Stirring reactor for strengthening rotational flow mixing process of high-viscosity system

Abstract

The invention discloses a stirring reactor for strengthening the rotational flow mixing process of a high-viscosity system. The stirring reactor comprises a kettle body, a supporting frame and a single-shaft combined stirring mechanism. The kettle body is of a hollow revolving body structure, a feeding hole and a manhole are formed in the top of the kettle body, a discharging hole is formed in the center of the bottom of the kettle body, and a supporting frame is mounted above the discharging hole. A single-shaft combined stirring mechanism is arranged in the kettle body and comprises a stirring shaft of which one end is fixed on the support frame and the other end extends out of the top of the kettle body, a screw type paddle positioned at the middle upper part of the stirring shaft and a curved surface anchor frame type paddle positioned at the bottom of the stirring shaft. The curved surface anchor frame type paddle comprises a blade I and a blade II. Efficient mixing of the inner layer, the middle layer and the outer layer can be achieved through the screw type paddles, the blades I and the blades II, the heat exchange and mass transfer efficiency between materials is improved, and therefore the mixing reaction speed and uniformity are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical reaction engineering, and specifically to a stirring reactor for intensifying the swirling mixing process of a high-viscosity system. Background Art

[0002] The mixing and stirring processes of high-viscosity fluids usually face many challenges. First, the poor fluidity of high-viscosity fluids results in the common problem of uneven mixing. In traditional stirring equipment, due to the excessively high viscosity, the shear force between fluids is weak, which easily causes the reactants to stratify in the reaction kettle, leading to incomplete mixing reactions or slow reaction rates, thereby affecting the quality and yield of the final product. Second, traditional stirring devices, especially screw-type or blade-type stirrers, usually have the problem of unsatisfactory local stirring effects. Since the design of the stirring paddles fails to fully consider the flow requirements in different regions, materials often accumulate at the bottom or wall of the reaction kettle, resulting in low heat transfer and mass transfer efficiencies of the reaction materials, and even forming "dead zones" that cannot be effectively mixed, causing waste of energy and reactants.

[0003] In addition, when dealing with high-viscosity fluids with different viscosity levels, the design of traditional stirring equipment also fails to fully achieve effective coupling between fluid layers, and the mixing between the inner-layer fluid and the outer-layer fluid is often not thorough enough, resulting in low and uneven mixing reaction rates.

[0004] In the prior art, some stirrers for high-viscosity fluids attempt to solve the problem of uneven mixing by increasing the rotation speed of the stirring paddle or changing its shape. However, this method often leads to excessive mechanical energy consumption, and at the same time, it cannot effectively solve the mixing problems in the bottom and wall regions of the reaction kettle, and it is easy to exacerbate equipment wear and energy consumption increase, with low economic benefits. Summary of the Invention

[0005] The purpose of the present invention is to provide a stirring reactor for intensifying the swirling mixing process of a high-viscosity system, which includes a kettle body, a support frame, and a single-shaft combined stirring mechanism.

[0006] The kettle body is a hollow rotary body structure, with a feed inlet and a manhole opened at the top, and a discharge port opened at the center of the bottom.

[0007] A support frame is installed inside the kettle body and above the discharge port.

[0008] A single-shaft combined stirring mechanism is disposed inside the kettle body.

[0009] The single-shaft combined stirring mechanism includes a stirring shaft, a screw-type paddle, and a new curved surface anchor frame-type paddle.

[0010] One end of the stirring shaft is fixed on the support frame, and the other end extends out of the top of the kettle body.

[0011] The screw-type blade and the new curved surface anchor frame-type blade are both fixed on the stirring shaft, and are respectively located in the upper middle part of the shaft body of the stirring shaft and the bottom of the shaft body.

[0012] The new curved surface anchor frame-type blade includes blade I and blade II.

[0013] Blade I and blade II are twisted arc-shaped blades, and the bottom of the arc segment is fixed on the stirring shaft.

[0014] Furthermore, the radius of the screw-type blade is smaller than the centrifugal distance of blade II.

[0015] On the same horizontal plane, the distance from blade I to the central axis is greater than the distance from blade II to the central axis. The horizontal plane is perpendicular to the setting direction of the stirring shaft.

[0016] Furthermore, the outer contour of blade I includes outer arc surface segment I and outer arc surface segment II that are sequentially joined. One end of outer arc surface segment I away from outer arc surface segment II is fixed on the stirring shaft.

[0017] The outer contour of blade II includes outer arc surface segment III and outer arc surface segment IV that are sequentially joined. One end of outer arc surface segment III away from outer arc surface segment IV is fixed on the stirring shaft.

[0018] Outer arc surface segment I and outer arc surface segment III are arc segments that extend downward from the bottom of the stirring shaft, then extend upward, and the inner side of the arc surface faces the top of the kettle body.

[0019] Outer arc surface segment II and outer arc surface segment IV are spiral arc segments, and the inner side of the arc surface faces the stirring shaft.

[0020] Furthermore, on the same horizontal plane, the distance from outer arc surface segment I to the central axis is greater than the distance from outer arc surface segment III to the central axis. The distance from outer arc surface segment II to the central axis is greater than the distance from outer arc surface segment IV to the central axis.

[0021] The horizontal plane is perpendicular to the setting direction of the stirring shaft.

[0022] Furthermore, a cross beam connected to the stirring shaft is provided in the middle of blade I and blade II.

[0023] Furthermore, the inner arc segment connecting blade I and blade II to the cross beam is denoted as inner arc segment A, and the setting direction of the cross beam is tangent to inner arc segment A.

[0024] The technical effect of the present invention is beyond doubt, and the beneficial effects of the present invention are as follows:

[0025] 1. By controlling the synergistic effect among three types of blades (screw blades, Blade I, and Blade II), the present invention significantly enhances the macroscopic tumbling effect of the internal fluid, causing the material to form a more obvious swirling flow within the reactor. The swirling flow not only promotes the intense agitation of the material but also enhances the heat exchange and mass transfer efficiency between the materials, thereby effectively increasing the rate and uniformity of the mixing reaction. In addition, reasonable curved surface design and adjustment can also reduce the energy consumption during the stirring process, making the mixing reaction process under high-viscosity systems more efficient and energy-saving.

[0026] 2. The stirring reactor of the present invention not only improves the mixing efficiency during the mixing of high-viscosity materials through the innovative stirring blade design but also can effectively reduce the instability of the reaction process caused by fluid non-uniformity. Through this technical solution, the reactor can maintain an efficient and stable mixing state under different reaction conditions, improving the speed of the mixing reaction and the consistency of the reaction products, and having significant economic benefits and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of a stirring reactor for enhancing the swirling mixing process in a high-viscosity system according to the present invention.

[0028] Figure 2 is a top view inside the stirring reactor for enhancing the swirling mixing process in a high-viscosity system according to the present invention.

[0029] Figure 3 is a schematic diagram of a single-axis combination mechanism for enhancing the mixing process in a high-viscosity system according to the present invention.

[0030] Figure 4 is a schematic diagram of the blade of the stirring reactor for enhancing the mixing process in a high-viscosity system according to the present invention.

[0031] In the figure: 1 - feed inlet; 2 - manhole; 3 - stirring shaft; 4 - kettle body; 5 - screw blade; 6 - new curved surface anchor frame blade; 7 - support frame; 8 - discharge port; 9 - Blade I; 901 - outer arc surface section I; 902 - outer arc surface section II; 10 - Blade II; 1001 - outer arc surface section III; 1002 - outer arc surface section IV; 11 - cross beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention will be further described below in conjunction with embodiments, but it should not be understood that the above-mentioned subject scope of the present invention is limited to the following embodiments only. Without departing from the above-mentioned technical idea of the present invention, various substitutions and modifications made according to ordinary technical knowledge and customary means in the art should all be included within the protection scope of the present invention.

[0033] Example 1:

[0034] SeeFigures 1 to 3 , a stirring reactor for strengthening the swirling mixing process of a high-viscosity system, comprising a kettle body 4, a support frame 7 and a single-shaft combined stirring mechanism.

[0035] The kettle body 4 is a rotating body structure with a hollow interior, provided with a feed inlet 1 and a manhole 2 at the top, and a discharge port 8 at the center of the bottom.

[0036] A support frame 7 is installed inside the kettle body 4, above the discharge port 8.

[0037] The kettle body 4 is internally provided with a single-shaft combined stirring mechanism.

[0038] The single-shaft combined stirring mechanism includes a stirring shaft 3, a screw blade 5 and a new curved surface anchor frame blade 6.

[0039] One end of the stirring shaft 3 is fixed on the support frame 7, and the other end extends out of the top of the kettle body 4.

[0040] The screw blade 5 and the new curved surface anchor frame blade 6 are both fixed on the stirring shaft 3, located in the upper middle part and the bottom of the shaft body of the stirring shaft 3 respectively.

[0041] The new curved surface anchor frame blade 6 includes a blade I 9 and a blade II 10.

[0042] The blade I 9 and the blade II 10 are twisted arc-shaped blades, and the bottom of the arc segment is fixed on the stirring shaft 3.

[0043] Example 2:

[0044] The main structure of this example is the same as that of Example 1. Further, see Figure 2 , the radius of the screw blade 5 is smaller than the centrifugal distance of the blade II 10.

[0045] On the same horizontal plane, the distance of the blade I 9 from the central axis is greater than the distance of the blade II 10 from the central axis. The horizontal plane is perpendicular to the setting direction of the stirring shaft 3.

[0046] Example 3:

[0047] The main structure of this example is the same as any one of Examples 1 to 2. Further, see Figure 4 , the outer contour of the blade I 9 includes a sequentially joined outer arc surface segment I 901 and an outer arc surface segment II 902. One end of the outer arc surface segment I 901 away from the outer arc surface segment II 902 is fixed on the stirring shaft 3.

[0048] The outer contour of the blade II 10 includes a sequentially joined outer arc surface segment III 1001 and an outer arc surface segment IV 1002. One end of the outer arc surface segment III 1001 away from the outer arc surface segment IV 1002 is fixed on the stirring shaft 3.

[0049] The outer arc surface section I901 and the outer arc surface section III1001 are arc sections that extend downward from the bottom of the stirring shaft 3, then extend upward, and the inner arc surface faces the top of the kettle body 4.

[0050] The outer arc surface section II902 and the outer arc surface section IV1002 are spiral arc sections, and the inner arc surface faces the stirring shaft 3.

[0051] Example 4:

[0052] The main structure of this example is the same as that of Example 3. Further, on the same horizontal plane, the distance from the outer arc surface section I901 to the central axis is greater than the distance from the outer arc surface section III1001 to the central axis. The distance from the outer arc surface section II902 to the central axis is greater than the distance from the outer arc surface section IV1002 to the central axis.

[0053] The horizontal plane is perpendicular to the setting direction of the stirring shaft 3.

[0054] Example 5:

[0055] The main structure of this example is the same as any one of Examples 1 to 4. Further, a cross beam 11 connected to the stirring shaft 3 is provided in the middle of the blade I9 and the blade II10.

[0056] Example 6:

[0057] The main structure of this example is the same as that of Example 5. Further, the inner arc section where the blade I9 and the blade II10 are connected to the cross beam 11 is denoted as the inner arc section A, and the setting direction of the cross beam 11 is tangent to the inner arc section A.

[0058] Example 7:

[0059] The main structure of this example is the same as any one of Examples 1 to 6. Further, a stirring reactor for enhancing the swirling mixing process of a high-viscosity system includes key components such as a reaction kettle body, an internal stirring shaft, and stirring paddles.

[0060] There is a discharge port 8 and a support frame 7 at the bottom of the kettle body 4; a feed port 1, a manhole 2, etc. are provided at the top.

[0061] The high-viscosity system mixing reaction kettle is internally provided with a single-shaft combined stirring mechanism.

[0062] The single-shaft combined stirring mechanism is mainly composed of a screw-type paddle 5 and a new type of curved surface anchor frame paddle 6 at the bottom. Among them, the screw-type paddle 5 is located in the upper middle part of the stirring shaft and has a smaller diameter, mainly for mixing the inner layer of fluid. The new type of curved surface anchor frame paddle 6 is located at the bottom of the shaft, preventing the accumulation of materials at the bottom and the wall surface, and playing a role in strengthening the mixing of the outer layer of fluid.

[0063] The described novel curved surface anchor frame type stirring paddle 6 is composed of two parts: blade I and blade II.

[0064] Blade I 9 has a relatively large lateral distance, is close to the wall surface, and its action range is mainly the external area.

[0065] The lateral distance of blade II 10 is between that of the screw type paddle 5 and blade II 9, and can be flexibly changed as needed. Its main function is in the middle area.

[0066] The described blade I 9 and blade II 10 are both subjected to special curved surface treatment. Both blades start from the bottom of the stirring shaft 3, first extend downward along a smooth and continuous curve to form a transitional arc, and then wind upward in a spiral manner. The overall structure is curved and has a smooth transition.

[0067] The cross beams in the middle of the described blade I 9 and blade II 10 extend outward from the stirring shaft 3 and are tangent to the outer blade I 9 and blade II 10 at a certain inclination angle.

[0068] The described single - shaft combined stirring mechanism is externally connected with a control system, which can flexibly adjust the spiral bending direction and lateral distance of blade I 9 and blade II 10 of the novel curved surface anchor frame type paddle 6, as well as the spiral direction and pitch of the screw type paddle 5 according to needs.

[0069] Example 8:

[0070] The main structure of this embodiment is the same as any one of Embodiments 1 - 7. Further, in the specific use process of the present invention, after the material enters the reactor from the feed port 1, a preliminary trial rotation operation is first carried out. The trial rotation stage is an important link in the whole reaction process. The operator monitors the mixing situation of the highly viscous material inside the reactor in real time through the observation manhole 2 of the reactor. According to the preliminary stirring effect and the flow state of the material, the operator can evaluate the mixing effect and finely adjust the design parameters of the stirring blades in combination with the control system to ensure that the stirring process can flexibly meet more complex reaction requirements.

[0071] Specifically, the operation process of the system has great flexibility and can adjust the combination mode of the paddles according to the different viscosities of the materials, the complexity of the mixing reaction, and the requirements of the actual reaction environment.

[0072] When the viscosity of the material system is relatively low and the complexity of the mixing reaction is not high, usually no excessive adjustment is required. In this case, the blade I 9 of the novel curved surface anchor frame type blade 6 remains close to the wall of the reaction kettle, which can effectively scrape the wall and ensure that no material deposition occurs on the inner wall of the reaction kettle. At the same time, the blade I 9 can also promote the effective mixing of the external fluid and avoid the retention of the outer layer fluid. The blade II 10 is located between the screw type blade 5 and the blade I 9, playing its mixing role in the middle layer area, and can ensure the uniform stirring of the material in the middle layer. Combining with the action of the internal screw type blade 5, the mixing effect of the whole reactor is comprehensively improved, thus ensuring the efficient progress of the mixing reaction.

[0073] However, when the viscosity of the system is high and the mixing process is relatively complex, the operator can adjust it in a timely manner according to the reaction state to maximize the mixing efficiency. In this case, the control system can accurately adjust the parameters of the stirring blades according to the real-time data inside the reactor. For example, adjust the bending direction and angle of the blade I 9 and the blade II 10, optimize the curvature of the curved surface, and further finely adjust the spiral direction and pitch of the screw type blade 5, etc. These adjustments will help to break the uneven phenomenon of fluid stratification in the reactor, strengthen the mixing of materials, and avoid the formation of dead zones or areas with slow flow of high-viscosity materials in the reaction kettle.

[0074] By precisely controlling the synergistic effect among the three types of blades (screw type blade 5, blade I and blade II), the macroscopic tumbling effect of the internal fluid can be significantly improved, making the material form a more obvious swirling flow in the reactor. The swirling flow not only promotes the strong stirring of the material, but also enhances the heat exchange and mass transfer efficiency between the materials, thus effectively improving the rate and uniformity of the mixing reaction. In addition, the reasonable curved surface design and adjustment can also reduce the energy consumption during the stirring process, making the mixing reaction process under the high-viscosity system more efficient and energy-saving.

[0075] Example 9:

[0076] The main structure of this example is the same as any one of Examples 1-8. Further, the present invention provides a stirring reactor for strengthening the swirling mixing process of a high-viscosity system, aiming to adopt an innovative single-axis combined stirring mechanism design. Through the coordinated cooperation of the curved surface relationships among the blades, a more chaotic environment is provided for the mixing reaction process under the high-viscosity system, improving the mixing efficiency and ensuring the product quality. The technical solutions adopted by the present invention to solve its technical problems are as follows:

[0077] The present invention relates to a stirring reactor for enhancing the mixing process of high-viscosity systems. Especially during the mixing reaction process of high-viscosity materials, through a uniquely designed stirring device, the mixing efficiency of the materials is effectively improved, the stability and reaction rate of the reaction process are optimized, and the high quality and consistency of the product are ensured. The reactor mainly consists of key components such as a reaction kettle body, an internal stirring shaft, and stirring paddles. The bottom of the reaction kettle body is provided with a discharging port and a support frame, and the top is provided with interfaces such as a feeding port and a manhole to meet the requirements of material inlet and outlet, operation, and maintenance.

[0078] The reaction kettle of the present invention is internally provided with a single-shaft combined stirring mechanism, which is jointly composed of a screw-type paddle and a new-type curved surface anchor frame-type paddle. The screw-type paddle is located in the upper-middle part of the stirring shaft and has a smaller diameter, mainly acting on the mixing of the inner-layer fluid. Due to the structural design of the screw-type paddle, it can generate strong axial flow during rotation, driving the material to flip along the axial direction of the reaction kettle, promoting the uniform mixing of the inner-layer viscous material, and avoiding the phenomena of local accumulation of materials and uneven reaction in the high-viscosity system. The new-type curved surface anchor frame-type paddle is located at the bottom of the stirring shaft and has significant innovation in design. The unique design of this anchor frame-type paddle helps to prevent the accumulation of materials at the bottom and wall surfaces of the reaction kettle, and enhances the stirring and flow effect on the outer-layer fluid through close contact with the fluid.

[0079] The new-type curved surface anchor frame-type stirring paddle of the present invention is composed of two parts of blades, namely blade I and blade II. Blade I has a larger lateral distance and is closely attached to the wall surface of the reaction kettle, and can fully act on the outer-fluid region. Its structural design aims to provide strong tangential disturbance, ensuring the fluidity and mixing effect of the outer-layer fluid, thereby optimizing the overall process of the mixing reaction. Blade II is located between the screw-type paddle and blade I, and its lateral distance and action range can be flexibly adjusted according to actual needs, mainly acting on the fluid mixing in the middle region of the reaction kettle. Especially during the reaction process of high-viscosity materials, it ensures the full stirring of the middle-layer fluid and avoids the slow flow and uneven mixing of the middle-layer fluid.

[0080] The special curved surface design of blade I and blade II belonging to the present invention is one of the core innovations of the present invention. Starting from the bottom of the stirring shaft, the two blades first extend downward along a smooth continuous curve to form a transitional arc, and then gradually wind up in a spiral manner to form a unique spiral curved surface structure. This design can effectively reduce the friction and resistance between the fluid and the blade surface, thereby reducing energy consumption. This structure not only improves the disturbance effect on the fluid but also makes the fluid flow more uniformly in the reactor, effectively enhancing the mixing efficiency.

[0081] In the middle parts of the blade Ⅰ and blade Ⅱ of the present invention, the cross beam extends outward from the stirring shaft and is tangent to the outer blades at a certain inclination angle. This design not only enhances the contact between the blades and the fluid, but also increases the spiral flow path of the fluid, which helps the full mixing and transfer of the fluid, thereby further improving the fluidity and uniformity of the high-viscosity system during the reaction process.

[0082] The uniaxial combined stirring mechanism of the present invention is externally connected with a control system. To meet the operation requirements under different working conditions, this system can accurately regulate the spiral bending directions and lateral distances of the blade Ⅰ and blade Ⅱ of the novel curved surface anchor frame type paddle, as well as the spiral direction and pitch of the screw type paddle. With the help of intelligent regulation, the curved surface interaction relationship among the screw paddle blade and the anchor frame type paddle blade Ⅰ and blade Ⅱ is changed. At the macroscopic level, this association can effectively promote the internal material turning process, form a swirling flow, and significantly improve the mixing degree; at the microscopic level, it can effectively strengthen the internal heat transfer and mass transfer effects, and strongly promote the smooth progress of the mixing process.

[0083] Example 10:

[0084] The main structure of this example is the same as any one of Examples 1 - 9. Further, the present invention proposes a novel stirring reactor for strengthening the mixing reaction process of a high-viscosity system. By designing a uniaxial combined stirring mechanism with different action ranges and structural characteristics, the mixing effects of the inner, middle, and outer three levels can be effectively improved. Especially, the novel curved surface anchor frame type stirring paddle can effectively prevent material accumulation and strengthen the heat transfer and mass transfer effects by regulating the bending direction and lateral distance of the blades, thereby significantly improving the efficiency of the mixing reaction and the consistency of the product.

[0085] In addition, this reactor is also equipped with a flexible control system, which can adjust the structural parameters of the stirring paddle according to the actual needs of the reaction process, further improving the operation flexibility and reaction controllability, and solving a number of technical problems of traditional stirring devices.

[0086] The present invention shows significant superiority in the mixing reaction of the high-viscosity system, providing a more efficient, energy-saving and adjustable solution for the mixing and mixing reaction of high-viscosity fluid systems.

[0087] Example 11:

[0088] The main structure of this example is the same as any one of Examples 1 - 10. Further, to verify the advantages of the stirring reactor of the present invention, a comparative experiment is carried out by comparing it with three other common stirring devices with different structures.

[0089] I. Comparative reactors

[0090] 1. The outer anchor frame of Reactor 1 is axisymmetric about the central axis, in a U shape, and its height and blade width are the same as those of the blades 9 and 10 of the present invention.

[0091] 2. The distances of the outer anchor frames of Reactor 2 from the central axis are equal, and they are all close to the wall. However, the blades show the same inclination and bending states as those of the present invention, and their heights and blade widths are the same as those of the blades 9 and 10 of the present invention.

[0092] 3. The outer anchor frame on one side of Reactor 3 contracts inwards to the middle distance between the wall and the central axis, and the outer frame on the other side is close to the wall. The blades show the same inclination and bending as those of the present invention, but the blades are not twisted, and their heights and blade widths are the same as those of the blades 9 and 10 of the present invention.

[0093] II. Experimental Process

[0094] A 5% carboxymethyl cellulose sodium (CMC) solution was used as the mixed material. At room temperature of 25 °C and a stirring speed of 150 rpm, the acid-base neutralization tracer method was used to measure the mixing time.

[0095] III. Experimental Results

[0096] The results show that the secondary flow phenomena such as swirl and eddy current in the stirring reactor of the present invention are more intense. The mixing time is about 20% shorter than that of Reactor 1, about 15% shorter than that of Reactor 2, and about 12% shorter than that of Reactor 3.

Claims

1. A stirred reactor for enhancing the cyclonic mixing process of a high viscosity system, characterized in that: It comprises a kettle body (4), a support frame (7) and a single-axis combined stirring mechanism; The kettle body (4) is a hollow rotating body structure, with a feed inlet (1) and a manhole (2) on the top, and a discharge port (8) at the center of the bottom; A support frame (7) is installed inside the kettle body (4) and above the discharge port (8); The kettle body (4) is internally provided with a single-axis combined stirring mechanism; The single-shaft combined stirring mechanism comprises a stirring shaft (3), a screw-type blade (5) and a novel curved anchor-frame blade (6); One end of the stirring shaft (3) is fixed on the support frame (7), and the other end extends out of the top of the kettle body (4); The screw blade (5) and the novel curved anchor frame blade (6) are both fixed on the stirring shaft (3), and are respectively located at the upper middle part and the bottom of the shaft of the stirring shaft (3); The novel curved anchor frame type blade (6) comprises blade I (9) and blade II (10); The blades I (9) and II (10) are twisted arc-shaped blades, and the bottom of the arc segment is fixed on the stirring shaft (3).

2. A stirred reactor for enhancing the cyclonic mixing process of a high-viscosity system according to claim 1, characterized in that: The radius of the screw blade (5) is smaller than the centrifugal distance of the blade II (10). On the same horizontal plane, the distance between blade I (9) and the central axis is greater than the distance between blade II (10) and the central axis; the horizontal plane is perpendicular to the setting direction of the stirring shaft (3).

3. A stirred reactor for enhancing the cyclonic mixing process of a high viscosity system according to claim 1, characterized in that: The outer contour of the blade I (9) comprises an outer arc segment I (901) and an outer arc segment II (902) which are connected in sequence; an end of the outer arc segment I (901) away from the outer arc segment II (902) is fixed on the stirring shaft (3); The outer contour of the blade II (10) comprises an outer arc segment III (1001) and an outer arc segment IV (1002) which are connected in sequence; one end of the outer arc segment III (1001) away from the outer arc segment IV (1002) is fixed on the stirring shaft (3); The outer arc surface segment I (901) and the outer arc surface segment III (1001) are arc segments extending downward from the bottom of the stirring shaft (3) and then extending upward, with the inner side of the arc surface facing the top of the kettle body (4); The outer arc surface segment II (902) and the outer arc surface segment IV (102) are spiral arc segments, and the inner side of the arc surface faces the stirring shaft (3).

4. A stirred reactor for enhancing the cyclonic mixing process of a high-viscosity system according to claim 3, characterized in that: On the same horizontal plane, the distance between the outer arc surface segment I (901) and the central axis is greater than the distance between the outer arc surface segment III (1001) and the central axis; the distance between the outer arc surface segment II (902) and the central axis is greater than the distance between the outer arc surface segment IV (1002) and the central axis. The horizontal plane is perpendicular to the setting direction of the stirring shaft (3).

5. The stirred reactor for enhancing the cyclonic mixing process of a high-viscosity system according to claim 1, characterized in that: A crossbeam (11) connected to the stirring shaft (3) is provided in the middle of the blades I (9) and the blades II (10).

6. A stirred reactor for enhancing the cyclonic mixing process of a high-viscosity system according to claim 5, characterized in that: The inner arc segment connecting the blade I (9), the blade II (10) and the cross beam (11) is recorded as the inner arc segment A, and the arrangement direction of the cross beam (11) is tangent to the inner arc segment A.

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