Intelligent control chemical mixing tank

Abstract

The application belongs to the technical field of intelligent equipment, and particularly relates to an intelligent control chemical stirring tank, which comprises a roller crushing device, and comprises a tank body, a power module, an intelligent control module and an information monitoring module; the application is aimed at the problem of uneven distribution of different chemical raw materials in the vertical direction, a communication pipe is arranged outside the stirring shaft, the communication pipe establishes a relatively closed communication path between the areas close to the top and the bottom in the tank body, the mutual exchange and mixing between the light raw materials on the liquid surface and the heavy raw materials at the bottom of the tank body are accelerated, the condition that the single kind of raw materials in the areas on the liquid surface and at the bottom of the tank body are excessively gathered and difficult to be fully mixed is improved, and the chemical raw materials gathered in different areas are mixed and contacted with each other more uniformly.

Description

Technical Field

[0001] This invention belongs to the field of intelligent equipment technology, specifically an intelligently controlled chemical mixing tank. Background Technology

[0002] Chemical mixing tanks are core containers used in industries such as chemical, pharmaceutical, daily chemical, and food processing for mixing, reacting, blending, and processing materials. Intelligent chemical mixing tanks, belonging to specialized intelligent manufacturing equipment for the chemical industry, are core unit equipment in intelligent factories of process industries. Their main working principle is to uniformly mix various liquids, liquid-solids, and liquid-liquid materials, preventing stratification and sedimentation, and ensuring consistent concentration and composition. Mixing also allows for full contact and renewal of the reaction interface, accelerating the reaction rate and ensuring a more complete reaction. They are commonly used in processes such as synthesis, neutralization, polymerization, and fermentation.

[0003] Chemical mixing tanks are mainly designed for mixing needs in chemical production processes. They can fully mix two or more different raw materials to prepare new chemical raw materials. However, during processing, due to differences in the chemical properties and density of different raw materials, stratification is likely to occur. Raw materials that are not easy to mix tend to accumulate in the top or bottom areas of the tank, resulting in poor mixing efficiency. Furthermore, it is difficult for external processing personnel to grasp the internal mixing situation and make targeted and flexible adjustments. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes an intelligently controlled chemical mixing tank.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention proposes an intelligent control chemical mixing tank, including a tank body, a power module, an intelligent control module, and an information monitoring module. A stirring shaft is provided in the middle part of the tank body. The top of the stirring shaft extends out of the top of the tank body and is connected to the power module. The working end of the monitoring sensor in the information monitoring module is connected to the inside of the tank body to monitor the internal stirring conditions and transmit the monitored data to the intelligent control module. The tank is provided with a feed inlet at the top and a discharge outlet at the bottom, and monitoring sensors of the information monitoring module are evenly arranged on the side wall of the tank. The tank is equipped with a connecting pipe located outside the stirring shaft. The inner wall of the connecting pipe is connected to the outer surface of the stirring shaft, and the connecting pipe connects the top and bottom areas inside the tank. Stirring components are evenly arranged on the outside of the connecting pipe.

[0006] Preferably, an auxiliary shaft is provided at the middle part of the bottom of the tank. The auxiliary shaft is connected to the bottom of the stirring shaft through a coupling, and a guide fan blade is provided on the outer surface of the auxiliary shaft at the part below the bottom opening of the connecting pipe.

[0007] Preferably, a floating plate is slidably disposed on the top of the connecting pipe, and the floating plate forms a ring-shaped structure around the top opening of the connecting pipe; The inner ring of the floating plate is provided with a limiting ring, which is nested on the outer surface of the connecting pipe, and the limiting slider on the outer surface of the connecting pipe is embedded in the limiting groove on the inner ring surface of the limiting ring. The bottom of the floating plate is uniformly provided with flow guides, which extend to the upper surface of the floating plate. The upper surface of the floating plate is a conical surface, and the part of the upper surface of the floating plate away from the top opening of the connecting pipe is higher than the part near the top opening of the connecting pipe.

[0008] Preferably, a guide plate is provided on the lower surface of the floating plate at the location of the guide port opening. The guide plate is inclined to guide the contacting fluid material to flow into the guide port.

[0009] Preferably, a flow guide plate is provided on the outer surface of the limiting ring, and the flow guide plate is inclined to guide the contacting fluid substance to the flow port.

[0010] Preferably, the upper surface of the floating plate is uniformly provided with annular limiting protrusions. The cross-section of the limiting protrusions is triangular, and the side of the limiting protrusions near the top opening of the connecting pipe is a vertical surface, while the side away from the top opening of the connecting pipe is an inclined surface.

[0011] Preferably, the inner wall of the connecting pipe is uniformly provided with spiral-shaped flow-guiding protrusions.

[0012] Preferably, the bottom opening of the connecting pipe is funnel-shaped, and an annular limiting net is provided between the outer ring of the bottom of the connecting pipe and the bottom of the tank. The fixing ring at the top of the limiting net is rotatably connected to the bottom of the connecting pipe, and the guide fan blades are located in the area surrounded by the limiting net.

[0013] Preferably, the bottom of the limiting net is provided with a circular closed plate, and the auxiliary shaft slides through the middle part of the closed plate.

[0014] Preferably, the limiting net is made of elastic material, and the side wall of the limiting net has a continuously curved structure. The sealing plate is connected to the propulsion device installed at the bottom of the tank.

[0015] The beneficial effects of this invention are as follows: This invention discloses an intelligent controlled chemical mixing tank. Addressing the problem of uneven distribution of different chemical raw materials in the vertical direction, this application employs a connecting pipe on the outside of the stirring shaft. This connecting pipe establishes a relatively closed connection path between the top and bottom areas inside the tank. As the chemical raw materials flow within the tank, materials located near the liquid surface and bottom can avoid interference from materials in other areas and smoothly flow and exchange through the connecting pipe. During this process, the less dense and concentrated chemical raw materials at the liquid surface and the more dense and concentrated chemical raw materials at the bottom of the tank exchange and mix, improving the situation where a single type of raw material is too concentrated in the liquid surface and bottom areas, making it difficult to mix thoroughly. This results in more uniform mixing of chemical raw materials concentrated in different areas. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 yes Figure 2 A magnified view of a section at point B in the middle; Figure 5 This is a schematic diagram of the connection between the connecting pipe and the float plate in this invention.

[0018] In the diagram: Tank 1, stirring shaft 11, feed inlet 12, discharge outlet 13, monitoring sensor 14, connecting pipe 15, stirring component 151, limiting slider 152, guide protrusion 153, auxiliary shaft 2, guide fan blade 21, floating plate 3, limiting ring 31, limiting groove 311, diversion plate 312, guide port 32, guide plate 321, limiting protrusion 33, limiting net 4, fixing ring 41, sealing plate 42, propulsion device 43. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: As shown in the attached diagram of the instruction manual. Figures 1-5As shown, in order to meet the stirring requirements in the chemical production process, it is necessary to fully mix two or more different raw materials together to prepare new chemical raw materials. However, due to the differences in chemical properties, density, etc. of different raw materials, stratification is likely to occur during the processing. Raw materials that are not easy to mix with each other are likely to accumulate in the top or bottom area inside tank 1, resulting in poor mixing efficiency. Furthermore, it is difficult for external processing personnel to grasp the internal mixing situation and make targeted and flexible adjustments. Therefore, in order to overcome the above problems, this application proposes a tank body 1, a power module, an intelligent control module, and an information monitoring module. A stirring shaft 11 is provided in the middle part of the tank body 1, and a heating component is provided on the side wall of the tank body 1. The heating component here can be a conventional heating device configured in an existing stirring tank or reaction vessel. The top of the stirring shaft 11 extends out of the top of the tank 1 and is connected to the power module. The power module includes a motor, a reducer and a coupling, all of which are arranged on the top of the tank 1 and connected to the top of the stirring shaft 11. The working end of the monitoring sensor 14 in the information monitoring module is connected to the inside of the tank 1 to monitor the internal stirring conditions and transmit the collected data to the intelligent control module. The tank body 1 is provided with a feed inlet 12 at the top and a discharge outlet 13 at the bottom. Monitoring sensors 14 of the information monitoring module are evenly arranged on the side wall of the tank body 1. Inside the tank 1, a connecting pipe 15 is provided outside the stirring shaft 11. The inner wall of the connecting pipe 15 is connected to the outer surface of the stirring shaft 11. The connecting pipe 15 connects the top and bottom areas inside the tank 1. Stirring elements 151 are evenly arranged on the outer surface of the connecting pipe 15. The stirring elements 151 can be existing stirring rods or stirring blades, etc., and are evenly arranged on the outer surface of the connecting pipe 15. Specific workflow: Multiple chemical raw materials are fed into the tank 1 through the feed port 12 at the top of the tank 1, allowing them to enter the tank 1 and mix with each other. The stirring shaft 11 is started to drive the stirring component 151 to rotate, so that the chemical raw materials inside the tank 1 collide and mix with each other under the stirring action, thereby improving the stirring efficiency. At the same time, according to the stirring needs, the heating component on the inner wall of the tank 1 can be started to heat the chemical raw materials inside the tank 1, so that the internal environment reaches the predetermined temperature and promotes the mixing of the chemical raw materials. Furthermore, to better monitor the mixing of chemical raw materials inside tank 1, intelligent monitoring sensors 14 are evenly distributed in groups at different vertical heights inside tank 1. This allows for the effective collection of relevant data at different vertical heights inside tank 1 during the mixing process. The monitoring sensors 14 include temperature sensors, pH sensors, online concentration sensors, and online viscosity sensors. They periodically collect data on the temperature, pH value, and mixing viscosity of the chemical raw materials inside tank 1 at different times. The collected data is then analyzed using a configured microprocessor or directly transmitted to the intelligent analysis computer in the intelligent control module. This analysis determines whether there are temperature differences or mixing differences in different areas inside tank 1, and whether there is accumulation of different chemical raw materials in the liquid surface area and the bottom area, making it difficult to mix them fully. After timely sensing of the internal conditions of tank 1 and identifying the problem of insufficient mixing, the power module is activated by the intelligent controller to enhance the mixing effect. At the same time, to address the problem of uneven distribution of different chemical raw materials in the vertical direction, a connecting pipe 15 is set on the outside of the stirring shaft 11. The connecting pipe 15 establishes a relatively closed connecting path between the areas near the top and bottom of the tank 1. As the chemical raw materials inside the tank 1 flow to each other, the light raw materials located near the liquid surface area and the heavy raw materials located near the bottom of the tank 1 can flow and exchange smoothly through the connecting pipe 15 without the interference of raw materials in other areas. In this process, the chemical raw materials with lower density and concentrated in the liquid surface area and the chemical raw materials with higher density and concentrated in the bottom of the tank 1 exchange and mix with each other, improving the situation where single types of raw materials are too concentrated in the liquid surface area and the bottom area of ​​the tank 1 and are difficult to mix fully. This makes the chemical raw materials concentrated in different areas mix more evenly and eliminates the problem of uneven distribution and insufficient combination of different types of chemical raw materials in different areas inside the tank 1.

[0021] Example 2: Based on Embodiment 1, an auxiliary shaft 2 is provided at the middle part of the bottom of the tank 1. The auxiliary shaft 2 is connected to the bottom of the stirring shaft 11 through a coupling, so that the auxiliary shaft 2 and the stirring shaft 11 can rotate relative to each other. The bottom of the auxiliary shaft 2 extends out of the bottom of the tank 1 and is connected to the drive device deployed on the lower side of the bottom of the tank 1. A guide fan blade 21 is provided on the outer surface of the auxiliary shaft 2 at the part below the bottom opening of the connecting pipe 15. Specific workflow: Based on the specific workflow in Example 1, in order to improve the exchange efficiency between the liquid surface area and the bottom area inside the tank 1, the intelligent controller can start the drive device connected to the auxiliary shaft 2 at the bottom of the tank 1 as needed, thereby driving the auxiliary shaft 2 to rotate. The rotating auxiliary shaft 2 drives the guide fan blade 21 on the lower side of the bottom opening of the connecting pipe 15 to rotate, and forms a downward flow trend at the bottom opening, causing the raw material in the internal area of ​​the connecting pipe 15 to flow downward and flow out from the bottom opening to mix into the bottom area. In this way, a negative pressure effect is generated inside the connecting pipe 15, which accelerates the light raw material near the top opening of the connecting pipe 15 to pass through the connecting pipe 15 and flow out from the bottom opening to impact the heavy raw material in the bottom area, thus promoting the mixing of light and heavy raw materials. Furthermore, with the continuous action of the guide fan blades 21, the light raw materials flow downward from the connecting pipe 15 and mix with the heavy raw materials in the bottom area of ​​the tank 1 before flowing upward. On the one hand, this accelerates the exchange of raw materials between different areas in the vertical direction outside the connecting pipe 15. On the other hand, the density of the mixed raw materials decreases due to the continuous mixing of light raw materials in the area where the heavy raw materials were originally concentrated at the bottom of the tank 1. Under the impact, the heavy raw materials accumulated at the bottom move upward and mix with the raw materials on the upper side. This reduces the situation where the light raw materials on the upper side are difficult to mix downward due to the continuous accumulation of heavy raw materials, which affects the processing efficiency of chemical raw materials. In addition, the continuous flushing below the bottom area of ​​the tank 1 promotes the flow of raw materials in the bottom area and also reduces the scaling in the bottom area of ​​the tank 1. Example 3: Based on Embodiment 2, a floating plate 3 is slidably provided on the top of the connecting pipe 15. The floating plate 3 forms a ring structure around the top opening of the connecting pipe 15. The material used for the floating plate 3 does not react with chemical raw materials and its density is less than that of the chemical raw materials normally added. A limiting ring 31 is provided in the inner ring of the floating plate 3. The limiting ring 31 is nested on the outer surface of the connecting pipe 15, and the limiting slider 152 on the outer surface of the connecting pipe 15 is embedded in the limiting groove 311 on the inner ring surface of the limiting ring 31. The bottom of the floating plate 3 is uniformly provided with guide ports 32, which extend to the upper surface of the floating plate 3. The upper surface of the floating plate 3 is a conical surface, and the part of the upper surface of the floating plate 3 away from the top opening of the connecting pipe 15 is higher than the part near the top opening of the connecting pipe 15. The lower surface of the floating plate 3 is provided with a guide plate 321 at the opening of the guide port 32. The guide plate 321 is inclined to guide the contacting fluid substance to flow to the guide port 32. The outer surface of the limiting ring 31 is provided with a guide plate 312, which is inclined to guide the contacting fluid substance to flow to the guide port 32.

[0022] Specific workflow: Based on the specific workflow in Example 2, because the mixing of light and heavy raw materials may cause a decrease in volume and a drop in liquid level during the stirring process, and new liquid or solid raw materials, additives, etc. may need to be added during the stirring and preparation process, resulting in a rise in liquid level; In response to the above-mentioned changes in liquid level during the stirring process, in order to ensure the smooth exchange and mixing of raw materials in the liquid level area and the bottom area of ​​tank 1, a floating plate 3 is set at the top of the connecting pipe 15. The limiting ring 31 in the middle of the floating plate 3 is connected to the opening at the top of the connecting pipe 15. Because the density of the floating plate 3 is less than that of the raw material, it is normally located at the liquid level of tank 1 and floats up and down with the change of liquid level, causing the opening of the limiting ring 31 to move synchronously, so that the vertical height of the top opening of the connecting pipe 15 can flexibly adapt to the liquid level height; As the stirring shaft 11 drives the connecting pipe 15 to rotate, the limiting ring 31 located at the top opening of the connecting pipe 15 rotates synchronously. The vertical sliding connection between the limiting ring 31 and the connecting pipe 15 allows the limiting ring 31 to drive the floating plate 3 to adjust its vertical position according to the liquid level. During the rotation of the rotating limiting ring 31, the guide plate 312 on the outside stirs the light raw material in the liquid surface area and pushes it to flow towards the floating plate 3. The guide plate 321 is provided on the lower side of the guide port 32 on the floating plate 3. The inclined guide plate 321 can guide the contacting light raw material to flow upward and pass through the guide port 32 into the upper side of the floating plate 3 as the floating plate 3 rotates. Then, this part of the light raw material can flow along the upper surface of the floating plate 3 to the top opening of the connecting pipe 15 in the middle position. In this way, the light raw material in the liquid surface area is continuously and stably introduced into the connecting pipe 15, realizing the exchange flow between the liquid surface area and the bottom area. If new raw materials are added later, they may be intercepted by the light raw materials on the liquid surface, making it difficult to mix them fully into the overall raw materials. Therefore, the new raw materials can be directly introduced into the upper side of the floating plate 3 from the top feed port 12 of the tank 1. The light raw materials flowing upward from the guide port 32 are mixed with the new raw materials and then flow into the connecting pipe 15. The mixture then flows out from the bottom opening of the connecting pipe and diffuses upward from the bottom area, promoting the full mixing and diffusion of the newly added raw materials into the overall mixed raw materials, thereby improving the mixing efficiency of the raw materials.

[0023] Example 4: Based on Embodiment 3, the upper surface of the floating plate 3 is uniformly provided with annular limiting protrusions 33. The cross-section of the limiting protrusions 33 is triangular, and the side of the limiting protrusions 33 near the top opening of the connecting pipe 15 is a vertical surface, while the side away from the top opening of the connecting pipe 15 is an inclined surface.

[0024] Specific workflow: Based on the specific workflow in Example 3, the evenly distributed annular limiting protrusions 33 allow the light raw material flowing upward from the guide port 32 to flow along the gaps of the limiting protrusions 33. This allows the upward-flowing light raw material to fully wash and cover the entire upper surface of the floating plate 3, ensuring that the newly added raw material is in full contact with the fed light raw material. Even if the new raw material is a solid additive, it can be mixed into the light raw material under the continuous annular flow washing action. The surface of the limiting protrusion 33 near the top opening of the connecting pipe 15 is inclined, which allows the light raw material to flow towards the top opening of the connecting pipe 15 near the center while flowing in annularly. After mixing with the new raw material, it converges into the connecting pipe 15 and flows downward, and then diffuses upward from the bottom of the tank 1, achieving full mixing of the chemical raw materials.

[0025] Furthermore, the inner wall of the connecting pipe 15 is uniformly provided with spiral-shaped guide protrusions 153. When the light raw material and the newly added raw material enter the connecting pipe 15, the mixed material is guided by the spiral-shaped guide protrusions 153, causing the mixed material to flow downward in a spiral inside the connecting pipe 15. During this process, the different components in the mixed material impact and contact each other, and the mixing is more thorough, which promotes the mixing efficiency between different raw materials.

[0026] Example 5: Based on Embodiment 4, the bottom opening of the connecting pipe 15 is funnel-shaped, and an annular limiting net 4 is provided between the outer ring of the bottom of the connecting pipe 15 and the bottom of the tank 1. The fixing ring 41 at the top of the limiting net 4 is rotatably connected to the bottom of the connecting pipe 15. To prevent the fixing ring 41 from rotating due to friction as the connecting pipe 15 rotates, causing the limiting net 4 to twist, a limiting rod can be provided at the bottom of the fixing ring 41 and vertically slidably embedded into the limiting hole at the bottom of the tank 1, thereby restricting the fixing ring 41 so that it can only move vertically and cannot rotate. Alternatively, a fixing rope can be provided to connect the fixing ring 4 and the inner wall of the bottom of the tank 1 to restrict its rotation. The guide fan blade 21 is located in the area surrounded by the limiting net 4. The bottom of the limiting net 4 is provided with a circular closing plate 42, and the auxiliary shaft 2 slides through the middle part of the closing plate 42. The limiting net 4 is made of elastic material, and the side wall of the limiting net 4 has a continuous curved structure. The side wall of the limiting net 4 can be provided with an elastic continuous curved skeleton along the vertical direction. This can further limit the bending and folding deformation of the limiting net 4 in the vertical direction, and prevent it from rotating and twisting due to the friction of the connecting pipe 15. The closing plate 42 is connected to the propulsion device 43 provided at the bottom of the tank 1. The propulsion device 43 can be a miniature electric telescopic device. Specific workflow: Based on the specific workflow in Example 4, for the presence of insoluble solid components in the mixed raw materials, in order to improve their dissolution efficiency, a limiting net 4 is set at the bottom opening of the connecting pipe 15 to surround the bottom opening of the connecting pipe 15; in this way, as the raw materials on the liquid surface exchange flow with the raw materials at the bottom of the tank 1, the raw materials inside the tank 1 circulate. During this process, the insoluble parts of the raw materials that have not yet dissolved into the liquid raw materials are intercepted by the limiting net 4 when they flow out from the bottom opening of the connecting pipe 15. The mesh size of the limiting net 4 is set according to the particle size of the solid raw materials, so that the insoluble solid parts are intercepted in the area surrounded by the limiting net 4. Furthermore, the guide fan blades 21 on the auxiliary shaft 2 are located in the surrounding area and concentrate the stirring of the solid insoluble raw materials enriched in the surrounding area. At the same time, they are continuously impacted by the liquid raw materials flowing out from the bottom opening of the upper connecting pipe 15. Under the combined action of such multiple stirring and impacts, the dissolution of the raw materials enriched in the surrounding area of ​​the limiting net 4 is accelerated. Furthermore, the closing plate 42 located at the bottom of the limiting net 4 acts as a sealing and limiting device for the bottom of the area surrounded by the limiting net 4. The propulsion device 43 can be activated to drive the closing plate 42 to move vertically back and forth. Without contacting or colliding with the guide fan blade 21, the space inside the area surrounded by the limiting net 4 is changed, causing a change in the water pressure in the area. The squeezing and impact effect generated by the change in water pressure further accelerates the decomposition of the insoluble solids, allowing them to dissolve into the liquid raw materials more quickly. This reduces the precipitation of solid particles at the bottom of the tank 1 and improves the mixing efficiency of the chemical raw materials.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart-controlled chemical mixing tank, comprising a tank body (1), a power module, a smart control module, and an information monitoring module, characterized in that: A stirring shaft (11) is provided in the middle part of the tank (1), and a heating component is provided on the side wall of the tank (1). The top of the stirring shaft (11) extends out of the top of the tank (1) and is connected to the power module. The working end of the monitoring sensor (14) in the information monitoring module is connected to the inside of the tank (1) to monitor the stirring condition inside and transmit the data collected by the monitoring to the intelligent control module. The tank (1) has a feed inlet (12) at the top and a discharge outlet (13) at the bottom. Monitoring sensors (14) of the information monitoring module are evenly arranged on the side wall of the tank (1). Inside the tank (1), a connecting pipe (15) is provided outside the stirring shaft (11). The inner wall of the connecting pipe (15) is connected to the outer surface of the stirring shaft (11), and the connecting pipe (15) connects the top area and the bottom area inside the tank (1). Stirring elements (151) are evenly arranged outside the connecting pipe (15). A floating plate (3) is slidably provided on the top of the connecting pipe (15), and the floating plate (3) presents a ring-shaped structure around the top opening of the connecting pipe (15); The inner ring of the floating plate (3) is provided with a limiting ring (31), the limiting ring (31) is nested on the outer surface of the connecting pipe (15), and the limiting slider (152) on the outer surface of the connecting pipe (15) is embedded in the limiting groove (311) on the inner ring surface of the limiting ring (31). The bottom of the floating plate (3) is uniformly provided with guide ports (32), the guide ports (32) extend to the upper surface of the floating plate (3), and the upper surface of the floating plate (3) is a conical surface. The part of the upper surface of the floating plate (3) away from the top opening of the connecting pipe (15) is higher than the part near the top opening of the connecting pipe (15). The lower surface of the floating plate (3) is provided with a guide plate (321) at the opening of the guide port (32). The guide plate (321) is inclined to guide the fluid material in contact to flow to the guide port (32). The outer surface of the limiting ring (31) is provided with a flow guide plate (312), which is inclined to guide the fluid material in contact to flow into the flow guide port (32); The floating plate (3) has a ring-shaped limiting protrusion (33) evenly arranged on its upper surface. The limiting protrusion (33) has a triangular cross section. The side of the limiting protrusion (33) near the top opening of the connecting pipe (15) is a vertical surface, and the side away from the top opening of the connecting pipe (15) is an inclined surface.

2. The intelligently controlled chemical mixing tank according to claim 1, characterized in that: An auxiliary shaft (2) is provided at the middle part of the bottom of the tank (1). The auxiliary shaft (2) is connected to the bottom of the stirring shaft (11) through a coupling. A guide fan (21) is provided on the outer surface of the auxiliary shaft (2) at the part below the bottom opening of the connecting pipe (15).

3. The intelligently controlled chemical mixing tank according to claim 2, characterized in that: The inner wall of the connecting pipe (15) is uniformly provided with spiral-shaped flow guiding protrusions (153).

4. The intelligently controlled chemical mixing tank according to claim 3, characterized in that: The bottom opening of the connecting pipe (15) is trumpet-shaped, and an annular limiting net (4) is provided between the outer ring of the bottom of the connecting pipe (15) and the bottom of the tank (1). The fixing ring (41) at the top of the limiting net (4) is rotatably connected to the bottom of the connecting pipe (15), and the guide fan blade (21) is located in the area surrounded by the limiting net (4).

5. The intelligently controlled chemical mixing tank according to claim 4, characterized in that: The bottom of the limiting net (4) is provided with a circular closed plate (42), and the auxiliary shaft (2) slides through the middle part of the closed plate (42).

6. The intelligently controlled chemical mixing tank according to claim 5, characterized in that: The limiting net (4) is made of elastic material, and the side wall cross section of the limiting net (4) is a continuous curved structure. The closing plate (42) is connected to the propulsion device (43) provided at the bottom of the tank (1).

Images