Lithium iron phosphate slurry stirrer

By designing a lithium iron phosphate slurry stirrer including cleaning agitation mechanism, the problem that traditional equipment is difficult to deal with high viscosity and high solid content slurry is solved, cleaning the inner wall of the stirring tank and uniform stirring of the slurry are achieved, and the stirring efficiency and service life of the equipment are improved.

CN222855275UActive Publication Date: 2025-05-13NANJING HAIYI MASCH CO LTD
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Patent Information

Application Number
CN202421014735.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2025-05-13
Estimated Expiration
2034-05-10

AI Technical Summary

Technical Problem

Traditional lithium iron phosphate slurry mixing equipment is difficult to meet the stirring needs of high viscosity and high solid content battery slurry, and lithium iron phosphate slurry is easily stuck to the inner wall and bottom end of the mixing tank, resulting in uneven stirring and corrosion of the mixing tank.

Method used

A lithium iron phosphate slurry stirrer including a cleaning stirring mechanism is designed. The cleaning stirrer consists of a support component, a driving component, a conversion component, a transmission component, an inner wall cleaning component and a stirring component. The rotating rod and the cleaning rubber rod are driven to rotate through the rotating shaft to prevent lithium iron phosphate from adhering to the inner wall of the stirring tank, and the slurry is prevented from adhering to the bottom end of the stirring tank through an arc-shaped stirring leaf.

Benefits of technology

The inner wall of the stirring tank is cleaned, prevents corrosion of lithium iron phosphate, ensures the uniformity and efficiency of stirring, and extends the service life of the stirring tank.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a slurry stirrer for lithium iron phosphate, which relates to the technical field of battery slurry stirring, and comprises a stirring tank and a cleaning stirring mechanism, when in use, a rotating shaft drives a rotating rod to rotate in the rotating process, and cleaning rubber rods cling to the inner wall of the stirring tank and are fixed on two sides of the rotating rod; the inner wall of the stirring tank is clean, lithium iron phosphate is prevented from being attached to the inner wall, the arc-shaped stirring blades are attached to the bottom end of the stirring tank, in the stirring process, due to the fact that lithium iron phosphate slurry is thick, the arc-shaped stirring blades can prevent the slurry from being attached to the bottom end of the stirring tank, it is guaranteed that the inner wall of the stirring tank is clean, and corrosion of the slurry is avoided; when the stirring tank works, corresponding vibration can be generated to cause instability of the stirring tank, the fixing assembly is supported through mutual welding of the fixing rod and the supporting rod, the working stability of the stirring tank is guaranteed, and the middle of the stirring tank is sleeved with the protection ring, so that the stirring tank is secondarily fixed, and the stirring tank works more stably.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery slurry stirring, in particular to a lithium iron phosphate slurry stirrer. Background Art

[0002] As an important cathode material for lithium-ion batteries, lithium iron phosphate (LiFePO4) has been widely used in electric vehicles, energy storage systems, and portable electronic devices due to its excellent thermal stability, long life, and environmental friendliness. With the continuous improvement of performance and safety requirements in these fields, the production process of lithium iron phosphate batteries has also been continuously optimized and developed. One of the key steps is the preparation of cathode materials. In the process of preparing lithium iron phosphate cathode materials, the stirring process of the slurry is particularly important. This process involves uniformly mixing lithium iron phosphate powder with other ingredients (such as conductive agents, binders, etc.) to form a slurry for subsequent coating processes. Uniform slurry is crucial to improving the overall performance and consistency of the battery. Therefore, the design and function of the agitator directly affect the quality of the final product. Therefore, the design and use background of lithium iron phosphate slurry agitators are rooted in the demand for high-quality battery materials. Traditional stirring equipment may be difficult to meet all production needs, especially when dealing with high-viscosity, high-solid content battery slurries. Modern lithium iron phosphate slurry agitators need to have efficient stirring capabilities to ensure a high degree of uniformity of the material while avoiding decomposition or degradation of the material during long-term stirring.

[0003] After searching, the patent number "CN218189021U" mentioned in the text that "the utility model discloses a high-efficiency agitator for lithium iron phosphate slurry, including a stirring tank body, a driving motor, a reducer, a feeding port and a discharging port. A stirring shaft is longitudinally installed at the central position inside the stirring tank body. The stirring shaft is connected to the driving motor and the reducer. The driving motor and the reducer control the rotation of the stirring shaft to achieve the stirring of the slurry. The stirring shaft adopts a three-stage paddle setting. The upper high-efficiency stirring paddle and the middle high-efficiency stirring paddle are arranged at the middle and low positions of the stirring tank body, so that the stirring space is expanded, the stirring time is shortened, and it is convenient to carry out high-efficiency stirring and reduce energy consumption. The bottom anchor stirring paddle is arranged at the bottom of the stirring tank body, which can effectively avoid the problem that the bottom material cannot be stirred evenly, ensure the uniformity of stirring, and greatly improve the stirring. In order to achieve the desired effect, the mixing tank is also provided with a weighing module, which is arranged at the support of the mixing tank to obtain the weight value after the addition is completed, and can effectively record the production rhythm. When in use, the mixing shaft adopts a three-stage paddle setting, and the upper high-efficiency mixing paddle and the middle high-efficiency mixing paddle are arranged at the middle and low positions of the mixing tank, so that the mixing space is expanded, the mixing time is shortened, and efficient mixing is convenient and energy consumption is reduced. The bottom anchor mixing paddle is arranged at the bottom of the mixing tank, which can effectively avoid the problem that the bottom material cannot be mixed evenly, and ensure the uniformity of mixing. However, during the mixing process, since the lithium iron phosphate slurry is relatively viscous, it is easy to adhere to the inner wall and bottom of the mixing tank during the mixing process, and the lithium iron phosphate slurry is highly corrosive and accumulates on the inner wall of the mixing tank for a long time, which is easy to cause corrosion and damage to the mixing tank.

[0004] Therefore, we provide a lithium iron phosphate slurry agitator to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium iron phosphate slurry agitator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium iron phosphate slurry agitator, comprising a stirring tank and a cleaning stirring mechanism, wherein the cleaning stirring mechanism is arranged inside the stirring tank;

[0007] The cleaning and stirring mechanism includes a supporting assembly, a driving assembly, a conversion assembly, a transmission assembly, an inner wall cleaning assembly and a stirring assembly. The supporting assembly is fixedly connected to one side of the stirring tank, the upper end of the supporting assembly is threadedly connected to the driving assembly, the upper side of the driving assembly is provided with a conversion assembly, one side of the conversion assembly is sleeved with a transmission assembly, the lower end of the transmission assembly is fixedly connected to the inner wall cleaning assembly, and one side of the inner wall cleaning assembly is provided with a stirring assembly.

[0008] Preferably, the support assembly includes a triangular bracket and a motor bracket, the triangular bracket is welded to the upper end of the stirring tank, and the motor bracket is fixedly connected to the upper end of the triangular bracket.

[0009] Preferably, the driving assembly includes a driving motor, a driving wheel and a driving belt, the upper end of the motor bracket is threadedly connected to the driving motor, a side of the driving motor is keyed to the driving wheel, and the driving belt is sleeved inside the driving wheel.

[0010] Preferably, the conversion assembly includes a driven wheel, a converter and a force-bearing wheel, the upper end of the driving belt is sleeved with the driven wheel, one side of the driven wheel is threadedly connected to the converter, and the upper end of the converter is rotatably connected to the force-bearing wheel.

[0011] Preferably, the transmission assembly includes a transmission belt, a transmission wheel and a rotating shaft, the surface of the force-bearing wheel is sleeved with a transmission belt, the other side of the transmission belt is sleeved with a transmission wheel, and the lower end of the transmission wheel is fixedly connected to the rotating shaft.

[0012] Preferably, the inner wall cleaning assembly comprises a rotating rod and a cleaning rubber rod, the rotating rod is sleeved on the middle of the rotating shaft, and the cleaning rubber rods are fixedly connected to both sides of the rotating rod.

[0013] Preferably, the stirring assembly includes a stabilizing wheel, a stirring blade and an arc-shaped stirring blade, the lower end of the rotating rod is provided with a stabilizing wheel, the lower end of the stabilizing wheel is sleeved with a stirring blade, and the lower end of the stirring blade is sleeved with an arc-shaped stirring blade.

[0014] Preferably, the lower end of the stirring tank is fixedly connected with a fixing assembly, and the fixing assembly includes a fixing rod, a support rod and a protective ring. The two sides of the stirring tank are fixedly connected with fixing rods, the inside of the fixing rods is fixedly connected with support rods, and the upper end of the fixing rod is welded with a protective ring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the setting of the cleaning stirring mechanism, when in use, the rotating shaft drives the rotating rod to rotate during the rotation, and the cleaning rubber rods are fixed on both sides of the rotating rod close to the inner wall of the stirring tank. During the rotation process, the inner wall of the stirring tank is kept clean to prevent lithium iron phosphate from adhering to the inner wall. The arc-shaped stirring blades fit the bottom of the stirring tank. During the stirring process, since the lithium iron phosphate slurry is relatively viscous, the arc-shaped stirring blades can prevent the slurry from adhering to the bottom of the stirring tank, thereby ensuring that the inner wall of the stirring tank is clean and not corroded by the slurry.

[0017] 2. Through the setting of the fixing component, when in use, corresponding vibrations will be generated during the operation of the mixing tank, causing instability of the mixing tank. The fixing component is supported by welding the fixing rod and the supporting rod to each other, thereby ensuring the stability of the mixing tank. A protective ring is sleeved in the middle of the mixing tank, thereby performing secondary fixation on the mixing tank, making its operation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall appearance of the rear side structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the cleaning and stirring device of the utility model;

[0021] Figure 4 For the utility model Figure 2 A is an enlarged structural diagram of FIG.

[0022] Numbers in the figure: 1. stirring tank; 2. cleaning stirring mechanism; 21. supporting assembly; 211. triangular bracket; 212. motor bracket; 22. driving assembly; 221. driving motor; 222. driving wheel; 223. driving belt; 23. conversion assembly; 231. driven wheel; 232. converter; 233. force wheel; 24. transmission assembly; 241. transmission belt; 242. transmission wheel; 243. rotating shaft; 25. inner wall cleaning assembly; 251. rotating rod; 252. cleaning rubber rod; 26. stirring assembly; 261. stabilizing wheel; 262. stirring blade; 263. arc stirring blade; 3. fixing assembly; 31. fixing rod; 32. supporting rod; 33. protective ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-4 As shown, the utility model provides a technical solution: a lithium iron phosphate slurry agitator, comprising a stirring tank 1 and a cleaning stirring mechanism 2, wherein the cleaning stirring mechanism 2 is arranged inside the stirring tank 1;

[0026] The cleaning and stirring mechanism 2 includes a supporting assembly 21, a driving assembly 22, a conversion assembly 23, a transmission assembly 24, an inner wall cleaning assembly 25 and a stirring assembly 26. The supporting assembly 21 is fixedly connected to one side of the stirring tank 1, the upper end of the supporting assembly 21 is threadedly connected to the driving assembly 22, the upper side of the driving assembly 22 is provided with a conversion assembly 23, one side of the conversion assembly 23 is sleeved with the transmission assembly 24, the lower end of the transmission assembly 24 is fixedly connected to the inner wall cleaning assembly 25, and one side of the inner wall cleaning assembly 25 is provided with a stirring assembly 26.

[0027] Furthermore, the supporting assembly 21 includes a triangular bracket 211 and a motor bracket 212. The triangular bracket 211 is welded to the upper end of the mixing tank 1, and the upper end of the triangular bracket 211 is fixedly connected to the motor bracket 212. By fixing and welding the triangular bracket 211 to the upper end of the mixing tank 1 and providing the motor bracket 212 at the upper end of the triangular bracket 211, the driving motor 221 can be well supported to ensure its good working condition.

[0028] Furthermore, the driving assembly 22 includes a driving motor 221, a driving wheel 222 and a driving belt 223. The upper end of the motor bracket 212 is threadedly connected to the driving motor 221, and a flat key on one side of the driving motor 221 is connected to the driving wheel 222. The driving belt 223 is sleeved inside the driving wheel 222. The driving motor 221 drives the driving wheel 222 to rotate, and the driving wheel 222 drives the driving belt 223 to adjust the rotational motion, thereby driving the rotation of the upper driven wheel 231.

[0029] Furthermore, the conversion assembly 23 includes a driven wheel 231, a converter 232 and a force wheel 233. The upper end of the driving belt 223 is sleeved with the driven wheel 231, one side of the driven wheel 231 is threadedly connected with the converter 232, and the upper end of the converter 232 is rotatably connected to the force wheel 233. The driven wheel 231 is driven to rotate by the driving belt 223, and the driven wheel 231 changes its rotation direction through the converter 232 to drive the force wheel 233 to change its rotation angle.

[0030] Furthermore, the transmission assembly 24 includes a transmission belt 241, a transmission wheel 242 and a rotating shaft 243. The transmission belt 241 is sleeved on the surface of the force wheel 233, and the transmission wheel 242 is sleeved on the other side of the transmission belt 241. The lower end of the transmission wheel 242 is fixedly connected to the rotating shaft 243. The force wheel 233 drives the transmission wheel 242 to rotate through the transmission belt 241, thereby driving the rotating shaft 243 at the lower end of the transmission wheel 242 to rotate, ensuring that the rotating shaft 243 can rotate, thereby driving the inner wall cleaning assembly 25 and the stirring assembly 26 to work.

[0031] Furthermore, the inner wall cleaning assembly 25 includes a rotating rod 251 and a cleaning rubber rod 252. The rotating rod 251 is sleeved on the middle part of the rotating shaft 243, and the cleaning rubber rods 252 are fixedly connected on both sides of the rotating rod 251. When the rotating shaft 243 rotates, the rotating rod 251 is driven to rotate, and the cleaning rubber rods 252 are fixed on both sides of the rotating rod 251 close to the inner wall of the mixing tank 1. During the rotation process, the inner wall of the mixing tank 1 is kept clean to prevent lithium iron phosphate from adhering to the inner wall.

[0032] Furthermore, the stirring assembly 26 includes a stabilizing wheel 261, a stirring blade 262 and an arc-shaped stirring blade 263. The lower end of the rotating rod 251 is provided with a stabilizing wheel 261, the lower end of the stabilizing wheel 261 is sleeved with a stirring blade 262, the lower end of the stirring blade 262 is sleeved with an arc-shaped stirring blade 263, and the arc-shaped stirring blade 263 fits the bottom end of the stirring tank 1. During the stirring process, since the lithium iron phosphate slurry is relatively viscous, the arc-shaped stirring blade 263 can prevent the slurry from sticking to the bottom end of the stirring tank 1, thereby ensuring that the inner wall of the stirring tank 1 is clean and not corroded by the slurry.

[0033] Embodiment 2

[0034] See also Figure 1 and Figure 2 As shown, in comparison with Example 1, as another implementation mode of the utility model, the lower end of the stirring tank 1 is fixedly connected with a fixing component 3, and the fixing component 3 includes a fixing rod 31, a support rod 32 and a protective ring 33. The two sides of the stirring tank 1 are fixedly connected with the fixing rod 31, and the inside of the fixing rod 31 is fixedly connected with the support rod 32. The upper end of the fixing rod 31 is welded with a protective ring 33. During the operation of the stirring tank 1, corresponding vibrations will be generated, causing the stirring tank 1 to be unstable. The fixing component 3 is supported by the fixing rod 31 and the support rod 32 being welded to each other, thereby ensuring the working stability of the stirring tank 1, and a protective ring 33 is sleeved on the middle part of the stirring tank 1, thereby performing secondary fixation on the stirring tank 1, making its operation more stable.

[0035] Working principle: First, a lithium iron phosphate slurry agitator is installed at the designated use position. When in use, the first step is to fix and weld the triangular bracket 211 to the upper end of the mixing tank 1, and the upper end of the triangular bracket 211 is provided with a motor bracket 212, which can well support the driving motor 221 to ensure its good working condition. The second step is that the driving motor 221 drives the driving wheel 222 to rotate, and the driving wheel 222 drives the driving belt 223 to adjust the rotational motion, thereby driving the rotation of the upper driven wheel 231, and the driven wheel 231 is driven to rotate by the driving belt 223, and the driven wheel 231 converts the rotation direction through the converter 232 to drive the force wheel 23 3. Change the rotation angle. In the third step, the force wheel 233 drives the driving wheel 242 to rotate through the driving belt 241, thereby driving the rotating shaft 243 at the lower end of the driving wheel 242 to drive and rotate, ensuring that the rotating shaft 243 can rotate, thereby driving the inner wall cleaning component 25 and the stirring component 26 to work. During the rotation of the rotating shaft 243, the rotating rod 251 is driven to rotate, and the cleaning rubber rod 252 is fixed on both sides of the rotating rod 251 close to the inner wall of the stirring tank 1. During the rotation process, the cleaning of the inner wall of the stirring tank 1 is ensured, and the lithium iron phosphate is prevented from adhering to the inner wall, thereby ensuring the cleaning of the inner wall of the stirring tank 1. In this way, the use process of a lithium iron phosphate slurry agitator is completed.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium iron phosphate slurry agitator, comprising a stirring tank (1) and a cleaning stirring mechanism (2), characterized in that: The stirring tank (1) is provided with a cleaning stirring mechanism (2) inside; The cleaning and stirring mechanism (2) comprises a supporting assembly (21), a driving assembly (22), a conversion assembly (23), a transmission assembly (24), an inner wall cleaning assembly (25) and a stirring assembly (26); one side of the stirring tank (1) is fixedly connected to the supporting assembly (21); the upper end of the supporting assembly (21) is threadedly connected to the driving assembly (22); the upper side of the driving assembly (22) is provided with a conversion assembly (23); one side of the conversion assembly (23) is sleeved with the transmission assembly (24); the lower end of the transmission assembly (24) is fixedly connected to the inner wall cleaning assembly (25); and one side of the inner wall cleaning assembly (25) is provided with a stirring assembly (26).

2. A lithium iron phosphate slurry agitator according to claim 1, characterized in that: The support assembly (21) comprises a triangular bracket (211) and a motor bracket (212); the triangular bracket (211) is welded to the upper end of the stirring tank (1); and the motor bracket (212) is fixedly connected to the upper end of the triangular bracket (211).

3. A lithium iron phosphate slurry agitator according to claim 2, characterized in that: The driving assembly (22) comprises a driving motor (221), a driving wheel (222) and a driving belt (223); the upper end of the motor bracket (212) is threadedly connected to the driving motor (221); one side of the driving motor (221) is keyed to the driving wheel (222); and the driving belt (223) is sleeved inside the driving wheel (222).

4. A lithium iron phosphate slurry agitator according to claim 3, characterized in that: The conversion assembly (23) comprises a driven wheel (231), a converter (232) and a force-bearing wheel (233); the upper end of the driving belt (223) is sleeved with the driven wheel (231); one side of the driven wheel (231) is threadedly connected to the converter (232); and the upper end of the converter (232) is rotatably connected to the force-bearing wheel (233).

5. A lithium iron phosphate slurry agitator according to claim 4, characterized in that: The transmission assembly (24) comprises a transmission belt (241), a transmission wheel (242) and a rotating shaft (243); the transmission belt (241) is sleeved on the surface of the force-bearing wheel (233); the transmission wheel (242) is sleeved on the other side of the transmission belt (241); and the lower end of the transmission wheel (242) is fixedly connected to the rotating shaft (243).

6. A lithium iron phosphate slurry agitator according to claim 5, characterized in that: The inner wall cleaning assembly (25) comprises a rotating rod (251) and a cleaning rubber rod (252); the rotating rod (251) is sleeved in the middle of the rotating shaft (243); and the cleaning rubber rods (252) are fixedly connected to both sides of the rotating rod (251).

7. A lithium iron phosphate slurry agitator according to claim 6, characterized in that: The stirring assembly (26) comprises a stabilizing wheel (261), a stirring blade (262) and an arc-shaped stirring blade (263); the lower end of the rotating rod (251) is provided with a stabilizing wheel (261); the lower end of the stabilizing wheel (261) is sleeved with the stirring blade (262); the lower end of the stirring blade (262) is sleeved with the arc-shaped stirring blade (263).

8. The lithium iron phosphate slurry agitator according to claim 1, characterized in that: The lower end of the stirring tank (1) is fixedly connected to a fixing assembly (3), the fixing assembly (3) comprising a fixing rod (31), a supporting rod (32) and a protective ring (33), the two sides of the stirring tank (1) are fixedly connected to the fixing rod (31), the interior of the fixing rod (31) is fixedly connected to the supporting rod (32), and the upper end of the fixing rod (31) is welded to a protective ring (33).

Citation Information

Patent Citations

  • Efficient stirrer applied to lithium iron phosphate slurry

    CN218189021U