Stirring device

Abstract

The utility model relates to a stirring device. The stirring device comprises: a stirring barrel for accommodating slurry; the stirring assembly comprises a dispersion disc arranged in the stirring barrel, and the dispersion disc can controllably rotate around the axis of the dispersion disc and revolve around a revolution axis; the self axis of the dispersion disc and the revolution axis are parallel and are not collinear; and the multiple turbulent flow strips are all arranged on the inner wall of the circumferential side of the stirring barrel in a protruding mode and distributed in the circumferential direction of the stirring barrel at intervals, and the circumferential direction of the stirring barrel is the direction around the revolution axis. Compared with the prior art, the stirring device avoids the need of driving the stirring barrel to rotate, on one hand, the sealing effect of the stirring barrel is improved, and the risk of slurry leakage is reduced; on the other hand, a relatively high vacuum degree can be kept in the stirring barrel, so that subsequent vacuum defoaming is facilitated; on the other hand, foreign matters generated by friction caused by relative sliding of the stirring barrel and the barrel cover are avoided, and slurry pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a stirring device. Background Art

[0002] Homogenization is the first process in the lithium battery manufacturing production line. It refers to the process of evenly mixing lithium battery active material, conductive agent, adhesive, other additives and solvent. The quality of homogenization directly determines the performance of lithium battery. Therefore, homogenization equipment is one of the most critical equipment in lithium battery manufacturing equipment.

[0003] In the prior art, the homogenizing equipment realizes the homogenization of multiple slurries by driving the stirring paddle to revolve and rotate by itself through the stirring barrel. Figure 1 The stirring paddle can rotate clockwise around its own axis, and the stirring barrel can rotate counterclockwise around its own axis, so that the stirring barrel drives the stirring paddle to revolve around the axis of the stirring barrel. The stirring paddle drives the slurry to rotate clockwise, and the stirring barrel drives the slurry to rotate counterclockwise. The opposite rotation direction will cause the slurry to be violently chaotic, accelerating the dispersion efficiency of the slurry.

[0004] However, the rotation of the mixing barrel will cause relative sliding between the mixing barrel and the barrel cover. On the one hand, it will cause the mixing barrel to be poorly sealed, and there is a risk of slurry leakage when rotating at high speed; on the other hand, a high vacuum degree cannot be maintained in the mixing barrel, which is not conducive to subsequent vacuum defoaming; on the other hand, the relative sliding between the mixing barrel and the barrel cover will cause friction to produce foreign matter, which will contaminate the slurry. Utility Model Content

[0005] Based on this, it is necessary to provide a stirring device that improves the above defects in order to address the problem that the rotation of the mixing barrel in the prior art will cause relative sliding between the mixing barrel and the barrel cover, which will, on the one hand, cause the mixing barrel to be poorly sealed and there is a risk of slurry leakage during high-speed rotation; on the other hand, a high vacuum degree cannot be maintained in the mixing barrel, which is not conducive to subsequent vacuum defoaming; on the other hand, the relative sliding between the mixing barrel and the barrel cover will cause friction to produce foreign matter and contaminate the slurry.

[0006] A stirring device, comprising:

[0007] A mixing barrel, used to contain the slurry;

[0008] A stirring assembly, comprising a dispersing disk disposed in the stirring barrel, wherein the dispersing disk can be controlled to rotate about its own axis and revolve about a revolution axis; the axis of the dispersing disk is parallel to the revolution axis and is not colinear; and

[0009] A plurality of spoiler strips are all protruded on the inner wall of the circumference of the mixing barrel and are arranged at intervals along the circumference of the mixing barrel. The circumference of the mixing barrel is the direction around the revolution axis.

[0010] In one embodiment, the revolution axis is colinear with the axis of the mixing barrel.

[0011] In one embodiment, each of the spoiler strips extends longitudinally from one end of the mixing barrel in a preset direction to the other end of the mixing barrel in the preset direction, and the preset direction is parallel to the revolution axis.

[0012] In one embodiment, the longitudinal extension direction of each spoiler strip is parallel to or at an angle to the axial direction of the mixing barrel.

[0013] In one embodiment, the spoiler strips are arranged at equal intervals along the circumference of the mixing barrel.

[0014] In one embodiment, the equivalent diameter R of each spoiler strip is the diameter of an imaginary circle having an area equal to the cross-section of the spoiler strip;

[0015] The arc spacing A between every two adjacent spoiler strips along the inner wall of the circumference of the mixing barrel is greater than or equal to 2×R.

[0016] In one embodiment, the stirring assembly further includes a driving mechanism, a driving end of which penetrates into the stirring barrel and is connected to the dispersion disk; the driving mechanism is used to drive the dispersion disk to rotate around its own axis and to revolve around the revolution axis.

[0017] In one embodiment, the driving mechanism includes a first driving shaft, a second driving shaft, a mounting plate and a rotating shaft;

[0018] One end of the first driving shaft penetrates into the mixing barrel and can be controlled to rotate around its own axis relative to the mixing barrel, and the own axis of the first driving shaft is the revolution axis; the mounting plate is fixedly connected to one end of the first driving shaft located in the mixing barrel, 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 own axis of the rotating shaft is parallel to and not colinear with the own axis of the first driving shaft;

[0019] The second driving shaft is coaxially sleeved in the first driving shaft and can rotate relative to the first driving shaft in a controllable manner; one end of the second driving shaft located in the mixing barrel is transmission-connected to the rotating shaft, so that the second driving shaft can drive the rotating shaft to rotate around its own axis.

[0020] In one embodiment, the driving mechanism further includes a revolving driving component and a rotating driving component, wherein the revolving driving component is in transmission connection with one end of the first driving shaft located outside the mixing barrel to drive the first driving shaft to rotate around its own axis; the rotating driving component is in transmission connection with one end of the second driving shaft located outside the mixing barrel to drive the second driving shaft to rotate around its own axis.

[0021] In one embodiment, the stirring device further comprises a barrel cover, the stirring barrel has an opening connected to the inner cavity of the stirring barrel, the barrel cover sealing cover is arranged at the opening of the stirring barrel, and the barrel cover is provided with a mounting hole for mounting the first driving shaft.

[0022] In the above stirring device, when it is actually used, the dispersion disk rotates around its own axis, thereby stirring the slurry in the stirring barrel, causing the particles in the slurry to violently sputter and collide, thereby causing the agglomerated particles to disintegrate and disperse; at the same time, the dispersion disk will also revolve around the revolution axis, causing the slurry to form violent chaos in the stirring barrel, further aggravating the disintegration and dispersion of the agglomerated particles in the slurry. When the dispersion disk rotates and revolves, the laminar flow of the slurry is greatly destroyed under the turbulence effect of each spoiler strip, that is, each spoiler strip cooperates with the rotation and revolution of the dispersion disk to further increase the turbulence and chaos of the slurry, ensuring that the slurry can be mixed relatively quickly and fully.

[0023] Compared with the prior art, the present application utilizes the spoiler strips on the inner wall of the mixing barrel in coordination with the rotation and revolution of the dispersion disk to ensure better uniform mixing of the slurry, thereby avoiding the need to drive the mixing barrel to rotate. On the one hand, this is beneficial to improving the sealing effect of the mixing barrel and reducing the risk of slurry leakage; on the other hand, it enables a high vacuum degree to be maintained in the mixing barrel, which is beneficial to subsequent vacuum defoaming; on the other hand, it avoids the relative sliding of the mixing barrel and the barrel cover and the friction that produces foreign matter, thereby avoiding contamination of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of a stirring barrel and a stirring paddle of a stirring device in the prior art;

[0025] Figure 2 This is a schematic diagram of the structure of a stirring device in one embodiment of the utility model;

[0026] Figure 3 for Figure 2 The structural schematic diagram of the stirring barrel and the dispersion plate of the stirring device shown;

[0027] Figure 4 for Figure 2 The schematic diagram of the structure of the mixing barrel of the mixing device shown. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] See also Figures 2 to 4 An embodiment of the utility model provides a stirring device for uniformly mixing slurry. The stirring device includes a stirring barrel 10, a stirring assembly (not shown) and a plurality of spoiler strips 30. The stirring barrel 10 is used to accommodate slurry. The stirring assembly includes a dispersion disc 21 disposed in the stirring barrel 10. The dispersion disc 21 can rotate around its own axis a1 in a controlled manner and revolve around a revolution axis a2. The plurality of spoiler strips 30 are all protrudingly provided on the circumferential inner wall of the stirring barrel 10, and are arranged at intervals along the circumference of the stirring barrel 10. Among them, the circumference of the stirring barrel 10 is the direction around the revolution axis a2.

[0035] In the above stirring device, when it is actually used, the dispersion disc 21 rotates around its own axis a1, thereby stirring the slurry in the stirring barrel 10, causing the particles in the slurry to violently sputter and collide, thereby causing the agglomerated particles to disintegrate and disperse; at the same time, the dispersion disc 21 will also revolve around the revolution axis a2, causing the slurry to form violent chaos in the stirring barrel 10, further exacerbating the disintegration and dispersion of the agglomerated particles in the slurry. When the dispersion disc 21 rotates and revolves, the laminar flow of the slurry is greatly destroyed under the turbulence effect of each spoiler bar 30, that is, each spoiler bar 30 cooperates with the rotation and revolution of the dispersion disc 21 to further increase the turbulence and chaos of the slurry, ensuring that the slurry can be mixed relatively quickly and fully.

[0036] Compared with the prior art, the present application utilizes the spoiler strips 30 on the inner wall of the mixing barrel 10 in coordination with the rotation and revolution of the dispersion disk 21 to ensure better uniform mixing of the slurry, thereby avoiding the need to drive the mixing barrel 10 to rotate. On the one hand, this is beneficial to improving the sealing effect of the mixing barrel 10 and reducing the risk of slurry leakage; on the other hand, it enables a high vacuum degree to be maintained in the mixing barrel 10, which is beneficial to subsequent vacuum defoaming; on the other hand, it avoids the relative sliding and friction between the mixing barrel 10 and the barrel cover 40 to generate foreign matter, thereby avoiding contamination of the slurry.

[0037] Specifically in the embodiment, the above-mentioned revolution axis a2 is collinear with the axis of the mixing barrel 10, so that the dispersion disk 21 revolves around the axis of the mixing barrel 10, and each spoiler strip 30 is arranged on the inner wall of the mixing barrel 10 at intervals around the axis of the mixing barrel 10, which greatly improves the spoiler effect of each spoiler strip 30 and further improves the efficiency of uniformly mixing the slurry. It should be noted that the revolution axis a2 and the axis of the mixing barrel 10 are collinear, which should be understood as the revolution axis a2 and the axis of the mixing barrel 10 are roughly collinear, and a certain error is allowed.

[0038] Specifically in the embodiment, each spoiler strip 30 extends longitudinally from one end of the mixing barrel 10 in a preset direction to the other end of the mixing barrel 10 in the preset direction, and the preset direction is parallel to the revolution axis a2. Specifically, the revolution axis a2 is parallel to the vertical direction, that is, the preset direction is the vertical direction, and each spoiler strip 30 extends longitudinally from the bottom of the mixing barrel 10 to the top of the mixing barrel 10, and the length of the spoiler strip 30 is extended as much as possible to ensure the spoiler effect.

[0039] Optionally, the longitudinal extension direction of each spoiler strip 30 is parallel to the axial direction of the mixing barrel 10. Specifically, the axial direction of the mixing barrel 10 is the vertical direction, and each spoiler strip 30 extends longitudinally along the vertical direction. Of course, in other embodiments, the longitudinal extension direction of each spoiler strip 30 may also be at an angle to the axial direction of the mixing barrel 10, that is, each spoiler strip 30 is arranged tilted relative to the axial direction of the mixing barrel 10, and the tilt angle of the spoiler strip 30 is not limited here.

[0040] Optionally, the spoiler strips 30 are arranged at equal intervals along the circumference of the mixing barrel 10, so as to ensure that the spoiler effect of each area in the mixing barrel 10 is relatively consistent, which is beneficial to improving the uniform mixing effect of the slurry.

[0041] Optionally, the cross-sections at different positions of the same spoiler strip 30 have the same shape and equal area. The cross-sectional shape of the spoiler strip 30 can be circular, elliptical, rectangular, trapezoidal or triangular, etc. Of course, the cross-sectional shape of the spoiler strip 30 can also be an irregular shape, which is not limited here. The cross-sectional shapes of each spoiler strip 30 can be the same or different, which is not limited here.

[0042] Preferably, the equivalent diameter R of each spoiler strip 30 refers to the diameter of an imaginary circle having the same area as the cross section of the spoiler strip 30. The arc spacing A between each two adjacent spoiler strips 30 along the inner wall of the circumference of the mixing barrel 10 is greater than or equal to 2×R. In this way, each spoiler strip 30 has a better spoiling effect on the slurry in the mixing barrel 10, which is conducive to improving the efficiency of uniformly mixing the slurry. For example, the equivalent diameter R of each spoiler strip 30 is 32 mm, and the arc spacing A between each two adjacent spoiler strips 30 along the inner wall of the circumference of the mixing barrel 10 is 5×R=160 mm.

[0043] Specifically in the embodiment, the mixing barrel 10 has an opening 14 communicating with the inner cavity of the mixing barrel 10. The mixing device further comprises a barrel cover 40, which is sealed and arranged at the opening 14 of the mixing barrel 10, so that the mixing barrel 10 and the barrel cover 40 together form a sealed space for containing slurry.

[0044] Specifically in the embodiment, the mixing barrel 10 includes an inner barrel and an outer barrel sleeved outside the inner barrel, and a cooling interlayer 13 is formed between the inner barrel and the outer barrel. An inlet 11 and an outlet 12 are provided on the outer barrel, both of which are connected to the cooling interlayer 13. The inlet 11 is used to input a coolant into the cooling interlayer 13, and the coolant in the cooling interlayer 13 cools the slurry in the inner barrel, thereby preventing the slurry from being too high in temperature due to the heat generated during the mixing process. The coolant in the cooling interlayer 13 is discharged from the outlet 12, thereby taking away the heat.

[0045] In the embodiment of the present application, a mounting hole 41 is provided on the barrel cover 40, and the stirring assembly further includes a driving mechanism 22. The driving end of the driving mechanism 22 passes through the mounting hole 41 on the barrel cover 40 into the stirring barrel 10 and is connected to the dispersion disc 21. The driving mechanism 22 can drive the dispersion disc 21 to rotate around its own axis a1 and simultaneously revolve around the revolution axis a2.

[0046] Specifically in the embodiment, the driving mechanism 22 includes a first driving shaft 220, a second driving shaft 221, a mounting disk 222 and a rotating shaft 223. The first driving shaft 220 passes through the mounting hole 41 on the barrel cover 40, so that one end of the first driving shaft 220 is located in the mixing barrel 10, and the other end of the first driving shaft 220 is located outside the mixing barrel 10. The first driving shaft 220 can be controlled to rotate around its own axis relative to the mixing barrel 10. The mounting disk 222 is fixedly connected to one end of the first driving shaft 220 located in the mixing barrel 10, so that the mounting disk 222 can rotate with the first driving shaft 220. The rotating shaft 223 is rotatably connected to the mounting disk 222 around its own axis, and the dispersion disk 21 is installed on the rotating shaft 223. The axis of the rotating shaft 223 is parallel to the axis of the first driving shaft 220 and is not colinear. The second driving shaft 221 is coaxially sleeved inside the first driving shaft 220, so that one end of the second driving shaft 221 is located inside the mixing barrel 10, and the other end of the second driving shaft 221 is located outside the mixing barrel 10. The second driving shaft 221 can be controlled to rotate relative to the first driving shaft 220. One end of the second driving shaft 221 located inside the mixing barrel 10 is transmission-connected to the rotating shaft 223, so that the second driving shaft 221 can drive the rotating shaft 223 to rotate around its own axis.

[0047] In this way, when the first driving shaft 220 is controlled to rotate around its own axis, the first driving shaft 220 can drive the mounting plate 222, the rotating shaft 223 and the dispersion plate 21 to rotate around the own axis of the first driving shaft 220. Since the own axis of the first driving shaft 220 is the above-mentioned revolution axis a2, the first driving shaft 220 can drive the dispersion plate 21 to revolve around the revolution axis a2.

[0048] When the second driving shaft 221 is controlled to rotate around its own axis, the second driving shaft 221 can drive the rotating shaft 223 to rotate around its own axis relative to the mounting plate 222, thereby driving the dispersion plate 21 on the rotating shaft 223 to rotate around its own axis a1.

[0049] Optionally, the first driving shaft 220 can be installed on the barrel cover 40 via a bearing, so that the first driving shaft 220 can rotate around its own axis relative to the barrel cover 40. The second driving shaft 221 is arranged through the first driving shaft 220 and is coaxial with the first driving shaft 220. The second driving shaft 221 and the first driving shaft 220 can also be connected by a bearing, so that the second driving shaft 221 can rotate around its own axis relative to the first driving shaft 220. In other words, both the first driving shaft 220 and the second driving shaft 221 can rotate around their own axes relative to the barrel cover 40, and the two do not interfere with each other. The rotating shaft 223 can also be installed on the mounting plate 222 via a bearing, so that the rotating shaft 223 can rotate around its own axis relative to the mounting plate 222.

[0050] Furthermore, the driving mechanism 22 also includes a first transmission structure 224, which is arranged between one end of the second driving shaft 221 located in the mixing barrel 10 and the rotating shaft 223 to transmit the rotational motion of the second driving shaft 221 to the rotating shaft 223, so that when the second driving shaft 221 rotates around its own axis, it can drive the rotating shaft 223 to rotate around its own axis, and then drive the dispersion disk 21 on the rotating shaft 223 to rotate around its own axis a1.

[0051] Optionally, the first transmission structure 224 includes a driving gear and a driven gear. The driving gear is installed at one end of the second driving shaft 221 located in the mixing barrel 10, so that the second driving shaft 221 and the driving gear rotate synchronously. The driven gear is installed on the rotating shaft 223, so that the driven gear and the rotating shaft 223 rotate synchronously. The driving gear and the driven gear are meshed with each other, so that when the driving gear rotates with the second driving shaft 221, the driven gear can drive the driven gear to rotate, and then the driven gear drives the rotating shaft 223 and the dispersion disk 21 on the rotating shaft 223 to rotate. It should be noted that the first transmission structure 224 is not limited to the use of 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.

[0052] Specifically in the embodiment, the driving mechanism 22 further includes a revolution driving member 225 and a rotation driving member 227. The revolution driving member 225 is in driving connection with one end of the first driving shaft 220 located outside the mixing barrel 10, so that the revolution driving member 225 can drive the first driving shaft 220 to rotate around its own axis, thereby driving the dispersion disk 21 to revolve around the revolution axis a2. The rotation driving member 227 is in driving connection with one end of the second driving shaft 221 located outside the mixing barrel 10, so as to drive the second driving shaft 221 to rotate around its own axis, thereby driving the dispersion disk 21 to rotate around its own axis a1.

[0053] Furthermore, the driving mechanism 22 further includes a second transmission structure 226, which is disposed between the output shaft of the revolution driving member 225 and the first driving shaft 220, and is used to transmit the rotational motion output by the revolution driving member 225 to the first driving shaft 220, so that the revolution driving member 225 can drive the first driving shaft 220 to rotate around its own axis. Optionally, the revolution driving member 225 can be a motor.

[0054] Optionally, the second transmission structure 226 adopts a chain transmission structure. Of course, in other embodiments, the second transmission structure 226 may also adopt a gear transmission structure or a belt transmission structure, which is not limited here.

[0055] Furthermore, the driving mechanism 22 further includes a third transmission structure 228, which is disposed between the output shaft of the self-rotating driving member 227 and the second driving shaft 221, and is used to transmit the rotational motion output by the self-rotating driving member 227 to the second driving shaft 221, so that the self-rotating driving member 227 can drive the second driving shaft 221 to rotate. Optionally, the self-rotating driving member 227 can be a motor.

[0056] Optionally, the third transmission structure 228 adopts a chain transmission structure. Of course, in other embodiments, the third transmission structure 228 may also adopt a gear transmission structure or a belt transmission structure, which is not limited here.

[0057] In order to illustrate the beneficial effects of the stirring device in the present application, the following is a comparison between Example 1 and the comparative example. Figures 2 to 3 The stirring device shown in the figure is used for slurry preparation. Figure 1 The stirring device in the prior art shown is used for slurrying. The diameter of the dispersion disk 21 of 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 barrel 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. On the premise that the quality of the slurry prepared in Example 1 is consistent with that of the slurry prepared in the comparative example, the slurrying time and energy consumption of the stirring device in Example 1 and the stirring device in the comparative example are collected respectively. It should be noted that the quality of the slurry is characterized by viscosity, particle size, rheology, etc.

[0058] Table 1 Negative electrode material formulation parameters

[0059]

[0060] Comparison results: Under the premise of obtaining the same quality of slurry, the slurry making time of the stirring device in Example 1 is 115 minutes, and the slurry making time of the stirring device in the comparative example is 130 minutes. It can be seen that the slurry making time of the stirring device in Example 1 (i.e., the stirring device in the present application) is lower than the slurry making time of the stirring device in the comparative example (i.e., the stirring device in the prior art). In other words, the stirring device in the present application is more efficient in uniformly mixing the slurry.

[0061] Under the premise of obtaining the same quality of slurry, the electric energy consumed by the stirring device in Example 1 is 37.0 kWh, and the electric energy consumed by the stirring device in the comparative example is 43.6 kWh. It can be seen that the electric energy consumption of the stirring device in Example 1 (i.e., the stirring device in the present 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A stirring device, characterized in that: include: A mixing barrel, used to contain the slurry; A stirring assembly, comprising a dispersing disk disposed in the stirring barrel, wherein the dispersing disk can be controlled to rotate about its own axis and revolve about a revolution axis; the axis of the dispersing disk is parallel to the revolution axis and is not colinear; and A plurality of spoiler strips are all protruded on the inner wall of the circumference of the mixing barrel and are arranged at intervals along the circumference of the mixing barrel. The circumference of the mixing barrel is the direction around the revolution axis.

2. The stirring device according to claim 1, characterized in that: The revolution axis is colinear with the axis of the mixing barrel.

3. The stirring device according to claim 1, characterized in that: Each of the spoiler strips extends longitudinally from one end of the mixing barrel in a preset direction to the other end of the mixing barrel in the preset direction, and the preset direction is parallel to the revolution axis.

4. The stirring device according to claim 3, characterized in that: The longitudinal extension direction of each spoiler strip is parallel to or at an angle to the axial direction of the mixing barrel.

5. The stirring device according to claim 1, characterized in that: The spoiler strips are arranged at equal intervals along the circumference of the mixing barrel.

6. The stirring device according to claim 1, characterized in that: The equivalent diameter R of each spoiler strip is the diameter of an imaginary circle having the same area as the cross section of the spoiler strip; The arc spacing A between every two adjacent spoiler strips along the inner wall of the circumference of the mixing barrel is greater than or equal to 2×R.

7. The stirring device according to any one of claims 1 to 6, characterized in that: The stirring assembly also includes a driving mechanism, a driving end of which penetrates into the stirring barrel and is connected to the dispersion disk; the driving mechanism is used to drive the dispersion disk to rotate around its own axis and to revolve around the revolution axis.

8. The stirring device according to claim 7, characterized in that: The driving mechanism includes a first driving shaft, a second driving shaft, a mounting plate and a rotating shaft; One end of the first driving shaft penetrates into the mixing barrel and can be controlled to rotate around its own axis relative to the mixing barrel, and the own axis of the first driving shaft is the revolution axis; the mounting plate is fixedly connected to one end of the first driving shaft located in the mixing barrel, 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 own axis of the rotating shaft is parallel to and not colinear with the own axis of the first driving shaft; The second driving shaft is coaxially sleeved in the first driving shaft and can rotate relative to the first driving shaft in a controllable manner; one end of the second driving shaft located in the mixing barrel is transmission-connected to the rotating shaft, so that the second driving 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 also includes a revolving driving member and a rotating driving member. The revolving driving member is transmission-connected to one end of the first driving shaft located outside the mixing barrel to drive the first driving shaft to rotate around its own axis; the rotating driving member is transmission-connected to one end of the second driving shaft located outside the mixing barrel to drive the second driving shaft to rotate around its own axis.

10. The stirring device according to claim 8, characterized in that: The stirring device further comprises a barrel cover, the stirring barrel has an opening communicating with the inner cavity of the stirring barrel, the barrel cover sealing cover is arranged at the opening of the stirring barrel, and the barrel cover is provided with a mounting hole for mounting the first driving shaft.

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