaped abutting rod. Under the cooperation of the inclined surfaces, the conical abutting block 223 contracts inwards, thereby opening the liquid discharge hole 213 and completing the transfer of the electrolyte.

[0048] As Figures 1 to 6 shown, a baffle 212 corresponding to the connecting rod 222 is also fixedly connected to the bottom of the second pipe body 21. The connecting rod 222 penetrates through the baffle 212, and a first spring 224 is sleeved on the connecting rod 222; both ends of the first spring 224 are fixedly connected to the opposite surfaces of the sealing plate 221 and the baffle 212.

[0049] It should be noted that in order to enable the radial displacement of the sealing plate 221 and the conical abutting block 223, a baffle 212 is provided at the bottom of the second tube body 21. When the conical abutting block 223 is squeezed by the conical abutting rod 501 and contracts inward, the connecting rod 222 can slide in the baffle 212 to ensure the radial displacement of the conical abutting block 223 and the sealing plate 221. Cooperating with the first spring 224 on the connecting rod 222, when the conical abutting block 223 is no longer squeezed by the conical abutting rod 501, it can assist the sealing plate 221 to reset, so as to reset the liquid discharge hole 213 again; it should be noted that in an embodiment of the present invention, multiple sealing components 22 are arranged in a circumferential array. Considering that the transfer frequency of the electrolyte does not need to be too fast, the number of the sealing components 22 and the liquid discharge holes 213 can be appropriately changed, for example, two are set and symmetrically arranged.

[0050] As Figures 1 to 2 shown, the feeding module 1 includes a feeding box 10. A feeding port 101 is opened at the top of the feeding box 10, and two symmetrically arranged crushing rollers 11 are rotatably connected inside the feeding box 10. The crushing rollers 11 are rotatably connected to the side wall of the feeding box 10 through rotating shafts 111; two transmission gears 112 are rotatably connected outside the feeding box 10, and the two transmission gears 112 are respectively sleeved on the two rotating shafts 111, and the two transmission gears 112 are meshed with each other.

[0051] In an embodiment of the present invention, when the waste lithium battery is put into the feeding module 1, specifically into the inside of the feeding box 10, it will be crushed by the two symmetrically arranged crushing rollers 11. At this time, the electrolyte seeps out, and then the solid particles and the electrolyte will move downward under the action of their own gravity to the separation module 2.

[0052] As Figures 1 to 7 shown, a scraper 13 is also slidably connected inside the feeding box 10, and the top of the scraper 13 is threadedly matched with a ball screw 12 through a ball nut. The ball screw 12 is arranged coaxially with the transmission shaft 41; one end of the ball screw 12 is inserted into the transmission shaft 41, and the other end is rotatably connected to the side wall of the feeding box 10.

[0053] After the solid particles are crushed, they may not be able to fall into the separation module 2 in an orderly manner under the action of their own gravity due to their size and shape, resulting in some solid particles and electrolyte remaining at the bottom of the feed box 10, thereby affecting the subsequent crushing of the waste lithium batteries. A scraper 13 is also provided in the feed box 10, which can be used to scrape the bottom of the feed box 10 back and forth, thereby maintaining the cleanliness of the bottom of the feed box 10, which is beneficial to the migration of solid particles and electrolyte after the subsequent crushing of the waste lithium batteries. It can be understood that if the solid particles and electrolyte are not cleaned, they will remain at the bottom of the feed box 10. Accumulation at the bottom of the box 10 may cause blockage, resulting in the accumulation of a large amount of solid particles, affecting the migration of solid particles and electrolyte. Specifically, the ball screw 12 is inserted into the top of the transmission shaft 41. When the transmission shaft 41 rotates, the ball screw 12 can be driven to rotate. The cooperation between the ball screw 12 and the ball nut can drive the scraper 13 to slide back and forth at the bottom of the feed box 10 (the ball screw 12 is provided with a reciprocating thread), so that the solid particles and electrolyte adhered to the bottom of the feed box 10 can be cleaned in time, which is beneficial to the migration of solid particles and electrolyte after the subsequent crushing of the waste lithium batteries.

[0054] like Figures 1 to 5 As shown, an arc-shaped groove 102 is further provided on the inner side wall of the feed box 10 , and a slider is fixedly connected to the end of the scraper 13 corresponding to the arc-shaped groove 102 ; the slider is slidably connected in the arc-shaped groove 102 .

[0055] Since the scraper 13 can only reciprocate at the bottom of the feed box 10 under the cooperation of the ball screw 12 and the ball nut, and the scraper 13 has a certain width, it always slides at the bottom of the feed box 10, and with the continuous crushing of the waste lithium batteries, some solid particles will inevitably always stay on the side of the scraper 13 away from the separation module 2. Therefore, when the scraper 13 is driven by the ball nut to the feed box 10 close to one end of the first tube body 20, the slider at the end of the scraper 13 will slide in the arc groove 102 and complete the rotation at the same time. This rotation is the rotation of the scraper 13 around the ball screw 12. It can be understood that when the scraper 13 is displaced to close to the first tube body 20, the scraper 13 will rotate around the ball screw 12, so that its bottom is separated from the inner bottom surface of the feed box 10, thereby allowing some solid particles to fall into the separation module 2 under the action of their own gravity.

[0056] like Figures 1 to 8 As shown, a circular plate 411 is fixedly connected to the transmission shaft 41, and the circular plate 411 is snap-fitted with the bottom surface of the second tube body 21; an arc-shaped bracket 31 is sleeved on the outer wall of the first tube body 20 and the second tube body 21, and the arc-shaped bracket 31 is fixedly connected to the outer support rod 30.

[0057] In an embodiment of the present invention, the transmission shaft 41 is fixedly connected to the separation module 2. It can be understood that a screw is provided on the bottom surface of the second pipe body 21, the screw penetrates through the circular plate 411, and then the nut is tightened to complete the fixed connection between the transmission shaft 41 and the separation module 2.

[0058] Working principle: Instead of traditional lithium battery crushing equipment, an obliquely arranged crushing device is adopted. The recycled waste lithium batteries are put into the feeding module 1. After crushing, the crushed lithium batteries and the electrolyte inside them will fall and flow downward under their own gravity to the separation module 2. In the separation module 2 controlled by the servo motor 40 to rotate, when solid particles and electrolyte enter, the rotating separation module 2 can apply centrifugal force to the solid particles and electrolyte, so that the electrolyte attached to the solid particles is quickly separated from the solid particles. And under the action of its own gravity, the lithium battery solid particles and electrolyte will continue to migrate downward. Specifically, when the solid particles and electrolyte enter the first pipe body 20, they are quickly separated under the action of centrifugal force. Subsequently, when about to enter the second pipe body 21, the solid particles will be intercepted by the first sieve plate 23, and the electrolyte will continue to migrate downward through the sieve holes on the first sieve plate 23 into the second pipe body 21. As described above, since the sizes of the crushed solid particles are different, the relatively small solid particles will block the sieve holes, resulting in a slower penetration rate of the electrolyte, thereby affecting the overall separation efficiency and electrolyte recovery efficiency. In one embodiment, a large number of spheres are placed in the first pipe body 20, specifically at the top of the first sieve plate 23. During the rotation of the first pipe body 20 and the second pipe body 21 with the transmission shaft 41, the spheres in the first pipe body 20 will be affected and rotate together in the first pipe body 20. And because the separation module 2 is obliquely arranged, when the spheres are driven to the vicinity of the inner top of the first pipe body 20, the centrifugal force is less than the gravity of the spheres themselves, and the spheres will fall freely and then fall to the bottom of the first pipe body 20, specifically fall to the bottom of the first pipe body 20 and contact and beat the first sieve plate 23. This process repeats. Along with the continuous lifting and falling of the spheres, the surface of the first sieve plate 23 can be continuously beaten by the spheres, so as to separate the fine solid particles that may exist in the sieve holes on the surface of the first sieve plate 23 from the sieve holes, achieving the purpose of dredging the sieve holes on the surface of the first sieve plate 23, accelerating the recovery and flow of the electrolyte. Based on the above, by obliquely arranging the separation module 2, after the waste lithium batteries are put into the feeding module 1, the crushed solid particles and electrolyte can flow and move downward under their own gravity. When entering the separation module 2, the servo motor 40 is used to drive the separation module 2 to rotate, which can accelerate the separation of the electrolyte and solid particles. Subsequently, the rolling spheres are used in cooperation with the guide plate 202 to make the solid particles break away from the first sieve plate 23, accelerating the flow and recovery of the electrolyte until the electrolyte flows to the bottom of the second pipe body 21 and waits for recovery;

[0059] It should be noted that a guide plate 202 is provided on the inner side wall of the first tube body 20. After the first tube body 20 rotates, this guide plate 202 can drive the sphere to rise to the inner top of the first tube body 20, and subsequently, by using the inclined guide plate 202, the sphere can roll and fall on the first sieve plate 23, thereby vibrating and hammering the first sieve plate 23 to accelerate the separation of the solid particles blocked on the first sieve plate 23 from the first sieve plate 23; a second ring plate 211 is arranged in the second tube body 21, and its purpose is to load the first sieve plate 23 and the second sieve plate 24. Specifically, the second sieve plate 24 is arranged adjacent to the second ring plate 211 and can effectively prevent the second sieve plate 24 from moving downward. The first sieve plate 23 and the second sieve plate 24 are arranged at intervals, which can effectively separate the electrolyte and solid particles. And the first sieve plate 23 and the second sieve plate 24 are slidably connected by a limiting rod 27. Even when the sphere rolls and hammers on the first sieve plate 23, the vibration and displacement of the first sieve plate 23 will not cause the second sieve plate 24 to move downward. And in cooperation with the second spring 26 sleeved on the transmission shaft 41, when the first sieve plate 23 is displaced due to extrusion, the second spring 26 can be compressed and provide elastic potential energy to enable the first sieve plate 23 to reset, thereby helping the blocked sieve holes on the first sieve plate 23 to be reopened.

[0060] When the electrolyte flows to the bottom of the second tube body 21, with the continuous crushing of the waste lithium battery and the continuous separation of the electrolyte and solid particles, more and more electrolyte will accumulate at the bottom of the second tube body 21. In order to avoid excessive accumulation of the electrolyte affecting the subsequent electrolyte separation, it is necessary to timely discharge the separated electrolyte. A plurality of drain holes 213 arranged in a circumferential array are opened at the bottom of the second tube body 21, and a sealing component 22 is arranged in the drain holes 213. When the separation module 2 rotates with the servo motor 40 and the transmission shaft 41, the sealing component 22 arranged at the bottom of the second tube body 21 also rotates accordingly. It should be noted that after the sealing component 22 rotates, it will intermittently contact the drain pipe body 50 arranged directly below the second tube body 21. And when the sealing component 22 just contacts the conical abutting rod 501 in the drain pipe body 50, the sealing component 22 will be opened. At this time, the separated electrolyte at the bottom of the second tube body 21 can be discharged through the drain holes 213 and transferred through the drain pipe body 50. It should be noted that the fixing method of the drain pipe body 50 is not disclosed in an embodiment of the present invention. It can be connected to the bottom of any box body with a storage function, and the position of the drain pipe body 50 and the sealing component 22 on the second tube body 21 is as described above.

[0061] After the second pipe body 21 rotates with the servo motor 40 and the transmission shaft 41, the sealing assembly 22 will intermittently contact the liquid discharge pipe body 50, and under the action of the conical abutting rod 501, the sealing assembly 22 will be temporarily opened, so as to complete the liquid discharge. Specifically, after the second pipe body 21 rotates, the sealing assembly 22 at its bottom will contact the conical abutting rod 501. Specifically, the conical abutting block 223 at the bottom of the sealing assembly 22 will contact the conical abutting rod 501, and under the extrusion fit, the conical abutting block 223 will displace towards the central axis direction of the second pipe body 21. When the conical abutting block 223 displaces inwards, it will drive the sealing plate 221 and the connecting rod 222 to displace synchronously, so that the sealing plate 221 changes from being sealingly connected to the liquid discharge hole 213 in the initial state to being separated from the liquid discharge hole 213. At this time, the inside of the second pipe body 21 communicates with the outside through the liquid discharge hole 213, and thus the electrolyte in the second pipe body 21 can be discharged and collected and transferred through the liquid discharge pipe body 50;

[0062] It should be noted that the conical abutting rod 501 in the liquid discharge pipe body 50 is fixedly connected to the liquid discharge pipe body 50 through a bracket, and is arranged coaxially with the liquid discharge pipe body 50 and has a fixed position. In addition, symmetric inclined surfaces are provided at the ends of the conical abutting rod 501 and the conical abutting block 223. At the same time, two symmetric notches are provided at the top of the liquid discharge pipe body 50 corresponding to the conical abutting rod 501 for the conical abutting block 223 to pass through. When the second pipe body 21 rotates, it drives the sealing assembly 22 to rotate. When the sealing assembly 22 passes through the liquid discharge pipe body 50, the conical abutting block 223 at its bottom can pass through the notch and contact the hammer-shaped abutting rod. Under the cooperation of the inclined surface, the conical abutting block 223 contracts inwards, thus opening the liquid discharge hole 213 and completing the transfer of the electrolyte.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery crushing and recycling machine with an electrolyte recycling function, characterized in that: Comprising: A feeding module (1), a separation module (2) and a servo motor (40) mounted on an outer support rod (30); The feeding module (1) is rotatably connected to the separation module (2), and the feeding module (1) is located at the highest position; The servo motor (40) is located at the lowest position, and a transmission shaft (41) is fixedly connected to the output end of the servo motor (40). The transmission shaft (41) penetrates through the feeding module (1) and is collinear with the axis of the feeding module (1); The separation module (2) includes a first pipe body (20), a second pipe body (21) and a guiding plate (202) arranged inside the first pipe body (20); The first pipe body (20) and the second pipe body (21) are snap-fitted, and the first pipe body (20) is rotatably connected to the feeding module (1); A first sieve plate (23) and a second sieve plate (24) are arranged in the second pipe body (21), and a limiting rod (27) is connected through between the first sieve plate (23) and the second sieve plate (24); A second spring (26) is fixedly connected between the first sieve plate (23) and the second sieve plate (24); The guiding plate (202) is arranged adjacent to the second sieve plate (24).

2. The lithium battery crushing and recycling machine with an electrolyte recycling function according to claim 1, wherein: A first ring plate (201) is arranged in the middle of the first pipe body (20), and the guiding plate (202) is arranged adjacent to the first ring plate (201); A support frame (25) is fixedly connected to the first ring plate (201) through a screw, and the transmission shaft (41) penetrates through the center of the support frame (25).

3. The lithium battery crushing and recycling machine with an electrolyte recycling function according to claim 2, characterized in that: A second ring plate (211) is arranged in the middle of the second pipe body (21), and the second sieve plate (24) coaxial with the second pipe body (21) is arranged adjacent to the second ring plate (211), and the first sieve plate (23) and the second sieve plate (24) are arranged at intervals; The second spring (26) is sleeved outside the transmission shaft (41), and the two ends are respectively fixedly connected to the top surface of the first sieve plate (23) and the bottom surface of the second sieve plate (24).

4. A lithium battery crushing and recycling machine with an electrolyte recycling function according to claim 3, characterized in that: A drain hole (213) is further opened on the bottom side wall of the second pipe body (21), and a sealing component (22) is arranged in the drain hole (213); A plurality of sealing components (22) are arranged at the bottom of the second pipe body (21) and are arranged in a circumferential array; Outside the second pipe body (21) and directly below the second pipe body (21), a drain pipe body (50) is arranged. A conical abutting rod (501) coaxial with the drain pipe body (50) is arranged in the drain pipe body (50). When the separation module (2) rotates with the servo motor (40) and the transmission shaft (41), the sealing component (22) at the bottom of the second pipe body (21) contacts the conical abutting rod (501) in the drain pipe body (50) and is opened for draining.

5. A lithium battery crushing and recycling machine with an electrolyte recovery function according to claim 4, characterized in that: The sealing assembly (22) includes a sealing plate (221), a connecting rod (222), and a conical abutting block (223); the sealing plate (221) cooperates with the liquid discharge hole (213) to block the liquid discharge hole (213), and the connecting rod (222) is fixedly connected to the side of the sealing plate (221) facing the inside of the second pipe body (21); the conical abutting block (223) is fixedly connected to the other side of the sealing plate (221) and is in extrusion fit with the conical abutting rod (501).

6. The lithium battery crushing and recycling machine with an electrolyte recovery function according to claim 5, characterized in that: A baffle (212) corresponding to the connecting rod (222) is further fixedly connected to the bottom of the second pipe body (21), the connecting rod (222) penetrates through the baffle (212), and a first spring (224) is sleeved on the connecting rod (222); both ends of the first spring (224) are fixedly connected to the opposite surfaces of the sealing plate (221) and the baffle (212).

7. A lithium battery crushing and recycling machine with an electrolyte recovery function according to claim 6, characterized in that: The feeding module (1) includes a feeding box (10), a feeding port (101) is opened at the top of the feeding box (10), and two symmetrically arranged crushing rollers (11) are rotatably connected inside the feeding box (10), and the crushing rollers (11) are rotatably connected to the side wall of the feeding box (10) through rotating shafts (111); two transmission gears (112) are rotatably connected outside the feeding box (10), and the two transmission gears (112) are respectively sleeved on the two rotating shafts (111), and the two transmission gears (112) are meshed with each other.

8. A lithium battery crushing and recycling machine with an electrolyte recovery function according to claim 7, characterized in that: A scraper (13) is further slidably connected inside the feeding box (10), and the top of the scraper (13) is in threaded fit with a ball screw (12) through a ball nut, and the ball screw (12) is coaxially arranged with the transmission shaft (41); one end of the ball screw (12) is inserted into the transmission shaft (41), and the other end is rotatably connected to the side wall of the feeding box (10).

9. A lithium battery crushing and recycling machine with an electrolyte recycling function according to claim 8, characterized in that: An arc-shaped groove (102) is further opened on the inner side wall of the feeding box (10), and a slider is fixedly connected to the end of the scraper (13) corresponding to the arc-shaped groove (102); the slider is slidably connected in the arc-shaped groove (102).

10. A lithium battery crushing and recycling machine with an electrolyte recovery function according to claim 9, characterized in that: A circular plate (411) is fixedly connected to the transmission shaft (41), and the circular plate (411) is in clamping fit with the bottom surface of the second pipe body (21); an arc-shaped bracket (31) is sleeved on the outer side walls of the first pipe body (20) and the second pipe body (21), and the arc-shaped bracket (31) is fixedly connected to the outer support rod (30).

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