A device for recycling waste lithium
The automated filter cleaning system solves the problem of filter membrane clogging in waste lithium recycling equipment, achieving efficient cleaning and continuous equipment operation, and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI CLEAN WATER PROGRAM ENVIROMENTAL TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-26
AI Technical Summary
In existing waste lithium recycling and cleaning equipment, impurities and residues can easily clog the filter membrane during the screening process, requiring frequent manual replacement or cleaning, which increases labor costs and affects equipment efficiency.
A waste lithium recycling and processing device was designed, which adopts an automated filter cleaning system, including a rotary drive component and a high-pressure spray washing device. Through backwashing with clean water and brushing, impurities on the filter membrane are automatically cleaned to avoid clogging.
It enables rapid and efficient cleaning of the filter membrane, reduces labor costs, and ensures continuous and efficient operation of the equipment.
Smart Images

Figure CN224404824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste lithium recycling and processing technology, specifically a waste lithium recycling and processing device. Background Technology
[0002] Used lithium batteries refer to lithium-ion batteries that have been used and discarded. Lithium-ion batteries are composed of positive electrode materials, negative electrode materials, separators, binders, conductive agents, etc. Common positive electrode materials include lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, lithium iron phosphate, and ternary materials.
[0003] Currently, the recycling of waste lithium requires cleaning. During dismantling and separation, large amounts of water are needed for rinsing to remove residual electrolyte and impurities adhering to various components. The resulting cleaning wastewater contains a large number of pollutants, including heavy metal ions and organic matter. In actual cleaning, the wastewater also needs to be filtered to remove impurities for better subsequent wastewater treatment. However, during continuous filtration, impurities in the wastewater can easily clog the filter membrane. Therefore, it is necessary for staff to open the equipment periodically to replace or clean the filter, which not only increases labor costs but also affects the continuous processing efficiency of the equipment.
[0004] To address the aforementioned issues, a screening and filtration device for the recycling and treatment of waste lithium wastewater is provided. Utility Model Content
[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0006] Therefore, the purpose of this utility model is to provide a waste lithium recycling and processing device to solve the problem mentioned in the background art that in the existing waste lithium recycling and cleaning devices, impurities and residues in the wastewater easily clog the filter membrane during continuous filtration. Therefore, it is necessary for staff to open the equipment at regular intervals to replace or clean the filter, which not only increases labor costs but also affects the continuous processing efficiency of the equipment.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste lithium recycling and processing device, comprising a processing box, a separation chamber at the bottom of the processing box, a waste discharge port that can be automatically opened and closed at the lowest point of the separation chamber, a cylindrical water collection tank above the separation chamber, a filter membrane installed at the bottom of the inner side of the cylindrical water collection tank, a cleaning rod located inside the separation chamber below the filter membrane, a brush attached to the filter membrane at the upper end of the cleaning rod along its length, a rotary drive assembly for driving the cleaning rod to rotate coaxially with the filter membrane at the lower end of the processing box, a spray washing plate located directly above the filter membrane at the upper inner side of the processing box, a water inlet device for inputting clean water into the spray washing plate at the upper outer side of the processing box, a water inlet pipe on one side of the separation chamber, and a drain pipe connected to and penetrating the outer side of the cylindrical water collection tank on one side.
[0008] As a preferred embodiment of the waste lithium recycling and processing device described in this utility model, the bottom side of the processing box is provided with an electric sealing door corresponding to the waste discharge port, the inner side of the separation chamber has a backflow slope guiding to the waste discharge port, and the drain pipe is also provided with a solenoid valve.
[0009] As a preferred embodiment of the waste lithium recycling and processing device described in this utility model, the rotary drive assembly includes a rotating shaft that is vertically fixed to the bottom of the cleaning rod and rotatably installed at the bottom of the separation chamber, a sealing shaft disposed at the connection between the rotating shaft and the bottom of the separation chamber, and a rotary motor disposed at the lower outer side of the processing box for driving the rotating shaft to rotate axially.
[0010] As a preferred embodiment of the waste lithium recycling and processing device described in this utility model, the bottom of the spray washing disc has a plurality of extension pipes longitudinally connected and distributed, and the bottom of each extension pipe is provided with a high-pressure scattering nozzle.
[0011] As a preferred embodiment of the waste lithium recycling and processing device described in this utility model, the water inlet device includes a water supply pipe with one end connected to the inner cavity of the spray washing plate and the other end connected to a clean water source, a metering pump installed on the water supply pipe, and a pressure sensor installed on the water supply pipe.
[0012] As a preferred embodiment of the waste lithium recycling and processing device described in this utility model, the top of the processing box has an inspection port and an inspection cover that matches the inspection port.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When the filter screen needs to be cleaned, the waste lithium recycling and processing device injects clean water into the spray washing plate through the water inlet device. Under pressure, the spray washing plate can spray and backwash the filter screen membrane below through the high-pressure spray nozzle, so that the impurities and dirt adhering / embedded on the filter screen membrane are effectively pushed out. At the same time, the rotating motor drives the cleaning rod to rotate quickly and further scrubs and cleans the bottom surface of the filter screen membrane through the brush. The fallen impurities and dirt can be directly discharged through the open waste outlet. The whole cleaning process is fast and efficient, with a simple structure and reasonable design, saving labor costs and facilitating the continuous operation of the recycling equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the external structure of the device of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the processing box of this utility model.
[0016] In the diagram: 100, processing tank; 110, separation chamber; 1101, waste outlet; 120, electric sealing door; 130, inspection cover; 200, cylindrical water collection tank; 210, filter membrane; 300, cleaning rod; 310, brush; 400, rotary drive assembly; 410, rotating shaft; 420, sealing shaft; 430, rotary motor; 500, spray plate; 510, extension pipe; 520, high-pressure diffuser nozzle; 600, water inlet device; 610, water supply pipe; 620, metering pump; 630, pressure sensor; 700, water inlet pipe; 800, drain pipe; 810, solenoid valve. Detailed Implementation
[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0020] Figures 1-2 The diagram shown is a complete structural schematic of a waste lithium recycling and processing device according to this utility model. Please refer to [link / reference]. Figures 1-2This embodiment of a waste lithium recycling and processing device includes a processing tank 100. The processing tank 100 has a separation chamber 110 at its lower interior. The lowest point of the separation chamber 110 has an automatically opening and closing waste outlet 1101. A cylindrical water collection tank 200 is arranged above the separation chamber 110. A filter membrane 210 is installed at the bottom inner side of the cylindrical water collection tank 200. A cleaning rod 300 is arranged below the filter membrane 210 and located inside the separation chamber 110. The upper end of the cleaning rod 300 has a length direction that is perpendicular to the ground of the filter membrane 210. The brush 310 fits snugly. The lower end of the treatment box 100 is also provided with a rotary drive assembly 400 for driving the cleaning rod 300 to rotate coaxially with the filter membrane 210. The upper inner side of the treatment box 100 is provided with a spray washing plate 500 located directly above the filter membrane 210. The upper outer side of the treatment box 100 is provided with a water inlet device 600 for inputting clean water into the spray washing plate 500. A water inlet pipe 700 is provided on one side of the separation chamber 110. The cylindrical water collection tank 200 is connected to a drain pipe 800 that runs through the outside of the treatment box 100.
[0021] An electric sealing door 120 corresponding to the waste discharge port 1101 is provided on one side of the bottom of the treatment tank 100. The inner side of the separation chamber 110 has a backflow slope that guides the waste discharge port 1101. A solenoid valve 810 is also provided on the drain pipe 800. The backflow slope allows impurities entering the separation chamber 110 to naturally settle at the waste discharge port 1101 for subsequent discharge. The rotary drive assembly 400 includes a rotating shaft 410 vertically fixed to the bottom of the cleaning rod 300 and rotatably mounted on the bottom of the separation chamber 110, a sealing shaft 420 provided at the connection between the rotating shaft 410 and the bottom of the separation chamber 110, and a rotary motor 430 provided at the lower outer side of the treatment tank 100 for driving the rotating shaft 410 to rotate axially. Several extension pipes 510 are longitudinally distributed at the bottom of the spray plate 500, and a high-pressure spray nozzle 520 is provided at the bottom of each extension pipe 510. The water inlet device 600 includes a water supply pipe 610 with one end connected to the inner cavity of the spray plate 500 and the other end connected to a clean water source, a metering pump 620 installed on the water supply pipe 610, and a pressure sensor 630 installed on the water supply pipe 610. The pressure sensor 630 can detect the water pressure drawn into the spray plate 500 to prevent the flushing water pressure from being too high or too low. Specifically, during operation, wastewater is introduced into the separation chamber 110 via gravity flow or a pump through the inlet pipe 700. The wastewater is then filtered through the filter membrane 210, leaving impurities in the separation chamber 110 and on the bottom surface of the filter membrane 210. Light water enters the cylindrical collection tank 200 and is discharged through the drain pipe 800. During cleaning, the inlet device 600 injects clean water into the spray washing plate 500. Under pressure, the spray washing plate 500 sprays and backwashes the filter membrane 210 below through the high-pressure spray nozzle 520, effectively removing impurities and dirt adhering to / embedded on the filter surface of the filter membrane 210. Simultaneously, the rotary motor 430 drives the cleaning rod 300 to rotate rapidly, and the bottom surface of the filter membrane 210 is further scrubbed and cleaned by the brush 310. The fallen impurities and dirt can be directly discharged through the open waste outlet 1101. The entire cleaning process is fast and efficient, with a simple structure and reasonable design, saving labor costs and facilitating continuous operation of the recycling equipment.
[0022] Furthermore, the top of the treatment tank 100 has an access port and a matching access cover 130. It is understood that after opening the access cover 130, the filter membrane 210 and the cleaning rod 300 inside the cylindrical water collection tank 200 can be replaced or cleaned.
[0023] In summary, the waste lithium recycling and processing device of this embodiment operates by introducing wastewater into the separation chamber 110 via gravity flow or a pump through the inlet pipe 700. The wastewater is then filtered through the filter membrane 210, causing impurities to remain in the separation chamber 110 and on the bottom surface of the filter membrane 210. Light water enters the cylindrical collection tank 200 and is discharged through the drain pipe 800. During cleaning, the inlet device 600 injects clean water into the spray washing plate 500. Under pressure, the spray washing plate 500 is sprayed through the high-pressure spray nozzles 52. The filter screen 210 below is sprayed and backwashed, which effectively removes the impurities and dirt adhering to / embedded on the filter screen 210. At the same time, the rotating motor 430 drives the cleaning rod 300 to rotate rapidly and the bottom surface of the filter screen 210 is further scrubbed and cleaned by the brush 310. The fallen impurities and dirt can be directly discharged through the open waste discharge port 1101. The whole cleaning process is fast and efficient, with a simple structure and reasonable design, saving labor costs and facilitating the continuous operation of the recycling equipment.
[0024] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A waste lithium recycling treatment device, characterized by, The system includes a processing box (100), with a separation chamber (110) at the bottom. The separation chamber (110) has an automatically opening and closing waste outlet (1101) at its lowest point. A cylindrical water collection tank (200) is positioned above the separation chamber (110). A filter membrane (210) is installed at the bottom inner side of the cylindrical water collection tank (200). A cleaning rod (300) is positioned below the filter membrane (210) and located inside the separation chamber (110). The upper end of the cleaning rod (300) has a brush (310) along its length that adheres to the surface of the filter membrane (210). The lower end of the treatment box (100) is also provided with a rotary drive assembly (400) for driving the cleaning rod (300) to rotate coaxially with the filter membrane (210). The upper inner side of the treatment box (100) is provided with a spray washing plate (500) located directly above the filter membrane (210). The upper outer side of the treatment box (100) is provided with a water inlet device (600) for inputting clean water into the spray washing plate (500). A water inlet pipe (700) is provided on one side of the separation chamber (110). One side of the cylindrical water collection tank (200) is connected to a drain pipe (800) that runs through the outside of the treatment box (100).
2. The device for recycling waste lithium according to claim 1, characterized in that: The bottom side of the processing box (100) is provided with an electric sealing door (120) corresponding to the waste discharge port (1101), the inner side of the separation chamber (110) has a backflow slope that guides to the waste discharge port (1101), and the drain pipe (800) is also provided with a solenoid valve (810).
3. The device for recycling waste lithium according to claim 1, characterized in that: The rotary drive assembly (400) includes a rotating shaft (410) that is vertically fixed to the bottom of the cleaning rod (300) and rotatably mounted on the bottom of the separation chamber (110), a sealing shaft (420) disposed at the connection between the rotating shaft (410) and the bottom of the separation chamber (110), and a rotary motor (430) disposed at the lower outer side of the processing box (100) for driving the rotating shaft (410) to rotate axially.
4. The device for recycling waste lithium according to claim 1, characterized in that: The bottom of the spray plate (500) has a number of extension tubes (510) that are longitudinally connected, and each extension tube (510) is provided with a high-pressure scattering nozzle (520) at its bottom.
5. The waste lithium recycling and processing device according to claim 1, characterized in that: The water inlet device (600) includes a water supply pipe (610) with one end connected to the inner cavity of the spray plate (500) and the other end connected to a clean water source, a metering pump (620) installed on the water supply pipe (610), and a pressure sensor (630) installed on the water supply pipe (610).
6. The waste lithium recycling and processing device according to claim 1, characterized in that: The top of the processing box (100) has an access port and an access cover (130) that matches the access port.