Lithium battery positive electrode slurry dispersant production tank

Abstract

The utility model discloses a lithium battery positive electrode slurry dispersant production tank, which comprises a placing rack and a production tank body, the production tank body is installed and connected on the middle position of the upper end of the placing rack, the lower end of the production tank body is provided with a material discharging conical shell, the lower end of the material discharging conical shell is provided with an electromagnetic valve pipe, and the electromagnetic valve pipe is connected with the production tank body. A tank body top cover is arranged at the upper end of the production tank body, a motor stirring rod is arranged in the middle of the upper end of the tank body top cover and located in the production tank body, and a rotary lifting lead screw mechanism is arranged on the outer side of the motor stirring rod and located on the tank body top cover; and the lithium battery positive electrode slurry dispersing agent material attached to the inner wall of the production tank body is cleaned from top to bottom through a lifting cleaning ring on the peripheral side of the rotary lifting lead screw mechanism, so that the lithium battery positive electrode slurry dispersing agent material can quickly fall into a discharging conical shell to be discharged, and the overall discharging efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of positive electrode slurry for lithium batteries, and in particular to a production tank for a dispersant for positive electrode slurry for lithium batteries. Background Art

[0002] The preparation of positive electrode slurry for lithium-ion batteries is the first step in the battery manufacturing process. It is the basis of the battery cell production and manufacturing process and one of the important processes that determine whether the electrode sheet can meet the battery cell design requirements. The main function of the dispersant in the positive electrode slurry is to dissolve the binder and provide a good carrier for the active substance to disperse it more evenly. In the coating stage, the dispersant is required to have good wettability and fluidity on the metal substrate and good volatility during baking. During the production and processing of lithium battery positive electrode slurry dispersant, a lithium battery positive electrode slurry dispersant production tank is required.

[0003] The existing Chinese patent CN212348635U disclosed on January 15, 2021 a high-efficiency mixing dispersant additive production tank, including a tank body and a stirring paddle. A tank cavity for mixing raw materials is provided in the tank body, and an inlet is provided on the top of the tank body for allowing the raw materials to enter the tank cavity. The stirring paddle is rotatably arranged in the tank cavity. A feed pipe extending vertically is provided in the tank cavity. The upper end of the feed pipe is connected to the feed port, and the lower end of the feed pipe is closed. A number of discharge ports are provided on the outer periphery of the feed pipe, and each discharge port is arranged along the axial direction of the feed pipe.

[0004] However, when discharging after the reaction production, the dispersant attached to the inner wall of the tank body of the above device cannot fall down quickly and discharge, and it takes a certain amount of time to fall down and discharge. There is a lack of auxiliary discharge structure, resulting in low discharge efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery positive electrode slurry dispersant production tank to solve the problem that after the reaction production, when discharging the tank body of the above-mentioned device proposed in the above-mentioned background technology, the dispersant attached to the inner wall of the tank body cannot fall down quickly and discharge, and it takes a certain time to fall down and discharge, and there is a lack of auxiliary structure for discharging, resulting in low discharging efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery positive electrode slurry dispersant production tank, comprising a placement rack and a production tank body, the production tank body is installed and connected to the upper middle position of the placement rack, the lower end of the production tank body is provided with a discharge cone shell, the lower end of the discharge cone shell is provided with an electromagnetic valve tube, the upper end of the production tank body is provided with a tank top cover, the middle of the upper end of the tank top cover is located inside the production tank body with a motor stirring rod, the outer side of the motor stirring rod is located on the tank top cover and a rotating lifting screw mechanism is provided, the peripheral side of the rotating lifting screw mechanism is located inside the production tank body and a lifting cleaning ring is provided, the motor stirring rod, the rotating lifting screw mechanism and the electromagnetic valve tube are electrically connected to an external controller.

[0007] Among them, the tank top cover includes a first lithium battery positive electrode slurry dispersant feed pipe, a top cover shell, a second lithium battery positive electrode slurry dispersant feed pipe, a positioning sleeve and an observation window, the observation window is installed and connected to the top cover shell, and the left and right sides of the observation window are located on the top cover shell and the second lithium battery positive electrode slurry dispersant feed pipe and the first lithium battery positive electrode slurry dispersant feed pipe are arranged in sequence, and the left side of the second lithium battery positive electrode slurry dispersant feed pipe is located on the top cover shell and a positioning sleeve is arranged, the positioning sleeve is connected to the rotating lifting screw mechanism, and the top cover shell is connected to the production tank body.

[0008] Among them, the rotating lifting screw mechanism includes a bottom bearing, a metal screw, a coupling and a rotating motor. The coupling is installed and connected to the output end of the rotating motor. A metal screw is arranged at the lower end of the coupling. A bottom bearing is arranged on the circumference of the lower end of the metal screw. The bottom bearing is connected to the production tank body, the metal screw is connected to the lifting and cleaning ring, and the rotating motor is connected to the top cover of the tank body.

[0009] Among them, the lifting and cleaning ring includes an internal sleeve cavity, a screw sleeve and a cleaning movable ring. The internal sleeve cavity is arranged in the middle of the cleaning movable ring, and the inner side of the cleaning movable ring is arranged. The screw sleeve is connected to the rotating lifting screw mechanism, and the cleaning movable ring is connected to the production tank body.

[0010] The cleaning movable ring is sleeved inside the production tank body, and the outer circumferential surface of the cleaning movable ring is tangent to the inner wall of the production tank body.

[0011] Wherein, the production tank body includes a tank shell, a reaction chamber, a bearing placement plate and a positioning ear plate. The reaction chamber is arranged inside the tank shell, and a bearing placement plate is arranged on the inner side of the reaction chamber at the bottom end of the inner wall of the tank shell. A positioning ear plate is arranged on the peripheral side of the lower end of the tank shell. The tank shell is connected to the placement frame through the positioning ear plate, and the bearing placement plate is connected to the rotating lifting screw mechanism.

[0012] Wherein, the tank body top cover and the production tank body are connected by screws, and the connection between the tank body top cover and the production tank body is aligned.

[0013] In summary, due to the adoption of the above technology, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a rotating lifting screw mechanism structure is provided, so that the lifting and cleaning ring can be driven to lift and move for cleaning. The rotating motor of the rotating lifting screw mechanism is connected to the tank top cover through screws. When the output end of the rotating motor rotates, the rotating motor can drive the coupling to rotate, and the coupling drives the metal screw to rotate. When the metal screw rotates in the positive direction, the lifting and cleaning ring on the side of the metal screw moves from top to bottom, and then the lifting and cleaning ring can clean the attachments on the inner wall of the production tank, so as to effectively improve the discharge efficiency. When the metal screw rotates, the bottom end of the metal screw is effectively limited and rotated due to the bottom bearing, and the bottom bearing is installed on the bearing mounting plate at the inner wall of the production tank, so that the rotation stability of the metal screw can be effectively maintained.

[0015] 2. In the utility model, a lifting and cleaning ring structure is provided, which can be lifted and moved for cleaning. The screw sleeve of the lifting and cleaning ring is connected to the metal screw of the rotating lifting and cleaning screw mechanism, so that when the metal screw rotates in the positive direction, the screw sleeve moves from top to bottom around the metal screw, and the screw sleeve drives the cleaning moving ring to move from top to bottom. The cleaning moving ring is sleeved inside the production tank body, and the circumferential outer side of the cleaning moving ring is tangent to the inner wall of the production tank body. In this way, the cleaning moving ring can clean the attachments on the inner wall of the production tank body when moving, thereby accelerating the falling of materials and improving the discharge efficiency. The cleaning moving ring has an area of ​​the internal sleeve cavity, so that the stirring rod body of the motor stirring rod can pass through for stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a lithium battery positive electrode slurry dispersant production tank of the utility model;

[0017] Figure 2 This is a schematic diagram of the tank top cover structure of a lithium battery positive electrode slurry dispersant production tank of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a rotating lifting screw mechanism of a lithium battery positive electrode slurry dispersant production tank of the utility model;

[0019] Figure 4 This is a schematic diagram of the lifting and cleaning ring structure of a lithium battery positive electrode slurry dispersant production tank of the utility model;

[0020] Figure 5The utility model is a schematic diagram of the production tank structure of a lithium battery positive electrode slurry dispersant production tank.

[0021] In the figure: 1. Motor stirring rod; 2. Tank top cover; 21. First lithium battery positive electrode slurry dispersant feed pipe; 22. Top cover shell; 23. Second lithium battery positive electrode slurry dispersant feed pipe; 24. Positioning sleeve; 25. Observation window; 3. Rotating lifting screw mechanism; 31. Bottom bearing; 32. Metal screw; 33. Coupling; 34. Rotating motor; 4. Lifting cleaning ring; 41. Internal sleeve cavity; 42. Screw sleeve; 43. Cleaning moving ring; 5. Placement rack; 6. Production tank; 61. Tank shell; 62. Reaction chamber; 63. Bearing placement plate; 64. Positioning ear plate; 7. Discharge cone shell; 8. Solenoid valve tube. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0023] Embodiment 1

[0024] Reference Figure 1 , Figure 2 and Figure 5A lithium battery positive electrode slurry dispersant production tank, comprising a placement rack 5 and a production tank body 6, the production tank body 6 is installed and connected to the middle position of the upper end of the placement rack 5, the lower end of the production tank body 6 is provided with a discharge cone shell 7, the lower end of the discharge cone shell 7 is provided with an electromagnetic valve tube 8, the upper end of the production tank body 6 is provided with a tank body top cover 2, the upper middle of the tank body top cover 2 is located inside the production tank body 6 and a motor stirring rod 1 is provided, the outer side of the motor stirring rod 1 is located on the tank body top cover 2 and a rotating lifting screw mechanism 3 is provided, the peripheral side of the rotating lifting screw mechanism 3 is located inside the production tank body 6 and a lifting cleaning ring 4 is provided, the motor stirring rod 1, the rotating lifting screw mechanism 3 and the electromagnetic valve tube 8 are connected to the outer The internal controller is electrically connected. When in use, the tank top cover 2 receives the lithium battery positive electrode slurry dispersant production materials transported by the external pipeline, and the materials fall into the production tank body 6 and the discharge cone shell 7 through the tank top cover 2, and then are stirred and mixed by the motor stirring rod 1 to produce the lithium battery positive electrode slurry dispersant. After that, the electromagnetic valve tube 8 is opened to facilitate discharge and collection. The lithium battery positive electrode slurry dispersant material attached to the inner wall of the production tank body 6 is cleaned from top to bottom by the lifting and cleaning ring 4 on the side of the rotating lifting screw mechanism 3, so that the lithium battery positive electrode slurry dispersant material can quickly fall into the discharge cone shell 7 for discharge, thereby effectively improving the overall discharge efficiency.

[0025] In the utility model, the tank top cover 2 includes a first lithium battery positive electrode slurry dispersant feed pipe 21, a top cover shell 22, a second lithium battery positive electrode slurry dispersant feed pipe 23, a positioning sleeve 24 and an observation window 25, the observation window 25 is installed and connected to the top cover shell 22, and the left and right sides of the observation window 25 are located on the top cover shell 22 and are sequentially provided with the second lithium battery positive electrode slurry dispersant feed pipe 23 and the first lithium battery positive electrode slurry dispersant feed pipe 21, the left side of the second lithium battery positive electrode slurry dispersant feed pipe 23 is located on the top cover shell 22 and is provided with a positioning sleeve 24, and the positioning sleeve The tube 24 is connected to the rotating lifting screw mechanism 3, the top cover shell 22 is connected to the production tank body 6, and the top cover shell 22 of the tank body top cover 2 is connected to the production tank body 6 by screws, so that the top cover shell 22 is easy to install and place. The top cover shell 22 has an observation window 25 at the upper end, which makes it easy for personnel to observe. The corresponding lithium battery positive electrode slurry dispersant production materials can be added through the second lithium battery positive electrode slurry dispersant feed pipe 23 and the first lithium battery positive electrode slurry dispersant feed pipe 21. By positioning the base position of the sleeve 24, the rotating lifting screw mechanism 3 is convenient for corresponding installation and placement.

[0026] In the utility model, the production tank body 6 includes a tank body shell 61, a reaction chamber 62, a bearing placement plate 63 and a positioning ear plate 64. The reaction chamber 62 is arranged inside the tank body shell 61. The inner side of the reaction chamber 62 is provided with a bearing placement plate 63 at the bottom end of the inner wall of the tank body shell 61. The lower end circumference of the tank body shell 61 is provided with a positioning ear plate 64. The tank body shell 61 is connected to the placement rack 5 through the positioning ear plate 64. The bearing placement plate 63 is connected to the rotating lifting screw mechanism 3. The tank body shell 61 of the production tank body 6 is welded to the placement rack 5 through the positioning ear plate 64, so that the tank body shell 61 is easy to install and place. Due to the area of ​​the reaction chamber 62, the tank body shell 61 can store lithium battery positive electrode slurry dispersant materials for reaction production. The bearing placement plate 63 at the bottom end of the tank body shell 61 allows the bottom end of the rotating lifting screw mechanism 3 to be installed and placed accordingly.

[0027] In the utility model, the tank top cover 2 and the production tank body 6 are connected by screws, and the connection between the tank top cover 2 and the production tank body 6 is aligned, so as to facilitate installation and fixation, and the outer sides are aligned, so that no obstruction occurs during use.

[0028] Working principle: When in use, the tank top cover 2 receives the lithium battery positive electrode slurry dispersant production materials transported by the external pipeline, and the materials fall into the production tank body 6 and the discharge cone shell 7 through the tank top cover 2, and then are stirred and mixed by the motor stirring rod 1 to produce the lithium battery positive electrode slurry dispersant. After that, the electromagnetic valve tube 8 is opened to facilitate discharge and collection. The lithium battery positive electrode slurry dispersant material attached to the inner wall of the production tank body 6 is cleaned from top to bottom by the lifting and cleaning ring 4 on the side of the rotating lifting screw mechanism 3, so that the lithium battery positive electrode slurry dispersant material can quickly fall into the discharge cone shell 7 for discharge, thereby effectively improving the overall discharge efficiency.

[0029] Embodiment 2

[0030] Reference Figure 1 Figure 3 and Figure 5 , a lithium battery positive electrode slurry dispersant production tank. Compared with the first embodiment, the present embodiment comprises a rotating lifting screw mechanism 3 including a bottom bearing 31, a metal screw 32, a coupling 33 and a rotating motor 34. The coupling 33 is installed and connected to the output end of the rotating motor 34. The lower end of the coupling 33 is provided with a metal screw 32. The lower end circumference of the metal screw 32 is provided with a bottom bearing 31. The bottom bearing 31 is connected to the production tank body 6. The metal screw 32 is connected to the lifting cleaning ring 4. The rotating motor 34 is connected to the tank body top cover 2.

[0031] Working principle: The rotating motor 34 that rotates the lifting screw mechanism 3 is connected to the tank top cover 2 through screws. When the output end of the rotating motor 34 rotates, the rotating motor 34 can drive the coupling 33 to rotate, and the coupling 33 drives the metal screw 32 to rotate. When the metal screw 32 rotates in the positive direction, the lifting and cleaning ring 4 on the side of the metal screw 32 moves from top to bottom, and then the lifting and cleaning ring 4 can clean the attachments on the inner wall of the production tank body 6, so as to effectively improve the discharge efficiency. When the metal screw 32 rotates, the bottom end of the metal screw 32 is effectively limited to rotate due to the bottom bearing 31, and the bottom bearing 31 is installed on the bearing mounting plate 63 at the inner wall of the production tank body 6, so that the rotation stability of the metal screw 32 can be effectively maintained.

[0032] Embodiment 3

[0033] Reference Figure 1-Figure 4 , a lithium battery positive electrode slurry dispersant production tank, compared with the second embodiment, the lifting cleaning ring 4 of this embodiment includes an internal sleeve cavity 41, a screw sleeve 42 and a cleaning moving ring 43, the cleaning moving ring 43 is provided with an internal sleeve cavity 41 in the middle, the inner side of the cleaning moving ring 43 is provided with a screw sleeve 42, the screw sleeve 42 is connected to the rotating lifting screw mechanism 3, and the cleaning moving ring 43 is connected to the production tank body 6;

[0034] The cleaning movable ring 43 is sleeved inside the production tank body 6 , and the circumferential outer side of the cleaning movable ring 43 is tangent to the inner wall of the production tank body 6 .

[0035] Working principle: the screw sleeve 42 of the lifting and cleaning ring 4 is connected to the metal screw 32 of the rotating lifting and cleaning screw mechanism 3, so that when the metal screw 32 rotates in the forward direction, the screw sleeve 42 moves from top to bottom around the metal screw 32, and the screw sleeve 42 drives the cleaning movable ring 43 to move from top to bottom. The cleaning movable ring 43 is sleeved on the inside of the production tank body 6, and the circumferential outer side of the cleaning movable ring 43 is tangent to the inner wall of the production tank body 6, so that the cleaning movable ring 43 can clean the attachments on the inner wall of the production tank body 6 when moving, thereby accelerating the falling of materials and improving the discharge efficiency. The cleaning movable ring 43 has an area of ​​the internal sleeve cavity 41, so that the stirring rod body of the motor stirring rod 1 can pass through for stirring.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A lithium battery positive electrode slurry dispersant production tank, comprising a placement rack (5) and a production tank body (6), wherein the production tank body (6) is installed and connected to the middle position of the upper end of the placement rack (5), a discharge cone shell (7) is arranged at the lower end of the production tank body (6), and an electromagnetic valve tube (8) is arranged at the lower end of the discharge cone shell (7), characterized in that: The upper end of the production tank body (6) is provided with a tank body top cover (2), a motor stirring rod (1) is provided in the middle of the upper end of the tank body top cover (2) and inside the production tank body (6), a rotating lifting screw mechanism (3) is provided on the outer side of the motor stirring rod (1) and on the tank body top cover (2), a lifting cleaning ring (4) is provided on the peripheral side of the rotating lifting screw mechanism (3) and inside the production tank body (6), and the motor stirring rod (1), the rotating lifting screw mechanism (3) and the electromagnetic valve tube (8) are electrically connected to an external controller.

2. A lithium battery positive electrode slurry dispersant production tank according to claim 1, characterized in that: The tank body top cover (2) comprises a first lithium battery positive electrode slurry dispersant feed pipe (21), a top cover shell (22), a second lithium battery positive electrode slurry dispersant feed pipe (23), a positioning sleeve (24) and an observation window (25); the observation window (25) is mounted and connected to the top cover shell (22); the left and right sides of the observation window (25) are located on the top cover shell (22) and are provided with the second lithium battery positive electrode slurry dispersant feed pipe (23) and the first lithium battery positive electrode slurry dispersant feed pipe (21) in sequence; the left side of the second lithium battery positive electrode slurry dispersant feed pipe (23) is located on the top cover shell (22) and is provided with a positioning sleeve (24); the positioning sleeve (24) is connected to the rotating lifting screw mechanism (3); and the top cover shell (22) is connected to the production tank body (6).

3. The lithium battery positive electrode slurry dispersant production tank according to claim 1, characterized in that: The rotating lifting screw mechanism (3) comprises a bottom bearing (31), a metal screw (32), a coupling (33) and a rotating motor (34); the coupling (33) is mounted and connected to the output end of the rotating motor (34); a metal screw (32) is arranged at the lower end of the coupling (33); a bottom bearing (31) is arranged on the circumference of the lower end of the metal screw (32); the bottom bearing (31) is connected to the production tank body (6); the metal screw (32) is connected to the lifting cleaning ring (4); and the rotating motor (34) is connected to the tank body top cover (2).

4. The lithium battery positive electrode slurry dispersant production tank according to claim 1, characterized in that: The lifting cleaning ring (4) comprises an internal sleeve cavity (41), a screw sleeve (42) and a cleaning movable ring (43); the internal sleeve cavity (41) is arranged in the middle of the cleaning movable ring (43); the inner side of the cleaning movable ring (43) is arranged with a screw sleeve (42); the screw sleeve (42) is connected to the rotating lifting screw mechanism (3); and the cleaning movable ring (43) is connected to the production tank body (6).

5. A lithium battery positive electrode slurry dispersant production tank according to claim 4, characterized in that: The cleaning movable ring (43) is sleeved inside the production tank body (6), and the outer circumferential surface of the cleaning movable ring (43) is tangent to the inner wall of the production tank body (6).

6. The lithium battery positive electrode slurry dispersant production tank according to claim 1, characterized in that: The production tank body (6) comprises a tank body shell (61), a reaction chamber (62), a bearing placement plate (63) and a positioning ear plate (64); the reaction chamber (62) is arranged inside the tank body shell (61); the inner side of the reaction chamber (62) is provided with a bearing placement plate (63) at the bottom end of the inner wall of the tank body shell (61); the lower end circumference of the tank body shell (61) is provided with a positioning ear plate (64); the tank body shell (61) is connected to the placement frame (5) through the positioning ear plate (64); and the bearing placement plate (63) is connected to the rotating lifting screw mechanism (3).

7. The lithium battery positive electrode slurry dispersant production tank according to claim 1, characterized in that: The tank body top cover (2) and the production tank body (6) are connected by screws, and the connection between the tank body top cover (2) and the production tank body (6) is aligned.

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