A high efficiency mixing device for the production of a gel dispersion

Abstract

This invention relates to the field of mixing equipment technology, and more particularly to a high-efficiency mixing device for the production of gel dispersions. The high-efficiency mixing device for gel dispersion production includes a mixing tank and a feeding mechanism for conveying materials to the mixing tank. It also includes an automatic adjustment mechanism installed on the mixing tank, which automatically adjusts the shear force according to the viscosity of the mixture to adapt to the mixing of gel dispersions of different viscosities. The high-efficiency mixing device for gel dispersion production provided by this invention automatically adjusts the deflection angle of the mixing blades in real time by following the dynamic changes in the viscosity of the material during the mixing process, flexibly changing the magnitude of the mixing shear force. This adapts to the material state at different stages of the gel dispersion, effectively avoiding problems such as splashing during mixing of low-viscosity materials, incomplete mixing of high-viscosity materials, and material agglomeration, significantly improving the overall uniformity of material mixing and ensuring stable quality of the gel dispersion.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, and in particular to a high-efficiency mixing equipment for the production of gel dispersions. Background Technology

[0002] Gel dispersions are widely used in many industries such as petrochemicals and daily chemicals. Mixing and homogenization are the core processes in their production, and the effectiveness of the mixing directly affects the uniformity and performance of the finished product. Currently, conventional gel dispersion mixing equipment on the market has a rigid mixing structure, with the blade deflection angle not being flexibly adjustable, and the mixing shear force remaining constant. However, the viscosity of gel dispersions continuously changes dynamically throughout the mixing reaction. A constant shear force is difficult to match the material characteristics at different stages. Low-viscosity materials are prone to splashing during mixing, resulting in raw material loss, while high-viscosity materials cannot be fully sheared and mixed, leading to poor material blending. Furthermore, fixed mixing structures are difficult to accommodate the processing of various gel dispersion formulations and specifications, easily resulting in inconsistent batch quality of finished products.

[0003] During the preparation of gel dispersions, the viscosity of the material fluctuates dynamically with the reaction progress, temperature changes, and the degree of component integration. The shear force required for stirring varies significantly at different viscosity stages. However, in existing gel dispersion stirring equipment, the stirring blades are mostly designed with a fixed angle, resulting in a constant shear force that cannot be adaptively adjusted according to real-time changes in material viscosity. This leads to a constant mismatch between the stirring system and the material state. When the material is at a low viscosity stage, the fixed high shear force easily causes material splashing. When the material viscosity increases, the constant low shear force is insufficient to overcome the internal viscous resistance of the material, failing to achieve effective shearing and dispersion. This results in uneven mixing and frequent agglomeration, severely affecting the dispersion uniformity and product performance stability of the gel dispersion. Furthermore, due to the lack of real-time monitoring of material viscosity and automatic shear force adjustment mechanisms, the equipment cannot be compatible with the production of gel dispersions with different formulations and viscosity ranges. Frequent manual shutdowns are required to adjust stirring parameters, which is not only cumbersome and inefficient but also prone to batch-to-batch variations due to human error, making it difficult to meet the precision and automation requirements of modern continuous production.

[0004] Therefore, it is necessary to provide a new, high-efficiency mixing device for the production of gel dispersions to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a high-efficiency mixing device for the production of gel dispersions.

[0006] The present invention provides a high-efficiency mixing device for the production of gel dispersions, comprising a mixing tank and a feeding mechanism for conveying materials to the mixing tank. The bottom of the mixing tank is equipped with five sets of explosion-proof heaters circumferentially distributed at equal intervals. The inner wall of the mixing tank is provided with a jacket, the interior of which is filled with a heat-conducting medium. The top of the mixing tank is hinged to a cover plate. The device also includes: An automatic adjustment mechanism is installed on the mixing tank to automatically adjust the shear force according to the viscosity of the mixture to adapt to the mixing of gel dispersions of different viscosities; The automatic adjustment mechanism includes a drive motor mounted on the top of the mixing tank. The output shaft of the drive motor is connected to a torque sensor via a coupling. The torque sensor is fixedly mounted on the top end face of the mixing tank. The bottom of the torque sensor is connected to a stirring shaft via a coupling. Two sets of hollow columns are fixedly mounted in the middle of the stirring shaft. A coaxially arranged hollow rotating shaft is rotatably connected inside the stirring shaft. The bottom of the hollow rotating shaft extends into the interior of the hollow columns and is fixedly mounted with a first helical gear. Four sets of rotating shafts are rotatably connected to the outer circumference of the hollow columns. A stirring blade is fixed to one end of each rotating shaft located inside the hollow columns. A second helical gear is fixed at one end, and the first helical gear meshes with the second helical gear. A sealing ring is installed between the rotating shaft and the hollow column. A first movable shaft is provided inside the hollow rotating shaft. The bottom end of the first movable shaft passes through the bottom of the stirring shaft and is slidably connected to the stirring shaft. A slider is fixedly installed on the outer periphery of the top of the first movable shaft. Multiple annularly distributed and spirally structured sliding grooves are opened on the inner side of the hollow rotating shaft. The slider is inserted into the corresponding sliding groove and is slidably connected to the sliding groove. A second electric push rod is installed at the bottom of the stirring tank. The telescopic end of the second electric push rod is rotatably connected to the connecting end of the first movable shaft. A fixed ring is installed at the bottom of the stirring shaft. Four sets of hinge seats are provided at the bottom of the fixed ring, and a rotating frame is mounted on each hinge seat. A rotating ring is mounted on the outer surface of the first movable shaft. Four rotating support rods are evenly arranged circumferentially on the outer side of the movable ring. The other end of each support rod is rotatably connected to the center of the rotating frame. A second electric push rod pushes the axial sliding of the first movable shaft, causing the movable ring to move axially, which in turn drives the support rods to swing, making the rotating frame swing around the fixed ring. This allows for adjustment of the opening and closing angle of the rotating frame for scraping material from different areas at the bottom of the mixing tank. A cavity is provided inside the rotating frame. A return spring and a second movable shaft are fitted inside the cavity. The second movable shaft is sealed to the cavity by a rubber ring. A scraper is fixed to the bottom of the second movable shaft. The return spring provides continuous axial elastic force to the second movable shaft, ensuring that the scraper remains tightly fitted to the bottom of the mixing tank to prevent material residue.

[0007] Preferably, the scraper is made of polyurethane rubber material. Under the elastic force of the return spring, the scraper is pressed and adhered to the bottom of the inner cavity of the mixing tank, and the scraping surface of the scraper is arc-shaped and adapted to the curvature of the inner wall of the bottom of the mixing tank.

[0008] Preferably, the rotating shaft and the hollow column are sealed by a sealing ring, and the inner side of the sealing ring is provided with a dustproof lip to prevent material particles from entering the mating gap between the rotating shaft and the hollow column.

[0009] Preferably, the feeding mechanism includes a base, a gear pump, a storage tank, a feed hopper, and an ejector. The top of the base is provided with four sets of feed inlets, which are connected to the inside of the storage tank. The bottom of the base is fixed with four sets of storage tanks, which correspond one-to-one with the feed inlets and are located directly below the feed inlets. The feed hopper is provided directly below the storage tanks, and the outlet of the feed hopper is connected to the suction port of the ejector. The gear pump is fixed to one side of the base, and its discharge port is connected to the feed end of the ejector. The feed end of the gear pump is connected to an external high-pressure fluid supply pipe to provide the high-pressure working fluid required for driving the ejector.

[0010] Preferably, a first electric push rod is installed on both sides of the storage box. A baffle is fixed to the telescopic end of the first electric push rod. The baffle is horizontally set at the bottom outlet of the storage box and forms a detachable sealing structure. The opening and closing degree of the baffle is adjusted by telescoping the first electric push rod, thereby controlling the opening and closing state of the outlet and the amount of material discharged at one time. The bottom outlet of the storage box is directly opposite the feed end of the feed hopper, so that the material can fall directly into the feed hopper.

[0011] Preferably, the discharge port of the jet injector is connected to a four-way pipe via a pipeline, and the other three sets of output ports of the four-way pipe are all connected to a conveying pipe. The conveying pipe is evenly distributed along the circumference of the mixing tank and is connected to the mixing tank. The opening and closing state of the conveying pipe is independently controlled by a manual or electric ball valve.

[0012] Preferably, the mixing tank is equipped with a level gauge, an explosion-proof thermometer, and a pressure gauge, which are used to monitor the liquid level of the material in the tank, the temperature of the heat transfer medium in the jacket or the material in the tank, and the pressure in the jacket in real time. The torque sensor is electrically connected to the second electric push rod and can automatically adjust the extension and retraction of the second electric push rod according to the detected stirring torque signal to achieve closed-loop control of the shear force.

[0013] Compared with related technologies, the high-efficiency stirring equipment for the production of gel dispersions provided by this invention has the following advantages: 1. This invention automatically adjusts the deflection angle of the stirring blades in real time by following the dynamic changes in the viscosity of the material during the stirring process, and flexibly changes the magnitude of the stirring shear force. It can adapt to the material state at different stages of the gel dispersion, effectively avoid problems such as splashing of low-viscosity materials, incomplete stirring of high-viscosity materials, and material agglomeration, and greatly improve the overall uniformity of material stirring, ensuring the stable quality of the gel dispersion. 2. This invention is equipped with multiple independent storage tanks and a jet feeding structure, which can realize the separate storage of various raw materials and precise quantitative discharge. The materials can be initially mixed during the feeding stage and then evenly fed into the mixing tank through multiple pipelines, avoiding local material accumulation, simplifying the production batching process, and effectively improving the overall production and processing efficiency of gel dispersion. 3. The invention features an adaptive scraper at the bottom, which can thoroughly clean residual materials from the inner wall of the mixing tank, reducing raw material waste. Each rotating part is equipped with a sealing and protective structure. Combined with real-time tank monitoring and constant temperature control components, this not only reduces component wear and failure probability and extends equipment lifespan, but also maintains safe and stable production conditions, reduces daily maintenance costs, and solves the problems of dead corners and colloidal residues in the mixing process. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the high-efficiency stirring equipment for producing gel dispersions provided by the present invention; Figure 2 This is a schematic diagram of the disassembly structure of the base of the present invention; Figure 3 This is a partial cross-sectional view of the mixing tank of the present invention; Figure 4 This is a schematic diagram of the disassembly structure of the stirring structure in this invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A; Figure 6 For the present invention Figure 4 A partially enlarged structural diagram; Figure 7 This is a partial cross-sectional view of the top of the stirring shaft of the present invention; Figure 8 This is a schematic diagram of the disassembly structure of the hollow rotating shaft and the first movable shaft of the present invention.

[0015] Labels in the diagram: 1. Mixing tank; 2. Base; 3. Gear pump; 4. Feed inlet; 5. Storage tank; 6. First electric push rod; 7. Baffle; 8. Ejector; 9. Feed hopper; 10. Four-way pipe; 11. Conveying pipe; 12. Explosion-proof heater; 13. Cover plate; 14. Drive motor; 15. Torque sensor; 16. Mixing shaft; 17. Hollow column; 18. Hollow rotating shaft; 19. First helical gear; 20. Rotating shaft; 21. Mixing blade; 22. Second helical gear; 23. Sealing ring; 24. First movable shaft; 25. Slider; 26. Slide groove; 27. Second electric push rod; 28. Fixed ring; 29. ​​Rotating frame; 30. Movable ring; 31. Support rod; 32. Return spring; 33. Second movable shaft; 34. Scraper; 35. Cavity. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0018] Please see Figures 1 to 8 This invention provides a high-efficiency mixing device for producing gel dispersions. The high-efficiency mixing device for producing gel dispersions includes a mixing tank 1 and a feeding mechanism for conveying materials to the mixing tank 1. The mixing tank 1 is equipped with an automatic adjustment mechanism, which automatically adjusts the shear force according to the viscosity of the mixture to adapt to the mixing of gel dispersions of different viscosities. Five sets of explosion-proof heaters 12 are circumferentially and equidistantly distributed at the bottom of the mixing tank 1. The inner wall of the mixing tank 1 is provided with a jacket, and the interior of the jacket is filled with a heat-conducting medium. The explosion-proof heaters 12 and the jacket of the mixing tank 1 ensure that during the mixing operation, the explosion-proof heaters 12, together with the heat-conducting medium in the jacket, stabilize the material reaction temperature.

[0019] In an embodiment of the present invention, please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8The automatic adjustment mechanism includes a drive motor 14 installed on the top of the mixing tank 1. The output shaft of the drive motor 14 is connected to a torque sensor 15 via a coupling. The torque sensor 15 is fixedly installed on the top end face of the mixing tank 1. The bottom of the torque sensor 15 is connected to a stirring shaft 16 via a coupling. Two sets of hollow columns 17 are fixedly installed in the middle of the stirring shaft 16. A coaxially arranged hollow rotating shaft 18 is rotatably connected inside the stirring shaft 16. The bottom of the hollow rotating shaft 18 extends into the interior of the hollow column 17 and is fixedly installed with a first helical gear 19. Four sets of rotating shafts 20 are rotatably connected to the outer periphery of the hollow column 17. A stirring blade 21 is fixed to one end of the rotating shaft 20 facing outward. A second helical gear 22 is fixed to one end of the rotating shaft 20 located inside the hollow column 17. The first helical gear 19 and the second helical gear 22 are meshed and connected. A sealing ring 23 is installed between the rotating shaft 20 and the hollow column 17. The hollow rotating shaft 18 has a first movable shaft 24 inside. The bottom end of the first movable shaft 24 passes through the bottom of the stirring shaft 16 and is slidably connected to the stirring shaft 16. A slider 25 is fixedly installed on the outer periphery of the top of the first movable shaft 24. Multiple annularly distributed and spirally structured grooves 26 are opened on the inner side of the hollow rotating shaft 18. The slider 25 is inserted into the corresponding groove 26 and is slidably connected to the groove 26. A second electric push rod 27 is installed at the bottom of the mixing tank 1. The telescopic end of the second electric push rod 27 is rotatably connected to the connecting end of the first movable shaft 24.

[0020] In this application, a feeding mechanism is used to transport materials into a mixing tank 1. The drive motor 14 is turned on to drive the mixing shaft 16 and the mixing blades 21 to rotate and mix the materials. During the mixing process, the material's form changes continuously, and the overall viscosity fluctuates dynamically. The torque sensor 15 collects the mixing resistance data in real time and calculates the real-time viscosity of the material, transmitting the signal to the control system. The system issues an adjustment command in real time based on the viscosity change, controlling the extension and retraction of the second electric push rod 27 to push the first movable shaft 24 to move axially. With the help of the cooperation of the slider 25 and the spiral groove 26, the linear motion is converted into the rotation of the hollow rotating shaft 18. Then, through the meshing transmission of the first helical gear 19 and the second helical gear 22, the deflection angle of the mixing blades 21 is changed synchronously, and the mixing shear force is adjusted in real time to adapt to the mixing requirements of the material viscosity at different stages.

[0021] In this embodiment, the spiral groove 26 and the slider 25 adopt a high-precision matching design, which can efficiently convert the axial linear motion of the first movable shaft 24 into the rotational motion of the hollow rotating shaft 18, resulting in excellent transmission efficiency. The transmission design of the first helical gear 19 and the second helical gear 22 improves the sensitivity of the deflection adjustment of the stirring blade 21, enabling the stirring blade 21 to achieve stepless deflection and thus achieve a wide range of shear force adjustment. The torque sensor 15 captures the resistance changes during the stirring process in real time and transmits feedback data to the control system, providing a precise basis for the extension and retraction adjustment of the second electric push rod 27, ensuring that the shear force and the material viscosity are always dynamically matched, thus effectively avoiding the problems of low-viscosity material splashing or high-viscosity material insufficient stirring.

[0022] In an optional embodiment, please refer to Figure 5 , Figure 6 and Figure 8 A fixed ring 28 is installed at the bottom of the stirring shaft 16. Four sets of hinge seats are provided at the bottom of the fixed ring 28. A rotating frame 29 is rotatably connected to the hinge seats. A rotatably connected movable ring 30 is installed on the outer surface of the first movable shaft 24. Four rotatably connected support rods 31 are evenly arranged on the outer circumference of the movable ring 30. The other end of the support rods 31 is rotatably connected to the middle of the rotating frame 29. The first movable shaft 24 is axially slid by the second electric push rod 27, which drives the movable ring 30 to move axially, thereby driving the support rods 31 to swing, so that the rotating frame 29 swings around the fixed ring 28, thereby realizing the adjustment of the opening and closing angle of the rotating frame 29 for scraping material in different areas at the bottom of the mixing tank 1.

[0023] Furthermore, the rotating frame 29 adopts an L-shaped corner design with a smooth transition at the corner, which can effectively avoid the rotation trajectory of the stirring shaft 16 and avoid interference with the stirring blade 21. The opening and closing angle of the rotating frame 29 can be infinitely adjusted. In conjunction with the rotational movement of the stirring shaft 16, it can achieve scraping of material in the entire bottom area of ​​the mixing tank 1 without dead corners, ensuring that there is no material residue at the bottom of the tank, and improving the uniformity of mixing and the utilization rate of materials.

[0024] In an embodiment of the present invention, please refer to Figure 5 and Figure 6 The rotating frame 29 has a cavity 35 inside, and a return spring 32 and a second movable shaft 33 are fitted inside the cavity 35. The second movable shaft 33 and the cavity 35 are sealed by a rubber ring. A scraper 34 is fixed to the bottom end of the second movable shaft 33. The return spring 32 is used to provide continuous axial elastic force to the second movable shaft 33 to ensure that the scraper 34 is always in close contact with the bottom of the mixing tank 1 to avoid material residue.

[0025] It should be noted that the sealing design between the second movable shaft 33 and the cavity 35 can prevent materials from entering the cavity 35 during the mixing process, avoid the return spring 32 from getting stuck or corroded, and ensure the stability of the component operation. The continuous elasticity compensation design of the return spring 32 can offset the wear of the scraper 34, ensure the long-term stability of the scraping effect, and at the same time avoid damage caused by the scraper 34 making hard contact with the bottom of the mixing tank 1, extend the service life of the scraper 34, and improve the reliability of the equipment operation.

[0026] In an optional configuration, the scraper 34 is made of polyurethane rubber. Under the elastic force of the return spring 32, the scraper 34 is pressed and adhered to the bottom of the inner cavity of the mixing tank 1. The scraping surface of the scraper 34 is arc-shaped and matches the curvature of the inner wall of the bottom of the mixing tank 1. The matching design between the scraping surface of the scraper 34 and the curvature of the bottom of the mixing tank 1 can reduce scraping resistance and improve scraping efficiency. At the same time, it can thoroughly remove residual material in the corners of the bottom of the mixing tank 1, preventing material accumulation and deterioration. The elastic fit of the scraper 34 under the action of the return spring 32 not only ensures the thoroughness of scraping, but also adapts to the slight shape differences at the bottom of the mixing tank 1, avoiding scratching the inner wall of the mixing tank 1. This achieves the dual effect of scraping function and equipment protection of the scraper 34.

[0027] In an optional configuration, the rotating shaft 20 and the hollow column 17 are sealed by a sealing ring 23. The sealing ring 23 is an elastic seal resistant to the corrosion of the gel dispersion medium, such as a sealing ring 23 made of nitrile rubber. The corrosion resistance of the sealing ring 23 is suitable for the medium environment in gel dispersion production, preventing material leakage or impurities from entering the hollow column 17 due to aging and failure of the seal. The inner side of the sealing ring 23 is provided with a dustproof lip to prevent material particles from entering the mating gap between the rotating shaft 20 and the hollow column 17. The dustproof lip structure can block material particles from entering the mating gap between the rotating shaft 20 and the hollow column 17, reduce wear when the rotating shaft 20 rotates, reduce the probability of component failure, improve the operational stability and service life of the mating structure between the rotating shaft 20 and the hollow column 17, and ensure long-term efficient operation of the equipment.

[0028] In an embodiment of the present invention, please refer to Figure 1 and Figure 2 The feeding mechanism includes a base 2, a gear pump 3, a storage tank 5, a feed hopper 9, and an ejector 8. The top of the base 2 is provided with four sets of feed inlets 4, which are connected to the inside of the storage tank 5. The bottom of the base 2 is fixed with four sets of storage tanks 5, which correspond one-to-one with the feed inlets 4 and are located directly below the feed inlets 4. The feed hopper 9 is located directly below the storage tanks 5, and the outlet of the feed hopper 9 is connected to the suction port of the ejector 8. The gear pump 3 is fixed to one side of the base 2, and its discharge port is connected to the feed end of the ejector 8. The feed end of the gear pump 3 is connected to an external high-pressure fluid supply pipe to provide the high-pressure working fluid required for driving the ejector 8.

[0029] In this application, the ejector 8 adopts a venturi tube structure design. The high-pressure fluid forms a negative pressure at the throat, which can quickly draw in the material falling from the storage tank 5 and mix it thoroughly with the fluid, effectively preventing material from clumping and clogging the pipeline. The four sets of storage tanks 5 can store different raw materials respectively. The inner wall design makes it difficult for residues to adhere. Each set of storage tanks 5 can be controlled independently, adapting to the precise batching requirements of multiple raw materials in the production of gel dispersions. With the corresponding design of the feed inlet 4 and the feed hopper 9, the flexibility and accuracy of the batching process are ensured.

[0030] The discharge port of the ejector 8 is connected to a four-way pipe 10 via a pipeline. The other three output ports of the four-way pipe 10 are all connected to a conveying pipe 11. The conveying pipe 11 is evenly distributed around the circumference of the mixing tank 1 and is connected to the mixing tank 1. The opening and closing state of the conveying pipe 11 is independently controlled by a manual or electric ball valve. The even distribution of the conveying pipe 11 around the circumference of the mixing tank 1 allows the material to be fed synchronously from different directions on the side wall of the mixing tank 1, forming a circulating mixing effect, avoiding local material accumulation, and improving the initial mixing uniformity. The ball valve has wear-resistant and corrosion-resistant properties and supports flexible adjustment of the number of feeding channels according to the material viscosity. When the material viscosity is high, multiple sets of conveying pipes 11 can be opened to reduce the flow resistance and avoid pipeline blockage. When the material viscosity is low, some conveying pipes 11 can be opened to improve the feeding efficiency and adapt to the feeding needs under different working conditions.

[0031] In optional embodiments, such as Figure 2 As shown, a first electric push rod 6 is installed on both sides of the storage bin 5. A baffle 7 is fixed to the telescopic end of the first electric push rod 6. The baffle 7 is horizontally set at the bottom discharge port of the storage bin 5 and forms a detachable sealing structure. The opening and closing degree of the baffle 7 is adjusted by telescoping the first electric push rod 6, thereby controlling the opening and closing state of the discharge port and the single discharge amount. The bottom discharge port of the storage bin 5 is directly opposite the feeding end of the feeding hopper 9, and the material can fall directly into the feeding hopper 9. The first electric push rod 6 can be set and adjusted by the PLC controller to adjust the opening and closing degree of the baffle 7, thus effectively controlling the quantitative control of the discharge amount to adapt to the production needs of different ratios. It supports switching between manual and automatic control modes, and the operation is flexible and convenient.

[0032] Among them, the baffle 7 adopts a sealed design to prevent leakage from the outlet of the storage box 5, and the detachable sealing structure facilitates the disassembly, cleaning and maintenance of the baffle 7, avoids material residue and deterioration after long-term use, and improves the controllability of the production process.

[0033] In an embodiment of the present invention, please refer to Figure 1The mixing tank 1 is equipped with a level gauge, an explosion-proof thermometer, and a pressure gauge, which are used to monitor the liquid level of the material inside the tank, the temperature of the heat transfer medium in the jacket or the material inside the tank, and the pressure inside the jacket, respectively. A torque sensor 15 is electrically connected to a second electric push rod 27, which can automatically adjust the extension and retraction of the second electric push rod 27 based on the detected stirring torque signal, achieving closed-loop control of the shear force. The combined monitoring design of the level gauge, explosion-proof thermometer, and pressure gauge allows for real-time monitoring of key parameters in the production process within the mixing tank 1, facilitating timely process adjustments by operators and ensuring production stability and product quality consistency. The closed-loop control design of the torque sensor 15 and the second electric push rod 27, through signal processing and command output via the control system, ensures the timeliness and accuracy of shear force adjustment, enabling the equipment to automatically adapt to the stirring requirements of materials with different viscosities, reducing the difficulty of manual operation and improving the level of production automation.

[0034] The top of the mixing tank 1 is hinged with a cover plate 13 so as to observe the mixing status inside the mixing tank 1.

[0035] The working principle of the high-efficiency stirring equipment for producing gel dispersions provided by this invention is as follows: During production, a suitable amount of water is added to the mixing tank 1 via gear pump 3 to heat the water to 60-75℃. Various chemicals are first stored separately in the storage tank 5 and dissolved in water. The opening and closing of the baffle 7 is adjusted by the first electric push rod 6 to achieve quantitative discharge. The chemicals fall into the feed hopper 9 and then into the ejector 8. The high-pressure fluid delivered by gear pump 3 drives the chemicals through the four-way pipe 10 and multiple sets of conveying pipes 11 to be evenly transported into the mixing tank 1. The drive motor 14 rotates, driving the stirring shaft 16 and stirring blades 21 to rotate and stir the material. During the stirring process, the material's form continuously changes, and the overall viscosity fluctuates dynamically. The torque sensor 15 collects the stirring resistance data in real time and calculates the real-time viscosity of the material, transmitting the signal to the control system. The system issues adjustment commands based on the viscosity changes, controlling the extension and retraction of the second electric push rod 27, pushing the first movable shaft 24 axially, and using the slider 25... The transmission mechanism, in conjunction with the spiral chute 26, converts linear motion into rotational motion of the hollow shaft 18. This rotation is then transmitted via the meshing of the first helical gear 19 and the second helical gear 22, simultaneously changing the deflection angle of the stirring blades 21 and adjusting the stirring shear force in real time to adapt to the stirring requirements of different material viscosities. Simultaneously, the movement of the first movable shaft 24 drives the fixedly connected movable ring 30 to move synchronously, driving the rotating frame 29 to rotate and adjust the working range. The scraper 34, under the elastic force of the return spring 32, runs tightly against the bottom of the mixing tank 1, thoroughly scraping away residual material. During the stirring operation, the explosion-proof heater 12, in conjunction with the jacketed heat-conducting medium, stabilizes the material reaction temperature. Various monitoring instruments monitor the tank's internal operating parameters in real time. The sealing ring 23 effectively protects the rotating structure. All components work together to continuously optimize the stirring state following the dynamic changes in material viscosity, stably completing the efficient stirring and processing of the gel dispersion.

[0036] The drive motor 14, torque sensor 15, first electric push rod 6, second electric push rod 27, gear pump 3, jet injector 8, level gauge, explosion-proof thermometer, and pressure gauge involved in this invention adopt conventional models and structures known in the relevant technical field, and they do not constitute the innovation of this invention. The core improvement of this patent lies in the connection method of the above structure with other components and the overall assembly structure.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A high-efficiency mixing device for the production of gel dispersions, comprising a mixing tank (1) and a feeding mechanism for conveying materials to the mixing tank (1), wherein the bottom of the mixing tank (1) is equipped with five sets of explosion-proof heaters (12) circumferentially distributed at equal intervals, the inner wall of the mixing tank (1) is provided with a jacket, the interior of which is filled with a heat-conducting medium, and the top of the mixing tank (1) is hinged with a cover plate (13), characterized in that, Also includes: An automatic adjustment mechanism is installed on the mixing tank (1). The automatic adjustment mechanism can automatically adjust the shear force according to the viscosity of the mixture to adapt to the mixing of gel dispersions of different viscosities. The automatic adjustment mechanism includes a drive motor (14) installed on the top of the mixing tank (1). The output shaft of the drive motor (14) is connected to a torque sensor (15) via a coupling. The torque sensor (15) is fixedly installed on the top end face of the mixing tank (1). The bottom of the torque sensor (15) is connected to a stirring shaft (16) via a coupling. Two sets of hollow columns (17) are fixedly installed in the middle of the stirring shaft (16). A hollow rotating shaft (18) is rotatably connected to the inside of the stirring shaft (16). The bottom of the hollow rotating shaft (18) extends into the interior of the hollow column (17) and is fixedly installed with a first helical gear (19). Four sets of rotating shafts (20) are rotatably connected to the outer periphery of the hollow column (17). A stirring blade (21) is fixed to the outward end of the rotating shaft (20). The end of the rotating shaft (20) located inside the hollow column (17) is fixed. There is a second helical gear (22), the first helical gear (19) meshes with the second helical gear (22), a sealing ring (23) is installed between the rotating shaft (20) and the hollow column (17), a first movable shaft (24) is provided inside the hollow rotating shaft (18), the bottom end of the first movable shaft (24) passes through the bottom of the stirring shaft (16) and is slidably connected to the stirring shaft (16), a slider (25) is fixedly installed on the outer periphery of the top of the first movable shaft (24), multiple annularly distributed and spirally structured sliding grooves (26) are opened on the inner side of the hollow rotating shaft (18), the slider (25) is inserted into the corresponding sliding groove (26) and is slidably connected to the sliding groove (26), a second electric push rod (27) is installed at the bottom of the stirring tank (1), and the telescopic end of the second electric push rod (27) is rotatably connected to the connecting end of the first movable shaft (24); A fixed ring (28) is installed at the bottom of the stirring shaft (16). Four sets of hinge seats are provided at the bottom of the fixed ring (28). A rotating frame (29) is rotatably connected to the hinge seats. A rotatably connected movable ring (30) is installed on the outer surface of the first movable shaft (24). Four rotatably connected support rods (31) are evenly arranged on the outer circumference of the movable ring (30). The other end of the support rod (31) is rotatably connected to the middle of the rotating frame (29). The first movable shaft (24) is pushed axially by the second electric push rod (27) to drive the axial sliding of the first movable shaft (24), thereby driving the movable ring (30) to move axially, and then driving the support rods (31) to swing, so that the rotating frame (29) 29) Swing around the fixed ring (28) to adjust the opening and closing angle of the rotating frame (29) for scraping material in different areas of the bottom of the mixing tank (1). The rotating frame (29) has a cavity (35) inside. A return spring (32) and a second movable shaft (33) are fitted inside the cavity (35). The second movable shaft (33) is sealed with the cavity (35) by a rubber ring. A scraper (34) is fixed at the bottom of the second movable shaft (33). The return spring (32) is used to provide continuous axial elastic force to the second movable shaft (33) to ensure that the scraper (34) is always in close contact with the bottom of the mixing tank (1) to avoid material residue.

2. The high-efficiency mixing equipment for producing gel dispersions according to claim 1, characterized in that, The scraper (34) is made of polyurethane rubber. Under the elastic force of the return spring (32), the scraper (34) is pressed and adhered to the bottom of the inner cavity of the mixing tank (1). The scraping surface of the scraper (34) is arc-shaped and matches the curvature of the inner wall of the bottom of the mixing tank (1).

3. The high-efficiency mixing equipment for producing gel dispersions according to claim 1, characterized in that, The rotating shaft (20) and the hollow column (17) are sealed by a sealing ring (23), and the inner side of the sealing ring (23) is provided with a dustproof lip to prevent material particles from entering the fitting gap between the rotating shaft (20) and the hollow column (17).

4. The high-efficiency mixing equipment for producing gel dispersions according to claim 1, characterized in that, The feeding mechanism includes a base (2), a gear pump (3), a storage tank (5), a feed hopper (9), and an ejector (8). The top of the base (2) is provided with four sets of feed ports (4), which are connected to the inside of the storage tank (5). Four sets of storage tanks (5) are fixed at the bottom of the base (2). The four sets of storage tanks (5) correspond one-to-one with the feed ports (4) and are located directly below the feed ports (4). The feed hopper (9) is provided directly below the storage tanks (5). The outlet of the feed hopper (9) is connected to the suction port of the ejector (8). The gear pump (3) is fixed on one side of the base (2). Its discharge port is connected to the feed end of the ejector (8). Its feed end is connected to an external high-pressure fluid supply pipe to provide the high-pressure working fluid required for driving the ejector (8).

5. The high-efficiency mixing equipment for producing gel dispersions according to claim 4, characterized in that, Both sides of the storage box (5) are equipped with a first electric push rod (6). The telescopic end of the first electric push rod (6) is fixed with a baffle (7). The baffle (7) is horizontally set at the bottom outlet of the storage box (5) and forms a detachable sealing structure. The opening and closing degree of the baffle (7) is adjusted by the telescopic adjustment of the first electric push rod (6), thereby controlling the opening and closing state of the outlet and the single discharge amount. The bottom outlet of the storage box (5) is directly opposite the feed end of the feed hopper (9), and the material can fall directly into the feed hopper (9).

6. The high-efficiency mixing equipment for producing gel dispersions according to claim 4, characterized in that, The discharge port of the jet ejector (8) is connected to a four-way pipe (10) through a pipeline. The other three output ports of the four-way pipe (10) are all connected to a conveying pipe (11). The conveying pipe (11) is evenly distributed around the circumference of the mixing tank (1) and is connected to the mixing tank (1). The opening and closing state of the conveying pipe (11) is independently controlled by a manual or electric ball valve.

7. The high-efficiency mixing equipment for producing gel dispersions according to claim 1, characterized in that, The mixing tank (1) is equipped with a level gauge, an explosion-proof thermometer and a pressure gauge, which are used to monitor the liquid level of the material in the tank, the temperature of the heat transfer medium in the jacket or the material in the tank, and the pressure in the jacket in real time. The torque sensor (15) is electrically connected to the second electric push rod (27), and can automatically adjust the extension and retraction of the second electric push rod (27) according to the detected stirring torque signal to realize closed-loop control of shear force.

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