Electrolysis recovery device for metal in lithium battery leachate

Abstract

The utility model relates to the technical field of lithium battery recovery, and particularly discloses an electrolytic recovery device for metal in lithium battery leachate, which comprises a recovery box body, a feeding assembly; a crushing assembly; a leaching assembly; a stirring assembly; the first recycling assembly is located on the side, away from the crushing assembly, of the leaching assembly; an electrolysis assembly; and the second recycling assembly is located at the bottom of the electrolysis assembly, and the second recycling assembly is detachably connected with the recycling box body. According to the electrolytic recovery device for the metal in the lithium battery leachate, the leaching process is accelerated, the leaching efficiency is improved, and the problem that the lithium batteries are accumulated at the bottom and are insufficiently contacted with the liquid when the lithium batteries are subjected to acid leaching or alkaline leaching is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, in particular to a device for electrolytic recovery of metals in lithium battery leaching solution. Background Art

[0002] Existing waste lithium batteries generally recover valuable metals such as cobalt, copper, nickel, and aluminum through process steps such as pretreatment, leaching process, chemical impurity removal, and extraction separation. However, in the treatment process, more equipment is used, and there is a problem that when acid leaching or alkali leaching the lithium battery leaching solution, the lithium batteries accumulate at the bottom and have insufficient contact with the liquid.

[0003] Therefore, how to solve the problem that when acid leaching or alkali leaching the lithium battery leaching solution, the lithium batteries accumulate at the bottom and have insufficient contact with the liquid has become an urgent technical problem for those skilled in the art to solve. Summary of the Utility Model

[0004] In view of this, aiming at the deficiencies of the existing technology, the utility model provides a device for electrolytic recovery of metals in lithium battery leaching solution, aiming to solve the problem that when acid leaching or alkali leaching the lithium battery leaching solution, the lithium batteries accumulate at the bottom and have insufficient contact with the liquid.

[0005] The utility model provides a device for electrolytic recovery of metals in lithium battery leaching solution, including:

[0006] A recovery box body;

[0007] A feeding assembly, located at the top of the recovery box body;

[0008] A crushing assembly, located inside the recovery box body, and the crushing assembly is located below the feeding assembly;

[0009] A leaching assembly, located on the side of the crushing assembly away from the feeding assembly, and the leaching assembly is slidably connected to the recovery box body;

[0010] A stirring assembly, located between the crushing assembly and the leaching assembly, and both ends of the stirring assembly are slidably connected to the inner side wall of the recovery box body;

[0011] A first recovery assembly, located on the side of the leaching assembly away from the crushing assembly;

[0012] An electrolysis assembly, located below the first recovery assembly, and the electrolysis assembly is located at the bottom of the recovery box body;

[0013] A second recovery assembly, located at the bottom of the electrolysis assembly, and the second recovery assembly is detachably connected to the recovery box body.

[0014] Further, the feeding assembly includes:

[0015] Feeding ports, there are two of them. Both of the two feeding ports are opened at the top of the recycling box body and are respectively located on both sides of the recycling box body;

[0016] L-shaped feeding plates, there are two of them. The two L-shaped feeding plates are symmetrically arranged along the horizontal direction. The L-shaped feeding plate includes a horizontal plate and a vertical plate. The vertical plate is arranged vertically at one end of the horizontal plate, and the other end of the horizontal plate extends into the interior of the recycling box body;

[0017] A telescopic rod, the axial direction of the telescopic rod is parallel to the horizontal direction. The telescopic rod is arranged on the top of the horizontal plate, and one end of the telescopic rod passes through the vertical plate;

[0018] A pushing block, connected to the other end of the telescopic rod;

[0019] A first motor, the first motor is fixed on the vertical plate, and the output end of the first motor is connected to one end of the telescopic rod.

[0020] Further, the crushing assembly includes:

[0021] Crushing rollers, there are two of them. The two crushing rollers are arranged below the L-shaped feeding plate;

[0022] Liquid spraying nozzles, there are several of them. The several liquid spraying nozzles are arranged on the inner side wall of the recycling box body, and the liquid spraying nozzles are located on the side of the crushing roller close to the L-shaped feeding plate.

[0023] Further, the leaching assembly includes:

[0024] A leaching tank, located inside the recycling box body, and the leaching tank is located below the crushing roller. Slide plates are symmetrically arranged on both sides of the leaching tank, and a first liquid outlet is opened at the bottom of the leaching tank;

[0025] Chute grooves, located on both sides of the leaching tank, and the chute grooves are opened on the inner side wall of the recycling box body. The chute grooves are in sliding fit with the slide plates.

[0026] Further, the stirring assembly includes:

[0027] Support rods, arranged horizontally inside the recycling box body;

[0028] Slide rails, arranged vertically on the inner side wall of the recycling box body, and limiting plates are arranged at both ends of the slide rails;

[0029] Sliding blocks, the sliding blocks are in sliding fit with the slide rails, and the sliding blocks are connected to the support rods;

[0030] The stirring shaft is vertically arranged in the middle of the support rod. One end of the stirring shaft is connected to the support rod, and the other end of the stirring shaft faces the leaching tank.

[0031] The stirring blades are arranged staggeredly along the circumferential direction of the stirring shaft. One end of the stirring blade is connected to the stirring shaft.

[0032] The second motor is arranged on the support rod. The outer cover of the second motor is provided with a protective shell. The other end of the stirring shaft extends into the protective shell and is connected to the output end of the second motor.

[0033] Furthermore, the first recovery component includes:

[0034] The first recovery box is located inside the recovery box body, and the first recovery box is located on the side of the leaching tank away from the crushing roller. A second liquid outlet is opened at the bottom of the first recovery box.

[0035] The first screen is inclined and arranged on the top of the first recovery box. The two ends of the first screen are respectively connected to the two inner walls of the recovery box body. A first through hole is provided on the side of the recovery box body, and the bottom end of the first through hole is flush with the top end of the first screen.

[0036] Furthermore, the first recovery component further includes:

[0037] The second recovery box is arranged on the outer side wall of the recovery box body, and the second recovery box is communicated with the first through hole.

[0038] Furthermore, the electrolysis component includes:

[0039] The electrolytic cell is located at the bottom of the first recovery box. A third liquid outlet is opened at the bottom of the electrolytic cell.

[0040] The diaphragm is vertically arranged inside the electrolytic cell. The two sides of the diaphragm divide the electrolytic cell into an anode chamber and a cathode chamber.

[0041] The anode plate and the cathode plate are respectively located inside the anode chamber and the cathode chamber, and the anode plate and the cathode plate are oppositely arranged on the inner side wall of the electrolytic cell.

[0042] Furthermore, the second recovery component includes:

[0043] There are two hydrocyclones, and the two hydrocyclones are respectively arranged at the bottoms of the anode chamber and the cathode chamber.

[0044] The output end of the third motor is connected to the hydrocyclone.

[0045] Furthermore, the second recovery component comprises:

[0046] A third recovery box, located at the bottom of the electrolytic cell;

[0047] The second screen is horizontally arranged on the top of the third recovery box, and the second screen is detachably connected to the third recovery box.

[0048] Compared with the prior art, the utility model has the beneficial effect that the crushing component of the metal electrolytic recovery device in the lithium battery leachate provided by the utility model is used to crush the lithium battery, so that the metal components such as nickel and copper inside the lithium battery are exposed, which is convenient for the subsequent leaching and electrolytic recovery process; the leaching component is used to perform acid leaching or alkaline leaching on the crushed lithium battery to effectively dissolve the metal ions in the lithium battery, ensure that the metal can fully enter the solution, and create favorable conditions for subsequent electrolytic recovery; the sliding connection of the leaching component facilitates its position adjustment or removal for cleaning and maintenance according to actual needs, ensuring the flexibility of operation and the durability of the equipment; the stirring component promotes the full contact and reaction between the metal ions and the leaching agent by continuously stirring the lithium battery fragments in the leachate, accelerates the leaching process, and improves the leaching efficiency. The stirring component can also prevent the problem of lithium batteries accumulating at the bottom and insufficient contact with the liquid when the lithium battery leachate is subjected to acid leaching or alkaline leaching.

[0049] The utility model provides a first recovery component of a device for recovering metal from lithium battery leachate by electrolysis, which is used to collect liquid generated during the leaching process; the electrolysis component is used to reduce metal ions in the leachate into metal elements, thereby realizing metal recovery; during the electrolysis process, by controlling parameters such as current, voltage, and electrolyte concentration and temperature, the electrolysis efficiency can be optimized, and the recovery rate and purity of the metal can be improved; the second recovery component is located at the bottom of the electrolysis component, and is used to collect metal products obtained after electrolysis; the component is detachable from the recovery box, which makes the collection of metal products simple and quick, and also facilitates the cleaning and replacement of the second recovery component, thereby ensuring the continuity and high efficiency of the entire recovery process. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the overall structure of the metal electrolysis recovery device in the lithium battery leachate of the utility model;

[0051] Figure 2 This is a schematic diagram of the structure of the feed assembly of the metal electrolysis recovery device in the lithium battery leachate of the utility model;

[0052] Figure 3 The utility model is a schematic diagram of the structure of the stirring component of the metal electrolysis recovery device in the lithium battery leachate.

[0053] In the figure: 100, recycling box body; 110, feeding assembly; 111, feeding port; 112, L-shaped feeding plate; 1121, horizontal plate; 1122, vertical plate; 113, telescopic rod; 114, pushing block; 115, first motor; 121, crushing roller; 122, liquid spraying head; 131, leaching tank; 132, sliding groove; 133, sliding plate; 134, first liquid outlet; 141, support rod; 142, slide rail; 143, limiting plate; 144, slider; 145, stirring shaft; 146, stirring blade; 151, first recycling box; 152, first screen; 153, second recycling box; 161, electrolytic cell; 162, diaphragm; 163, anode plate; 164, cathode plate; 171, third recycling box; 172, second screen. Detailed implementation manners

[0054] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0055] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0056] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0057] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0058] Refer toFigures 1-3 As shown, this embodiment provides a metal electrolysis recovery device in lithium battery leachate, including: a recovery box 100; a feeding assembly 110, located at the top of the recovery box 100; a crushing assembly, located inside the recovery box 100, and the crushing assembly is located below the feeding assembly 110; a leaching assembly, located on the side of the crushing assembly away from the feeding assembly 110, and the leaching assembly is slidably connected to the recovery box 100; a stirring assembly, located between the crushing assembly and the leaching assembly, and both ends of the stirring assembly are slidably connected to the inner wall of the recovery box 100; a first recovery assembly, located on the side of the leaching assembly away from the crushing assembly; an electrolysis assembly, located below the first recovery assembly, and the electrolysis assembly is located at the bottom of the recovery box 100; a second recovery assembly, located at the bottom of the electrolysis assembly, and the second recovery assembly is detachably connected to the recovery box 100.

[0059] It can be seen that before the lithium battery enters the recycling box 100, the lithium battery will be disassembled to remove the non-metallic parts such as the plastic packaging and metal shell on the outside of the lithium battery, so as to reduce the interference of impurities in the subsequent processing process and improve the purity and efficiency of metal recovery; the recycling box 100 is the basic structure of the entire device, which is used to provide stable support for the entire device; the crushing component is used to crush the lithium battery so that the metal components such as nickel and copper inside the lithium battery are exposed to facilitate the subsequent leaching and electrolytic recovery process; the leaching component is used to acid or alkaline leaching the crushed lithium battery The invention can effectively dissolve the metal ions in the lithium battery and ensure that the metal can fully enter the solution, thus creating favorable conditions for subsequent electrolytic recovery. The sliding connection of the leaching component facilitates its position adjustment or removal for cleaning and maintenance according to actual needs, thus ensuring the flexibility of operation and the durability of the equipment. The stirring component promotes the full contact and reaction between the metal ions and the leaching agent by continuously stirring the lithium battery fragments in the leaching solution, thus accelerating the leaching process and improving the leaching efficiency. The stirring component can also prevent the problem of lithium batteries accumulating at the bottom and not being in sufficient contact with the liquid when the lithium battery leaching solution is subjected to acid leaching or alkaline leaching.

[0060] It can be seen that the first recovery component is used to collect the liquid produced during the leaching process; the electrolysis component is used to reduce the metal ions in the leachate into metal elements, thereby realizing the recovery of the metal. During the electrolysis process, by controlling parameters such as current, voltage, and electrolyte concentration and temperature, the electrolysis efficiency can be optimized and the recovery rate and purity of the metal can be improved; the second recovery component is located at the bottom of the electrolysis component and is used to collect the metal products obtained after electrolysis. The detachability of this component and the recovery box 100 makes the collection of metal products simple and quick, and also facilitates the cleaning and replacement of the second recovery component, thereby ensuring the continuity and efficiency of the entire recovery process.

[0061] Specifically, the feeding assembly 110 includes: two feeding ports 111, both of which are opened at the top of the recycling box body 100 and are located on both sides of the recycling box body 100 respectively; two L-shaped feeding plates 112, which are symmetrically arranged along the horizontal direction. The L-shaped feeding plate 112 includes a horizontal plate 1121 and a vertical plate 1122. The vertical plate 1122 is arranged vertically at one end of the horizontal plate 1121, and the other end of the horizontal plate 1121 extends into the recycling box body 100; a telescopic rod 113, the axial direction of the telescopic rod 113 is parallel to the horizontal direction, the telescopic rod 113 is arranged on the top of the horizontal plate 1121, and one end of the telescopic rod 113 passes through the vertical plate 1122; a pushing block 114, which is connected to the other end of the telescopic rod 113; a first motor 115, the first motor 115 is fixed on the vertical plate 1122, and the output end of the first motor 115 is connected to one end of the telescopic rod 113.

[0062] It can be seen that the feeding ports 111 are used to introduce the pre-treated lithium batteries into the recycling box body 100 to ensure that the entire recycling process can be smoothly started. The setting of the two feeding ports 111 not only improves the feeding efficiency, but also can balance the material distribution in the recycling box body 100 to a certain extent and reduce the local processing pressure caused by concentrated feeding; the design of the L-shaped feeding plate 112 is ingenious. The horizontal plate 1121 part is convenient for the stable placement of the lithium batteries, while the vertical plate 1122 plays a guiding role to guide the lithium batteries to enter the recycling box body 100 along a predetermined trajectory, reducing the collision and damage of the lithium batteries during the feeding process; driven by the first motor 115, the telescopic rod 113 can drive the pushing block 114 to move, so as to push the lithium batteries placed on the horizontal plate 1121 into the recycling box body 100. This not only simplifies the feeding operation, but also ensures the stability and controllability of the feeding process.

[0063] Specifically, the crushing assembly includes: two crushing rollers 121, which are arranged below the L-shaped feeding plate 112; several liquid spraying heads 122, which are arranged on the inner side wall of the recycling box body 100, and the liquid spraying heads 122 are located on the side of the crushing roller 121 close to the L-shaped feeding plate 112.

[0064] It can be understood that the crushing roller 121, as the main part of the crushing component, usually has its surface covered with wear-resistant and sharp blades or tooth-like structures to ensure that the lithium batteries entering the recycling box 100 can be efficiently crushed into small pieces; the two crushing rollers 121 rotate towards each other, and through their close cooperation, the crushing of the lithium batteries is achieved. This not only improves the crushing efficiency but also ensures the uniformity and smallness of the lithium battery fragments after crushing, creating favorable conditions for the subsequent leaching process; the liquid spray heads 122 are evenly distributed on the inner sidewall of the recycling box 100, close to the crushing roller 121, and can spray an appropriate amount of liquid in a timely manner during the crushing process, further optimizing the crushing effect and improving the efficiency and stability of the entire recycling process.

[0065] Specifically, the leaching component includes: a leaching tank 131, located inside the recycling box 100, and the leaching tank 131 is located below the crushing roller 121. Slide plates 133 are symmetrically arranged on both sides of the leaching tank 131, and a first liquid outlet 134 is opened at the bottom of the leaching tank 131; a chute 132, located on both sides of the leaching tank 131, and the chute 132 is opened on the inner sidewall of the recycling box 100, and the chute 132 is in sliding fit with the slide plate 133.

[0066] It can be understood that the leaching tank 131 can be filled with a specific leaching solution inside, and this leaching solution can effectively dissolve valuable metal elements in the lithium battery fragments, such as nickel, copper, etc., laying a foundation for subsequent resource recovery; the slide plates 133 symmetrically arranged on both sides of the leaching tank 131 cooperate with the chutes 132 on the inner sidewall of the recycling box 100, not only ensuring the stable position of the leaching tank 131 inside the recycling box 100 but also facilitating the disassembly, cleaning, or replacement of the leaching tank 131 when needed, enhancing the flexibility and maintainability of the equipment; during the leaching process, after being crushed by the crushing roller 121, the lithium battery fragments directly fall into the leaching tank 131 and come into full contact with the leaching solution. The first liquid outlet 134 opened at the bottom of the leaching tank 131 is used to discharge the leaching solution containing dissolved metal elements, realizing the efficient recovery of valuable metals.

[0067] Specifically, the stirring assembly includes: a support rod 141, which is horizontally arranged inside the recovery box body 100; a slide rail 142, which is vertically arranged on the inner side wall of the recovery box body 100, and limiting plates 143 are arranged at both ends of the slide rail 142; a slider 144, which is slidably matched with the slide rail 142, and the slider 144 is connected to the support rod 141; a stirring shaft 145, which is vertically arranged in the middle of the support rod 141, one end of the stirring shaft 145 is connected to the support rod 141, and the other end of the stirring shaft 145 faces the leaching tank 131; stirring blades 146, which are arranged staggeredly along the circumferential direction of the stirring shaft 145, and one end of the stirring blade 146 is connected to the stirring shaft 145; a second motor, which is arranged on the support rod 141, the second motor is provided with a protective shell, and the other end of the stirring shaft 145 extends into the protective shell and is connected to the output end of the second motor.

[0068] It can be seen that the support rod 141 stably spans inside the recovery box body 100, providing a solid support foundation for the entire stirring assembly; the slide rail 142 is vertically arranged along the inner side wall of the recovery box body 100, and the limiting plates 143 at both ends effectively prevent the slider 144 from accidentally derailing during the sliding process, ensuring the safe progress of the stirring operation; the close cooperation between the slider 144 and the slide rail 142 enables the stirring shaft 145 to flexibly adjust its position in the vertical direction to adapt to the stirring requirements at different heights; the stirring shaft 145 is vertically arranged in the middle of the support rod 141, one end is firmly connected to the support rod 141, and the other end faces the inside of the leaching tank 131, which enables the stirring shaft 145 to penetrate deep into the leaching solution and directly act on the mixture of lithium battery fragments and the leaching solution, achieving a more efficient stirring effect; the stirring blades 146 arranged staggeredly on the stirring shaft 145 are used to generate strong eddy currents and shear forces during rotation, promoting the full contact and reaction between the lithium battery fragments and the leaching solution in the mixture.

[0069] Specifically, the first recovery assembly includes: a first recovery box 151, which is located inside the recovery box body 100, and the first recovery box 151 is located on the side of the leaching tank 131 away from the crushing roller 121, and a second liquid outlet is opened at the bottom of the first recovery box 151; a first screen 152, which is inclinedly arranged on the top of the first recovery box 151, and both ends of the first screen 152 are respectively connected to both sides of the inner wall of the recovery box body 100, and a first through hole is arranged on the side of the recovery box body 100, and the bottom end of the first through hole is flush with the top end of the first screen 152.

[0070] Specifically, the first recovery assembly further includes: a second recovery box 153, which is arranged on the outer side wall of the recovery box body 100, and the second recovery box 153 is communicated with the first through hole.

[0071] It can be seen that the first recovery tank 151 is used to receive the mixed liquid flowing out of the leaching tank 131. After sufficient reaction in the leaching tank 131, the mixed liquid is rich in dissolved metal ions and some incompletely dissolved lithium battery fragments. These substances enter the first recovery tank 151 through the drain port at the bottom of the leaching tank 131. The first screen 152 is inclined and arranged at the top of the first recovery tank 151. This not only facilitates the natural sliding of large particle impurities in the mixed liquid to the lower end of the first screen 152 under the action of gravity, but also preliminarily separates the incompletely dissolved lithium battery fragments or other solid residues through its screening function. When the solid residues on the first screen 152 accumulate to a certain extent, they will naturally slide into the first through-hole and smoothly enter the second recovery tank 153. This not only avoids the pollution of the environment inside the recovery box body 100 by solid waste, but also facilitates subsequent centralized treatment and reuse, further improving the efficiency and environmental protection of resource recovery.

[0072] Specifically, the electrolysis assembly includes: an electrolytic cell 161, located at the bottom of the first recovery tank 151, and a third liquid outlet is opened at the bottom of the electrolytic cell 161; a diaphragm 162, arranged vertically inside the electrolytic cell 161, and the two sides of the diaphragm 162 divide the electrolytic cell 161 into an anode chamber and a cathode chamber; an anode plate 163 and a cathode plate 164, respectively located inside the anode chamber and the cathode chamber, and the anode plate 163 and the cathode plate 164 are relatively arranged on the inner side wall of the electrolytic cell 161.

[0073] Specifically, the second recovery assembly includes: two hydrocyclones, which are respectively arranged at the bottoms of the anode chamber and the cathode chamber; a third motor, and the output end of the third motor is connected to the hydrocyclone.

[0074] It can be seen that the electrolysis assembly further separates and purifies the metal ions in the mixed liquid by using the electrolysis principle; the third liquid outlet at the bottom of the electrolytic cell 161 facilitates the discharge and treatment of the electrolyte after electrolysis; the built-in diaphragm 162 divides the electrolytic cell 161 into an anode chamber and a cathode chamber, providing a necessary physical isolation for the electrolysis reaction and ensuring the smooth progress of the electrolysis process. The material and thickness of the diaphragm 162 can be adjusted according to the actual situation; the anode plate 163 and the cathode plate 164 are respectively placed on the inner side walls of the anode chamber and the cathode chamber, and their relative positions are also accurately calculated to ensure the uniform distribution of current in the electrolytic cell 161, thereby improving the electrolysis efficiency; during the electrolysis process, the anode plate 163 usually undergoes an oxidation reaction, while the cathode plate 164 undergoes a reduction reaction. Through these two reactions, the metal ions in the mixed liquid are deposited on the cathode (the cathode plate 164 is detachable), forming a metal single substance with higher purity, providing the possibility for subsequent resource reuse.

[0075] It can be seen that the cyclones in the second recycling component are respectively installed at the bottoms of the anode chamber and the cathode chamber and are connected to the output end of the third motor. The cyclones use the centrifugal force generated by rotation to further separate and purify the electrolyzed solution. Under the action of the cyclones, tiny particles and impurities in the solution are effectively removed, improving the purity of the electrolyte solution.

[0076] Specifically, the second recycling component includes: a third recycling tank 171 located at the bottom of the electrolytic cell 161; a second screen 172 horizontally arranged at the top of the third recycling tank 171, and the second screen 172 is detachably connected to the third recycling tank 171.

[0077] It can be seen that the third recycling tank 171 serves as a receiving container for the electrolyzed solution, and is used to collect the high-purity electrolyte solution after electrolysis and treatment by the cyclones. The choice of the bottom position ensures that the solution in the electrolytic cell 161 can flow smoothly in, avoiding any possible overflow or leakage. Moreover, the material of the third recycling tank 171 is selected to have good corrosion resistance and sealing properties to cope with the corrosive substances that may exist in the electrolyte solution. The second screen 172 is horizontally laid at the top of the third recycling tank 171, which can not only further filter but also facilitate disassembly and cleaning, ensuring the cleanliness inside the recycling tank and the purity of the electrolyte solution.

[0078] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A device for recovering metals from lithium battery leachate by electrolysis, characterized in that: include: Recycling boxes; A feeding assembly is located on the top of the recovery box; A crushing assembly is located inside the recovery box, and the crushing assembly is located below the feeding assembly; A leaching component is located at a side of the crushing component away from the feeding component, and the leaching component is slidably connected to the recovery box; A stirring assembly is located between the crushing assembly and the leaching assembly, and both ends of the stirring assembly are slidably connected to the inner wall of the recovery box; A first recovery component is located on a side of the leaching component away from the crushing component; An electrolytic component is located below the first recovery component, and the electrolytic component is located at the bottom of the recovery box; The second recovery component is located at the bottom of the electrolytic component, and the second recovery component is detachably connected to the recovery box.

2. The metal electrolysis recovery device in lithium battery leachate according to claim 1, characterized in that: The feed assembly comprises: There are two feed inlets, both of which are opened on the top of the recovery box and are respectively located on both sides of the recovery box; There are two L-shaped feed plates, the two L-shaped feed plates are symmetrically arranged in the horizontal direction, the L-shaped feed plates include a horizontal plate and a vertical plate, the vertical plate is arranged at one end of the horizontal plate in the vertical direction, and the other end of the horizontal plate extends into the interior of the recovery box; A telescopic rod, the axial direction of which is arranged parallel to the horizontal direction, the telescopic rod is arranged on the top of the horizontal plate, and one end of the telescopic rod passes through the vertical plate; A pushing block connected to the other end of the telescopic rod; A first motor is fixed on the vertical plate, and an output end of the first motor is connected to one end of the telescopic rod.

3. The metal electrolysis recovery device in lithium battery leachate according to claim 2, characterized in that: The crushing assembly comprises: There are two crushing rollers, and the two crushing rollers are arranged below the L-shaped feeding plate; The liquid spraying heads are provided with a plurality of liquid spraying heads, wherein the plurality of liquid spraying heads are arranged on the inner side wall of the recovery box body, and the liquid spraying heads are located on the side of the crushing roller close to the L-shaped feed plate.

4. The device for recovering metal from lithium battery leachate by electrolysis according to claim 3, characterized in that: The leaching assembly comprises: A leaching box is located inside the recovery box and below the crushing roller. Slide plates are symmetrically arranged on both sides of the leaching box. A first liquid outlet is provided at the bottom of the leaching box. The slide grooves are located on both sides of the leaching box, and the slide grooves are opened on the inner side walls of the recovery box body, and the slide grooves are slidably matched with the slide plate.

5. The device for recovering metal from lithium battery leachate by electrolysis according to claim 4, characterized in that: The stirring assembly comprises: A support rod is horizontally arranged inside the recovery box; A slide rail is arranged on the inner wall of the recovery box along the vertical direction, and limit plates are arranged at both ends of the slide rail; A slider, the slider is slidably matched with the slide rail, and the slider is connected to the support rod; A stirring shaft is vertically arranged at the middle of the support rod, one end of the stirring shaft is connected to the support rod, and the other end of the stirring shaft faces the leaching tank; Stirring blades are staggered along the circumferential direction of the stirring shaft, and one end of the stirring blades is connected to the stirring shaft; The second motor is arranged on the support rod, the outer cover of the second motor is provided with a protective shell, the other end of the stirring shaft extends into the protective shell and is connected to the output end of the second motor.

6. The device for recovering metals from lithium battery leachate by electrolysis according to claim 5, characterized in that: The first recycling component comprises: A first recovery box is located inside the recovery box body, and the first recovery box is located on a side of the leaching box away from the crushing roller, and a second liquid outlet is provided at the bottom of the first recovery box; The first screen is tilted on the top of the first recovery box, and the two ends of the first screen are respectively connected to the two sides of the inner wall of the recovery box, and the side of the recovery box is provided with a first through hole, and the bottom end of the first through hole is flush with the top end of the first screen.

7. The device for recovering metals from lithium battery leachate by electrolysis according to claim 6, characterized in that: The first recovery component also includes: The second recovery box is arranged on the outer side wall of the recovery box body, and the second recovery box is communicated with the first through hole.

8. The device for recovering metals from lithium battery leachate by electrolysis according to claim 7, characterized in that: The electrolytic assembly comprises: An electrolytic cell, located at the bottom of the first recovery box, and a third liquid outlet is provided at the bottom of the electrolytic cell; A diaphragm is vertically arranged inside the electrolytic cell, and two sides of the diaphragm separate the electrolytic cell into an anode chamber and a cathode chamber; The anode plate and the cathode plate are respectively located inside the anode chamber and inside the cathode chamber, and the anode plate and the cathode plate are arranged on the inner side wall of the electrolytic cell opposite to each other.

9. The device for recovering metals from lithium battery leachate by electrolysis according to claim 8, characterized in that: The second recovery component comprises: There are two cyclones, and the two cyclones are respectively arranged at the bottom of the anode chamber and the cathode chamber; A third motor, wherein an output end of the third motor is connected to the cyclone.

10. The device for recovering metals from lithium battery leachate by electrolysis according to claim 9, characterized in that: The second recovery component comprises: A third recovery box, located at the bottom of the electrolytic cell; The second screen is horizontally arranged on the top of the third recovery box, and the second screen is detachably connected to the third recovery box.

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