stirring disperser

Abstract

The application provides a stirring and dispersing machine, and relates to the technical field of stirring equipment.The stirring and dispersing machine comprises a shell, a rotating shaft, a stirring paddle, a dispersing disc, shaft flow guide vanes, centrifugal vanes and a return pipe, a cavity is formed in the shell, the cavity comprises a stirring cavity and a dispersing cavity which are communicated, and the stirring cavity is located above the dispersing cavity; the rotating shaft is rotatably arranged in the cavity, and the first end of the rotating shaft along the length direction of the rotating shaft extends to the stirring cavity, and the second end of the rotating shaft extends to the dispersing cavity; the stirring paddle, the shaft flow guide vanes and the dispersing disc are coaxially arranged on the rotating shaft, the stirring paddle is arranged on the first end of the rotating shaft, the dispersing disc is arranged on the second end of the rotating shaft, and the shaft flow guide vanes are located between the stirring paddle and the dispersing disc; the centrifugal vanes are arranged on the dispersing disc; the side surface of the shell is provided with a return port and a discharge port, the return port is communicated with the stirring cavity, the discharge port is communicated with the dispersing cavity, and the return pipe is communicated with the discharge port and the return port.The stirring and dispersing machine is convenient to install, compact in structure and small in occupied space.

Description

Technical Field

[0001] This application relates to the field of mixing equipment technology, and more particularly to a mixing and dispersing machine. Background Technology

[0002] In industrial production, mixing and dispersing machines are mainly used to achieve uniform mixing and dispersion of powders and solvents. Existing mixing and dispersing machines generally consist of a dispersing body and a circulation tank (such as...). Figure 1 As shown, the circulating tank contains a stirring component, which initially agitates the material before it enters the disperser body through pipes for further dispersion. Therefore, the material level inside the circulating tank must be higher than the disperser's inlet, requiring a certain installation height and often necessitating the construction of a platform or the design of high support legs, increasing installation difficulty and cost. Furthermore, this type of agitator disperser, due to its relatively loose structure, occupies a large amount of space. Utility Model Content

[0003] To address at least one of the problems mentioned in the background art, this application provides a mixing and dispersing machine that is easy to install, has a compact structure, and occupies little space.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] This application provides a stirring and dispersing machine, including a shell, a rotating shaft, a stirring paddle, a dispersing disc, an axial flow guide vane, a centrifugal blade, and a return pipe. The shell has a cavity inside, which includes a stirring chamber and a dispersing chamber that are connected to each other. The stirring chamber is located above the dispersing chamber.

[0006] The rotating shaft is rotatably disposed in the cavity, and the first end of the rotating shaft extends to the stirring chamber and the second end extends to the dispersion chamber along its own length direction;

[0007] The stirring paddle, axial flow guide vane, and dispersion disc are coaxially mounted on the rotating shaft. The stirring paddle is mounted at the first end of the rotating shaft and is used to stir the material in the stirring chamber. The dispersion disc is mounted at the second end of the rotating shaft and is used to disperse the material stirred by the stirring paddle. The axial flow guide vane is located between the stirring paddle and the dispersion disc and is used to draw the material in the stirring chamber into the dispersion chamber.

[0008] Centrifugal blades are positioned on the dispersion disc and arranged around the rotating shaft to throw the material in the dispersion chamber to the side of the dispersion chamber by centrifugal force.

[0009] The outer shell has a return port and a discharge port distributed vertically on its side. The return port is connected to the mixing chamber, and the discharge port is connected to the dispersion chamber. One end of the return pipe is connected to the discharge port, and the other end is connected to the return port.

[0010] As an optional implementation, the cavity further includes a drainage cavity located between the stirring cavity and the dispersion cavity. The upper end of the drainage cavity is connected to the stirring cavity, and the lower end is connected to the dispersion cavity. The cross-section of the drainage cavity is smaller than the cross-section of the stirring cavity and the cross-section of the dispersion cavity.

[0011] As an optional implementation, the height of the dispersion chamber decreases from the middle to both sides, and the connection between the dispersion chamber and the return port is transitioned through a first arc surface.

[0012] As an optional implementation, the connection between the stirring chamber and the drainage chamber is transitioned by a second arc surface.

[0013] As an optional implementation, it also includes a discharge pipe and a first valve, one end of the discharge pipe being connected to the return pipe, and the first valve being disposed on the discharge pipe.

[0014] As an optional implementation, a second valve is also included, which is disposed in the return pipe.

[0015] As an optional implementation, a cooling jacket is also included, which is fitted over the outer casing.

[0016] As an optional implementation, the housing includes a first housing and a second housing, which are detachably connected along the height direction of the disperser.

[0017] As an optional implementation, a top cover is also included, which is removable and covers the top of the housing to seal the cavity.

[0018] As an optional implementation, the top cover has a feeding port that communicates with the cavity.

[0019] The mixing and dispersing machine provided in this application includes a shell, a rotating shaft, a stirring paddle, a dispersing disc, axial flow guide vanes, centrifugal blades, and a return pipe. The shell has an internal cavity comprising a connected stirring chamber and a dispersing chamber, with the stirring chamber located above the dispersing chamber. The rotating shaft is rotatably disposed within the cavity, with a first end extending to the stirring chamber and a second end extending to the dispersing chamber along its length. The stirring paddle, axial flow guide vanes, and dispersing disc are coaxially mounted on the rotating shaft. The stirring paddle is mounted at the first end of the rotating shaft for stirring the material in the stirring chamber, and the dispersing disc is mounted at the second end of the rotating shaft for dispersing the material stirred by the stirring paddle. The axial flow guide vanes are located between the stirring paddle and the dispersing disc for drawing material from the stirring chamber into the dispersing chamber. The centrifugal blades are disposed on the dispersing disc and arranged around the rotating shaft for throwing the material in the dispersing chamber to the side of the dispersing chamber using centrifugal force. The side of the shell has a vertically distributed return port and a discharge port. The return port is connected to the stirring chamber, and the discharge port is connected to the dispersing chamber. One end of the return pipe is connected to the discharge port, and the other end is connected to the return port.

[0020] The mixing and dispersing machine provided in this application allows materials to first enter the mixing chamber, where the mixing blades agitate them for initial mixing. Then, axial flow guide vanes use suction to draw the agitated material into the lower dispersion chamber. The axial flow guide vanes can quickly extract the material while preventing backflow. In the dispersion chamber, centrifugal blades mounted on a dispersion disc use centrifugal force to throw the material to the side of the dispersion chamber. The material then enters the return pipe through the side outlet and returns to the mixing chamber for further agitation, thus forming a cycle. Unlike existing technologies that separate the mixing tank and the disperser, this solution integrates the mixing and dispersion functions into a single chamber. This integrated design makes the structure more compact, reducing space requirements and avoiding installation difficulties caused by the material level requirements of the circulation tank, thus lowering installation costs. Furthermore, it significantly reduces the size of the connecting pipelines, minimizing pipeline losses and the risk of blockage, allowing power to be concentrated on the mixing and dispersion of the material, thereby improving dispersion efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a mixing and dispersing machine in the prior art;

[0023] Figure 2 This is a schematic diagram of the structure of the stirring and dispersing machine provided in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the dispersing disc and centrifugal blades in the stirring and dispersing machine provided in the embodiments of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100-Agitator / Disperser;

[0027] 110 - Outer shell; 111 - Stirring chamber; 112 - Dispersion chamber; 113 - Drainage chamber; 114 - Discharge port; 115 - Return port; 116 - First shell; 117 - Second shell;

[0028] 120-spindle;

[0029] 130 - Agitator;

[0030] 140-Dispersed disk;

[0031] 150-Axial flow guide vane;

[0032] 160-Centrifugal blades;

[0033] 170 - Return pipe;

[0034] 180-Discharge pipe;

[0035] 190 - First valve;

[0036] 200 - Second valve;

[0037] 210 - Cooling jacket;

[0038] 220 - Top cover; 221 - Feed port. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] In this application, the terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “lateral,” and “longitudinal” indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] Existing mixing and dispersing machines generally consist of a dispersing body and a circulation tank. The circulation tank contains a stirring component, where materials undergo initial mixing before entering the dispersing body through pipes for further dispersion. Therefore, the material level inside the circulation tank must be higher than the dispersing inlet, requiring a certain installation height and often necessitating the construction of a platform or the design of high support legs, increasing installation difficulty and cost. Furthermore, this type of mixing and dispersing machine, due to its relatively loose structure, occupies a large amount of space.

[0045] In view of this, this application provides a mixing and dispersing machine including a shell, a rotating shaft, a stirring paddle, a dispersing disc, an axial flow guide vane, centrifugal blades, and a return pipe. The shell has an internal cavity, which includes a connected stirring chamber and a dispersing chamber, with the stirring chamber located above the dispersing chamber. The rotating shaft is rotatably disposed in the cavity, with a first end extending to the stirring chamber and a second end extending to the dispersing chamber along its length. The stirring paddle, the axial flow guide vane, and the dispersing disc are coaxially mounted on the rotating shaft, with the stirring paddle mounted at the first end of the rotating shaft and the dispersing disc mounted at the second end. The axial flow guide vane is located between the stirring paddle and the dispersing disc. The centrifugal blades are disposed on the dispersing disc and arranged around the rotating shaft. The side of the shell has a vertically distributed return port and a discharge port, with the return port communicating with the stirring chamber and the discharge port communicating with the dispersing chamber. One end of the return pipe is connected to the discharge port, and the other end is connected to the return port.

[0046] During material processing, the material first enters the mixing chamber, where the agitator stirs it, achieving initial mixing. Then, axial flow guide vanes use suction to draw the stirred material into the lower dispersion chamber. The axial flow guide vanes both quickly extract the material and prevent backflow. Centrifugal blades mounted on the dispersion disc use centrifugal force to throw the material to the side of the dispersion chamber. The material then enters the return pipe through the side outlet and returns to the mixing chamber for further stirring, thus forming a cycle. This design integrates the mixing and dispersion functions into a single chamber. This integrated design makes the structure more compact, reducing space requirements and avoiding installation difficulties caused by the material level requirements of the circulation tank, thereby lowering installation costs.

[0047] Figure 1 This is a schematic diagram of the structure of a mixing and dispersing machine in the prior art; Figure 2 This is a schematic diagram of the structure of the stirring and dispersing machine provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the dispersing disc and centrifugal blades in the stirring and dispersing machine provided in the embodiments of this application.

[0048] You can refer to this. Figures 1 to 3 This application provides a stirring and dispersing machine 100, including a housing 110, a rotating shaft 120, a stirring paddle 130, a dispersing disc 140, an axial flow guide vane 150, a centrifugal blade 160, and a return pipe 170. The housing 110 has an internal cavity, which includes a connected stirring chamber 111 and a dispersing chamber 112, with the stirring chamber 111 located above the dispersing chamber 112. The rotating shaft 120 is rotatably disposed within the cavity, with a first end extending to the stirring chamber 111 and a second end extending to the dispersing chamber 112 along its length. The stirring paddle 130, the axial flow guide vane 150, and the dispersing disc 140 are coaxially mounted on the rotating shaft 120, with the stirring paddle 130 mounted at the first end of the rotating shaft 120 for stirring the material in the stirring chamber 111. The material is stirred, and the dispersion disc 140 is installed at the second end of the rotating shaft 120 to disperse the material stirred by the stirring paddle 130. The axial flow guide vane 150 is located between the stirring paddle 130 and the dispersion disc 140 to draw the material in the stirring chamber 111 into the dispersion chamber 112. The centrifugal blade 160 is set on the dispersion disc 140 and arranged around the rotating shaft 120 to throw the material in the dispersion chamber 112 to the side of the dispersion chamber 112 by centrifugal force. The side of the outer shell 110 is provided with a return port 115 and a discharge port 114 distributed vertically. The return port 115 is connected to the stirring chamber 111, and the discharge port 114 is connected to the dispersion chamber 112. One end of the return pipe 170 is connected to the discharge port 114, and the other end is connected to the return port 115.

[0049] In this embodiment of the application, the mixing and dispersing machine 100 allows materials to first enter the mixing chamber 111, where the mixing paddle 130 stirs them, causing initial mixing. Then, the axial flow guide vane 150 uses suction to draw the stirred material into the lower dispersing chamber 112. The axial flow guide vane 150 can quickly extract the material while preventing backflow. In the dispersing chamber 112, centrifugal blades 160 are mounted on the dispersing disc 140, which uses centrifugal force to throw the material to the side of the dispersing chamber 112. Under pressure, the material enters the return pipe 170 through the side outlet 114, and then returns to the mixing chamber 111 through the return port 115 for further stirring, thus forming a cycle. Unlike existing equipment that separates the mixing tank and the dispersing machine, this solution integrates the stirring and dispersing functions into one chamber. This integrated design makes the structure more compact, reducing space requirements and avoiding installation difficulties caused by the material level requirements of the circulating tank, thus lowering installation costs. In addition, it can significantly reduce the size of the connecting pipeline, thereby reducing pipeline losses and the risk of material blockage, allowing power to be concentrated on the mixing and dispersion of materials, thus improving dispersion efficiency.

[0050] In the above embodiments, the cavity may further include a drainage cavity 113, which is located between the stirring cavity 111 and the dispersion cavity 112. The upper end of the drainage cavity 113 is connected to the stirring cavity 111, and the lower end is connected to the dispersion cavity 112. The cross-section of the drainage cavity 113 is smaller than the cross-sections of the stirring cavity 111 and the dispersion cavity 112. It can be understood that, under the action of gravity, the stirred material enters the smaller-cross-section drainage cavity 113 from the larger-cross-section stirring cavity 111, increasing the material flow rate. Simultaneously, under the action of the axial flow guide vanes 150, the material is further guided quickly and concentratedly into the dispersion cavity 112, preventing material blockage and backflow from overflowing from the dispersion cavity 112 back to the stirring cavity 111, ensuring smooth material circulation. When the material enters the larger-cross-section dispersion cavity 112 from the drainage cavity 113, the space suddenly increases, allowing the material to diffuse more fully and effectively improving the material dispersion effect. In summary, this cavity design allows for smoother and more efficient material flow, avoids material stagnation, and helps improve the overall working efficiency of the mixing and dispersing machine 100.

[0051] In the above embodiment, the height of the dispersion chamber 112 can be distributed in a decreasing pattern from the middle to both sides, and the connection between the dispersion chamber 112 and the return port 115 is transitioned by a first arc surface. It can be understood that when the material conveyed by the guide chamber 113 enters the dispersion chamber 112, the higher height in the middle region provides ample working space for the high-speed dispersion of the material by the dispersion disc 140, ensuring that the material can fully contact the dispersion disc 140. The gradually decreasing height towards both sides forms a guiding structure, which, together with the centrifugal force generated by the centrifugal blades 160, guides the dispersed material to flow more smoothly and centrally to both sides of the dispersion chamber 112, increasing the pressure of the material entering the discharge port 114, allowing the material to more smoothly return to the mixing chamber 111 through the return pipe 170, preventing material accumulation in the middle of the dispersion chamber 112, and improving the material flow efficiency. Meanwhile, the connection between the dispersion chamber 112 and the return port 115 is transitioned by a first arc surface. This arc surface design eliminates the sharp corners of the connection, which not only reduces the resistance during material flow and prevents material from stagnating or accumulating at the corners, but also allows the material flowing to the discharge port 114 to maintain a stable flow state, further optimizing the material conveying process from the dispersion chamber 112 to the return pipe 170, and ensuring the continuity and efficiency of the entire mixing, dispersion, and return process.

[0052] In the above embodiment, the connection between the stirring chamber 111 and the drainage chamber 113 can be transitioned by a second arc surface. This design eliminates the sharp corners at the connection, allowing the material to flow along a smooth arc surface when entering the drainage chamber 113 from the stirring chamber 111. This reduces flow resistance, avoids material stagnation caused by structural abrupt changes, and ensures the continuity of material flow. Furthermore, the second arc surface also plays a good guiding role, enabling the material to enter the drainage chamber 113 more accurately and orderly, which helps the subsequent axial flow guide vane 150 to efficiently suck and process the material, thereby improving the overall operating efficiency and stability of the mixing and dispersing machine 100.

[0053] The above embodiments may further include a discharge pipe 180 and a first valve 190. One end of the discharge pipe 180 is connected to the return pipe 170, and the first valve 190 is disposed on the discharge pipe 180. It can be understood that the discharge pipe 180 can be used to unload the stirred and dispersed material through the discharge pipe 180 when the material meets the requirements. The first valve 190 can precisely control the timing of material discharge. When the material does not meet the requirements, closing the valve ensures that the material continues to circulate in the stirring, dispersing, and reflux system, ensuring thorough mixing and dispersion. When the material meets the standards, opening the valve allows for timely unloading. Connecting the discharge pipe 180 to the return pipe 170 further makes the equipment layout more compact and reasonable, fully utilizing existing pipeline resources, reducing the laying of additional pipelines, and lowering structural complexity and cost. At the same time, this connection method facilitates monitoring and sampling of the material during the unloading process, improving the convenience of equipment operation.

[0054] In the above embodiments, a second valve 200 may also be included, which is disposed in the return pipe 170. The second valve 200 serves as a control component for the return pipe 170, enabling effective opening and closing of the return pipe 170. When material circulation, stirring, and dispersion are required, opening the second valve 200 ensures unobstructed flow through the return pipe 170, allowing the material to smoothly return to the stirring chamber 111, ensuring the continuity of the entire circulation process. When it is necessary to pause the return process, closing the second valve 200 cuts off the return process, making the operation convenient and efficient.

[0055] Secondly, the second valve 200 can precisely control the return material flow rate. It's understandable that different materials, due to differences in their physical properties (such as viscosity and particle size), have varying requirements for stirring and dispersion time. By adjusting the opening of the second valve 200, the return material speed can be flexibly controlled. For example, for materials requiring longer stirring and dispersion time to achieve a uniform mixture, the valve opening can be appropriately reduced to decrease the return material speed, allowing the material to remain in the stirring chamber 111 and dispersion chamber 112 for a longer period, thus ensuring sufficient contact with the stirring and dispersion components and achieving better mixing and dispersion effects. Conversely, for materials requiring shorter stirring and dispersion times, the valve opening can be increased to accelerate the return material speed and improve production efficiency. In summary, this design of the second valve 200 significantly increases the applicability and flexibility of the mixing and dispersing machine 100, better meeting the processing needs of different materials.

[0056] In the above embodiments, a cooling jacket 210 may also be included, which is fitted over the outer shell 110. It is understood that during the long-term stirring and dispersion of materials, the mechanical friction between the stirring paddle 130, the dispersion disc 140, and the materials, as well as the reaction of some materials themselves, may generate heat. If this heat accumulates, it may not only change the physical properties of the materials (such as increased viscosity or easy agglomeration) or chemical stability (such as deterioration of heat-sensitive materials), but may also cause the temperature of the outer shell 110 to become too high, affecting the service life of the equipment. The cooling jacket 210, fitted over the outer shell 110, can quickly remove the heat conducted from the chamber to the outer shell 110 by introducing a cooling medium (such as cooling water or cooling oil) into the jacket and utilizing the heat exchange between the circulating medium and the outer shell 110, thus maintaining the temperature in the stirring chamber 111, the dispersion chamber 112, and the drainage chamber 113 within a suitable range for material processing. Meanwhile, a stable temperature environment can ensure the operational stability of components such as the axial flow guide vane 150 and valves, reduce mechanical failures caused by temperature fluctuations, and further improve the overall reliability of the equipment. It is especially suitable for material handling scenarios that are sensitive to temperature or require long-term continuous operation, and provides a guarantee for the continuity of the production process and the consistency of product quality.

[0057] In the above embodiments, the outer casing 110 may include a first casing 116 and a second casing 117, which are detachably connected along the height direction of the disperser. When it is necessary to inspect, clean, or replace core components such as the stirring paddle 130, dispersion disc 140, and axial flow guide vane 150 inside the stirring chamber 111 and dispersion chamber 112, it is not necessary to disassemble the entire equipment. Only the first casing 116 and the second casing 117 need to be separated along the height direction to directly access the components inside the chamber, which greatly reduces the difficulty and time cost of maintenance operations. From the perspective of material cleaning, for materials that are prone to residue and have high viscosity, the detachable structure allows workers to more thoroughly clean the dead corners inside the chamber, avoid cross-contamination between different batches of materials, and ensure product purity. In addition, this design also provides convenience for upgrading and modifying equipment components. If it is necessary to replace the stirring paddle 130 or dispersion disc 140 with different specifications to adapt to different material processing needs, the detachable casing structure can simplify the replacement process, improve the adaptability of the equipment to diverse production needs, and further enhance the practicality and operational flexibility of the overall equipment.

[0058] In the above embodiments, a top cover 220 may also be included. The top cover 220 is detachably attached to the top of the outer shell 110 to seal the cavity. The top cover 220 effectively isolates the external environment from the cavity interior, preventing dust, impurities, etc., from entering the cavity and contaminating the materials. It also prevents materials from splashing out of the cavity during the mixing and dispersion process due to high-speed movement, ensuring material utilization and a clean operating environment. When materials need to be added to the mixing chamber 111, the top cover 220 can be directly removed for addition, making the operation simple and quick. If it is necessary to inspect or maintain the internal components of the mixing chamber 111, removing the top cover 220 also provides workers with a more convenient operating space without the need for additional disassembly of the shell structure. Furthermore, the detachable feature facilitates the cleaning and replacement of the top cover 220 itself. If the top cover 220 is damaged or aged, it can be replaced separately, reducing equipment maintenance costs and further improving the overall ease of use and practicality of the equipment.

[0059] In the above embodiments, the top cover 220 may have a feeding port 221, which is connected to the cavity. When the equipment is running normally and the top cover 220 is in a closed state, materials can be directly added to the cavity through the feeding port 221 without disassembling the top cover 220. This avoids the risk of external impurities entering due to frequent disassembly of the top cover 220 and reduces temperature fluctuations in the chamber caused by disassembly of the top cover 220, ensuring the stability of the material handling environment. At the same time, the feeding port 221 can be adapted to continuous production scenarios. When it is necessary to continuously add materials to the mixing chamber 111 to maintain continuous operation, uninterrupted feeding can be achieved through the feeding port 221 without interrupting equipment operation, significantly improving production efficiency. Furthermore, according to the material characteristics and feeding requirements, valves or flow meters can be installed at the feeding port 221 to achieve precise control of the feeding rate and amount, further enhancing the controllability of the material handling process and adapting to more diverse production needs.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A stirring and dispersing machine, characterized in that, It includes a shell, a rotating shaft, a stirring paddle, a dispersing disc, axial flow guide vanes, centrifugal blades, and a return pipe. The shell forms a cavity inside, which includes a connected stirring chamber and a dispersing chamber, with the stirring chamber located above the dispersing chamber. The rotating shaft is rotatably disposed in the cavity, and the first end of the rotating shaft extends to the stirring chamber along its own length direction, and the second end extends to the dispersion chamber; The stirring paddle, the axial flow guide vane, and the dispersion disk are coaxially mounted on the rotating shaft. The stirring paddle is mounted at the first end of the rotating shaft and is used to stir the material in the stirring chamber. The dispersion disk is mounted at the second end of the rotating shaft and is used to disperse the material stirred by the stirring paddle. The axial flow guide vane is located between the stirring paddle and the dispersion disk and is used to draw the material in the stirring chamber into the dispersion chamber. The centrifugal blades are disposed on the dispersion disk and arranged around the rotating shaft, and are used to throw the material in the dispersion chamber to the side of the dispersion chamber by centrifugal force. The outer shell has a return port and a discharge port distributed vertically on its side. The return port is connected to the stirring chamber, and the discharge port is connected to the dispersion chamber. One end of the return pipe is connected to the discharge port, and the other end is connected to the return port.

2. The mixing and dispersing machine according to claim 1, characterized in that, The cavity further includes a drainage cavity, which is located between the stirring cavity and the dispersion cavity. The upper end of the drainage cavity is connected to the stirring cavity, and the lower end is connected to the dispersion cavity. The cross-section of the drainage cavity is smaller than the cross-section of the stirring cavity and the cross-section of the dispersion cavity.

3. The mixing and dispersing machine according to claim 2, characterized in that, The height of the dispersion chamber decreases from the middle to both sides, and the connection between the dispersion chamber and the return port is transitioned by a first arc surface.

4. The stirring and dispersing machine according to claim 3, characterized in that, The connection between the stirring chamber and the drainage chamber is transitioned by a second arc surface.

5. The stirring and dispersing machine according to any one of claims 1-4, characterized in that, It also includes a discharge pipe and a first valve, one end of the discharge pipe being connected to the return pipe, and the first valve being disposed on the discharge pipe.

6. The stirring and dispersing machine according to any one of claims 1-4, characterized in that, It also includes a second valve, which is disposed on the return pipe.

7. The stirring and dispersing machine according to any one of claims 1-4, characterized in that, It also includes a cooling jacket, which is fitted over the outer shell.

8. The stirring and dispersing machine according to any one of claims 1-4, characterized in that, The outer casing includes a first casing and a second casing, which are detachably connected along the height direction of the disperser.

9. The stirring and dispersing machine according to any one of claims 1-4, characterized in that, It also includes a top cover, which is removable and covers the top of the housing to seal the cavity.

10. The stirring and dispersing machine according to claim 9, characterized in that, The top cover has a feeding port, which is connected to the cavity.

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