Rapid dispersing and mixing device for lithium iron phosphate slurry

Abstract

The utility model relates to the technical field of lithium iron phosphate slurry mixing, and discloses a lithium iron phosphate slurry rapid dispersing and mixing device which comprises a base, an electric sliding rail is fixedly connected to the top of the base, a support is slidably connected to the interior of the electric sliding rail, a mixing barrel is arranged in the support, a supporting rod is fixedly connected to the top of the electric sliding rail, and the supporting rod is fixedly connected to the bottom of the base. A driving assembly is arranged at the top of the supporting rod, a mixing assembly is arranged in the supporting rod, and a polymerization assembly is arranged in the material mixing barrel; and the polymerization assembly comprises a polymerization barrel, and the outer wall of the polymerization barrel is fixedly connected to the interior of the mixing barrel. According to the utility model, ingredients enter the annular pipe through the feeding pipe and are sprayed out from the nozzle, so that the ingredients are in direct contact with the longitudinal stirring plate and the transverse stirring plate, and the flow speed of liquid is increased through the threaded groove, thereby achieving the effect of improving the mixing efficiency and solving the problem that the mixing time of the stirring blades is longer as raw materials are dispersed and deposited at the bottom of the mixing barrel; and the processing efficiency of the dispersing and mixing device is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium iron phosphate slurry mixing technology, and in particular to a rapid dispersion and mixing device for lithium iron phosphate slurry. Background Technology

[0002] Lithium iron phosphate slurry is a key intermediate material used in the manufacture of lithium-ion batteries, primarily for producing lithium iron phosphate (LiFePO4, LFP) cathode sheets. Its composition and properties directly affect the quality of the cathode sheet and the performance of the battery. As cathode material particles, lithium iron phosphate needs to be uniformly dispersed in the slurry to avoid localized accumulation or particle agglomeration; therefore, a rapid dispersion and mixing device for lithium iron phosphate slurry is required.

[0003] Rapid dispersion and mixing devices for lithium iron phosphate slurry can be classified into several types, including high-speed dispersers, high-shear emulsifiers, and planetary mixers. Different types of rapid dispersion and mixing devices are adapted to different production process requirements. For the preparation of lithium iron phosphate slurry, it is usually necessary to select appropriate devices or combine multiple devices according to the slurry viscosity, particle dispersion requirements, and production scale to ensure optimal dispersion effect and production efficiency. Among them, high-speed dispersers generate strong shear force through high-speed rotating dispersion discs or blades to disperse solid particles into the liquid.

[0004] In traditional dispersing and mixing devices, the prolonged action time of the stirring blades or uneven dispersion of raw materials often leads to sedimentation at the bottom of the container during mixing. This not only increases mixing time but also results in low overall mixing efficiency. Furthermore, the ingredients are not sufficiently and uniformly dispersed after entering the mixing zone, affecting the final slurry quality. This problem leads to excessively long mixing times, low production efficiency, and increased production costs. Therefore, there is an urgent need for a mixing device that can improve the speed and efficiency of raw material dispersion. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid dispersion and mixing device for lithium iron phosphate slurry, which aims to improve the problem that the raw materials disperse and deposit at the bottom of the mixing tank during the mixing process, resulting in a long mixing time for the stirring blades.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid dispersion and mixing device for lithium iron phosphate slurry, comprising a base, an electric slide rail fixedly connected to the top of the base, a support slidably connected inside the electric slide rail, a mixing tank disposed inside the support, a support rod fixedly connected to the top of the electric slide rail, a driving component disposed at the top of the support rod, a mixing component disposed inside the support rod, and a polymerization component disposed inside the mixing tank;

[0007] The polymerization assembly includes a polymerization cylinder, the outer wall of which is fixedly connected to the inside of a mixing tank. The inside of the polymerization cylinder has a threaded groove, and an annular tube is fixedly connected to the inside of the polymerization cylinder. A feeding pipe is fixedly connected to the outer wall of the annular tube, and a nozzle is fixedly connected to the outer wall of the annular tube.

[0008] As a further description of the above technical solution:

[0009] The mixing component includes a rotating shaft rotatably connected inside a support rod, a conical cylinder fixedly connected to the outer wall of the rotating shaft, a longitudinal stirring plate fixedly connected to the outer wall of the rotating shaft, and a transverse stirring plate fixedly connected to the top of the longitudinal stirring plate.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes a motor, the outer wall of which is fixedly connected to the top of the support rod, and the output end of the motor is connected to one end of the rotating shaft.

[0012] As a further description of the above technical solution:

[0013] The bottom of the support rod is fixedly connected to a top cover, and the bottom of the top cover is fastened to the mixing barrel.

[0014] As a further description of the above technical solution:

[0015] The top cover has a connecting groove inside, and a protruding ring is fixedly connected inside the top cover.

[0016] As a further description of the above technical solution:

[0017] The top cover has a connecting ring inside, which fits into the connecting groove.

[0018] As a further description of the above technical solution:

[0019] A wedge-shaped sealing ring is fixedly connected to the bottom of the connecting ring, and the bottom of the wedge-shaped sealing ring is attached to the top of the mixing tank.

[0020] As a further description of the above technical solution:

[0021] The connecting ring has a slot inside, which engages with the convex ring.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the ingredients are first fed into the annular pipe through the feeding pipe and sprayed out from the nozzle, so that the ingredients directly contact the longitudinal stirring plate and the transverse stirring plate. At the same time, the liquid is guided in the threaded groove in the polymerization cylinder, which increases the flow rate of the liquid and achieves the effect of improving the mixing efficiency. This solves the problem that the raw materials are dispersed and deposited at the bottom of the mixing tank during the mixing process of the dispersion mixing device, resulting in a long mixing time for the stirring blades, and improves the processing efficiency of the dispersion mixing device.

[0024] 2. In this utility model, the wedge-shaped sealing ring is connected to the top cover by embedding the connecting ring into the connecting groove. At the same time, the wedge-shaped sealing ring and the connecting ring are engaged with the convex ring through the slot, which improves the sealing effect and solves the problem that the traditional sealing ring and the top cover have poor sealing when the top cover is fastened, which makes it easy for raw materials to seep between the sealing ring and the top cover. This improves the practicality of the dispersion and mixing device. Attached Figure Description

[0025] Figure 1 This is a perspective view of a rapid dispersion and mixing device for lithium iron phosphate slurry proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of a rapid dispersion and mixing device for lithium iron phosphate slurry proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the rotating shaft structure of a rapid dispersion and mixing device for lithium iron phosphate slurry proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the exploded structure of the transverse stirring plate of the rapid dispersion and mixing device for lithium iron phosphate slurry proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the top cover of a rapid dispersion and mixing device for lithium iron phosphate slurry proposed in this utility model.

[0030] Legend:

[0031] 1. Base; 2. Electric slide rail; 3. Support rod; 4. Bracket; 5. Mixing tank; 6. Aggregation cylinder; 7. Ring pipe; 8. Feeding pipe; 9. Nozzle; 10. Threaded groove; 11. Motor; 12. Rotating shaft; 13. Conical cylinder; 14. Longitudinal stirring plate; 15. Transverse stirring plate; 16. Top cover; 17. Connecting groove; 18. Protruding ring; 19. Connecting ring; 20. Wedge-shaped sealing ring; 21. Slot. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1-Figure 4 This utility model provides an embodiment of a rapid dispersion and mixing device for lithium iron phosphate slurry, comprising a base 1, an electric slide rail 2 fixedly connected to the top of the base 1, a support 4 slidably connected inside the electric slide rail 2, and a mixing tank 5 disposed inside the support 4. Through the sliding function of the electric slide rail 2, the support 4 can move vertically, thereby adjusting the position of the mixing tank 5 to meet different operational needs. A support rod 3 is fixedly connected to the top of the electric slide rail 2, and a drive assembly is disposed at the top of the support rod 3. The drive assembly provides power, enabling the support rod 3 to drive the movement of other components. A mixing assembly is disposed inside the support rod 3, and the mixing assembly is connected to the support rod 3 via a rotating shaft 12, which is responsible for driving the rotation of the mixing assembly. A polymerization assembly is disposed inside the mixing tank 5, which is used to fully mix liquid and solid raw materials and accelerate the dispersion of the raw materials.

[0034] The polymerization assembly includes a polymerization cylinder 6, whose outer wall is fixedly connected to the inside of a mixing tank 5. The polymerization cylinder 6 has a threaded groove 10 inside, designed to guide the flow of liquid or raw materials and increase the fluid rotation speed, thereby enhancing the mixing effect. An annular tube 7 is fixedly connected inside the polymerization cylinder 6, and a feeding pipe 8 is fixedly connected to the outer wall of the annular tube 7 for adding external ingredients into the mixing tank 5. A nozzle 9 is fixedly connected to the outer wall of the annular tube 7. The nozzle 9 is designed to precisely control the spray direction and flow rate of the ingredients, ensuring uniform contact between the ingredients and raw materials and promoting dispersion. The mixing assembly includes a rotating shaft 12, which is rotatably connected to the inside of a support rod 3. The rotating shaft 12 is driven to rotate by a motor 11, enabling the mixing device to produce a uniform stirring effect. A conical cylinder 13 is fixedly connected to the outer wall of the rotating shaft 12. The conical cylinder 13 guides the flow of the mixture and increases the fluid velocity, improving mixing efficiency. A longitudinal stirring plate 14 is fixedly connected to the outer wall of the rotating shaft 12. The design of the longitudinal stirring plate 14 enables it to stir the raw materials in the mixing tank 5 in the longitudinal direction, enhancing the movement and dispersion effect of the materials. A transverse stirring plate 15 is fixedly connected to the top of the longitudinal stirring plate 14. The transverse stirring plate 15, in cooperation with the longitudinal stirring plate 14, can cross-stir the materials, further improving the mixing uniformity. The drive assembly includes a motor 11, which is fixedly connected to the top of the support rod 3. The motor 11 provides the power source to drive the rotating shaft 12 to rotate, ensuring that the mixing assembly can operate efficiently and achieve the purpose of rapid dispersion and mixing of lithium iron phosphate slurry.

[0035] Specifically, during the mixing process, the required raw materials are first added to the mixing tank 5 to ensure the basic materials are ready. Then, external ingredients are precisely delivered to the mixing device via the feeding pipe 8. At this time, the support 4 is slidably lifted under the drive of the electric slide rail 2, allowing the mixing tank 5 to precisely engage with the top cover 16, forming a tight seal to prevent material leakage or the entry of external impurities during the mixing process. The ingredients enter the annular pipe 7 through the feeding pipe 8 and are evenly sprayed out through the nozzle 9, ensuring that the ingredients directly contact the longitudinal stirring plate 14 and the transverse stirring plate 15 in the form of atomization or a fine stream. Next, the output of the motor 11 drives the rotating shaft 12 to rotate at high speed, and the rotating shaft 12 synchronously drives the longitudinal stirring plate 14 and the transverse stirring plate 15 to move in coordination, achieving efficient mixing in multiple dimensions and angles. Meanwhile, the liquid is guided along the special structure of the threaded groove 10 within the polymerization cylinder 6, significantly increasing the liquid's rotational speed. The rotation of the shaft 12 further drives the cone 13, further increasing the liquid flow rate, thereby enhancing the overall mixing efficiency and uniformity. Through this combination of design and process, the goal of rapidly, efficiently, and uniformly mixing raw materials and ingredients is achieved, significantly improving the overall performance of the mixing device.

[0036] Reference Figure 5 A top cover 16 is fixedly connected to the bottom of the support rod 3. The bottom of the top cover 16 is engaged with the mixing tank 5 to ensure that the mixing tank 5 does not loosen during operation. A connecting groove 17 is provided inside the top cover 16 for connecting with other components, providing a stable connection base. A protruding ring 18 is fixedly connected inside the top cover 16, providing additional support for the connecting ring 19 and enhancing the firmness between the connecting ring 19 and the top cover 16, preventing loosening during operation. The connecting ring 19 is fitted into the connecting groove 17, ensuring a fixed connection between the top cover 16 and the support rod 3. The engagement of the connecting ring 19 with the connecting groove 17 provides stable structural support, preventing loosening or misalignment of components due to vibration or external forces. A wedge-shaped sealing ring 20 is fixedly connected to the bottom of the connecting ring 19. The main function of the wedge-shaped sealing ring 20 is to ensure the seal between the top cover 16 and the mixing tank 5, preventing material leakage. During the sealing process, the bottom of the wedge-shaped sealing ring 20 adheres to the top of the mixing tank 5, improving the sealing effect through tight contact and ensuring that materials do not leak during operation, thereby enhancing the safety and reliability of the device. The connecting ring 19 has a groove 21 inside, which engages with the convex ring 18. The cooperation between the groove 21 and the convex ring 18 makes the connection between the top cover 16 and the mixing tank 5 more secure, effectively preventing the top cover 16 from loosening or shifting during operation. The combined design of these components ensures the stability and efficiency of the entire mixing device during operation.

[0037] Specifically, when the top cover 16 and the mixing tank 5 are engaged, the wedge-shaped sealing ring 20 seals the entire interface area, ensuring no gas leakage or impurity intrusion during the mixing process. The wedge-shaped sealing ring 20 is embedded in the connecting groove 17 via a precisely designed connecting ring 19, achieving a stable connection with the top cover 16 and keeping the sealing ring firmly in place. Simultaneously, the precise engagement of the wedge-shaped sealing ring 20 and the connecting ring 19 via the slot 21 and the convex ring 18 further strengthens the connection. This unique structural design significantly enhances the connection strength between the wedge-shaped sealing ring 20 and the top cover 16, while also improving the reliability of the sealing performance. This multi-layered sealing method not only effectively prevents potential sealing problems during operation but also withstands the effects of high-pressure environments, ensuring the overall safety and operational efficiency of the device, ultimately achieving a significant improvement in sealing performance.

[0038] Working principle: When using this lithium iron phosphate slurry rapid dispersion and mixing device, the raw materials are first added into the mixing tank 5, and then the feeding pipe 8 is connected to the external batching. Then the support 4 slides and rises in the electric slide rail 2, so that the mixing tank 5 and the top cover 16 are fastened and sealed. Then the batching enters the annular pipe 7 through the feeding pipe 8 and is sprayed out from the nozzle 9, so that the batching directly contacts the longitudinal stirring plate 14 and the transverse stirring plate 15. Then the output end of the motor 11 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the longitudinal stirring plate 14 and the transverse stirring plate 15 to rotate, so that the raw materials are directly mixed with the batching through the cooperation of the longitudinal stirring plate 14 and the transverse stirring plate 15. At the same time, the liquid is guided in the threaded groove 10 in the polymerization cylinder 6 to increase the liquid flow rate. Meanwhile, the rotating shaft 12 drives the cone cylinder 13 to further increase the liquid flow rate, thereby improving the mixing efficiency.

[0039] When the top cover 16 is fastened to the mixing tank 5, it is sealed by the wedge-shaped sealing ring 20. The wedge-shaped sealing ring 20 is embedded in the connecting groove 17 through the connecting ring 19 and connected to the top cover 16. At the same time, the wedge-shaped sealing ring 20 and the connecting ring 19 are engaged with the convex ring 18 through the slot 21, which further improves the connection strength and sealing performance between the wedge-shaped sealing ring 20 and the top cover 16, thus achieving the effect of improving the sealing performance.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid dispersion and mixing device for lithium iron phosphate slurry, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of an electric slide rail (2), and a bracket (4) is slidably connected inside the electric slide rail (2). A mixing tank (5) is provided inside the bracket (4). A support rod (3) is fixedly connected to the top of the electric slide rail (2). A driving component is provided on the top of the support rod (3). A mixing component is provided inside the support rod (3). An aggregation component is provided inside the mixing tank (5). The polymerization assembly includes a polymerization cylinder (6), the outer wall of which is fixedly connected to the inside of a mixing tank (5). A threaded groove (10) is provided inside the polymerization cylinder (6). An annular tube (7) is fixedly connected inside the polymerization cylinder (6). A feeding pipe (8) is fixedly connected to the outer wall of the annular tube (7). A nozzle (9) is fixedly connected to the outer wall of the annular tube (7).

2. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 1, characterized in that: The mixing assembly includes a rotating shaft (12) which is rotatably connected inside the support rod (3). A cone (13) is fixedly connected to the outer wall of the rotating shaft (12). A longitudinal stirring plate (14) is fixedly connected to the outer wall of the rotating shaft (12). A transverse stirring plate (15) is fixedly connected to the top of the longitudinal stirring plate (14).

3. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 1, characterized in that: The drive assembly includes a motor (11), the outer wall of which is fixedly connected to the top of the support rod (3), and the output end of the motor (11) is connected to one end of the rotating shaft (12).

4. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 1, characterized in that: The bottom of the support rod (3) is fixedly connected to a top cover (16), and the bottom of the top cover (16) is engaged with the mixing tank (5).

5. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 4, characterized in that: The top cover (16) has a connecting groove (17) inside, and a protruding ring (18) is fixedly connected inside the top cover (16).

6. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 5, characterized in that: The top cover (16) is provided with a connecting ring (19) inside, and the connecting ring (19) is fitted into the connecting groove (17).

7. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 6, characterized in that: The bottom of the connecting ring (19) is fixedly connected to a wedge-shaped sealing ring (20), and the bottom of the wedge-shaped sealing ring (20) is attached to the top of the mixing tank (5).

8. The rapid dispersion and mixing device for lithium iron phosphate slurry according to claim 7, characterized in that: The connecting ring (19) has a slot (21) inside, which is engaged with the protruding ring (18).

Images