Liquid dressing production equipment

Abstract

The invention discloses liquid dressing production equipment, and relates to the technical field of medical instrument production equipment.The liquid dressing production equipment is characterized in that firstly, neodymium iron boron magnets of a driving rotary disc and a driven rotary disc are in coupling transmission, and a middle isolation sleeve is matched, so that complete physical isolation inside and outside a kettle is achieved; a uniform magnetic field generated by Helmholtz coils is used for weakening attraction force among particles, a dynamic magnetic field gradient formed by rotation of a permanent magnet arranged in a stirring paddle can cooperate with mechanical shearing, so that the internal structure of an aggregate is deeply destroyed, meanwhile, the Helmholtz coils in three orthogonal directions provide a global uniform static magnetic field, and the aggregate is fully dispersed. The stability of the magnetic background in the kettle can be ensured, the global effect of the dynamic magnetic field gradient is matched, the local defect caused by purely depending on mechanical shearing is avoided, the dispersion uniformity is remarkably improved, the influence of the concentration gradient on the physical and chemical properties is reduced, and the influence of initial agglomeration on the subsequent process can be reduced by utilizing the efficient dispersion capacity of the magnetic mixing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device production equipment, in particular to liquid dressing production equipment. Background Art

[0002] Liquid dressing is a medical dressing in liquid form. It mainly forms a protective film on the skin or wound surface to protect the wound, promote healing, and isolate pollution. It is one of the commonly used products in modern wound care.

[0003] Liquid dressing production equipment is a professional equipment system that processes raw materials such as high molecular polymers and antimicrobial agents into finished products through a series of processes. Its performance is directly related to product quality, safety and production efficiency. Its core functions cover raw material mixing, quantitative filling, aseptic processing and packaging.

[0004] However, the prior art has the following deficiencies: In existing liquid dressing production equipment, hard agglomerates of nanoparticles form a stable structure due to surface chemical bonds and van der Waals attraction. Simple mechanical shearing cannot destroy their internal forces, resulting in residual micron-sized agglomerated particles in the colloidal dispersion system, affecting the colloidal stability of the liquid dressing. In addition, a single mechanical shear force cannot achieve full-domain uniform dispersion of nanoparticles. Due to the lack of a magnetic field, the attraction between particles is not effectively weakened, and the hard agglomerates are difficult to be completely broken up. At the same time, in high-viscosity liquid dressings, nanoparticles form a bottom dead zone due to gravity sedimentation. The local flow restriction of traditional stirring leads to low material transfer efficiency. In addition, high-viscosity materials are prone to adhere to the wall of the kettle or form local retention during stirring, resulting in poor spatial uniformity of particle dispersion.

[0005] Therefore, we propose a liquid dressing production device to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a liquid dressing production device, which is equipped with a magnetic mixing component. The uniform magnetic field generated by the three orthogonal Helmholtz coil groups after being energized can provide a stable global magnetic background in the kettle, and can exert a continuous directional magnetic force on the nanoparticles, thereby weakening the attraction between the particles and laying the foundation for dispersion. At the same time, when the neodymium iron boron permanent magnet built into the stirring paddle rotates with the blade, the surrounding magnetic field will dynamically change with the position, forming a rotating magnetic field gradient. This gradient will generate shear force on the nanoparticles. When the permanent magnet approaches, the particles are attracted by the strong magnetic force. When it moves away, the magnetic force suddenly decreases. Combined with the mechanical shearing of the rotating blades, the agglomerates can be effectively destroyed. The two work together to make the dispersion efficiency much higher than that of a single magnetic field or simple mechanical stirring, avoiding the re-agglomeration of nanoparticles.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a liquid dressing production device, comprising a magnetic mixing component, a pulsed airflow component, and a base, wherein the magnetic mixing component and the pulsed airflow component are respectively mounted on the top of the base, and the pulsed airflow component is mounted on one side of the outer wall of the magnetic mixing component; The magnetic mixing assembly includes four groups of first permanent magnets and three Helmholtz coil groups, wherein the four groups of first permanent magnets are used to generate dynamic magnetic field gradients, and the three Helmholtz coil groups are used to generate a uniform static magnetic field; The pulse airflow component includes a group of first inclined air outlets, a group of first horizontal air outlets, a group of second horizontal air outlets, and a group of second inclined air outlets. A group of the first inclined air outlets is inclined upward at forty-five degrees, and a group of the first inclined air outlets is used to suppress bottom deposition. A group of the first horizontal air outlets is used to assist in discharging. A group of the second horizontal air outlets is used to enhance stirring efficiency. A group of the second inclined air outlets is inclined downward at forty-five degrees, and a group of the second inclined air outlets is used to promote air circulation.

[0008] Preferably, the top of the base is connected to four brackets by bolts, and the outer walls of the four brackets are fixedly connected to the kettle body.

[0009] Preferably, the magnetic mixing assembly further comprises two fixing frames, an isolation sleeve, two second supporting frames, three support plates, and a feed port. The bottoms of the two fixing frames are connected to the top of the kettle body, a servo motor is bolted between the outer walls of the two fixing frames, the shaft end of the servo motor is rotatably connected to a transmission shaft, the bottom of the transmission shaft is rotatably connected to an active turntable, a group of first NdFeB magnets is fixedly embedded in the bottom of the active turntable, the outer surface of the transmission shaft is sleeved with a first bearing, the outer surface of the first bearing is fixedly connected to two first supporting frames, and the tops of the two first supporting frames are bolted to the bottom of the servo motor.

[0010] Preferably, the bottoms of the two second support frames are connected to the top of the kettle body, a second bearing is fixedly connected between the outer walls of the two second support frames, the inner surfaces of the second bearings are rotatably connected to a stirring shaft, the top of the stirring shaft is rotatably connected to a passive turntable, a group of second NdFeB magnets is fixedly embedded in the bottom of the passive turntable, a group of first NdFeB magnets and a group of second NdFeB magnets are used to generate a dynamic magnetic field, the bottom of the isolation sleeve is connected to the top of the kettle body, the isolation sleeve is fully placed between the active turntable and the passive turntable, and the isolation sleeve has a circle of movable space from the bottom of the active turntable and the top of the passive turntable, and fully wraps the two second support frames, the second bearings, the passive turntable, and a group of second NdFeB magnets to form an enclosed space.

[0011] Preferably, the interior of the stirring shaft is a hollow structure, and four stirring blades are fixedly installed on the outer surface of the stirring shaft. The inner walls of the four stirring blades are connected to the outer walls of the corresponding group of first permanent magnets, and a torque sensor is fixedly installed on the outer surface of the stirring shaft.

[0012] Preferably, one side of the outer wall of the three support plates is connected to the outer surface of the kettle body by bolts, one side of the outer wall of the three support plates is fixedly connected with a connecting piece, one side of the outer wall of the three support plates is fixedly installed with a magnetic field strength sensor, both ends of the outer wall of the three connecting pieces are connected with an annular sleeve, the interior of the six annular sleeves are provided with holes, and each two holes are connected with a corresponding Helmholtz coil group, the bottom of the feed port is connected to the top of the kettle body, a group of second permanent magnets is fixedly embedded in the inner surface of the feed port, and the group of second permanent magnets is used to generate magnetic traction, a flow concentration sensor is fixedly installed on the inner surface of the feed port, and the bottom of the feed port is fixedly connected with a material guide pipe, and the inner surface of the material guide pipe is provided with a spiral groove.

[0013] Preferably, the pulse airflow component also includes an air compressor, the air delivery end of the air compressor is fixedly connected to a first connecting pipe, the air delivery end of the first connecting pipe is fixedly connected to an air storage tank, the outer surface of the air storage tank is bolted to an L-shaped plate, and the bottom of the L-shaped plate is fixedly connected to an air filter.

[0014] Preferably, the gas delivery end of the gas storage tank is connected to the air inlet end of the air filter, the bottom of the air filter is fixedly connected to a second connecting pipe, the gas delivery end of the second connecting pipe is fixedly connected to a precision pressure reducing valve, one end of the outer wall of the precision pressure reducing valve is fixedly connected to a third connecting pipe, and the bottom of the precision pressure reducing valve, the gas storage tank and the air compressor are all connected to the top of the base.

[0015] Preferably, a pressure sensor is fixedly installed on the top of the third connecting pipe, the gas delivery end of the third connecting pipe is fixedly connected to a sterile filter, the gas delivery end of the sterile filter is fixedly connected to a high-frequency solenoid valve, the gas delivery end of the high-frequency solenoid valve is fixedly connected to a delivery pipe, and the gas delivery ends of the delivery pipe are respectively connected to the first gas distribution pipe, the second gas distribution pipe, and the third gas distribution pipe, and the first gas distribution pipe, the second gas distribution pipe and the third gas distribution pipe are respectively installed at the bottom, middle and top of the kettle body.

[0016] Preferably, the air outlet end of the first air distribution duct is respectively connected to the air inlet end of a group of first inclined air outlets and a group of first horizontal air outlets, the air outlet end of the second air distribution duct is connected to the air inlet end of the second horizontal air outlet, and the air outlet end of the third air distribution duct is connected to the air inlet end of a group of second inclined air outlets.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a magnetic mixing component is provided. First, the NdFeB magnets of the active turntable and the passive turntable are coupled and driven, and the isolation sleeve in the middle is used to achieve complete physical isolation between the inside and outside of the kettle. The uniform magnetic field generated by the Helmholtz coil is used to weaken the attraction between the particles. The dynamic magnetic field gradient formed by the rotation of the built-in permanent magnet of the stirring paddle can synergize with mechanical shearing to deeply destroy the internal structure of the agglomerate. At the same time, the Helmholtz coils in three orthogonal directions provide a uniform static magnetic field over the entire region, which can ensure the stability of the magnetic background in the kettle. The global effect of the dynamic magnetic field gradient avoids the local defects of relying solely on mechanical shearing, significantly improves the uniformity of dispersion, and reduces the influence of concentration gradient on physical and chemical properties. The efficient dispersion ability of the magnetic mixing component can reduce the influence of initial agglomeration on subsequent processes. At the same time, more thorough dispersion can reduce the energy consumption of rework or secondary processing, successfully solving the energy consumption problem caused by initial agglomeration.

[0018] 2. In the present invention, by setting up a pulse airflow component, first, an air compressor, an air storage tank, an air filter, a precision pressure reducing valve, a pressure sensor, a sterile filter and a high-frequency solenoid valve are used to provide a stable, clean and controllable air source basis for the pulse airflow, and the first inclined air outlet at the bottom is used to suppress bottom deposition through airflow disturbance, destroy the dead zone, and allow the deposited material to re-participate in the mixing. This design successfully solves the problem of local uneven concentration, and then the stirring efficiency is enhanced by the second flat air outlet, and the second inclined air outlet at the top promotes airflow circulation, and cooperates with the global magnetic field effect of the magnetic mixing component to break the limitation of the liquid following the flow around the blade, realize global mixing, and reduce costs. At the same time, the first flat air outlet at the bottom assists in discharging, reduces residue, and further reduces subsequent cleaning costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a perspective view of the main structure of a liquid dressing production device of the present invention; Figure 2 This is a side structural perspective diagram of a liquid dressing production device of the present invention; Figure 3 This is a perspective view of the cross-sectional structure of a liquid dressing production device of the present invention; Figure 4 This is a three-dimensional diagram of the structure of a magnetic mixing component in a liquid dressing production device of the present invention; Figure 5 This is a schematic diagram of the installation position structure of the active turntable, the first NdFeB magnet, and the isolation sleeve in a liquid dressing production device of the present invention; Figure 6 This is a schematic diagram of the installation position structure of a stirring shaft, a stirring blade, and a first permanent magnet in a liquid dressing production device of the present invention; Figure 7 This invention is a liquid dressing production equipment Figure 6 A magnified stereoscopic view of the structure at center A; Figure 8 This invention is a liquid dressing production equipment Figure 6 A magnified stereoscopic view of the structure at point B in the middle; Figure 9 This is a three-dimensional diagram of the structure of a pulse airflow component in a liquid dressing production device of the present invention; Figure 10 This is a schematic diagram of the installation position structure of a precision pressure reducing valve, a third connecting pipe, and a pressure sensor in a liquid dressing production device of the present invention; Figure 11 This is a schematic diagram of the installation position structure of the second air distribution duct, the second horizontal air outlet, and the third air distribution duct in a liquid dressing production device of the present invention; Figure 12 This invention is a liquid dressing production equipment Figure 11 Enlarged stereoscopic image of the structure at point C in the middle.

[0020] In the figure: 100, base; 200, bracket; 300, kettle body; 400, magnetic mixing assembly; 401, fixing frame; 402, servo motor; 403, transmission shaft; 404, first supporting frame; 405, first bearing; 406, active turntable; 407, first NdFeB magnet; 408, isolation sleeve; 409, second supporting frame; 410, second bearing; 411, passive turntable; 412, second NdFeB magnet; 413, stirring shaft; 414, stirring blade; 415, first permanent magnet; 416, support plate; 417, connecting piece; 418, Helmholtz coil assembly; 419, magnetic field strength sensor; 420, feed port; 421, second permanent magnet; 422, flow concentration Sensor; 423, material guide tube; 424, spiral groove; 425, torque sensor; 500, pulse airflow component; 501, air compressor; 502, first connecting pipe; 503, air storage tank; 504, L-shaped plate; 505, air filter; 506, second connecting pipe; 507, precision pressure reducing valve; 508, third connecting pipe; 509, pressure sensor; 510, sterile filter; 511, high-frequency solenoid valve; 512, conveying pipe; 513, first air distribution pipe; 514, first inclined air outlet; 515, first horizontal air outlet; 516, second air distribution pipe; 517, second horizontal air outlet; 518, third air distribution pipe; 519, second inclined air outlet. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Example 1. This example focuses on existing liquid dressing production equipment. Nanoparticle hard agglomerates form a stable structure due to surface chemical bonds and van der Waals attraction. Mechanical shear alone cannot destroy these internal forces, resulting in residual micron-sized agglomerated particles in the colloidal dispersion system, affecting the colloidal stability of the liquid dressing. Furthermore, a single mechanical shear force cannot achieve uniform dispersion of the nanoparticles across the entire region. Due to the lack of a magnetic field, the attraction between the particles is not effectively weakened, making it difficult to completely break up the hard agglomerates. This embodiment is designed to address the problems of the prior art. A magnetic mixing assembly 400 is provided. First, the NdFeB magnets of the active turntable 406 and the passive turntable 411 are coupled and driven, and the isolation sleeve 408 in the middle is used to achieve complete physical isolation between the inside and outside of the kettle. The uniform magnetic field generated by the Helmholtz coil assembly 418 weakens the attraction between the particles. The dynamic magnetic field gradient formed by the rotation of the first permanent magnet 415 built into the stirring blade 414 can synergize with mechanical shearing to deeply destroy the internal structure of the agglomerates. At the same time, the Helmholtz coil assemblies 418 in three orthogonal directions provide a globally uniform static magnetic field, which can ensure a stable magnetic background in the kettle. Combined with the global effect of the dynamic magnetic field gradient, the local defects of relying solely on mechanical shearing are avoided, the dispersion uniformity is significantly improved, and the impact of concentration gradients on physical and chemical properties is reduced. The efficient dispersion ability of the magnetic mixing assembly 400 can reduce the impact of initial agglomeration on subsequent processes. At the same time, more thorough dispersion reduces the energy consumption of rework or secondary processing, successfully solving the energy consumption problem caused by initial agglomeration.

[0023] See also Figure 1-Figure 3 As shown, the present invention provides a technical solution: a liquid dressing production device, including a magnetic mixing component 400, a pulse airflow component 500, and a base 100, wherein the magnetic mixing component 400 and the pulse airflow component 500 are respectively installed on the top of the base 100, and the pulse airflow component 500 is installed on one side of the outer wall of the magnetic mixing component 400.

[0024] The top of the base 100 is connected to four brackets 200 by bolts, and the outer walls of the four brackets 200 are fixedly connected to the kettle body 300.

[0025] When in use, first determine the specific installation position of the base 100, then fully fix the base 100 to the ground. When the base 100 is fixed, connect the four brackets 200 on the top of the base 100 by bolts, and fix the kettle body 300 between the outer walls of the four brackets 200. Then install the magnetic mixing component 400 and the pulse airflow component 500 on one side. The full fixation of the base 100 can provide effective support for the components connected thereto, so as to ensure that the magnetic mixing component 400 and the pulse airflow component 500 can work in the subsequent operation. The magnetic mixing component 400 is used to solve the industry pain points such as uneven dispersion of nanoparticles through the deep integration of magnetic transmission, magnetic field control, intelligent sensing and structural optimization. Secondly, the pulse airflow component 500 forms an effective complement with the magnetic transmission and magnetic field dispersion of the magnetic mixing component 400 through sterile airflow, directional disturbance and coordinated control, achieving multiple optimizations in enhancing the uniformity of nanoparticle dispersion, ensuring a sterile environment, improving cleaning and discharging efficiency, reducing costs and enhancing process adaptability, and at the same time providing a reliable support premise for continuous production.

[0026] In some embodiments, according to Figures 1-8 As shown, the magnetic mixing assembly 400 includes four groups of first permanent magnets 415 and three groups of Helmholtz coils 418 . The four groups of first permanent magnets 415 are used to generate dynamic magnetic field gradients, and the three groups of Helmholtz coils 418 are used to generate a uniform static magnetic field.

[0027] The magnetic mixing assembly 400 also includes two fixed frames 401, an isolation sleeve 408, two second support frames 409, three support plates 416, and a feed port 420. The bottoms of the two fixed frames 401 are connected to the top of the kettle body 300. A servo motor 402 is bolted between the outer walls of the two fixed frames 401. The shaft end of the servo motor 402 is rotatably connected to a transmission shaft 403. The bottom of the transmission shaft 403 is rotatably connected to an active turntable 406. A group of first neodymium iron boron magnets 407 are fixedly embedded in the bottom of the active turntable 406. The outer surface of the transmission shaft 403 is sleeved with a first bearing 405. The outer surface of the first bearing 405 is fixedly connected to two first support frames 404. The tops of the two first support frames 404 are bolted to the bottom of the servo motor 402.

[0028] The bottoms of the two second support frames 409 are connected to the top of the kettle body 300, and a second bearing 410 is fixedly connected between the outer walls of the two second support frames 409. The inner surface of the second bearing 410 is rotatably connected to the stirring shaft 413, and the top of the stirring shaft 413 is rotatably connected to the passive turntable 411. A group of second NdFeB magnets 412 are fixedly embedded in the bottom of the passive turntable 411. A group of first NdFeB magnets 407 and a group of second NdFeB magnets 412 are used to generate a dynamic magnetic field. The bottom of the isolation sleeve 408 is connected to the top of the kettle body 300, and the isolation sleeve 408 is fully placed between the active turntable 406 and the passive turntable 411, and the isolation sleeve 408 has a circle of movable space from the bottom of the active turntable 406 and the top of the passive turntable 411, and fully wraps the two second support frames 409, the second bearing 410, the passive turntable 411, and a group of second NdFeB magnets 412 to form a closed space.

[0029] The interior of the stirring shaft 413 is a hollow structure, and four stirring blades 414 are fixedly installed on the outer surface of the stirring shaft 413. The inner walls of the four stirring blades 414 are connected to the outer walls of the corresponding group of first permanent magnets 415. A torque sensor 425 is fixedly installed on the outer surface of the stirring shaft 413.

[0030] One side of the outer wall of the three support plates 416 is bolted to the outer surface of the kettle body 300, and one side of the outer wall of the three support plates 416 is fixedly connected to a connecting piece 417, and one side of the outer wall of the three support plates 416 is fixedly installed with a magnetic field strength sensor 419, and the outer walls of the three connecting pieces 417 are connected to annular sleeves at both ends, and the interiors of the six annular sleeves are provided with holes, and each two holes are connected to a corresponding Helmholtz coil group 418. The bottom of the feed port 420 is connected to the top of the kettle body 300, and a group of second permanent magnets 421 are fixedly embedded in the inner surface of the feed port 420. The group of second permanent magnets 421 is used to generate magnetic traction, and a flow concentration sensor 422 is fixedly installed on the inner surface of the feed port 420, and the bottom of the feed port 420 is fixedly connected to a material guide pipe 423, and the inner surface of the material guide pipe 423 is provided with a spiral groove 424.

[0031] When in use, a complete magnetic mixing assembly 400 is formed by presetting the above components. In the startup preparation stage, two fixing frames 401 are used to achieve overall fixation through the connection between the bottom and the top of the kettle body 300, providing stable support for the servo motor 402, and the servo motor 402 serves as a power source. The shaft end of the servo motor 402 is rotationally connected with the transmission shaft 403 and power is transmitted. The first bearing 405 sleeved on the outer surface of the transmission shaft 403 is connected to the bottom of the servo motor 402 through two first support frames 404 to form a stable rotation support structure. When the servo motor 402 is started, the power is transmitted to the active turntable 406 at the bottom through the transmission shaft 403, so that it rotates synchronously. A first NdFeB magnet 407 is formed, and then a first NdFeB magnet 407 rotates synchronously with the active turntable 406. At the bottom of the isolation sleeve 408, a second NdFeB magnet 412 at the bottom of the passive turntable 411 generates a dynamic magnetic field coupling with the first NdFeB magnet 407. The isolation sleeve 408 is made of a material that does not hinder the penetration of the magnetic field. This magnetic field coupling can drive the passive turntable 411 to rotate, and then drive the stirring shaft 413 connected to the bottom of the passive turntable 411 to rotate. This design can realize the contactless transmission of power from the outside to the inside of the kettle body 300, avoiding the leakage problem that may occur in traditional mechanical seals. The four stirring blades 414 are fixedly installed on the outer surface of the stirring shaft 413, and its inner wall is connected to the four groups of first permanent magnets. 415 is connected. When the stirring shaft 413 rotates, the first permanent magnet 415 rotates synchronously with the stirring blade 414. The magnetic field around it changes dynamically with the position of the first permanent magnet 415, forming a rotating magnetic field gradient. When the first permanent magnet 415 rotates, the magnitude and direction of the magnetic force on the nearby nanoparticles change periodically over time. The three Helmholtz coil groups 418 are fixed to the support plate 416 outside the kettle body 300 through the connecting piece 417 and the annular sleeve. The three Helmholtz coil groups 418 are arranged in orthogonal directions. When the Helmholtz coil groups 418 are energized, according to the Biot-Savart law, a uniform static magnetic field is generated in the central area of ​​the Helmholtz coil group 418. This static magnetic field provides the nanoparticles in the kettle body 300 with a uniform static magnetic field. A stable magnetic background is provided and continuously acts on the particles, thereby preventing particle agglomeration. The above-mentioned dynamic magnetic field gradient and static magnetic field are used in synergistic effect on the nanoparticles. When the first permanent magnet 415 rotates close to the nanoparticles, the particles are attracted by a strong magnetic force and move with the magnetic field. When the permanent magnet moves away, the magnetic force decreases sharply, and the particles move relative to the surrounding fluid due to inertia. This alternating magnetic force and the mechanical shear force generated by the rotation of the stirring blade 414 work together to form a dual dynamic dispersion effect of magnetic disturbance and mechanical shear, thereby effectively destroying nanoparticle agglomerates and improving dispersion efficiency. Due to the torque sensor 425 installed on the outer surface of the stirring shaft 413, the torque sensor 425 is used to monitor the torque changes during the stirring process in real time.The torque sensor 425 can feed signals back to the control system for adjusting the stirring speed or magnetic field parameters to ensure a stable and efficient mixing process. The magnetic field strength sensors 419 on the three support plates 416 monitor the magnetic field strength generated by the Helmholtz coil assembly 418 in real time. The data fed back by the magnetic field strength sensors 419 can be used to adjust the current of the Helmholtz coil assembly 418 and maintain the stability of the magnetic field strength. A set of second permanent magnets 421 embedded in the inner surface of the feed port 420 generates an uneven magnetic field in the feed area. When the material containing magnetic nanoparticles passes through the feed port 420, the particles are pulled by the magnetic force generated by the set of second permanent magnets 421 and move along the direction of the magnetic field gradient, achieving initial dispersion and guidance, and preventing the material from agglomerating and accumulating at the feed port 420. The spiral grooves 424 on the inner surface of the guide tube 423 cause the incoming material to produce a rotational motion during its fall, thereby enhancing the uniformity of dispersion of the material with the material already in the kettle.

[0032] Example 2. This example focuses on existing liquid dressing production equipment. In high-viscosity liquid dressings, nanoparticles form a dead zone at the bottom due to gravity sedimentation. The local flow restriction of traditional stirring leads to low material transfer efficiency. In addition, high-viscosity materials are prone to adhere to the wall of the kettle or form local retention during stirring, resulting in poor spatial uniformity of particle dispersion. This embodiment is completed in order to solve the problems of this prior art. A pulse airflow component 500 is set up. First, an air compressor 501, an air storage tank 503, an air filter 505, a precision pressure reducing valve 507, a pressure sensor 509, a sterile filter 510 and a high-frequency solenoid valve 511 are used to provide a stable, clean and controllable air source basis for the pulse airflow, and the first inclined air outlet 514 at the bottom is used to suppress bottom deposition through airflow disturbance, destroy the dead zone, and allow the deposited material to re-participate in the mixing. This design successfully solves the problem of local uneven concentration. Subsequently, the stirring efficiency is enhanced through the second flat air outlet 517, and the second inclined air outlet 519 at the top promotes airflow circulation. In conjunction with the global magnetic field effect of the magnetic mixing component 400, the limitation of the liquid following the flow around the stirring blade 414 is broken, global mixing is achieved, and costs are reduced. At the same time, the first flat air outlet 515 at the bottom assists in discharging, reduces residue, and further reduces subsequent cleaning costs.

[0033] In some embodiments, according to Figure 1-Figure 3 as well as Figures 9-12As shown, the pulse airflow component 500 includes a group of first inclined air outlets 514, a group of first horizontal air outlets 515, a group of second horizontal air outlets 517, and a group of second inclined air outlets 519. A group of first inclined air outlets 514 is inclined upward at forty-five degrees, and a group of first inclined air outlets 514 is used to suppress bottom deposition, a group of first horizontal air outlets 515 is used to assist in discharging, a group of second horizontal air outlets 517 is used to enhance stirring efficiency, a group of second inclined air outlets 519 is inclined downward at forty-five degrees, and a group of second inclined air outlets 519 is used to promote air circulation.

[0034] The pulse airflow component 500 also includes an air compressor 501, the air delivery end of the air compressor 501 is fixedly connected to a first connecting pipe 502, the air delivery end of the first connecting pipe 502 is fixedly connected to an air storage tank 503, the outer surface of the air storage tank 503 is bolted to an L-shaped plate 504, and the bottom of the L-shaped plate 504 is fixedly connected to an air filter 505.

[0035] The gas delivery end of the gas storage tank 503 is connected to the air inlet end of the air filter 505, and the bottom of the air filter 505 is fixedly connected to a second connecting pipe 506. The gas delivery end of the second connecting pipe 506 is fixedly connected to a precision pressure reducing valve 507. One end of the outer wall of the precision pressure reducing valve 507 is fixedly connected to a third connecting pipe 508. The precision pressure reducing valve 507, the gas storage tank 503 and the bottom of the air compressor 501 are all connected to the top of the base 100.

[0036] A pressure sensor 509 is fixedly installed on the top of the third connecting pipe 508, and the gas delivery end of the third connecting pipe 508 is fixedly connected to a sterile filter 510, and the gas delivery end of the sterile filter 510 is fixedly connected to a high-frequency solenoid valve 511, and the gas delivery end of the high-frequency solenoid valve 511 is fixedly connected to a delivery pipe 512, and the gas delivery ends of the delivery pipe 512 are respectively connected to the first gas distribution pipe 513, the second gas distribution pipe 516, and the third gas distribution pipe 518, and the first gas distribution pipe 513, the second gas distribution pipe 516 and the third gas distribution pipe 518 are respectively installed at the bottom, middle and top of the kettle body 300.

[0037] The air outlet end of the first air distribution duct 513 is respectively connected to the air inlet ends of a group of first inclined air outlets 514 and a group of first horizontal air outlets 515, the air outlet end of the second air distribution duct 516 is connected to the air inlet end of the second horizontal air outlet 517, and the air outlet end of the third air distribution duct 518 is connected to the air inlet end of a group of second inclined air outlets 519.

[0038] When in use, the above components form a complete pulse airflow component 500. First, after the air compressor 501 is started by an external power supply, the external air is compressed and transported to the inside of the air tank 503. The function of the air tank 503 is to store compressed air and stabilize air pressure fluctuations, providing a continuous and stable air source for subsequent processing. The L-shaped plate 504 fixes the air filter 505 on the side of the air tank 503, so that the compressed air in the air tank 503 first enters the air filter 505 to remove large particles of impurities such as dust and oil, and preliminarily purify the air. Then, the preliminarily filtered air enters the interior of the precision pressure reducing valve 507 through the second connecting pipe 506. The precision pressure reducing valve 507 can be used to accurately adjust the air pressure to the set value required by the process to ensure The subsequent air flow output is stable. At this time, the pressure sensor 509 can monitor the air pressure in the third connecting pipe 508 in real time, and feed back the data obtained from the real-time monitoring to the control system, thereby realizing closed-loop control and further improving the accuracy of pressure control. The regulated air flow continues to pass through the sterile filter 510 to remove microorganisms and fine particles therein to meet the sterility standard. After that, the sterile air flow enters the high-frequency solenoid valve 511, and the control system controls the opening and closing frequency of the solenoid valve according to the process requirements to convert the continuous air flow into a pulsed air flow. This pulsed air flow is distributed to the first air distribution pipe 513, the second air distribution pipe 516, and the third air distribution pipe 518 through the delivery pipe 512. The first air distribution pipe 513 is located at the bottom of the kettle body 300, and the second air distribution pipe 516 is located at the bottom of the kettle body 300. Located in the middle, the third air distribution duct 518 is located at the top, forming a stratified airflow control, wherein the first air distribution duct 513 sprays airflow through the first inclined air outlet 514 at a 45-degree angle upward, forming an upward thrust at the bottom of the kettle body 300, effectively suppressing material deposition, and this directional airflow can destroy the accumulation state of the material at the bottom, allowing the material to re-participate in the mixing, and significantly enhance the overall mixing effect, which is especially suitable for the stirring process of high-viscosity materials or solid-liquid mixtures. In the discharging stage, the first horizontal air outlet 515 sprays airflow in the horizontal direction of the kettle wall, forming an air curtain flushing effect around the kettle wall. This air curtain pushes the residual material attached to the bottom and wall of the kettle to flow toward the discharge port, greatly reducing the material residual rate. The outlet 517 blows air toward the stirring blade 414, forming an auxiliary driving force during the rotation of the stirring blade 414, which not only improves the stirring efficiency but also reduces the adhesion of materials on the surface of the blade. Secondly, the second inclined air outlet 519 of the third air distribution pipe 518 sprays air at a downward angle of forty-five degrees, forming a downward air flow circulation at the top of the kettle body 300. This airflow can not only prevent material particles from rising and adhering to the inner wall of the kettle body 300, but also promote the overall air flow circulation inside the kettle body 300, improve the uniformity of temperature distribution, and thus reduce local overheating or overcooling. The high-frequency solenoid valve 511 is used to accurately control the jet timing of each air distribution pipe. During the stirring stage, the first inclined air outlet 514 and the second horizontal air outlet 517 can be activated first to enhance the mixing effect.During the discharge stage, the first horizontal air outlet 515 is opened to improve the discharge efficiency. During the entire process, the second oblique air outlet 519 can maintain continuous air flow to maintain the air circulation in the kettle.

[0039] In a more specific solution, the magnetic mixing assembly 400 described in Example 1 and the pulsed airflow assembly 500 described in Example 2 are combined to produce the following final result: First, when the magnetic mixing component 400 is operating, the first permanent magnet 415 built into the stirring blade 414 rotates with the stirring shaft 413 to form a dynamic magnetic field gradient, and the Helmholtz coil group 418 provides a global static magnetic field. At this time, the high-frequency solenoid valve 511 of the pulse airflow component 500 is synchronized in real time with the dynamic magnetic field gradient formed by the first permanent magnet 415 rotating with the stirring shaft 413 through the controller. When the first permanent magnet 415 rotates to the peak area of ​​the magnetic field gradient, that is, the position with the strongest magnetic force on the nanoparticles, the high-frequency solenoid valve 511 is triggered to release the pulse airflow, and the first inclined air outlet 514 of the first air distribution pipe 513 at the bottom instantly releases the oblique upward airflow, forming a magnetic field gradient. The superposition effect of a certain magnetic stretching and air flow shearing is that for high-density magnetic particles, the magnetic force can make them gather in a directional manner along the magnetic field lines, and the synchronous air flow impacts the agglomerates from the side, thereby improving the efficiency of breaking hard agglomerates. For low-density non-magnetic particles, the air flow shearing directly breaks the surface tension, and the static magnetic field of the Helmholtz coil group 418 can suppress the generation of secondary agglomeration. In the early stage of dispersion, the first inclined air outlet 514 of the first air distribution duct 513 and the second flat air outlet 517 of the second air distribution duct 516 are preferentially activated in the pulse air flow component 500. The bottom air flow pushes the settled high-density particles upward, causing them to enter the magnetic field action area of ​​the Helmholtz coil group 418, and the middle The air flow is blown toward the stirring blade 414, which can reduce the adhesion of materials on the blade surface and ensure that the magnetic field gradient of the first permanent magnet 415 acts on the particles without obstruction, thereby improving the shear efficiency and stabilizing the dispersion stage. The second horizontal air outlet 517 is closed, and only the second inclined air outlet 519 and the first inclined air outlet 514 of the third air distribution duct 518 are retained. The downward oblique air flow of the second inclined air outlet 519 at the top forms a cycle with the static magnetic field of the Helmholtz coil group 418, which drives the low-density particles to move downward under the drive of the air flow, avoiding floating and retention. The magnetic particles are constrained by the magnetic field to remain in a suspended state, and the two are continuously mixed in the cycle. A magnetic field response sensor is integrated on the inner wall of the kettle body 300. , laser particle size analyzer and dielectric constant sensor. When high-density magnetic particles are detected to be agglomerated, the controller can automatically increase the current of the Helmholtz coil group 418 to increase the static magnetic field strength, and at the same time increase the airflow frequency of the first air distribution duct 513. The strong magnetic field can restrain the particles to avoid sedimentation after dispersion, and the high-frequency airflow continues to impact the agglomeration core until the laser particle size analyzer detects that the particle size drops to the target range. When low-density non-magnetic particles are detected floating, the static magnetic field strength of the Helmholtz coil group 418 is reduced through the control system, and the second inclined air outlet 519 of the third air distribution duct 518 is opened to release the downward oblique airflow, which pushes the particles downward into the shear zone of the stirring blade 414.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid dressing production device, comprising a magnetic mixing component (400), a pulsed airflow component (500), and a base (100), characterized in that: A magnetic mixing component (400) and a pulse airflow component (500) are respectively installed on the top of the base (100), and the pulse airflow component (500) is installed on one side of the outer wall of the magnetic mixing component (400); The magnetic mixing assembly (400) comprises four groups of first permanent magnets (415) and three Helmholtz coil groups (418), wherein the four groups of first permanent magnets (415) are used to generate a dynamic magnetic field gradient, and the three Helmholtz coil groups (418) are used to generate a uniform static magnetic field; The pulse airflow component (500) includes a group of first inclined air outlets (514), a group of first horizontal air outlets (515), a group of second horizontal air outlets (517), and a group of second inclined air outlets (519). A group of the first inclined air outlets (514) is inclined upward at forty-five degrees, and a group of the first inclined air outlets (514) is used to suppress bottom deposition, a group of the first horizontal air outlets (515) is used to assist in discharging, a group of the second horizontal air outlets (517) is used to enhance stirring efficiency, a group of the second inclined air outlets (519) is inclined downward at forty-five degrees, and a group of the second inclined air outlets (519) is used to promote airflow circulation.

2. The liquid dressing production equipment according to claim 1, characterized in that: Four brackets (200) are connected to the top of the base (100) by bolts, and the outer walls of the four brackets (200) are fixedly connected to the kettle body (300).

3. The liquid dressing production equipment according to claim 2, characterized in that: The magnetic mixing assembly (400) further comprises two fixing frames (401), an isolation sleeve (408), two second support frames (409), three support plates (416), and a feed port (420). The bottoms of the two fixing frames (401) are connected to the top of the kettle body (300). A servo motor (402) is bolted between the outer walls of the two fixing frames (401). The shaft end of the servo motor (402) is rotatably connected to a transmission shaft (403). The bottom of the transmission shaft (403) is rotatably connected to an active turntable (406). A group of first NdFeB magnets (407) is fixedly embedded in the bottom of the active turntable (406). The outer surface of the transmission shaft (403) is sleeved with a first bearing (405). The outer surface of the first bearing (405) is fixedly connected to two first support frames (404). The tops of the two first support frames (404) are bolted to the bottom of the servo motor (402).

4. The liquid dressing production equipment according to claim 3, characterized in that: The bottoms of the two second support frames (409) are connected to the top of the kettle body (300), and the outer walls of the two second support frames (409) are fixedly connected with a second bearing (410), the inner surface of the second bearing (410) is rotatably connected with a stirring shaft (413), the top of the stirring shaft (413) is rotatably connected with a passive turntable (411), and the bottom of the passive turntable (411) is fixedly embedded with a group of second NdFeB magnets (412), a group of the first NdFeB magnets (407) and a group of the second NdFeB magnets. The iron (412) is used to generate a dynamic magnetic field. The bottom of the isolation sleeve (408) is connected to the top of the kettle body (300). The isolation sleeve (408) is fully placed between the active turntable (406) and the passive turntable (411). The isolation sleeve (408) has a circle of movable space from the bottom of the active turntable (406) and the top of the passive turntable (411), and fully wraps the two second support frames (409), the second bearing (410), the passive turntable (411), and a group of second neodymium iron boron magnets (412) to form a closed space.

5. The liquid dressing production equipment according to claim 4, characterized in that: The interior of the stirring shaft (413) is a hollow structure, and four stirring blades (414) are fixedly installed on the outer surface of the stirring shaft (413). The inner surface walls of the four stirring blades (414) are connected to the outer surface walls of a corresponding group of first permanent magnets (415). A torque sensor (425) is fixedly installed on the outer surface of the stirring shaft (413).

6. The liquid dressing production equipment according to claim 3, characterized in that: One side of the outer wall of the three support plates (416) is connected to the outer surface of the kettle body (300) by bolts, one side of the outer wall of the three support plates (416) is fixedly connected to a connecting piece (417), one side of the outer wall of the three support plates (416) is fixedly installed with a magnetic field strength sensor (419), and both ends of the outer wall of the three connecting pieces (417) are connected to an annular sleeve, and holes are opened in the interior of the six annular sleeves, and a corresponding Helmholtz coil group (418) is inserted between every two holes. The feed port (420) is connected to the top of the kettle body (300), the bottom of the feed port (420) is connected to the top of the kettle body (300), the inner surface of the feed port (420) is fixedly embedded with a group of second permanent magnets (421), and the group of second permanent magnets (421) is used to generate magnetic traction, the inner surface of the feed port (420) is fixedly installed with a flow concentration sensor (422), the bottom of the feed port (420) is fixedly connected with a guide pipe (423), and the inner surface of the guide pipe (423) is provided with a spiral groove (424).

7. The liquid dressing production equipment according to claim 1, characterized in that: The pulse airflow assembly (500) further comprises an air compressor (501), wherein the air delivery end of the air compressor (501) is fixedly connected to a first connecting pipe (502), the air delivery end of the first connecting pipe (502) is fixedly connected to an air storage tank (503), an outer surface of the air storage tank (503) is bolted to an L-shaped plate (504), and the bottom of the L-shaped plate (504) is fixedly connected to an air filter (505).

8. The liquid dressing production equipment according to claim 7, characterized in that: The gas delivery end of the gas storage tank (503) is connected to the gas inlet end of the air filter (505); the bottom of the air filter (505) is fixedly connected to a second connecting pipe (506); the gas delivery end of the second connecting pipe (506) is fixedly connected to a precision pressure reducing valve (507); one end of the outer wall of the precision pressure reducing valve (507) is fixedly connected to a third connecting pipe (508); the bottoms of the precision pressure reducing valve (507), the gas storage tank (503), and the air compressor (501) are all connected to the top of the base (100).

9. The liquid dressing production equipment according to claim 8, characterized in that: A pressure sensor (509) is fixedly installed on the top of the third connecting pipe (508), the gas delivery end of the third connecting pipe (508) is fixedly connected to a sterile filter (510), the gas delivery end of the sterile filter (510) is fixedly connected to a high-frequency solenoid valve (511), the gas delivery end of the high-frequency solenoid valve (511) is fixedly connected to a delivery pipe (512), and the gas delivery end of the delivery pipe (512) is respectively connected to a first gas distribution pipe (513), a second gas distribution pipe (516), and a third gas distribution pipe (518), and the first gas distribution pipe (513), the second gas distribution pipe (516), and the third gas distribution pipe (518) are respectively installed at the bottom, middle, and top of the kettle body (300).

10. The liquid dressing production equipment according to claim 9, characterized in that: The air outlet end of the first air distribution duct (513) is respectively connected to the air inlet end of a group of first inclined air outlets (514) and a group of first horizontal air outlets (515); the air outlet end of the second air distribution duct (516) is connected to the air inlet end of the second horizontal air outlet (517); and the air outlet end of the third air distribution duct (518) is connected to the air inlet end of a group of second inclined air outlets (519).

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