A highly safe waste lithium battery material recycling and processing device

Abstract

The present invention provides a highly safe waste lithium battery material recovery and processing device, belonging to the technical field of waste lithium battery processing; comprising a brine tank, wherein the brine tank stores brine for lithium battery body discharge, and further comprising: a discharge mechanism, wherein the discharge mechanism comprises a reduction motor fixed to the side of the brine tank, wherein the output end of the reduction motor passes through the brine tank and is fixed with a drive disk, wherein the drive disk is located inside the brine tank, wherein multiple groups of discharge boxes are arranged inside the brine tank, wherein multiple discharge boxes of the same group are arranged along the axis of the drive disk, and a connecting frame is fixed on one side of the discharge box close to the reduction motor. The present invention places the lithium battery body in the discharge box through the arrangement of the discharge box, and the lithium battery body is sealed by the discharge box to prevent the lithium battery body from contacting with the brine, thereby eliminating the need for subsequent drying or drying treatment, simplifying the recovery and processing process of the lithium battery body, and thus improving the convenience of the recovery and processing work of the lithium battery body.

Description

Technical Field

[0001] The invention relates to the technical field of waste lithium battery processing, and in particular to a highly safe waste lithium battery material recovery and processing device. Background Art

[0002] When recycling waste lithium batteries, they need to be discharged, crushed, screened, magnetically separated, and sorted in sequence to obtain different metal materials, and then the obtained metal materials are acid-leached, precipitated, extracted, and refined. When discharging the waste lithium batteries, the waste lithium batteries are placed in a salt water pool, and the salt water is used as an electrolyte. The positive and negative electrodes of the lithium battery are in contact with the salt water. The salt water is used as a conductive medium to short-circuit the positive and negative electrodes of the waste lithium batteries, so that the batteries are slowly discharged through the salt water. After the discharge is completed, the discharged waste lithium batteries are fished out of the salt water pool, and then aired or dried. After the airing or drying is completed, they are crushed. By discharging the waste lithium batteries in advance, the subsequent crushing of the waste lithium batteries is safer.

[0003] In the discharge stage of waste lithium battery recycling and processing, the waste lithium batteries are usually placed in a salt water pool, and discharge is achieved by contacting the positive and negative electrodes of the batteries with the salt water. However, after the discharge is completed, the batteries need to be aired or dried, and the crushing operation can only be performed after the treatment is completed. For large-scale waste lithium battery recycling operations, each batch of batteries must undergo this airing or drying process after discharge, which greatly increases the cumbersomeness of the waste lithium battery recycling and processing work. Therefore, the present application provides a high-safety waste lithium battery material recycling and processing device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a highly safe waste lithium battery material recycling and processing device to solve the problem that waste lithium batteries need to be aired or dried after wet discharge, which greatly increases the complexity of waste lithium battery recycling and processing work.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A highly safe waste lithium battery material recovery and processing device comprises a salt water tank, wherein the salt water used for discharging the lithium battery body is stored in the salt water tank, and further comprises:

[0007] A discharge mechanism, wherein the discharge mechanism comprises a reduction motor fixed to the side of the salt water tank, the output end of the reduction motor passes through the salt water tank and is fixed with a driving disk, the driving disk is located inside the salt water tank, a plurality of groups of discharge boxes are arranged inside the salt water tank, the multiple discharge boxes of the same group are arranged along the axis of the driving disk, a connecting frame is fixed on one side of the discharge box close to the reduction motor, the driving disk and the multiple discharge boxes of the same group are sequentially connected through the connecting frame, the lithium battery body is stored inside the discharge box, and the lithium battery body is electrically connected to the discharge box;

[0008] During operation, the lithium battery body is placed in the discharge box to separate the lithium battery body from the salt water. The reduction motor drives the discharge box to rotate in the salt water of the salt water pool through the driving disk. The discharge box discharges the lithium battery body during the rotation process.

[0009] Preferably, the discharge box comprises a box body, the side of the box body is fixedly connected to the side of the connecting frame, the opening of the box body is connected to the upper cover by a buckle, the lithium battery body is stored in the box body, and two support bars and two springs are fixed on the side of the inner wall of the box body away from the upper cover, the support bars are in contact with the lithium battery body, the support bars are used to support and position the lithium battery body, the two springs are respectively in contact with the positive and negative electrodes of the lithium battery body, a rubber pad is fixed on the side of the upper cover close to the lithium battery body, the rubber pad is pressed on the lithium battery body, a square cover is fixed on the side of the inner wall of the box body, two conductive blocks are slidably connected to the inner wall of the square cover, the two conductive blocks are respectively electrically connected to the two springs, the facing surfaces of the two conductive blocks are both fixed with springs, the ends of the springs are fixedly connected to the inner wall of the square cover, the opposite surfaces of the two conductive blocks are in contact with each other, two conductive sheets are fixed on the side of the box body away from the upper cover, the two conductive sheets are respectively electrically connected to the two springs, a heat conducting component is arranged inside the box body, and the heat conducting component is used for heat conduction during the discharge process of the lithium battery body.

[0010] Preferably, the heat-conducting component includes a heat-conducting spring attached to the side of the lithium battery body, a plurality of flexible connectors are fixed to the side of the heat-conducting spring away from the lithium battery body, a heat-conducting column is inlaid on the side of the flexible connector, the side of the heat-conducting column away from the lithium battery body movably penetrates the box body and extends to the outside of the box body, the heat-conducting column located in the middle passes between the two conductive blocks, and an extrusion portion is provided on the circumferential surface of the heat-conducting column located in the middle, an inclined surface is provided on the side of the extrusion portion away from the lithium battery body, semicircular grooves are provided on the opposite surfaces of the two conductive blocks, an insulating sheet is fixed to the inner wall of the semicircular groove, the insulating sheet is attached to the circumferential surface of the heat-conducting column, slide rails are fixed to the opposite sides of the inner wall of the box body, a slider is slidably connected to the inner wall of the slide rail, a plurality of rubber blocks are fixed to the side of the slider close to the heat-conducting spring, and the rubber block is fixed to the side of the heat-conducting spring.

[0011] Preferably, a plurality of upper protrusions are provided on the side of the thermal conductive spring away from the support bar, and a plurality of lower protrusions are provided on the side of the thermal conductive spring close to the support bar. Both the upper protrusions and the lower protrusions are attached to the side of the lithium battery body, the flexible connecting part is fixed on the side of the upper protrusions and the lower protrusions, and a transverse groove is provided on the side of the thermal conductive spring.

[0012] Preferably, a bending portion is provided on a side of the upper convex portion away from the support bar, and the bending portion is used to guide the lithium battery body when it is placed in the box body.

[0013] Preferably, the end of the heat-conducting column away from the heat-conducting elastic sheet is spherical.

[0014] Preferably, the slider is in the shape of an isosceles trapezoid, and the shape of the slide rail matches the shape of the slider.

[0015] Preferably, the flexible connector includes a rubber film fixed to the side of the thermally conductive spring, the rubber film is sleeved on the end of the thermally conductive column, and the space formed between the rubber film and the thermally conductive spring is filled with thermally conductive oil, which is used for heat conduction between the thermally conductive spring and the thermally conductive column.

[0016] Preferably, an arc-shaped connecting rod is fixed on the side of the box body, and the arc-shaped connecting rod is used to connect two adjacent groups of discharge boxes.

[0017] Preferably, pen holders are fixed on opposite sides of the inner wall of the discharge box, and a marking pen is installed in the pen holder.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, the lithium battery body is placed in the discharge box through the setting of the discharge box, and the discharge box seals the lithium battery body to prevent the lithium battery body from contacting with salt water, thereby eliminating the need for subsequent drying or drying treatment, simplifying the recycling process of the lithium battery body, and thus improving the convenience of the recycling work of the lithium battery body.

[0020] Through the setting of the reduction motor and the drive disk, when the lithium battery body is placed in the discharge box for discharge, the reduction motor drives the discharge box to rotate slowly through the drive disk, thereby stirring the brine in the brine tank, ensuring that the brine concentration at various locations in the brine tank is consistent, creating a stable and reliable environment for the discharge of the lithium battery body, and ensuring the reliability and stability of the discharge process.

[0021] By setting the thermally conductive springs and the thermally conductive columns, after the lithium battery body is placed in the discharge box, the thermally conductive springs are tightly fitted to the sides of the lithium battery body. Heat is generated during the discharge process of the lithium battery body, and the heat is transferred to the thermally conductive springs. The thermally conductive springs then transfer the heat to the salt water through the thermally conductive columns, thereby achieving heat dissipation during the discharge process of the lithium battery body, preventing overheating during the discharge process of the lithium battery body, and ensuring the safety of the lithium battery body during the discharge process. At the same time, when a bulge appears during the discharge process of the lithium battery body, the bulge will cause the thermally conductive spring to deform. After the deformation, the thermally conductive spring still fits the lithium battery body, and after the deformation, the thermally conductive spring drives the length of the thermally conductive column extending from the discharge box to increase, thereby increasing the contact area between the thermally conductive column and the salt water, further improving the heat dissipation capacity of the lithium battery body, thereby once again ensuring the safety of the lithium battery body during the discharge process.

[0022] Through the setting of the extrusion part, when the lithium battery body bulges significantly, the heat-conducting spring sheet will be driven to produce a larger deformation. When the heat-conducting spring sheet is greatly deformed, it will drive the extrusion part on the heat-conducting column in the middle to squeeze the two conductive blocks, so that the two conductive blocks are separated. After separation, the circuit between the lithium battery body and the conductive sheet is disconnected. At this time, the lithium battery body no longer discharges, thereby effectively preventing the explosion hazard that may be caused by the continued bulging of the lithium battery body, and further improving the safety of the lithium battery body during the discharge process.

[0023] Through the arrangement of the slider and the slide rail, when the two conductive blocks are separated, the heat-conducting spring drives the slider to separate from the slide rail through the rubber block. At this time, the heat-conducting spring is freed from the restraint of the slider. When freed from the restraint, the heat-conducting spring can release the squeezing of the bulge position of the lithium battery body, thereby preventing the fragile electrode structure inside the lithium battery body from being damaged due to excessive squeezing of the heat-conducting spring, and preventing the outer shell of the lithium battery body from being broken due to excessive squeezing of the heat-conducting spring, thereby greatly improving the safety of the lithium battery body during discharge.

[0024] Through the setting of the marking pen, after multiple lithium battery bodies in the same batch have completed discharge, the upper cover is opened to take out the battery bodies. During this process, when a lithium battery body with a large bulge and not completed discharge passes the position of the marking pen, the marking pen will draw lines on its surface to mark the uncompleted discharge battery. As for the lithium battery bodies that have completed discharge or have a small bulge but have also completed discharge, they will not come into contact with the marking pen when passing the position of the marking pen. Through the design of the marking pen, the lithium battery bodies that have completed discharge and those that have not completed discharge can be distinguished. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to make and use the present disclosure.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the salt water tank of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the conductive sheet of the present invention;

[0029] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the discharge box of the present invention;

[0030] Figure 5 It is a cross-sectional view of the heat-conducting column of the present invention;

[0031] Figure 6 A cross-sectional view of a spring of the present invention;

[0032] Figure 7 A cross-sectional view of a marking pen of the present invention;

[0033] Figure 8 It is a cross-sectional view of the conductive block of the present invention;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the slider of the present invention;

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of the heat-conducting column of the present invention;

[0036] Fig.11 It is a schematic diagram of the three-dimensional structure of the heat-conducting spring of the present invention.

[0037] In the figure: 1. brine tank; 2. discharge mechanism; 3. reduction motor; 4. drive disk; 5. connecting frame; 6. discharge box; 7. upper cover; 8. box body; 9. conductive sheet; 10. spring one; 11. square cover; 12. conductive block; 13. spring two; 14. insulating sheet; 15. heat-conducting component; 16. heat-conducting spring sheet; 17. upper convex part; 18. bending part; 19. lower convex part; 20. flexible connector; 21. rubber film; 22. heat-conducting column; 23. extrusion part; 24. inclined surface; 25. support bar; 26. slider; 27. slide rail; 28. rubber block; 29. ​​arc-shaped connecting rod; 30. marking pen; 31. horizontal groove; 32. lithium battery body.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0039] The following is a detailed description of a highly safe waste lithium battery material recycling and processing device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] like Figure 1-Figure 11 As shown, an embodiment of the present invention provides a highly safe waste lithium battery material recovery and processing device, comprising a salt water tank 1, wherein the salt water for discharging the lithium battery body 32 is stored in the salt water tank 1, and further comprising:

[0043] The discharge mechanism 2 includes a reduction motor 3 fixed on the side of the salt water tank 1. The output end of the reduction motor 3 passes through the salt water tank 1 and is fixed with a driving disk 4. A sealing ring is installed in the salt water tank 1. The inner wall of the sealing ring is tightly fitted with the circumferential surface of the output shaft of the reduction motor 3 to achieve sealing between the output shaft of the reduction motor 3 and the salt water tank 1. The driving disk 4 is located inside the salt water tank 1. Multiple groups of discharge boxes 6 are arranged inside the salt water tank 1. Multiple discharge boxes 6 of the same group are arranged along the axis of the driving disk 4. A connecting frame 5 is fixed on one side of the discharge box 6 close to the reduction motor 3. The driving disk 4 and the multiple discharge boxes 6 of the same group are sequentially connected through the connecting frame 5. The lithium battery body 32 is stored inside the discharge box 6, and the lithium battery body 32 is electrically connected to the discharge box 6.

[0044] During operation, the lithium battery body 32 is placed in the discharge box 6 to separate the lithium battery body 32 from the salt water. After the lithium battery body 32 is discharged, no subsequent drying or drying is required, making the recycling of the lithium battery body 32 more convenient. The reduction motor 3 drives the discharge box 6 to rotate in the salt water of the salt water pool through the drive disk 4. The discharge box 6 discharges the lithium battery body 32 during the rotation process.

[0045] like Figure 4-Figure 8 As shown, in this embodiment, the discharge box 6 includes a box body 8, the side of the box body 8 is fixedly connected to the side of the connecting frame 5, the opening of the box body 8 is connected to the upper cover 7 by a buckle, the lithium battery body 32 is stored in the box body 8, and two support bars 25 and two springs 10 are respectively fixed on the side of the inner wall of the box body 8 away from the upper cover 7, the support bar 25 is in contact with the lithium battery body 32, the support bar 25 is used to support and position the lithium battery body 32, the two springs 10 are respectively in contact with the positive and negative electrodes of the lithium battery body 32, and the upper cover 7 is close to the lithium battery. A rubber pad is fixed to one side of the body 32, and the rubber pad is pressed on the lithium battery body 32. A square cover 11 is fixed to the side of the inner wall of the box body 8. The inner wall of the square cover 11 is slidably connected to two conductive blocks 12, and the two conductive blocks 12 are electrically connected to the two springs 10 respectively. The two conductive blocks 12 are fixed to the opposite sides of the two conductive blocks 12. The ends of the springs 13 are fixedly connected to the inner wall of the square cover 11, and the opposite surfaces of the two conductive blocks 12 fit each other. Two conductive sheets 9 are fixed to the side of the box body 8 away from the upper cover 7. The two conductive sheets 9 are respectively connected to the two springs 10. 13 is electrically connected, a heat-conducting component 15 is arranged inside the box body 8, and the heat-conducting component 15 is used for heat conduction during the discharge process of the lithium battery body 32. The box body 8 is connected to the upper cover 7 by buckles to form a closed space, which effectively prevents the lithium battery body 32 from contacting with salt water, so that no subsequent drying or drying treatment is required after the discharge is completed, making the recycling of the lithium battery body 32 more convenient. The support bar 25 plays a role in supporting and positioning the lithium battery body 32 to ensure its stable position in the discharge box 6. The spring 10 is respectively connected to the lithium battery body 32 The positive and negative electrodes are fitted together, and a conductive loop is formed with the conductive block 12 and the conductive sheet 9, so that the lithium battery body 32 can discharge normally. The rubber pad can prevent the lithium battery body 32 from shaking in the discharge box 6, and at the same time play a certain buffering role. The square cover 11 provides a space for installation and sliding of the conductive block 12. The spring 13 ensures that the conductive block 12 is tightly fitted under normal circumstances to maintain circuit connectivity. The setting of the heat conductive component 15 can timely remove the heat generated by the lithium battery body 32 during the discharge process to prevent it from overheating and ensure the safety of the discharge process.

[0046] like Figure 5-Figure 10As shown, in this embodiment, the heat-conducting component 15 includes a heat-conducting spring 16 attached to the side of the lithium battery body 32, and a plurality of flexible connectors 20 are fixed on the side of the heat-conducting spring 16 away from the lithium battery body 32. A heat-conducting column 22 is embedded on the side of the flexible connector 20. The side of the heat-conducting column 22 away from the lithium battery body 32 movably penetrates the box body 8 and extends to the outside of the box body 8. The heat-conducting column 22 located in the middle passes between the two conductive blocks 12, and an extrusion portion 23 is provided on the circumferential surface of the heat-conducting column 22 located in the middle. The side of the extrusion portion 23 away from the lithium battery body 32 is provided with an inclined surface 24, and the opposite surfaces of the two conductive blocks 12 are A semicircular groove is provided, and an insulating sheet 14 is fixed on the inner wall of the semicircular groove. The insulating sheet 14 is fitted with the circumferential surface of the heat-conducting column 22. Slide rails 27 are fixed on the opposite sides of the inner wall of the box body 8. The inner wall of the slide rail 27 is slidably connected with a slider 26. A plurality of rubber blocks 28 are fixed on the side of the slider 26 close to the heat-conducting spring sheet 16. The rubber block 28 is fixed to the side of the heat-conducting spring sheet 16. A sealing ring is inlaid at the position of the heat-conducting column 22 inside the box body 8. The inner wall of the sealing ring is in close contact with the circumferential surface of the heat-conducting column 22 to achieve sealing between the heat-conducting column 22 and the box body 8. The insulating sheet 14 is used to prevent electrical connection between the heat-conducting column 22 and the conductive block 12. The spring 16 fits tightly to the side of the lithium battery body 32 and can absorb the heat generated by its discharge. The flexible connector 20 not only ensures the thermal conductivity between the thermally conductive spring 16 and the thermally conductive column 22, but also prevents the thermally conductive spring 16 from pulling and damaging the thermally conductive column 22 when the thermally conductive spring 16 is deformed. The thermally conductive column 22 conducts heat to the salt water to achieve heat dissipation during the discharge of the lithium battery body 32. When the lithium battery body 32 bulges, the deformation of the thermally conductive spring 16 drives the thermally conductive column 22 to move, increasing the contact area between the thermally conductive column 22 and the salt water, further enhancing the heat dissipation capacity. The extrusion portion 23 on the thermally conductive column 22 in the middle is located when the lithium battery body 32 bulges more. When the thermally conductive spring sheet 16 is greatly deformed, the insulating sheet 14 at the conductive block 12 is squeezed by the inclined surface 24 to separate the two conductive blocks 12, cut off the circuit, and prevent the lithium battery body 32 from continuing to bulge and causing the risk of explosion. The slide rail 27 cooperates with the slider 26 to restrain the thermally conductive spring sheet 16 to a certain extent under normal circumstances. When the two conductive blocks 12 are separated, the thermally conductive spring sheet 16 drives the slider 26 to separate from the slide rail 27 through the rubber block 28, releases the squeezing of the bulging position of the lithium battery body 32, prevents the internal structure of the lithium battery body 32 from being damaged or the shell from being ruptured due to excessive squeezing, and improves the safety of the discharge process.

[0047] like Fig.11As shown, in the present embodiment, a plurality of upper protrusions 17 are provided on the side of the thermally conductive spring piece 16 away from the support bar 25, and a plurality of lower protrusions 19 are provided on the side of the thermally conductive spring piece 16 close to the support bar 25. Both the upper protrusions 17 and the lower protrusions 19 are fitted on the side of the lithium battery body 32, and the flexible connecting portion is fixed on the side of the upper protrusions 17 and the lower protrusions 19. A transverse groove 31 is provided on the side of the thermally conductive spring piece 16, and the plurality of upper protrusions 17 are not connected to each other, and the plurality of lower protrusions 19 are not connected to each other. The design of the upper protrusions 17, the lower protrusions 19 and the transverse groove 31 is utilized to improve the deformation ability of the thermally conductive spring piece 16, so that the thermally conductive spring piece 16 is more easily deformed, so that it can be closely fitted with the bulging position of the lithium battery body 32 and adapt to the bulging of the lithium battery body 32.

[0048] like Fig.11 As shown, in the present embodiment, a bending portion 18 is provided on the side of the upper protrusion 17 away from the support bar 25, and the bending portion 18 is used to guide the lithium battery body 32 when it is placed in the box body 8. The bending portion 18 plays a guiding role when the lithium battery body 32 is placed. When the lithium battery body 32 is placed into the box body 8 from top to bottom, the lithium battery body 32 can be more conveniently and accurately placed in the predetermined position in the discharge box 6 through the guidance of the bending portion 18, thereby improving the convenience of operation.

[0049] like Figure 5 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 As shown, in this embodiment, the end of the heat-conducting column 22 away from the heat-conducting elastic sheet 16 is spherical, which can increase the contact area with the salt water and improve the efficiency of heat transfer.

[0050] like Fig. 9 and Fig.10 As shown, in this embodiment, the slider 26 is in an isosceles trapezoidal shape, and the shape of the slide rail 27 is adapted to the shape of the slider 26. The isosceles trapezoidal slider 26 cooperates with the slide rail 27 of the adapted shape, which can ensure that the slider 26 slides stably in the slide rail 27 and prevent the slider 26 from separating from the slide rail 27 when the slider 26 slides in the slide rail 27.

[0051] like Figure 5 and Figure 7As shown, in this embodiment, the flexible connector 20 includes a rubber film 21 fixed to the side of the heat-conducting spring 16, the rubber film 21 is sleeved on the end of the heat-conducting column 22, and the space formed between the rubber film 21 and the heat-conducting spring 16 is filled with heat-conducting oil, which is used for heat conduction between the heat-conducting spring 16 and the heat-conducting column 22. The rubber film 21 has good flexibility and can adapt to the deformation of the heat-conducting spring 16. At the same time, the rubber film 21 is sleeved on the end of the heat-conducting column 22 to ensure a tight connection with the heat-conducting column 22. The heat-conducting oil filled in the rubber film 21 improves the heat conduction efficiency between the heat-conducting spring 16 and the heat-conducting column 22, so that the heat can be quickly transferred from the heat-conducting spring 16 to the heat-conducting column 22, and then conducted to the salt water, effectively realizing the heat dissipation of the lithium battery body 32, and ensuring its safety during the discharge process.

[0052] like Figure 2 and Figure 3 As shown, in this embodiment, an arc-shaped connecting rod 29 is fixed to the side of the box body 8. The arc-shaped connecting rod 29 is used to connect two adjacent groups of discharge boxes 6. The arc-shaped connecting rod 29 connects the two adjacent groups of discharge boxes 6, thereby enhancing the structural stability of the discharge boxes 6. When the reduction motor 3 drives the driving disk 4 to rotate, multiple groups of discharge boxes 6 can rotate synchronously and stably, thereby ensuring a uniform stirring effect on the brine.

[0053] like Figure 4 and Figure 7 As shown, in the present embodiment, pen holders are fixed on opposite sides of the inner wall of the discharge box 6, and a marking pen 30 is installed in the pen holder. After multiple lithium battery bodies 32 in the same batch have completed discharge, when the upper cover 7 is opened to take out the battery bodies, the marking pen 30 can mark the lithium battery bodies 32 that have produced larger bulges and have not completed discharge. When the lithium battery bodies 32 that have completed discharge or have produced smaller bulges but have also completed discharge pass the position of the marking pen 30, they will not contact the marking pen 30. In this way, the lithium battery bodies 32 that have completed discharge and those that have not completed discharge can be conveniently distinguished, which is convenient for subsequent targeted treatment of the batteries that have not completed discharge.

[0054] Working principle: When storing the lithium battery body 32, rotate the discharge box 6 so that the opening of the discharge box 6 faces upward, then open the buckle at the upper cover 7, place the lithium battery body 32 in the box body 8 of the discharge box 6, and connect the positive and negative poles of the lithium battery body 32 to the two springs 10 respectively, then cover the upper cover 7 and buckle the upper cover 7 with the buckle. After the lithium battery body 32 is placed, add salt water of appropriate concentration into the salt water tank 1. At this time, the closed design of the box body 8 and the upper cover 7 of the discharge box 6 can effectively isolate the lithium battery body 32 from the salt water in the salt water tank 1, avoid direct contact of the battery with the salt water, and omit the subsequent drying or drying process. At the same time, the spring 10 is respectively fitted with the positive and negative poles of the lithium battery body 32 to ensure that it forms a conductive circuit with the conductive block 12 and the conductive sheet 9, and the conductive sheet 9 is in contact with the salt water so that the lithium battery body 32 can be discharged normally in the discharge box 6;

[0055] The reduction motor 3 fixed on the side of the salt water tank 1 is started, and its output end drives the driving disk 4 to rotate inside the salt water tank 1. The driving disk 4 drives multiple groups of discharge boxes 6 arranged along its axis to rotate slowly in sequence through the connecting frame 5. During the rotation process, the discharge box 6 stirs the salt water, so that the concentration of the salt water in each part of the salt water tank 1 is uniform, providing a stable and reliable environment for the discharge of the lithium battery body 32, and ensuring the stability and reliability of the discharge process;

[0056] The lithium battery body 32 generates heat during the discharge process, and the heat-conducting spring sheet 16 attached to its side absorbs the heat. The heat-conducting spring sheet 16 is connected to the heat-conducting column 22 through the flexible connector 20. The rubber film 21 in the flexible connector 20 is sleeved on the end of the heat-conducting column 22, and the heat-conducting oil filled between the rubber film 21 and the heat-conducting spring sheet 16 realizes the heat conduction between the two. The heat is transferred to the heat-conducting column 22 through the heat-conducting spring sheet 16 and the heat-conducting oil, and then conducted to the salt water by the heat-conducting column 22, so as to realize the heat dissipation of the lithium battery body 32 and prevent the lithium battery body 32 from overheating during the discharge process.

[0057] When a bulge appears in the lithium battery body 32 during discharge, the bulge will push the heat conductive spring 16 to deform. The design of the upper convex portion 17, the lower convex portion 19 and the transverse groove 31 is used to improve the deformation ability of the heat conductive spring 16, so that the heat conductive spring 16 is more likely to deform, so that it can be closely attached to the bulge position of the lithium battery body 32 and adapt to the bulge of the lithium battery body 32. In addition, due to the presence of the flexible connector 20, when the heat conductive spring 16 is deformed, the rubber film 21 of the flexible connector 20 can also be deformed, so that the deformation of the heat conductive spring 16 will not pull and damage the heat conductive column 22, and the heat conductive function between the two can be guaranteed. The deformed heat conductive spring 16 drives the heat conductive column 22 to move away from the lithium battery body 32, so that the length of the heat conductive column 22 extending from the discharge box 6 is increased, the contact area between the heat conductive column 22 and the salt water is expanded, and the heat dissipation capacity of the lithium battery body 32 is further enhanced.

[0058] When the lithium battery body 32 bulges greatly and causes the heat-conducting spring sheet 16 to be greatly deformed, the extrusion portion 23 on the middle heat-conducting column 22 moves away from the lithium battery due to the large deformation of the heat-conducting spring sheet 16, and the inclined surface 24 of the extrusion portion 23 squeezes the insulating sheet 14 at the two conductive blocks 12, so that the two conductive blocks 12 that were originally attached are separated. After the two conductive blocks 12 are separated, the circuit between the lithium battery body 32 and the conductive sheet 9 is disconnected, and the lithium battery body 32 stops discharging, effectively preventing the explosion hazard that may be caused by continued bulging, and improving the safety of the lithium battery body 32 during the discharge process;

[0059] During the deformation of the heat-conducting spring 16, the rubber block 28 will be pulled, and the rubber block 28 will be deformed synchronously. At the same time, when the heat-conducting spring 16 is deformed, the slider 26 is driven to move along the inner wall of the slide rail 27 through the rubber block 28. When the two conductive blocks 12 are separated, the heat-conducting spring 16 drives the slider 26 to separate from the slide rail 27 through the rubber block 28. After separation, the heat-conducting spring 16 is freed from the restraint of the slider 26, thereby releasing the extrusion on the bulging position of the lithium battery body 32, preventing the fragile electrode structure inside the lithium battery body 32 from being damaged or causing the shell to rupture due to excessive extrusion, further improving the safety of the discharge process. After the slider 26 is separated from the slide rail 27, under the influence of the elastic force of the heat-conducting spring 16 itself and the extrusion of the bulging of the lithium battery body 32, the heat-conducting spring 16 will recover from the bent state to the flat state. When the heat-conducting spring 16 recovers to the flat state, it will drive the slider 26 to move to a position on the side of the slide rail 27 away from the lithium battery body 32;

[0060] After multiple lithium battery bodies 32 of the same batch have completed discharge, the brine in the brine tank 1 is drained, and then the buckle is opened, and then the upper cover 7 is moved upward to separate the upper cover 7 from the box body 8. After separation, the lithium battery body 32 can be taken out. When the lithium battery body 32 with a large bulge and not yet completed discharge passes the position of the marking pen 30 during the upward movement, the marking pen 30 will draw a line on its surface to mark the battery that has not completed discharge. When the lithium battery body 32 that has completed discharge or has a small bulge but has also completed discharge passes the position of the marking pen 30, it will not contact the marking pen 30, thereby conveniently distinguishing the lithium battery bodies 32 that have completed discharge and those that have not completed discharge. For the lithium battery body 32 that has not completed discharge, physical discharge can be used for discharge, that is, first use liquid nitrogen to cool it at low temperature and then punch it to force discharge. At the same time, when the lithium battery body 32 with a small bulge moves upward, its bulge position will squeeze the thermal spring 16 to deform the thermal spring 16 until the thermal spring 16 is separated from the lithium battery body 32;

[0061] After the lithium battery body 32 is taken out from the discharge box 6, the thermally conductive spring 16 that is slightly deformed due to the lithium battery body 32 that has a small bulge, after the lithium battery body 32 is separated from the thermally conductive spring 16, the thermally conductive spring 16 returns to a straight state under the action of its own elastic force, and at the same time, the thermally conductive spring 16 drives the thermally conductive column 22 to move in the opposite direction and return to the initial non-moving state during the process of returning to the straight state;

[0062] For the discharge box 6 in which the slider 26 is separated from the slide rail 27, before placing the subsequent lithium battery body 32, the thermally conductive spring 16 needs to be moved to bend the thermally conductive spring 16 away from the thermally conductive column 22 until the thermally conductive spring 16 drives the slider 26 to correspond to the position of the slide rail 27. After the slider 26 corresponds to the position of the slide rail 27, the thermally conductive spring 16 is slowly released to restore the thermally conductive spring 16 to a straight state. During the process of the thermally conductive spring 16 restoring to a straight state, the thermally conductive spring 16 drives the slider 26 Insert the slide rail 27 to connect the slider 26 with the slide rail 27, and complete the installation and positioning of the thermally conductive spring 16. When the thermally conductive spring 16 bends in a direction away from the thermally conductive column 22, the flexible connector 20 drives the thermally conductive column 22 to move in the opposite direction. During the reverse movement of the thermally conductive column 22 located in the middle, the extrusion portion 23 is driven to move in the opposite direction, so that the extrusion portion 23 is separated from the insulating sheet 14 of the conductive block 12. After separation, the two conductive blocks 12 are restored to a mutually fitting state under the action of the corresponding spring 2 13.

[0063] The present invention encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A highly safe waste lithium battery material recycling and processing device, comprising a brine tank (1), wherein the brine tank (1) stores brine for discharging a lithium battery body (32), characterized in that: Also includes: A discharge mechanism (2), the discharge mechanism (2) comprising a reduction motor (3) fixed to a side of a salt water tank (1), the output end of the reduction motor (3) passing through the salt water tank (1) and being fixed with a drive disk (4), the drive disk (4) being located inside the salt water tank (1), a plurality of groups of discharge boxes (6) being arranged inside the salt water tank (1), the plurality of discharge boxes (6) in the same group being arranged along the axis of the drive disk (4), a connecting frame (5) being fixed on a side of the discharge box (6) close to the reduction motor (3), the drive disk (4) and the plurality of discharge boxes (6) in the same group being connected in sequence via the connecting frame (5), a lithium battery body (32) being stored inside the discharge box (6), and the lithium battery body (32) being electrically connected to the discharge box (6); The discharge box (6) comprises a box body (8), the side of the box body (8) is fixedly connected to the side of the connecting frame (5), the opening of the box body (8) is connected to the upper cover (7) by a buckle, the lithium battery body (32) is stored inside the box body (8), and two support bars (25) and two springs (10) are respectively fixed on the side of the inner wall of the box body (8) away from the upper cover (7), the support bar (25) is in contact with the lithium battery body (32), the support bar (25) is used to support and position the lithium battery body (32), the two springs (10) are respectively in contact with the positive electrode and the negative electrode of the lithium battery body (32), and a rubber pad is fixed on the side of the upper cover (7) close to the lithium battery body (32), and the rubber pad is pressed on the lithium battery body (32). A square cover (11) is fixed to the side of the inner wall of the box body (8), and two conductive blocks (12) are slidably connected to the inner wall of the square cover (11), and the two conductive blocks (12) are respectively electrically connected to the two springs 1 (10), and the two conductive blocks (12) are fixed to the opposite sides of the two conductive blocks (12), and the ends of the springs 2 (13) are fixedly connected to the inner wall of the square cover (11), and the opposite surfaces of the two conductive blocks (12) are in contact with each other, and two conductive sheets (9) are fixed to the side of the box body (8) away from the upper cover (7), and the two conductive sheets (9) are respectively electrically connected to the two springs 2 (13), and a heat conduction component (15) is arranged inside the box body (8), and the heat conduction component (15) is used for heat conduction of the lithium battery body (32) during the discharge process; The heat-conducting assembly (15) comprises a heat-conducting spring sheet (16) attached to the side of the lithium battery body (32); a plurality of flexible connectors (20) are fixed to the side of the heat-conducting spring sheet (16) away from the lithium battery body (32); a heat-conducting column (22) is embedded on the side of the flexible connector (20); the side of the heat-conducting column (22) away from the lithium battery body (32) movably penetrates the box body (8) and extends to the outside of the box body (8); the heat-conducting column (22) located in the middle passes between the two conductive blocks (12); and an extrusion portion (22) is provided on the circumferential surface of the heat-conducting column (22) located in the middle. 3), a slope (24) is provided on the side of the extrusion portion (23) away from the lithium battery body (32), semicircular grooves are provided on the opposite surfaces of the two conductive blocks (12), an insulating sheet (14) is fixed to the inner wall of the semicircular groove, the insulating sheet (14) is in contact with the circumferential surface of the heat-conducting column (22), slide rails (27) are fixed to the opposite sides of the inner wall of the box body (8), a slider (26) is slidably connected to the inner wall of the slide rail (27), a plurality of rubber blocks (28) are fixed to the side of the slider (26) close to the heat-conducting spring sheet (16), and the rubber blocks (28) are fixed to the side of the heat-conducting spring sheet (16); During operation, the lithium battery body (32) is placed in the discharge box (6) to separate the lithium battery body (32) from the salt water. The reduction motor (3) drives the discharge box (6) to rotate in the salt water of the salt water pool through the drive disk (4). The discharge box (6) discharges the lithium battery body (32) during the rotation process.

2. The high-safety waste lithium battery material recycling and processing device according to claim 1 is characterized in that: A plurality of upper convex portions (17) are provided on a side of the heat-conducting spring sheet (16) away from the support bar (25), and a plurality of lower convex portions (19) are provided on a side of the heat-conducting spring sheet (16) close to the support bar (25). The upper convex portions (17) and the lower convex portions (19) are both attached to the side of the lithium battery body (32), the flexible connection portion is fixed to the side of the upper convex portions (17) and the lower convex portions (19), and a transverse groove (31) is provided on the side of the heat-conducting spring sheet (16).

3. The high-safety waste lithium battery material recycling and processing device according to claim 2 is characterized in that: A bending portion (18) is provided on one side of the upper convex portion (17) away from the support bar (25), and the bending portion (18) is used to guide the lithium battery body (32) when it is placed in the box body (8).

4. The high-safety waste lithium battery material recycling and processing device according to claim 1 is characterized in that: One end of the heat-conducting column (22) away from the heat-conducting elastic sheet (16) is spherical.

5. The high-safety waste lithium battery material recycling and processing device according to claim 1 is characterized in that: The slide block (26) is in the shape of an isosceles trapezoid, and the shape of the slide rail (27) matches the shape of the slide block (26).

6. The high-safety waste lithium battery material recycling and processing device according to claim 1 is characterized in that: The flexible connector (20) comprises a rubber film (21) fixed to the side of the heat-conducting spring sheet (16); the rubber film (21) is sleeved on the end of the heat-conducting column (22); a space formed between the rubber film (21) and the heat-conducting spring sheet (16) is filled with heat-conducting oil, and the heat-conducting oil is used for heat conduction between the heat-conducting spring sheet (16) and the heat-conducting column (22).

7. The high-safety waste lithium battery material recycling and processing device according to claim 1 is characterized in that: An arc-shaped connecting rod (29) is fixed to the side of the box body (8), and the arc-shaped connecting rod (29) is used to connect two adjacent groups of discharge boxes (6).

8. The high-safety waste lithium battery material recycling and processing device according to claim 1 is characterized in that: Pen holders are fixed on opposite sides of the inner wall of the discharge box (6), and a marking pen (30) is installed in the pen holder.

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