Agitator with flow mixing function
Patent Information
- Application Number
- CN202522043572.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0004]针对上述中的相关技术，由于桨叶随搅拌轴同步旋转，物料易在桨叶的带动下形成与搅拌轴同向的圆周运动，导致物料整体流动方向单一，难以形成复杂的对流或湍流；同时，现有搅拌装置多采用单一类型的桨叶结构，且桨叶分布方式相对简单，仅能在局部区域形成有限的搅动效果，对于高粘度物料或多相混合物料而言，容易出现局部混合不充分、组分分布不均的问题，不仅影响初步混合的效果，还会增加后续均质机的处理负担，进而导致最终产品的乳化稳定性下降，影响产品质量
[0033]1.搅拌轴上的主浆叶板随搅拌轴同步转动，可对反应釜内中部区域物料形成主动搅动，搅拌杆带动副浆叶板同步转动则能覆盖反应釜内侧壁附近的物料，而位于主浆叶板与副浆叶板转动空间之间的搅流棒保持固定不动，其表面排布的阻流浆叶板与动态转动的主浆叶板、副浆叶板形成动静协同的搅流配合关系，固定的阻流浆叶板可打破物料随主浆叶板、副浆叶板形成的单一圆周运动惯性，避免物料因持续同向转动导致的物料流场固化，从静态角度为物料流场提供稳定的干扰支撑，与动态的主浆叶板、副浆叶板的搅动形成互补，显著增强搅流效果。
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Figure CN224656782U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of mechanical equipment, and in particular to a stirring device for an emulsifying apparatus. Background Technology
[0002] Emulsification equipment is used in the fields of daily chemicals, pharmaceuticals, food and fine chemicals for material emulsification. Through stirring, grinding and other actions, it mixes and refines various immiscible or difficult-to-mix materials to form a uniform and stable emulsion state, thereby meeting the requirements for material morphology and uniformity in the production and process development of related products.
[0003] Existing emulsification equipment typically includes a reaction vessel for holding the materials, a stirring device mounted on the reaction vessel, and a homogenizer connected to the reaction vessel. The stirring device generally consists of a stirring shaft, a motor for driving the stirring shaft, and impellers connected to the stirring shaft. In actual operation, the operator first feeds the materials to be processed into the reaction vessel, starts the motor to drive the stirring shaft to rotate, and causes the impellers to rotate synchronously with the stirring shaft. Through the pushing and stirring action of the impellers on the materials, the initial agglomeration of the materials is broken up, achieving a preliminary uniform distribution of different components. After the preliminary stirring is completed, the entire material in the reaction vessel is transported to the homogenizer, where the high-frequency shearing or grinding action of the homogenizer further refines the materials. After processing by the homogenizer, the materials are discharged through the discharge pipe, completing the entire emulsification process.
[0004] Regarding the aforementioned technologies, since the impeller rotates synchronously with the stirring shaft, the material is easily driven by the impeller to form a circular motion in the same direction as the stirring shaft, resulting in a single overall flow direction of the material, making it difficult to form complex convection or turbulence. At the same time, existing stirring devices mostly use a single type of impeller structure, and the impeller distribution is relatively simple, which can only form a limited stirring effect in a local area. For high-viscosity materials or multiphase mixtures, it is easy to have problems such as insufficient local mixing and uneven component distribution. This not only affects the initial mixing effect, but also increases the processing burden of the subsequent homogenizer, which in turn leads to a decrease in the emulsification stability of the final product and affects product quality. Utility Model Content
[0005] In view of the shortcomings of the existing technology, one of the purposes of this utility model is to provide a stirring device with agitation function.
[0006] The stirring device with agitation function provided in this application adopts the following technical solution:
[0007] A stirring device with agitation function includes a stirring shaft, one end of which is connected to the output shaft of a motor. The end of the stirring shaft away from the motor extends into the reactor. A main impeller plate with uniformly arranged blades is mounted on the stirring shaft. A stirring rod is connected to the end of the stirring shaft away from the motor, near the inner wall of the reactor. A scraper plate with uniformly arranged blades is movably connected to the side of the stirring rod close to the inner wall of the reactor. A secondary impeller plate with uniformly arranged blades is mounted on the side of the stirring rod away from the scraper plate. A vertical columnar structure, called a stirring rod, is provided between the rotation space of the main impeller plate and the rotation space of the secondary impeller plate. The upper end of the stirring rod is fixed above the reactor.
[0008] The agitator is provided with spiral fins that rotate from top to bottom;
[0009] The agitator bar is equipped with flow-blocking blades;
[0010] The two adjacent flow-blocking blades, one of which is inserted between the two adjacent main blades, and the other of which is inserted between the two adjacent auxiliary blades;
[0011] The main impeller is inclinedly connected to the stirring shaft, the auxiliary impeller is inclinedly connected to the stirring rod, and the flow-blocking impeller is inclinedly connected to the agitator.
[0012] The main blade and the auxiliary blade are inclined in the same direction, while the main blade and the flow-blocking blade are inclined in opposite directions, forming an alternating agitation structure.
[0013] By adopting the above technical solution, the main impeller on the stirring shaft rotates synchronously with the stirring shaft, which can actively agitate the material in the middle area of the reactor. The stirring rod drives the auxiliary impeller to rotate synchronously, which can cover the material near the inner wall of the reactor. The agitator bar located between the main impeller and the auxiliary impeller remains fixed. The flow-blocking impeller arranged on its surface forms a dynamic and static synergistic agitation relationship with the dynamically rotating main impeller and auxiliary impeller. The fixed flow-blocking impeller can break the single circular motion inertia formed by the material with the main impeller and auxiliary impeller, and avoid the solidification of the material flow field caused by the continuous rotation in the same direction. From a static point of view, it provides stable interference support for the material flow field, complementing the agitation of the dynamic main impeller and auxiliary impeller, and significantly enhancing the agitation effect.
[0014] Meanwhile, adjacent flow-blocking blades are interspersed between adjacent main and auxiliary blades. This interspersed layout can precisely cover the gap area between the main and auxiliary blades, achieving agitation coverage in the middle, side walls, and gap area of the reactor. The main blades are inclined to the stirring shaft, the auxiliary blades to the stirring rod, and the flow-blocking blades to the stirring rod. The main and auxiliary blades are inclined in the same direction, which can push the material in the same direction synchronously, forming a concentrated directional thrust. The flow-blocking blades are inclined in the opposite direction to the main blades, which can guide the directional flow of the material in the opposite direction, forcing the material to form vertical convection under the combined effect of the reverse guidance, breaking the unidirectional flow trend of the material, and allowing the material to form a complex circulation path in the reactor, making the material more uniformly mixed.
[0015] Furthermore, the spiral fins that rotate downwards on the outer periphery of the agitator bar can provide additional cutting and guiding effects on the material as it moves in a circular motion with the main and auxiliary blades. After contacting the spiral fins, the material will briefly flow along the spiral direction of the fins, which not only prevents the material from moving along the same trajectory for a long time, but also creates local turbulence under the guidance of the spiral trajectory. This, together with the reverse guidance of the flow-blocking blades and the directional pushing of the main and auxiliary blades, forms a triple agitation effect, optimizing the flow field from different dimensions and ensuring that the material achieves uniform component distribution during the full agitation process. This solves the problems of limited agitation effect and uneven mixing in traditional mixing devices.
[0016] Preferably, at least two bushing supports are provided along the length of the stirring rod on the side of the stirring rod closest to the inner wall of the reactor.
[0017] The rotating shaft is rotatably installed in the bushing bracket, and the scraper is sleeved on the rotating shaft;
[0018] The gap between the side of the scraper away from the rotating shaft and the inner wall of the reactor is less than 3 mm and greater than 0.5 mm.
[0019] By adopting the above technical solution, a bushing support is set on the side of the stirring rod near the inner wall of the reactor, and the rotating shaft is rotatably installed on the bushing support and the scraper is sleeved on the rotating shaft. This structural design allows the scraper to rotate freely around the rotating shaft. This rotational characteristic allows the scraper to adapt to the structure of the inner wall of the reactor, avoiding scraper jamming or excessive wear caused by local unevenness of the inner wall of the reactor. The gap between the side of the scraper away from the rotating shaft and the inner wall of the reactor is less than 3mm and greater than 0.5mm, ensuring that the scraper fits tightly against the reactor wall and thoroughly scrapes off the material attached to the inner wall, preventing material residue from affecting subsequent stirring or cleaning, and avoiding equipment damage caused by direct rigid contact between the scraper and the reactor wall.
[0020] Preferably, a temperature control probe is detachably connected to the side wall at the top of the reactor;
[0021] The detection end of the temperature control probe passes through the side wall of the reactor and extends into the reactor, and the detection end of the temperature control probe is located between the rotation space of the main blade plate and the rotation space of the auxiliary blade plate.
[0022] By adopting the above technical solution, the temperature control probe that can be detachably connected to the top side wall of the reactor can detect the temperature of the material inside the reactor in real time. This allows the staff to adjust the stirring parameters in a timely manner based on the temperature data, such as adjusting the motor speed, to ensure that the material is mixed in a suitable temperature environment and to avoid the mixing effect or changes in the properties of the material due to abnormal temperature.
[0023] The detection end of the temperature control probe is located in the area between the main blade plate and the auxiliary blade plate. This area is the core stirring zone where the main blade plate and the auxiliary blade plate work together. The material mixing is most intense and the temperature distribution is most uniform. It can more accurately reflect the true temperature of the material in the reactor, avoid the detection data being lagging or distorted, and provide a precise basis for judging the mixing state of the material.
[0024] Preferably, the main blade plate, the auxiliary blade plate, and the flow-blocking blade plate are provided with a plurality of through holes, referred to as flow-disrupting holes;
[0025] The turbulence holes on the main blade plate, auxiliary blade plate, and choke blade plate are arranged in a staggered manner.
[0026] By adopting the above technical solution, when the material undergoes circular motion within the reactor, some material passes through the turbulence holes to form a local jet. This jet breaks the laminar flow near the main impeller plate, auxiliary impeller plate, and choke impeller plate, causing the material to form a more complex flow trajectory. The staggered arrangement of the turbulence holes on the impeller plate avoids flow field overlap between adjacent rows of turbulence holes, ensuring that the jet effect uniformly covers the impeller plate stirring area, further enhancing the turbulence effect. This turbulence hole structure, combined with the stirring action of the main and auxiliary impeller plates, increases material flow on top of the original stirring, effectively reducing material adhesion to the surfaces of the main, auxiliary, and choke impeller plates, significantly improving material mixing and stirring efficiency.
[0027] Preferably, the spiral fins of the agitator are integrally formed on the outer periphery of the agitator, and the thickness of the spiral fins is 3-5 mm.
[0028] By adopting the above technical solution, the spiral fins of the agitator are integrally formed with the agitator, so that there are no splicing gaps between the spiral fins and the agitator. This avoids the problem of material residue in the gaps of the splicing structure, which can significantly improve the structural strength of the spiral fins, prevent the spiral fins from breaking during long-term material cutting, and extend the service life of the agitator.
[0029] Meanwhile, a spiral fin thickness of 3-5mm ensures sufficient structural strength to withstand material impact while controlling material flow resistance within a reasonable range, thus guaranteeing effective agitation. If the spiral fin thickness is less than 3mm, it will result in insufficient rigidity, making it prone to deformation when impacted by high-viscosity materials and unable to effectively cut the material. If the spiral fin thickness is greater than 5mm, it will increase material flow resistance and affect mixing efficiency.
[0030] Preferably, the main impeller is inclinedly connected to the axis of the stirring shaft at an angle of 30 to 60 degrees, the auxiliary impeller is inclinedly connected to the axis of the stirring rod at an angle of 30 to 60 degrees, and the flow-blocking impeller is inclinedly connected to the axis of the agitator at an angle of 20 to 45 degrees.
[0031] By adopting the above technical solution, the main impeller plate forms an angle of 30-60 degrees with the axis of the stirring shaft, and the auxiliary impeller plate forms an angle of 30-60 degrees with the axis of the stirring rod. This angle range ensures that the main and auxiliary impeller plates generate sufficient thrust on the material, avoiding insufficient propulsion and slow material flow due to excessively small angles, while also preventing excessively large angles from increasing the rotational resistance of the impellers. This ensures that when the main and auxiliary impeller plates push the material synchronously in the same direction, they can effectively drive the material in the middle and side wall areas of the reactor to form a directional flow. The flow-blocking impeller plate forms an angle of 20-45 degrees with the axis of the stirring rod, which is smaller than the angles of the main and auxiliary impeller plates. This angle can effectively guide the material pushed by the main and auxiliary impeller plates in the opposite direction, without excessively obstructing the material flow due to excessively large angles. This avoids disrupting the basic flow field formed by the main and auxiliary impeller plates, achieving a guiding rather than obstructing stirring effect, and further improving the efficiency of material mixing.
[0032] In summary, this application includes at least one of the following beneficial technical effects:
[0033] 1. The main impeller on the stirring shaft rotates synchronously with the stirring shaft, which can actively agitate the material in the central area of the reactor. The stirring rod drives the auxiliary impeller to rotate synchronously, which can cover the material near the inner side wall of the reactor. The agitator bar located between the main impeller and the auxiliary impeller remains fixed. The flow-blocking impeller arranged on its surface forms a dynamic and static synergistic agitation relationship with the dynamically rotating main impeller and auxiliary impeller. The fixed flow-blocking impeller can break the inertia of the single circular motion formed by the material with the main impeller and auxiliary impeller, and avoid the solidification of the material flow field caused by the continuous rotation in the same direction. From a static point of view, it provides stable interference support for the material flow field, complementing the agitation of the dynamic main impeller and auxiliary impeller, and significantly enhancing the agitation effect.
[0034] Meanwhile, adjacent flow-blocking blades are interspersed between adjacent main and auxiliary blades. This interspersed layout can precisely cover the gap area between the main and auxiliary blades, achieving agitation coverage in the middle, side walls, and gap area of the reactor. The main blades are inclined to the stirring shaft, the auxiliary blades to the stirring rod, and the flow-blocking blades to the stirring rod. The main and auxiliary blades are inclined in the same direction, which can push the material in the same direction synchronously, forming a concentrated directional thrust. The flow-blocking blades are inclined in the opposite direction to the main blades, which can guide the directional flow of the material in the opposite direction, forcing the material to form vertical convection under the combined effect of the reverse guidance, breaking the unidirectional flow trend of the material, and allowing the material to form a complex circulation path in the reactor, making the material more uniformly mixed.
[0035] In addition, the spiral fins that rotate downwards on the outer periphery of the agitator can provide additional cutting and guiding effects on the material as it moves in a circular motion with the main and auxiliary blades. After the material comes into contact with the spiral fins, it will flow briefly along the spiral direction of the fins. This not only prevents the material from moving along the same trajectory for a long time, but also creates local turbulence under the guidance of the spiral trajectory. This, together with the reverse guidance of the flow-blocking blades and the directional pushing of the main and auxiliary blades, forms a triple agitation effect, which optimizes the flow field from different dimensions and ensures that the material achieves uniform component distribution during the full agitation process. This solves the problems of limited agitation effect and uneven mixing in traditional agitators.
[0036] 2. A bushing support is installed on the side of the stirring rod near the inner wall of the reactor, and the rotating shaft is rotatably mounted on the bushing support with the scraper sleeved on the rotating shaft. This structural design allows the scraper to rotate freely around the rotating shaft. This rotational characteristic allows the scraper to adapt to the structure of the inner wall of the reactor, avoiding scraper jamming or excessive wear caused by unevenness of the inner wall of the reactor. The gap of less than 3mm between the side of the scraper away from the rotating shaft and the inner wall of the reactor ensures that the scraper fits tightly against the reactor wall, thoroughly scraping off the material adhering to the inner wall, preventing material residue from affecting subsequent stirring or cleaning, and avoiding equipment damage caused by direct rigid contact between the scraper and the reactor wall.
[0037] 3. The temperature control probe, which can be detachably connected to the top side wall of the reactor, can detect the temperature of the material inside the reactor in real time. This allows the staff to adjust the stirring parameters, such as the motor speed, in a timely manner based on the temperature data, to ensure that the material is mixed in a suitable temperature environment and to avoid the mixing effect or changes in the properties of the material due to abnormal temperature.
[0038] The detection end of the temperature control probe is located in the area between the main blade plate and the auxiliary blade plate. This area is the core stirring zone where the main blade plate and the auxiliary blade plate work together. The material mixing is most intense and the temperature distribution is most uniform. It can more accurately reflect the true temperature of the material in the reactor, avoid the detection data being lagging or distorted, and provide a precise basis for judging the mixing state of the material. Attached Figure Description
[0039] Figure 1 This embodiment of the application is a schematic diagram illustrating the internal structure of a stirring device with agitation function.
[0040] Reference numerals in the attached diagram: 1. Stirring shaft; 2. Motor; 3. Reactor; 4. Main impeller; 5. Stirring rod; 6. Scraper; 7. Secondary impeller; 8. Agitator; 9. Baffle impeller; 10. Spiral fin; 11. Shaft sleeve support; 12. Rotating shaft; 13. Temperature control probe; 14. Turbulence hole. Detailed Implementation
[0041] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.
[0042] This application discloses a stirring device with agitation function.
[0043] Reference Figure 1 The stirring device with agitation function includes a stirring shaft 1. One end of the stirring shaft 1 is connected to the output shaft of the motor 2 via a coupling to ensure that the motor 2 can stably drive the stirring shaft 1 to rotate when it starts. The end of the stirring shaft 1 away from the motor 2 extends into the interior of the reactor 3 through a pre-set mounting hole at the top of the reactor 3. A sealing component is added at the mounting hole according to sanitary requirements to prevent material leakage or the entry of external impurities. Main impeller plates 4 are installed on the stirring shaft 1. The main impeller plates 4 are evenly arranged along the axial direction of the stirring shaft 1 and fixed on the outer wall of the stirring shaft 1. The number of main impeller plates 4 can be flexibly set according to the volume of the reactor 3 and the characteristics of the material to achieve sufficient agitation of the material in the central area of the reactor 3.
[0044] The end of the stirring shaft 1 away from the motor 2 is connected to a stirring rod 5 that is close to the inner wall of the reactor 3. The stirring rod 5 is close to the inner wall of the reactor 3 but does not contact the inner wall of the reactor 3, ensuring that the stirring rod 5 will not interfere with the inner wall of the reactor 3 when it rotates with the stirring shaft 1. On the side of the stirring rod 5 close to the inner wall of the reactor 3, at least two bushing supports 11 are provided along the length of the stirring rod 5. The bushing supports 11 are block-shaped structures and are fixed to the side wall of the stirring rod 5 by welding. Each bushing support 11 has a shaft hole in the middle, and the rotating shaft 12 is rotatably installed in the shaft hole. The scraper 6 is sleeved on the outer wall of the rotating shaft 12, so that the scraper 6 can rotate freely around the rotating shaft 12. The gap between the side of the scraper 6 away from the rotating shaft 12 and the inner wall of the reactor 3 is less than 3mm and greater than 0.5mm. This gap setting can ensure that the scraper 6 can effectively scrape off the material attached to the inner wall of the reactor 3, and can also avoid wear caused by direct rigid contact between the scraper 6 and the inner wall of the reactor 3. At the same time, the rotation characteristics of the scraper 6 allow the scraper 6 to swing adaptively along the rotating shaft 12, avoiding local wear between the scraper 6 and the inner wall of the reactor 3 caused by local minor unevenness of the reactor 3. On the side of the stirring rod 5 away from the scraper 6, that is, the side facing the stirring shaft 1, auxiliary blades 7 are evenly installed. The auxiliary blades 7 are evenly arranged along the length of the stirring rod 5, forming a vertically corresponding distribution relationship with the main blades 4.
[0045] Between the rotation space of the main impeller plate 4 and the rotation space of the auxiliary impeller plate 7, a columnar agitator 8 is vertically arranged. The upper end of the agitator 8 is fixed above the reactor 3, and the lower end of the agitator 8 extends towards the bottom of the reactor 3. Its length is close to the bottom of the reactor 3 but does not contact the bottom and does not interfere with the movement path of the stirring shaft 1 and the stirring rod 5. Flow-blocking impeller plates 9 are evenly arranged axially on the agitator 8. Among the two adjacent flow-blocking impeller plates 9, one is inserted between two adjacent main impeller plates 4, and the other is inserted between two adjacent auxiliary impeller plates 7. A gap is reserved between the flow-blocking impeller plate 9 and the main impeller plate 4 and the auxiliary impeller plate 7 to ensure that the main impeller plate 4 and the auxiliary impeller plate 7 will not collide or interfere with the flow-blocking impeller plate 9 when they rotate, while providing a channel for material flow.
[0046] Furthermore, the main impeller plate 4 is inclinedly connected to the stirring shaft 1, the auxiliary impeller plate 7 is inclinedly connected to the stirring rod 5, and the flow-blocking impeller plate 9 is inclinedly connected to the agitator rod 8. Specifically, the main impeller plate 4 is inclined at an angle of 30 to 60 degrees to the axis of the stirring shaft 1, the auxiliary impeller plate 7 is inclined at an angle of 30 to 60 degrees to the axis of the stirring rod 5, and the flow-blocking impeller plate 9 is inclined at an angle of 20 to 45 degrees to the axis of the agitator rod 8. The main impeller plate 4 and the auxiliary impeller plate 7 are inclined in the same direction, while the main impeller plate 4 and the flow-blocking impeller plate 9 are inclined in opposite directions, forming an alternating agitation structure. In this embodiment, the main blade 4 is tilted at an angle of 30 degrees, the auxiliary blade 7 is tilted at an angle of 30 degrees, and the choke blade 9 is tilted at an angle of 20 degrees. This angle setting allows the main blade 4 and the auxiliary blade 7 to push the material in the same direction synchronously, while the choke blade 9 guides the material in the opposite direction, forcing the material to form an upward and downward convection, breaking the single circular motion trend of the material.
[0047] In addition, the outer periphery of the agitator 8 is provided with spiral fins 10 that spiral downwards. The spiral fins 10 are integrally formed with the agitator 8 to avoid material residue caused by splicing gaps. The thickness of the spiral fins 10 is 3-5 mm. This thickness ensures that the spiral fins 10 have sufficient structural strength to resist material impact, while avoiding increasing material flow resistance due to excessive thickness. When the material moves in a circular motion with the main blade plate 4 and the auxiliary blade plate 7, the spiral fins 10 can divert and block the material, further guiding the material to flow along the spiral trajectory and enhancing the local turbulence effect.
[0048] A temperature control probe 13 is detachably connected to the side wall at the top of the reactor 3. The detection end of the temperature control probe 13 passes through the side wall of the reactor 3 and extends into the reactor 3. The detection end of the temperature control probe 13 is located between the rotation space of the main blade plate 4 and the rotation space of the auxiliary blade plate 7. This area is the core stirring zone where the main blade plate 4 and the auxiliary blade plate 7 work together. The material mixing is the most intense and the temperature distribution is the most uniform. This ensures that the temperature data detected by the temperature control probe 13 accurately reflects the true temperature of the material in the reactor 3, providing a basis for adjusting the stirring parameters.
[0049] The main blade plate 4, the auxiliary blade plate 7, and the choke blade plate 9 are all provided with several through holes, which are called turbulence holes 14. The turbulence holes 14 on the main blade plate 4, the auxiliary blade plate 7, and the choke blade plate 9 are arranged in a staggered manner, specifically, adjacent rows of turbulence holes 14 on the same blade plate are not on the same vertical line. This staggered arrangement can change the flow direction of the material when it passes through the turbulence holes 14, avoid flow field overlap, further enhance the turbulence effect, and at the same time reduce the adhesion of material to the surfaces of the main blade plate 4, the auxiliary blade plate 7, and the choke blade plate 9.
[0050] The implementation principle of this application embodiment is as follows:
[0051] After the material to be processed is put into the reactor 3, the motor 2 is started. The motor 2 drives the stirring shaft 1 to rotate, and the stirring shaft 1 synchronously drives the main impeller 4 and the stirring rod 5 at the end of the stirring shaft 1 to rotate. The stirring rod 5 then drives the auxiliary impeller 7 to rotate. Since the main impeller 4 and the auxiliary impeller 7 are inclined in the same direction, they push the material in the same direction, respectively driving the material in the middle and side wall areas of the reactor 3 to flow in the same direction. However, the flow-blocking impeller 9 on the agitator 8 is inclined in the opposite direction to the main impeller 4, forming a reverse guidance for the material between two adjacent main impeller 4 and two adjacent auxiliary impeller 7, forcing some of the material to be stirred, thereby further dividing the flow path of the material, forming an alternating agitation structure of main impeller 4 and auxiliary impeller 7 pushing and flow-blocking impellers, breaking the single circular motion trend of the material.
[0052] During this process, the spiral fins 10 on the outer periphery of the agitator 8 divert and obstruct the material moving in a circular motion, guiding the material to flow briefly along the spiral trajectory, forming local turbulence. At the same time, the staggered turbulence holes 14 on the main impeller plate 4, the auxiliary impeller plate 7, and the flow-blocking impeller plate 9 change the flow direction of the material passing through the turbulence holes 14, further enhancing the turbulence effect and improving the uniformity of material mixing. In addition, the temperature control probe 13 at the top of the reactor 3 monitors the material temperature in the core agitation zone in real time, and the operator can adjust parameters such as the motor speed 2 based on the temperature data.
[0053] Once the materials reach the preset mixing uniformity, stop the motor 2 and transport the pre-mixed materials in the reactor 3 to the homogenizer for subsequent grinding and refining.
[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A stirring device with agitation function, comprising a stirring shaft (1), one end of which is connected to the output shaft of a motor (2), the end of the stirring shaft (1) away from the motor (2) extending into a reaction vessel (3), a main impeller plate (4) evenly arranged on the stirring shaft (1), and a stirring rod (5) near the inner wall of the reaction vessel (3) connected to the end of the stirring shaft (1) away from the motor (2); a scraper plate (6) evenly arranged is movably connected to the side of the stirring rod (5) close to the inner wall of the reaction vessel (3), and a secondary impeller plate (7) evenly arranged is installed on the side of the stirring rod (5) away from the scraper plate (6), characterized in that, Between the rotation space of the main blade plate (4) and the rotation space of the auxiliary blade plate (7), a vertical columnar structure called a stirring rod (8) is provided, and the upper end of the stirring rod (8) is fixed above the reactor (3). The stirring rod (8) is provided with spiral fins (10) that rotate from top to bottom; The agitator (8) is provided with flow-blocking blades (9); Two adjacent flow-blocking blades (9) are arranged in two ways: one is inserted between two adjacent main blades (4), and the other is inserted between two adjacent auxiliary blades (7). The main blade (4) is inclinedly connected to the stirring shaft (1), the auxiliary blade (7) is inclinedly connected to the stirring rod (5), and the flow-blocking blade (9) is inclinedly connected to the agitator (8). The main blade (4) and the auxiliary blade (7) are inclined in the same direction, while the main blade (4) and the flow-blocking blade (9) are inclined in opposite directions, forming an alternating agitation structure.
2. The stirring device with agitation function according to claim 1, characterized in that, At least two bushing supports (11) are provided on the side of the stirring rod (5) near the inner wall of the reactor (3) along the length of the stirring rod (5); The rotating shaft (12) is rotatably installed in the bushing bracket (11), and the scraper (6) is sleeved on the rotating shaft (12); The gap between the scraper (6) on the side away from the rotating shaft (12) and the inner wall of the reactor (3) is less than 3 mm and greater than 0.5 mm.
3. The stirring device with agitation function according to claim 1, characterized in that, A temperature control probe (13) is detachably connected to the side wall at the top of the reactor (3); The detection end of the temperature control probe (13) passes through the side wall of the reactor (3) and extends into the reactor (3), and the detection end of the temperature control probe (13) is located between the rotation space of the main blade plate (4) and the rotation space of the auxiliary blade plate (7).
4. The stirring device with agitation function according to claim 1, characterized in that, The main blade plate (4), the auxiliary blade plate (7) and the flow-blocking blade plate (9) are provided with several through holes, which are called flow-blocking holes (14); The turbulence holes (14) on the main blade plate (4), the auxiliary blade plate (7) and the flow-blocking blade plate (9) are arranged in a staggered manner.
5. The stirring device with agitation function according to claim 1, characterized in that, The spiral fins (10) of the stirring rod (8) are integrally formed on the outer periphery of the stirring rod (8), and the thickness of the spiral fins (10) is 3-5 mm.
6. The stirring device with agitation function according to claim 1, characterized in that, The main blade (4) is inclined to the axis of the stirring shaft (1) at an angle of 30 to 60 degrees, the auxiliary blade (7) is inclined to the axis of the stirring rod (5) at an angle of 30 to 60 degrees, and the flow-blocking blade (9) is inclined to the axis of the agitator (8) at an angle of 20 to 45 degrees.