An extraction tank for battery separator production

Abstract

The application discloses a kind of extraction tank for battery separator production, it is related to lithium battery separator production field, including pedestal frame, the extraction box of pedestal frame top, centrifugal device in extraction box one side, material guiding device in extraction box two sides;Extraction box includes the closure cover of lid top, the wire part of extraction box top and inside both ends responsible for guiding battery separator to advance, the material scraping part of extraction box inside responsible for scratching battery separator coating;Centrifugal device includes centrifugal tank in extraction box one side, the first support of centrifugal tank top, the driving part of first support top, the second support of extraction box top, the control component of second support top;Material guiding device includes liquid inlet component in extraction box side away from centrifugal tank, recovery component in extraction box side away from extraction box, discharge component below recovery component;The application is a kind of extraction tank for battery separator production with high work efficiency, and wire conveniently.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of lithium battery diaphragm production, and specifically relates to an extraction tank for battery diaphragm production. Background Art

[0002] A lithium battery separator extraction cell is a device specifically designed to extract valuable chemicals, such as lithium, nickel, and cobalt, from lithium-ion batteries. These chemicals can then be reused to create new batteries or electronic devices. In batteries, metallic elements such as lithium, nickel, and cobalt are stored in tiny cells embedded in a solid electrolyte. When the battery is charged, these metallic elements dissolve into the electrolyte through electrolysis and can be separated from it by a filter. This process is commonly referred to as "extraction." The lithium battery separator extraction cell is a crucial piece of equipment, helping to recover and reuse valuable materials from batteries, thereby reducing environmental impact and lowering battery costs. Because lithium battery separators are long, strip-shaped components, the extraction material is coated on one side of the separator, significantly different from traditional liquid extraction processes. Therefore, a specialized cell is required to extract the chemicals from the battery. However, existing extraction cells mostly use large, rectangular, monolithic cells, which consume a lot of extraction fluid and electricity upon startup. Furthermore, the roller-driven separator extraction method used for extraction results in suboptimal extraction results and can easily cause the separator to deviate.

[0003] According to the application number CN202211199418.0, a new type of lithium battery diaphragm extraction device is provided, which includes an extraction tank and a dryer. The inlet and outlet ends of the extraction tank are provided with guide rollers, and the drying tank is provided with multiple drying rollers that reciprocate up and down alternately; a diaphragm clamping transmission mechanism is provided inside the tank body of the extraction tank, and the diaphragm clamping transmission mechanism includes two chain clamp tracks. The chain clamp tracks are located below the liquid surface of the extraction liquid. Chain clamps that can be opened and closed to clamp the diaphragm are sliding on the two chain clamp tracks. The chain clamps are evenly distributed on each chain clamp track, and the chain clamps on each chain clamp track move 360 ​​degrees around the chain clamp track. When moving to the front end of the chain clamp track, the chain clamp closes and clamps the diaphragm. When moving to the tail end of the chain clamp track, the chain clamp opens and releases the diaphragm.

[0004] The above patent document uses a chain clamp transmission method, which can greatly improve the diaphragm extraction efficiency, shorten the extraction time, and reduce the extraction solvent consumption and the length of the device tank compared to the existing roller transmission diaphragm extraction method. However, it cannot solve the serious problem of material and energy consumption required for extraction. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an extraction tank for battery separator production to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An extraction tank for producing battery diaphragms, comprising a base frame, an extraction box arranged on the top of the base frame, a centrifugal device arranged on one side of the extraction box, and material guide devices arranged on both sides of the extraction box;

[0008] The extraction box includes a closing cover provided on the top, a routing component provided above and at both ends of the extraction box to guide the battery diaphragm, and a scraping component provided inside the extraction box to scrape the coating layer of the battery diaphragm;

[0009] The centrifugal device includes a centrifugal tank provided on one side of the extraction box, a first bracket provided on the top of the centrifugal tank, a driving component provided on the top of the first bracket, a second bracket provided on the top of the extraction box, and a regulating component provided on the top of the second bracket;

[0010] The material guiding device includes a liquid inlet component provided on a side of the extraction box away from the centrifugal tank, a recovery component provided on a side of the extraction box away from the extraction box, and a material discharge component provided below the recovery component.

[0011] Preferably, the closing cover includes a first C-shaped groove at both ends, a second C-shaped groove at the top of the extraction box that cooperates with the first C-shaped groove to form a complete groove shape, handles at both ends of the top of the closing cover, and leak-proof stickers stuck to the four outer sides of the closing cover. In this preferred embodiment, the first C-shaped groove cooperates with the second C-shaped groove to serve as a through groove when diaphragm extraction is performed on the closing cover. When the closing cover is removed, the diaphragm can be easily replaced or the wiring can be adjusted. The entire closing cover can be lifted by the handle to prevent the extraction box from being bumped. The leak-proof sticker can better seal the gap between the top of the extraction box and the closing cover to prevent volatile corrosion.

[0012] Preferably, the wiring component includes a first support frame provided at both ends of the top of the extraction box, a first roller provided on the first support frame, a second support frame provided at both ends inside the extraction box, and a second roller provided on the second support frame. In this preferred embodiment, the moving direction of the diaphragm is adjusted by the position setting of the first roller and the second roller to ensure that the diaphragm is continuously extracted according to the designed extraction box structure, wherein the second support frame also serves as a limiting element for the diaphragm in the extraction box when the diaphragm moves.

[0013] Preferably, the scraping component includes a plurality of partitions arranged at equal intervals laterally inside the extraction box, a through groove provided in the middle of the partition, a strip telescopic cylinder provided above the inside of the partition, a scratch plate provided at the execution end of the strip telescopic cylinder, and a third roller rotatably provided below the inside of the partition. In this preferred embodiment, the interior of the extraction box is laterally divided into a plurality of working spaces by a plurality of partitions, and the strip telescopic cylinder is used to alternately drive the scratch plate to scratch the coating layer on the diaphragm to determine which working space starts to work. The third roller is mainly used to facilitate the normal operation of the diaphragm to avoid tearing and other faults when passing through the through groove.

[0014] Preferably, the centrifugal tank includes a first electronic valve arranged on one side of the extraction box, a first connecting pipe connecting the first electronic valve and the top of the centrifugal tank, two annular guide rails arranged at the upper and lower ends of the centrifugal tank, and an annular ion screen clamped in the middle of the two annular guide rails. In this preferred embodiment, the interior of the centrifugal tank is divided into a material receiving area and a waste area by the annular ion screen, and the annular ion screen is supported in a rotatable state by the two annular guide rails at the upper and lower ends of the centrifugal tank to facilitate centrifugal driving of the centrifugal tank by the driving element.

[0015] Preferably, the driving component includes a plurality of servo motors corresponding to the positions of the centrifuge tanks arranged on the top of the first bracket, a rotating shaft arranged at the execution end of the servo motor and passing through the inside of the centrifuge tank, and multiple stirring plates connected to the side of the rotating shaft and the inner side of the annular ion sieve. In this preferred embodiment, the centrifugal elements inside the centrifuge tank are driven by a precisely controllable servo motor, which facilitates better control of the centrifugal process. The multiple stirring plates inside the annular ion sieve are connected through the side of the rotating shaft. When the ion solution in the centrifuge tank is stirred, the ions accumulated in the annular ion sieve can also be centrifuged, so that they can be separated from the annular ion sieve faster, thereby preventing its performance from being weakened due to blockage.

[0016] Preferably, the control component includes a central control machine arranged on the top of the second bracket, a data display screen arranged on one side of the central control machine, two ionization plates with opposite polarities arranged on both sides of the inside of the extraction box, and an ion detector arranged at the bottom end of the side of the centrifuge tank. In this preferred embodiment, the operation of the entire device is controlled by the central control machine, the ion concentration of each area and the extraction working status are displayed on the data display screen, the ion concentration in the centrifuge tank is monitored by the ion detector, and the electrical signal is sent to the central control machine for working status adjustment.

[0017] Preferably, the liquid inlet component includes a plurality of liquid storage tanks arranged below the base frame, a first connecting pipe connecting the outer bottom of the plurality of liquid storage tanks, a second connecting pipe arranged at the top of the extraction box away from the centrifugal tank, an input end connected to the middle of the first connecting pipe, and an output end connected to a suction pump at the middle of the second connecting pipe. In this preferred embodiment, the extraction liquid required in the extraction process is pre-stored in the plurality of liquid storage tanks for work use, and the extraction liquid inside the liquid storage tank is transported to the extraction box as much as possible through the suction pump and the first connecting pipe and the second connecting pipe to replenish the extraction liquid lost during the extraction process.

[0018] Preferably, the recycling component includes a filter box arranged below the base frame, a second electronic valve arranged at the bottom outside the centrifuge tank, and a second connecting pipe connecting the filter box near the top of one side of the centrifuge tank and the second electronic valve. In this preferred embodiment, the filter box collects unnecessary waste after extraction in the centrifuge tank, and can be recycled or discharged after basic filtration and neutralization.

[0019] Preferably, the discharge component includes a third electronic valve located at the bottom of the centrifuge tank, a discharge pipe connecting all of the third electronic valves, and a collection tank connected to the discharge end of the discharge pipe at the top. In this preferred embodiment, the collection tank collects the ion solution required after extraction and can be reused after industrial conversion.

[0020] In summary, the present invention mainly has the following beneficial effects:

[0021] In this embodiment, by adopting a separate sealing cover structure, it is possible to easily replace or install a new lithium battery separator before the extraction process begins, while preventing the extraction liquid from volatilizing, causing material waste and polluting the working environment.

[0022] By installing partitions at equal intervals in the extraction box, the extraction process can be carried out in zones. By controlling the scratch plates inside the partitions, the coating layer of the lithium battery diaphragm can be intermittently scratched to the designated partitioned space for the extraction process, thereby achieving the effect of extracting the coating layers at different positions of the lithium battery diaphragm in different extraction spaces respectively, and obtaining the most efficient extraction effect without affecting the extraction process at the same time.

[0023] Through the structural design of the centrifuge tank, the required ions and the unnecessary ions are separated and collected separately, which can facilitate the entry of new extraction liquid into the system for use, prevent the extraction effect from deteriorating due to the deterioration of the extraction liquid quality during the working process, and also facilitate the recycling and treatment of waste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an axonometric view of the overall device of the present invention;

[0025] Figure 2 It is a partial isometric view of the device of the present invention;

[0026] Figure 3 It is an exploded axonometric view of the extraction box of the present invention;

[0027] Figure 4 A cross-sectional view of a separator element of the present invention

[0028] Figure 5 It is a partial isometric view of the device of the present invention;

[0029] Figure 6 This is an exploded axonometric view of the centrifuge tank of the present invention.

[0030] Description of the drawings: 10, base frame; 20, extraction box; 30, centrifugal device; 40, material guiding device; 21, closing cover; 22, routing component; 23, scraping component; 31, centrifugal tank; 32, first bracket; 33, driving component; 34, second bracket; 35, regulating component; 41, liquid inlet component; 42, recovery component; 43, material discharge component; 211, first C-shaped groove; 212, second C-shaped groove; 213, handle; 214, leak-proof sticker; 221, first support frame; 222, first roller; 223, second support frame; 224, second roller; 231, partition; 232, through groove; 233 , bar-shaped telescopic cylinder; 234, scratch plate; 235, third roller; 311, first electronic valve; 312, first connecting pipe; 313, annular guide rail; 314, annular ion screen; 331, servo motor; 332, rotating shaft; 333, stirring plate; 351, central control machine; 352, data display screen; 353, ionization plate; 354, ion detector; 411, liquid storage tank; 412, first connecting pipe; 413, second connecting pipe; 414, suction pump; 421, filter box; 422, second electronic valve; 423, second connecting pipe; 431, third electronic valve; 432, discharge pipe; 433, collection tank. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0032] The following describes an embodiment of the present invention based on its overall structure. Example

[0033] Please refer to the attached Figure 1 、 2As shown in Figure 3, an extraction tank for battery diaphragm production includes a base frame 10, an extraction box 20 provided on the top of the base frame 10, a centrifugal device 30 provided on one side of the extraction box 20, and a material guiding device 40 provided on both sides of the extraction box 20; the extraction box 20 includes a closing cover 21 provided on the top, a routing component 22 provided above and at both ends of the extraction box 20 for guiding the movement of the battery diaphragm, and a scraping component 23 provided inside the extraction box 20 for scratching the coating layer of the battery diaphragm; the centrifugal device 30 includes a centrifugal tank 31 provided on one side of the extraction box 20, a first bracket 32 ​​provided on the top of the centrifugal tank 31, a driving component 33 provided on the top of the first bracket 32, a second bracket 34 provided on the top of the extraction box 20, and a regulating component 35 provided on the top of the second bracket 34; the material guiding device 40 includes a liquid inlet component 41 provided on the side of the extraction box 20 away from the centrifugal tank 31, a recovery component 42 provided on the side of the extraction box 20 away from the extraction box 20, and a discharge component 43 provided below the recovery component 42; the closing cover 21 includes a first C-shaped groove 211 provided at both ends, a second C-shaped groove 212 provided at the top of the extraction box 20 and matched with the first C-shaped groove 211 to form a complete groove shape, handles 213 provided at both ends of the top of the closing cover 21, and leak-proof stickers 214 adhered to the four outer sides of the closing cover 21; the wiring component 22 includes a first support frame 221 provided at both ends of the top of the extraction box 20, a first roller 222 provided on the first support frame 221, a second support frame 223 provided at both ends inside the extraction box 20, and a second roller 224 provided on the second support frame 223.

[0034] It should be noted that the closing cover 21 is mounted on the top of the extraction box 20 with multiple partitions 231 as the central support, and can also be assembled by cutting the anchor structure at the combination of the closing cover 21 and the extraction box 20. After the closing cover 21 is installed, it should cooperate with the multiple partitions 231 to isolate the extraction box 20 to divide the working areas of the same volume; the first roller 222 and the second roller 224 only serve as steering and cannot wind a large number of diaphragms. Their installation position must ensure that when the diaphragm is running, it can pass through the middle of the complete groove formed by the first C-shaped groove 211 and the second C-shaped groove 212, and can pass through the through groove 232 in the middle of each partition 231 in parallel without any deviation.

[0035] Furthermore, when battery diaphragm extraction is required, the entire closing cover 21 is first removed from the extraction box 20 by the handle 213;

[0036] Furthermore, the battery diaphragm is routed according to the position of the first roller 222 on the first support frame 221 and the position of the second roller 224 on the second support frame 223, and the diaphragm is carefully passed through the middle of the second C-shaped groove 212 and the middle of the through groove 232;

[0037] Furthermore, the entire closing cover 21 is reinstalled on top of the extraction box 20 through the handle 213 to ensure that the first C-shaped groove 211 and the second C-shaped groove 212 can be matched to form a complete groove shape, and the leak-proof sticker 214 fills the gap connecting the closing cover 21 and the extraction box 20.

[0038] Please refer to the attached Figure 1 、 2 As shown in , 3, 4, and 6, the liquid inlet component 41 includes a plurality of liquid storage tanks 411 provided below the base frame 10, a first connecting pipe 412 connecting the outer bottom of the plurality of liquid storage tanks 411, a second connecting pipe 413 provided at the top of the extraction box 20 away from the centrifugal tank 31, the input end is connected to the middle of the first connecting pipe 412, and the output end is connected to the suction pump 414 in the middle of the second connecting pipe 413; the scraping component 23 includes a plurality of partitions 231 arranged at equal intervals in the horizontal direction inside the extraction box 20, a through groove 232 provided in the middle of the partition 231, a strip-shaped telescopic cylinder 233 provided on the upper part of the partition 231, a scratching plate 234 provided at the execution end of the strip-shaped telescopic cylinder 233, and a third roller 235 provided on the lower part of the partition 231; the centrifugal tank 31 includes a first electronic valve 311 provided on one side of the extraction box 20, connected A first connecting pipe 312 is connected to the first electronic valve 311 and the top of the centrifuge tank 31, two annular guide rails 313 are provided at the upper and lower ends of the centrifuge tank 31, and an annular ion screen 314 is sandwiched between the two annular guide rails 313; the driving component 33 includes a plurality of servo motors 331 provided at the top of the first bracket 32, corresponding to the positions of the centrifuge tank 31, a rotating shaft 332 provided at the execution end of the servo motor 331 and passing through the interior of the centrifuge tank 31, and a plurality of stirring plates 333 connecting the side of the rotating shaft 332 and the inner side of the annular ion screen 314; the control component 35 includes a central control machine 351 provided at the top of the second bracket 34, a data display screen 352 provided on one side of the central control machine 351, two ionization plates 353 with opposite polarities provided on both sides of the extraction box 20, and an ion detector 354 provided at the bottom end of one side of the centrifuge tank 31.

[0039] It should be noted that the first connecting pipe 412 is connected to the bottom of the liquid storage tank 411 to ensure that most of the extract in the liquid storage tank 411 can be transported, and the second connecting pipe 413 is connected to the upper side of the extraction box 20 to ensure that the extract will not flow back during the infusion and extraction process; when the bar telescopic cylinder 233 is not extended, the scratch plate 234 should be in a position that is just in contact with the coating layer of the lithium battery diaphragm to prevent a large amount of extract from different extraction areas from circulating with each other. When the bar telescopic cylinder 233 is extended, the scratch plate 234 should be in a position that is basically in contact with the bearing surface of the lithium battery diaphragm to prevent the lithium battery diaphragm from being torn due to excessive force; the first connecting pipe 312 guides the mixed liquid into the interior of the annular ion sieve 314. The annular ion sieve 314 is made of a suitable aperture process, which can retain the required ions inside the annular ion sieve 314 and filter the unnecessary ions to the outside of the annular ion sieve 314.

[0040] Furthermore, the suction pump 414 is started, and the new extraction liquid in the liquid storage tank 411 is poured into the extraction box 20 through the second connecting pipe 413 via the first connecting pipe 412;

[0041] Furthermore, the lithium battery separator passes through the through slot 232 in the middle of each separator 231 under the action of an external machine and is lifted by three rollers 235 to move forward;

[0042] Furthermore, the bar-shaped telescopic cylinder 233 inside the first partition 231 is activated and extended, driving the scraping plate 234 to press downward, scraping off a portion of the coating layer on the lithium battery separator. Afterwards, the bar-shaped telescopic cylinder 233 inside the partition 231 is deactivated and retracted, driving the scraping plate 234 to lift upward;

[0043] Furthermore, when the coating layer of the lithium battery separator passes through the interior of the second separator 231, the corresponding bar-shaped telescopic cylinder 233 starts to extend, driving the scraping plate 234 to press downward, scraping off the same volume of the coating layer of the lithium battery separator. Afterwards, the bar-shaped telescopic cylinder 233 inside the separator 231 stops and contracts, driving the scraping plate 234 to lift downward, and the cycle continues.

[0044] Furthermore, two ionization plates 353 with opposite polarities on both sides of the extraction box 20 are energized, and during the ionization extraction process, the ions to be collected are attracted toward the side close to the centrifugal tank 31;

[0045] Furthermore, the first electronic valve 311 on one side of the extraction box 20 is powered on and opened, and the ion solution is transported into the annular ion screen 314 in the centrifugal tank 31 through the first connecting pipe 312;

[0046] Furthermore, the servo motor 331 on the top of the first bracket 32 ​​is started, and the multiple stirring plates 333 on the side of the rotating shaft 332 drive the annular ion screen 314 to rotate in the middle of the two annular guide rails 313, stirring the ion solution so that it passes through the annular ion screen 314 for ion filtration. During this process, the ion detector 354 continuously monitors the internal ion concentration and displays the data in real time on the data display screen 352.

[0047] Please refer to the attached Figure 1 、 5 As shown in Figure 6, the recovery component 42 includes a filter box 421 provided below the base frame 10, a second electronic valve 422 provided at the bottom outer side of the centrifuge tank 31, and a second connecting pipe 423 connecting the filter box 421 close to the top of one side of the centrifuge tank 31 and the second electronic valve 422; the discharge component 43 includes a third electronic valve 431 provided at the bottom end of the centrifuge tank 31, a discharge pipe 432 connecting all the third electronic valves 431, and a collection tank 433 connected to the discharge end of the discharge pipe 432 at the top.

[0048] It should be noted that, depending on the requirements of the relative molecular mass of the collected ions, an annular ion screen 314 with other apertures can be installed, and the positions of the filter box 421 and the collection tank 433 can be exchanged to determine the ions that need to be collected.

[0049] Furthermore, when the ion detector 354 detects that the ion concentration in the inner area of ​​the annular ion screen 314 has dropped to a certain level, it sends an electrical signal to the central control machine 351, closing the first electronic valve 311 and then controlling the servo motor 331 to stop operating, thus pausing the ion filtering process.

[0050] Furthermore, the second electronic valve 422 at the outer bottom of the centrifugal tank 31 and the third electronic valve 431 at the bottom end of the centrifugal tank 31 are opened, respectively transporting the ion solution outside the annular ion screen 314 in the centrifugal tank 31 to the filter box 421 through the second connecting pipe 423, and transporting the solution inside the annular ion screen 314 to the collection tank 433 through the discharge pipe 432;

[0051] Furthermore, the solution in the filter box 421 is collected harmlessly and then disposed of, and the solution in the collection tank 433 is recycled after industrial treatment.

[0052] The working principle of the present invention is:

[0053] The electrical components in the present invention are all triggered to work by a PLC controller, and the model of the PLC controller is "FX3U-16MR".

[0054] First, when it is necessary to extract the battery diaphragm, the entire closing cover 21 is removed from the top of the extraction box 20 by the handle 213, and the battery diaphragm is arranged according to the position of the first roller 222 on the first support frame 221 and the position of the second roller 224 on the second support frame 223. The diaphragm is carefully passed through the middle of the second C-shaped groove 212 and the middle of the through groove 232. The entire closing cover 21 is reinstalled on the top of the extraction box 20 by the handle 213, ensuring that the first C-shaped groove 211 and the second C-shaped groove 212 can be matched to form a complete groove shape, and the anti-leakage sticker 214 is used to seal the closing cover 2 1 is connected to the extraction box 20 to fill the gap; when extraction is required, the suction pump 414 is started first, and the new extraction liquid in the liquid storage tank 411 is poured into the extraction box 20 through the first connecting pipe 412 through the second connecting pipe 413. Under the action of the external machine, the lithium battery diaphragm passes through the through groove 232 in the middle of each partition 231 and is lifted by the three rollers 235 to move forward. The strip telescopic cylinder 233 inside the first partition 231 starts to extend, driving the scraping plate 234 to press down, scraping off a part of the coating layer on the lithium battery diaphragm. After that, the strip telescopic cylinder inside the partition 231 The cylinder 233 stops working and contracts, driving the scraping plate 234 to move upward. When the coating layer of the lithium battery diaphragm passes through the inside of the second partition 231, the corresponding bar-shaped telescopic cylinder 233 starts to extend, driving the scraping plate 234 to press downward, scraping off the coating layer of the lithium battery diaphragm of the same volume. After that, the bar-shaped telescopic cylinder 233 inside the partition 231 stops working and contracts, driving the scraping plate 234 to move downward, and the cycle continues. At the same time, the two ionization plates 353 with opposite polarities on both sides of the extraction box 20 are energized. In the process of ionization extraction, the ions to be collected are moved to the side close to the centrifugal tank 31. Directional attraction, then, the first electronic valve 311 on one side of the extraction box 20 is energized and opened, and the ion solution is transported into the annular ion screen 314 in the centrifugal tank 31 through the first connecting pipe 312. The servo motor 331 on the top of the first bracket 32 ​​is started, and the multiple stirring plates 333 on the side of the rotating shaft 332 drive the annular ion screen 314 to rotate in the middle of the two annular guide rails 313, stirring the ion solution so that it passes through the annular ion screen 314 for ion filtration. During this process, the ion detector 354 continuously monitors the internal ion concentration and displays the data in real time on the data display screen 352;When the ion detector 354 detects that the ion concentration in the inner region of the annular ion screen 314 has dropped to a certain level, it sends an electrical signal to the central control unit 351, closing the first electronic valve 311. This in turn controls the servo motor 331 to pause operation, halting the ion filtration process. Finally, the second electronic valve 422 at the outer bottom of the centrifuge tank 31 and the third electronic valve 431 at the bottom of the centrifuge tank 31 open, respectively, transporting the ion solution outside the annular ion screen 314 in the centrifuge tank 31 to the filter box 421 through the second connecting pipe 423, and the solution inside the annular ion screen 314 to the collection tank 433 through the discharge pipe 432. The solution in the filter box 421 is collected for harmless disposal, while the solution in the collection tank 433 is recycled after industrial treatment.

[0055] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An extraction tank for producing battery separators, comprising a base frame (10), characterized in that: An extraction box (20) disposed on the top of the base frame (10), a centrifugal device (30) disposed on one side of the extraction box (20), and a material guiding device (40) mounted on both sides of the extraction box (20); The extraction box (20) includes a closing cover (21) provided on the top, a routing component (22) provided above and at both ends of the extraction box (20) and responsible for guiding the movement of the battery diaphragm, and a scraping component (23) provided inside the extraction box (20) and responsible for scraping the coating layer of the battery diaphragm; The centrifugal device (30) comprises a centrifugal tank (31) provided on one side of the extraction box (20), a first bracket (32) provided on the top of the centrifugal tank (31), a driving component (33) provided on the top of the first bracket (32), a second bracket (34) provided on the top of the extraction box (20), and a regulating component (35) provided on the top of the second bracket (34); The material guiding device (40) comprises a liquid inlet component (41) provided on a side of the extraction box (20) away from the centrifugal tank (31), a recovery component (42) provided on a side of the extraction box (20) away from the centrifugal tank (31), and a material discharge component (43) provided below the recovery component (42); The wiring component (22) includes a first support frame (221) provided at both ends of the top of the extraction box (20), a first roller (222) provided on the first support frame (221), a second support frame (223) provided at both ends inside the extraction box (20), and a second roller (224) provided on the second support frame (223); The scraping component (23) includes a plurality of partitions (231) arranged at equal intervals in the transverse direction inside the extraction box (20), a through groove (232) provided in the middle of the partition (231), a strip-shaped telescopic cylinder (233) provided above the inside of the partition (231), a scraping plate (234) provided at the execution end of the strip-shaped telescopic cylinder (233), and a third roller (235) provided at the bottom inside the partition (231). The centrifugal tank (31) comprises a first electronic valve (311) provided on one side of the extraction box (20), a first connecting pipe (312) connecting the first electronic valve (311) and the top of the centrifugal tank (31), two annular guide rails (313) provided at the upper and lower ends of the interior of the centrifugal tank (31), and an annular ion sieve (314) sandwiched between the two annular guide rails (313).

2. The extraction tank for producing battery separators according to claim 1, characterized in that: The closure cover (21) includes a first C-shaped groove (211) provided at both ends, a second C-shaped groove (212) provided at the top of the extraction box (20) and cooperating with the first C-shaped groove (211) to form a complete groove shape, handles (213) provided at both ends of the top of the closure cover (21), and leak-proof stickers (214) adhered to the outer sides of the four sides of the closure cover (21).

3. The extraction tank for producing battery separators according to claim 1, characterized in that: The driving component (33) includes a plurality of servo motors (331) arranged on the top of the first bracket (32) and corresponding to the positions of the centrifugal tank (31), a rotating shaft (332) arranged at the execution end of the servo motor (331) and passing through the interior of the centrifugal tank (31), and a plurality of stirring plates (333) connected to the side of the rotating shaft (332) and the inner side of the annular ion screen (314).

4. The extraction tank for producing battery separators according to claim 1, characterized in that: The control component (35) includes a central control machine (351) arranged on the top of the second bracket (34), a data display screen (352) arranged on one side of the central control machine (351), two ionization plates (353) with opposite polarities arranged on both sides of the interior of the extraction box (20), and an ion detector (354) arranged at the bottom end of one side of the centrifugal tank (31).

5. The extraction tank for producing battery separators according to claim 1, characterized in that: The liquid inlet component (41) comprises a plurality of liquid storage tanks (411) disposed below the base frame (10), a first connecting pipe (412) connected to the outer bottoms of the plurality of liquid storage tanks (411), and a second connecting pipe (413) disposed at the top of the extraction box (20) away from the centrifugal tank (31), with an input end connected to the middle of the first connecting pipe (412) and an output end connected to a suction pump (414) at the middle of the second connecting pipe (413).

6. The extraction tank for producing battery separators according to claim 1, characterized in that: The recovery component (42) includes a filter box (421) provided below the base frame (10), a second electronic valve (422) provided at the bottom outside the centrifugal tank (31), and a second connecting pipe (423) connecting the top of the filter box (421) on one side close to the centrifugal tank (31) and the second electronic valve (422).

7. The extraction tank for producing battery separators according to claim 1, characterized in that: The discharge component (43) comprises a third electronic valve (431) provided at the bottom end of the centrifugal tank (31), a discharge pipe (432) connected to all the third electronic valves (431), and a collection tank (433) connected to the discharge end of the discharge pipe (432) at the top.

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