A discharge device for recycling waste lithium-ion batteries

Abstract

The invention relates to the technical field of battery discharge, and in particular discloses a discharge device for recycling waste lithium ion batteries, comprising a conveying mechanism and a spraying mechanism used in conjunction with the conveying mechanism; the spraying mechanism comprises a container, a liquid pump and a spray head, the liquid pump is used to extract a conductive electrolyte in the container and spray the conductive electrolyte onto the waste lithium ion battery conveyed by the conveying mechanism via the spray head, the conductive electrolyte sprayed onto the waste lithium ion battery discharges the waste lithium ion battery, and the conductive electrolyte sprayed onto the waste lithium ion battery conveyed by the spray head flows back to the container; the conveying mechanism realizes automatic conveyance of the waste lithium ion battery, the conductive electrolyte sprayed by the spray head neutralizes the residual power of the waste lithium ion battery, realizes discharge treatment of the waste lithium ion battery, and avoids the risk of fire and combustion of the waste lithium ion battery due to current short circuit in the subsequent crushing process.

Description

Technical Field

[0001] The invention relates to the technical field of battery discharge, and in particular discloses a discharge device for recycling waste lithium-ion batteries. Background Art

[0002] Battery is one of the commonly used power supply products. When the battery is scrapped and becomes a waste lithium-ion battery, in order to achieve energy recycling and reduce environmental pollution, it is often necessary to recycle the waste lithium-ion battery. In the process of recycling the waste lithium-ion battery, the waste lithium-ion battery needs to be cut and crushed. In the process of cutting and crushing the waste lithium-ion battery, since there is often residual electricity in the waste lithium-ion battery, the residual electricity of the waste lithium-ion battery will cause the current short circuit in the crushing process. The current short circuit often generates heat and causes fire, resulting in the waste lithium-ion battery cannot be recycled normally, and in severe cases, it will also cause a fire. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a discharge device for recycling waste lithium-ion batteries. The conductive electrolyte sprayed by the spray head neutralizes the residual power of the waste lithium-ion batteries, thereby realizing the discharge treatment of the waste lithium-ion batteries and avoiding the risk of fire and combustion of the waste lithium-ion batteries due to current short circuit in the subsequent crushing process.

[0004] To achieve the above-mentioned purpose, a discharge device for recycling waste lithium-ion batteries of the present invention comprises a conveying mechanism and a spraying mechanism used in conjunction with the conveying mechanism, wherein the conveying mechanism is used to convey waste lithium-ion batteries from the outside to move; the spraying mechanism comprises a container, a liquid pump and a spray head, the container is used to contain conductive electrolyte from the outside, the liquid pump is used to extract the conductive electrolyte in the container and spray the conductive electrolyte onto the waste lithium-ion batteries conveyed by the conveying mechanism through the spray head, the conductive electrolyte sprayed onto the waste lithium-ion batteries discharges the waste lithium-ion batteries, and the conductive electrolyte sprayed onto the waste lithium-ion batteries conveyed by the conveying mechanism by the spray head flows back to the container.

[0005] Preferably, the spray mechanism also includes a hollow box, the conveying mechanism passes through the hollow box, the spray head is located in the hollow box, the container is located below the conveying mechanism, and the conductive electrolyte sprayed by the spray head sprays the waste lithium-ion batteries input into the hollow box by the conveying mechanism; the hollow box is provided with an exhaust hole located above the spray head, and the exhaust hole is connected to an external exhaust fan or an external vacuum generating device.

[0006] Preferably, the conveying mechanism includes a frame, an annular track rotatably arranged on the frame, and a first motor for driving the annular track to rotate, the annular track is formed with a horizontal portion located below the spray head, the horizontal portion is used to carry the waste lithium-ion batteries, the annular track is provided with a plurality of through holes penetrating the annular track, the plurality of through holes extend along the length direction of the annular track, and the conductive electrolyte sprayed from the spray head flows back into the container through the through holes.

[0007] Preferably, the frame has two support bars arranged in parallel, and multiple rollers are rotatably arranged between the two support bars. The multiple rollers are arranged along the length direction of the support bars, and the annular track is arranged on the outside of the multiple rollers. The first motor is used to drive the rollers to rotate, and the annular track is made of stainless steel.

[0008] Preferably, there are multiple spray heads, and the spray directions of the conductive electrolyte sprayed by the multiple spray heads are cross-arranged, and the conductive electrolyte sprayed by the multiple spray heads is sprayed to different parts of the waste lithium-ion batteries.

[0009] Preferably, the spray mechanism further comprises a rotatably arranged first carrier, a second motor for driving the first carrier to rotate, the spray head is arranged on the first carrier, and the second motor drives the spray head to rotate via the first carrier to change the spray direction of the conductive electrolyte sprayed from the spray head.

[0010] Preferably, the rotation axis of the first carrier is parallel to the moving direction of the waste lithium-ion batteries transported by the conveying mechanism.

[0011] Preferably, the first carrier is equipped with a third motor, the output shaft of the third motor is connected to the second carrier, the spray head is arranged on the second carrier, the third motor drives the spray head to rotate via the second carrier, the rotation axis of the second carrier is parallel to the moving direction of the waste lithium-ion batteries transported by the conveying mechanism, and the rotation axis of the first carrier is cross-arranged with the rotation axis of the second carrier.

[0012] Preferably, the spray mechanism also includes a first electric cylinder and a third carrier connected to the piston rod of the first electric cylinder. There are multiple spray heads, and the multiple spray heads are respectively arranged on the third carrier. The multiple spray heads on the third carrier are in a rectangular array, and the first electric cylinder drives the spray heads to move via the third carrier.

[0013] Preferably, the spray mechanism includes a plurality of support rods arranged in parallel, each support rod is connected to a transfer rod, all the support rods are rotatably arranged on a common plate via the transfer rod, the common plate is provided with a slide groove, the spray mechanism also includes a second electric cylinder, the piston rod of the second electric cylinder is provided with a rotating wheel body, the wheel body is movably arranged in the slide groove, the second electric cylinder drives the plurality of support rods to swing, each support rod is provided with a plurality of spray heads, and the spray directions of the conductive electrolyte sprayed from at least two spray heads of the same support rod are cross-arranged.

[0014] The beneficial effects of the present invention are as follows: the conveying mechanism realizes the automatic conveying of waste lithium-ion batteries, the conductive electrolyte sprayed by the spray head neutralizes the residual power of the waste lithium-ion batteries, realizes the discharge treatment of the waste lithium-ion batteries, avoids the risk of fire and combustion of the waste lithium-ion batteries due to current short circuit in the subsequent crushing process, and ensures that the waste lithium-ion batteries can be recycled normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the conveying mechanism and the spray head of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the first motor, the first carrier, the second motor, the second carrier and the spray head of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the first electric cylinder, the third carrier and the spray head of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the support rod, the transfer rod, the common plate, the second electric cylinder and the sprinkler head of the present invention.

[0020] Reference numerals include:

[0021] 1—Conveying mechanism 2—Spraying mechanism 3—Container 3

[0022] 4—Spray head 5—Disassembly unit 6—Drying unit

[0023] 7—cleaning unit 8—hollow box 9—frame

[0024] 11-annular crawler 12-horizontal part 13-support bar

[0025] 14 - first carrier 15 - second motor 16 - third motor

[0026] 17 - second carrier 18 - first electric cylinder 19 - third carrier

[0027] 21—Support rod 22—Adapter rod 23—Common plate

[0028] 24 - slideway 25 - second electric cylinder 26 - wheel body

[0029] 111—Waste lithium-ion batteries. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0031] Embodiment 1

[0032] See also Figures 1 to 3 As shown, a discharge device for recycling waste lithium-ion batteries of the present invention comprises a conveying mechanism 1 and a spraying mechanism 2 used in conjunction with the conveying mechanism 1. The conveying mechanism 1 is used to convey waste lithium-ion batteries 111 from the outside to move, thereby realizing the automatic transfer of the waste lithium-ion batteries 111. The spraying mechanism 2 comprises a container 3, a liquid pump and a spray head 4. The container 3 is used to contain conductive electrolyte from the outside. The conductive electrolyte is a prior art and will not be described in detail here. The liquid pump is used to extract the conductive electrolyte in the container 3 and spray the conductive electrolyte on the waste lithium-ion batteries 111 conveyed by the conveying mechanism 1 through the spray head 4. The conductive electrolyte sprayed on the waste lithium-ion batteries 111 discharges the waste lithium-ion batteries 111. The conductive electrolyte sprayed on the waste lithium-ion batteries 111 conveyed by the conveying mechanism 1 by the spray head 4 flows back into the container 3, thereby realizing the recycling of the conductive electrolyte. Preferably, the conductive electrolyte sprayed by the spray head 4 flows back into the container 3 after being filtered by a filter. The filter filters out the impurities in the conductive electrolyte to prevent the impurities from clogging the spray head 4.

[0033] During the use of the discharge device, the manipulator automatically transfers the waste lithium-ion battery 111 to the conveying mechanism 1, and the conveying mechanism 1 realizes the automatic conveyance of the waste lithium-ion battery 111. The conductive electrolyte sprayed by the spray head 4 is sprayed onto the waste lithium-ion battery 111 conveyed by the conveying mechanism 1 to neutralize the residual power of the waste lithium-ion battery 111, thereby realizing the discharge treatment of the waste lithium-ion battery 111, avoiding the risk of fire and combustion of the waste lithium-ion battery 111 due to current short circuit in the subsequent crushing process, and ensuring that the waste lithium-ion battery 111 can be recycled normally.

[0034] Preferably, the discharge device is also equipped with a disassembly unit 5, which includes a rotatable disc blade and a motor for driving the disc blade to rotate. After the spray mechanism 2 completes discharging the used lithium-ion battery 111, the motor drives the disc blade to rotate, and the rotating disc blade is used to cut the shell of the used lithium-ion battery 111, thereby realizing automatic crushing of the used lithium-ion battery 111.

[0035] Preferably, the discharge device is further provided with a drying unit 6, which includes a drying box, a heating element in the drying box, and a circulating fan connected to the drying box. After the spray mechanism 2 completes the discharge of the waste lithium-ion battery 111, the waste lithium-ion battery 111 enters the drying box, and the circulating fan drives the air in the drying box to circulate, so that the waste lithium-ion battery 111 is quickly dried, and the disassembly unit 5 crushes the waste lithium-ion battery 111 dried by the drying unit 6.

[0036] Preferably, the discharge device is further provided with a cleaning unit 7, and the structure of the cleaning unit 7 is the same as that of the spray unit, which will not be described in detail here. The cleaning unit 7 extracts water from the outside and sprays the extracted water onto the waste lithium-ion battery 111 after the discharge treatment by the spray mechanism 2, and the conductive electrolyte on the waste lithium-ion battery 111 is washed away by the water sprayed by the cleaning unit 7, and then the drying unit 6 dries the water outside the waste lithium-ion battery 111 after the cleaning by the cleaning unit 7.

[0037] The spray mechanism 2 further includes a hollow box 8, which is roughly in the shape of a rectangular parallelepiped. The conveying mechanism 1 passes through the hollow box 8, the spray head 4 is located in the hollow box 8, and the container 3 is located below the conveying mechanism 1. The conductive electrolyte sprayed by the spray head 4 sprays the waste lithium-ion batteries 111 input into the hollow box 8 by the conveying mechanism 1. When the spray mechanism 2 sprays and discharges the waste lithium-ion batteries 111, the hollow box 8 is used to block the sprayed conductive electrolyte to prevent the conductive electrolyte from splashing around and polluting the environment or causing waste.

[0038] The conductive electrolyte sprayed by the spray head 4 automatically falls into the container 3 under the action of its own gravity, realizing the automatic collection of the conductive electrolyte and ensuring that the conductive electrolyte can be recycled. The hollow box 8 is provided with an exhaust hole located above the spray head 4, and the exhaust hole is connected to the external exhaust fan or the external vacuum generating device. Of course, according to actual needs, the exhaust fan can also be directly installed in the hollow box 8. In this embodiment, the hollow box 8 is provided with a perspective window, and the staff can watch the spraying state of the spray mechanism 2 through the perspective window. The water mist in the hollow box 8 is extracted by the exhaust fan or the vacuum generating device to avoid the water mist blurring the vision and causing poor observation of the user.

[0039] The conveying mechanism 1 includes a frame 9, an annular crawler 11 rotatably mounted on the frame 9, and a first motor for driving the annular crawler 11 to rotate. The frame 9 is formed by fixedly connecting metal parts. The main body of the frame 9 is in the shape of a rectangular parallelepiped. The hollow box 8 is mounted on the frame 9. The annular crawler 11 is formed with a horizontal portion 12 located below the spray head 4. The horizontal portion 12 is used to carry the waste lithium-ion batteries 111. When the first motor drives the annular crawler 11 to rotate, the horizontal portion 12 of the annular crawler 11 can drive the waste lithium-ion batteries 111 to move automatically. The annular crawler 11 is provided with a plurality of through holes penetrating the annular crawler 11. The plurality of through holes are extended along the length direction of the annular crawler 11. The conductive electrolyte sprayed from the spray head 4 flows back into the container 3 through the through holes.

[0040] The upper end of the frame 9 has two parallel support bars 13, which are roughly in the shape of straight bars. A plurality of rollers are rotatably arranged between the two support bars 13, and the plurality of rollers are arranged in the same plane. The two ends of the rollers are rotatably arranged with the support bars 13 via rolling bearings, respectively. The plurality of rollers are arranged along the length direction of the support bars 13. Preferably, the plurality of rollers are arranged at equal intervals along the length direction of the support bars 13, and the rollers support the horizontal portion 12 of the annular track 11 to prevent the horizontal portion 12 from bending and deforming downward and causing poor transportation of the waste lithium-ion batteries 111. The annular track 11 is sleeved on the outside of the plurality of rollers, and the first motor is used to drive the rollers to rotate. Preferably, the plurality of rollers are meshed via gears or via an annular chain. The annular track 11 is made of stainless steel material, which prevents the annular track 11 from being connected to the waste lithium-ion batteries 111 and causing a short circuit, and prevents the annular track 11 from rusting and being used poorly.

[0041] According to actual needs, the number of the spray heads 4 of the spray mechanism 2 can be multiple, and the spray directions of the conductive electrolytes sprayed by the multiple spray heads 4 are cross-arranged. In this way, during the use of the spray mechanism 2, the conductive electrolytes sprayed by the multiple spray heads 4 of the spray mechanism 2 are respectively sprayed to different parts of the waste lithium-ion batteries 111, ensuring that the waste lithium-ion batteries 111 are fully discharged and avoiding poor discharge due to different postures of the waste lithium-ion batteries 111 on the horizontal part 12 of the annular track 11.

[0042] The spray mechanism 2 also includes a first carrier 14 rotatably arranged in the hollow box 8, and a second motor 15 for driving the first carrier 14 to rotate. The spray head 4 is installed on the first carrier 14. Of course, multiple spray heads 4 can be installed on the first carrier 14. The second motor 15 drives the first carrier 14 to rotate, and the rotating first carrier 14 rotates with the spray head 4, thereby changing the spray direction of the conductive electrolyte sprayed by the spray head 4 to ensure that the waste lithium-ion battery 111 can be fully discharged.

[0043] Preferably, the rotation axis of the first carrier 14 is parallel to the moving direction of the waste lithium-ion batteries 111 transported by the conveying mechanism 1. A third motor 16 is also installed on the first carrier 14, and the output shaft of the third motor 16 is connected to the second carrier 17. The spray head 4 is installed on the second carrier 17. Of course, multiple spray heads 4 can be installed on the second carrier 17. The third motor 16 drives the spray head 4 to rotate via the second carrier 17. The rotation axis of the second carrier 17 is parallel to the moving direction of the waste lithium-ion batteries 111 transported by the conveying mechanism 1. The rotation axis of the first carrier 14 and the rotation axis of the second carrier 17 are cross-arranged. Preferably, the rotation axis of the first carrier 14 and the rotation axis of the second carrier 17 are perpendicularly arranged.

[0044] During the process of the spray head 4 spraying and discharging the used lithium-ion battery 111, the second motor 15 first drives the second carrier 17 to rotate left and right via the first carrier 14, and the second carrier 17 that rotates left and right drives the spray head 4 to rotate left and right to achieve left and right discharge of the used lithium-ion battery 111. Then the first carrier 14 stops rotating, and the third motor 16 drives the spray head 4 to rotate forward and backward via the second carrier 17 to achieve forward and backward discharge of the used lithium-ion battery 111, ensuring that the used lithium-ion battery 111 is fully discharged.

[0045] Embodiment 2

[0046] See also Figure 1 , Figure 2 and Figure 4 As shown, the spray mechanism 2 further includes a first electric cylinder 18, a third carrier 19 connected to the piston rod of the first electric cylinder 18, and a plurality of spray heads 4 are respectively mounted on the third carrier 19. The plurality of spray heads 4 on the third carrier 19 are in a rectangular array, and the first electric cylinder 18 drives the spray heads 4 to move via the third carrier 19. In actual use, the first electric cylinder 18 drives the third carrier 19 to move back and forth, and the third carrier 19 that moves back and forth drives the spray heads 4 to move back and forth. The conductive electrolyte sprayed by the spray heads 4 that move back and forth is respectively sprayed to different parts of the waste lithium-ion battery 111, so that the waste lithium-ion battery 111 is fully discharged.

[0047] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0048] Embodiment 3

[0049] See also Figure 1 , Figure 2 and Figure 5As shown, the spray mechanism 2 includes a plurality of support rods 21 arranged in parallel, the support rods 21 are roughly straight lines, each support rod 21 is connected to a transfer rod 22, the transfer rod 22 and the support rod 21 are arranged to intersect, preferably, the transfer rod 22 and the support rod 21 are arranged perpendicularly, all the support rods 21 are rotatably arranged on a common plate 23 via the transfer rod 22, and a slide groove 24 is arranged on the common plate 23, and the slide groove 24 is roughly straight.

[0050] The spray mechanism 2 also includes a second electric cylinder 25, and a rotating wheel body 26 is arranged on the piston rod of the second electric cylinder 25. The wheel body 26 is movably arranged in the slide groove 24. The second electric cylinder 25 drives the wheel body 26 to move. The movable wheel body 26 rolls in the slide groove 24 and drives the common plate 23 to move. The movable common plate drives multiple support rods 21 to swing via the transfer rod 22. Each support rod 21 is provided with multiple spray heads 4. The swinging support rod 21 drives the spray head 4 to swing, thereby achieving sufficient spraying of the waste lithium-ion battery 111 and achieving sufficient discharge of the waste lithium-ion battery 111. Preferably, the spraying directions of the conductive electrolyte sprayed by at least two spray heads 4 of the same support rod 21 are cross-arranged, so that at least two spray heads 4 of the same support rod 21 can spray to different parts of the used lithium-ion battery 111, avoiding spraying to the same part of the used lithium-ion battery 111 and causing poor discharge of the used lithium-ion battery 111, further helping to improve the discharge yield of the used lithium-ion battery 111.

[0051] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0052] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A discharge device for recycling waste lithium-ion batteries, characterized in that: The invention comprises a conveying mechanism and a spraying mechanism used in conjunction with the conveying mechanism, wherein the conveying mechanism is used to convey waste lithium-ion batteries from the outside to move; the spraying mechanism comprises a container, a liquid pump and a spray head, wherein the container is used to contain conductive electrolyte from the outside, the liquid pump is used to extract the conductive electrolyte in the container and spray the conductive electrolyte onto the waste lithium-ion batteries conveyed by the conveying mechanism through the spray head, the conductive electrolyte sprayed onto the waste lithium-ion batteries discharges the waste lithium-ion batteries, the conductive electrolyte sprayed onto the waste lithium-ion batteries conveyed by the spray head flows back to the container; the conductive electrolyte sprayed by the spray head flows back to the container after being filtered by a filter; the conveying mechanism comprises a frame, an annular crawler rotatably arranged on the frame, and a first motor used to drive the annular crawler to rotate, the annular crawler is formed with a horizontal portion located below the spray head, the horizontal portion is used to carry the waste lithium-ion batteries, the annular crawler is provided with a plurality of through holes penetrating the annular crawler, the plurality of through holes are extended along the length direction of the annular crawler, and the conductive electrolyte sprayed by the spray head flows back to the container via the through holes.

2. The discharge device for recycling waste lithium-ion batteries according to claim 1, characterized in that: The spray mechanism also includes a hollow box, the conveying mechanism passes through the hollow box, the spray head is located in the hollow box, the container is located below the conveying mechanism, and the conductive electrolyte sprayed by the spray head sprays the waste lithium-ion batteries input into the hollow box by the conveying mechanism; the hollow box is provided with an exhaust hole located above the spray head, and the exhaust hole is connected to an external exhaust fan or an external vacuum generating device.

3. The discharge device for recycling waste lithium-ion batteries according to claim 1, characterized in that: The frame has two support bars arranged in parallel, and multiple rollers are rotatably arranged between the two support bars. The multiple rollers are arranged along the length direction of the support bars, and the annular track is set on the outside of the multiple rollers. The first motor is used to drive the rollers to rotate, and the annular track is made of stainless steel.

4. The discharge device for recycling waste lithium-ion batteries according to claim 1, characterized in that: There are multiple spray heads, and the spray directions of the conductive electrolytes sprayed by the multiple spray heads are cross-arranged, and the conductive electrolytes sprayed by the multiple spray heads are sprayed to different parts of the waste lithium-ion batteries.

5. The discharge device for recycling waste lithium-ion batteries according to claim 1, characterized in that: The spray mechanism also includes a rotatably arranged first carrier, a second motor for driving the first carrier to rotate, a spray head is arranged on the first carrier, and the second motor drives the spray head to rotate via the first carrier to change the spray direction of the conductive electrolyte sprayed from the spray head.

6. The discharge device for recycling waste lithium-ion batteries according to claim 5, characterized in that: The rotation axis of the first carrier is parallel to the moving direction of the waste lithium-ion batteries transported by the conveying mechanism.

7. The discharge device for recycling waste lithium-ion batteries according to claim 6, characterized in that: The first carrier is equipped with a third motor, the output shaft of the third motor is connected to the second carrier, the spray head is arranged on the second carrier, the third motor drives the spray head to rotate via the second carrier, the rotation axis of the second carrier is parallel to the moving direction of the waste lithium-ion batteries transported by the conveying mechanism, and the rotation axis of the first carrier is cross-arranged with the rotation axis of the second carrier.

8. The discharge device for recycling waste lithium-ion batteries according to claim 1, characterized in that: The spray mechanism also includes a first electric cylinder and a third carrier connected to the piston rod of the first electric cylinder. There are multiple spray heads, and the multiple spray heads are respectively arranged on the third carrier. The multiple spray heads on the third carrier are in a rectangular array. The first electric cylinder drives the spray heads to move via the third carrier.

9. The discharge device for recycling waste lithium-ion batteries according to claim 1, characterized in that: The spray mechanism includes a plurality of support rods arranged in parallel, each support rod is connected to a transfer rod, all the support rods are rotatably arranged on a common plate via the transfer rod, and the common plate is provided with a slide groove; the spray mechanism also includes a second electric cylinder, the piston rod of the second electric cylinder is provided with a rotating wheel body, the wheel body is movably arranged in the slide groove, the second electric cylinder drives the plurality of support rods to swing, each support rod is provided with a plurality of spray heads, and the spray directions of the conductive electrolyte sprayed by at least two spray heads of the same support rod are cross-arranged.

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