CN215655155U - Ternary precursor reaction kettle for lithium ion battery - Google Patents
Ternary precursor reaction kettle for lithium ion battery Download PDFInfo
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- CN215655155U CN215655155U CN202122060685.7U CN202122060685U CN215655155U CN 215655155 U CN215655155 U CN 215655155U CN 202122060685 U CN202122060685 U CN 202122060685U CN 215655155 U CN215655155 U CN 215655155U
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Abstract
The utility model relates to the technical field of battery production, and discloses a ternary precursor reaction kettle for a lithium ion battery, which comprises: a reaction kettle body; the first driving assembly comprises a stirring motor and a stirring piece, the stirring piece comprises a stirring paddle, a turbine and an anti-deposition inclined paddle which are coaxially distributed from top to bottom in sequence, and a first blade of the stirring paddle, a fan blade of the turbine and a second blade of the anti-deposition inclined paddle are arranged at included angles with the horizontal plane; the second drive assembly comprises a dispersion motor and a dispersion disc, and the dispersion motor can drive the dispersion disc to rotate so as to disperse the slurry in the reaction kettle body. The lithium ion battery ternary precursor reaction kettle disclosed by the utility model can realize the increase of the circulation flow and the mutual matching of axial flow, radial flow and shearing force on the premise of not increasing the stirring power of the stirring motor, thereby meeting the requirements of ternary precursors of different types and production modes.
Description
Technical Field
The utility model relates to the technical field of battery production, in particular to a ternary precursor reaction kettle for a lithium ion battery.
Background
The rapid development of the lithium ion battery industry drives the development of positive electrode materials such as ternary positive electrode materials, and the demand of corresponding ternary precursors is continuously increased. The ternary cathode material is prepared by taking nickel hydroxide, cobalt and manganese hydroxide as a ternary precursor and then sintering at a high temperature. The coprecipitation reaction is carried out in a reaction kettle, the structure of the reaction kettle has a crucial influence on various performances of the ternary precursor, specifically, reaction raw materials are directly introduced into the bottom of the reaction kettle from a feeding port of the reaction kettle, a stirring device in the reaction kettle continuously stirs in the feeding process, and finally, a finished product flows out from a discharging port.
The performance improvement of the anode material for the lithium ion battery puts higher and higher requirements on the performance of the ternary precursor, such as high purity requirement, spherical shape of the granular crystal, narrow particle size distribution, high tap density and the like. Due to different application scenes of the anode materials, the requirements on the ternary precursor tend to be subdivided, for example, the crystal structure is divided into a single crystal form and a polycrystalline form, the production mode is divided into a continuous method and a discontinuous method, and the process is divided into concentration and non-concentration. The structure of the reaction kettle has a crucial influence on the performance of the ternary precursor, such as the structure of the reaction kettle, the form of a stirring paddle, the power of a stirring motor and the like, and the structure of the reaction kettle has a certain difference for producing the ternary precursors with different performances, so that the uniformity is difficult to achieve.
The fluid in the reaction kettle is divided into axial flow and radial flow, the axial flow is the fluid movement along the direction of the stirring shaft, so that the up-and-down circulation flow is provided for the slurry in the reaction kettle; the radial flow is the fluid movement along the blade direction of the stirring paddle, the flow direction of the fluid movement is perpendicular to the axial flow direction, the transverse diffusion flow is mainly provided for the fluid in the reaction kettle, the fluid direction in the reaction kettle is usually a mixed flow type of axial flow and radial flow, and the stirring paddles in different forms can provide mixed flow of the axial flow and the radial flow with different distribution ratios. In addition, the different types of ternary precursors have different shearing forces provided by the stirring paddle, for example, the single crystal small-particle ternary precursor needs higher shearing force, while most of the large particles have smaller requirement on the shearing force but larger requirement on the circulating flow.
The existing reaction kettle is generally provided with stirring paddles with different quantities and different forms on a stirring shaft to provide axial flow and radial flow with different sizes, and shear force with different sizes is provided by adjusting the angle between the paddle of the stirring paddle and the horizontal plane. In addition, in order to provide greater circulation flow and shear forces, the agitator motor is typically a high power motor. Therefore, the main drawbacks of the existing reactor structure are: (1) the same stirring shaft is adopted to drive stirring paddles in different forms and quantities, so that the perfect combination of axial flow, radial flow and shearing force is difficult to achieve simultaneously, and the requirements of ternary precursors in different types and production modes are difficult to meet simultaneously; (2) in order to realize large circulation flow, the stirring power of the stirring motor is higher, so that the volume of the stirring motor is larger, the structure at the top of the reaction kettle is crowded, and the further improvement of the stirring strength is limited.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model aims to provide a ternary precursor reaction kettle for a lithium ion battery, which can realize the increase of circulation flow and the mutual cooperation of axial flow, radial flow and shearing force on the premise of not increasing the stirring power of a stirring motor, so as to meet the requirements of ternary precursors of different types and production modes.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a lithium ion battery ternary precursor reation kettle, includes: a reaction kettle body; the first driving assembly comprises a stirring motor and a stirring piece, the stirring piece comprises a stirring paddle, a turbine and an anti-deposition inclined paddle which are coaxially distributed from top to bottom in sequence, a first blade of the stirring paddle, a fan blade of the turbine and a second blade of the anti-deposition inclined paddle are arranged at included angles with the horizontal plane, and the stirring motor can simultaneously drive the stirring paddle, the turbine and the anti-deposition inclined paddle to synchronously rotate so as to stir the slurry in the reaction kettle body; the second drive assembly comprises a dispersion motor arranged on the reaction kettle body and a dispersion disc connected with the output end of the dispersion motor, wherein the dispersion motor can drive the dispersion disc to rotate to disperse the slurry in the reaction kettle body.
As a preferred scheme of a ternary precursor reaction kettle of a lithium ion battery, the included angle between the first paddle and the horizontal plane is 45-75 degrees, the included angle between the fan blade and the horizontal plane is 65-80 degrees, and the included angle between the second paddle and the horizontal plane is 45-75 degrees.
As a preferred scheme of the ternary precursor reaction kettle of the lithium ion battery, the diameter of the first paddle is 1/6-1/3 of the inner diameter of the reaction kettle body, the width of the first paddle is 1/4-1/2 of the diameter of the first paddle, and the distance from the stirring paddle to the bottom of the reaction kettle body is 1/3-1/2 of the height of the reaction kettle body.
As a preferred scheme of the ternary precursor reaction kettle of the lithium ion battery, the diameter of the fan blade is 1/6-1/3 of the inner diameter of the reaction kettle body, the width of the fan blade is 1/4-1/2 of the diameter of the fan blade, and the distance from the turbine to the bottom of the reaction kettle body is 1/10-1/5 of the height of the reaction kettle body.
As a preferred scheme of the ternary precursor reaction kettle of the lithium ion battery, the diameter of the second paddle is 1/6-1/3 of the inner diameter of the reaction kettle body, the width of the second paddle is 1/4-1/2 of the diameter of the second paddle, and the distance from the anti-deposition inclined paddle to the bottom of the reaction kettle body is 1/15-1/10 of the height of the reaction kettle body.
As a preferred scheme of the ternary precursor reaction kettle of the lithium ion battery, the first driving assembly further comprises a stirring shaft and a speed reducer in transmission connection with the stirring motor, the output end of the speed reducer is in transmission connection with the stirring shaft, the stirring piece is arranged on the stirring shaft, and the distance from the stirring shaft to the bottom of the reaction kettle body is 1/20-1/15 of the height of the reaction kettle body.
As a preferred scheme of the lithium ion battery ternary precursor reaction kettle, the second driving assembly further comprises a dispersion shaft, one end of the dispersion shaft is connected with the output end of the stirring motor, the other end of the dispersion shaft is provided with the dispersion disc, and the distance from the dispersion shaft to the bottom of the reaction kettle body is 1/2-2/3 of the height of the reaction kettle body.
As a preferred scheme of the ternary precursor reaction kettle of the lithium ion battery, the dispersion plate is arranged in a horizontal plane, the diameter of the dispersion plate is 1/6-1/4 of the inner diameter of the reaction kettle body, the length of the saw teeth of the dispersion plate is 1/10-1/8 of the diameter of the dispersion plate, and the width of the saw teeth is 1/7-1/9 of the diameter of the dispersion plate.
As a preferred scheme of the ternary precursor reaction kettle of the lithium ion battery, an overflow port is arranged on the reaction kettle body, a sampling pipe communicated with the overflow port is arranged in the reaction kettle body, and the lower end of the sampling pipe is positioned at the lower part of the reaction kettle body.
As a preferred scheme of a ternary precursor reaction kettle of a lithium ion battery, the bottom surface and at least part of the side surface of the reaction kettle body are wrapped with a jacket, the jacket is positioned below the overflow port, the jacket and the reaction kettle body form a circulation cavity, the bottom of the jacket is provided with a liquid inlet communicated with the circulation cavity, and the upper part of the jacket is provided with a liquid outlet communicated with the circulation cavity.
The utility model has the beneficial effects that: the lithium ion battery ternary precursor reaction kettle disclosed by the utility model is additionally provided with the second driving assembly which has higher shearing force on the slurry, and the first paddle of the stirring paddle, the fan blade of the turbine and the second paddle of the anti-deposition inclined paddle form included angles with the horizontal plane, so that the axial flow, the radial flow and the shearing force of the slurry are matched, the circulation flow of the slurry is increased, and the circulation flow is larger for the stirring motors with the same volume, so that the lithium ion battery ternary precursor reaction kettle can simultaneously meet the requirements of ternary precursors of different types and production modes.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic diagram of a ternary precursor reaction kettle of a lithium ion battery according to an embodiment of the present invention.
In the figure:
1. a reaction kettle body; 101. a port is quickly plugged and unplugged; 102. an overflow port; 103. a feed inlet; 104. a discharge port; 105. transferring a material port; 11. a communicating pipe; 12. a sampling tube;
21. a stirring motor; 22. a stirring member; 221. a stirring paddle; 222. a turbine; 223. anti-settling raking paddles; 23. a stirring shaft; 24. a speed reducer;
31. a decentralized motor; 32. a dispersion tray; 33. a dispersion shaft;
40. a circulation chamber; 41. a jacket; 4101. a liquid inlet; 4102. and a liquid outlet.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides a lithium ion battery ternary precursor reaction kettle, as shown in fig. 1, which comprises a reaction kettle body 1, a first driving assembly and two second driving assemblies, wherein the first driving assembly comprises a stirring motor 21 and a stirring part 22, the stirring part 22 comprises a stirring paddle 221, a turbine 222 and an anti-deposition oblique paddle 223 which are coaxially distributed from top to bottom in sequence, a first paddle of the stirring paddle 221, a fan blade of the turbine 222 and a second paddle of the anti-deposition oblique paddle 223 are all arranged at an included angle with the horizontal plane, the stirring motor 21 can simultaneously drive the stirring paddle 221, the turbine 222 and the anti-deposition oblique paddle 223 to synchronously rotate so as to stir slurry in the reaction kettle body 1, the two second driving assemblies are respectively located at two opposite sides of the first driving assembly, each second driving assembly comprises a dispersion motor 31 arranged on the reaction kettle body 1 and a dispersion plate 32 connected with an output end of the dispersion motor 31, the dispersion motor 31 can drive the dispersion disc 32 to rotate to disperse the slurry in the reaction tank body 1.
Specifically, the included angle between the first paddle of the stirring paddle 221 and the horizontal plane is 45-75 degrees, the included angle between the fan blade of the turbine 222 and the horizontal plane is 65-80 degrees, the included angle between the second paddle of the anti-deposition inclined paddle 223 and the horizontal plane is 45-75 degrees, the arrangement enables the axial speed ratio and the radial speed ratio of the slurry to be more appropriate, the slurry can be matched with a shearing force, the morphology and the particle size distribution of a ternary precursor can be better controlled in a coprecipitation reaction, and therefore a stable vortex is formed, and particles are uniformly stressed.
As shown in fig. 1, the reaction kettle body 1 of the present embodiment is further provided with a feeding port 103 located at the upper portion thereof, a discharging port 104 located at the bottom thereof, and a material transferring port 105 located at the side thereof, a communicating pipe 11 communicated with the feeding port 103 is provided in the reaction kettle body 1, the lower end of the communicating pipe 11 is located at the lower portion of the reaction kettle body 1, slurry to be processed enters the bottom of the reaction kettle body 1 from the feeding port 103 through the communicating pipe 11, the finally prepared ternary precursor can be transferred to other reaction kettles from the material transferring port 105 for continuous processing, and the discharging port 104 is used for discharging all slurry in the reaction kettle body 1.
Because the contained angle setting is all personally submitted with the level to first paddle, flabellum and the second paddle of this embodiment, when stirring 22 rotates, the thick liquids can be followed axial and radial flow, and the contained angle is different, and the radial velocity of flow and the ratio of axial velocity of flow of thick liquids are also different, and stirring 22's rotational speed is different, and the radial velocity of flow and the axial velocity of flow of thick liquids are also different. When dispersion impeller 32 rotated, dispersion impeller 32 can disperse the thick liquids in reation kettle body 1, thereby increased the shearing force of dispersion impeller 32 to thick liquids, the shearing force of dispersion impeller 32 to thick liquids can be adjusted to the rotational speed through adjusting dispersion impeller 32, thereby make the dispersion impeller 32 increase along with the promotion of dispersion impeller 32 rotational speed to the shearing force of thick liquids, thereby make thick liquids form stable vortex in the synthetic reaction, thereby it has good sphericity to maintain the granule of ternary precursor, the distribution of control granularity simultaneously with prevent the reunion of granule effectively, promote the yields of ternary precursor.
The second drive assembly that the lithium ion battery ternary precursor reation kettle that this embodiment provided adds can make the dispersion impeller 32 have higher shearing force to the thick liquids, the first paddle of stirring rake 221, the flabellum of turbine 222 and prevent being the contained angle setting between the second paddle of deposiing oblique oar 223 and the horizontal plane, make the axial flow of thick liquids, radial flow and shearing force cooperation, the circulation flow of thick liquids has been increased, to the agitator motor 21 of the same volume, circulation flow is bigger, make this lithium ion battery ternary precursor reation kettle can satisfy the ternary precursor's of different grade type and production mode demand simultaneously.
Specifically, the dispersion motor 31 of this embodiment is a variable frequency motor, and the dispersion motor 31 can realize continuous adjustment of the rotation speed of the dispersion disc 32, so that the dispersion disc 32 can rotate at any rotation speed of 0-1500r/min, and the particle diameter of the ternary precursor is controllable, and the particle diameter is uniform, thereby improving the product quality of the ternary precursor. The stirring motor 21 can realize continuous adjustment of the rotating speed of the stirring piece 22, so that the stirring piece 22 rotates at any rotating speed of 50-500r/min, and axial flow, radial flow and shearing force of slurry are matched with each other. In other embodiments, the number of the second driving assemblies is not limited to two in this embodiment, and may also be one or more than three, specifically according to actual needs.
The diameter of the first paddle in this embodiment is 1/6-1/3 of the inner diameter of the reaction kettle body 1, the width of the first paddle is 1/4-1/2 of the diameter of the first paddle, and the distance from the stirring paddle 221 to the bottom of the reaction kettle body 1 is 1/3-1/2 of the height of the reaction kettle body 1. The diameter of the fan blade is 1/6-1/3 of the inner diameter of the reaction kettle body 1, the width of the fan blade is 1/4-1/2 of the diameter of the fan blade, and the distance from the turbine 222 to the bottom of the reaction kettle body 1 is 1/10-1/5 of the height of the reaction kettle body 1. The diameter of the second paddle is 1/6-1/3 of the inner diameter of the reaction kettle body 1, the width of the second paddle is 1/4-1/2 of the diameter of the second paddle, and the distance from the anti-deposition inclined paddle 223 to the bottom of the reaction kettle body 1 is 1/15-1/10 of the height of the reaction kettle body 1.
As shown in fig. 1, the first driving assembly of this embodiment further includes a stirring shaft 23 and a speed reducer 24 in transmission connection with the stirring motor 21, an output end of the speed reducer 24 is in transmission connection with the stirring shaft 23, the stirring member 22 is disposed on the stirring shaft 23, and a distance from the stirring shaft 23 to the bottom of the reaction kettle body 1 is 1/20-1/15 of the height of the reaction kettle body 1.
The stirring paddle 221 of this embodiment is a one-layer structure, the number of the first paddles is two, and the two first paddles are symmetrically arranged on two sides of the stirring shaft 23. In other embodiments, the paddles 221 may be arranged in two or more layers, depending on the ternary precursor to be processed.
As shown in fig. 1, the second driving assembly of this embodiment further includes a dispersion shaft 33, one end of the dispersion shaft 33 is connected to the output end of the stirring motor 21, the other end of the dispersion shaft 33 is provided with a dispersion disc 32, and the distance from the dispersion shaft 33 to the bottom of the reaction vessel body 1 is 1/2-2/3 of the height of the reaction vessel body 1. Specifically, the two dispersion shafts 33 of the two second driving assemblies of the present embodiment are located at the symmetrical positions of the stirring shaft 23, and this arrangement enables the dispersion plate 32 to better disperse the slurry, so that the shearing force of the dispersion plate 32 to the slurry is more uniform.
The dispersion board 32 of the present embodiment is disposed in a horizontal plane, the diameter of the dispersion board 32 is 1/6-1/4 of the inner diameter of the reaction vessel body 1, the length of the saw teeth of the dispersion board 32 is 1/10-1/8 of the diameter of the dispersion board 32, and the width of the saw teeth is 1/7-1/9 of the diameter of the dispersion board 32. The serrations of the dispersion board 32 of the present embodiment include upper serrations and lower serrations, that is, the dispersion board 32 is a double-sided tooth dispersion board, and such a dispersion board 32 can accelerate the dispersion of the slurry, thereby increasing the shearing force of the dispersion board 32 to the slurry.
As shown in fig. 1, the top of the reaction kettle body 1 of the embodiment is provided with a quick plugging port 101, and the pH detection piece can detect the pH value of the slurry through the quick plugging port 101, so as to realize the real-time monitoring of the pH of the slurry and further monitor the reaction process of the slurry in real time.
As shown in fig. 1, the reaction kettle body 1 of the present embodiment is provided with two overflow ports 102 distributed along the height direction of the reaction kettle body 1, and the two overflow ports 102 are both located above the quick plugging port 101. Wherein, the overflow ports 102 at the lower part are positioned at the position of 0.6-0.8 of the height of the reaction kettle body 1, and the distance between the two overflow ports 102 is 0.1-0.2 of the height of the reaction kettle body 1. When the liquid level of the thick liquids in the reation kettle body 1 reached the overflow mouth 102 position of below, the thick liquids can flow from the overflow mouth 102 of below, if the liquid level of the thick liquids in the reation kettle continuously rises to the overflow mouth 102 position of top, and the thick liquids outwards flow through two overflow mouths 102 this moment, have accelerated the velocity of flow of thick liquids for the liquid level of the thick liquids of reation kettle body 1 descends fast.
Further, the overflow port 102 of the lower part of this embodiment is connected with the sampling tube 12, the sampling tube 12 is arranged along the length direction of the reaction kettle body 1, the lower end of the sampling tube 12 is located at the lower part of the reaction kettle, and different slurries taken out from the reaction kettle bodies 1 with different heights can be changed by changing the length of the sampling tube 12.
In order to meet the requirements of slurry in the reaction kettle body 1 for different temperatures, as shown in fig. 1, the bottom surface and at least part of the side surface of the reaction kettle body 1 of the present embodiment are wrapped with a jacket 41, the jacket 41 is located below the quick plugging port 101 and the overflow port 102, the jacket 41 and the reaction kettle body 1 form a circulation cavity 40, the bottom of the jacket 41 is provided with a liquid inlet 4101 communicated with the circulation cavity 40, and the upper part of the jacket 41 is provided with a liquid outlet 4102 communicated with the circulation cavity 40. The circulation liquid is introduced into the circulation cavity 40 through the liquid inlet 4101, so that the circulation liquid heats or cools the slurry in the reaction kettle body 1, the slurry reacts at a proper temperature, the reaction of the slurry is accelerated, and the production speed of the ternary precursor is increased.
The lithium ion battery ternary precursor reation kettle that this embodiment provided simple structure, stable performance, the diameter controllable of granule can be realized to the rotational speed through control dispersion impeller 32, thereby make the little ternary precursor of particle diameter phase difference, the first drive assembly who sets up can realize the stirring to the thick liquids, two second drive assemblies can realize the promotion of dispersion impeller 32 to the shearing force of thick liquids, make stirring function and shearing function independently realize, lithium ion battery ternary precursor reation kettle's controllability has been improved, in coprecipitation reaction, the appearance and the particle size distribution of control ternary precursor that can be better, thereby form stable vortex, make the granule atress even. The diameter of the particles of the ternary precursor can be controlled through the rotating speed of the dispersing wheel, so that the particles of the ternary precursor have a larger particle size range, the product requirement is more easily met, and the yield and the production efficiency are improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A lithium ion battery ternary precursor reation kettle, its characterized in that includes:
a reaction kettle body (1);
the first driving assembly comprises a stirring motor (21) and a stirring part (22), the stirring part (22) comprises a stirring paddle (221), a turbine (222) and an anti-deposition inclined paddle (223), the stirring paddle (221), the turbine (222) and the anti-deposition inclined paddle (223) are coaxially distributed from top to bottom, included angles are formed between a first blade of the stirring paddle (221), a fan blade of the turbine (222) and a second blade of the anti-deposition inclined paddle (223), and the stirring motor (21) can simultaneously drive the stirring paddle (221), the turbine (222) and the anti-deposition inclined paddle (223) to synchronously rotate so as to stir the slurry in the reaction kettle body (1);
the second drive assembly comprises a dispersion motor (31) arranged on the reaction kettle body (1) and a dispersion disc (32) connected with the output end of the dispersion motor (31), wherein the dispersion motor (31) can drive the dispersion disc (32) to rotate so as to disperse the slurry in the reaction kettle body (1).
2. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein the included angle between the first paddle and the horizontal plane is 45-75 degrees, the included angle between the fan blade and the horizontal plane is 65-80 degrees, and the included angle between the second paddle and the horizontal plane is 45-75 degrees.
3. The lithium ion battery ternary precursor reactor according to claim 1, wherein the diameter of the first paddle is 1/6-1/3 of the inner diameter of the reactor body (1), the width of the first paddle is 1/4-1/2 of the diameter of the first paddle, and the distance from the stirring paddle (221) to the bottom of the reactor body (1) is 1/3-1/2 of the height of the reactor body (1).
4. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein the diameter of the fan blade is 1/6-1/3 of the inner diameter of the reaction kettle body (1), the width of the fan blade is 1/4-1/2 of the diameter of the fan blade, and the distance from the turbine (222) to the bottom of the reaction kettle body (1) is 1/10-1/5 of the height of the reaction kettle body (1).
5. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein the diameter of the second paddle is 1/6-1/3 of the inner diameter of the reaction kettle body (1), the width of the second paddle is 1/4-1/2 of the diameter of the second paddle, and the distance from the anti-deposition inclined paddle (223) to the bottom of the reaction kettle body (1) is 1/15-1/10 of the height of the reaction kettle body (1).
6. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein the first driving assembly further comprises a stirring shaft (23) and a speed reducer (24) in transmission connection with the stirring motor (21), an output end of the speed reducer (24) is in transmission connection with the stirring shaft (23), the stirring member (22) is arranged on the stirring shaft (23), and the distance from the stirring shaft (23) to the bottom of the reaction kettle body (1) is 1/20-1/15 of the height of the reaction kettle body (1).
7. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein the second driving assembly further comprises a dispersion shaft (33), one end of the dispersion shaft (33) is connected with the output end of the stirring motor (21), the other end of the dispersion shaft is provided with the dispersion disc (32), and the distance from the dispersion shaft (33) to the bottom of the reaction kettle body (1) is 1/2-2/3 of the height of the reaction kettle body (1).
8. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein the dispersion plate (32) is arranged in a horizontal plane, the diameter of the dispersion plate (32) is 1/6-1/4 of the inner diameter of the reaction kettle body (1), the length of the saw teeth of the dispersion plate (32) is 1/10-1/8 of the diameter of the dispersion plate (32), and the width of the saw teeth is 1/7-1/9 of the diameter of the dispersion plate (32).
9. The lithium ion battery ternary precursor reaction kettle according to claim 1, wherein an overflow port (102) is arranged on the reaction kettle body (1), a sampling pipe (12) communicated with the overflow port (102) is arranged in the reaction kettle body (1), and the lower end of the sampling pipe (12) is positioned at the lower part of the reaction kettle body (1).
10. The lithium ion battery ternary precursor reaction kettle according to claim 9, wherein a jacket (41) is wrapped on the bottom surface and at least part of the side surface of the reaction kettle body (1), the jacket (41) is positioned below the overflow port (102), the jacket (41) and the reaction kettle body (1) form a circulation cavity (40), a liquid inlet (4101) communicated with the circulation cavity (40) is arranged at the bottom of the jacket (41), and a liquid outlet (4102) communicated with the circulation cavity (40) is arranged at the upper part of the jacket (41).
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| CN202122060685.7U CN215655155U (en) | 2021-08-30 | 2021-08-30 | Ternary precursor reaction kettle for lithium ion battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149033A (en) * | 2022-02-09 | 2022-03-08 | 浙江长城搅拌设备股份有限公司 | Ternary precursor of lithium ion battery, preparation method and preparation device thereof |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149033A (en) * | 2022-02-09 | 2022-03-08 | 浙江长城搅拌设备股份有限公司 | Ternary precursor of lithium ion battery, preparation method and preparation device thereof |
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