Lithium battery electrolyte recycling device and method

Abstract

The present invention relates to the technical field of electrolyte recovery, and specifically, to a lithium battery electrolyte recovery and reuse device. It includes an electrolyte recovery box and a support frame supporting the electrolyte recovery box, a centrifugal tank is arranged above the support frame, a driving motor arranged on the top of the centrifugal tank is used to drive the driving motor in the centrifugal tank to rotate, and a feeding device is arranged on both sides of the centrifugal tank, the outer ring of the centrifugal tank is connected to the electrolyte recovery box through multiple pipes, and the output shaft of the driving motor is fixedly connected to the centrifugal cylinder. During the process of the first push rod contracting inward, the second push rod is used to push the pushing mechanism to squeeze multiple ejection parts, and the ejection parts expand outward to push the filter plate upward, thereby raising the height of the filter plate, separating the impurities floating on the electrolyte from the electrolyte, and cooperating with the scraper ring to slide on the filter plate, scraping the impurities attached to the surface of the filter plate into the storage cavity for centralized collection, so as to avoid the impurities blocking the filter holes of the centrifugal cylinder and affecting the separation effect of the electrolyte and impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of electrolyte recovery, and in particular to a lithium battery electrolyte recovery and reuse device and method. Background Art

[0002] According to statistics, from 1994 to 2003, the annual growth rate of lithium-ion battery production in the world was more than 50%. Especially in my country: in 2004, the output of lithium-ion batteries in my country was 702 million, in 2010 it reached 2.68 billion, in 2011 it reached 2.98 billion, and in 2012 it was close to 4 billion. At present, there are about 300 lithium-ion battery manufacturers in my country, mainly concentrated in Guangdong, Jiangsu and Beijing-Tianjin. With the successful industrial application of lithium-ion batteries in the fields of power tools, energy storage batteries, electric bicycles, hybrid electric vehicles and electric vehicle lights, the demand for lithium-ion batteries will show explosive growth.

[0003] Therefore, as the use time of these lithium batteries increases, their lifespan is also shortening, which makes the post-processing and recycling of lithium batteries an issue that needs to be solved now.

[0004] In the prior art, when recycling waste lithium batteries, in order to separate the electrolyte and impurities, a separator is usually used to process the electrolyte. Since suspended matter is attached to the surface of the electrolyte, the suspended matter will adhere to the inner wall of the centrifuge due to the centrifugal effect, and the agglomeration or aggregation of the suspended matter will also cause the clogging of the filter medium inside the centrifuge, thereby preventing the electrolyte from passing through the filter, which will reduce the filtration speed. Although a cleaning mechanism is provided to clean the attached impurities, when the centrifugation is stopped, the cleaned impurities will still fall to the bottom of the centrifuge, so that when the centrifugation is performed again, the impurities will still block the filter holes. Summary of the invention

[0005] The purpose of the present invention is to provide a lithium battery electrolyte recovery and reuse device and method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention aims to provide a lithium battery electrolyte recovery and reuse device, comprising an electrolyte recovery box and a support frame supporting the electrolyte recovery box, a centrifugal tank is arranged above the support frame, a driving motor arranged on the top of the centrifugal tank is used to drive the driving motor in the centrifugal tank to rotate, and a feeding device is arranged on both sides of the centrifugal tank, the outer ring of the centrifugal tank is connected to the electrolyte recovery box through a plurality of pipelines, the output shaft of the driving motor is fixedly connected to the centrifugal cylinder, a cleaning part is arranged inside the centrifugal cylinder, a vertical rod rotatably connected to the cleaning part and a first motor whose bottom is fixed on the inner wall of the centrifugal tank are coaxially connected, the cleaning part rotates relative to the centrifugal cylinder so that the cleaning part is outwardly fitted with the inner wall of the centrifugal cylinder to scrape off impurities attached to the filter holes of the centrifugal cylinder, and the cleaning part pushes the sealing ring slidably connected to the centrifugal cylinder to lift upward, so as to close the storage cavity formed around the centrifugal cylinder, thereby limiting the overflow of impurities inside the storage cavity;

[0007] The filter plate arranged at the bottom of the centrifugal cylinder is slidably connected to the vertical rod. When the cleaning part contracts inwardly, the storage cavity is opened. The cleaning part pushes the ejection part outwardly through the pushing mechanism arranged in the vertical rod. The ejection part expands outwardly to push the filter plate upward, so that the height of the filter plate is raised, and impurities floating on the upper layer of the electrolyte are separated from the electrolyte. The ejection part expands outwardly to scrape the floating objects attached to the blocking ring into the storage cavity.

[0008] As a further improvement of the present technical solution, the cleaning part includes a first scraper and a second scraper slidably connected to the first scraper, the upper and lower ends of the second scraper are provided with protrusions for limiting the first scraper, and the stopper arranged on the side of the second scraper close to the vertical pole is used to drive the stopper to move upward when the first scraper moves up, and the protrusion pushes the filter plate with an arc-shaped bottom upward, so that the sealing ring closes the storage cavity to limit the overflow of floating objects inside the storage cavity.

[0009] As a further improvement of the present technical solution, the cleaning part also includes a first push rod and a second push rod rotatably connected to the first push rod, the two ends of the first push rod are respectively rotatably connected to the first scraper and the vertical rod, and the two ends of the second push rod are respectively rotatably connected to the middle part of the first push rod and the pushing mechanism.

[0010] As a further improvement of the present technical solution, the pushing mechanism is composed of a pushing rod and a cone coaxially connected to the pushing rod, the cone is an inverted cone, the outer ring of the pushing rod is rotatably connected to multiple second top rods, and the auxiliary vertical rod slidably connected to the pushing rod and the cone is fixedly connected to the bottom of the vertical rod.

[0011] As a further improvement of the present technical solution, the ejection part includes an ejection piece, which is wedge-shaped and slidably connected to the vertical rod. Limit blocks for maintaining horizontal sliding of the ejection piece are arranged on both sides of the ejection piece. When the ejection piece expands outward, the ejection piece pushes the filter plate to slide on the vertical rod, separates impurities floating on the upper layer of the electrolyte from the electrolyte, and lifts the filter plate to exceed the lower edge of the storage chamber.

[0012] As a further improvement of the technical solution, the ring extending from one end of the bottom of the ejector is slidably connected to the column, the first spring sleeved on the bottom of the column resists the ring, and the top of the column is fixedly connected to a scraper ring for scraping off floating objects attached to the surface of the filter plate. The bottoms of multiple scraper rings are recessed inward, and multiple auxiliary rings arranged in the recessed parts are offset from adjacent scraper rings.

[0013] As a further improvement of the technical solution, a plurality of second springs arranged outside the bottom of the cone are fixedly connected to the ejector, so that after the ejector is released from extrusion, the ejector is pulled back by the second springs to restore the initial state.

[0014] As a further improvement of the technical solution, sewage pipes are connected to both sides of the bottom of the centrifugal cylinder, and one end of the sewage pipe is connected to a sewage pump.

[0015] As a further improvement of the present technical solution, the filter plate is fitted with the inner wall of the centrifugal barrel. When the filter plate moves up to completely block the storage chamber, the top of the filter plate is fitted with the sealing gasket arranged in the groove of the centrifugal barrel, and the bottom of the storage chamber is connected to the pump body through a pipe.

[0016] The second object of the invention is to provide a method for operating a lithium battery electrolyte recovery and reuse method including any one of the above, comprising the following method steps:

[0017] S1. Add the raw materials into the centrifuge through the feeding device, and then use the centrifugal action of the centrifuge to separate the electrolyte from the impurities;

[0018] S2. When the first scraper expands outward and fits against the inner wall of the centrifugal cylinder, the first scraper and the second scraper scrape off the impurities attached to the inner wall of the centrifugal cylinder, so that the electrolyte overflows smoothly from the filter holes. Finally, the electrolyte is collected into the electrolyte recovery box with the assistance of the blades.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the lithium battery electrolyte recovery and reuse equipment, the centrifugal cylinder rotates to separate the electrolyte and impurities by the action of centrifugal force, and the cleaning part and the centrifugal cylinder form relative rotation to scrape off the impurities and floating objects attached to the inner wall of the centrifugal cylinder, so that the electrolyte in the centrifugal cylinder is smoothly discharged into the electrolyte recovery box for recycling, thereby improving the recovery rate of the electrolyte, saving time and preventing waste.

[0021] 2. In the lithium battery electrolyte recovery and reuse equipment, when the first push rod shrinks inward, the second push rod is used to push the pushing mechanism to extrude multiple ejection parts, and the ejection parts expand outward to push the filter plate upward, thereby raising the height of the filter plate, separating the impurities floating on the electrolyte from the electrolyte, and cooperating with the scraper ring to slide on the filter plate to scrape the impurities attached to the surface of the filter plate into the storage chamber for centralized collection, so as to avoid the impurities clogging the filter holes of the centrifugal cylinder and affecting the separation effect of the electrolyte and impurities.

[0022] 3. In the lithium battery electrolyte recovery and reuse equipment, the second scraper is rotated. When the protrusion at the bottom of the second scraper contacts the filter plate, the centrifugal force generated by the rotation drives the filter plate to move up, and the filter plate closes the storage cavity to prevent the electrolyte from entering the storage cavity during centrifugation and flushing out the collected floating objects. Secondly, when the second scraper contracts inwardly, the filter plate opens the storage cavity, thereby controlling the closure of the switch of the storage cavity, collecting impurities in the storage cavity, and preventing the impurities from overflowing again. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a front view of the internal structure of the centrifugal tank of the present invention;

[0025] Figure 3 A top view of the internal structure of the centrifugal tank of the present invention is cut away;

[0026] Figure 4 It is a schematic diagram of the cleaning part, the ejection part and the filter plate structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the cleaning part of the present invention;

[0028] Figure 6 It is a schematic diagram of a partial cutaway structure of a second scraper of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the pushing mechanism and the ejection part of the present invention;

[0030] Figure 8 It is a schematic diagram of the explosion structure of the ejector and the scraper ring of the present invention;

[0031] Fig. 9 It is a schematic diagram of the explosion structure of the ejector and the auxiliary upright pole of the present invention;

[0032] Fig.10 It is a front view of the cutaway structure of the centrifugal cylinder and the sealing ring of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 100. electrolyte recovery box; 101. support frame; 102. centrifugal tank; 103. feeding device; 104. blade;

[0035] 110, driving motor; 111, centrifugal cylinder; 112, filter plate; 113, storage chamber; 114, blocking ring;

[0036] 200, cleaning part; 201, first scraper; 202, second scraper; 203, first push rod; 204, second push rod; 210, stopper;

[0037] 300, ejector; 301, ejector member; 302, column; 303, first spring;

[0038] 310, scraper ring; 311, auxiliary ring;

[0039] 400, pushing mechanism; 401, pushing rod; 402, cone; 403, second spring; 404, auxiliary pole. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] like Figure 1 , Figure 2 and Fig.10 As shown, a lithium battery electrolyte recovery and reuse device is provided, including an electrolyte recovery box 100 and a support frame 101 supporting the electrolyte recovery box 100, a centrifuge tank 102 is arranged above the support frame 101, a driving motor 110 arranged on the top of the centrifuge tank 102 is used to drive the driving motor 110 in the centrifuge tank 102 to rotate, and a feeding device 103 is arranged on both sides of the centrifuge tank 102, the outer ring of the centrifuge tank 102 is connected to the electrolyte recovery box 100 through a plurality of pipes, a cleaning part 200 is arranged inside the centrifuge cylinder 111, and the vertical rod rotatably connected to the cleaning part 200 is coaxially connected to the first motor whose bottom is fixed on the inner wall of the centrifuge tank 102.

[0044] Specifically, during operation: raw materials are added into the centrifugal barrel 111 fixedly connected to the output shaft of the driving motor 110 through the feeding devices 103 on both sides of the driving motor 110, and the driving motor 110 drives the centrifugal barrel 111 to rotate, and the first motor drives the cleaning part 200 to rotate relative to the centrifugal barrel 111 (that is, the cleaning part 200 rotates in opposite directions to the centrifugal barrel 111, which is a relative rotation). During the rotation, the centrifugal force is used to make the cleaning part 200 fit outwardly against the inner wall of the centrifugal barrel 111, thereby scraping off impurities attached to the filter holes of the centrifugal barrel 111 to prevent the impurities from clogging the filter holes and affecting the separation efficiency of the electrolyte.

[0045] Secondly, during the process of the cleaning part 200 expanding outward, the cleaning part 200 pushes the sealing ring 114 slidably connected to the centrifugal cylinder 111 to lift upward, closing the storage cavity 113 formed around the centrifugal cylinder 111, thereby limiting the overflow of impurities inside the storage cavity 113, thereby limiting the impurities collected inside the storage cavity 113.

[0046] Therefore, based on the above structure, Figure 4-Figure 5The structure of the cleaning part 200 is further disclosed. The cleaning part 200 includes a first scraper 201 and a second scraper 202 slidably connected to the first scraper 201. When the raw material is centrifuged, in order to prevent the first scraper 201 from being separated from the second scraper 202, protrusions for limiting the first scraper 201 are provided at the upper and lower ends of the second scraper 202, thereby preventing the first scraper 201 from being separated from the second scraper 202 under the action of centrifugal force, thereby ensuring that the first scraper 201 and the second scraper 202 are always in contact with each other.

[0047] Because the cleaning part 200 further includes a first push rod 203 and a second push rod 204 rotatably connected to the first push rod 203, the two ends of the first push rod 203 are rotatably connected to the first scraper 201 and the vertical rod, so the rotating first push rod 203 gradually extends from the initial inclined state to the horizontal state. Figure 2 As shown, the first push rod 203 pulls the first scraper 201 to slide on the second scraper 202. When the first scraper 201 fits against the inner wall of the centrifugal barrel 111, the first scraper 201 fits against the protrusions at the top of the second scraper 202. As a result, under the rotation of the first scraper 201, impurities attached to the filter holes and the inner wall of the centrifugal barrel 111 are scraped off to prevent the impurities from clogging the filter holes and affecting the separation effect of the electrolyte and impurities.

[0048] During the expansion of the first scraper 201, the protrusion at the bottom of the second scraper 202 contacts the arc-shaped filter plate 112 (at this time, the end of the first top rod 203 away from the two ends is against the stopper 210 set on the side of the second scraper 202 close to the vertical rod), and under the action of centrifugal force, the protrusion drives the filter plate 112 to move upward, so that the blocking ring 114 closes the storage chamber 113 to limit the overflow of floating objects in the storage chamber 113, thereby limiting the impurities collected in the storage chamber 113. After the impurities in the storage chamber 113 are collected for a period of time, the pump body is connected to the pump body through the pipeline at the bottom of the storage chamber 113, and the pump body sucks the impurities in the storage chamber 113 to the outside so that the impurities can be collected when the electrolyte is separated again.

[0049] At the same time, when the sealing ring 114 is raised during electrolyte separation, some impurities will adhere to the inner wall of the sealing ring 114. During the upward movement of the sealing ring 114, the filter plate 112 can be used to scrape off the attached impurities, so that the impurities are gathered around the filter plate 112 and the sealing ring 114, so that when the centrifugation is stopped later, the impurities fall to the bottom of the centrifuge cylinder 111. Drain pipes are connected to both sides of the bottom of the centrifuge cylinder 111, and one end of the drain pipe is connected to a sewage pump to discharge the impurities at the bottom of the centrifuge cylinder 111, thereby realizing the separation of the electrolyte and impurities.

[0050] It is additionally noted that the filter plate 112 fits against the inner wall of the centrifugal barrel 111. When the filter plate 112 moves upward to completely seal the storage chamber 113, the top of the filter plate 112 fits against the sealing gasket disposed in the groove of the centrifugal barrel 111, thereby preventing the electrolyte from entering the storage chamber 113 and causing a waste of electrolyte.

[0051] During the centrifugal process, the electrolyte flows from the filter holes into the cavity formed by the centrifugal cylinder 111 and the centrifugal tank 102, and then cooperates with the multiple blades 104 (refer to Figure 3 ), the electrolyte is transported to the electrolyte recovery box 100 through multiple pipes connected to the centrifugal tank 102, so as to recover the electrolyte for later use.

[0052] The above is embodiment 1 of the present invention. Figure 7-Figure 9 And cooperate Figure 4 Embodiment 2 of the present invention is shown.

[0053] Since the two ends of the second push rod 204 are rotatably connected to the middle part of the first push rod 203 and the pushing mechanism 400 , when the centrifugal operation is performed, the outward extension of the second push rod 204 will drive the pushing mechanism 400 to break away from the squeezing of the ejection portion 300 .

[0054] Secondly, the filter plate 112 arranged at the bottom of the centrifugal barrel 111 is slidably connected to the vertical rod. When the cleaning part 200 contracts inward, the storage chamber 113 is opened to facilitate the collection of impurities in the later stage. The cleaning part 200 pushes the ejection part 300 outward through the pushing mechanism 400 arranged in the vertical rod. The ejection part 300 expands outward to push the filter plate 112 upward, so that the height of the filter plate 112 is raised, and impurities floating on the upper layer of the electrolyte are separated from the electrolyte. The ejection part 300 expands outward to scrape the floating objects attached to the sealing ring 114 into the storage chamber 113.

[0055] It can be seen that the second push rod 204 moves downward to form a downward pressure on the pushing mechanism 400, so that the ejection part 300 pushes the filter plate 112 upward, and the ejection part 300 scrapes off the impurities attached to the sealing ring 114. At the same time, the height of the filter plate 112 is increased and the ejection part 300 expands outward to push the impurities scraped by the first scraper 201 into the storage chamber 113 for centralized collection, so as to prevent the impurities on the filter plate 112 from clogging the filter holes when centrifugation is performed again, thereby affecting the collection efficiency.

[0056] Therefore, on the basis of the above structure, by disclosing the structure of the pushing mechanism 400, the pushing mechanism 400 is composed of a pushing rod 401 and a cone 402 coaxially connected to the pushing rod 401. Since the cone 402 is an inverted cone, the outer ring of the pushing rod 401 is rotatably connected to multiple second push rods 204, and the auxiliary vertical rod 404 slidably connected to the pushing rod 401 and the cone 402 is fixedly connected to the bottom of the vertical rod. Therefore, when the first push rod 203 pushes the rotatably connected push rod 401 to move downward, the cone 402 slides downward along the auxiliary vertical rod 404, thereby squeezing the ejection part 300 at the bottom, so that the ejection part 300 pushes the filter plate 112 to lift upward.

[0057] Therefore, the specific structure of the ejector 300 is disclosed. The ejector 300 includes an ejector 301, which is wedge-shaped and slidably connected to the vertical rod. In order to prevent the ejector 301 from being offset when sliding back and forth in the vertical rod, limit blocks for keeping the ejector 301 sliding horizontally are arranged on both sides of the ejector 301. When the cone 402 gradually squeezes the ejector 301, the ejector 301 expands outward, and the ejector 301 pushes the filter plate 112 to slide on the vertical rod, separating the impurities floating on the upper layer of the electrolyte and the impurities cleaned by the first scraper 201 from the electrolyte. At the same time, the filter plate 112 can also limit the impurities at the bottom (i.e., the impurities between the bottom of the filter plate 112 and the bottom of the centrifugal cylinder 111). The ejector 301 lifts the filter plate 112 to exceed the lower edge of the storage chamber 113, so that the impurities on the filter plate 112 can be cleaned into the storage chamber 113 later.

[0058] It should be noted here that: when the centrifugation process is stopped, the height of the sealing ring 114 decreases and the height of the filter plate 112 increases, that is, the filter plate 112 and the sealing ring 114 slide relative to each other, thereby scraping off impurities attached to the inner wall above the sealing ring 114, and the scraped impurities fall onto the filter plate 112.

[0059] In order to scrape the impurities on the filter plate 112 into the storage chamber 113 and ensure the cleaning effect, the ring extending from one end of the bottom of the ejector 301 is slidably connected to the column 302, the first spring 303 sleeved on the bottom of the column 302 is against the ring, and the top of the column 302 is fixedly connected to a scraper ring 310 for scraping off floating objects attached to the surface of the filter plate 112. When the ejector 301 expands outward, the ejector 301 cleans the impurities attached to the filter plate 112, and the elastic action of the first spring 303 is used to keep the scraper ring 310 in contact with the surface of the filter plate 112, thereby pushing the impurities into the storage chamber 113 for centralized collection.

[0060] In addition, the first scraper 201 and the second scraper 202 gradually change from horizontal to inclined, thereby increasing the pressure on the first push rod 203, so that the scraper ring 310 can maximize the cleaning of impurities on the filter plate 112.

[0061] It should be noted that: since multiple scraper rings 310 are spliced ​​together to form a circular ring, vacant parts will appear between adjacent scraper rings 310 during the expansion process of the scraper rings 310. Therefore, the bottoms of the multiple scraper rings 310 are set to be concave inward, and the multiple auxiliary rings 311 set in the concave parts are staggered with the adjacent scraper rings 310 to fill the vacant parts, so that impurities on the filter plate 112 can be cleaned into the storage chamber 113, thereby reducing the adhesion of impurities on the filter plate 112 and improving the separation efficiency when centrifugation is performed again.

[0062] Furthermore, when the cone 402 is released from the extrusion of the ejector 301 (i.e., the separation operation is performed again), the ejector 301 is fixedly connected to the cone 402 through a plurality of second springs 403 arranged outside the bottom of the cone 402, so that after the ejector 301 is released from the extrusion, the ejector 301 is pulled back under the action of the second springs 403 to restore the initial state.

[0063] The lithium battery electrolyte recovery and reuse method of the present invention has the following specific steps:

[0064] S1, adding the raw materials into the centrifugal cylinder 111 through the feeding device 103, and then using the centrifugal action of the centrifugal cylinder 111 to separate the electrolyte from the impurities;

[0065] S2. When the first scraper 201 expands outward and fits against the inner wall of the centrifugal barrel 111, the first scraper 201 and the second scraper 202 scrape off the impurities attached to the inner wall of the centrifugal barrel 111, so that the electrolyte overflows smoothly from the filter holes. Finally, with the assistance of the blades 104, the electrolyte is collected into the electrolyte recovery box 100.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lithium battery electrolyte recovery and reuse device, comprising an electrolyte recovery box (100) and a support frame (101) supporting the electrolyte recovery box (100), a centrifugal tank (102) is arranged above the support frame (101), a driving motor (110) arranged on the top of the centrifugal tank (102) is used to drive the driving motor (110) in the centrifugal tank (102) to rotate, and a feeding device (103) is arranged on both sides of the centrifugal tank (102), the outer ring of the centrifugal tank (102) is connected to the electrolyte recovery box (100) through a plurality of pipelines, and the output shaft of the driving motor (110) is fixedly connected to the centrifugal cylinder (111), characterized in that: A cleaning part (200) is arranged inside the centrifugal cylinder (111); a vertical rod rotatably connected to the cleaning part (200) is coaxially connected to a first motor whose bottom is fixed on the inner wall of the centrifugal tank (102); the cleaning part (200) rotates relative to the centrifugal cylinder (111) so that the cleaning part (200) is outwardly attached to the inner wall of the centrifugal cylinder (111) to scrape off impurities attached to the filter holes of the centrifugal cylinder (111); and the cleaning part (200) pushes a sealing ring (114) slidably connected to the centrifugal cylinder (111) to lift upwards, so as to close a storage cavity (113) formed around the centrifugal cylinder (111), thereby limiting the overflow of impurities inside the storage cavity (113); The filter plate (112) arranged at the bottom of the centrifugal cylinder (111) is slidably connected to the vertical rod. When the cleaning portion (200) contracts inwardly, the storage chamber (113) opens. The cleaning portion (200) pushes the ejection portion (300) outwardly through the pushing mechanism (400) arranged in the vertical rod. The ejection portion (300) expands outwardly to push the filter plate (112) upward, so that the height of the filter plate (112) is raised, and impurities floating on the upper layer of the electrolyte are separated from the electrolyte. The ejection portion (300) expands outwardly to scrape the floating objects attached to the blocking ring (114) into the storage chamber (113).

2. The lithium battery electrolyte recovery and reuse equipment according to claim 1, characterized in that: The cleaning portion (200) comprises a first scraper (201) and a second scraper (202) slidably connected to the first scraper (201); the second scraper (202) is provided with protrusions at both upper and lower ends for limiting the first scraper (201); a stopper (210) provided on a side of the second scraper (202) close to the vertical rod is used to drive the stopper (210) to move upward when the first scraper (201) moves upward, and the protrusion pushes the filter plate (112) with an arc-shaped bottom upward, so that the blocking ring (114) closes the storage chamber (113) to limit the overflow of floating objects in the storage chamber (113).

3. The lithium battery electrolyte recovery and reuse equipment according to claim 1, characterized in that: The cleaning part (200) further comprises a first push rod (203) and a second push rod (204) rotatably connected to the first push rod (203), wherein two ends of the first push rod (203) are rotatably connected to the first scraper (201) and the vertical rod, and two ends of the second push rod (204) are rotatably connected to the middle part of the first push rod (203) and the pushing mechanism (400).

4. The lithium battery electrolyte recovery and reuse equipment according to claim 1, characterized in that: The pushing mechanism (400) is composed of a pushing rod (401) and a cone (402) coaxially connected to the pushing rod (401); the cone (402) is an inverted cone; the outer ring of the pushing rod (401) is rotatably connected to a plurality of second top rods (204); and an auxiliary vertical rod (404) slidably connected to the pushing rod (401) and the cone (402) is fixedly connected to the bottom of the vertical rod.

5. The lithium battery electrolyte recovery and reuse equipment according to claim 1, characterized in that: The ejection part (300) comprises an ejection piece (301), the ejection piece (301) is wedge-shaped and slidably connected to the vertical rod, and limit blocks for maintaining the horizontal sliding of the ejection piece (301) are arranged on both sides of the ejection piece (301). When the ejection piece (301) expands outward, the ejection piece (301) pushes the filter plate (112) to slide on the vertical rod, thereby separating impurities floating on the upper layer of the electrolyte from the electrolyte, and lifting the filter plate (112) to a position above the lower edge of the storage chamber (113).

6. The lithium battery electrolyte recovery and reuse equipment according to claim 5, characterized in that: A collar extending from one end of the bottom of the ejector (301) is slidably connected to the column (302); a first spring (303) sleeved on the bottom of the column (302) abuts against the collar; and a scraper ring (310) for scraping off floating objects attached to the surface of the filter plate (112) is fixedly connected to the top of the column (302); the bottoms of the plurality of scraper rings (310) are recessed inwardly, and a plurality of auxiliary rings (311) arranged at the recessed portions are offset from adjacent scraper rings (310).

7. The lithium battery electrolyte recovery and reuse equipment according to claim 4, characterized in that: A plurality of second springs (403) arranged outside the bottom of the cone (402) are fixedly connected to the ejector (301), so that after the ejector (301) is released from extrusion, the ejector (301) is pulled back under the action of the second springs (403) to restore the initial state.

8. The lithium battery electrolyte recovery and reuse equipment according to claim 1, characterized in that: Both sides of the bottom of the centrifugal cylinder (111) are connected to sewage pipes, one end of which is connected to a sewage pump, and a plurality of blades (104) fixedly connected to the centrifugal cylinder (111) are arranged between the centrifugal cylinder (111) and the centrifugal tank (102).

9. The lithium battery electrolyte recovery and reuse equipment according to claim 1, characterized in that: The filter plate (112) fits against the inner wall of the centrifugal cylinder (111); when the filter plate (112) moves upward to completely block the storage chamber (113), the top of the filter plate (112) fits against a sealing gasket disposed in a notch of the centrifugal cylinder (111); and the bottom of the storage chamber (113) is connected to a pump body via a pipeline.

10. A method for operating the lithium battery electrolyte recovery and reuse method according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1, adding the raw materials into the centrifugal cylinder (111) through the feeding device (103), and then using the centrifugal action of the centrifugal cylinder (111) to separate the electrolyte from the impurities; S2. When the first scraper (201) expands outward and fits against the inner wall of the centrifugal cylinder (111), the first scraper (201) and the second scraper (202) scrape off impurities attached to the inner wall of the centrifugal cylinder (111), allowing the electrolyte to smoothly overflow from the filter holes. Finally, with the assistance of the blades (104), the electrolyte is collected into the electrolyte recovery box (100).

Images