Metal extraction device for recycling waste lithium battery

Abstract

The utility model relates to the technical field of lithium battery recycling, and provides a metal extraction device for recycling waste lithium batteries, which comprises a bottom plate, a reaction cylinder is fixedly mounted at the center of the top of the bottom plate, and a magnetic separator is fixedly connected to the top of the reaction cylinder close to the center. According to the waste battery recycling device, firstly, the whole bottom plate is moved to a required position, then, lithium batteries needing to be recycled are put into the crushing assembly through the introduction plate, two crushing cylinders in the crushing assembly are utilized to crush the waste batteries, then, a magnetic separator is utilized to screen out metal substances, and then, required chemical liquid is put into one storage box; according to the metal extraction device for recycling the waste lithium battery, the first liquid pump is started, the needed chemical extraction liquid is pumped into the reaction cylinder through the first liquid pump, and then the screened metal fragments are put into the reaction cylinder for acid leaching or alkaline leaching operation, so that environment-friendly treatment on the waste liquid is facilitated, and the environment-friendly function of the metal extraction device for recycling the waste lithium battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, in particular to a metal extraction device for recycling waste lithium batteries. Background Technique

[0002] Battery recycling refers to the act of collecting used batteries to prevent them from entering the ecosystem and causing harm to the environment. Waste batteries contain a large amount of heavy metals, as well as electrolyte solutions such as waste acid and waste alkali. If discarded randomly, the decaying batteries will pollute our water sources, erode the crops and land on which we depend for survival, and pose a huge threat to our living environment. Therefore, it is necessary to recycle and reuse the used waste batteries. On the one hand, it can prevent environmental pollution, and on the other hand, it can recycle the useful components in them and save resources.

[0003] In the prior art, such as Chinese Patent No.: CN209109700U, a waste lithium battery metal recycling device includes a feeding conveyor support, a machine box, and a discharging conveyor support. A PLC controller is installed on the left side of the front end face of the machine box. The first water pump and the second water pump are symmetrically installed on the left and right sides of the upper end face of the machine box. The first cleaning water storage bin, the ultrasonic cleaning bin, and the second cleaning water storage bin are sequentially arranged at the bottom inside the machine box from left to right. Ultrasonic generators are installed on the left and right inner side walls of the ultrasonic cleaning bin. A filter screen is installed at the lower part inside the first filter bin. A second filter bin is installed on the outer side wall at the position corresponding to the rear wall of the machine box of the second cleaning water storage bin. The utility model solves the problem that the waste lithium battery metal transmission and recycling device lacks a cleaning function, resulting in more impurities in the solution during subsequent electrolysis and affecting the extraction purity by setting the feeding conveyor support, the machine box, and the discharging conveyor support.

[0004] Although the above solution has the above advantages, its disadvantages are that traditional lithium battery metal extraction is carried out by chemical methods to extract valuable metals such as lithium, cobalt, nickel, etc. Common methods include using acid leaching or alkali leaching to extract metal substances. However, the waste liquid used in the acid leaching or alkali leaching process will pose a great threat to the ecological environment, and the waste liquid cannot be environmentally treated, reducing the environmental protection function of the metal extraction device for recycling waste lithium batteries. Moreover, precipitates may be generated during the neutralization process of the waste liquid, which is not convenient for filtering treatment, reducing the practicability of the metal extraction device for recycling waste lithium batteries. Content of the Utility Model

[0005] The purpose of the present utility model is to solve the problems existing in the prior art. In the traditional extraction of valuable metals from lithium batteries, such as lithium, cobalt, nickel, etc., common methods include using acid leaching or alkali leaching to extract metal substances. However, the waste liquid used in the acid leaching or alkali leaching process will pose a great threat to the ecological environment, and it is impossible to carry out environmental protection treatment on the waste liquid, which reduces the environmental protection function of the metal extraction device for recycling waste lithium batteries. Moreover, precipitates may be generated during the neutralization process of the waste liquid, which is not convenient for filtering treatment, reducing the practicability of the metal extraction device for recycling waste lithium batteries.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions: A metal extraction device for recycling waste lithium batteries: including a bottom plate, a reaction cylinder is fixedly installed at the center of the top of the bottom plate, a magnetic separator is fixedly connected near the center of the top of the reaction cylinder, a crushing assembly is fixedly connected to the top of the magnetic separator, two crushing cylinders are arranged on both sides of the inner wall of the crushing assembly, an introduction plate is fixedly connected to the top of the crushing assembly, a support plate is fixedly connected to the center of the bottom of the bottom plate, a servo motor is fixedly installed near the edge of the top of the support plate, the output end of the servo motor is fixedly connected to a main shaft, and a plurality of rotating rods are fixedly connected to the outer surface of the main shaft, and a plurality of round rods are fixedly connected to the outer surface of each of the plurality of rotating rods.

[0007] As a preferred implementation manner, storage boxes are fixedly installed on both sides near the edge of the top of the bottom plate, and a liquid pump I is fixedly installed on one side of the outer surface of each storage box.

[0008] The technical effect of adopting the above further solution is: Open the other liquid pump I, and use the other liquid pump I to pump the neutralizing agent in the other storage box into the reaction cylinder.

[0009] As a preferred implementation manner, the output end of the liquid pump I is connected to the inside of the reaction cylinder through a hose.

[0010] The technical effect of adopting the above further solution is: Use the liquid pump I to pump the required chemical extraction liquid into the reaction cylinder.

[0011] As a preferred implementation manner, support legs are fixedly connected to the four corners of the bottom of the bottom plate.

[0012] The technical effect of adopting the above further solution is: Use the support legs to facilitate providing a stable supporting force.

[0013] As a preferred implementation manner, a filter box body is fixedly connected to the center of the bottom of the bottom plate, and two filter mesh plates are slidably connected to the inside of the filter box body.

[0014] The technical effect of adopting the above further solution is that the liquid pump II pumps the waste liquid into the filtering box body, guides its liquid into the filtering box body, and filters the neutralized waste liquid through two filter mesh plates.

[0015] As a preferred embodiment, a liquid pump II is fixedly installed at the center of the bottom of the filtering box body. The output end of the liquid pump II is fixedly connected with a blanking pipe. The top of the filtering box body is connected to the bottom of the reaction cylinder through a valve near the edge.

[0016] The technical effect of adopting the above further solution is that the valve between the filtering box body and the reaction cylinder is opened, then the external power supply of the liquid pump II is turned on, and the liquid pump II is started by using the controller, so that the liquid pump II pumps the waste liquid into the filtering box body.

[0017] As a preferred embodiment, the input end of the blanking pipe is fixedly embedded inside the filtering box body.

[0018] The technical effect of adopting the above further solution is that it is convenient to discharge sewage through the blanking pipe.

[0019] As a preferred embodiment, a sealing door is connected to the outer surface of the filtering box body through a hinge.

[0020] The technical effect of adopting the above further solution is that it is convenient to replace the two filter mesh plates by using the sealing door.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0022] 1. In the present utility model, first, the bottom plate is integrally moved to the required position, and then the required lithium battery to be recycled is put into the crushing assembly through the introduction plate. The two crushing cylinders in the crushing assembly are used to crush the waste battery, and then the magnetic separator is used to screen out the metal substances. Then, the required chemical liquid is put into one of the storage boxes. Then, one of the liquid pumps I is turned on, and the liquid pump I is used to pump the required chemical extraction liquid into the reaction cylinder. Then, the screened metal fragments are put into the reaction cylinder for acid leaching or alkali leaching operations to extract the metal. After the extraction operation is completed, the staff first pours a sufficient amount of neutralizing agent into the other storage box, then turns on the other liquid pump I, and uses the other liquid pump I to pump the neutralizing agent in the other storage box into the reaction cylinder. Then, the external power supply of the servo motor is turned on, and the servo motor is started by using the controller. The output end of the servo motor starts to drive the main shaft to rotate. Through the continuous rotation of the main shaft, multiple rotating rods and multiple round rods are used for stirring, and the neutralizing agent and the waste liquid are fully stirred to neutralize the waste liquid inside the reaction cylinder, so as to achieve the purpose of facilitating the environmental protection treatment of the waste liquid and improving the environmental protection function of the metal extraction device for recycling waste lithium batteries.

[0023] 2. In this utility model, there are caked substances floating in the liquid after mixing. To facilitate the cleaning, the staff opens the valve between the filter box body and the reaction cylinder, then turns on the external power supply of the second liquid pump, starts the second liquid pump by using the controller, so that the second liquid pump pumps the waste liquid into the filter box body, guides the liquid into the filter box body, and filters the neutralized waste liquid through two filter mesh plates. At this time, the second liquid pump is already connected to the sewage discharge pipe. When it is necessary to replace the two filter mesh plates, the staff opens the sealed door and replaces the two filter mesh plates inside the filter box body, thereby facilitating the filtration process and improving the practicality of the metal extraction device for recycling waste lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 6 is a schematic diagram of the main structure of a metal extraction device for recycling waste lithium batteries provided by the present utility model;

[0025] Figure 2 FIG. 7 is a schematic bottom view of a metal extraction device for recycling waste lithium batteries provided by the present utility model;

[0026] Figure 3 FIG. 8 is a schematic diagram of the internal structure of a metal extraction device for recycling waste lithium batteries provided by the present utility model;

[0027] Figure 4 FIG. 9 is a schematic diagram of a metal extraction device for recycling waste lithium batteries provided by the present utility model Figure 3 and an enlarged schematic diagram of part A in FIG. 9.

[0028] LEGEND DESCRIPTION:

[0029] 1. Bottom plate; 101. Support leg; 102. Storage box; 103. First liquid pump; 104. Introduction plate; 105. Magnetic separator; 106. Reaction cylinder; 107. Support plate; 108. Servo motor; 109. Main shaft; 110. Rotating rod; 111. Round rod; 112. Crushing assembly; 113. Crushing cylinder; 114. Sealed door; 2. Filter box body; 201. Filter mesh plate; 202. Second liquid pump; 203. Feed pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Example 1, please refer to Figures 1-4, the present utility model provides a technical solution: a metal extraction device for recycling waste lithium batteries, including a bottom plate 1. At the center of the top of the bottom plate 1, a reaction cylinder 106 is fixedly installed. Near the center of the top of the reaction cylinder 106, a magnetic separator 105 is fixedly connected. At the top of the magnetic separator 105, a crushing assembly 112 is fixedly connected. On both sides of the inner wall of the crushing assembly 112, two crushing cylinders 113 are provided. At the top of the crushing assembly 112, an introduction plate 104 is fixedly connected. At the center of the bottom of the bottom plate 1, a support plate 107 is fixedly connected. Near the edge of the top of the support plate 107, a servo motor 108 is fixedly installed. The output end of the servo motor 108 is fixedly connected to a main shaft 109. On the outer surface of the main shaft 109, a plurality of rotating rods 110 are fixedly connected. On the outer surface of each of the plurality of rotating rods 110, a plurality of round rods 111 are fixedly connected. On both sides near the edge of the top of the bottom plate 1, storage boxes 102 are fixedly installed. On one side of the outer surface of the storage box 102, a first liquid pump 103 is fixedly installed. The output end of the first liquid pump 103 is connected to the inside of the reaction cylinder 106 through a hose. At the four corners of the bottom of the bottom plate 1, support legs 101 are fixedly connected.

[0032] In this embodiment, first, the entire bottom plate 1 is moved to the required position. Subsequently, the lithium batteries to be recycled are put into the crushing assembly 112 through the introduction plate 104. The two crushing cylinders 113 in the crushing assembly 112 are used to crush the waste batteries. Then, the magnetic separator 105 is used to screen out the metal substances. Subsequently, the required chemical liquid is put into one of the storage boxes 102. Then, one of the first liquid pumps 103 is turned on, and the required chemical extraction liquid is pumped into the reaction cylinder 106 by the first liquid pump 103. Subsequently, the screened metal fragments are put into the reaction cylinder 106 for acid leaching or alkali leaching operations to extract the metal. After the extraction operation is completed, the staff first pours a sufficient amount of neutralizer into the other storage box 102, and then turns on the other first liquid pump 103. The neutralizer in the other storage box 102 is pumped into the reaction cylinder 106 by the other first liquid pump 103. Then, the external power supply of the servo motor 108 is turned on, and the servo motor 108 is started by the controller. The output end of the servo motor 108 starts to drive the main shaft 109 to rotate. Through the continuous rotation of the main shaft 109, the plurality of rotating rods 110 and the plurality of round rods 111 stir, fully stirring the neutralizer and the waste liquid, and neutralizing the waste liquid inside the reaction cylinder 106, so as to facilitate the environmental protection treatment of the waste liquid and improve the environmental protection function of the metal extraction device for recycling waste lithium batteries.

[0033] Example 2, as Figures 1-4As shown in the figure, a filter box body 2 is fixedly connected to the bottom of the bottom plate 1 near the center. Two filter mesh plates 201 are slidably connected inside the filter box body 2. A second liquid pump 202 is fixedly installed at the center of the bottom of the filter box body 2. The output end of the second liquid pump 202 is fixedly connected to a blanking pipe 203. The top of the filter box body 2 near the edge is connected to the bottom of the reaction cylinder 106 through a valve. The input end of the blanking pipe 203 is fixedly embedded inside the filter box body 2. A sealing door 114 is connected to the outer surface of the filter box body 2 through a hinge.

[0034] In this embodiment, at this time, there are agglomerated substances floating in the mixed liquid. To facilitate the cleaning of them, the staff opens the valve between the filter box body 2 and the reaction cylinder 106, and then turns on the external power supply of the second liquid pump 202. The controller is used to start the second liquid pump 202, so that the second liquid pump 202 pumps the waste liquid into the filter box body 2 and introduces the liquid into the filter box body 2. The neutralized waste liquid is filtered by the two filter mesh plates 201. At this time, the second liquid pump 202 has been connected to the sewage pipe. When it is necessary to replace the two filter mesh plates 201, the staff opens the sealing door 114 and replaces the two filter mesh plates 201 inside the filter box body 2, so as to facilitate the filtration treatment and improve the practicability of the metal extraction device for recycling waste lithium batteries.

[0035] Working principle: When in use, first move the bottom plate 1 as a whole to the required position, then put the lithium battery to be recycled into the crushing assembly 112 through the introduction plate 104, and use the two crushing cylinders 113 in the crushing assembly 112 to crush the waste battery. Then use the magnetic separator 105 to screen out the metal substances. Subsequently, put the required chemical liquid into one of the storage tanks 102, then turn on one of the liquid pumps 103, and use the liquid pump 103 to pump the required chemical extraction liquid into the reaction cylinder 106. Subsequently, the screened metal fragments are put into the reaction cylinder 106 for acid leaching or alkali leaching operations to extract the metal. After the extraction operation is completed, the staff first pour a sufficient amount of neutralizer into the other storage tank 102, then turn on the other liquid pump 103, and use the other liquid pump 103 to pump the neutralizer in the other storage tank 102 into the reaction cylinder 106. Then turn on the external power supply of the servo motor 108, and use the controller to start the servo motor 108. The output end of the servo motor 108 starts to drive the main shaft 109 to rotate. Through the continuous rotation of the main shaft 109, multiple rotating rods 110 and multiple round rods 111 stir, fully stirring the neutralizer and the waste liquid, and neutralizing the waste liquid inside the reaction cylinder 106, so as to facilitate the environmental protection treatment of the waste liquid, improve the environmental protection function of the metal extraction device for recycling waste lithium batteries. At this time, there are agglomerated substances floating in the mixed liquid. To facilitate its cleaning, the staff opens the valve between the filter box 2 and the reaction cylinder 106, then turns on the external power supply of the liquid pump 202, and uses the controller to start the liquid pump 202, so that the liquid pump 202 pumps the waste liquid into the filter box 2, and guides the liquid into the filter box 2, and filters the neutralized waste liquid through the two filter mesh plates 201. At this time, the liquid pump 202 is already connected to the sewage pipe. When it is necessary to replace the two filter mesh plates 201, the staff opens the sealing door 114 and replaces the two filter mesh plates 201 inside the filter box 2, so as to facilitate its filtration treatment and improve the practicability of the metal extraction device for recycling waste lithium batteries.

[0036] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A metal extraction device for recycling waste lithium batteries, comprising a bottom plate (1), characterized in that: At the center of the top of the bottom plate (1), a reaction cylinder (106) is fixedly installed. Near the center of the top of the reaction cylinder (106), a magnetic separator (105) is fixedly connected. At the top of the magnetic separator (105), a crushing assembly (112) is fixedly connected. On both sides of the inner wall of the crushing assembly (112), two crushing cylinders (113) are provided. At the top of the crushing assembly (112), an introducing plate (104) is fixedly connected. At the center of the bottom of the bottom plate (1), a supporting plate (107) is fixedly connected. Near the edge of the top of the supporting plate (107), a servo motor (108) is fixedly installed. The output end of the servo motor (108) is fixedly connected to a main shaft (109). On the outer surface of the main shaft (109), a plurality of rotating rods (110) are fixedly connected. On the outer surfaces of the plurality of rotating rods (110), a plurality of round rods (111) are fixedly connected.

2. The metal extraction device for recycling waste lithium batteries according to claim 1, characterized in that: On both sides near the edge of the top of the bottom plate (1), storage boxes (102) are fixedly installed. On one side of the outer surface of the storage box (102), a first liquid pump (103) is fixedly installed.

3. The metal extraction device for recycling waste lithium batteries according to claim 2, wherein: The output end of the first liquid pump (103) is connected to the inside of the reaction cylinder (106) through a hose.

4. A metal extraction device for recycling waste lithium batteries according to claim 1, characterized in that: At the four corners of the bottom of the bottom plate (1), supporting legs (101) are fixedly connected.

5. A metal extraction device for recycling waste lithium batteries according to claim 1, characterized in that: At the center of the bottom of the bottom plate (1), a filter box body (2) is fixedly connected. Inside the filter box body (2), two filter mesh plates (201) are slidably connected.

6. The metal extraction device for recycling waste lithium batteries according to claim 5, wherein: At the center of the bottom of the filter box body (2), a second liquid pump (202) is fixedly installed. The output end of the second liquid pump (202) is fixedly connected to a blanking pipe (203). Near the edge of the top of the filter box body (2), it is connected to the bottom of the reaction cylinder (106) through a valve.

7. A metal extraction device for recycling waste lithium batteries according to claim 6, characterized in that: The input end of the blanking pipe (203) is fixedly embedded inside the filter box body (2).

8. A metal extraction device for recycling waste lithium batteries according to claim 5, characterized in that: A sealing door (114) is connected to the outer surface of the filter box body (2) through a hinge.

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