Leaching device for recovering valuable metals from waste lithium ion batteries

Abstract

The utility model discloses a leaching device for recovering valuable metals from waste lithium ion batteries, and relates to the technical field of waste lithium ion battery treatment. The device comprises a leaching barrel, feeding assemblies are symmetrically arranged on the upper portion of the peripheral side wall of the leaching barrel, each feeding assembly comprises a discharging valve connected to the side wall of a connecting pipe, the lower end of each connecting pipe is communicated with the interior of the leaching barrel, and a box cover abuts against the upper surface of a material box communicated with the upper end face of each connecting pipe; a hydraulic cylinder is connected to the side wall of a cylinder base connected to the corner of the side wall of the material box, a lug base is connected to the end of a hydraulic rod connected to the end of the hydraulic cylinder, and the lug base is connected to the corner of the side wall of the box cover. And a discharging assembly is arranged on the lower surface of the leaching barrel. The feeding assembly is arranged, the operation amount of workers during feeding of waste lithium ion battery waste materials and reaction solutions is reduced, the discharging assembly is arranged, the operation steps are simplified, and discharging operation of valuable metal is achieved more thoroughly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of waste lithium ion battery processing technology, especially relates to a kind of leaching device for recovering valuable metal from waste lithium ion battery. BACKGROUND

[0002] Lithium ion battery has the advantages of high energy density, high output voltage, long cycle life, good safety performance, low self-discharge rate and environmental protection performance, so it is favored by people. But lithium ion battery also has service life. When lithium ion battery is used to a certain period, the storage capacity is greatly reduced, and lithium ion battery needs to be replaced. To reduce the waste of materials in lithium ion battery, valuable metals in waste lithium ion battery are leached in leaching device, to realize the recycling of valuable metals in waste lithium ion battery.

[0003] After searching, a kind of lithium element leaching device for recycling waste lithium battery is disclosed in the patent literature with patent announcement number CN222007959U. It includes support frame, placing cylinder, filter assembly and valve, etc. The support frame is connected with the placing cylinder at the upper part, the filter assembly is placed in the placing cylinder, and the valve is connected at the lower side of the middle part of the placing cylinder. The driving assembly is matched with the upper stirring assembly and the lower stirring assembly, so that the upper stirring assembly and the lower stirring assembly are rotated oppositely, the reaction solution in the placing cylinder and the lithium battery waste are fully mixed and reacted, and the effect of lithium element leaching is improved.

[0004] The lifting assembly is connected with the connecting frame on the upper side of the middle part, the driving motor is connected with the middle part of the connecting frame, the output shaft of the driving motor is rotatably connected with the middle part of the lifting assembly, the lifting assembly is started, so that the lifting assembly slides upward to the top of the placing cylinder, the lifting assembly is rotated to the right along the front part of the lifting assembly, the lithium battery waste is placed on the filter assembly in the placing cylinder, and sufficient reaction solution is poured into the placing cylinder, then the lifting assembly is reversely slid to reset, but the lifting assembly needs to be repeatedly started to realize multiple feeding of the lithium battery waste and the reaction solution, so that the workload is increased, the supporting frame is connected with the placing cylinder for placing the lithium battery waste, the filter assembly for leaching and filtering the waste lithium battery is placed in the placing cylinder, the filter assembly comprises a filter plate and a connecting rod, the filter plate is placed in the placing cylinder, a plurality of connecting rods are connected with the upper side of the edge of the filter plate, a valve is connected with the lower side of the middle part of the placing cylinder, the lifting assembly is started, so that the lifting assembly slides upward to open, then the filter assembly is slid upward to be taken out of the placing cylinder, so that the filter assembly drives the lithium battery waste in the placing cylinder to be taken out upward, but the discharging operation steps of the valuable metal are complex, the operation amount of the worker is increased, and the valuable metal cannot be discharged for treatment, so that the valuable metal is wasted.

[0005] Therefore, the leaching device for recovering valuable metals from waste lithium ion batteries is provided to solve the above problems. The utility model discloses a leaching device for recovering valuable metals from waste lithium ion batteries

[0006] The utility model discloses a leaching device for recovering valuable metals from waste lithium ion batteries, which effectively reduces the number of opening and closing the box cover, reduces the workload of feeding the waste lithium ion battery waste and the reaction solution, and simplifies the operation steps, which is conducive to more thoroughly cleaning the valuable metals on the positive plate and the negative plate.

[0007] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0008] The utility model discloses a kind of leaching devices for recycling valuable metals from waste lithium-ion batteries, including leaching cylinder, the upper part of the peripheral side wall of leaching cylinder is symmetrically provided with feeding assembly, the feeding assembly includes discharge valve connected on the side wall of connecting pipe, the lower end of the connecting pipe is communicated with the inside of leaching cylinder, the upper surface of the material box communicated on the upper end surface of the connecting pipe is provided with box cover, the side wall of the cylinder seat connected in the corner of the side wall of the material box is connected with hydraulic cylinder, the end of the hydraulic cylinder connected with hydraulic rod is connected with ear seat, the ear seat is connected in the corner of the side wall of box cover;Discharge assembly is provided on the lower surface of the leaching cylinder, the discharge assembly includes forward plate and reverse plate symmetrically provided on the lower surface of leaching cylinder, the side wall corner of the forward plate and reverse plate is all fixedly connected with sleeve seat, the inside of the ball nut provided in the inside of sleeve seat is provided with lead screw, the slide rail provided on the outside of lead screw is arranged on the outside wall of leaching cylinder, one end of lead screw is connected with driving motor, the end surface of driving motor is connected with rack connected on one side wall of slide rail, the lever seat rotationally connected on the peripheral side wall of lead screw is connected on the other side wall of slide rail, the other side wall corner of the forward plate and reverse plate is all fixedly connected with slide seat, the outside of guide shaft sleeved in the inside of slide seat is provided with guide rail, the guide rail is arranged on the outside wall of leaching cylinder, the shaft seat connected on both ends of guide shaft is connected on the side wall of guide rail.

[0009] The utility model further is provided with, the upper surface of the leaching cylinder is provided with cylinder cover, the upper end of the screw rod connected in annular array on the upper surface of the leaching cylinder penetrates the lower surface of cylinder cover, the limiting nut threadedly connected on the peripheral side wall of screw rod is provided on the upper surface of cylinder cover, the side wall of liquid outlet pipe communicated on the lower part of the outside wall of leaching cylinder is connected with valve.

[0010] The utility model further is provided with, the inner top of the rack connected in the middle of the upper surface of cylinder cover is connected with stirring motor, the lower end of stirring shaft connected on the lower end surface of stirring motor penetrates the upper surface of cylinder cover, the forward stirring rod connected on the peripheral side wall of stirring shaft is located in the inside of leaching cylinder.

[0011] The utility model further is provided with, the upper end of hollow shaft sleeved on the peripheral side wall of stirring shaft is rotationally connected with the middle part of cylinder cover, the reverse stirring rod connected on the peripheral side wall of hollow shaft is located in the inside of leaching cylinder, the reverse stirring rod is located above the forward stirring rod.

[0012] The utility model further sets up, the side engagement connection of main gear that the peripheral lateral wall of stirring shaft is sleeved with has from gear, the lower end rotation connection of the connecting shaft that the inside of from gear is sleeved is established on the upper surface of cylinder cover, the driving wheel that the peripheral lateral wall of connecting shaft is sleeved with is located below from gear, the driving wheel that the side of driving wheel is provided with is sleeved on the peripheral lateral wall of hollow shaft, and driving wheel is connected with driving wheel through transmission belt transmission.

[0013] The utility model further sets up, the upper surface of material box is connected symmetrically, and the slide bar is T-shaped, the lower surface of box cover is connected symmetrically, and the slide groove is T-shaped, the slide groove is connected in the outside of slide bar.

[0014] The utility model further sets up, the side wall of positive plate and reverse plate is connected with the support symmetrically, the lower end of support is connected with the gyro wheel.

[0015] The utility model further sets up, the side wall of positive plate near reverse plate is connected with the plug rod equidistantly, the side wall of reverse plate near positive plate is connected with the plug hole equidistantly, and the plug rod is inserted in the inside of plug hole.

[0016] The utility model further sets up, the upper surface of bottom plate that the lower part of leaching cylinder is provided with is connected with the support column, the support column is connected on the lower surface of guide rail and slide rail, the lower surface of bottom plate is connected with self-locking universal wheel, the side wall of guide rail and slide rail is connected with the ear plate symmetrically, and the ear plate is connected on the outside wall of leaching cylinder.

[0017] The utility model has the advantages of the following:

[0018] 1, the utility model discloses a feeding assembly is set up, and the hydraulic cylinder is started, and when the hydraulic rod stretches, the box cover is opened, and the waste lithium ion battery waste material and reaction solution are guided into the inside of different material box, when the hydraulic rod contracts, the box cover is closed, and the discharge valve is opened, and the waste lithium ion battery waste material and reaction solution in the inside of material box enter the inside of leaching cylinder, realize the feeding operation of waste lithium ion battery waste material and reaction solution, and prestore waste lithium ion battery waste material and reaction solution in the inside of different material box, reduce the number of times of opening and closing the box cover, reduce the operation step, and reduce the operation amount of staff.

[0019] 2, the utility model discloses a discharge assembly is set up, and the driving motor is started, and the screw rod rotates, and the positive plate and reverse plate move back to back, and the positive plate and reverse plate gradually open, and the leaching cylinder exerts external force on the valuable metal on the positive plate and reverse plate, realizes the discharge of valuable metal, simplifies the operation step, and it is convenient to clean valuable metal more thoroughly. ACCURACY OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed for the embodiment description.

[0021] Figure 1 It is a perspective view of a leaching device for recovering valuable metals from waste lithium ion batteries;

[0022] Figure 2 It is Figure 1 It is a structural enlarged view of A in the middle;

[0023] Figure 3 It is a connection diagram of the stirring motor, the box cover, the stirring shaft and the hollow shaft;

[0024] Figure 4 It is an exploded view of the discharging assembly;

[0025] Figure 5 It is an exploded view of the forward plate and the reverse plate;

[0026] Figure 6 It is a structural exploded view of the feeding assembly.

[0027] In the drawings, the component list represented by each reference numeral is as follows:

[0028] 1-leaching cylinder, 101-cylinder cover, 101a-screw, 101b-limiting nut, 102-stirring motor, 102a-machine base, 103-stirring shaft, 103a-main gear, 103b-forward stirring rod, 104-hollow shaft, 104a-driven wheel, 104b-reverse stirring rod, 105-transmission belt, 106-connection shaft, 106a-follower gear, 106b-driving wheel, 107-liquid outlet pipe, 107a-valve, 2-feeding assembly, 201-material box, 201a-connection pipe, 201b-discharging valve, 201c-sliding rod, 202-box cover, 202a-slotted guide, 202b-ear seat, 203-hydraulic cylinder, 203a-hydraulic rod, 203b-cylinder base, 3-discharging assembly, 301-forward plate, 301a-leg, 301b-roller, 301c-sliding seat, 301d-inserting rod, 302-guide rail, 303-sliding rail, 303a-ear plate, 304-bottom plate, 304a-self-locking universal wheel, 304b-support column, 305-reverse plate, 305a-insertion hole, 306-driving motor, 306a-machine frame, 306b-screw, 306c-rod base, 307-guide shaft, 307a-shaft base, 308-sleeve base, 308a-ball nut. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0030] Embodiment 1

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 The utility model discloses a kind of leaching devices for recycling valuable metals from waste lithium ion batteries, including leaching cylinder 1, cylinder cover 101, stirring motor 102, stirring shaft 103, hollow shaft 104, transmission belt 105, connecting shaft 106 and liquid outlet pipe 107, stirring motor 102 is controlled, the rotation of stirring shaft 103 and hollow shaft 104 in different directions is different, the lithium ion battery waste material and reaction solution inside leaching cylinder 1 are stirred in different directions, so that valuable metal in lithium ion battery waste material is fully reacted and leached out, improve valuable metal leaching efficiency in lithium ion battery waste material, the waste liquid inside leaching cylinder 1 is discharged by the liquid outlet pipe 107 for setting, realize the separation between waste liquid and valuable metal;

[0032] Specifically, the upper surface of the leaching cylinder 1 is connected with a screw rod 101a, the upper end of the screw rod 101a penetrates the lower surface of the cylinder cover 101, and a limiting nut 101b is threadedly connected to the peripheral sidewall of the screw rod 101a, the limiting nut 101b is arranged on the upper surface of the cylinder cover 101, a machine base 102a is connected to the upper surface of the cylinder cover 101, and the inner top of the machine base 102a is connected with a stirring motor 102, the lower end surface of the stirring motor 102 is connected with a stirring shaft 103, a main gear 103a is sleeved on the peripheral sidewall of the stirring shaft 103, and the lower end of the stirring shaft 103 extends to the inside of the leaching cylinder 1 through the upper surface of the cylinder cover 101, a forward stirring rod 103b is connected to the lower part of the peripheral sidewall of the stirring shaft 103, a hollow shaft 104 is sleeved on the peripheral sidewall of the stirring shaft 103, and the upper end of the hollow shaft 104 is rotatably connected to the middle part of the cylinder cover 101, a driven wheel 104a sleeved on the peripheral sidewall of the hollow shaft 104 is located above the cylinder cover 101, a reverse stirring rod 104b is connected to the lower part of the peripheral sidewall of the hollow shaft 104, and the reverse stirring rod 104b is located above the forward stirring rod 103b, the lower end of a connecting shaft 106 is rotatably connected to the upper surface of the cylinder cover 101, a driven gear 106a and a driving wheel 106b are sleeved on the peripheral sidewall of the connecting shaft 106, the driven gear 106a is meshingly connected with the main gear 103a, the driving wheel 106b is drivingly connected with the driven wheel 104a through a transmission belt 105, the upper end of a liquid outlet pipe 107 is in communication with the inside of the leaching cylinder 1, a filter plate is arranged at the inner upper end of the liquid outlet pipe 107, and a valve 107a is connected to the sidewall of the liquid outlet pipe 107.

[0033] Further, the screw rod 101a is arranged in an annular array, and the machine base 102a is in a U-shaped form.

[0034] The operation process of the embodiment is as follows: the staff starts the stirring motor 102, the stirring shaft 103 rotates, the main gear 103a rotates, the forward stirring rod 103b rotates, the main gear 103a drives the driven gear 106a to rotate, the connecting shaft 106 rotates, the driving wheel 106b rotates, the transmission belt 105 drives the driven wheel 104a to rotate, the hollow shaft 104 rotates, the reverse stirring rod 104b rotates, the lithium ion battery waste and the reaction solution inside the leaching cylinder 1 are stirred in different directions, the valuable metals in the lithium ion battery waste are fully reacted and leached, after the leaching of the valuable metals in the lithium ion battery waste is completed, the stirring motor 102 is turned off, the valve 107a is opened, the waste liquid inside the leaching cylinder 1 is discharged through the liquid outlet pipe 107, and the leached valuable metals remain inside the leaching cylinder 1.

[0035] Embodiment 2

[0036] Please refer to Figure 1 and Figure 6 On the basis of the specific embodiment one, the feeding assembly 2 is provided, which comprises a tank 201, a connecting pipe 201a, a discharge valve 201b, a sliding rod 201c, a tank cover 202, an ear seat 202b, a hydraulic cylinder 203, a hydraulic rod 203a and a cylinder seat 203b. The hydraulic cylinder 203 is controlled to adjust the position of the tank cover 202, realize the opening and closing of the tank cover 202, realize the addition of lithium ion battery waste and reaction solution, control the discharge valve 201b to adjust whether the lithium ion battery waste and the reaction solution are fed, and prestore the lithium ion battery waste and the reaction solution in the inside of different tanks 201, thereby reducing the number of opening and closing of the tank cover 202, reducing the operation steps of feeding the lithium ion battery waste and the reaction solution, and reducing the operation amount of the staff.

[0037] Specifically, the lower surface of the tank 201 is communicated with the connecting pipe 201a, the lower end of the connecting pipe 201a is communicated with the inside of the leaching cylinder 1, the side wall of the connecting pipe 201a is connected with the discharge valve 201b, the upper surface of the tank 201 is connected with the sliding rod 201c, the tank cover 202 is arranged on the upper surface of the tank 201, the lower surface of the tank cover 202 is provided with a sliding groove 202a, the sliding groove 202a is slidingly connected to the outside of the sliding rod 201c, the ear seat 202b is connected to the corner of the side wall of the tank cover 202, the cylinder seat 203b is connected to the corner of the side wall of the tank 201, the side wall of the cylinder seat 203b is connected with the hydraulic cylinder 203, the end of the hydraulic cylinder 203 is connected with the hydraulic rod 203a, and the end of the hydraulic rod 203a away from the hydraulic cylinder 203 is connected to the side wall of the ear seat 202b.

[0038] Further, the two slide rods 201c are symmetrically arranged, and the slide rod 201c is T-shaped, the two slide grooves 202a are symmetrically arranged, and the slide groove 202a is T-shaped, the two material boxes 201 are symmetrically arranged, and the two connecting pipes 201a are symmetrically arranged;

[0039] The operation process of the embodiment is as follows: the worker starts the hydraulic cylinder 203, when the hydraulic rod 203a is stretched, the slide groove 202a slides along the slide rod 201c, the box cover 202 is gradually opened, and the lithium ion battery waste and the reaction solution are introduced into the inside of the different material boxes 201; when the hydraulic rod 203a is retracted, the box cover 202 is gradually closed, the discharge valve 201b is opened, and the lithium ion battery waste and the reaction solution in the inside of the material box 201 enter the inside of the leaching cylinder 1 through the connecting pipe 201a; when the worker closes the discharge valve 201b, the lithium ion battery waste and the reaction solution in the inside of the material box 201 are blocked from entering the inside of the leaching cylinder 1.

[0040] Embodiment 3

[0041] Please refer to Figure 1 , Figure 4 and Figure 5 , on the basis of the specific embodiment one and the specific embodiment two, the discharge assembly 3 is provided, the discharge assembly 3 includes the forward plate 301, the guide rail 302, the slide rail 303, the bottom plate 304, the reverse plate 305, the driving motor 306, the lead screw 306b, the sleeve 308 and the ball nut 308a, the driving motor 306 is controlled to make the forward plate 301 and the reverse plate 305 move in opposite directions, the forward plate 301 and the reverse plate 305 are opened, and the inside wall of the leaching cylinder 1 applies a pushing force to the valuable metals on the forward plate 301 and the reverse plate 305, which makes the valuable metal discharging operation more convenient and thorough, simplifies the valuable metal discharging steps, and reduces the operation amount of the worker;

[0042] Specifically, the forward plate 301 and the reverse plate 305 are symmetrically arranged on the lower surface of the leaching cylinder 1, the side wall close to the reverse plate 305 of the forward plate 301 is connected with a plug rod 301d, the side wall close to the forward plate 301 of the reverse plate 305 is provided with a plug hole 305a, the plug rod 301d is inserted into the plug hole 305a, the side wall of the forward plate 301 and the reverse plate 305 is fixedly connected with a sleeve seat 308, the inside of the sleeve seat 308 is provided with a ball nut 308a, the other side wall of the forward plate 301 and the reverse plate 305 is fixedly connected with a sliding seat 301c, the lug plate 303a connected on the side wall of the sliding rail 303 is connected on the outer side wall of the leaching cylinder 1, the sleeve seat 308 is slidingly connected in the sliding rail 303, the screw rod 306b is arranged in the ball nut 308a, the end of the screw rod 306b is connected with a driving motor 306, the end surface of the driving motor 306 is connected with a rack 306a connected on one side wall of the sliding rail 303, the lug plate 303a connected on the side wall of the guide rail 302 is connected on the outer side wall of the leaching cylinder 1, the sliding seat 301c is slidingly connected in the guide rail 302, the guide shaft 307 is sleeved in the sliding seat 301c, the two ends of the guide shaft 307 are connected with an axle seat 307a connected on the side wall of the guide rail 302, the side wall of the forward plate 301 and the reverse plate 305 is connected with a supporting leg 301a, the lower end of the supporting leg 301a is connected with a roller 301b, the bottom plate 304 is arranged below the leaching cylinder 1, the lower surface of the bottom plate 304 is connected with a self-locking universal wheel 304a, the upper surface of the bottom plate 304 is connected with a supporting column 304b, the upper end of the supporting column 304b is connected on the lower surface of the guide rail 302 and the sliding rail 303;

[0043] Further, the supporting legs 301a are arranged in a rectangular array, the plug rods 301d are arranged at equal intervals, the self-locking universal wheels 304a are arranged in a rectangular array, the supporting columns 304b are arranged in a rectangular array, and the plug holes 305a are arranged at equal intervals;

[0044] The operation process of the embodiment is as follows: the staff places the material collecting frame on the upper surface of the bottom plate 304, starts the driving motor 306, the screw rod 306b rotates, the two ball nuts 308a move away from each other, the two sleeve seats 308 move away from each other in the sliding rail 303, the two sliding seats 301c move away from each other in the guide rail 302, the rollers 301b move, the forward plate 301 and the reverse plate 305 move away from each other, the inner side wall of the leaching cylinder 1 applies a pushing force to the valuable metals on the forward plate 301 and the reverse plate 305, and the valuable metals on the forward plate 301 and the reverse plate 305 fall into the inside of the material collecting frame; when the two ball nuts 308a move towards each other, the plug rod 301d is inserted into the plug hole 305a, and the forward plate 301 and the reverse plate 305 are closed.

[0045] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific feature, structure, material or characteristic described can be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A leaching device for recovering valuable metals from spent lithium-ion batteries, comprising a leaching cylinder (1), characterized in that: The upper part of the circumferential wall of the leaching cylinder (1) is symmetrically provided with an upper feeding assembly (2), which comprises a discharge valve (201b) connected to the side wall of a connecting pipe (201a), the lower end of the connecting pipe (201a) communicates with the inside of the leaching cylinder (1), the upper end face of the connecting pipe (201a) is communicated with the upper surface of a material box (201), the upper surface of the material box (201) is provided with a box cover (202), the side wall of the cylinder seat (203b) connected to the corner of the side wall of the material box (201) is connected with a hydraulic cylinder (203), the end of the hydraulic cylinder (203) is connected with a hydraulic rod (203a), the end of the hydraulic rod (203a) is connected with an ear seat (202b), the ear seat (202b) is connected to the corner of the side wall of the box cover (202); The lower surface of the leaching cylinder (1) is provided with a discharge assembly (3), which comprises a forward plate (301) and a reverse plate (305) symmetrically provided on the lower surface of the leaching cylinder (1), one side wall corner of the forward plate (301) and the reverse plate (305) is fixedly connected with a sleeve seat (308), the inside of the ball nut (308a) provided in the sleeve seat (308) is provided with a lead screw (306b), the outer side of the lead screw (306b) is provided with a sliding rail (303) arranged on the outer side wall of the leaching cylinder (1), one end of the lead screw (306b) is connected with a driving motor (306), the end face of the driving motor (306) is connected with a rack (306a) connected to one side wall of the sliding rail (303), the circumferential wall of the lead screw (306b) is rotatably connected with a lever seat (306c) connected to the other side wall of the sliding rail (303), the other side wall corner of the forward plate (301) and the reverse plate (305) is fixedly connected with a sliding seat (301c), the outer side of the guide shaft (307) sleeved in the sliding seat (301c) is provided with a guide rail (302), the guide rail (302) is arranged on the outer side wall of the leaching cylinder (1), both ends of the guide shaft (307) are connected with an axle seat (307a) connected to the side wall of the guide rail (302).

2. The leaching device for recovering valuable metals from waste lithium-ion batteries according to claim 1, characterized in that: The upper surface of the leaching cylinder (1) is provided with a cylinder cover (101), the upper ends of the screw rods (101a) arranged in an annular array on the upper surface of the leaching cylinder (1) penetrate the lower surface of the cylinder cover (101), the limit nuts (101b) threadedly connected to the circumferential wall of the screw rods (101a) are provided on the upper surface of the cylinder cover (101), the side wall of the liquid outlet pipe (107) communicated with the lower part of the outer side wall of the leaching cylinder (1) is connected with a valve (107a).

3. The leaching device for recovering valuable metals from waste lithium-ion batteries according to claim 2, characterized in that: The inner top of the machine base (102a) connected to the middle part of the upper surface of the cylinder cover (101) is connected with a stirring motor (102), the lower end of the stirring shaft (103) connected to the lower end face of the stirring motor (102) penetrates the upper surface of the cylinder cover (101), the forward stirring rod (103b) connected to the circumferential wall of the stirring shaft (103) is located in the inside of the leaching cylinder (1).

4. The leaching device for recovering valuable metals from waste lithium-ion batteries according to claim 3, characterized in that: The upper end of the hollow shaft (104) sleeved on the circumferential side wall of the stirring shaft (103) is rotationally connected to the middle part of the barrel cover (101), and the reverse stirring rod (104b) connected to the circumferential side wall of the hollow shaft (104) is located inside the leaching barrel (1) and above the forward stirring rod (103b).

5. The leaching device for recovering valuable metals from waste lithium-ion batteries according to claim 4, characterized in that: The side engagement connection of the main gear (103a) sleeved on the circumferential side wall of the stirring shaft (103) is provided with a slave gear (106a), the lower end of the connecting shaft (106) sleeved in the slave gear (106a) is rotationally connected to the upper surface of the barrel cover (101), the driving wheel (106b) sleeved on the circumferential side wall of the connecting shaft (106) is located below the slave gear (106a), the driven wheel (104a) provided on the side of the driving wheel (106b) is sleeved on the circumferential side wall of the hollow shaft (104), and the driven wheel (104a) and the driving wheel (106b) are drivingly connected through the transmission belt (105).

6. The leaching device for recovering valuable metals from waste lithium-ion batteries according to claim 1, characterized in that: The T-shaped slide rod (201c) symmetrically connected to the upper surface of the material box (201) is T-shaped, the T-shaped sliding groove (202a) symmetrically formed in the lower surface of the box cover (202) is T-shaped, and the sliding groove (202a) is slidingly connected to the outer side of the slide rod (201c).

7. The leaching device for recovering valuable metals from waste and old lithium ion batteries according to claim 1, characterized in that: The side walls of the forward plate (301) and the reverse plate (305) are symmetrically connected with the supporting legs (301a), and the lower ends of the supporting legs (301a) are connected with the rollers (301b).

8. The leaching device for recovering valuable metals from waste lithium-ion batteries according to claim 7, characterized in that: The side wall of the forward plate (301) close to the reverse plate (305) is connected with the insertion rods (301d) at equal intervals, the side wall of the reverse plate (305) close to the forward plate (301) is provided with the insertion holes (305a) at equal intervals, and the insertion rods (301d) are inserted into the insertion holes (305a).

9. The leaching device for recovering valuable metals from waste and old lithium ion batteries according to claim 1, characterized in that: The upper surface of the bottom plate (304) provided below the leaching barrel (1) is connected with the supporting columns (304b), the supporting columns (304b) are connected to the lower surfaces of the guide rails (302) and the sliding rails (303), the lower surface of the bottom plate (304) is connected with the self-locking universal wheels (304a), the side walls of the guide rails (302) and the sliding rails (303) are symmetrically connected with the ear plates (303a), and the ear plates (303a) are connected to the outer side wall of the leaching barrel (1).

Images