A through-type copper foil cleaning device

Abstract

This invention discloses a through-type copper foil cleaning device, including a conveying mechanism, a cleaning tank, a chain plate pressing mechanism, an ultrasonic cleaning mechanism, and a drying mechanism. The conveying mechanism includes a conveying housing, a driving sprocket, a driven sprocket, a sprocket drive component, a chain, and several fixing bars. The cleaning tank is located below the chain and has a cleaning chamber open at the top. The chain plate pressing mechanism is used to press down part of the chain and part of the fixing bars into the cleaning chamber. The ultrasonic cleaning mechanism is used to emit ultrasonic waves towards the fixing bars in the cleaning chamber. The drying mechanism is used to dry the material on the fixing bars after they leave the cleaning chamber. The beneficial effect of this invention is that battery electrode fragments only need to be unloaded onto the assembly formed by the fixing bars, allowing the battery electrode fragments to follow the rotation of the chain to sequentially reach the positions of the cleaning tank and the drying mechanism, thereby undergoing ultrasonic cleaning and drying respectively. After drying, the copper foil is automatically unloaded, greatly improving the copper foil recycling efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery electrode recycling technology, and in particular to a through-type copper foil cleaning device. Background Technology

[0002] The main component of battery electrodes is copper foil coated with carbon powder. During battery electrode recycling, the carbon powder is difficult to separate from the copper foil, making it difficult to obtain high-purity copper foil, which has significant economic value. Therefore, how to effectively separate the carbon powder from the copper foil of battery electrodes to obtain high-purity copper foil is a pressing technical challenge in this field.

[0003] Currently, there is a method for recycling copper foil. Battery electrode fragments are loaded into a basket, and then the basket is placed in an ultrasonic cleaning tank for ultrasonic cleaning to separate the carbon powder adhering to the surface of the copper foil. After cleaning, the basket is transferred to a drying tank for drying. However, the basket transfer is currently mainly done manually, which has low efficiency. In addition, it requires manual loading of battery electrode fragments into the basket and manual removal of the dried copper foil fragments from the basket, which is very inefficient. Summary of the Invention

[0004] In view of this, it is necessary to provide a through-type copper foil cleaning device to solve the technical problem of low production efficiency when using manual copper foil cleaning.

[0005] To achieve the above objectives, the present invention provides a through-type copper foil cleaning device, comprising:

[0006] A conveying mechanism includes a conveying housing, a driving sprocket, a driven sprocket, a sprocket drive, a chain, and several fixed bars. The driving sprocket and the driven sprocket are rotatably mounted on the conveying housing. The sprocket drive is connected to the driving sprocket and is used to drive the driving sprocket to rotate. The chain is closed, with its two ends wrapped around the driving sprocket and the driven sprocket, respectively. Each of the fixed bars is fixed to the chain, and two adjacent fixed bars are hinged together.

[0007] A cleaning box is disposed below the chain and has a cleaning chamber open at the top.

[0008] A chain plate pressing mechanism is used to press down a portion of the chain and a portion of the fixing bar into the cleaning chamber.

[0009] An ultrasonic cleaning mechanism, wherein the ultrasonic cleaning mechanism is used to emit ultrasonic waves toward a fixed strip within the cleaning chamber; and...

[0010] A drying mechanism is used to dry the material on the fixed strip after it leaves the cleaning chamber.

[0011] In some embodiments, the chain pressing mechanism includes a first support sprocket, a second support sprocket, and a pressing plate. The first support sprocket and the second support sprocket are rotatably mounted on the conveying housing. The pressing plate is fixed to the conveying housing. The height of the pressing plate is lower than the height of the first support sprocket and the second support sprocket. The pressing plate is located between the first support sprocket and the second support sprocket. After the chain meshes with the upper end of the first support sprocket, it abuts against the lower end face of the pressing plate and then meshes with the upper end of the second support sprocket.

[0012] In some embodiments, the lower pressure plate is fixed to the conveyor housing via a connecting rod, and the two ends of the lower pressure plate are formed with raised portions, the gap between the raised portions and the chain gradually decreasing with the direction of chain movement.

[0013] In some embodiments, a through groove is provided on the lower end surface of the pressure plate, and the through groove is located above the fixing strip.

[0014] In some embodiments, the number of chains is two, and guide grooves are provided on both sides of the lower end face of the pressure plate for the two chains to pass through.

[0015] In some embodiments, the ultrasonic cleaning mechanism includes a vibrating plate and a plurality of ultrasonic generators. The vibrating plate is fixed inside the cleaning chamber and located below the lower pressure plate, and each of the ultrasonic generators is fixed on the vibrating plate.

[0016] In some embodiments, the drying mechanism includes a hood and a hot air blower, the hood being mounted downwards above the fixing strip, and the outlet of the hot air blower being connected to the inlet of the hood.

[0017] In some embodiments, the lower end of the cleaning tank is provided with a drain outlet communicating with the cleaning chamber. The through-type copper foil cleaning device further includes a reuse mechanism, which includes a filter element, a filter press, a buffer tank, and a circulating pump. The filter element is disposed in the drain outlet. The inlet of the filter press is connected to the drain outlet, the outlet of the filter press is connected to the buffer tank, the inlet of the circulating pump is connected to the buffer tank, and the outlet of the circulating pump is connected to the cleaning chamber.

[0018] In some embodiments, the filter element includes a filter housing, a draw plate, and a screen. A closed filter chamber is formed inside the filter housing. An inlet communicating with the drain outlet is provided on the upper end face of the filter housing. An outlet communicating with the inlet of the filter press is provided on one side of the filter housing. An operation port is provided on the other side of the filter housing. The draw plate is detachably fixed to the operation port. The screen is fixed to the draw plate. When the draw plate is fixed to the operation port, the screen is located between the inlet and the outlet.

[0019] In some embodiments, the reuse mechanism further includes a water supply pipe and a nozzle, one end of the water supply pipe being connected to the inlet of the nozzle and the other end of the water supply pipe being connected to the outlet of the circulating pump, and the outlet of the nozzle being disposed toward the cleaning chamber.

[0020] Compared with the prior art, the beneficial effects of the technical solution proposed in this invention are as follows: During use, battery electrode fragments obtained after crushing the battery electrode sheets are unloaded onto an assembly composed of fixing bars. Simultaneously, the drive sprocket is driven to rotate via a sprocket drive component, thereby rotating the chain and each fixing bar. When the fixing bars covered with battery electrode fragments enter the cleaning chamber, the ultrasonic cleaning mechanism emits ultrasonic waves towards the fixing bars within the cleaning chamber, thus ultrasonically cleaning the battery electrode fragments on them. This causes the carbon powder on the copper foil surface to detach, and the detached carbon powder falls through the sieve holes on the fixing bars into the cleaning chamber. At the bottom, the copper foil remains on the fixing strip. Then, the fixing strip leaves the cleaning tank and reaches the drying mechanism. The drying mechanism dries the copper foil on the fixing strip. After drying, the copper foil moves with the fixing strip to the discharge end and automatically falls into the collection device set at the discharge end. Thus, with this device, battery electrode fragments only need to be unloaded onto the assembly formed by the fixing strip, and the battery electrode fragments will follow the rotation of the chain to reach the cleaning tank and the drying mechanism in sequence, so as to perform ultrasonic cleaning and drying respectively. After drying, the copper foil is automatically discharged, which greatly improves the copper foil recycling efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an embodiment of the through-type copper foil cleaning device provided by the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of an ultrasonic cleaning mechanism;

[0023] Figure 3 yes Figure 2 Sectional view of section AA;

[0024] Figure 4 yes Figure 2 A schematic diagram of the multiplexing mechanism in the diagram;

[0025] Figure 5 yes Figure 5 A schematic diagram of the filter element in the diagram;

[0026] In the diagram: 1-Conveying mechanism, 11-Conveying housing, 12-Drive sprocket, 13-Driven sprocket, 14-Sprocket drive component, 15-Chain, 16-Fixing bar, 2-Cleaning tank, 21-Drain outlet, 3-Chain plate pressing mechanism, 31-First support sprocket, 32-Second support sprocket, 33-Pressing plate, 331-Raised part, 332-Pass through groove, 34-Connecting rod, 4-Ultrasonic cleaning mechanism, 41-Vibrating plate, 42-Ultrasonic generator, 5-Drying mechanism, 51-Fan hood, 52-Hot air blower, 6-Reuse mechanism, 61-Filter element, 611-Filter housing, 6111-Inlet, 6112-Outlet, 6113-Operating port, 612-Drawer plate, 613-Screen, 62-Filter press, 63-Buffer tank, 64-Circulating pump, 65-Water supply pipe, 66-Sprayer head. Detailed Implementation

[0027] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0028] Please refer to Figures 1-5 The present invention provides a through-type copper foil cleaning device, including a conveying mechanism 1, a cleaning box 2, a chain plate pressing mechanism 3, an ultrasonic cleaning mechanism 4, and a drying mechanism 5.

[0029] The conveying mechanism 1 includes a conveying housing 11, a driving sprocket 12, a driven sprocket 13, a sprocket drive 14, a chain 15, and several fixing bars 16. The driving sprocket 12 and the driven sprocket 13 are rotatably mounted on the conveying housing 11. The sprocket drive 14 is connected to the driving sprocket 12 and is used to drive the driving sprocket 12 to rotate. The chain 15 is closed, with its two ends wrapped around the driving sprocket 12 and the driven sprocket 13, respectively. Each fixing bar 16 is fixed to a link of the chain 15, and two adjacent fixing bars 16 are hinged together, so that the fixing bars 16 can form a continuous fixing bar assembly. The upper surface of this fixing bar assembly is used to place battery electrode fragments (i.e., copper foil fragments). Each fixing strip 16 is densely covered with sieve holes, each with a diameter of 1 mm, allowing carbon powder and a small number of small copper foil fragments that have fallen off the copper foil to pass through. The majority of the copper foil is larger than 1 mm, so it can be retained on the fixing strip 16.

[0030] The cleaning box 2 is located below the chain 15, and the cleaning box 2 has a cleaning chamber open at the top. In this embodiment, there are two cleaning boxes 2. The first cleaning box performs preliminary cleaning, and the second cleaning box performs further cleaning to ensure the cleaning effect.

[0031] The chain plate pressing mechanism 3 is used to press down part of the chain 15 and part of the fixing bar 16 into the cleaning chamber, so that the copper foil on the fixing bar 16 enters the cleaning box 2.

[0032] The ultrasonic cleaning mechanism 4 is used to emit ultrasonic waves toward the fixed strip 16 inside the cleaning chamber;

[0033] The drying mechanism 5 is used to dry the material on the fixing strip 16 that has left the cleaning chamber.

[0034] In use, the battery electrode fragments obtained after breaking the battery electrode sheets are unloaded onto the assembly formed by the fixing bars 16. Simultaneously, the drive sprocket 12 is driven to rotate via the sprocket drive 14, thereby rotating the chain 15 and each fixing bar 16. When the fixing bars 16 covered with battery electrode fragments enter the cleaning chamber 2, the ultrasonic cleaning mechanism 4 emits ultrasonic waves towards the fixing bars 16 in the cleaning chamber, thus ultrasonically cleaning the battery electrode fragments on them. This causes the carbon powder on the copper foil surface to detach. The detached carbon powder falls through the sieve holes on the fixing bars 16 to the bottom of the cleaning chamber 2, while the copper foil remains on the fixing bars. After the fixed strip 16 leaves the cleaning tank 2, it reaches the position of the drying mechanism 5. The drying mechanism 5 dries the copper foil on the fixed strip 16. After drying, the copper foil moves with the fixed strip 16 to the discharge end and automatically falls into the collection device set at the discharge end. Thus, with this device, the battery electrode fragments only need to be unloaded onto the assembly formed by the fixed strip 16, and the battery electrode fragments will follow the rotation of the chain 15 to reach the positions of the cleaning tank 2 and the drying mechanism 5 in sequence, so as to perform ultrasonic cleaning and drying respectively. After drying, the copper foil is automatically discharged, which greatly improves the copper foil recycling efficiency.

[0035] To understand the specific function of the chain plate pressing mechanism 3, please refer to [reference needed]. Figures 1-3In a preferred embodiment, the chain pressing mechanism 3 includes a first support sprocket 31, a second support sprocket 32, and a pressing plate 33. The first support sprocket 31 and the second support sprocket 32 ​​are rotatably mounted on the conveying housing 11. The pressing plate 33 is fixed to the conveying housing 11. The height of the pressing plate 33 is lower than the height of the first support sprocket 31 and the second support sprocket 32. The pressing plate 33 is located between the first support sprocket 31 and the second support sprocket 32. After the chain 15 engages with the upper end of the first support sprocket 31, it abuts against the lower end face of the pressing plate 33, and then engages with the upper end of the second support sprocket 32. In this embodiment, because the height of the pressing plate 33 is lower than the height of the first support sprocket 31 and the second support sprocket 32, the pressing plate 33 can press the chain 15 into the cleaning tank 2. Therefore, the fixing strip 16 also enters the cleaning tank 2.

[0036] To prevent interference between the end of chain 15 and the lower pressure plate 33, please refer to... Figures 1-3 In a preferred embodiment, the lower pressure plate 33 is fixed to the conveying housing 11 via a connecting rod 34. The two ends of the lower pressure plate 33 are formed with raised portions 331. The gap between the raised portions 331 and the chain 15 gradually decreases with the moving direction of the chain 15. By setting the raised portions 331, a certain gap is made between the end of the lower pressure plate 33 and the chain 15 to prevent the chain 15 from getting stuck at the end of the lower pressure plate 33.

[0037] For easier passage of copper foil, please refer to... Figures 1-3 In a preferred embodiment, a through groove 332 is provided on the lower end surface of the lower pressure plate 33. The through groove 332 is located above the fixing strip 16. By providing the through groove 332, copper foil can pass through, thereby preventing the copper foil from contacting the lower pressure plate 33.

[0038] To laterally limit the movement of chain 15, please refer to... Figures 1-3 In a preferred embodiment, there are two chains 15. Guide grooves are provided on both sides of the lower end face of the pressure plate 33. The guide grooves are used for the two chains 15 to pass through, so that the movement of the chains 15 can be laterally limited by the guide grooves.

[0039] To understand the specific functions of the ultrasonic cleaning mechanism 4, please refer to [reference needed]. Figures 1-3 In a preferred embodiment, the ultrasonic cleaning mechanism 4 includes a vibrating plate 41 and a plurality of ultrasonic generators 42. The vibrating plate 41 is fixed inside the cleaning chamber 2 and located below the lower pressure plate 33, and each of the ultrasonic generators 42 is fixed on the vibrating plate 41.

[0040] To understand the specific functions of drying mechanism 5, please refer to [reference needed]. Figure 1 In a preferred embodiment, the drying mechanism 5 includes a hood 51 and a hot air blower 52. The hood 51 is mounted downwards above the fixing strip 16, and the outlet of the hot air blower 52 is connected to the inlet of the hood 51.

[0041] To achieve water reuse, please refer to... Figure 1 and Figure 4 In a preferred embodiment, the lower end of the cleaning tank 2 is provided with a drain outlet 21 communicating with the cleaning chamber. The through-type copper foil cleaning device further includes a reuse mechanism 6, which includes a filter element 61, a filter press 62, a buffer tank 63, and a circulation pump 64. The filter element 61 is disposed in the drain outlet 21. The inlet of the filter press 62 is connected to the drain outlet 21, the outlet of the filter press 62 is connected to the buffer tank 63, the inlet of the circulation pump 64 is connected to the buffer tank 63, and the outlet of the circulation pump 64 is connected to the cleaning chamber. During use, the carbon powder in the cleaning tank 2 is discharged from the drain outlet 21. After being discharged, it is initially filtered by the filter element 61 to remove small copper foil with a size of less than 1 mm. The filtered water enters the filter press 62, which presses the carbon powder into a graphite filter cake. The clean water discharged from the filter press 62 is returned to the cleaning tank 2 by the circulation pump 64 to realize the recycling of water. In this embodiment, the function of the filter element 61 is to filter a small portion of small copper foil with a size of less than 1 mm. The small copper foil obtained after filtration is subsequently rinsed, dried and recycled for later use.

[0042] To understand the specific functions of filter element 61, please refer to... Figure 1 , Figure 4 and Figure 5 In a preferred embodiment, the filter element 61 includes a filter housing 611, a draw plate 612, and a screen 613. The filter housing 611 forms a closed filter chamber. The upper end face of the filter housing 611 has an inlet 6111 communicating with the drain outlet 21. One side of the filter housing 611 has an outlet 6112 communicating with the inlet of the filter press 62. The other side of the filter housing 611 has an operation port 6113. The draw plate 612 is detachably fixed to the operation port 6113. The screen 613 is fixed to the draw plate 612. When the draw plate 612 is fixed to the operation port 6113, the screen 613 is located between the inlet 6111 and the outlet 6112. By setting the draw plate 612, the screen 613 can be easily pulled out, thereby recovering the fine copper foil on the screen 613.

[0043] To specifically achieve the connection between the outlet of the circulating pump 64 and the cleaning chamber, please refer to... Figure 1 and Figure 4In a preferred embodiment, the reuse mechanism 6 further includes a water supply pipe 65 and a nozzle 66. One end of the water supply pipe 65 is connected to the inlet of the nozzle 66, and the other end of the water supply pipe 65 is connected to the outlet of the circulation pump 64. The outlet of the nozzle 66 is arranged facing the cleaning chamber.

[0044] To better understand this invention, the following is combined with... Figures 1-5 The working process of the through-type copper foil cleaning device provided by the present invention will be described in detail below: In use, the battery electrode fragments obtained after the battery electrode sheets are broken are unloaded onto the assembly formed by the fixing bars 16. At the same time, the drive sprocket 12 is driven to rotate by the sprocket drive component 14, thereby driving the chain 15 and each fixing bar 16 to rotate. When the fixing bars 16 covered with battery electrode fragments enter the cleaning chamber 2, the ultrasonic cleaning mechanism 4 emits ultrasonic waves toward the fixing bars 16 in the cleaning chamber, thereby ultrasonically cleaning the battery electrode fragments on them, causing the carbon powder on the surface of the copper foil to fall off. The detached carbon powder falls from the sieve holes on the fixing bars 16 into the cleaning chamber. The copper foil is placed at the bottom of the washing tank 2 and then left by the fixing strip 16. The fixing strip 16 then moves to the position of the drying mechanism 5, where the copper foil on the fixing strip 16 is dried. After drying, the copper foil moves with the fixing strip 16 to the discharge end and automatically falls into the collection device set at the discharge end. Thus, with this device, battery electrode fragments only need to be unloaded onto the assembly formed by the fixing strip 16, and the battery electrode fragments will follow the rotation of the chain 15 to reach the positions of the washing tank 2 and the drying mechanism 5 in sequence, so as to be ultrasonically cleaned and dried respectively. After drying, the copper foil is automatically discharged, which greatly improves the copper foil recycling efficiency.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A through-type copper foil cleaning device, characterized in that, include: A conveying mechanism includes a conveying housing, a driving sprocket, a driven sprocket, a sprocket drive, a chain, and several fixed bars. The driving sprocket and the driven sprocket are rotatably mounted on the conveying housing. The sprocket drive is connected to the driving sprocket and is used to drive the driving sprocket to rotate. The chain is closed, with its two ends wrapped around the driving sprocket and the driven sprocket, respectively. Each of the fixed bars is fixed to the chain, and two adjacent fixed bars are hinged together. A cleaning box is disposed below the chain and has a cleaning chamber open at the top. A chain plate pressing mechanism is used to press down a portion of the chain and a portion of the fixing bar into the cleaning chamber. An ultrasonic cleaning mechanism, wherein the ultrasonic cleaning mechanism is used to emit ultrasonic waves toward a fixed strip inside the cleaning chamber; as well as, A drying mechanism for drying the material on the fixed strip after it leaves the cleaning chamber; The chain plate pressing mechanism includes a first support sprocket, a second support sprocket, and a pressing plate. The first support sprocket and the second support sprocket are rotatably mounted on the conveying housing. The pressing plate is fixed to the conveying housing. The height of the pressing plate is lower than the height of the first support sprocket and the second support sprocket. The pressing plate is located between the first support sprocket and the second support sprocket. After the chain meshes with the upper end of the first support sprocket, it abuts against the lower end face of the pressing plate and then meshes with the upper end of the second support sprocket. The lower pressure plate is fixed to the conveyor housing via a connecting rod. Both ends of the lower pressure plate have raised portions. The gap between the raised portions and the chain gradually decreases with the direction of chain movement. The lower end of the cleaning tank is provided with a drain outlet communicating with the cleaning chamber. The through-type copper foil cleaning device also includes a reuse mechanism, which includes a filter element, a filter press, a buffer tank, and a circulating pump. The filter element is disposed in the drain outlet. The inlet of the filter press is connected to the drain outlet, the outlet of the filter press is connected to the buffer tank, the inlet of the circulating pump is connected to the buffer tank, and the outlet of the circulating pump is connected to the cleaning chamber. The filter element includes a filter housing, a draw plate, and a screen. A closed filter chamber is formed inside the filter housing. An inlet communicating with the drain outlet is opened on the upper end face of the filter housing. An outlet communicating with the inlet of the filter press is opened on one side of the filter housing. An operation port is opened on the other side of the filter housing. The draw plate is detachably fixed to the operation port. The screen is fixed to the draw plate. When the draw plate is fixed to the operation port, the screen is located between the inlet and the outlet.

2. The through-type copper foil cleaning device according to claim 1, characterized in that, A through groove is provided on the lower end surface of the pressure plate, and the through groove is located above the fixing strip.

3. The through-type copper foil cleaning device according to claim 1, characterized in that, The number of chains is two, and guide grooves are provided on both sides of the lower end face of the pressure plate for the two chains to pass through.

4. The through-type copper foil cleaning device according to claim 1, characterized in that, The ultrasonic cleaning mechanism includes a vibrating plate and several ultrasonic generators. The vibrating plate is fixed inside the cleaning chamber and located below the lower pressure plate. Each of the ultrasonic generators is fixed on the vibrating plate.

5. The through-type copper foil cleaning device according to claim 1, characterized in that, The drying mechanism includes a hood and a hot air blower. The hood is mounted downwards above the fixing strip, and the outlet of the hot air blower is connected to the inlet of the hood.

6. The through-type copper foil cleaning device according to claim 1, characterized in that, The reuse mechanism also includes a water supply pipe and a nozzle. One end of the water supply pipe is connected to the inlet of the nozzle, and the other end of the water supply pipe is connected to the outlet of the circulating pump. The outlet of the nozzle is positioned facing the cleaning chamber.

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