A recycling device and method for lithium iron phosphate battery

Abstract

The present invention relates to the technical field of recycling lithium iron phosphate batteries, and discloses a recycling device for lithium iron phosphate batteries, including a uniform feeding device, a conveying device and a crushing device, wherein the uniform feeding device is fixedly installed on the front upper surface of the conveying device, the crushing device is fixedly connected to the rear bottom outer surface of the conveying device, a collecting hopper is fixedly installed inside the uniform feeding device, a first support frame is fixedly connected to the bottom outer surface of the collecting hopper, both sides of the inner center edge of the collecting hopper are rotatably connected with a rotating shaft, the outer surface of the rotating shaft is uniformly welded with turning teeth, and a transmission shaft is rotatably connected to the bottom center of the collecting hopper. The present invention can facilitate uniform and automatic feeding of waste batteries by installing a uniform feeding device at one end of the conveying device, so that the batteries can be uniformly crushed inside the crushing device, and the effect of battery crushing can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling lithium iron phosphate batteries, and in particular to a recycling device and method for lithium iron phosphate batteries. Background Art

[0002] Lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate as the positive electrode material and carbon as the negative electrode material. The rated voltage of the single cell is 3.2V, and the charging cut-off voltage is 3.6V-3.65V. During the charging process, some lithium ions in the lithium iron phosphate are released, transferred to the negative electrode through the electrolyte, and embedded in the negative electrode carbon material; at the same time, electrons are released from the positive electrode and reach the negative electrode from the external circuit to maintain the balance of the chemical reaction. During the discharge process, lithium ions are released from the negative electrode and reach the positive electrode through the electrolyte. At the same time, the negative electrode releases electrons and reaches the positive electrode from the external circuit to provide energy to the outside world. Lithium iron phosphate batteries have the advantages of high operating voltage, high energy density, long cycle life, good safety performance, low self-discharge rate, and no memory effect. When the battery is scrapped, it cannot be discarded at will, so it is necessary to recycle the battery. When recycling the battery, it is necessary to use a battery recycling device to avoid polluting the environment.

[0003] However, the existing lithium iron phosphate battery recycling device still has the following problems when in use: the raw materials are directly poured into the device in batches, which is not convenient for uniform and automatic feeding of the batteries, which easily leads to the batteries not being uniformly crushed inside the crushing device, and at the same time affects the effect of battery crushing. Therefore, it is urgently necessary to provide a lithium iron phosphate battery recycling device and method to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide a recycling device and method for lithium iron phosphate batteries to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a recycling device for lithium iron phosphate batteries, comprising a uniform feeding device, a conveying device and a crushing device, wherein the uniform feeding device is fixedly mounted on the front upper surface of the conveying device, the crushing device is fixedly connected to the outer surface of the bottom rear end of the conveying device, a collecting hopper is fixedly mounted inside the uniform feeding device, a first supporting frame is fixedly connected to the outer surface of the bottom end of the collecting hopper, both sides of the inner center edge of the collecting hopper are rotatably clamped with a rotating shaft, the outer surface of the rotating shaft is uniformly welded with a turning tooth, and the bottom center of the collecting hopper is fixedly mounted on the outer surface of the bottom end of the collecting hopper. A transmission shaft is rotatably clamped, and a fourth transmission sprocket is fixedly installed on the outer surfaces of both ends of the rotating shaft, and the outer surfaces of both sides of the collecting hopper are fixedly connected to the limiting frames, and the first transmission sprockets are evenly fixedly installed on the outer surfaces of both ends of the transmission shaft, and the second transmission sprockets are fixedly installed on the outer surfaces of both ends of the transmission shaft and on the edges of the first transmission sprocket, and the third transmission sprockets are fixedly installed on the outer surfaces of both ends of the transmission shaft and on the edges of the second transmission sprocket, the outer surface of the third transmission sprocket is meshedly connected with the first transmission chain, and the outer surface of the second transmission sprocket is meshedly connected with the second transmission chain.

[0006] Preferably, a limit frame is fixedly installed inside the conveying device, a material guide plate is fixedly connected to the top outer surface of the limit frame, a conveyor belt is rotatably installed inside the limit frame, a first drive motor is fixedly installed on the outer surface of one side of the bottom end of the limit frame, and the outer surfaces of both sides of the bottom end of the limit frame are rotatably clamped with a fifth transmission sprocket, and the outer surface of the fifth transmission sprocket is meshingly connected with a third transmission chain.

[0007] Preferably, a support base is fixedly installed inside the crushing device, a second support frame is welded on the top of the support base, a conveyor belt is welded on the top of the second support frame, a crushing roller is symmetrically rotatably installed on the top inner side of the conveyor belt, one end outer surface of the crushing roller is fixedly connected with a sixth transmission sprocket, a third driving motor is fixedly installed on the upper outer surface of the conveyor belt, a limiting frame plate is symmetrically welded on the inner outer surface of the second support frame, plunger-type cylinders are fixedly installed on both sides of the bottom end of the conveyor belt, a filter frame is slidably connected to the bottom end surface of the conveyor belt, a filter screen is welded inside the filter frame, a flip plate is rotatably installed on one end surface of the filter frame, a limiting guide rail is fixedly installed on the middle part of the rear end of the support base, a second driving motor is fixedly installed on the outer surface of the middle part of the front end of the limiting guide rail, one end of the second driving motor is fixedly connected with a threaded rod, a collecting box is slidably installed on the upper surface of the limiting guide rail, rollers are fixedly connected to the four corners of the bottom end of the collecting box, and the outer surface of the sixth transmission sprocket is meshingly connected with the fourth transmission chain.

[0008] Preferably, a scraper barrel is fixedly installed on the middle outer surface of the transmission shaft, a battery slot is provided on the outer surface of the transmission shaft, a discharge port is provided at the center of the bottom surface of the collecting hopper, and the fifth transmission sprocket is meshed and connected with the first transmission sprocket through one end of the third transmission chain.

[0009] Preferably, the third transmission sprocket is rotationally connected to the fourth transmission sprocket through the first transmission chain, the second transmission sprocket is meshingly connected to the outer surface of another group of fourth transmission sprockets through the second transmission chain, and the two ends of the rotating shaft and the transmission shaft are respectively rotationally clamped with the side of the limit frame.

[0010] Preferably, one end of the first drive motor is rotatably connected to the conveyor belt inside the limit frame, the limit frame is clamped with the top side of the conveyor belt through a guide plate, and one end of the third drive motor is fixedly connected to one end of the crushing roller on the outer surface of the conveyor belt.

[0011] Preferably, a clamping plate is provided on the outer surface of the plunger type cylinder, and the plunger type cylinder is slidably clamped with the side surface of the filter frame via the clamping plate.

[0012] Preferably, one end of the plunger cylinder is fixedly connected to a side surface of one end of the filter frame, and the second drive motor is rotatably threadedly connected to the bottom of the collection box through a threaded rod.

[0013] Preferably, a shielding plate is rotatably mounted on the outer surface of the top end of the limiting frame.

[0014] A method for operating a lithium iron phosphate battery recycling device, comprising the following steps:

[0015] S1. First, load the lithium iron phosphate battery into the uniform feeding device, and then start the conveying device to make the conveyor belt rotate inside the limit frame. When the conveying device is running, the transmission shaft will be driven to rotate synchronously through the third transmission chain, so that the uniform feeding device can run synchronously;

[0016] S2. When the uniform feeding device is running, it will drive the two sets of internal shafts to rotate synchronously. When the shafts rotate inside the collecting hopper, the lithium iron phosphate batteries inside the collecting hopper will be turned over, thereby preventing the lithium iron phosphate batteries from accumulating inside the uniform feeding device. At the same time, the transmission shaft will drive the scraper barrel on the outer surface to rotate synchronously;

[0017] S3. When the scraper barrel rotates, the battery slot on the outer surface will drive the battery to rotate synchronously, so that the lithium iron phosphate battery is transported to the inside of the conveyor belt below, and the conveyor belt will transport the battery, so that the lithium iron phosphate battery is transported to the top of the crushing device;

[0018] S4. When the lithium iron phosphate battery enters the crushing device, the crushing roller will rotate to crush the lithium iron phosphate battery and discharge it to the upper surface of the filter. The filter will filter the metal shell inside the battery, and the material inside the lithium iron phosphate battery will fall into the collection box, thereby collecting the lithium iron phosphate battery material.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention sets two sets of rotating shafts inside the collecting hopper, which can turn over the batteries inside the collecting hopper to avoid the batteries from piling up and affecting the smoothness of the battery discharge from the collecting hopper. A transmission shaft is set at the bottom of the collecting hopper, which can rotate synchronously with the conveying device, so that the transmission shaft can evenly convey the batteries inside the collecting hopper and avoid the batteries from piling up on the upper surface of the conveyor belt. A filter frame and a collection box are set at the bottom of the conveyor belt to filter and collect the batteries crushed by the crushing device, thereby facilitating the classified collection of the crushed batteries.

[0021] 2. The present invention sets a limit frame plate on the outer surface of the second support frame to limit the sliding of both sides of the collection box, thereby preventing the collection box from remaining unstable when the limiting guide rail slides, and rollers are set on the bottom surface of the collection box to ensure that the collection box slides smoothly on the upper surface of the limiting guide rail. By installing a uniform feeding device at one end of the conveying device, it is convenient to uniformly and automatically feed the waste batteries, so that the batteries can be uniformly crushed inside the crushing device, and the battery crushing effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body in the present invention from the front perspective;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the left end perspective;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the main body in the present invention from a side perspective;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the right end face perspective;

[0027] Figure 5It is a schematic diagram of the three-dimensional structure of the uniform feeding device in the present invention from the front perspective;

[0028] Figure 6 It is a schematic diagram of a partially enlarged front perspective three-dimensional structure of point A in the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the conveying device in the present invention from the front perspective;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the crushing device in the present invention from the front perspective;

[0031] Fig. 9 This is a three-dimensional schematic diagram of the crushing device of the present invention from the rear side;

[0032] Fig.10 It is a perspective perspective diagram of a conveying device according to a second embodiment of the present invention.

[0033] In the figure: 1-uniform feeding device, 2-conveying device, 3-crushing device, 4-turning teeth, 5-rotating shaft, 6-collecting hopper, 7-first support frame, 8-transmission shaft, 9-first transmission chain, 10-first transmission sprocket, 11-second transmission sprocket, 12-third transmission sprocket, 13-second transmission chain, 14-limiting frame, 15-fourth transmission sprocket, 16-third transmission chain, 17-fifth transmission sprocket, 18-first drive motor, 19- Limiting frame, 20-guide plate, 21-conveyor belt, 22-fourth transmission chain, 23-second support frame, 24-second drive motor, 25-support base, 26-collection box, 27-limiting frame plate, 28-third drive motor, 29-sixth transmission sprocket, 30-crushing roller, 31-limiting guide rail, 32-plunger cylinder, 33-filter screen, 34-flip plate, 35-filter frame, 36-roller, 37-threaded rod, 38-shielding plate. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] The present invention is further described below in conjunction with the accompanying drawings.

[0037] Example 1

[0038] See also Figure 1-Figure 6 An embodiment of the present invention is as follows: a recycling device for lithium iron phosphate batteries, comprising a uniform feeding device 1, a conveying device 2 and a crushing device 3, wherein the uniform feeding device 1 is fixedly mounted on the front upper surface of the conveying device 2, the crushing device 3 is fixedly connected to the rear bottom outer surface of the conveying device 2, a collecting hopper 6 is fixedly mounted inside the uniform feeding device 1, a first supporting frame 7 is fixedly connected to the bottom outer surface of the collecting hopper 6, a rotating shaft 5 is rotatably connected to the edges of both sides of the inner center of the collecting hopper 6, a turning tooth 4 is uniformly welded on the outer surface of the rotating shaft 5, and a transmission shaft 8 is rotatably connected to the bottom center of the collecting hopper 6 A fourth transmission sprocket 15 is fixedly installed on the outer surfaces of both ends of the rotating shaft 5, and the outer surfaces of both sides of the collecting hopper 6 are fixedly connected to the limiting frame 14. The first transmission sprocket 10 is evenly fixedly installed on the outer surfaces of both ends of the transmission shaft 8, and the second transmission sprocket 11 is fixedly installed on the outer surfaces of both ends of the transmission shaft 8 and on the edge of the first transmission sprocket 10. The third transmission sprocket 12 is fixedly installed on the outer surfaces of both ends of the transmission shaft 8 and on the edge of the second transmission sprocket 11. The outer surface of the third transmission sprocket 12 is meshedly connected with the first transmission chain 9, and the outer surface of the second transmission sprocket 11 is meshedly connected with the second transmission chain 13.

[0039] See also Figure 7 A limit frame 19 is fixedly installed inside the conveying device 2, a material guide plate 20 is fixedly connected to the top outer surface of the limit frame 19, a conveyor belt 21 is rotatably installed inside the limit frame 19, a first drive motor 18 is fixedly installed on the outer surface of one side of the bottom end of the limit frame 19, and the outer surfaces of both sides of the bottom end of the limit frame 19 are rotatably clamped with the fifth transmission sprocket 17, and the outer surface of the fifth transmission sprocket 17 is meshingly connected with the third transmission chain 16.

[0040] See also Figure 8-Figure 9A support base 25 is fixedly installed inside the crushing device 3, a second support frame 23 is welded on the top of the support base 25, a conveyor belt 21 is welded on the top of the second support frame 23, a crushing roller 30 is symmetrically installed on the top of the conveyor belt 21, and a sixth transmission sprocket 22 is fixedly connected to the outer surface of one end of the crushing roller 30. A third drive motor 28 is fixedly installed on the upper outer surface of the conveyor belt 21. A limited position frame plate 27 is symmetrically welded on the inner outer surface of the second support frame 23. Plunger cylinders 32 are fixedly installed on both sides of the bottom end of the conveyor belt 21. The bottom end of the conveyor belt 21 A filter frame 35 is slidably connected to the surface, a filter screen 33 is welded inside the filter frame 35, a flip plate 34 is rotatably installed on one end surface of the filter frame 35, a limiting guide rail 31 is fixedly installed in the middle of the rear end of the support base 25, a second drive motor 24 is fixedly installed on the outer surface of the middle of the front end of the limiting guide rail 31, one end of the second drive motor 24 is fixedly connected to a threaded rod 37, a collection box 26 is slidably installed on the upper surface of the limiting guide rail 31, the four corners of the bottom end of the collection box 26 are fixedly connected to rollers 36, and the outer surface of the sixth transmission sprocket 22 is meshingly connected to the fourth transmission chain 29.

[0041] A scraper barrel is fixedly installed on the middle outer surface of the transmission shaft 8, a battery slot is provided on the outer surface of the transmission shaft 8, a discharge port is provided at the center of the bottom surface of the collecting hopper 6, and the fifth transmission sprocket 17 is meshed and connected with the first transmission sprocket 10 through one end of the third transmission chain 16, so that when the conveying device 2 rotates, it can drive the uniform feeding device 1 to rotate synchronously.

[0042] The third transmission sprocket 12 is rotationally connected with the fourth transmission sprocket 15 through the first transmission chain 9, and the second transmission sprocket 11 is meshedly connected with the outer surface of another group of fourth transmission sprockets 15 through the second transmission chain 13, so that when the transmission shaft 8 rotates, the two groups of rotating shafts 5 can be synchronously driven to rotate at the same time, and the two ends of the rotating shaft 5 and the transmission shaft 8 are respectively rotationally engaged with the side of the limit frame 14, so as to play a limiting support role for the two ends of the rotating shaft 5 and the transmission shaft 8.

[0043] One end of the first drive motor 18 is rotatably connected to the conveyor belt 21 inside the limit frame 19, thereby driving the conveyor belt 21 to rotate synchronously. The limit frame 19 is clamped with the top side of the conveyor belt 21 through the guide plate 20, and the batteries can be transported to the top of the conveyor belt 21. One end of the third drive motor 28 is fixedly connected to one end of the crushing roller 30 on the outer surface of the conveyor belt 21, thereby driving the crushing roller 30 to rotate and crush the batteries inside the top of the conveyor belt 21.

[0044] The outer surface of the plunger cylinder 32 is provided with a clamping plate, and the plunger cylinder 32 is slidably clamped with the side of the filter frame 35 through the clamping plate, so as to play a role of limiting support for the side sliding of the filter frame 35.

[0045] One end of the plunger cylinder 32 is fixedly connected to the side of one end of the filter frame 35, so that when the plunger cylinder 32 is extended and retracted, it can control the sliding of the filter frame 35 at the bottom of the conveyor belt 21. The second drive motor 24 is rotatably connected to the bottom of the collection box 26 through the threaded rod 37, so that when the threaded rod 37 rotates forward and reverse, it can control the collection box 26 to slide back and forth on the upper surface of the limiting guide rail 31.

[0046] A method for operating a lithium iron phosphate battery recycling device, comprising the following steps:

[0047] S1. First, load the lithium iron phosphate battery into the uniform feeding device 1, and then start the conveying device 2 to make the conveying belt 21 rotate inside the limiting frame 19. When the conveying device 2 is running, it will drive the transmission shaft 8 to rotate synchronously through the third transmission chain 16, so that the uniform feeding device 1 can run synchronously;

[0048] S2. When the uniform feeding device 1 is running, it will drive the two sets of internal rotating shafts 5 to rotate synchronously. When the rotating shaft 5 rotates inside the collecting hopper 6, the lithium iron phosphate batteries inside the collecting hopper 6 will be turned over, thereby preventing the lithium iron phosphate batteries from accumulating inside the uniform feeding device 1. At the same time, the transmission shaft 8 will drive the scraper barrel on the outer surface to rotate synchronously;

[0049] S3, when the scraper drum rotates, the battery slot on the outer surface will drive the battery to rotate synchronously, so that the lithium iron phosphate battery is transported to the inside of the conveyor belt 21 below, and the conveyor belt 21 will transport the battery, so that the lithium iron phosphate battery is transported to the top of the crushing device 3;

[0050] S4. When the lithium iron phosphate battery enters the crushing device 3, the crushing roller 30 rotates to crush the lithium iron phosphate battery and discharge it to the upper surface of the filter 33. The filter 33 filters the metal shell inside the battery, and the material inside the lithium iron phosphate battery falls into the collection box 26, thereby collecting the lithium iron phosphate battery material.

[0051] Working principle of Example 1: first load the lithium iron phosphate battery into the interior of the uniform feeding device 1, then start the conveying device 2 to run, thereby controlling the first drive motor 18 to drive the conveyor belt 21 to rotate inside the limit frame 19, and when the conveyor belt 21 is running, it will drive the transmission shaft 8 to rotate synchronously through the third transmission chain 16 and the first transmission sprocket 10, so that the uniform feeding device 1 runs synchronously. When the uniform feeding device 1 is running, the transmission shaft 8 will drive the first transmission chain 9 and the second transmission chain 13 to rotate synchronously through the first transmission sprocket 10 and the third transmission sprocket 12 at both ends, and when the first transmission chain 9 and the second transmission chain 13 rotate synchronously, it will drive the rotating shaft 5 to rotate synchronously, and the rotating shaft 5 will rotate synchronously. When the shaft 5 rotates inside the collecting hopper 6, the rotating shaft 5 will turn over the lithium iron phosphate battery inside the collecting hopper 6 through the turning teeth 4 on the outer surface, so as to avoid the lithium iron phosphate battery from piling up in the center of the bottom end of the collecting hopper 6 and affecting the discharge of materials. At the same time, the transmission shaft 8 will drive the scraper barrel on the middle outer surface to rotate synchronously at the bottom center of the collecting hopper 6. When the scraper barrel rotates, it will drive the battery to rotate synchronously through the battery slot on the outer surface, so as to transport the lithium iron phosphate battery to the upper surface of the conveyor belt 21 below. The rotating conveyor belt 21 will transport the battery, so as to transport the lithium iron phosphate battery to the top of the crushing device 3. When the lithium iron phosphate battery enters the crushing device 3, the third drive motor 28 drives the two The crushing rollers 30 rotate synchronously in opposite directions, thereby crushing the lithium iron phosphate battery and discharging the lithium iron phosphate battery debris to the upper surface of the filter screen 33 inside the filter frame 35, and the filter screen 33 will filter the metal shell inside the lithium iron phosphate battery debris, and the material inside the lithium iron phosphate battery will fall into the inside of the collection box 26, so as to collect the lithium iron phosphate battery material. After the crushing device 3 has been running for a long time, it is necessary to clean the metal shell inside the filter frame 35. First, start the plunger cylinder 32 to drive the filter frame 35 to slide horizontally, so that the filter screen 33 is away from the bottom of the conveyor belt 21, and then clean the metal shell inside the filter frame 35, and then control the plunger cylinder 3 2 drives the filter frame 35 to reset, and then starts the second drive motor 24 to drive the threaded rod 37 to rotate synchronously. When the threaded rod 37 rotates, it will drive the collection box 26 to slide on the upper surface of the limiting guide rail 31, so that the collection box 26 is away from the bottom of the conveyor belt 21, and then the battery materials inside the roller 36 can be cleaned, and then the second drive motor 24 is controlled to rotate in the opposite direction, so that the collection box 26 can slide and reset on the upper surface of the limiting guide rail 31. Therefore, by installing the uniform feeding device 1 at one end of the conveying device 2, it is convenient to uniformly and automatically feed the waste batteries, so that the batteries can be uniformly crushed inside the crushing device, and the battery crushing effect can be improved.

[0052] Example 2

[0053] On the basis of Example 1, Fig.10 As shown, a shielding plate 38 is rotatably mounted on the outer surface of the top end of the limiting frame 19 .

[0054] When implementing this embodiment, by rotatably setting a shielding plate 38 at the top of the limiting frame 19, the top of the conveyor belt 21 can be shielded, thereby preventing the batteries from splashing and polluting the environment when they are broken inside the conveyor belt 21.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A recycling device for lithium iron phosphate batteries, comprising a uniform feeding device (1), a conveying device (2) and a crushing device (3), wherein the uniform feeding device (1) is fixedly mounted on the front upper surface of the conveying device (2), and the crushing device (3) is fixedly connected to the rear bottom outer surface of the conveying device (2), characterized in that: A collecting hopper (6) is fixedly installed inside the uniform feeding device (1), and the outer surface of the bottom end of the collecting hopper (6) is fixedly connected to a first support frame (7). The inner center of the collecting hopper (6) is rotatably clamped on both side edges with a rotating shaft (5), and the outer surface of the rotating shaft (5) is uniformly welded with material turning teeth (4). The bottom center of the collecting hopper (6) is rotatably clamped on a transmission shaft (8), and the outer surfaces of both ends of the rotating shaft (5) are fixedly installed with fourth transmission sprockets (15). The outer surfaces of both sides of the collecting hopper (6) are fixedly connected to limit frames (14). The first transmission sprocket (10) is evenly and fixedly mounted on the outer surfaces of both ends of the transmission shaft (8); the second transmission sprocket (11) is fixedly mounted on the outer surfaces of both ends of the transmission shaft (8) and located at the edge of the first transmission sprocket (10); the third transmission sprocket (12) is fixedly mounted on the outer surfaces of both ends of the transmission shaft (8) and located at the edge of the second transmission sprocket (11); the outer surface of the third transmission sprocket (12) is meshingly connected to the first transmission chain (9); and the outer surface of the second transmission sprocket (11) is meshingly connected to the second transmission chain (13); A limit frame (19) is fixedly installed inside the conveying device (2), a guide plate (20) is fixedly connected to the outer surface of the top end of the limit frame (19), a conveyor belt (21) is rotatably installed inside the limit frame (19), a first drive motor (18) is fixedly installed on the outer surface of one side of the bottom end of the limit frame (19), and the outer surfaces of both sides of the bottom end of the limit frame (19) are rotatably connected to the fifth transmission sprocket (17), and the outer surface of the fifth transmission sprocket (17) is meshingly connected to the third transmission chain (16); A support base (25) is fixedly installed inside the crushing device (3), a second support frame (23) is welded to the top of the support base (25), a conveyor belt (21) is welded to the top of the second support frame (23), a crushing roller (30) is symmetrically rotatably installed on the top of the inner top of the conveyor belt (21), one end of the outer surface of the crushing roller (30) is fixedly connected to a sixth transmission sprocket (22), a third drive motor (28) is fixedly installed on the upper outer surface of the conveyor belt (21), and a limit frame plate (27) is symmetrically welded to the inner outer surface of the second support frame (23), plunger cylinders (32) are fixedly installed on both sides of the bottom end of the conveyor belt (21), and the bottom of the conveyor belt (21) is fixedly connected to the outer surface of the second support frame (23). The end surface is slidably connected with a filter frame (35), a filter screen (33) is welded inside the filter frame (35), a flip plate (34) is rotatably mounted on one end surface of the filter frame (35), a limiting guide rail (31) is fixedly mounted on the middle part of the rear end of the support base (25), a second drive motor (24) is fixedly mounted on the outer surface of the middle part of the front end of the limiting guide rail (31), one end of the second drive motor (24) is fixedly connected to a threaded rod (37), a collection box (26) is slidably mounted on the upper surface of the limiting guide rail (31), four corners of the bottom end of the collection box (26) are fixedly connected to rollers (36), and the outer surface of the sixth transmission sprocket (22) is meshingly connected to a fourth transmission chain (29); A scraper barrel is fixedly mounted on the outer surface of the middle portion of the transmission shaft (8), a battery slot is provided on the outer surface of the transmission shaft (8), a discharge port is provided at the center of the bottom surface of the collecting hopper (6), and the fifth transmission sprocket (17) is meshedly connected to the first transmission sprocket (10) via one end of the third transmission chain (16).

2. The recycling device for lithium iron phosphate batteries according to claim 1, characterized in that: The third transmission sprocket (12) is rotationally connected to the fourth transmission sprocket (15) via the first transmission chain (9); the second transmission sprocket (11) is meshingly connected to the outer surface of another group of fourth transmission sprockets (15) via the second transmission chain (13); and the two ends of the rotating shaft (5) and the transmission shaft (8) are rotationally engaged with the side surfaces of the limiting frame (14) respectively.

3. The recycling device for lithium iron phosphate batteries according to claim 2, characterized in that: One end of the first drive motor (18) is rotatably connected to a conveyor belt (21) inside a limiting frame (19); the limiting frame (19) is clamped to one side of a top end of the conveyor belt (21) via a material guide plate (20); and one end of the third drive motor (28) is fixedly connected to one end of a crushing roller (30) on an outer surface of the conveyor belt (21).

4. The recycling device for lithium iron phosphate batteries according to claim 3, characterized in that: The outer surface of the plunger-type cylinder (32) is provided with a clamping plate, and the plunger-type cylinder (32) is slidably clamped with the side surface of the filter frame (35) via the clamping plate.

5. The recycling device for lithium iron phosphate batteries according to claim 4, characterized in that: One end of the plunger cylinder (32) is fixedly connected to the side surface of one end of the filter frame (35), and the second drive motor (24) is rotatably threadedly connected to the bottom of the collection box (26) via a threaded rod (37).

6. The recycling device for lithium iron phosphate batteries according to claim 5, characterized in that: A shielding plate (38) is rotatably mounted on the outer surface of the top end of the limiting frame (19).

7. A method for operating a recycling device for lithium iron phosphate batteries, using a recycling device for lithium iron phosphate batteries as claimed in any one of claims 1 to 6, characterized in that: It includes the following steps: S1. First, lithium iron phosphate batteries are loaded into the interior of the uniform feeding device (1), and then the conveying device (2) is started to operate, so that the conveying belt (21) rotates inside the limiting frame (19). When the conveying device (2) is in operation, the transmission shaft (8) is driven to rotate synchronously through the third transmission chain (16), so that the uniform feeding device (1) operates synchronously; S2. When the uniform feeding device (1) is in operation, it drives the two sets of internal rotating shafts (5) to rotate synchronously. When the rotating shafts (5) rotate inside the collecting hopper (6), the lithium iron phosphate batteries inside the collecting hopper (6) are turned over, thereby preventing the lithium iron phosphate batteries from being accumulated inside the uniform feeding device (1). At the same time, the transmission shaft (8) drives the scraper barrel on the outer surface to rotate synchronously. S3, when the scraper drum rotates, the battery slot on the outer surface drives the battery to rotate synchronously, thereby conveying the lithium iron phosphate battery to the inside of the conveyor belt (21) below, and the conveyor belt (21) conveys the battery, thereby conveying the lithium iron phosphate battery to the top of the crushing device (3); S4. When the lithium iron phosphate battery enters the crushing device (3), the crushing roller (30) rotates to crush the lithium iron phosphate battery and discharge it onto the upper surface of the filter (33). The filter (33) filters the metal shell inside the battery, and the material inside the lithium iron phosphate battery falls into the collection box (26), thereby collecting the lithium iron phosphate battery material.

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