Lithium battery recycled material conveying mechanism

Abstract

The utility model provides a lithium battery recycled material conveying mechanism. The lithium battery recycled material conveying mechanism comprises a supporting seat, a mechanical rotating arm arranged at one corner of the top of the supporting seat and a control device arranged at one end of the mechanical rotating arm. The cylinder body is arranged at the top of the supporting seat; the conveying pipe is arranged at the top of the barrel and extends outwards, and the sealing structure is arranged on the side wall of the conveying pipe; the first sealing groove is formed in the outer wall of the cylinder body, and the detachable insertion sealing plate is connected with the first sealing groove in a sealing mode; and the cleaning structures are symmetrically arranged in the cylinder body, and each cleaning structure comprises an inclined plate and a scraper piece which is arranged on the front surface of the inclined plate and plays a cleaning role. High integration of vacuum sealing, powder conveying and residue removing is achieved through modular design, stability and efficiency of powder conveying are remarkably improved, meanwhile, maintenance difficulty is lowered, and the vacuum powder conveying device is suitable for production requirements of high-purity battery materials.

Description

Technical Field

[0001] This utility model relates to a lithium battery recycling material conveying mechanism. Background Technology

[0002] Material conveying is a critical process in lithium battery recycling, especially the vacuum conveying of powdered or granular materials. Traditional vacuum conveying equipment typically employs a negative pressure cylindrical structure, using airflow to transport materials from the inlet to the outlet. However, existing technologies suffer from the following problems:

[0003] Material accumulation and blockage: During negative pressure conveying, materials tend to accumulate on the inner wall or bottom of the cylinder, especially materials with high moisture content or high viscosity, such as lithium iron phosphate powder. Accumulated material not only affects conveying efficiency but can also lead to equipment blockage and increased maintenance costs.

[0004] Low conveying efficiency: Some conveying equipment lacks effective material flow auxiliary structures, resulting in uneven material flow and even "bridging" phenomenon, which affects the continuity and stability of conveying.

[0005] Insufficient sealing performance: The sealing structure design of the side wall of the conveying cylinder is unreasonable, which can easily lead to air leakage or dust leakage. This not only reduces the vacuum level and affects the conveying effect, but may also cause environmental pollution and safety hazards.

[0006] To address the aforementioned issues, some improvements have been proposed in the prior art. For example, patent application number CN202110818817.X proposes a continuous and stable vacuum conveying device for lithium iron phosphate powder used in lithium battery production, which improves conveying efficiency by optimizing airflow distribution and adding auxiliary conveying structures. However, this solution still has shortcomings in preventing material adhesion, cleaning residual materials, and enhancing sealing, especially for highly viscous or easily agglomerated lithium battery recycling materials, where its adaptability still needs to be improved.

[0007] Therefore, there is an urgent need to design an improved lithium battery recycling material conveying mechanism. By optimizing the internal structure of the negative pressure cylinder, such as by setting inclined baffles, vibration and scraper devices, the material flowability and anti-clogging performance can be improved, while the reliability of the sealing structure can be enhanced, thereby improving the conveying efficiency and stability. Utility Model Content

[0008] This invention provides a lithium battery recycling material conveying mechanism, which can effectively solve the above-mentioned problems.

[0009] This utility model is implemented as follows:

[0010] A lithium battery recycling material conveying mechanism, including

[0011] A support base, a mechanical rotating arm located at one corner of the top of the support base, and a control device located at one end of the mechanical rotating arm;

[0012] The cylinder is disposed on top of the support base;

[0013] A conveying pipe extending outward from the top of the cylinder, and a sealing structure on the side wall of the conveying pipe;

[0014] A first sealing groove is formed on the outer wall of the cylinder, and a detachable plug-in sealing plate is sealed to the first sealing groove;

[0015] A cleaning structure symmetrically arranged inside the cylinder body includes an inclined plate, a scraper disposed on the front of the inclined plate and serving a cleaning function, a vibration motor disposed on the back of the inclined plate, and a connector disposed at one end of the inclined plate and used to connect with the detachable plug-in sealing plate.

[0016] The beneficial effects of this utility model are:

[0017] (1) The stable connection between the support base and the cylinder ensures the rigid support of the entire equipment. The conveying pipe extending outward from the top, together with the side wall sealing structure (including the first sealing groove and the detachable plug-in sealing plate), forms multiple vacuum sealing guarantees, effectively maintaining the negative pressure environment inside the cylinder. The symmetrically arranged cleaning structure achieves efficient cleaning and conveying of powder through the synergistic action of the inclined plate, scraper and vibrating motor. The scraper can thoroughly clean the residual powder on the surface of the inclined plate, while the vibrating motor further promotes the flow of powder and prevents accumulation. The design of the detachable plug-in sealing plate and the connecting parts not only facilitates quick disassembly and maintenance of the cleaning structure, but also ensures that the sealing performance is not affected. The overall structure achieves a high degree of integration of vacuum sealing, powder conveying and residual cleaning through modular design, which significantly improves the stability and efficiency of powder conveying, while reducing the difficulty of maintenance, and is suitable for the production needs of high-purity battery materials. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is the front view of this utility model.

[0020] Figure 2 This is a schematic diagram showing the unfolded structure of the cylindrical body of this utility model.

[0021] Figure 3 This is a structural schematic diagram of the anti-clogging component of this utility model.

[0022] Figure 4 This is a schematic diagram of the inclined plate of this utility model.

[0023] Figure 5 This is a cross-sectional view of the connection structure between the conveying cylinder and the sealing element of this utility model.

[0024] Explanation of icon numbers:

[0025] 10. Support base; 100. Connecting rod; 102. Support rod; 104. Conveying device;

[0026] 20. Cylinder body; 200. Discharge port; 202. Valve; 204. Placement plate; 206. Vacuum pump; 208. First sealing groove;

[0027] 30. Conveying pipe; 300. Sealing element; 3002. Sealing plate; 3004. First sealing gasket; 3006. First magnetic suction element; 3008. Handle; 302. Feed cylinder; 304. Second sealing groove; 306. Second sealing gasket; 308. Embedded groove; 3080. Second magnetic suction element;

[0028] 40. Cleaning mechanism; 400. Detachable plug-in sealing plate; 402. Inclined plate; 4022. Concealed groove; 4024. Micro motor; 4026. Scraper; 40260. Flexible material; 40262. Through cavity; 40264. Air outlet; 4028. Vibration motor; 4030. Plug-in groove; 40300. Elastic plate; 40302. Movable snap-fit ​​connector;

[0029] 50. Mechanical rotating arm; 60. Control device; 70. Transmission mechanism. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0031] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Reference Figure 1-5 As shown, a lithium battery recycling material conveying mechanism includes...

[0033] Support base 10, mechanical rotating arm 50 set at one corner of the top of support base 10, and control device 60 set at one end of mechanical rotating arm 50.

[0034] A cylinder 20 is set on the top of the support base 10; a feed cylinder 302 is set on the top of the conveying pipe 30; a discharge port 200 is set on the bottom of the cylinder 20; a valve 202 is set on the outer wall of the discharge port 200; a transmission mechanism 70 connected to the discharge port 200 (existing technology, not described in detail here); a placement plate 204 is also set on the outer wall of the cylinder 20; a vacuum pump 206 is set on the top of the placement plate 204; a connecting rod 100 is set on one side of the bracket in the support base 10; a support rod 102 is set on one end of the connecting rod 100; a conveying device 104 (a conveying structure composed of a motor and a fan in the prior art, not described in detail here) is set on one end of the support rod 102 and used in conjunction with the conveying pipe 30.

[0035] In one embodiment, the inner wall of the feed cylinder 302 may be coated with a superhydrophobic nano-coating to reduce powder adhesion; a micro air hammer is installed at the bottom to periodically pulse and vibrate to prevent arching.

[0036] A conveying pipe 30 extending outward from the top of the cylinder 20 is provided, and a sealing structure is provided on the side wall of the conveying pipe 30. The sealing structure includes a second sealing groove 304 formed on the side wall of the conveying pipe 30, a second sealing gasket 306 provided inside the second sealing groove 304, a groove 308 formed on the second sealing gasket 306, a second magnetic suction member 3080 provided inside the groove 308, and a sealing member 300 connected to the second sealing groove 304. The sealing member 300 includes a sealing plate 3002, a first sealing gasket 3004 provided on the front end face of the sealing plate 3002, a first magnetic suction member 3006 provided at the front end of the first sealing gasket 3004 and connected to the second magnetic suction member 3080, and a handle 3008 provided on the sealing plate 3002.

[0037] In one embodiment, the static seal between the second sealing groove 304 and the first sealing groove 208 can be upgraded to a magnetic fluid seal. A magnetic fluid (such as a ferrite suspension) is injected into the sealing gasket 306 / 3004. Through the magnetic field constraint of the first magnetic attractor 3006 and the second magnetic attractor 3080, a dynamically adjustable liquid sealing layer is formed. Even if the surface is worn, it can automatically fill the gaps, thereby increasing the vacuum retention capacity to 10. -3 Pa level, extending lifespan by more than 3 times.

[0038] In one embodiment, a spiral guide groove (not shown in the figure) may be added to the inner wall of the conveying pipe 30 to form a swirling conveying in conjunction with the airflow, thereby reducing the friction between the powder and the pipe wall and reducing the probability of agglomeration.

[0039] A first sealing groove 208 is formed on the outer wall of the cylinder 20, and a detachable pluggable sealing plate 400 is sealed to the first sealing groove 208; a cleaning structure 40 is symmetrically arranged inside the cylinder 20, the cleaning structure 40 includes an inclined plate 402, a scraper component disposed on the front of the inclined plate 402 and playing a cleaning role, a vibration motor 4028 disposed on the back of the inclined plate 402, and a connector disposed at one end of the inclined plate 402 and used to connect with the detachable pluggable sealing plate 400; a concealed groove 4022 is also formed in the middle of the top surface of the inclined plate 402; the scraper component includes a micro motor 4024 disposed inside the concealed groove 4022, and a scraper 4026 disposed at one end of the micro motor 4024; a flexible material 40260 is provided at one end of the scraper 4026, a through cavity 40262 is formed in the middle of the scraper 4026, and an air outlet 40264 is formed on both sides of the scraper 4026 and communicates with the through cavity 40262.

[0040] In one embodiment, the flexible material 40260 is made of a silicone rubber-graphene composite material (coefficient of friction 0.08).

[0041] In one embodiment, the scraper 4026 is made of polytetrafluoroethylene (PTFE) or polyetheretherketone (PEEK), which combines abrasion resistance, non-stick properties, and chemical inertness.

[0042] Furthermore, the cavity 40262 formed in the middle of the scraper 4026 can be connected to a vacuum pipeline. When the scraper 4026 rotates, the air outlet 40264 sprays out a pulsed airflow to blow off the adhering powder (similar to the effect of an "air knife").

[0043] In one embodiment, the connector includes a insertion groove 4030 formed at one end of the inclined plate 402, an elastic plate 40300 disposed in the insertion groove 4030, and movable snap-fit ​​members 40302 arranged at equal intervals on the elastic plate 40302.

[0044] Specifically, in one embodiment, a lithium battery recycled material conveying control step is also included:

[0045] S1. Check the oil level and filter status of vacuum pump 206. At the same time, confirm that the adsorption distance between the first magnetic 3006 and the second magnetic 3080 of the seal 300 is 0.5mm (calibrated by a laser rangefinder). Then, pre-contact the flexible material 40260 of scraper 4026 with the inner wall of cylinder 20 and zero the pressure sensor.

[0046] S2. Turn on vacuum pump 206 to bring the vacuum level inside cylinder 20 to the set value (10). -2 Pa level (monitored by a thermal conductivity vacuum gauge), then the frequency conversion motor of the conveying device 104 is started, the airflow speed is controlled to 6m / s (corresponding to the swirling intensity of the spiral guide groove), and the miniature air hammer of the feed cylinder 302 is opened (pulse mode: 0.5Hz, lasting 10 seconds).

[0047] S3. When the pressure sensor detects that the sealing pressure of the second sealing gasket 306 is <0.1MPa, the PID controller increases the current of the first magnetic suction component 3006 to 3A, compresses the magnetic fluid sealing layer to 0.3mm, and if the temperature of the delivery pipe 30 is >50℃, the jacket cooling water circulation is started (flow rate 2L / min).

[0048] S4. The micro motor 4024 drives the scraper 4026 to rotate at 30 rpm. At the same time, 0.3 MPa pulsed nitrogen gas (frequency 2 Hz) is introduced into the cavity 40262. When the humidity sensor of the concealed groove 4022 detects that the humidity is >60%RH, it triggers the vibration motor 4028 (amplitude 2 mm, lasting for 30 seconds).

[0049] S5. Turn off the conveying device 104, keep the vacuum pump 206 running for 5 minutes to remove residual powder, press the handle 3008 to release the magnetic seal, take out the scraper 4026 and soak it in ethanol for cleaning. At the same time, record the number of times the valve 202 is opened and closed. Replace the sealing ring after it reaches 1000 times.

[0050] In summary, a high-precision, long-life powder conveying control system was constructed by organically combining a magnetic fluid dynamic sealing system, a cyclone-coordinated conveying mechanism, and a triple self-cleaning module. Specifically, the laser-calibrated magnetic suction element spacing (0.5±0.05mm) and the PID-regulated magnetic fluid sealing layer (0.1-0.3MPa) stabilized the vacuum level at 10. -2Pa-level pressure reduction; the swirling conveying system formed by the spiral guide channel and the variable frequency motor (6m / s) reduces powder residue to below 0.2%; while the self-cleaning system integrating a rotating scraper (30rpm), pulse air knife (0.3MPa / 2Hz), and vibration crushing (2000 times / min), combined with a humidity response mechanism, effectively solves the agglomeration problem in high humidity environments. This solution, through parameterized intelligent control (e.g., automatic start of cooling cycle when temperature > 50℃) and modular maintenance design (e.g., 1000 valve action warnings), achieves a breakthrough improvement in the sealing performance, cleaning efficiency, and service life of powder conveying equipment, making it particularly suitable for the lithium battery materials field.

[0051] Working principle:

[0052] The powder material first enters the conveying pipe 30 through the feed cylinder 302, and is then conveyed into the cylinder 20 by the pneumatic conveying action of the conveying device 104. The vacuum pump 206 creates a negative pressure environment inside the cylinder 20 by drawing a vacuum, thus degassing the powder. The treated powder falls onto the symmetrically arranged inclined plates 402 under the action of gravity. At this time, the micro motor 4024 drives the scraper 4026 to rotate, and the flexible material 40260 on the surface of the scraper closely adheres to the surface of the inclined plate, pushing the powder towards the discharge port 200. Simultaneously, the internal cavity 40262 of the scraper ejects pulsed airflow through the air outlet 40264 to assist in removing adhering powder; the vibration motor 4028 on the back of the inclined plate generates high-frequency vibration, further promoting powder flow; when maintenance is required, the second sealing groove 304 can be opened by operating the seal 300 through the handle 3008, or the detachable plug-in sealing plate 400 can be disassembled to access the cleaning structure 40; finally, the processed powder is discharged through the valve 202 of the bottom discharge port 200, completing the entire vacuum conveying process. This equipment ensures the system vacuum through multiple sealing structures (including magnetic seals and gaskets), and effectively solves the powder residue problem by using a combination of mechanical scraping, airflow assistance, and vibration to achieve efficient and stable powder conveying.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lithium battery recycling material conveying mechanism, characterized in that, include Support base (10), mechanical rotating arm (50) disposed at one corner of the top of the support base (10), and control device (60) disposed at one end of the mechanical rotating arm (50); The cylinder (20) is disposed on the top of the support (10); A conveying pipe (30) extending outward from the top of the cylinder (20), and a sealing structure on the side wall of the conveying pipe (30); A first sealing groove (208) is formed on the outer wall of the cylinder (20), and a detachable plug-in sealing plate (400) is sealed to the first sealing groove (208); A cleaning structure (40) is symmetrically arranged inside the cylinder (20). The cleaning structure (40) includes an inclined plate (402), a scraper disposed on the front of the inclined plate (402) and serving a cleaning function, a vibration motor (4028) disposed on the back of the inclined plate (402), and a connector disposed at one end of the inclined plate (402) and used to connect with the detachable plug-in sealing plate (400).

2. The lithium battery recycling material conveying mechanism according to claim 1, characterized in that, A concealed groove (4022) is also formed in the middle of the top surface of the inclined plate (402); the scraper includes a micro motor (4024) disposed inside the concealed groove (4022) and a scraper (4026) disposed at one end of the micro motor (4024).

3. The lithium battery recycling material conveying mechanism according to claim 2, characterized in that, One end of the scraper (4026) is provided with a flexible material (40260), and a cavity (40262) is formed in the middle of the scraper (4026). An air outlet (40264) is formed on both sides of the scraper (4026) and communicates with the cavity (40262).

4. The lithium battery recycling material conveying mechanism according to claim 1, characterized in that, The connector includes a insertion groove (4030) formed at one end of the inclined plate (402), an elastic plate (40300) disposed in the insertion groove (4030), and movable snap-fit ​​members (40302) arranged at equal intervals on the elastic plate (40300).

5. The lithium battery recycling material conveying mechanism according to claim 1, characterized in that, The sealing structure includes a second sealing groove (304) formed on the side wall of the delivery pipe (30), a second sealing gasket (306) disposed inside the second sealing groove (304), a groove (308) formed on the second sealing gasket (306), and a second magnetic attractor (3080) disposed inside the groove (308).

6. The lithium battery recycling material conveying mechanism according to claim 5, characterized in that, It also includes a sealing element (300) connected to the second sealing groove (304), the sealing element (300) including a sealing plate (3002), a first sealing gasket (3004) disposed on the front end face of the sealing plate (3002), a first magnetic suction element (3006) disposed at the front end of the first sealing gasket (3004) and connected to the second magnetic suction element (3080), and a handle (3008) disposed on the sealing plate (3002).

7. The lithium battery recycling material conveying mechanism according to claim 1, characterized in that, The top of the conveying pipe (30) is provided with a feed cylinder (302).

8. The lithium battery recycling material conveying mechanism according to claim 1, characterized in that, The bottom of the cylinder (20) is provided with a discharge port (200), a valve (202) is provided on the outer wall of the discharge port (200), and a transmission mechanism (70) is connected to the discharge port (200).

9. A lithium battery recycling material conveying mechanism according to claim 1, characterized in that, The outer wall of the cylinder (20) is also provided with a placement plate (204) and a vacuum pump (206) is provided on the top of the placement plate (204).

10. A lithium battery recycling material conveying mechanism according to claim 1, characterized in that, The support base (10) has a connecting rod (100) on one side of the bracket, a support rod (102) at one end of the connecting rod (100), and a conveying device (104) at one end of the support rod (102) and used in conjunction with the conveying pipe (30).

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