A vortex delamination stirring device

Abstract

This invention relates to the field of mixing device technology and provides a vortex stratified mixing device, including a mixing tank, an upper mixing assembly, and a lower mixing assembly. The upper mixing assembly is disposed above the lower mixing assembly and includes two radial mixing elements and a shearing mixing element rotatably disposed between the radial mixing elements. The lower mixing assembly includes an outer spiral fan blade and an inner spiral fan blade arranged coaxially. The radial mixing elements, shearing mixing element, and outer and inner spiral fan blades divide the interior of the mixing tank into different vortex flow fields in upper and lower layers. This device solves the problem of increased energy consumption and wear caused by increasing the rotation speed to improve the mixing degree. It achieves the effect of improving mixing capacity and reducing the energy consumption required for mixing and the wear of the device itself by stratifying the vortex inside the mixing device through upper and lower mixing assemblies and performing different mixing methods for different vortex levels without increasing the rotation speed.

Description

Technical Field

[0001] This invention relates to the field of stirring device technology, and more specifically, to a vortex stratification stirring device. Background Technology

[0002] Agitators are specialized mechanical devices used for material mixing and reaction promotion. They are mainly applied in industries such as chemical engineering, new energy, biopharmaceuticals, environmental protection, and food and beverage, and have extended to fields such as dry mortar, refractory materials, and flue gas desulfurization. Their functions cover liquid dispersion, solid-liquid suspension, and high-viscosity fluid treatment, achieving macroscopic and microscopic mixing equilibrium through different structures of agitators such as propeller, turbine, and anchor agitators.

[0003] Patent CN113021631B discloses a stirring device, including a stirring shaft, an elastomer, blades, and a driver. The elastomer is disposed on the stirring shaft, and the blades are movably disposed on the stirring shaft radially. The first end of the blades abuts against the elastomer, so that the second end of the blades can contact or detach from the inner wall of the material container. The output end of the driver is connected to the stirring shaft to drive the blades to rotate and stir the fluid in the material container.

[0004] Although the aforementioned device provides radial pressure at the first end of the blades via an elastomer, and the second end of the blades is in close contact with the inner wall of the hopper to prevent the fluid from adhering to the inner wall, traditional mixing devices develop vortices inside the device after the rotational speed reaches a certain level. Vortices are a rotating flow state with characteristics such as eddies and turbulence, effectively mixing the materials and tumbling the bottom material upwards to mix with the upper material. As the rotational speed continues to increase, turbulence occurs inside the mixing device. Turbulence is a high-speed rotating flow state that can thoroughly mix the materials, but it also increases the power consumption of the agitator. In other words, to ensure thorough mixing, the mixing speed must be increased; however, increased speed leads to increased energy consumption and increased wear on the mixing device.

[0005] Therefore, it is necessary to propose a stirring device that, while maintaining the fluid material inside the stirring device in a vortex state, improves the motion state of the fluid material at different levels of the vortex by stratifying the vortex, thereby enhancing the degree of stirring without increasing the rotational speed, and thus effectively reducing the energy consumption required for stirring and reducing the wear of the stirring device. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a vortex stratification stirring device that, by using upper and lower stirring components to stratify the vortex inside the stirring device, performs different stirring methods on different vortex levels, thereby improving stirring capacity without increasing rotational speed, reducing energy consumption required for stirring, and minimizing wear on the device itself.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A vortex stratified mixing device includes a mixing tank, an upper mixing component and a lower mixing component disposed inside the mixing tank, and a drive component for driving the upper and lower mixing components. The drive component includes a mixing motor mounted on the top of the mixing tank and a mixing shaft extending through into the interior of the mixing tank. The upper mixing component is disposed above the lower mixing component and includes two radial mixing elements and a shear mixing element rotatably disposed between the radial mixing elements. The lower mixing component includes an outer spiral fan blade and an inner spiral fan blade arranged coaxially. The radial mixing elements, the shear mixing element, and the outer and inner spiral fan blades divide the interior of the mixing tank into different vortex flow fields in upper and lower layers.

[0009] The present invention is further configured such that: the radial stirring component includes a first structural frame and a second structural frame fixedly installed on the stirring shaft, the first structural frame is disposed above the second structural frame, and side stirring blades are respectively disposed on both sides of the first structural frame and the second structural frame.

[0010] The present invention is further configured such that the side stirring blades on the first structural frame are disposed toward the second structural frame, and the side stirring blades on the second structural frame are disposed toward the first structural frame.

[0011] The present invention is further configured such that: the shearing and mixing component includes a radial fan blade and a first inclined fan blade and a second inclined fan blade respectively connected to both ends of the radial fan blade, wherein the first inclined fan blade is disposed above the radial fan blade and the second inclined fan blade is disposed below the radial fan blade.

[0012] The present invention is further configured such that: the radial fan blade axis is arranged in a horizontal direction, and the two sides of the radial fan blade extend outward at an angle relative to its axis to form fan blades.

[0013] The present invention is further configured such that: the axes of the first inclined fan blade and the second inclined fan blade are inclined relative to the vertical direction, and the axes of the first inclined fan blade and the second inclined fan blade are parallel to each other, and the two sides of the first inclined fan blade and the second inclined fan blade extend outward at an incline relative to their axes to form fan blades.

[0014] The present invention is further configured such that: an upper rotating shaft and a lower rotating shaft are respectively provided at both ends of the first inclined fan blade and the second inclined fan blade, and the upper rotating shaft and the lower rotating shaft are respectively rotatably mounted on the radial stirring member.

[0015] The present invention is further configured such that: the lower stirring assembly further includes a connecting sleeve installed on the stirring shaft, and horizontal connecting rods are symmetrically connected to the connecting sleeve, and the two ends of the outer spiral fan blades are connected to the horizontal connecting rods.

[0016] The invention is further configured such that: the outer spiral fan blade spirally surrounds the outer side of the inner spiral fan blade, the end of the inner spiral fan blade is fixedly connected to the middle of the horizontal connecting rod, and a reinforcing connecting rod is provided in the middle of the inner spiral fan blade and connected to the stirring shaft.

[0017] The present invention is further configured such that: a feed inlet is provided at the top of the mixing tank, a discharge bin is provided at the bottom of the mixing tank, the discharge bin is configured as a conical structure, and a discharge outlet is provided at the bottom of the discharge bin.

[0018] The beneficial effects of this invention are:

[0019] The mixing tank is divided into two vortex flow fields by upper and lower stirring components. The upper vortex flow field is further separated and stirred by the rotation of radial and shear stirring components. The lower vortex flow field is further separated and stirred by the rotation of outer and inner spiral fan blades. This improves the stirring capacity without increasing the rotation speed, and reduces the energy consumption required for stirring and the wear of the device itself. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the vortex stratification stirring device of the present invention.

[0022] Figure 2 for Figure 1 The front view shown.

[0023] Figure 3 For along Figure 2 A cross-sectional view showing section line AA.

[0024] Figure 4 for Figure 3 The diagram shows the internal structure of the mixing tank.

[0025] Figure 5 for Figure 4 The front view shown.

[0026] Figure 6 for Figure 5The diagram shows the structure of the upper stirring assembly.

[0027] Figure 7 for Figure 5 The diagram shows the structure of the lower stirring assembly.

[0028] Figure 8 for Figure 5 The diagram shows a structural schematic of another embodiment of the present invention.

[0029] Figure 9 for Figure 8 The diagram shows the internal structure of the speed control component.

[0030] Explanation of reference numerals in the attached drawings: 1. Support assembly; 11. Connecting frame; 12. Support leg; 13. Fastening base;

[0031] 2. Mixing tank; 21. Tank body; 22. Mixing chamber; 23. Top cover; 24. Inlet; 25. Discharge hopper; 26. Outlet;

[0032] 3. Drive assembly; 31. Stirring motor; 32. Mounting bracket; 33. Stirring shaft; 34. Supporting brace; 35. Support base;

[0033] 4. Upper mixing assembly; 41. Radial mixing component; 411. First sleeve; 412. Second sleeve; 413. First structural frame; 414. Second structural frame; 415. Side mixing blade; 42. Shearing mixing component; 421. Upper rotating shaft; 422. Lower rotating shaft; 423. Connecting rod; 424. Radial fan blade; 425. First inclined fan blade; 426. Second inclined fan blade;

[0034] 5. Lower layer mixing assembly; 51. Connecting sleeve; 52. Horizontal connecting rod; 53. Reinforcing connecting rod; 54. Outer spiral fan blade; 55. Inner spiral fan blade;

[0035] 6. Speed ​​control assembly; 61. Outer protective cover; 62. Inner protective cover; 63. Input shaft; 64. Input bevel gear; 65. Transmission pinion; 66. Limit rod; 67. Output bevel gear; 68. Output shaft. Detailed Implementation

[0036] To make the technical problem to be solved, the technical solution, and the beneficial effects of this invention clearer, the invention will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the invention, and therefore only shows the components relevant to the invention. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] Example 1, please refer to Figure 1-7 A vortex stratified mixing device includes a mixing tank 2, an upper mixing component 4 and a lower mixing component 5 disposed inside the mixing tank 2, and a drive component 3 for driving the upper mixing component 4 and the lower mixing component 5. The drive component 3 is disposed through the mixing tank 2 and extends into the interior of the mixing tank 2, and is installed above the upper mixing component 4 and positioned above the lower mixing component 5. During the rotation of the upper mixing component 4 and the lower mixing component 5 by the drive component 3, the fluid material inside the mixing tank 2 can be stratified and mixed, resulting in two different vortex flow fields in the upper and lower layers of the fluid material, thereby effectively improving the mixing capacity, reducing the energy consumption required for mixing, and reducing the wear of the device itself.

[0038] Please refer to Figure 1-3 The mixing tank 2 includes a cylindrical tank body 21, with an internal mixing chamber 22 for storing fluid substances. A top cover 23 is provided on the top of the tank body 21 to seal the top of the mixing tank 2. An inlet 24 is located on the top of the mixing tank 2, situated on one side of the top cover 23. When the inlet 24 is open, fluid substances can be added into the mixing chamber 22. During mixing, the inlet 24 remains closed. A discharge hopper 25 is located at the bottom of the mixing tank 2. The discharge hopper 25 has a conical structure and communicates with the mixing chamber 22. An outlet 26 is located at the bottom of the discharge hopper 25. After mixing is complete, the fluid substances in the mixing chamber 22 can be discharged through the discharge hopper 25 and out of the outlet 26.

[0039] Please refer to Figure 1-4 The drive assembly 3 includes a stirring motor 31 mounted on the top of the mixing tank 2 and a stirring shaft 33 extending through the interior of the mixing tank 2. A mounting bracket 32 ​​is provided at the bottom of the stirring motor 31, and the mounting bracket 32 ​​is fixedly mounted on the top of the mixing tank 2. Specifically, the mounting bracket 32 ​​is fixedly mounted on the top of the top cover 23, and the stirring motor 31 is fixedly mounted on the mounting bracket 32. The output end of the stirring motor 31 is connected to the stirring shaft 33, which extends downward into the mixing chamber 22 and is located at the central axis of the mixing chamber 22. A support base 35 is provided at the bottom of the stirring shaft 33, and multiple supporting inclined rods 34 are symmetrically arranged at the bottom of the support base 35. Each supporting inclined rod 34 is fixedly connected to the inner wall of the mixing tank 2. The stirring shaft 33 is rotatably mounted on the support base 35, ensuring that the stirring shaft 33 can rotate normally. The support base 35 and the supporting inclined rods 34 also provide support for the stirring shaft 33, and simultaneously create a certain space at the bottom of the mixing chamber 22, facilitating the formation of a vortex flow field in the fluid.

[0040] Please refer to Figure 1-3To ensure the stability of the mixing tank 2, a support assembly 1 is provided at the bottom of the mixing tank 2. The support assembly 1 includes a connecting frame 11 surrounding the bottom of the mixing tank 2. The connecting frame 11 is a rectangular frame structure, and its inner wall is in contact with the outer wall of the mixing tank 2. Fastening seats 13 are provided at the positions where the connecting frame 11 is in contact with the outer wall of the mixing tank 2. The fastening seats 13 are fixedly connected to the outer wall of the mixing tank 2, thereby strengthening the connection between the mixing tank 2 and the connecting frame 11. Support legs 12 are provided at the bottom of the connecting frame 11, so that the mixing device can be placed stably. In some other embodiments, to facilitate the movement of the mixing device, the support legs 12 can be replaced with casters. This application does not make specific limitations here.

[0041] Please refer to Figure 3-6 The upper stirring assembly 4 includes two radial stirring elements 41 and a shearing stirring element 42 rotatably disposed between the radial stirring elements 41. Each radial stirring element 41 includes a first structural frame 413 and a second structural frame 414 fixedly mounted on a stirring shaft 33. The first and second structural frames 413 and 414 are arranged horizontally, with the first structural frame 413 positioned above the second structural frame 414. A first sleeve 411 is provided in the middle of the first structural frame 413, and the first sleeve 411 is fixedly sleeved on the stirring shaft 33, achieving a fixed connection with the stirring shaft 33. A second sleeve 412 is provided in the middle of the second structural frame 414, and the second sleeve 412 is fixedly sleeved on the stirring shaft 33, achieving a fixed connection with the stirring shaft 33. Side stirring blades 415 are respectively provided on both sides of the first and second structural frames 413 and 414, wherein the side stirring blades 415 on the first structural frame 413 face the second structural frame 414, and the side stirring blades 415 on the second structural frame 414 face the first structural frame 413. That is, when the first structural frame 413 and the two side stirring blades 415 arranged downward at both ends and the second structural frame 414 and the two side stirring blades 415 arranged upward at both ends rotate with the stirring shaft 33, they can form a cylindrical space structure during their rotation. The fluid material inside this cylindrical space structure forms a vortex flow field that is relatively separated from the inside of the stirring chamber 22 under the action of the radial stirring element 41.

[0042] Please refer to Figure 3-6Two shearing and mixing components 42 are symmetrically installed about the mixing shaft 33. Each shearing and mixing component 42 includes a radial fan blade 424 and a first inclined fan blade 425 and a second inclined fan blade 426 connected to both ends of the radial fan blade 424. The axis of the radial fan blade 424 is horizontal, and the two sides of the radial fan blade 424 extend outwards at an angle relative to its axis to form fan blades. That is, the radial fan blade 424 has a horizontal axis as a whole, with the two side fan blades gradually inclined outwards. The first inclined fan blade 425 is located above the radial fan blade 424, and the second inclined fan blade 426 is located below the radial fan blade 424. The axes of the first inclined fan blade 425 and the second inclined fan blade 426 are inclined relative to the vertical direction and are parallel to each other. The two sides of the first inclined fan blade 425 and the second inclined fan blade 426 extend outwards at an angle relative to their axes to form fan blades. Specifically, the first inclined fan blade 425 is a fan blade structure in which its axis forms an inclined angle with the axis of the radial fan blade 424, and the fan blades on both sides gradually tilt outward relative to their axis. The second inclined fan blade 426 is a fan blade structure in which its axis forms an inclined angle with the axis of the radial fan blade 424, and the fan blades on both sides gradually tilt outward relative to their axis. Preferably, the inclination angle between the first inclined fan blade 425 and the radial fan blade 424, and the inclination angle between the second inclined fan blade 426 and the radial fan blade 424, can be between 30° and 45°. In some other embodiments, the inclination angle can also be adjusted to other corresponding angles depending on the fluid substance being stirred, and this application does not make specific limitations here. The first inclined fan blade 425 and the second inclined fan blade 426 are respectively provided with an upper rotating shaft 421 and a lower rotating shaft 422 at both ends, and the upper rotating shaft 421 and the lower rotating shaft 422 are respectively rotatably mounted on the radial stirring member 41. Specifically, the upper rotating shaft 421 and the lower rotating shaft 422 are rotatably mounted on the first structural frame 413 and the second structural frame 414, respectively. During the rotation of the first structural frame 413 and the second structural frame 414, the centrifugal force generated can drive the two shearing and stirring components 42 to rotate. On the one hand, the two symmetrically arranged shearing and stirring components 42 further separate the vortex flow field inside the radial stirring component 41. On the other hand, during the rotation of the shearing and stirring components 42, the radial fan blade 424, the first inclined fan blade 425 and the second inclined fan blade 426 rotate at different angles, generating shearing forces in different directions, which stir the fluid material therein, thereby greatly improving the uniformity of stirring in the vortex flow field.

[0043] Please refer to Figure 3-5 and Figure 7The lower stirring assembly 5 includes an outer spiral fan blade 54 and an inner spiral fan blade 55 arranged coaxially, and a connecting sleeve 51 mounted on the stirring shaft 33. Two connecting sleeves 51 are arranged along the stirring shaft 33, and horizontal connecting rods 52 are symmetrically connected to the connecting sleeves 51. The two ends of the outer spiral fan blade 54 are connected to the horizontal connecting rods 52, that is, the upper and lower ends of the outer spiral fan blade 54 are fixedly connected to the horizontal connecting rods 52 on the upper and lower connecting sleeves 51 respectively, so that the outer spiral fan blade 54 can rotate synchronously with the stirring shaft 33. The outer spiral fan blade 54 spirally wraps around the outer spiral fan blade 55. The end of the inner spiral fan blade 55 is fixedly connected to the middle of the horizontal connecting rod 52, that is, the upper and lower ends of the inner spiral fan blade 55 are fixedly connected to the middle of the horizontal connecting rods 52 on the upper and lower connecting sleeves 51 respectively, and the spiral angles of the inner spiral fan blade 55 and the outer spiral fan blade 54 are the same. A reinforcing connecting rod 53 is provided in the middle of the inner spiral fan blade 55 and is connected to the stirring shaft 33. The reinforcing connecting rod 53 is arranged in the horizontal direction, thereby improving the connection strength of the inner spiral fan blade 55.

[0044] Specifically, the radial agitator 41 and the shear agitator 42 divide the upper part of the mixing chamber 22 into relatively independent vortex flow fields, while the outer spiral fan blade 54 and the inner spiral fan blade 55 divide the lower part of the mixing chamber 22 into relatively independent vortex flow fields, thus creating stratified vortex flow fields in the upper and lower parts of the mixing chamber 22. That is, the radial agitator 41, the shear agitator 42, and the outer spiral fan blade 54 and the inner spiral fan blade 55 divide the interior of the mixing tank 2 into different vortex flow fields in upper and lower layers.

[0045] During the rotation of the stirring shaft 33 driven by the stirring motor 31, without stratifying the stirring chamber 22, the fluid flows radially perpendicular to the stirring shaft 33. When this fluid encounters the wall of the tank 21, it is divided into two streams, one flowing upwards and the other downwards. Both streams then return to the ends of the stirring blades but do not pass through them. This flow pattern creates two circulating flow regions within the stirring container, located above and below the stirring shaft, thus generating a radial vortex flow field. Based on this, the stirring chamber 22 is stratified into upper and lower layers by the upper stirring assembly 4 and the lower stirring assembly 5, forming two relatively independent radial vortex flow fields.

[0046] Furthermore, during the rotation of the radial agitator 41 and its two side agitator blades 415, the vortex flow direction is parallel to the agitator shaft 33, and the blades push the fluid material downwards. When this fluid touches the bottom of the tank 21, it tumbles upwards, thus forming a vertically circulating flow path, i.e., generating an axial vortex flow field. Meanwhile, during the rotation of the shear agitator 42 and the lower agitator assembly 5, the fluid flow direction is parallel to the agitator shaft 33, mainly driven by the blades, causing the fluid to flow towards the bottom of the tank 21. Once the fluid touches the bottom of the tank 21, it rapidly tumbles upwards, thus forming a closed, vertically circulating flow path, i.e., generating a tangential vortex flow field.

[0047] During the mixing process, the stirring motor 31 drives the stirring shaft 33 to rotate. Simultaneously, the stirring shaft 33 rotates, driving the radial stirring component 41 and the lower stirring assembly 5 to rotate as well. The mixing chamber 22 is divided into upper and lower layers by the separation of the stirring assembly 4 and the lower stirring assembly 5, forming two relatively independent radial vortex flow fields. For the upper radial vortex flow field, as the radial stirring component 41 rotates, the side stirring blades 415 on both sides rotate as well. Within the cylindrical space structure formed by the rotation of the radial stirring component 41 and the side stirring blades 415, a further relatively separated axial vortex flow field is created. Within the axial vortex flow field inside the radial stirring component 41, the rotation of the radial stirring component 41 further drives the shear stirring component 42 to rotate, thereby dividing the axial vortex flow field into two tangential vortex flow fields. These vortex flow fields are generated by the radial fan blade 424, the first inclined fan blade 425, and the second inclined fan blade 426 rotating at different angles, generating shear forces in different directions, further enhancing the uniformity of the vortex flow field. As for the lower radial vortex flow field, as the lower stirring assembly 5 rotates, the outer spiral fan blade 54 and the inner spiral fan blade 55 form tangential vortex flow fields inside the lower radial vortex flow field during rotation, thereby enhancing the stirring of the lower fluid material.

[0048] The mixing tank 2 is divided into two vortex flow fields by the upper mixing assembly 4 and the lower mixing assembly 5. The upper vortex flow field is further separated and stirred by the rotation of the radial mixing element 41 and the shear mixing element 42. The lower vortex flow field is further separated and stirred by the rotation of the outer spiral fan blade 54 and the inner spiral fan blade 55. This improves the stirring capacity without increasing the rotation speed, and reduces the energy consumption required for stirring and the wear of the device itself.

[0049] Example 2, please refer to Figure 8To further adjust the rotational speed between the upper stirring assembly 4 and the lower stirring assembly 5, so that the upper stirring assembly 4 and the lower stirring assembly 5 can continuously stir according to the different flow velocities of the eddy current field, and to further reduce the energy consumption required for stirring and the wear of the device itself, the stirring shaft 33 can be divided into two interconnected parts, the upper part connected to the upper stirring assembly 4 and the lower part connected to the lower stirring assembly 5. A speed regulating assembly 6 is added between the two stirring shafts 33 to create a difference in the rotational speed of the two stirring shafts 33.

[0050] Please refer to Figure 8-9The speed regulating component 6 includes an input shaft 63 and an output shaft 64, which are respectively connected to the upper and lower stirring shafts 33. One end of the input shaft 63 is fixedly connected to the upper stirring shaft 33, and the other end is connected to an input bevel gear 64. One end of the output shaft 64 is fixedly connected to the lower stirring shaft 33, and the other end is connected to an output bevel gear 67. An inner protective cover 62 is fitted onto the ends of the input bevel gear 64 and the output bevel gear 67, with the input bevel gear 64 rotatably fitted above the inner protective cover 62 and the output bevel gear 67 rotatably fitted below the inner protective cover 62. A plurality of limiting rods 66 are symmetrically arranged on the inner wall of the inner protective cover 62. The limiting rods 66 are arranged horizontally and fixedly connected to the middle of the inner protective cover 62. A transmission pinion 65 is rotatably mounted on the side of each limiting rod 66 near the center of the inner protective cover 62, and the circumferential surface of the transmission pinion 65 is arranged vertically. A transmission pinion 65 is positioned between the input bevel gear 64 and the output bevel gear 67, meshing with both. It should be noted that in this embodiment, the pitch circle radius and number of teeth of the input bevel gear 64 are smaller than those of the output bevel gear 67. During the rotation of the upper stirring shaft 33, the input bevel gear 64 is synchronously driven to rotate. During the rotation of the input bevel gear 64, the output bevel gear 67 is synchronously driven to rotate through the meshing of the transmission pinion 65. During this process, the rotational speed of the output bevel gear 67 is reduced, ultimately reducing the rotational speed of the lower stirring shaft 33 synchronously through the output bevel gear 67, thus achieving the adjustment of different rotational speeds between the upper stirring component 4 and the lower stirring component 5. Specifically, the pitch circle radius and number of teeth of the input bevel gear 64 and the output bevel gear 67 can be appropriately increased or decreased according to actual needs; this application does not impose specific limitations here. In some other embodiments, the pitch circle radius and the number of teeth of the input bevel gear 64 can be set to be greater than the pitch circle radius and the number of teeth of the output bevel gear 67, thereby making the rotational speed of the lower stirring component 5 greater than the rotational speed of the upper stirring component 4. This application does not make specific limitations here. In addition, in order to prevent fluid substances from entering the interior of the inner protective cover 62 during the stirring process and affecting the normal operation of the speed regulating component 6, an outer protective cover 61 is added outside the inner protective cover 62. The outer protective cover 61 is set as a hollow cylindrical structure, and the input shaft 63 and the output shaft 64 are set through the outer protective cover 61. In order to ensure the rotation of the speed regulating component 6, multiple connecting rods are provided on the outer wall of the outer protective cover 61 and fixedly connected to the inner wall of the tank 21. The outer protective cover 61 is installed and fixed through the connection of the connecting rods, and at the same time, channels for fluid substances to flow are left between the connecting rods to ensure that the stirring can be carried out normally. The inner protective cover 62 is fixedly connected to the inner wall of the outer protective cover 61 in the middle. The input shaft 63 is rotatably positioned above the outer protective cover 61, and the output shaft 64 is rotatably positioned below the outer protective cover 61, ensuring the normal rotation of the input shaft 63 and the output shaft 64.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0053] The above description, based on the preferred embodiments of the present invention, provides guidance. Those skilled in the art can make various changes and modifications without departing from the scope of the invention. The technical scope of this invention is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A vortex stratified stirring device, characterized in that: The system includes a mixing tank (2), an upper mixing assembly (4) and a lower mixing assembly (5) disposed inside the mixing tank (2), and a drive assembly (3) for driving the upper mixing assembly (4) and the lower mixing assembly (5). The drive assembly (3) includes a stirring motor (31) mounted on the top of the mixing tank (2) and a stirring shaft (33) extending through into the interior of the mixing tank (2). The upper mixing assembly (4) is disposed above the lower mixing assembly (5). The upper mixing assembly (4) includes two radial stirring elements (41) and a shearing stirring element (42) rotatably disposed between the radial stirring elements (41). The lower mixing assembly (5) includes an outer spiral fan blade (54) and an inner spiral fan blade (55) coaxially disposed. The radial stirring elements (41), the shearing stirring element (42), the outer spiral fan blade (54), and the inner spiral fan blade (55) divide the interior of the mixing tank (2) into different vortex flow fields in upper and lower layers.

2. The vortex stratification stirring device according to claim 1, characterized in that: The radial stirring component (41) includes a first structural frame (413) and a second structural frame (414) fixedly mounted on the stirring shaft (33). The first structural frame (413) is located above the second structural frame (414), and side stirring blades (415) are respectively provided on both sides of the first structural frame (413) and the second structural frame (414).

3. The vortex stratification stirring device according to claim 2, characterized in that: The side stirring blades (415) on the first structural frame (413) are arranged toward the second structural frame (414), and the side stirring blades (415) on the second structural frame (414) are arranged toward the first structural frame (413).

4. The vortex stratification stirring device according to claim 1, characterized in that: The shearing and stirring component (42) includes a radial fan blade (424) and a first inclined fan blade (425) and a second inclined fan blade (426) respectively connected to both ends of the radial fan blade (424). The first inclined fan blade (425) is disposed above the radial fan blade (424), and the second inclined fan blade (426) is disposed below the radial fan blade (424).

5. The vortex stratification stirring device according to claim 4, characterized in that: The radial fan blade (424) is arranged along the horizontal direction, and the two sides of the radial fan blade (424) extend outward at an angle relative to its axis to form fan blades.

6. The vortex stratification stirring device according to claim 5, characterized in that: The first inclined fan blade (425) and the second inclined fan blade (426) are inclined relative to the vertical direction and the axes of the first inclined fan blade (425) and the second inclined fan blade (426) are parallel to each other. The first inclined fan blade (425) and the second inclined fan blade (426) extend outward from their axes to form fan blades.

7. The vortex stratification stirring device according to claim 6, characterized in that: The first inclined fan blade (425) and the second inclined fan blade (426) are respectively provided with an upper rotating shaft (421) and a lower rotating shaft (422) at both ends, and the upper rotating shaft (421) and the lower rotating shaft (422) are respectively rotatably mounted on the radial stirring member (41).

8. The vortex stratification stirring device according to claim 1, characterized in that: The lower stirring assembly (5) also includes a connecting sleeve (51) installed on the stirring shaft (33), and horizontal connecting rods (52) are symmetrically connected on the connecting sleeve (51). The two ends of the outer spiral fan blade (54) are connected to the horizontal connecting rods (52).

9. A vortex stratified stirring device according to claim 8, characterized in that: The outer spiral fan blade (54) spirals around the outside of the inner spiral fan blade (55). The end of the inner spiral fan blade (55) is fixedly connected to the middle of the horizontal connecting rod (52). A reinforcing connecting rod (53) is provided in the middle of the inner spiral fan blade (55) and connected to the stirring shaft (33).

10. The vortex stratification stirring device according to claim 1, characterized in that: The mixing tank (2) has a feed inlet (24) at the top and a discharge hopper (25) at the bottom. The discharge hopper (25) is a conical structure and has a discharge outlet (26) at the bottom.

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