Stirring device

Abstract

A stirring device, comprising: a stirring tank (10) for accommodating a slurry; a stirring assembly, comprising a dispersing disc (21) arranged in the stirring tank (10), wherein the dispersing disc (21) is configured to controllably rotate around its own axis (a1) and revolve around a revolution axis (a2), and the axis (a1) of the dispersing disc (21) is parallel to and not collinear with the revolution axis (a2); and a plurality of baffle strips (30), protruded from the circumferential inner wall of the stirring tank (10) and arranged at intervals in the circumferential direction of the stirring tank (10), wherein the circumferential direction of the stirring tank (10) is the direction around the revolution axis (a2).

Description

A stirring device

[0001] This disclosure claims priority to Chinese Patent Application No. 202420951819.5, filed on May 6, 2024, entitled “A Stirring Apparatus”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of battery manufacturing equipment technology, and in particular to a stirring device. Background Technology

[0003] Slurry mixing is the first step in lithium battery manufacturing production lines. It refers to the process of uniformly mixing lithium battery active materials, conductive agents, binders, other additives, and solvents. The quality of slurry mixing directly determines the performance of lithium batteries. Therefore, slurry mixing equipment is one of the most critical pieces of equipment in lithium battery manufacturing.

[0004] In existing technologies, homogenizing equipment achieves homogenization of multiple slurries by having a mixing tank drive a mixing paddle to revolve around its own axis and the mixing paddle to rotate on its own axis. Referring to Figure 1, the mixing paddle can rotate clockwise around its own axis, and the mixing tank can rotate counterclockwise around its own axis, thus causing the mixing tank to drive the mixing paddle to revolve around its own axis. The mixing paddle drives the slurry to rotate clockwise, and the mixing tank drives the slurry to rotate counterclockwise; these opposite directions of rotation cause the slurry to become violently turbulent, accelerating the dispersion efficiency of the slurry.

[0005] However, the rotation of the mixing tank can cause relative sliding between the mixing tank and the lid. On the one hand, this can lead to poor sealing of the mixing tank and the risk of slurry leakage when rotating at high speed. On the other hand, it can not maintain a high vacuum inside the mixing tank, which is not conducive to subsequent vacuum defoaming. Furthermore, the relative sliding between the mixing tank and the lid can cause friction to generate foreign matter, which can contaminate the slurry. Summary of the Invention

[0006] Therefore, it is necessary to provide a mixing device that improves upon the above-mentioned defects, in the existing technology, the rotation of the mixing tank causes relative sliding between the mixing tank and the lid. On the one hand, this leads to poor sealing of the mixing tank, and there is a risk of slurry leakage when rotating at high speed. On the other hand, the mixing tank cannot maintain a high vacuum, which is not conducive to subsequent vacuum defoaming. Furthermore, the relative sliding between the mixing tank and the lid can cause friction to generate foreign matter and contaminate the slurry.

[0007] A stirring device, comprising:

[0008] A mixing tank, used to hold slurry;

[0009] A stirring assembly includes a dispersion disc disposed within the stirring tank, the dispersion disc being controllably rotatable about its own axis and revolving around a common axis; the axis of the dispersion disc is parallel to and not collinear with the common axis; and

[0010] Multiple baffles are protruding from the inner wall of the mixing tank and are spaced apart along the circumference of the mixing tank, which is the direction around the revolution axis.

[0011] In one embodiment, the revolution axis is collinear with the axis of the mixing tank itself.

[0012] In one embodiment, each of the turbulence strips extends longitudinally from one end of the mixing tank in a predetermined direction to the other end of the mixing tank in the predetermined direction, the predetermined direction being parallel to the revolution axis.

[0013] In one embodiment, the longitudinal extension direction of each of the baffles is parallel to or at an angle to the axis of the mixing tank.

[0014] In one embodiment, the various turbulence strips are arranged at equal intervals along the circumference of the mixing tank.

[0015] In one embodiment, the equivalent diameter R of each of the spoilers is the diameter of a dummy circle with the same area as the cross-sectional area of ​​the spoiler.

[0016] The arc spacing A between any two adjacent turbulence strips along the inner circumference of the mixing tank is greater than or equal to 2 × R.

[0017] In one embodiment, the stirring assembly further includes a driving mechanism, the driving end of which extends into the stirring tank and is connected to the dispersing disc; the driving mechanism is used to drive the dispersing disc to rotate around its own axis and revolve around the revolution axis.

[0018] In one embodiment, the drive mechanism includes a first drive shaft, a second drive shaft, a mounting plate, and a rotating shaft;

[0019] One end of the first drive shaft is inserted into the mixing tank and can be rotated in a controlled manner relative to the mixing tank around its own axis, the axis of the first drive shaft being the revolution axis; the mounting plate is fixedly connected to one end of the first drive shaft located inside the mixing tank, the rotating shaft is rotatably connected to the mounting plate around its own axis, the dispersing plate is mounted on the rotating shaft, and the axis of the rotating shaft is parallel to and not collinear with the axis of the first drive shaft;

[0020] The second drive shaft is coaxially sleeved inside the first drive shaft and can be rotated relative to the first drive shaft in a controlled manner; one end of the second drive shaft located inside the mixing tank is connected to the rotating shaft for transmission, so that the second drive shaft can drive the rotating shaft to rotate around its own axis.

[0021] In one embodiment, the driving mechanism further includes a revolution driving component and a rotation driving component. The revolution driving component is connected to the end of the first drive shaft located outside the mixing tank to drive the first drive shaft to rotate around its own axis. The rotation driving component is connected to the end of the second drive shaft located outside the mixing tank to drive the second drive shaft to rotate around its own axis.

[0022] In one embodiment, the stirring device further includes a lid, the stirring tank having an opening communicating with the inner cavity of the stirring tank, the lid sealingly covering the opening of the stirring tank, and the lid having a mounting hole for installing the first drive shaft.

[0023] In actual use, the aforementioned mixing device involves the dispersing disc rotating around its own axis, thereby agitating the slurry within the mixing tank. This causes intense splashing and collision of particles within the slurry, leading to the dispersal of agglomerated particles. Simultaneously, the dispersing disc also revolves around its central axis, creating intense chaos within the slurry and further intensifying the dispersal of agglomerated particles. During the rotation and revolution of the dispersing disc, the turbulence of the slurry is significantly disrupted by the turbulence generated by the various turbulence strips. In other words, the turbulence and chaos of the slurry are further enhanced by the rotation and revolution of the dispersing disc, ensuring that the slurry can be mixed relatively quickly and thoroughly.

[0024] Compared with the prior art, this application utilizes the rotation and revolution of the various turbulence strips on the inner wall of the mixing tank and the dispersion disc to ensure a better uniform mixing effect of the slurry, avoiding the need to drive the mixing tank to rotate. On the one hand, this helps to improve the sealing effect of the mixing tank and reduce the risk of slurry leakage; on the other hand, it allows the mixing tank to maintain a high vacuum, which is beneficial for subsequent vacuum defoaming; and it also avoids the friction between the mixing tank and the lid, which would generate foreign matter and thus prevent slurry contamination. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the structure of the mixing tank and mixing blade of the mixing device in the prior art;

[0026] Figure 2 is a schematic diagram of the structure of the stirring device in one embodiment of the present disclosure;

[0027] Figure 3 is a schematic diagram of the mixing tank and dispersion disc of the mixing device shown in Figure 2;

[0028] Figure 4 is a schematic diagram of the mixing tank of the mixing device shown in Figure 2. Detailed Implementation

[0029] To make the above-described objects, features, and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure. However, this disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this disclosure. Therefore, this disclosure is not limited to the specific embodiments disclosed below.

[0030] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

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

[0032] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0033] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Referring to Figures 2 to 4, one embodiment of this disclosure provides a mixing device for uniformly mixing a slurry. The mixing device includes a mixing tank 10, a mixing assembly (not shown), and multiple baffles 30. The mixing tank 10 is used to contain the slurry. The mixing assembly includes a dispersing disk 21 disposed within the mixing tank 10. The dispersing disk 21 can be controlled to rotate about its own axis a1 and revolve around a revolution axis a2. Multiple baffles 30 are protruding from the inner circumferential wall of the mixing tank 10 and are spaced apart along the circumference of the mixing tank 10. The circumferential direction of the mixing tank 10 is the direction around the revolution axis a2.

[0036] In actual use, the aforementioned stirring device involves the dispersion disc 21 rotating around its own axis a1, thereby stirring the slurry within the mixing tank 10. This causes intense splashing and collision of particles within the slurry, leading to the dispersal of agglomerated particles. Simultaneously, the dispersion disc 21 also revolves around its revolution axis a2, creating intense chaos within the mixing tank 10 and further intensifying the dispersal of agglomerated particles. During the rotation and revolution of the dispersion disc 21, the turbulence of the slurry is significantly disrupted by the turbulence of the various turbulence strips 30. In other words, the turbulence of the turbulence of the slurry is further enhanced by the rotation and revolution of the dispersion disc 21, ensuring that the slurry can be mixed relatively quickly and thoroughly.

[0037] Compared with the prior art, this application utilizes the rotation and revolution of the various turbulence strips 30 on the inner wall of the mixing tank 10 with the dispersion disk 21 to ensure a better uniform mixing effect of the slurry, avoiding the need to drive the mixing tank 10 to rotate. On the one hand, this helps to improve the sealing effect of the mixing tank 10 and reduce the risk of slurry leakage; on the other hand, it allows the mixing tank 10 to maintain a high vacuum, which is beneficial for subsequent vacuum defoaming; and on the other hand, it avoids the friction between the mixing tank 10 and the lid 40, which would generate foreign matter and thus prevent slurry contamination.

[0038] Specifically, in this embodiment, the aforementioned revolution axis a2 is collinear with the axis of the mixing tank 10, thereby causing the dispersion disk 21 to revolve around the axis of the mixing tank 10. Furthermore, the various turbulence-inducing strips 30 are spaced apart on the inner wall of the mixing tank 10 around its own axis, significantly improving the turbulence effect of each strip 30 and further enhancing the efficiency of uniform mixing of the slurry. It should be noted that the collinearity of the revolution axis a2 with the axis of the mixing tank 10 should be understood as approximately collinear, allowing for a certain degree of error.

[0039] In a specific embodiment, each baffle strip 30 extends longitudinally from one end of the mixing tank 10 in a predetermined direction to the other end in the same predetermined direction, which is parallel to the revolution axis a2. Specifically, the revolution axis a2 is parallel to the vertical direction, i.e., the predetermined direction is the vertical direction. Each baffle strip 30 extends longitudinally from the bottom of the mixing tank 10 to the top of the mixing tank 10, maximizing the length of the baffle strip 30 to ensure a smooth flow.

[0040] Optionally, the longitudinal extension direction of each baffle 30 is parallel to the axial direction of the mixing tank 10. Specifically, the axial direction of the mixing tank 10 is the vertical direction, and each baffle 30 extends longitudinally in the vertical direction. Of course, in other embodiments, the longitudinal extension direction of each baffle 30 may also be at an angle to the axial direction of the mixing tank 10, that is, each baffle 30 is arranged at an angle relative to the axial direction of the mixing tank 10, and the angle of inclination of the baffle 30 is not limited here.

[0041] Optionally, each turbulence strip 30 is arranged at equal intervals along the circumference of the mixing tank 10, thereby ensuring that the turbulence effect in each area of ​​the mixing tank 10 is relatively consistent, which is beneficial to improving the uniform mixing effect of the slurry.

[0042] Optionally, the cross-sectional shapes of different positions of the same spoiler 30 are identical and have equal areas. The cross-sectional shape of the spoiler 30 can be circular, elliptical, rectangular, trapezoidal, or triangular, etc. Of course, the cross-sectional shape of the spoiler 30 can also be irregular, and this is not limited here. The cross-sectional shapes of the various spoilers 30 can be the same or different, and this is not limited here.

[0043] Preferably, the equivalent diameter R of each baffle 30 refers to the diameter of a hypothetical circle with the same cross-sectional area as the baffle 30. The arc distance A between any two adjacent baffles 30 along the inner circumference of the mixing tank 10 is greater than or equal to 2 × R. In this way, each baffle 30 provides a better turbulence effect on the slurry within the mixing tank 10, which is beneficial for improving the efficiency of uniform mixing of the slurry. For example, the equivalent diameter R of each baffle 30 is 32 mm, and the arc distance A between any two adjacent baffles 30 along the inner circumference of the mixing tank 10 is 5 × R = 160 mm.

[0044] In a specific embodiment, the mixing tank 10 has an opening 14 communicating with the inner cavity of the mixing tank 10. The mixing device also includes a tank cover 40, which is sealed to the opening 14 of the mixing tank 10, so that the mixing tank 10 and the tank cover 40 together form a sealed space for containing slurry.

[0045] In a specific embodiment, the mixing tank 10 includes an inner tank and an outer tank sleeved around the outer side of the inner tank, forming a cooling jacket 13 between the inner and outer tanks. The outer tank has an inlet 11 and an outlet 12, both communicating with the cooling jacket 13. The inlet 11 is used to introduce coolant into the cooling jacket 13, which cools the slurry in the inner tank, thereby preventing the slurry temperature from becoming too high due to heat generated during mixing. The coolant in the cooling jacket 13 is discharged through the outlet 12, thus carrying away heat.

[0046] In the embodiments of this application, the bucket lid 40 is provided with a mounting hole 41, and the stirring assembly also includes a driving mechanism 22. The driving end of the driving mechanism 22 passes through the mounting hole 41 on the bucket lid 40 into the stirring bucket 10 and is connected to the dispersing disc 21. The driving mechanism 22 can drive the dispersing disc 21 to rotate around its own axis a1 and revolve around the revolution axis a2.

[0047] Specifically, in this embodiment, the drive mechanism 22 includes a first drive shaft 220, a second drive shaft 221, a mounting plate 222, and a rotating shaft 223. The first drive shaft 220 passes through a mounting hole 41 on the lid 40, such that one end of the first drive shaft 220 is located inside the mixing tank 10, and the other end is located outside the mixing tank 10. The first drive shaft 220 can be controlled to rotate relative to the mixing tank 10 about its own axis. The mounting plate 222 is fixedly connected to the end of the first drive shaft 220 located inside the mixing tank 10, so that the mounting plate 222 can rotate with the first drive shaft 220. The rotating shaft 223 is rotatably connected to the mounting plate 222 about its own axis, and the dispersing plate 21 is mounted on the rotating shaft 223. The axis of the rotating shaft 223 is parallel to and not collinear with the axis of the first drive shaft 220. The second drive shaft 221 is coaxially sleeved inside the first drive shaft 220, such that one end of the second drive shaft 221 is located inside the mixing tank 10, and the other end is located outside the mixing tank 10. The second drive shaft 221 can be controlled to rotate relative to the first drive shaft 220. The end of the second drive shaft 221 located inside the mixing tank 10 is connected to the rotating shaft 223 for transmission, so that the second drive shaft 221 can drive the rotating shaft 223 to rotate around its own axis.

[0048] Thus, when the first drive shaft 220 is controlled to rotate around its own axis, the first drive shaft 220 can drive the mounting disk 222, the rotating shaft 223, and the dispersing disk 21 to rotate around the first drive shaft 220's own axis. Since the first drive shaft 220's own axis is the aforementioned revolution axis a2, the first drive shaft 220 can drive the dispersing disk 21 to revolve around the revolution axis a2.

[0049] When the second drive shaft 221 is controlled to rotate around its own axis, the second drive shaft 221 can drive the rotating shaft 223 to rotate relative to the mounting disk 222 around its own axis, thereby driving the dispersing disk 21 on the rotating shaft 223 to rotate around its own axis a1.

[0050] Optionally, the first drive shaft 220 can be mounted on the lid 40 via bearings, allowing the first drive shaft 220 to rotate relative to the lid 40 about its own axis. The second drive shaft 221 passes through the first drive shaft 220 and is coaxial with it. The second drive shaft 221 and the first drive shaft 220 can also be connected by bearings, allowing the second drive shaft 221 to rotate relative to the first drive shaft 220 about its own axis. That is, both the first drive shaft 220 and the second drive shaft 221 can rotate relative to the lid 40 about their own axes without interfering with each other. The rotating shaft 223 can also be mounted on the mounting plate 222 via bearings, allowing the rotating shaft 223 to rotate relative to the mounting plate 222 about its own axis.

[0051] Furthermore, the drive mechanism 22 also includes a first transmission structure 224, which is disposed between one end of the second drive shaft 221 located inside the mixing tank 10 and the rotating shaft 223, so as to transmit the rotational motion of the second drive shaft 221 to the rotating shaft 223, so that when the second drive shaft 221 rotates around its own axis, it can drive the rotating shaft 223 to rotate around its own axis, thereby driving the dispersing disk 21 on the rotating shaft 223 to rotate around its own axis a1.

[0052] Optionally, the first transmission structure 224 includes a driving gear and a driven gear. The driving gear is mounted on one end of the second driving shaft 221 located inside the mixing tank 10, so that the second driving shaft 221 and the driving gear rotate synchronously. The driven gear is mounted on the rotating shaft 223, so that the driven gear rotates synchronously with the rotating shaft 223. The driving gear and the driven gear mesh with each other, so that when the driving gear rotates with the second driving shaft 221, it can drive the driven gear to rotate, and then the driven gear drives the rotating shaft 223 and the dispersing disk 21 on the rotating shaft 223 to rotate. It should be noted that the first transmission structure 224 is not limited to a gear transmission structure. In other embodiments, a belt transmission structure or a chain transmission structure may also be used, which is not limited here.

[0053] In a specific embodiment, the drive mechanism 22 further includes a revolution drive component 225 and a rotation drive component 227. The revolution drive component 225 is driven to the end of the first drive shaft 220 located outside the mixing tank 10, so that the revolution drive component 225 can drive the first drive shaft 220 to rotate around its own axis, thereby causing the dispersion disk 21 to revolve around the revolution axis a2. The rotation drive component 227 is driven to the end of the second drive shaft 221 located outside the mixing tank 10, so as to drive the second drive shaft 221 to rotate around its own axis, thereby causing the dispersion disk 21 to rotate around its own axis a1.

[0054] Furthermore, the drive mechanism 22 also includes a second transmission structure 226, which is disposed between the output shaft of the revolution drive member 225 and the first drive shaft 220. This second transmission structure 226 transmits the rotational motion output by the revolution drive member 225 to the first drive shaft 220, enabling the revolution drive member 225 to drive the first drive shaft 220 to rotate around its own axis. Optionally, the revolution drive member 225 can be a motor.

[0055] Optionally, the second transmission structure 226 adopts a chain drive structure. Of course, in other embodiments, the second transmission structure 226 may also adopt a gear drive structure or a belt drive structure, which is not limited here.

[0056] Furthermore, the drive mechanism 22 also includes a third transmission structure 228, which is disposed between the output shaft of the self-rotating drive member 227 and the second drive shaft 221. This third transmission structure 228 transmits the rotational motion output by the self-rotating drive member 227 to the second drive shaft 221, enabling the self-rotating drive member 227 to drive the second drive shaft 221 to rotate. Optionally, the self-rotating drive member 227 can be a motor.

[0057] Optionally, the third transmission structure 228 adopts a chain drive structure. Of course, in other embodiments, the third transmission structure 228 may also adopt a gear drive structure or a belt drive structure, which is not limited here.

[0058] To illustrate the beneficial effects of the stirring device in this application, Example 1 and the comparative example are compared below. Example 1 uses the stirring device shown in Figures 2 and 3 for pulping, while the comparative example uses the prior art stirring device shown in Figure 1. The diameter of the dispersion disc 21 in both the stirring device used in Example 1 and the stirring device used in the comparative example is 200 mm, and the volume of the stirring tank 10 is 50 L. The slurries in Example 1 and the comparative example use the same negative electrode material formulation, and the negative electrode material formulation parameters are shown in Table 1. Under the premise that the quality of the slurry obtained in Example 1 is consistent with that obtained in the comparative example, the pulping time and energy consumption of the stirring devices in Example 1 and the comparative example are collected respectively. It should be noted that the quality of the slurry is characterized by viscosity, particle size, rheology, etc.

[0059] Table 1 Formulation parameters of negative electrode materials

[0060] Comparative Results: Under the premise of obtaining the same quality slurry, the slurry preparation time of the mixing device in Example 1 was 115 minutes, while the slurry preparation time of the mixing device in the comparative example was 130 minutes. It is evident that the slurry preparation time of the mixing device in Example 1 (i.e., the mixing device in this application) is shorter than that of the mixing device in the comparative example (i.e., the mixing device in the prior art). In other words, the mixing device of this application has a higher efficiency in uniformly mixing the slurry.

[0061] Under the premise of obtaining the same quality slurry, the electrical energy consumed by the stirring device in Example 1 is 37.0 kWh, while the electrical energy consumed by the stirring device in the comparative example is 43.6 kWh. It can be seen that the electrical energy consumption of the stirring device in Example 1 (i.e., the stirring device in this application) is only 85% of that of the stirring device in the comparative example (i.e., the stirring device in the prior art).

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A stirring device, characterized in that, include: A mixing tank, used to hold slurry; A stirring assembly includes a dispersion disc disposed within the stirring tank, the dispersion disc being controllably rotatable about its own axis and revolving around a common axis; the axis of the dispersion disc is parallel to and not collinear with the common axis; and Multiple baffles are protruding from the inner wall of the mixing tank and are spaced apart along the circumference of the mixing tank, which is the direction around the revolution axis.

2. The stirring device according to claim 1, characterized in that, The orbital axis is collinear with the axis of the mixing tank itself.

3. The stirring device according to claim 1 or 2, characterized in that, Each of the aforementioned turbulence strips extends longitudinally from one end of the mixing tank in a predetermined direction to the other end of the mixing tank in the same predetermined direction, the predetermined direction being parallel to the revolution axis.

4. The stirring device according to claim 3, characterized in that, The longitudinal extension direction of each of the aforementioned turbulence strips is parallel to or at an angle to the axial direction of the mixing tank.

5. The stirring apparatus according to any one of claims 1 to 4, characterized in that, Each of the aforementioned turbulence-disrupting strips is arranged at equal intervals along the circumference of the mixing tank.

6. The stirring apparatus according to any one of claims 1 to 5, characterized in that, The equivalent diameter R of each of the aforementioned spoilers is the diameter of a virtual circle with the same area as the cross-sectional area of ​​the spoiler. The arc spacing A between any two adjacent turbulence strips along the inner circumference of the mixing tank is greater than or equal to 2 × R.

7. The stirring apparatus according to any one of claims 1 to 6, characterized in that, The stirring assembly also includes a driving mechanism, the driving end of which extends into the stirring tank and is connected to the dispersing disc; the driving mechanism is used to drive the dispersing disc to rotate around its own axis and revolve around the revolution axis.

8. The stirring device according to claim 7, characterized in that, The drive mechanism includes a first drive shaft, a second drive shaft, a mounting plate, and a rotating shaft; One end of the first drive shaft is inserted into the mixing tank and can be rotated in a controlled manner relative to the mixing tank around its own axis, the axis of the first drive shaft being the revolution axis; the mounting plate is fixedly connected to one end of the first drive shaft located inside the mixing tank, the rotating shaft is rotatably connected to the mounting plate around its own axis, the dispersing plate is mounted on the rotating shaft, and the axis of the rotating shaft is parallel to and not collinear with the axis of the first drive shaft; The second drive shaft is coaxially sleeved inside the first drive shaft and can be rotated relative to the first drive shaft in a controlled manner; one end of the second drive shaft located inside the mixing tank is connected to the rotating shaft for transmission, so that the second drive shaft can drive the rotating shaft to rotate around its own axis.

9. The stirring device according to claim 8, characterized in that, The driving mechanism further includes a revolution driving component and a rotation driving component. The revolution driving component is connected to the end of the first drive shaft located outside the mixing tank to drive the first drive shaft to rotate around its own axis. The rotation driving component is connected to the end of the second drive shaft located outside the mixing tank to drive the second drive shaft to rotate around its own axis.

10. The stirring device according to claim 8, characterized in that, The stirring device further includes a bucket lid, the stirring bucket has an opening communicating with the inner cavity of the stirring bucket, the bucket lid is sealed to the opening of the stirring bucket, and the bucket lid has a mounting hole for installing the first drive shaft.

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