Rapid dehydration method and system assisted by nanometer ultrasonic field

Abstract

The invention discloses a nanometer ultrasonic field assisted rapid dehydration method and system, and relates to the technical field of medical instruments, and the method comprises the following steps: S1, loading a to-be-dehydrated material on a rotatable bearing device; s2, driving the bearing device to rotate around the central axis at a constant speed; s3, at least one ultrasonic transducer is fixedly arranged on the side of the bearing device, and an ultrasonic field generated by the ultrasonic transducer points to a bearing area of the bearing device; according to the nanometer ultrasonic field assisted rapid dehydration method and system, the bearing device is driven to rotate around the central axis of the bearing device at a constant speed, and meanwhile, the sound field energy center of the ultrasonic transducer is arranged to be not overlapped with the rotation center of the bearing device; the rotating materials can periodically pass through the area with the intensity changing in a gradient mode in the ultrasonic field, and the problems that due to uneven energy distribution or fixed focusing of a traditional static ultrasonic field, local overheating and uneven drying of the materials or energy overload damage of part of the area are caused are fundamentally solved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a rapid dehydration method and system assisted by a nano-ultrasound field. Background Technology

[0002] In recent years, nanotechnology has been increasingly widely used in the field of dehydration treatment. Its unique physicochemical effects have provided new ideas for efficient and gentle dehydration processes. Especially in industries such as medical devices, biomaterials, and high-end food processing, higher requirements have been placed on dehydration technology: not only must the moisture in the material be removed quickly, but the original structure, biological activity, and physical properties of the material must also be preserved. Traditional dehydration methods, such as hot air drying and vacuum freeze drying, although each has its advantages, often face problems such as uneven drying and quality deterioration caused by local overheating when processing materials with complex structures or heat-sensitive materials. These problems limit the application efficiency and product quality of dehydration technology in the processing of high value-added products.

[0003] However, most existing ultrasonic field dehydration systems adopt a static layout, meaning the ultrasonic transducer positions are fixed. This results in an uneven spatial distribution of ultrasonic irradiation intensity received by the material during the dehydration process. This inhomogeneity is particularly prominent when processing multi-layered materials or materials with complex pores, easily causing localized ultrasonic energy overload, leading to overheating and structural damage, while other areas may suffer from insufficient energy, resulting in incomplete dehydration. How to achieve a uniform distribution of the ultrasonic field during the material dehydration process and avoid localized energy overload and uneven drying has become a key problem that urgently needs to be solved in current ultrasonic field-assisted dehydration technology. Summary of the Invention

[0004] The purpose of this invention is to provide a rapid dehydration method and system assisted by a nano-ultrasonic field, so as to solve the problems of local energy overload and uneven drying of materials caused by static layout in the ultrasonic field dehydration process in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rapid dehydration method assisted by a nano-ultrasonic field, comprising the following steps:

[0006] S1. Load the material to be dehydrated onto a rotatable support device;

[0007] S2. Drive the load-bearing device to rotate at a constant speed around its central axis;

[0008] S3. At least one ultrasonic transducer is fixedly installed on the side of the bearing device, so that the ultrasonic field it generates is directed towards the bearing area of ​​the bearing device;

[0009] S4. Start the ultrasonic transducer so that the ultrasonic field it generates acts on the rotating material.

[0010] In this configuration, within the rotation plane of the supporting device, the energy center of the ultrasonic field does not coincide with the rotation center of the supporting device, thereby causing the material to periodically experience ultrasonic irradiation of different intensities during rotation.

[0011] Furthermore, in step S2, the rotational speed of the bearing device is 5 to 10 revolutions per minute.

[0012] Furthermore, in step S4, while activating the ultrasonic transducer, a drying airflow is applied to at least one surface of the material.

[0013] Furthermore, when the material has a multi-layered structure, the drying airflow is applied simultaneously to two opposite surfaces of the material.

[0014] Furthermore, ultrasonic transducers are provided on the outer sides of both opposite surfaces of the multilayer material to apply a penetrating ultrasonic field from both sides.

[0015] A nano-ultrasonic field-assisted rapid dehydration system includes an installation platform, a drive assembly installed on the inner wall of the installation platform, a bearing seat installed on the top of the installation platform, a turntable installed on the top of the bearing seat, and a placement box installed on the top of the turntable.

[0016] The inner wall of the placement box is equipped with a placement mesh plate. A conical drainage groove is formed on the inner wall of the placement box below the placement mesh plate. A drain pipe is installed on the surface of the placement box, and one end of the drain pipe is inserted into the inner wall of the conical drainage groove. A first air pump is installed on the inner bottom wall of the placement box. A first air outlet pipe is installed at the output end of the first air pump, and the top end of the first air outlet pipe is inserted into the inner wall of the conical drainage groove.

[0017] Furthermore, a column is installed on the top of the turntable, a second air pump is installed on the inner wall of the column, a second air outlet pipe is installed at the output end of the second air pump, and the bottom end of the second air outlet pipe is located above the mesh plate.

[0018] Furthermore, a drive component is installed on the inner wall of the installation platform, and a drive rod is installed at the output end of the drive component. The top end of the drive rod is installed at the bottom of the turntable. The drive component and the drive rod together constitute a drive assembly.

[0019] Furthermore, a telescopic component is installed on one side of the installation platform, a connecting bracket is installed at the output end of the telescopic component, an electric guide rail is installed on the inner bottom wall of the connecting bracket, a sliding block is slidably connected to the inner wall of the electric guide rail, an ultrasonic transducer is installed at the bottom of the sliding block, and the ultrasonic transducer is positioned above the placement box.

[0020] Furthermore, a mounting rod is installed on one side of the top of the mounting platform, a camera is installed on the top of the mounting rod, and a control switch is provided on one side of the mounting platform.

[0021] Compared with existing technologies, the present invention provides a rapid dehydration method and system assisted by a nano-ultrasonic field. By driving a support device to rotate uniformly around its central axis, and simultaneously setting the sound field energy center of the ultrasonic transducer to be non-coincident with the rotation center of the support device, the rotating material can periodically pass through the region of gradient intensity in the ultrasonic field. This creates a dynamic and non-uniform sound field application mode, which fundamentally avoids the problems of local overheating, uneven drying, or energy overload damage in some areas caused by uneven energy distribution or fixed focusing in traditional static ultrasonic fields. Thus, while improving the overall dehydration efficiency, it ensures the uniformity of the dehydration effect and the integrity of the material quality.

[0022] By setting up a two-stage precision adjustment mechanism consisting of telescopic components and electric guide rails to position the ultrasonic transducer, the projection point of the transducer's acoustic axis can be precisely adjusted and locked at any position off the center of rotation in a two-dimensional space parallel to the rotation plane of the bearing part. This achieves controllability and adjustability of the ultrasonic field eccentricity, allowing the same set of equipment to flexibly adapt to materials with different physical properties (such as size, moisture content, and tolerance). By optimizing the eccentricity, the optimal dewatering parameters can be found, thereby greatly enhancing the equipment's process adaptability, the optimizability of the treatment effect, and the universality of the method.

[0023] By setting independent airflow supply units (a first air pump and a second air pump and their outlet pipes) above and below the material carrier, drying airflow can be applied simultaneously to the two opposing surfaces of the material. Combined with the rotating carrier and the eccentric ultrasonic field, a three-dimensional synergistic dehydration mechanism of internal ultrasonic activation and dual-surface convection removal is constructed. The airflow not only rapidly removes surface moisture and maintains a concentration gradient conducive to the outward migration of internal moisture, but more importantly, it coordinates with the dynamic ultrasonic field in time and space, thereby achieving enhanced utilization of ultrasonic energy and continuous strengthening of the mass transfer process. This is particularly suitable for removing moisture from the core layer of multi-layered or thick materials. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the driving component structure provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the placement box structure provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the telescopic component structure provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the electric guide rail structure provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Mounting platform; 2. Bearing seat; 3. Turntable; 4. Placement box; 5. Placement mesh plate; 6. Conical drainage trough; 7. Drain pipe; 8. First air pump; 9. First air outlet pipe; 10. Column; 11. Second air outlet pipe; 12. Drive component; 13. Drive rod; 14. Telescopic assembly; 15. Connecting bracket; 16. Electric guide rail; 17. Sliding block; 18. Ultrasonic transducer; 19. Mounting rod; 20. Camera; 21. Control switch. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] As attached Figure 1 To be continued Figure 5 As shown:

[0034] Example 1:

[0035] This invention provides a rapid dehydration method assisted by a nano-ultrasonic field, comprising the following steps:

[0036] S1. Load the material to be dehydrated onto a rotatable support device;

[0037] S2. Drive the load-bearing device to rotate at a constant speed around its central axis;

[0038] S3. At least one ultrasonic transducer is fixedly installed on the side of the bearing device, so that the ultrasonic field it generates is directed towards the bearing area of ​​the bearing device.

[0039] S4. Start the ultrasonic transducer so that the ultrasonic field it generates acts on the rotating material.

[0040] In this process, the energy center of the ultrasonic field does not coincide with the rotation center of the support device within the rotation plane, thus causing the material to periodically experience ultrasonic irradiation of different intensities during rotation.

[0041] In step S2, the rotation speed of the bearing device is 5 to 10 revolutions per minute.

[0042] In step S4, while activating the ultrasonic transducer, a drying airflow is applied to at least one surface of the material.

[0043] When the material has a multi-layered structure, the drying airflow is applied to two opposite surfaces of the material simultaneously.

[0044] Ultrasonic transducers are installed on the outer sides of two opposing surfaces of the multilayer material to apply penetrating ultrasonic fields from both sides.

[0045] In step S4, a high-frequency mechanical vibration is generated by an ultrasonic transducer fixedly mounted on the side of the support device. This vibration forms a nanoscale ultrasonic field in the medium. The ultrasonic cavitation effect and the resulting microjets mechanically impact and disturb the bound water inside and on the surface of the material, effectively disrupting the interaction forces between water molecules and the material matrix. This significantly reduces the activation energy required to remove bound water and accelerates the migration of water from the material's interior to its surface. Simultaneously, due to the periodic change in the material's position within the plane of rotation and the geometric relationship between the energy center of the ultrasonic field and the rotation center of the support device, the acoustic intensity of the ultrasonic irradiation received by any point on the rotating material exhibits a regular gradient change at different phases of its trajectory. This dynamically changing acoustic field intensity distribution avoids the localized overheating and uneven drying phenomena caused by uneven energy focusing or attenuation in a static ultrasonic field. It achieves a balanced application of energy in both time and space, ensuring the uniformity of material quality while improving dehydration efficiency. Especially for materials with porous or fibrous nanostructures, this periodically varying ultrasonic irradiation pattern can more effectively act on the interior of the pores, promoting the desorption and transport of moisture. When a drying airflow is applied synergistically, the airflow can quickly remove water molecules activated by ultrasound from the material surface, reducing the surface vapor pressure and maintaining a concentration gradient conducive to the continuous outward diffusion of internal moisture, thus forming a synergistic dehydration effect with the ultrasonic field. For multilayer materials, by simultaneously applying a drying airflow and a penetrating ultrasonic field from two opposite surfaces, a bidirectional ultrasonic activation-airflow-carried dehydration path is formed, which is particularly suitable for materials with large thickness and high internal mass transfer resistance, ensuring that moisture in the core layer can also be efficiently removed, thereby achieving a rapid, uniform dehydration method suitable for nanostructured materials.

[0046] Example 2:

[0047] A nano-ultrasonic field-assisted rapid dehydration system includes an installation platform 1, a drive assembly installed on the inner wall of the installation platform 1, a bearing seat 2 installed on the top of the installation platform 1, a turntable 3 installed on the top of the bearing seat 2, and a placement box 4 installed on the top of the turntable 3.

[0048] The inner wall of the placement box 4 is equipped with a placement mesh plate 5. A conical drainage groove 6 is opened on the inner wall of the placement box 4 below the placement mesh plate 5. A drain pipe 7 is installed on the surface of the placement box 4, and one end of the drain pipe 7 is inserted into the inner wall of the conical drainage groove 6. A first air pump 8 is installed on the inner bottom wall of the placement box 4. A first air outlet pipe 9 is installed at the output end of the first air pump 8, and the top end of the first air outlet pipe 9 is inserted into the inner wall of the conical drainage groove 6. A column 10 is installed on the top of the turntable 3. A second air pump is installed on the inner wall of the column 10. A second air outlet pipe 11 is installed at the output end of the second air pump, and the bottom end of the second air outlet pipe 11 is located above the placement mesh plate 5. A drive component 12 is installed on the inner wall of the installation platform 1. A drive rod 13 is installed at the output end of the drive component 12, and the top end of the drive rod 13 is installed at the bottom of the turntable 3. The drive component 12 and the drive rod 13 together constitute a drive assembly.

[0049] In use, the installation platform 1 serves as the support and integration base. A rotatable turntable 3 is mounted on its top via a bearing seat 2. The bearing seat 2 provides stable rotational support for the turntable 3 and ensures its rotation around a defined central axis. A placement box 4 for holding materials is fixed on the top of the turntable 3. Inside the placement box 4, there is a placement mesh plate 5 for supporting the materials to be dehydrated. This mesh plate structure allows the dehydrated liquid to permeate downwards. Directly below the placement mesh plate 5, the inner wall of the placement box 4 is designed with a conical drainage groove 6. This conical structure can effectively collect the liquid that has been dehydrated from the material and passed through the mesh plate, and guide it to the drain pipe 7 connected to the bottom of the drainage groove, thereby achieving the orderly discharge of liquid water from the material and preventing water accumulation. A first air pump 8 is installed on the inner bottom wall of the placement box 4. The output end of the first air pump 8 is connected to a first air outlet pipe 9 that extends into the conical drainage trough 6. Its function is to deliver dry airflow into the trough and the bottom area of ​​the material. This airflow can accelerate the surface evaporation of the converging liquid and also penetrate the mesh plate to blow away moisture from the bottom of the material, forming an upward airflow channel. A column 10 is also erected on the top of the turntable 3. A second air pump is integrated inside the column 10. The second air pump delivers dry airflow to the top space of the material above the placement mesh plate 5 through the second air outlet pipe 11 at its output end, thereby realizing double-sided air blowing of the material. The rotation power of the system is provided by a drive assembly located inside the mounting platform 1. The drive assembly consists of a drive component 12 (a geared motor) and a drive rod 13 connected to its output end. The top end of the drive rod 13 is fixedly connected to the bottom of the turntable 3. The drive component 12 transmits torque to the turntable 3 through the drive rod 13, driving it, along with the placement box 4 and the material inside, to rotate at a constant speed around the central axis of the bearing seat 2. Together, they constitute a dynamic dehydration environment: the material undergoes periodically changing physical conditions during rotation, while being subjected to drying airflows from the bottom and top, combined with the ultrasonic field described later, to achieve a rapid dehydration process enhanced in multiple dimensions, from mechanical rotation and airflow convection to basic drainage.

[0050] Example 3:

[0051] This embodiment is basically the same as the previous embodiment, except that a telescopic component 14 is installed on one side of the installation platform 1, a connecting bracket 15 is installed at the output end of the telescopic component 14, an electric guide rail 16 is installed on the inner bottom wall of the connecting bracket 15, a sliding block 17 is slidably connected to the inner wall of the electric guide rail 16, an ultrasonic transducer 18 is installed at the bottom of the sliding block 17, and the ultrasonic transducer 18 is positioned above the placement box 4. An installation rod 19 is installed on one side of the top of the installation platform 1, a camera 20 is installed on the top of the installation rod 19, and a control switch 21 is provided on one side of the installation platform 1.

[0052] In use, a telescopic component 14 is provided on one side of the mounting platform 1. The output end of the telescopic component 14 (usually an electric push rod or cylinder) is horizontally connected to the connecting bracket 15. Through the linear reciprocating motion of the telescopic component 14, the entire connecting bracket 15 and all its components can be driven to move radially forward and backward relative to the rotating placement box 4, realizing the mechanical structure for coarse adjustment of the eccentricity of the ultrasonic transducer 18 and avoidance of the work position. An electric guide rail 16 is installed on the inner bottom wall of the connecting bracket 15. The sliding block 17 forms a precise sliding connection with the inner wall of the electric guide rail 16. Through the control of the electric guide rail 16, the sliding block 17 can make precise linear displacement in a direction parallel to the radial direction of the turntable 3, thereby realizing the fine adjustment and programmed control of the eccentric position of the ultrasonic transducer 18. The ultrasonic transducer 18 is fixedly installed at the bottom of the sliding block 17, with its sound field radiation surface pointing vertically downwards towards the material area inside the placement box 4. Through the combined movement of the telescopic component 14 and the electric guide rail 16, the ultrasonic transducer 18 can adjust and lock its acoustic axis at any target position off the rotation center of the turntable 3 in a two-dimensional plane parallel to the rotation plane of the turntable 3. This ensures that the energy center of the ultrasonic field does not coincide with the rotation center of the supporting device, thus ensuring that the material undergoes periodic ultrasonic irradiation with varying intensity during rotation. The mounting rod 19 is fixed to the top side of the mounting platform 1, and the camera 20 mounted on its top is used to monitor the dehydration status of the material inside the placement box 4 or the working position of the transducer 18 in real time, providing visual feedback for closed-loop control. The control switch 21 is integrated on the mounting platform 1 and is used to centrally control the start and stop of the drive component 12, the first air pump 8, the second air pump, the telescopic component 14, the electric guide rail 16 and the ultrasonic transducer 18 and set their parameters. Together, they form an ultrasonic generating unit with a precisely adjustable position. The unique two-stage adjustment mechanism (telescopic component 14 and electric guide rail 16) ensures the reliability and adaptability of the ultrasonic field eccentric setting.

[0053] Application example:

[0054] This invention describes the specific application process of medical surgical suture preforms (a multi-layered, porous material woven from polymer fibers). These materials contain a large amount of moisture after weaving, and traditional hot air drying easily leads to denaturation and hardening of the fiber surface proteins and uneven internal moisture retention, thus affecting their final flexibility, tensile strength, and biocompatibility. The nano-ultrasonic field-assisted rapid dehydration method and system provided by this invention can achieve efficient and uniform dehydration at low or room temperature, maximizing the preservation of the original mechanical properties and structural integrity of the suture preform, and meeting the requirements of subsequent sterilization and packaging processes.

[0055] In application, the operator first starts the system via control switch 21. The wet surgical suture blank, which has undergone preliminary centrifugation but still contains a significant amount of bound water, is evenly spread on the placement mesh plate 5 within the placement box 4. The design of the placement box 4 ensures that the blank is stably supported, while its porous structure allows moisture to pass through freely. Subsequently, the drive unit 12 (usually a geared motor) transmits power to the turntable 3 via the drive rod 13. The turntable 3, supported by the bearing seat 2, begins to rotate uniformly around its central axis at a stable speed of approximately 6 revolutions per minute. This slow rotation causes the various parts of the suture blank spread on the placement mesh plate 5 to periodically change their spatial position.

[0056] Next, the ultrasonic generating unit begins operation. The operator sets parameters via control switch 21 and activates the telescopic assembly 14 and the electric guide rail 16. The telescopic assembly 14 (which can be an electric push rod) pushes the connecting bracket 15 to move towards the center of the turntable 3 for initial positioning. Subsequently, the electric guide rail 16 drives the sliding block 17 on it to slide precisely along the guide rail, thereby moving the ultrasonic transducer 18, fixed at the bottom of the sliding block 17, to a pre-set, precise target position offset from the rotation center of the turntable 3. This position is confirmed by the camera 20 on the top of the mounting rod 19. After positioning, the ultrasonic transducer 18 is activated, generating ultrasonic waves of a specific frequency and power. Its sound field radiates vertically downwards, acting on the suture blank rotating below. Because the projection point of the acoustic axis on the rotation plane is offset from the rotation center, the relative distance and angle between each point on the blank and the ultrasonic transducer 18 continuously and periodically change as the turntable 3 moves in a circle, causing the ultrasonic irradiation intensity it receives to also change in a regular gradient. This dynamic, non-uniform acoustic field mode can effectively utilize the ultrasonic cavitation effect and micro-jets to penetrate deep into the fiber gaps and pores inside the blank, repeatedly impacting and loosening the water molecules that are tightly bound to the fiber material, breaking the hydrogen bonds between water molecules and their binding force with the fiber surface, and promoting the conversion of bound water into easily removable free water.

[0057] Simultaneously, to enhance the dehydration effect and remove the precipitated moisture immediately, the airflow supply system is activated. The first air pump 8, integrated into the bottom wall of the placement box 4, begins operation, generating a dry airflow that is blown upwards into the conical drainage trough 6 area through the first air outlet pipe 9. The airflow accelerates the surface evaporation of liquid water that seeps from the billet, falls along the placement mesh plate 5, and collects in the conical drainage trough 6. Furthermore, some of the airflow penetrates the mesh of the placement mesh plate 5, blowing the seam-lined billet from the bottom and carrying away moisture from its bottom surface. The second air pump, installed inside the top column 10 of the turntable 3, also operates simultaneously, generating a dry airflow that is blown downwards onto the upper surface of the billet through the second air outlet pipe 11. This simultaneous application of drying airflow from both the top and bottom surfaces works in synergy with the dynamic ultrasonic field acting from above: the ultrasonic field activates and drives away moisture from within, while the convective drying airflow rapidly creates a low-humidity environment on the material surface, effectively carrying away any escaping water vapor and maintaining a continuous moisture concentration gradient from the material's interior to its surface, thus significantly accelerating the entire dehydration and mass transfer process. Throughout the dehydration process, the liquid water removed from the material is collected by the mesh plate 5 into the conical drain trough 6, and finally discharged from the system through the drain pipe 7.

[0058] Through the synergistic effect of rotating bearing, eccentric dynamic ultrasonic irradiation, and bidirectional convective drying airflow, surgical suture blanks that originally required prolonged hot air drying could achieve deep and uniform dehydration in a shorter time. The dehydrated blanks not only had uniform moisture content meeting process standards, but also exhibited a loose fiber structure and minimal loss of mechanical properties, providing high-quality intermediate products for subsequent processing. The entire application process demonstrated the system's advantages in dehydrating high-value materials with nano / micron-scale porous structures that are sensitive to thermal and mechanical damage.

[0059] Working principle: When the system is working, the operator sets the operating parameters and starts the equipment through the control switch 21. First, the material to be dewatered is loaded onto the placement screen 5 inside the placement box 4. The porous structure of the placement screen 5 allows liquid to pass through freely. Then, the drive component 12 on the inner wall of the mounting platform 1 starts to work. The drive component 12 transmits torque to the turntable 3 through the drive rod 13 fixed to its output end. The turntable 3 is driven to rotate uniformly around a defined central axis under the support of the bearing seat 2. The rotation speed is usually controlled at 5 to 10 revolutions per minute. This slow rotation allows the material to periodically change position on the carrying device. The core dehydration function of the system is achieved through the synergistic action of the ultrasonic generator unit and the air supply unit: In the ultrasonic generator unit, the telescopic component 14 fixed to one side of the mounting platform 1 is activated first, driving the connecting bracket 15 at its output end to move horizontally for coarse positioning. Then, the electric guide rail 16 at the bottom of the connecting bracket 15 is activated, driving the sliding block 17 slidably connected to it to be precisely positioned along the guide rail direction. Finally, the sound field radiation surface of the ultrasonic transducer 18 fixed at the bottom of the sliding block 17 is precisely suspended above the placement box 4 at a predetermined position that is offset from the rotation center of the turntable 3. After the ultrasonic transducer 18 is activated, it generates high-frequency vibration, forming a nanoscale ultrasonic field that acts on the material rotating below. Because the center of the acoustic axis is offset from the rotation center, the distance between each point on the material and the ultrasonic transducer 18 changes periodically during the movement, resulting in a regular gradient change in the intensity of the ultrasonic irradiation it receives. This dynamically changing sound field can effectively utilize the cavitation effect and microjets to penetrate into the internal pores of the material, destroy the combination of water molecules and the material matrix, and promote the migration of internal moisture to the surface. At the same time, the air supply unit works synchronously to enhance the dehydration effect and remove moisture: the first air pump 8 integrated in the bottom wall of the placement box 4 is started, and the generated dry airflow is sent upward into the area of ​​the conical drain trough 6 through the first air outlet pipe 9. This airflow accelerates the evaporation of the seepage liquid collected in the conical drain trough 6 on the one hand, and penetrates the placement mesh plate 5 to blow the bottom of the material on the other hand. At the same time, the second air pump installed inside the top column 10 of the turntable 3 is also started, and the generated dry airflow is blown from top to bottom onto the upper surface of the material through the second air outlet pipe 11. This dry airflow that convects from top to bottom quickly forms a low humidity environment on the surface of the material. In synergy with the ultrasonic field, it efficiently removes water molecules that have migrated to the surface after being "activated" by ultrasound, and maintains the moisture diffusion gradient from the inside of the material to the surface. Throughout the process, the removed liquid water passes through the placement mesh plate 5, is collected and guided by the conical drainage trough 6, and is then orderly discharged from the system through the drain pipe 7. The camera 20, installed on top of the mounting rod 19, provides visual monitoring of the material status or the location of key equipment components, and feeds this information back to the control system to assist in process optimization or closed-loop control. In summary, this system achieves uniform, efficient, and low-temperature dehydration of materials in both time and space through the organic combination of rotating bearing, eccentric dynamic ultrasonic irradiation, and bidirectional convection drying airflow.

[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rapid dehydration method assisted by a nano-ultrasonic field, characterized in that, Includes the following steps: S1. Load the material to be dehydrated onto a rotatable support device; S2. Drive the load-bearing device to rotate at a constant speed around its central axis; S3. At least one ultrasonic transducer is fixedly installed on the side of the bearing device, so that the ultrasonic field it generates is directed towards the bearing area of ​​the bearing device; S4. Start the ultrasonic transducer so that the ultrasonic field it generates acts on the rotating material. In this configuration, within the rotation plane of the supporting device, the energy center of the ultrasonic field does not coincide with the rotation center of the supporting device, thereby causing the material to periodically experience ultrasonic irradiation of different intensities during rotation.

2. The rapid dehydration method assisted by a nano-ultrasonic field according to claim 1, characterized in that, In step S2, the rotational speed of the bearing device is 5 to 10 revolutions per minute.

3. The rapid dehydration method assisted by a nano-ultrasonic field according to claim 1, characterized in that, In step S4, while activating the ultrasonic transducer, a drying airflow is applied to at least one surface of the material.

4. The rapid dehydration method assisted by a nano-ultrasonic field according to claim 3, characterized in that, When the material has a multi-layered structure, the drying airflow is applied simultaneously to two opposite surfaces of the material.

5. The rapid dehydration method assisted by a nano-ultrasonic field according to claim 4, characterized in that, Ultrasonic transducers are installed on the outer sides of two opposing surfaces of the multilayer material to apply penetrating ultrasonic fields from both sides.

6. A nano-ultrasonic field-assisted rapid dehydration system, applicable to the nano-ultrasonic field-assisted rapid dehydration method according to any one of claims 1 to 5, comprising an installation platform (1), characterized in that, The inner wall of the installation platform (1) is equipped with a drive assembly, the top of the installation platform (1) is equipped with a bearing seat (2), the top of the bearing seat (2) is equipped with a turntable (3), and the top of the turntable (3) is equipped with a placement box (4). The inner wall of the placement box (4) is equipped with a placement mesh plate (5). The inner wall of the placement box (4) is provided with a conical drainage groove (6) below the placement mesh plate (5). The surface of the placement box (4) is equipped with a drain pipe (7), and one end of the drain pipe (7) is inserted into the inner wall of the conical drainage groove (6). The bottom wall of the placement box (4) is equipped with a first air pump (8). The output end of the first air pump (8) is equipped with a first air outlet pipe (9), and the top end of the first air outlet pipe (9) is inserted into the inner wall of the conical drainage groove (6).

7. The rapid dehydration system assisted by a nano-ultrasonic field according to claim 6, characterized in that, A column (10) is installed on the top of the turntable (3), and a second air pump is installed on the inner wall of the column (10). A second air outlet pipe (11) is installed at the output end of the second air pump, and the bottom end of the second air outlet pipe (11) is located above the mesh plate (5).

8. The rapid dehydration system assisted by a nano-ultrasonic field according to claim 6, characterized in that, The inner wall of the installation platform (1) is equipped with a drive component (12), and the output end of the drive component (12) is equipped with a drive rod (13). The top end of the drive rod (13) is installed at the bottom of the turntable (3). The drive component (12) and the drive rod (13) together constitute a drive assembly.

9. The rapid dehydration system assisted by a nano-ultrasonic field according to claim 6, characterized in that, A telescopic component (14) is installed on one side of the installation platform (1). A connecting bracket (15) is installed at the output end of the telescopic component (14). An electric guide rail (16) is installed on the inner bottom wall of the connecting bracket (15). A sliding block (17) is slidably connected to the inner wall of the electric guide rail (16). An ultrasonic transducer (18) is installed at the bottom of the sliding block (17), and the ultrasonic transducer (18) is positioned above the placement box (4).

10. A rapid dehydration system assisted by a nano-ultrasonic field according to claim 6, characterized in that, An installation rod (19) is installed on one side of the top of the installation platform (1), and a camera (20) is installed on the top of the installation rod (19). A control switch (21) is provided on one side of the installation platform (1).

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