Disclosure of utility model
Based on the above, it is necessary to provide a stirring device for solving the problems that in the prior art, relative sliding is caused between a stirring barrel and a barrel cover due to rotation of the stirring barrel, on one hand, sealing of the stirring barrel is not tight, slurry leakage occurs due to high-speed rotation, on the other hand, high vacuum cannot be maintained in the stirring barrel, subsequent vacuum defoaming is not facilitated, and on the other hand, foreign matters are generated due to friction caused by relative sliding of the stirring barrel and the barrel cover, and slurry is polluted.
A stirring device, comprising:
A stirring barrel for accommodating the slurry;
The stirring assembly comprises a dispersing disc arranged in the stirring barrel, wherein the dispersing disc can controllably rotate around the self axis and revolve around a revolution axis, the self axis of the dispersing disc is parallel and non-collinear with the revolution axis, and the stirring assembly comprises a stirring device, a stirring device and a stirring device
The stirring barrel comprises a stirring barrel, a plurality of turbulence strips, a plurality of stirring grooves and a plurality of stirring grooves, wherein the turbulence strips are all arranged on the inner wall of the periphery of the stirring barrel in a protruding mode and are distributed at intervals along the periphery of the stirring barrel, and the periphery of the stirring barrel is in a direction around the revolution axis.
In one embodiment, the revolution axis is collinear with the mixer drum's own axis.
In one embodiment, each turbulence bar extends from one end of the stirring barrel in a preset direction to the other end of the stirring barrel in the preset direction in a longitudinal direction, and the preset direction is parallel to the revolution axis.
In one embodiment, the longitudinal extension direction of each turbulence bar is parallel to or forms an included angle with the axial direction of the stirring barrel.
In one embodiment, each of the spoiler bars is disposed at equal intervals along a circumferential direction of the stirring tub.
In one embodiment, the equivalent diameter R of each spoiler is the diameter of a dummy circle equal to the area of the cross section of the spoiler;
And the arc distance A between every two adjacent turbulence strips along the inner wall of the circumference side of the stirring barrel is more than or equal to 2 xR.
In one embodiment, the stirring assembly further comprises a driving mechanism, wherein the driving end of the driving mechanism penetrates through the stirring barrel and is connected with the dispersing disc, and the driving mechanism is used for driving the dispersing disc to rotate around the axis of the dispersing disc and revolve around the revolution axis.
In one embodiment, the driving mechanism comprises a first driving shaft, a second driving shaft, a mounting plate and a rotating shaft;
The first driving shaft is fixedly connected to one end of the first driving shaft, which is positioned in the stirring barrel, the rotating shaft is rotatably connected to the mounting plate around the self axis, the dispersing plate is arranged on the rotating shaft, and the self axis of the rotating shaft is parallel to and not collinear with the self 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 controlled manner, and one end of the second driving shaft, which is positioned in the stirring barrel, is in transmission connection with the rotating shaft so that the second driving shaft can drive the rotating shaft to rotate around the axis of the second driving shaft.
In one embodiment, the driving mechanism further comprises a revolution driving piece and a rotation driving piece, wherein the revolution driving piece is in transmission connection with one end of the first driving shaft, which is positioned outside the stirring barrel, so as to drive the first driving shaft to rotate around the axis of the first driving shaft, and the rotation driving piece is in transmission connection with one end of the second driving shaft, which is positioned outside the stirring barrel, so as to drive the second driving shaft to rotate around the axis of the second driving shaft.
In one embodiment, the stirring device further comprises a barrel cover, the stirring barrel is provided with an opening communicated 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.
The stirring device is characterized in that the stirring device comprises a stirring barrel, a dispersing disc, a stirring device and a stirring device, wherein the stirring device is used for dispersing slurry in the stirring barrel by coiling the dispersing disc around the axis of the dispersing disc, so that the slurry in the stirring barrel is stirred, particles in the slurry are subjected to severe sputtering and collision, agglomerated particles are dispersed in a deagglomeration mode, and meanwhile, the dispersing disc revolves around the revolution axis, so that the slurry forms severe chaos in the stirring barrel, and the deagglomeration and the dispersion of the agglomerated particles in the slurry are further enhanced. When the dispersion disc rotates and revolves, laminar flow of the slurry is greatly destroyed under the turbulent flow action of each turbulent flow strip, namely, the turbulent flow and chaos degree of the slurry are further improved by matching the turbulent flow strips with the rotation and revolution of the dispersion disc, and the slurry can be ensured to be mixed more quickly and fully.
Compared with the prior art, the stirring barrel has the advantages that the stirring barrel is prevented from being driven to rotate due to the fact that rotation and revolution of each turbulence strip on the inner wall of the stirring barrel and the dispersing disc are matched, the uniform mixing effect of slurry is guaranteed, the stirring barrel is prevented from being driven to rotate, on one hand, the sealing effect of the stirring barrel is improved, the slurry leakage risk is reduced, on the other hand, the stirring barrel can keep high vacuum, follow-up 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 the slurry is prevented from being polluted.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, 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", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 2 to 4, an embodiment of the present utility model provides a stirring device for uniformly mixing slurry. The stirring device comprises a stirring barrel 10, a stirring assembly (not shown) and a plurality of turbulence bars 30. The stirring tank 10 is used for accommodating slurry. The mixing assembly includes a dispersion plate 21 disposed within the mixing drum 10. The dispersion disk 21 is controllably rotated about its own axis a1 and revolved about a revolution axis a 2. The turbulence bars 30 are all arranged on the inner wall of the circumference of the stirring barrel 10 in a protruding manner, and are arranged at intervals along the circumference of the stirring barrel 10. Wherein the circumferential direction of the stirring tub 10 is a direction around the revolution axis a 2.
In the above stirring device, during actual use, the dispersing disc 21 rotates around the axis a1 thereof, so as to stir the slurry in the stirring barrel 10, so that particles in the slurry are subjected to severe sputtering and collision, and agglomerated particles are dispersed by deagglomeration, and meanwhile, the dispersing disc 21 also revolves around the revolution axis a2, so that the slurry forms severe chaos in the stirring barrel 10, and the deagglomeration and dispersion of the agglomerated particles in the slurry are further enhanced. When the dispersion plate 21 rotates and revolves, laminar flow of the slurry is greatly destroyed under the turbulent flow action of each turbulent flow strip 30, namely, the turbulent flow and chaos degree of the slurry are further improved by matching the rotation and revolution of each turbulent flow strip 30 with the dispersion plate 21, and the slurry can be ensured to be mixed more quickly and fully and uniformly.
Compared with the prior art, the stirring barrel has the advantages that the uniform mixing effect on slurry is better by utilizing the rotation and revolution coordination of each turbulence bar 30 on the inner wall of the stirring barrel 10 and the dispersing disc 21, the stirring barrel 10 is prevented from being driven to rotate, on one hand, the sealing effect of the stirring barrel 10 is improved, the slurry leakage risk is reduced, on the other hand, the stirring barrel 10 can maintain higher vacuum degree, the subsequent vacuum defoaming is facilitated, and on the other hand, foreign matters generated by friction caused by relative sliding of the stirring barrel 10 and the barrel cover 40 are avoided, and further the slurry is prevented from being polluted.
In the embodiment, the revolution axis a2 is collinear with the self axis of the stirring barrel 10, so that the dispersion plate 21 revolves around the self axis of the stirring barrel 10, and the turbulence strips 30 are distributed on the inner wall of the stirring barrel 10 at intervals around the self axis of the stirring barrel 10, thereby greatly improving the turbulence effect of the turbulence strips 30 and further improving the efficiency of uniformly mixing the slurry. It should be noted that the fact that the revolution axis a2 is collinear with the own axis of the stirring vessel 10 means that the revolution axis a2 is substantially collinear with the own axis of the stirring vessel 10, and a certain error is allowed.
In particular, in the embodiment, each of the spoiler bars 30 extends lengthwise from one end of the stirring tub 10 in a preset direction, which is parallel to the revolution axis a2, to the other end of the stirring tub 10 in the preset direction. Specifically, the revolution axis a2 is parallel to the vertical direction, that is, the preset direction is the vertical direction, and each turbulence bar 30 extends from the bottom of the stirring tank 10 to the top of the stirring tank 10 lengthwise, so that the length of the turbulence bar 30 is prolonged as much as possible, and the turbulence effect is ensured.
Optionally, the lengthwise extension of each spoiler 30 is parallel to the axial direction of the mixing tub 10. Specifically, the axial direction of the stirring tank 10 is a vertical direction, and each spoiler 30 extends lengthwise in the vertical direction. Of course, in other embodiments, the longitudinal extending direction of each spoiler 30 may also form an angle with the axial direction of the mixing tub 10, that is, each spoiler 30 is disposed obliquely with respect to the axial direction of the mixing tub 10, and the inclination angle of the spoiler 30 is not limited herein.
Optionally, each turbulence bar 30 is uniformly distributed along the circumference of the stirring barrel 10, so as to ensure that the turbulence effect of each area in the stirring barrel 10 is consistent, and the uniform mixing effect of the slurry is improved.
Alternatively, the cross-sections of different locations of the same spoiler 30 are identical in shape and equal in area. The cross-sectional shape of the spoiler 30 may be circular, elliptical, rectangular, trapezoidal, triangular, or the like. Of course, the cross-sectional shape of the spoiler 30 may also be an irregular shape, which is not limited herein. The cross-sectional shapes of the respective spoiler bars 30 may be the same or different, and are not limited herein.
Preferably, the equivalent diameter R of each spoiler 30 refers to the diameter of a dummy circle equal to the area of the cross-section of the spoiler 30. The arc distance a between every two adjacent turbulence bars 30 along the circumferential side inner wall of the stirring vessel 10 is greater than or equal to 2 xr. Thus, each turbulence bar 30 has a better turbulence effect on the slurry in the stirring barrel 10, and is beneficial to improving the efficiency of uniformly mixing the slurry. For example, the equivalent diameter R of each of the spoiler bars 30 is 32mm, and the arc distance a of each adjacent two of the spoiler bars 30 along the peripheral side inner wall of the stirring tub 10 is 5×r=160 mm.
In particular to the embodiment, the mixing drum 10 has an opening 14 in communication with the interior cavity of the mixing drum 10. The stirring device further comprises a tub cover 40, and the tub cover 40 is sealed at the opening 14 of the stirring tub 10, so that the stirring tub 10 and the tub cover 40 together form a sealed space for accommodating slurry.
In particular to the embodiment, the stirring barrel 10 comprises 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. The outer barrel is provided with an inlet 11 and an outlet 12 which are both communicated with the cooling interlayer 13. The inlet 11 is used for inputting cooling liquid into the cooling interlayer 13, and the cooling liquid in the cooling interlayer 13 cools the slurry in the inner barrel, so that the slurry temperature is prevented from being too high due to heat generated in the stirring process. The cooling liquid in the cooling interlayer 13 is discharged from the outlet 12, thereby taking heat away.
In the embodiment of the application, the barrel cover 40 is provided with a mounting hole 41, and the stirring assembly further comprises a driving mechanism 22. The driving end of the driving mechanism 22 penetrates into the stirring barrel 10 through a mounting hole 41 on the barrel cover 40 and is connected with the dispersing disc 21. The drive mechanism 22 is capable of driving the dispersion disk 21 to rotate about the own axis a1 and revolve around the revolution axis a 2.
In particular, in the embodiment, the driving mechanism 22 includes a first driving shaft 220, a second driving shaft 221, a mounting plate 222, and a rotation shaft 223. The first driving shaft 220 is inserted into the mounting hole 41 on the tub cover 40, so that one end of the first driving shaft 220 is located in the tub 10, and the other end of the first driving shaft 220 is located outside the tub 10. The first drive shaft 220 is controllably rotatable about its own axis relative to the mixing drum 10. The mounting plate 222 is fixedly connected to an end of the first driving shaft 220 located in the tub 10 such that the mounting plate 222 can rotate following the first driving shaft 220. The rotation shaft 223 is rotatably connected to the mounting plate 222 about its own axis, and the dispersion plate 21 is mounted on the rotation shaft 223, and the own axis of the rotation shaft 223 is parallel and non-collinear with the own axis of the first driving shaft 220. The second driving shaft 221 is coaxially sleeved inside the first driving shaft 220 such that one end of the second driving shaft 221 is located inside the stirring barrel 10 and the other end of the second driving shaft 221 is located outside the stirring barrel 10. The second drive shaft 221 is controllably rotatable relative to the first drive shaft 220. One end of the second driving shaft 221 located in the stirring barrel 10 is in transmission connection with the rotating shaft 223, so that the second driving shaft 221 can drive the rotating shaft 223 to rotate around the axis of the second driving shaft.
Thus, when the first driving shaft 220 is controlled to rotate around its own axis, the first driving shaft 220 can rotate around its own axis of the first driving shaft 220 with the mounting plate 222, the rotation shaft 223, and the dispersion plate 21. Since the own axis of the first driving shaft 220 is the revolution axis a2, the first driving shaft 220 can drive the dispersion disk 21 to revolve around the revolution axis a 2.
When the second driving shaft 221 is controlled to rotate around the own axis, the second driving shaft 221 can drive the rotating shaft 223 to rotate around the own axis relative to the mounting plate 222, and further drive the dispersing plate 21 on the rotating shaft 223 to rotate around the own axis a 1.
Alternatively, the first driving shaft 220 may be bearing-mounted on the tub cover 40 such that the first driving shaft 220 can rotate about its own axis with respect to the tub cover 40. The second driving shaft 221 is disposed 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 may also be connected by a bearing, so that the second driving shaft 221 may rotate around its own axis relative to the first driving shaft 220. That is, the first driving shaft 220 and the second driving shaft 221 can rotate around their axes relative to the tub cover 40, and do not interfere with each other. The rotation shaft 223 may also be mounted on the mounting plate 222 by a bearing such that the rotation shaft 223 can rotate about its own axis with respect to the mounting plate 222.
Further, the driving mechanism 22 further includes a first transmission structure 224, where the first transmission structure 224 is disposed between one end of the second driving shaft 221 located in the stirring barrel 10 and the rotating shaft 223, so as to transmit the rotating motion of the second driving shaft 221 to the rotating shaft 223, so that the second driving shaft 221 can rotate around its own axis when rotating around its own axis, and further drive the dispersing disc 21 on the rotating shaft 223 to rotate around its own axis a 1.
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 tub 10 such that the second driving shaft 221 and the driving gear rotate synchronously. The driven gear is mounted on the rotation shaft 223 such that the driven gear rotates in synchronization with the rotation shaft 223. The driving gear is engaged with the driven gear, so that the driven gear can be driven to rotate when the driving gear follows the second driving shaft 221 to rotate, and the driven gear drives the rotation shaft 223 and the dispersion disk 21 on the rotation shaft 223 to rotate. It should be noted that, the first transmission structure 224 is not limited to the gear transmission structure, and in other embodiments, a belt transmission structure or a chain transmission structure may be used, which is not limited herein.
In particular embodiments, the drive mechanism 22 further includes a revolution drive 225 and a rotation drive 227. The revolution driving member 225 is in driving connection with one end of the first driving shaft 220 located outside the stirring tub 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 a 2. The rotation driving member 227 is in transmission connection with one end of the second driving shaft 221 located outside the stirring barrel 10, so as to drive the second driving shaft 221 to rotate around its own axis, thereby driving the dispersion disc 21 to rotate around its own axis a 1.
Further, the driving mechanism 22 further includes a second transmission structure 226 provided between the output shaft of the revolution driving piece 225 and the first driving shaft 220 for transmitting the rotational motion outputted from the revolution driving piece 225 to the first driving shaft 220, so that the revolution driving piece 225 can drive the first driving shaft 220 to rotate about its own axis. Alternatively, the revolution driving part 225 may employ a motor.
Alternatively, the second transmission structure 226 employs 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 herein.
Further, the driving mechanism 22 further includes a third transmission structure 228, and the third transmission structure 228 is disposed between the output shaft of the rotation driving member 227 and the second driving shaft 221, for transmitting the rotation motion output from the rotation driving member 227 to the second driving shaft 221, so that the rotation driving member 227 can drive the second driving shaft 221 to rotate. Alternatively, the rotation driving part 227 may employ a motor.
Optionally, the third transmission 228 employs a chain transmission. Of course, in other embodiments, the third transmission structure 228 may also be a gear transmission structure or a belt transmission structure, which is not limited herein.
In order to illustrate the beneficial effects of the stirring device of the present application, example 1 is compared with comparative example. Wherein, example 1 was slurried using a stirring device as shown in fig. 2 to 3, and comparative example was slurried using a stirring device of the prior art as shown in fig. 1. The diameter of the dispersion plate 21 of the stirring device used in example 1 and that of the stirring device used in comparative example were 200mm, and the volume of the stirring vessel 10 was 50L. The same anode material formulation was used for the slurries in example 1 and comparative example, and the anode material formulation parameters are shown in table 1. The pulping time and energy consumption of the stirring device in example 1 and the stirring device in comparative example were collected, respectively, on the premise that the pulp produced in example 1 was consistent with the pulp produced in comparative example. The quality of the slurry is characterized by viscosity, granularity, rheological property and the like.
TABLE 1 negative electrode Material formulation parameters
As a result of comparison, the stirring apparatus of example 1 had a pulping time of 115 minutes and the stirring apparatus of comparative example had a pulping time of 130 minutes on the premise that the same quality of slurry was obtained. It can be seen that the pulping time of the stirring device in example 1 (i.e., the stirring device in the present application) was lower than that of the stirring device in the comparative example (i.e., the stirring device in the prior art). That is, the stirring device of the present application has high efficiency in uniformly mixing the slurry.
On the premise of obtaining the same quality of slurry, the electric power consumed by the stirring device in example 1 was 37.0kWh, and the electric power consumed by the stirring device in comparative example was 43.6kWh. It can be seen that the electric power consumption of the stirring device in example 1 (i.e., the stirring device in the present application) was only 85% of that of the stirring device in the comparative example (i.e., the stirring device in the prior art).
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.