Equipment and method for recycling and regenerating waste lithium iron phosphate

Abstract

The present invention discloses a waste lithium iron phosphate recycling and regeneration processing equipment and a recycling and regeneration method, and relates to the technical field of waste lithium iron phosphate recycling. The waste lithium iron phosphate recycling and regeneration processing equipment includes a processor arranged above a base for crushing and decomposing waste lithium iron phosphate batteries. In the process of crushing and decomposing waste lithium iron phosphate batteries by the processor to assist in recycling and regeneration, the present invention uses an identification component to determine whether the waste lithium iron phosphate batteries are fully discharged and timely separate and collect the waste lithium iron phosphate batteries that are not fully discharged, so as to facilitate safer and more efficient recycling operations of waste lithium iron phosphate batteries. In the identification process, the position where the end of the waste lithium iron phosphate battery is to be in contact with the conductive rod is cleaned through the cooperation of the cleaning component, so as to avoid that some dust at the end of the waste lithium iron phosphate battery affects the effect of power connection detection and identification.

Description

Technical Field

[0001] The present invention relates to the technical field of waste lithium iron phosphate recovery, and in particular to waste lithium iron phosphate recovery and regeneration processing equipment and a recovery and regeneration method. Background Art

[0002] Waste lithium iron phosphate batteries contain valuable metal elements such as lithium, iron, and phosphorus. Through recycling and regeneration processing equipment, these elements can be effectively extracted and reused in the production of new batteries or other industrial purposes, thereby reducing the pressure on the exploitation of primary resources and achieving sustainable utilization of resources.

[0003] In the process of recycling and processing waste lithium iron phosphate batteries through recycling and regeneration equipment, the usage of different waste lithium iron phosphate batteries is different. Some waste lithium iron phosphate batteries are in an incompletely discharged state. During the disassembly, crushing and other recycling and processing processes, they may cause safety accidents such as short circuits, fires and even explosions. In addition, the incompletely discharged waste lithium iron phosphate batteries may interfere with some chemical or physical reactions in the recycling process due to the existence of internal electricity, resulting in reduced processing efficiency. For this reason, we propose a waste lithium iron phosphate recycling and regeneration processing equipment and a recycling and regeneration method. Summary of the invention

[0004] The purpose of the present invention is to provide a waste lithium iron phosphate recovery and regeneration treatment equipment and a recovery and regeneration method 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 waste lithium iron phosphate recycling and regeneration processing equipment, comprising a processing machine arranged above a base for crushing and decomposing waste lithium iron phosphate batteries, one side of the processing machine is provided with a U-shaped conveying plate used for conveying waste lithium iron phosphate batteries, the U-shaped conveying plate is inclined toward the feed port of the processing machine, the U-shaped conveying plate is fixed to the base by a mounting frame, and also includes a baffle plate arranged on the U-shaped conveying plate for blocking the conveyed waste lithium iron phosphate batteries, a first lifting component for lifting the baffle plate and a first guiding component for guiding during the lifting process are arranged between the baffle plate and the U-shaped conveying plate, an identification component for identifying the discharge state of the waste lithium iron phosphate battery after blocking is arranged on the U-shaped conveying plate, and a separation and collection component for separating and collecting abnormal waste lithium iron phosphate batteries after identification is arranged on the U-shaped conveying plate.

[0006] The identification component includes an L-shaped frame symmetrically arranged on both sides of the U-shaped conveying plate, a plurality of groups of T-shaped rods are slidably connected to the L-shaped frame, one end of the T-shaped rod is fixed to one side of the U-shaped conveying plate, and a transmission component for transmitting the two groups of L-shaped frames is arranged on the U-shaped conveying plate, a hard conductive wire is fixed on the L-shaped frame, a connecting frame is fixed above the U-shaped conveying plate, a display light is installed on the connecting frame, one end of the hard conductive wires on the two groups of L-shaped frames are electrically connected to the positive and negative poles of the display lights respectively, a conductive rod is fixed to the other end of the hard conductive wire, and a centering positioning component for centering the waste lithium iron phosphate battery is arranged on the L-shaped frame.

[0007] Preferably, the centering positioning assembly includes a support ring, and the initial state of the support ring is on the front side of the conductive rod, multiple groups of first sleeves are fixed on the L-shaped frame, and a first slide bar is slidably connected to the first sleeve, one end of the first slide bar is fixed to one side of the support ring, and a first spring is sleeved on the outer side of the first sleeve, and the two ends of the first spring are respectively connected to the support ring and the L-shaped frame, and a cleaning assembly for cleaning the contact detection position on the waste lithium iron phosphate battery is provided on the support ring.

[0008] Preferably, the cleaning component includes a circular groove opened on the side of the support ring away from the L-shaped frame, and a plurality of groups of triangular plates are evenly distributed inside the circular groove. An elastic component for pushing the triangular plates against each other is provided inside the circular groove, and the plurality of groups of triangular plates are arranged against each other under the elastic force of the elastic component. A cleaning brush is fixed on each group of the triangular plates, and the front end of the cleaning brush is on the outside of the support ring. The back side of the triangular plate is provided with an inclined surface for transmission against the end of the conductive rod.

[0009] Preferably, the elastic component includes a second sleeve fixed inside the circular groove, a second slide rod is slidably connected to the second sleeve, one end of the second slide rod is fixed to the triangular plate, a second spring is sleeved on the outer side of the second sleeve, and both ends of the second spring are respectively connected to the circular groove and the triangular plate.

[0010] Preferably, the transmission assembly includes a transmission plate fixed to the upper end of the L-shaped frame, the transmission plate is provided with an inclined groove, a transmission pin slidably connected to the inclined groove, a U-shaped plate is provided at the upper end of the U-shaped conveying plate, two groups of transmission pins are respectively fixed to the two ends of the U-shaped plate, and a linkage assembly for linking the U-shaped plate is provided on the base.

[0011] Preferably, the linkage assembly includes a support plate fixed to the upper end of the base, a linkage plate is arranged above the support plate, the U-shaped plate is fixed to the linkage plate, and a second lifting assembly for assisting the lifting of the linkage plate and a second guide assembly for guiding during the lifting process are arranged between the linkage plate and the support plate.

[0012] Preferably, the second lifting assembly includes a first threaded rod rotatably connected to a linkage plate, a first threaded tube is threadedly engaged on the first threaded rod, one end of the first threaded tube is fixed to the upper end of the support plate, and a first motor for driving the first threaded rod is installed on the linkage plate.

[0013] Preferably, the second guide assembly includes a third sliding rod fixed to the lower end of the linkage plate, a third sleeve is slidably connected to the third sliding rod, and one end of the third sleeve is fixed to the upper end of the support plate.

[0014] Preferably, the separation and collection assembly comprises a material drop chute provided below the U-shaped conveying plate, a flip plate for blocking the material drop chute is provided inside the material drop chute, a rotating assembly for rotating the flip plate is provided on the U-shaped conveying plate, and a collection box for collecting the waste lithium iron phosphate batteries falling from the material drop chute is provided above the base;

[0015] The rotating assembly includes an L-shaped seat fixed on one side of the U-shaped conveying plate, the L-shaped seat and the blanking chute are rotatably connected with a connecting shaft, the flip plate is fixed on the connecting shaft, and a second motor for driving the connecting shaft is installed on the L-shaped seat.

[0016] Preferably, the first lifting assembly and the first guide assembly are symmetrically arranged at both ends of the baffle plate, the first lifting assembly includes a first fixed plate fixed on one side of the baffle plate, a second threaded rod is rotatably connected to the first fixed plate, a second threaded tube is threadedly connected to the second threaded rod, a first mounting plate is fixed to one end of the second threaded tube, the first mounting plate is fixed to the outer side of the U-shaped conveying plate, and a third motor for driving the second threaded rod is installed on the first fixed plate.

[0017] Preferably, the second guide assembly includes a second fixed plate fixed on one side of the baffle plate, a fourth slide bar is fixed on the second fixed plate, a fourth sleeve is slidably connected to the fourth slide bar, a second mounting plate is fixed to one end of the fourth sleeve, and the second mounting plate is fixed to one side of the U-shaped conveying plate.

[0018] A method for recycling and regenerating waste lithium iron phosphate comprises the following steps:

[0019] S1: In the process of crushing and decomposing the waste lithium iron phosphate batteries by the processing machine to assist in recycling and regeneration, the waste lithium iron phosphate batteries to be processed are laid on the U-shaped conveyor plate in sequence, and the waste lithium iron phosphate batteries to be recycled are transported by the inclined U-shaped conveyor plate;

[0020] S2: During the conveying process, the second lifting assembly, the second guide assembly, the linkage assembly and the transmission assembly cooperate to make the two groups of L-shaped frames move towards each other on both sides of the U-shaped conveying plate after being subjected to force;

[0021] S3: When the two groups of L-shaped frames move toward each other, the two groups of support rings are driven to respectively abut against the two sides of the waste lithium iron phosphate battery after the barrier is positioned. During the abutment process, the elastic force of the first spring on the support ring ensures that the waste lithium iron phosphate battery after the barrier is positioned maintains a more stable state, which is convenient for subsequent stable state recognition operations;

[0022] S4: When the L-shaped frame moves toward the support ring, the conductive rods at the front ends of the two sets of hard conductive wires are driven to pass through the support ring and contact the two ends of the waste lithium iron phosphate battery. When the waste lithium iron phosphate battery is not completely discharged and has power, the indicator light is on. When the waste lithium iron phosphate battery is completely discharged and has no power, the indicator light is off.

[0023] S5: After the discharge state of the waste lithium iron phosphate battery is identified, if the waste lithium iron phosphate battery identified is completely discharged, the baffle plate is driven to move upward through the first lifting assembly and the first guide assembly, and the identified waste lithium iron phosphate battery is no longer blocked. At this time, the identified waste lithium iron phosphate battery that is completely discharged is transported toward the inside of the processing machine through the U-shaped conveying plate;

[0024] S6: If the waste lithium iron phosphate battery detected and identified is not fully discharged, the turning plate is driven to rotate on the chute by the rotating assembly so that the turning plate no longer blocks the chute. At this time, the waste lithium iron phosphate battery detected and identified as abnormal above the chute falls through the chute into the collection box for collection;

[0025] S7: When the support ring and the end of the used lithium iron phosphate battery are against each other, the cleaning brush is driven by transmission to clean the position where the end of the used lithium iron phosphate battery is to be in contact with the conductive rod, so as to prevent some dust on the end of the used lithium iron phosphate battery from affecting the effect of power connection detection and identification. After the conductive rod and the end of the used lithium iron phosphate battery are against each other, the elastic component is used to push the ends of each group of triangular plates against the outer side of the conductive rod, so as to prevent the conductive rod from deviating and shaking, and ensure more accurate detection and identification operation.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the process of crushing and decomposing the waste lithium iron phosphate batteries by the processing machine for auxiliary recycling and regeneration, the present invention determines whether the waste lithium iron phosphate batteries are completely discharged through the identification component and promptly separates and collects the waste lithium iron phosphate batteries that are not completely discharged, so as to facilitate safer and more efficient recycling of the waste lithium iron phosphate batteries. In addition, in the identification process, the position where the end of the waste lithium iron phosphate battery is to be in contact with the conductive rod is cleaned through the cooperation of the cleaning component, so as to avoid the influence of some dust on the end of the waste lithium iron phosphate battery on the effect of power connection detection and identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the U-shaped conveying plate of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the identification component of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the transmission assembly and linkage assembly of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the second lifting assembly and the second guide assembly of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the first lifting assembly and the first guiding assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the centering positioning component of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the separation and collection component and the rotating component of the present invention;

[0036] Fig. 9 This is a schematic diagram of the present invention before identifying the status of a waste lithium iron phosphate battery;

[0037] Fig.10 This is a schematic diagram of the present invention for identifying the status of a waste lithium iron phosphate battery;

[0038] Fig.11 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0039] Fig.12 It is a schematic diagram of the structure of the elastic component of the present invention;

[0040] Fig.13 The present invention is a flow chart of the method for recycling and regenerating waste lithium iron phosphate.

[0041] In the figure: 101, base; 102, processing machine; 103, U-shaped conveying plate; 104, mounting frame; 105, waste lithium iron phosphate battery; 2, baffle plate; 301, first fixed plate; 302, second threaded rod; 303, second threaded tube; 304, first mounting plate; 305, third motor; 401, second fixed plate; 402, fourth slide bar; 403, fourth sleeve; 404, second mounting plate; 501, L-shaped frame; 502, hard conductive wire; 503, connecting frame; 504, display light; 505, conductive rod; 506, T-shaped rod; 601, support ring; 602, first sleeve; 603, first slide bar; 604 , first spring; 701, circular groove; 702, triangular plate; 703, cleaning brush; 704, inclined plane; 801, second sleeve; 802, second slide bar; 803, second spring; 901, transmission plate; 902, inclined groove; 903, transmission pin; 904, U-shaped plate; 1001, support plate; 1002, linkage plate; 1101, first threaded rod; 1102, first threaded tube; 1103, first motor; 1201, third slide bar; 1202, third sleeve; 1301, blanking chute; 1302, flip plate; 1303, collection box; 1401, L-shaped seat; 1402, connecting shaft; 1403, second motor. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1-Figure 13 , a waste lithium iron phosphate recycling and regeneration processing equipment shown in the figure includes a processing machine 102 arranged above a base 101 for crushing and decomposing waste lithium iron phosphate batteries 105, a U-shaped conveying plate 103 for conveying waste lithium iron phosphate batteries 105 is arranged on one side of the processing machine 102, the U-shaped conveying plate 103 is inclined toward the feed port of the processing machine 102, and the U-shaped conveying plate 103 is fixed to the base 101 by a mounting frame 104;

[0045] It should be noted that: the processor 102 is provided with a feed port for auxiliary feeding, and the processor 102 is a common processing equipment in the field of waste lithium iron phosphate recycling and regeneration, and its working principle and method are relatively mature. In this application, the processor 102 is regarded as the prior art and will not be repeated here;

[0046] It also includes a baffle plate 2 arranged on the U-shaped conveying plate 103 for blocking the conveyed waste lithium iron phosphate batteries 105, a first lifting component for lifting the baffle plate 2 and a first guiding component for guiding during the lifting process are arranged between the baffle plate 2 and the U-shaped conveying plate 103, an identification component for identifying the discharge state of the waste lithium iron phosphate batteries 105 after blocking is arranged on the U-shaped conveying plate 103, and a separation and collection component for separating and collecting abnormal waste lithium iron phosphate batteries 105 after identification is arranged on the U-shaped conveying plate 103;

[0047] The identification component includes an L-shaped frame 501 symmetrically arranged on both sides of the U-shaped conveying plate 103, a plurality of groups of T-shaped rods 506 are slidably connected to the L-shaped frame 501, one end of the T-shaped rod 506 is fixed to one side of the U-shaped conveying plate 103, a transmission component for transmitting the two groups of L-shaped frames 501 is arranged on the U-shaped conveying plate 103, a hard conductive wire 502 is fixed on the L-shaped frame 501, a connecting frame 503 is fixed above the U-shaped conveying plate 103, a display light 504 is installed on the connecting frame 503, one end of the hard conductive wire 502 on the two groups of L-shaped frames 501 is electrically connected to the positive and negative poles of the display light 504 respectively, a conductive rod 505 is fixed to the other end of the hard conductive wire 502, and a centering positioning component for centering the waste lithium iron phosphate battery 105 is arranged on the L-shaped frame 501;

[0048] It should be noted here that: in the process of crushing and decomposing the waste lithium iron phosphate battery 105 for auxiliary recycling and regeneration by the processing machine 102, the identification component is used to determine whether the waste lithium iron phosphate battery 105 is completely discharged and the waste lithium iron phosphate battery 105 that is not completely discharged is separated and collected in time, so as to facilitate a safer and more efficient recycling operation of the waste lithium iron phosphate battery 105. In addition, in the identification process, the position where the end of the waste lithium iron phosphate battery 105 is to be in contact with the conductive rod 505 is cleaned through the cooperation of the cleaning component, so as to avoid the dust at the end of the waste lithium iron phosphate battery 105 affecting the effect of power connection detection and identification.

[0049] Preferably, the centering positioning component includes a support ring 601, and the initial state of the support ring 601 is at the front side of the conductive rod 505, a plurality of first sleeves 602 are fixed on the L-shaped frame 501, a first slide bar 603 is slidably connected to the first sleeve 602, one end of the first slide bar 603 is fixed to one side of the support ring 601, a first spring 604 is sleeved on the outer side of the first sleeve 602, and the two ends of the first spring 604 are respectively connected to the support ring 601 and the L-shaped frame 501, and a cleaning component for cleaning the contact detection position on the waste lithium iron phosphate battery 105 is provided on the support ring 601;

[0050] It should be noted here that: in the process of the two groups of L-shaped frames 501 moving towards each other, the two groups of support rings 601 are driven to respectively abut against the two sides of the waste lithium iron phosphate batteries 105 after the barrier positioning. In the process of abutting, with the continued movement of the L-shaped frame 501 and the abutment and limiting effect of the end of the waste lithium iron phosphate battery 105 on the support ring 601, the L-shaped frame 501 moves toward the support ring 601. In the process of movement, each group of first sliding rods 603 is pushed to slide on each group of first sleeves 602 respectively, and the first spring 604 is deformed by force to generate elastic force. Through the elastic force of the first spring 604 on the support ring 601, it is ensured that the waste lithium iron phosphate batteries 105 after the barrier positioning remain in a more stable state, which is convenient for subsequent stable state recognition operations.

[0051] Preferably, the cleaning component includes a circular groove 701 opened on the support ring 601 away from the L-shaped frame 501, and multiple groups of triangular plates 702 are evenly distributed inside the circular groove 701. An elastic component for pushing the triangular plates 702 against each other is arranged inside the circular groove 701, and the multiple groups of triangular plates 702 are arranged against each other under the elastic force of the elastic component. A cleaning brush 703 is fixed on each group of triangular plates 702, and the front end of the cleaning brush 703 is located on the outside of the support ring 601. The back of the triangular plate 702 is provided with an inclined surface 704 for driving against the end of the conductive rod 505;

[0052] It should be noted that: in the process of the support ring 601 abutting against the end of the waste lithium iron phosphate battery 105, the cleaning brush 703 on each group of triangular plates 702 abuts against the position where the end of the waste lithium iron phosphate battery 105 is about to contact the conductive rod 505, and as the conductive rod 505 passes through the support ring 601 and abuts against the end of the waste lithium iron phosphate battery 105, the ends of the conductive rods 505 abut against the inclined surfaces 704 on each group of triangular plates 702, driving each group of triangular plates 702 to move. The forces are applied to move away from each other in a dispersed manner, so that the conductive rod 505 can pass through each group of triangular plates 702 and abut against the end of the used lithium iron phosphate battery 105. In the process of each group of triangular plates 702 being applied to move away from each other, the cleaning brush 703 abuts against the position where the end of the used lithium iron phosphate battery 105 is about to contact with the conductive rod 505. The movement of the triangular plate 702 drives the cleaning brush 703 to clean the position where the end of the used lithium iron phosphate battery 105 is about to contact with the conductive rod 505.

[0053] Preferably, the elastic component includes a second sleeve 801 fixed inside the circular groove 701, a second slide bar 802 is slidably connected to the second sleeve 801, one end of the second slide bar 802 is fixed to the triangular plate 702, a second spring 803 is sleeved on the outer side of the second sleeve 801, and both ends of the second spring 803 are respectively connected to the circular groove 701 and the triangular plate 702;

[0054] It should be noted here that: the second sleeve 801 and the second slide bar 802 are used to assist the stable telescopic movement of the triangular plate 702, and the second spring 803 is used to push the triangular plate 702 with elastic force.

[0055] Preferably, the transmission assembly includes a transmission plate 901 fixed to the upper end of the L-shaped frame 501, an inclined groove 902 is provided on the transmission plate 901, a transmission pin 903 slidably connected to the inclined groove 902, a U-shaped plate 904 is provided at the upper end of the U-shaped conveying plate 103, two groups of transmission pins 903 are respectively fixed to the two ends of the U-shaped plate 904, and a linkage assembly for linking the U-shaped plate 904 is provided on the base 101; the linkage assembly includes a support plate 1001 fixed to the upper end of the base 101, a linkage plate 1002 is provided above the support plate 1001, the U-shaped plate 904 is fixed to the linkage plate 1002, and a second lifting assembly for assisting the lifting of the linkage plate 1002 and a second guide assembly for guiding during the lifting process are provided between the linkage plate 1002 and the support plate 1001;

[0056] It should be noted here that: through the mutual cooperation of the second lifting assembly and the second guide assembly, the linkage plate 1002 is driven to move downward toward the support plate 1001. During the downward movement of the linkage plate 1002, the U-shaped plate 904 is driven to move synchronously. During the movement of the U-shaped plate 904, the two groups of transmission pins 903 are driven to move. During the movement of the transmission pins 903, the two groups of transmission plates 901 and the L-shaped frame 501 are driven to move through the interaction between the two groups of transmission pins 903 and the two groups of inclined grooves 902 respectively.

[0057] Preferably, the second lifting assembly includes a first threaded rod 1101 rotatably connected to the linkage plate 1002, a first threaded tube 1102 is threadedly engaged with the first threaded rod 1101, one end of the first threaded tube 1102 is fixed to the upper end of the support plate 1001, and a first motor 1103 for driving the first threaded rod 1101 is installed on the linkage plate 1002; the second guide assembly includes a third sliding rod 1201 fixed to the lower end of the linkage plate 1002, a third sleeve 1202 is slidably connected to the third sliding rod 1201, and one end of the third sleeve 1202 is fixed to the upper end of the support plate 1001;

[0058] It should be noted here that: the first threaded rod 1101 is driven to rotate by the first motor 1103. During the rotation of the first threaded rod 1101, the mutual meshing transmission between the first threaded rod 1101 and the first threaded tube 1102 and the sliding guiding effect of the third sliding rod 1201 and the third sleeve 1202 are used to make the linkage plate 1002 move up and down after being subjected to force.

[0059] Preferably, the separation and collection assembly includes a chute 1301 provided below the U-shaped conveying plate 103, a flip plate 1302 for blocking the chute 1301 is provided inside the chute 1301, a rotating assembly for rotating the flip plate 1302 is provided on the U-shaped conveying plate 103, and a collection box 1303 for collecting the waste lithium iron phosphate batteries 105 falling from the chute 1301 is provided above the base 101;

[0060] It should be noted here that: if the waste lithium iron phosphate battery 105 detected and identified is incompletely discharged, the flip plate 1302 is driven to rotate on the drop chute 1301 by rotating the assembly, so that the flip plate 1302 no longer blocks the drop chute 1301. At this time, the abnormal waste lithium iron phosphate battery 105 detected and identified above the drop chute 1301 falls through the drop chute 1301 into the collection box 1303 for collection.

[0061] The rotating assembly includes an L-shaped seat 1401 fixed to one side of the U-shaped conveying plate 103, a connecting shaft 1402 is rotatably connected to the L-shaped seat 1401 and the blanking chute 1301, the flip plate 1302 is fixed to the connecting shaft 1402, and a second motor 1403 for driving the connecting shaft 1402 is installed on the L-shaped seat 1401;

[0062] It should be noted here that: the second motor 1403 drives the connecting shaft 1402 to rotate, and the rotation of the connecting shaft 1402 drives the flip plate 1302 to rotate.

[0063] Preferably, the first lifting assembly and the first guiding assembly are symmetrically arranged at both ends of the baffle plate 2, the first lifting assembly includes a first fixed plate 301 fixed on one side of the baffle plate 2, the first fixed plate 301 is rotatably connected to the second threaded rod 302, the second threaded rod 302 is threadedly connected to the second threaded tube 303, one end of the second threaded tube 303 is fixed to a first mounting plate 304, the first mounting plate 304 is fixed to the outer side of the U-shaped conveying plate 103, and the first fixed plate 301 is installed with a third motor 305 for driving the second threaded rod 302; the second guiding assembly includes a second fixed plate 401 fixed on one side of the baffle plate 2, the second fixed plate 401 is fixed to a fourth sliding rod 402, the fourth sliding rod 402 is slidably connected to a fourth sleeve 403, one end of the fourth sleeve 403 is fixed to a second mounting plate 404, and the second mounting plate 404 is fixed to one side of the U-shaped conveying plate 103;

[0064] It should be noted here that: the second threaded rod 302 is driven to rotate by the third motor 305. During the rotation of the second threaded rod 302, the mutual meshing transmission between the second threaded rod 302 and the second threaded tube 303 and the sliding guiding action of the fourth sleeve 403 and the fourth slide rod 402 are used to make the baffle plate 2 move up and down after being subjected to force.

[0065] A method for recycling and regenerating waste lithium iron phosphate comprises the following steps:

[0066] S1: In the process of crushing and decomposing the waste lithium iron phosphate batteries 105 by the processing machine 102 to assist in recycling and regeneration, the waste lithium iron phosphate batteries 105 to be processed are laid on the U-shaped conveying plate 103 in sequence, and the waste lithium iron phosphate batteries 105 to be recycled are conveyed by the inclined U-shaped conveying plate 103;

[0067] S2: During the conveying process, the waste lithium iron phosphate battery 105 at the front of the U-shaped conveying plate 103 is blocked and limited by the baffle plate 2. During the blocking process, the blocked waste lithium iron phosphate battery 105 is placed above the flip plate 1302. After the blocking, the linkage plate 1002 is driven to move downward toward the support plate 1001 through the cooperation of the second lifting assembly and the second guide assembly. During the downward movement of the linkage plate 1002, the U-shaped plate 904 is driven to move synchronously. During the movement of the U-shaped plate 904, the two groups of transmission pins 903 are driven to move. During the movement of the transmission pins 903, the two groups of transmission plates 901 and the L-shaped frame 501 are driven to move through the interaction between the two groups of transmission pins 903 and the two groups of inclined grooves 902. During the movement of the L-shaped frame 501, the two groups of L-shaped frames 501 are forced to move closer to each other on both sides of the U-shaped conveying plate 103 through the sliding guide effect of the multiple groups of T-shaped rods 506.

[0068] S3: When the two groups of L-shaped frames 501 move toward each other, the two groups of support rings 601 are driven to respectively abut against the two sides of the waste lithium iron phosphate batteries 105 after the barrier positioning. During the abutment process, with the continued movement of the L-shaped frames 501 and the abutment and limiting effect of the ends of the waste lithium iron phosphate batteries 105 on the support rings 601, the L-shaped frames 501 move toward the support rings 601. During the movement, the first slide bars 603 of each group are pushed to slide on the first sleeves 602 of each group, respectively, and the first springs 604 are deformed by force to generate elastic force. Through the elastic force of the first springs 604 on the support rings 601, it is ensured that the waste lithium iron phosphate batteries 105 after the barrier positioning remain in a more stable state, which is convenient for subsequent stable state recognition operations;

[0069] S4: In the process of the L-shaped frame 501 moving toward the support ring 601, the conductive rods 505 at the front ends of the two sets of hard conductive wires 502 are driven to pass through the support ring 601 and abut against the two ends of the waste lithium iron phosphate battery 105. The circuit between the waste lithium iron phosphate battery 105 and the display light 504 is connected through the conductive effect of the two sets of hard conductive wires 502. When the waste lithium iron phosphate battery 105 is not completely discharged and has electricity, the display light 504 is in a light-on state. When the waste lithium iron phosphate battery 105 is completely discharged and has no electricity, the display light 504 is in a light-off state. Therefore, by whether the display light 504 is on, it is judged whether the waste lithium iron phosphate battery 105 is completely discharged and the waste lithium iron phosphate battery 105 that is not completely discharged is separated and collected in time, so as to facilitate a safer and more efficient recycling operation of the waste lithium iron phosphate battery 105.

[0070] S5: After the discharge state of the waste lithium iron phosphate battery 105 is identified, the two groups of L-shaped frames 501 are driven to reset through transmission. After the reset is completed, if the waste lithium iron phosphate battery 105 detected and identified is completely discharged, the baffle plate 2 is driven to move upward through the first lifting assembly and the first guide assembly, and the waste lithium iron phosphate battery 105 identified is no longer blocked. At this time, the waste lithium iron phosphate battery 105 identified and completely discharged is transported toward the inside of the processing machine 102 through the U-shaped conveying plate 103;

[0071] S6: If the waste lithium iron phosphate battery 105 detected and identified is not fully discharged, the turning plate 1302 is driven to rotate on the chute 1301 by the rotating assembly, so that the turning plate 1302 no longer blocks the chute 1301. At this time, the waste lithium iron phosphate battery 105 detected and identified as abnormal above the chute 1301 falls into the collection box 1303 through the chute 1301 for collection;

[0072] S7: In the process of the support ring 601 abutting against the end of the waste lithium iron phosphate battery 105, the cleaning brush 703 on each group of triangular plates 702 abuts against the position where the end of the waste lithium iron phosphate battery 105 is about to contact the conductive rod 505, and as the conductive rod 505 passes through the support ring 601 and abuts against the end of the waste lithium iron phosphate battery 105, the end of the conductive rod 505 and the inclined surface 704 on each group of triangular plates 702 abut against each other, so that the triangular plates 702 are forced to move away from each other, so that the conductive rod 505 passes through each group of triangular plates 702 and abuts against the end of the waste lithium iron phosphate battery 105. During the movement away from each other, because the cleaning brush 703 is against the position where the end of the used lithium iron phosphate battery 105 is about to contact the conductive rod 505, the movement of the triangular plate 702 drives the cleaning brush 703 to clean the position where the end of the used lithium iron phosphate battery 105 is about to contact the conductive rod 505, thereby preventing some dust at the end of the used lithium iron phosphate battery 105 from affecting the effect of power connection detection and identification, and after the conductive rod 505 is against the end of the used lithium iron phosphate battery 105, the elastic component is used to push the end of each group of triangular plates 702 against the outer side of the conductive rod 505, thereby preventing the conductive rod 505 from deviating and shaking, thereby ensuring more accurate detection and identification operations.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] 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 waste lithium iron phosphate recycling and regeneration processing equipment, comprising: A processing machine (102) for crushing and decomposing waste lithium iron phosphate batteries (105) is arranged above a base (101); a U-shaped conveying plate (103) for conveying the waste lithium iron phosphate batteries (105) is arranged on one side of the processing machine (102); the U-shaped conveying plate (103) is arranged to be inclined toward a feed port of the processing machine (102); and the U-shaped conveying plate (103) is fixedly mounted to the base (101) via a mounting frame (104); It is characterized by further comprising: A baffle plate (2) is arranged on a U-shaped conveying plate (103) for blocking the waste lithium iron phosphate batteries (105) being transported; a first lifting component for lifting the baffle plate (2) and a first guiding component for guiding during the lifting process are arranged between the baffle plate (2) and the U-shaped conveying plate (103); an identification component is arranged on the U-shaped conveying plate (103) for identifying the discharge state of the waste lithium iron phosphate batteries (105) after blocking; and a separation and collection component is arranged on the U-shaped conveying plate (103) for separating and collecting abnormal waste lithium iron phosphate batteries (105) after identification; The identification component comprises an L-shaped frame (501) symmetrically arranged on both sides of a U-shaped conveying plate (103); a plurality of groups of T-shaped rods (506) are slidably connected to the L-shaped frame (501); one end of the T-shaped rod (506) is fixed to one side of the U-shaped conveying plate (103); a transmission component for transmitting the two groups of L-shaped frames (501) is arranged on the U-shaped conveying plate (103); a hard conductive wire (502) is fixed on the L-shaped frame (501); A connecting frame (503) is fixed above the feeding plate (103), a display light (504) is installed on the connecting frame (503), one end of the hard conductive wires (502) on the two groups of L-shaped frames (501) are electrically connected to the positive and negative electrodes of the display light (504) respectively, a conductive rod (505) is fixed to the other end of the hard conductive wires (502), and a centering positioning component for centering the waste lithium iron phosphate battery (105) is provided on the L-shaped frame (501); The centering positioning component comprises a support ring (601), and the support ring (601) is initially located in front of the conductive rod (505); a plurality of first sleeves (602) are fixed on the L-shaped frame (501); a first slide bar (603) is slidably connected to the first sleeve (602); one end of the first slide bar (603) is fixed to one side of the support ring (601); a first spring (604) is sleeved on the outer side of the first sleeve (602); two ends of the first spring (604) are respectively connected to the support ring (601) and the L-shaped frame (501); and a cleaning component for cleaning a contact detection position on a waste lithium iron phosphate battery (105) is provided on the support ring (601).

2. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 1 is characterized in that: The cleaning component comprises a circular groove (701) formed on a side of the support ring (601) away from the L-shaped frame (501), a plurality of groups of triangular plates (702) are evenly distributed inside the circular groove (701), an elastic component for pushing the triangular plates (702) against each other is provided inside the circular groove (701), and the plurality of groups of triangular plates (702) are arranged against each other under the elastic force of the elastic component, a cleaning brush (703) is fixed on each group of the triangular plates (702), and the front end of the cleaning brush (703) is located outside the support ring (601), and an inclined surface (704) for driving against the end of the conductive rod (505) is provided on the back side of the triangular plate (702).

3. A waste lithium iron phosphate recovery and regeneration processing equipment according to claim 2, characterized in that: The elastic component comprises a second sleeve (801) fixed inside the circular groove (701), a second slide bar (802) being slidably connected to the second sleeve (801), one end of the second slide bar (802) being fixed to the triangular plate (702), a second spring (803) being sleeved on the outer side of the second sleeve (801), and two ends of the second spring (803) being respectively connected to the circular groove (701) and the triangular plate (702).

4. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 1 is characterized in that: The transmission assembly comprises a transmission plate (901) fixed to the upper end of the L-shaped frame (501), the transmission plate (901) being provided with an inclined groove (902), a transmission pin (903) slidably connected to the inclined groove (902), a U-shaped plate (904) being provided at the upper end of the U-shaped conveying plate (103), two groups of the transmission pins (903) being respectively fixed to the two ends of the U-shaped plate (904), and a linkage assembly for linking the U-shaped plate (904) being provided on the base (101).

5. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 4 is characterized in that: The linkage assembly comprises a support plate (1001) fixed to the upper end of the base (101); a linkage plate (1002) is arranged above the support plate (1001); the U-shaped plate (904) is fixed to the linkage plate (1002); and a second lifting assembly for assisting the lifting of the linkage plate (1002) and a second guiding assembly for guiding during the lifting process are arranged between the linkage plate (1002) and the support plate (1001).

6. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 5 is characterized in that: The second lifting assembly comprises a first threaded rod (1101) rotatably connected to a linkage plate (1002); a first threaded tube (1102) is threadedly engaged with the first threaded rod (1101); one end of the first threaded tube (1102) is fixed to an upper end of the support plate (1001); and a first motor (1103) for driving the first threaded rod (1101) is mounted on the linkage plate (1002).

7. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 6 is characterized in that: The second guide assembly comprises a third sliding rod (1201) fixed to the lower end of the linkage plate (1002), a third sleeve (1202) being slidably connected to the third sliding rod (1201), and one end of the third sleeve (1202) being fixed to the upper end of the support plate (1001).

8. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 1 is characterized in that: The separation and collection assembly comprises a material drop chute (1301) provided below the U-shaped conveying plate (103); a flip plate (1302) for blocking the material drop chute (1301) is provided inside the material drop chute (1301); a rotating assembly for rotating the flip plate (1302) is provided on the U-shaped conveying plate (103); and a collection box (1303) for collecting waste lithium iron phosphate batteries (105) dropped from the material drop chute (1301) is provided above the base (101); The rotating assembly comprises an L-shaped seat (1401) fixed to one side of the U-shaped conveying plate (103); a connecting shaft (1402) is rotatably connected to the L-shaped seat (1401) and the blanking chute (1301); the flip plate (1302) is fixed to the connecting shaft (1402); and a second motor (1403) for driving the connecting shaft (1402) is installed on the L-shaped seat (1401).

9. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 1, characterized in that: The first lifting assembly and the first guiding assembly are symmetrically arranged at two ends of the baffle plate (2), the first lifting assembly comprises a first fixing plate (301) fixed to one side of the baffle plate (2), a second threaded rod (302) is rotatably connected to the first fixing plate (301), a second threaded tube (303) is threadedly engaged with the second threaded rod (302), a first mounting plate (304) is fixed to one end of the second threaded tube (303), the first mounting plate (304) is fixed to the outside of the U-shaped conveying plate (103), and a third motor (305) for driving the second threaded rod (302) is mounted on the first fixing plate (301).

10. The waste lithium iron phosphate recycling and regeneration processing equipment according to claim 5, characterized in that: The second guide assembly comprises a second fixed plate (401) fixed to one side of the baffle plate (2); a fourth sliding rod (402) is fixed to the second fixed plate (401); a fourth sleeve (403) is slidably connected to the fourth sliding rod (402); a second mounting plate (404) is fixed to one end of the fourth sleeve (403); and the second mounting plate (404) is fixed to one side of the U-shaped conveying plate (103).

11. A method for recycling and regenerating waste lithium iron phosphate, which uses a waste lithium iron phosphate recycling and regeneration processing equipment according to any one of claims 1 to 10, characterized in that: The following steps are involved: S1: in the process of crushing and decomposing the waste lithium iron phosphate batteries (105) for auxiliary recycling and regeneration by the processing machine (102), the waste lithium iron phosphate batteries (105) to be processed are sequentially laid on the U-shaped conveying plate (103), and the waste lithium iron phosphate batteries (105) to be recycled and processed are conveyed by the inclined U-shaped conveying plate (103); S2: During the conveying process, the second lifting assembly, the second guide assembly, the linkage assembly and the transmission assembly cooperate to make the two groups of L-shaped frames (501) move towards each other on both sides of the U-shaped conveying plate (103) after being subjected to force; S3: When the two groups of L-shaped frames (501) move toward each other, the two groups of support rings (601) are driven to respectively abut against the two sides of the waste lithium iron phosphate battery (105) after the barrier positioning. During the abutment process, the elastic force of the first spring (604) on the support ring (601) ensures that the waste lithium iron phosphate battery (105) after the barrier positioning maintains a more stable state, which facilitates the subsequent stable state recognition operation; S4: When the L-shaped frame (501) moves toward the support ring (601), the conductive rods (505) at the front ends of the two sets of hard conductive wires (502) are driven to pass through the support ring (601) and contact the two ends of the waste lithium iron phosphate battery (105). When the waste lithium iron phosphate battery (105) is not completely discharged and has electricity, the display light (504) is in a light-on state. When the waste lithium iron phosphate battery (105) is completely discharged and has no electricity, the display light (504) is in a light-off state. S5: After the discharge state of the waste lithium iron phosphate battery (105) is identified, if the waste lithium iron phosphate battery (105) identified is completely discharged, the baffle plate (2) is driven to move upward through the first lifting component and the first guiding component to no longer block the identified waste lithium iron phosphate battery (105), and the identified completely discharged waste lithium iron phosphate battery (105) is then transported toward the interior of the processing machine (102) through the U-shaped conveying plate (103); S6: If the waste lithium iron phosphate battery (105) detected and identified is not fully discharged, the turning plate (1302) is driven to rotate on the material dropping chute (1301) by the rotating assembly, so that the turning plate (1302) no longer blocks the material dropping chute (1301), and the waste lithium iron phosphate battery (105) detected and identified as abnormal above the material dropping chute (1301) falls through the material dropping chute (1301) into the collection box (1303) for collection; S7: During the process of the support ring (601) and the end of the waste lithium iron phosphate battery (105) abutting against each other, the cleaning brush (703) is driven by transmission to clean the position of the end of the waste lithium iron phosphate battery (105) to be in contact with the conductive rod (505), so as to prevent some dust on the end of the waste lithium iron phosphate battery (105) from affecting the effect of power connection detection and identification. After the conductive rod (505) and the end of the waste lithium iron phosphate battery (105) abut against each other, the elastic component is used to push the end of each group of triangular plates (702) to abut against the outer side of the conductive rod (505), so as to prevent the conductive rod (505) from deviating and shaking, thereby ensuring a more accurate detection and identification operation.

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