Ultrasonic dispersion structure and dispersion device

Abstract

The utility model belongs to the technical field of dispersion devices, and particularly discloses an ultrasonic dispersion structure which comprises an energy-gathering cavity with a cavity, the energy converter is connected with the energy gathering cavity, the amplitude-change pole is connected into the energy converter, and at least part of the amplitude-change pole is arranged in the energy gathering cavity; at least one set of amplitude-change poles are arranged at one end of the energy gathering cavity through the energy converter, the energy converter and the amplitude-change poles are provided with coaxial through holes, the through holes are communicated with the cavity, and materials enter the cavity through the through holes. When the materials to be dispersed are conveyed and flow in the through holes, the materials are vibrated in the through holes, so that the materials are pre-dispersed, the dispersion effect is improved, the adhesive force of the materials to the inner walls of the through holes is basically eliminated, the materials (especially solid materials) cannot be adhered to and detained on the inner walls of the through holes, and the conveying capacity is stable. Meanwhile, the utility model also discloses a dispersing device.

Description

Technical Field

[0001] This utility model belongs to the field of dispersion device technology, specifically relating to an ultrasonic dispersion structure and dispersion device. Background Technology

[0002] Ultrasonic dispersion devices induce mechanical vibrations, shear forces, impact forces, and vortex flows in the material being dispersed during ultrasonic wave propagation. These effects work together to effectively break up and disperse agglomerated materials, thus achieving dispersion. Therefore, ultrasonic dispersion devices are widely used in various industrial fields such as chemical, pharmaceutical, food, and environmental protection.

[0003] However, existing ultrasonic dispersing devices have some problems with material conveying. Typically, material is fed into the device through the inlet with the assistance of a conveying pump. However, the conveying force of the pump is relatively weak for pre-dispersing agglomerated materials, especially when encountering materials with strong agglomeration forces, where the pump can hardly play an effective pre-dispersing role. Furthermore, if the material to be dispersed is solid particles, it easily adheres to the inner wall of the inlet, reducing the inlet's conveying capacity. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic dispersion structure that pre-disperses the material to be dispersed during conveying, and the material will not stick to or remain on the inner wall of the feed inlet, thus stabilizing the conveying capacity.

[0005] The purpose of this invention is achieved through this technical solution, specifically by providing an ultrasonic dispersion structure.

[0006] include:

[0007] The energy-concentrating cavity is equipped with a hollow cavity;

[0008] The transducer is connected to the energy-concentrating cavity;

[0009] An amplitude transformer is connected to the transducer, and at least a portion of the amplitude transformer is disposed in the energy-concentrating cavity;

[0010] At least one set of amplitude rods is installed at one end of the energy-concentrating cavity via a transducer. The transducer and amplitude rods are provided with coaxial through holes, which are connected to the cavity. Material enters the cavity through the through holes.

[0011] Preferably, the diameter of the through hole is 3-5 mm.

[0012] Preferably, the end of the through hole furthest from the transducer has an inner groove.

[0013] Preferably, the inner groove is arc-shaped and its diameter is less than 3mm.

[0014] Preferably, the port of the energy-concentrating cavity is horn-shaped, gradually decreasing in size from the port into the energy-concentrating cavity, and the amplitude transformer has a shape that matches the horn shape.

[0015] Preferably, the amplitude transformer is connected to the energy-concentrating cavity via a sealing gasket.

[0016] Preferably, the transducer includes a first transducer and a second transducer, the first amplitude rod is installed at one end of the energy-concentrating cavity through the first transducer, and the second amplitude rod is installed at the other end of the energy-concentrating cavity through the second transducer.

[0017] Preferably, the vibration frequency of the first transducer is different from that of the second transducer.

[0018] Preferably, the amplitude transformer is provided with a vibrating head installed at its front end, and the vibrating head is provided with a guide groove on its outer surface along its axial direction.

[0019] Preferably, the guide channel is an inclined channel with an inclination angle of 5°-20°.

[0020] Preferably, the energy-concentrating cavity is also provided with a discharge port and a feed port on its side.

[0021] Another objective of this invention is to provide a dispersion device that, through series connection, achieves multi-stage dispersion, thereby improving the dispersion effect; and through parallel connection, it increases the processing capacity per unit time, thereby improving the dispersion efficiency.

[0022] The purpose of this utility model is achieved through such a technical solution, specifically providing a dispersion device, including a plurality of ultrasonic dispersion structures, wherein the plurality of ultrasonic dispersion structures are connected in series, in parallel or in a mixed manner.

[0023] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0024] The aforementioned ultrasonic dispersion structure and device includes a focusing cavity with a hollow chamber. A transducer and an amplitude transformer have coaxial through-holes that communicate with the cavity, allowing material to enter. As the material to be dispersed flows within the through-holes, the amplitude transformer vibrates under the transducer's influence, causing the material to vibrate within the through-holes. This not only pre-disperses the material but also essentially eliminates the adhesion force between the material and the inner wall of the through-holes, preventing material from adhering and remaining there. This stabilizes the conveying capacity and improves the dispersion effect. Connecting several ultrasonic dispersion structures in series, parallel, or in combination further enhances the dispersion effect and efficiency. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of an ultrasonic dispersion structure according to the present invention;

[0027] Figure 2 This is an enlarged schematic diagram of the through hole;

[0028] Figure 3 This is an enlarged schematic diagram of the flow guide channel;

[0029] Figure 4 A schematic diagram showing the transducers installed in pairs (feeding from the through hole and the feed port);

[0030] Figure 5 This is a schematic diagram of transducers installed in pairs (feeding through the through hole);

[0031] Figure 6 This is a schematic diagram of a series connection of a dispersion device;

[0032] Figure 7 This is a schematic diagram of the parallel connection of the distributed devices;

[0033] Figure 8 This is a schematic diagram of a hybrid configuration for a distributed device.

[0034] Reference numerals:

[0035] 1-Energy-concentrating cavity, 11-Cavity, 12-Discharge port, 13-Inlet port

[0036] 2-Transducer, 21-First transducer, 22-Second transducer

[0037] 3-Amplitude transducer, 31-First amplitude transducer, 32-Second amplitude transducer, 33-Vibrator head, 331-Guide groove, 34-Sealing gasket.

[0038] 4-Through hole, 41-Inner groove, 42-Lower opening, 43-Upper opening

[0039] 5-Transfer pump, 6-Material collection equipment. Detailed Implementation

[0040] Please see Figure 1 , Figure 2 and Figure 4 An ultrasonic dispersion structure includes: a focusing cavity 1, a transducer 2, and an amplitude transformer 3.

[0041] The energy-concentrating cavity 1 has a cavity 11, and the transducer 2 is connected to the energy-concentrating cavity 1. The amplitude transformer 3 is connected to the transducer 2 and is disposed in the energy-concentrating cavity 1. At least one set of amplitude transformers 3 is disposed at one end of the energy-concentrating cavity 1 through the transducer 2. The transducer 2 and the amplitude transformer 3 are provided with a coaxial through hole 4, which communicates with the cavity 11. The material enters the cavity 11 through the through hole 4. Specifically, the energy-concentrating cavity 1 is a hollow tube with a cavity 11 that mates with the amplitude transformer 3. The transducer 2 is connected to an external power source, and the upper side of the energy-concentrating cavity 1 is provided with a discharge port 12. Preferably, the transducer 2 and the amplitude transformer 3 are integrally formed, which facilitates the machining of the coaxial through hole 4 with high precision and reduces the material flow resistance. The through hole 4 has openings at both ends, namely an upper opening 43 and a lower opening 42. The opening in the transducer 2 is the lower opening 42, which is connected to the output port of the external conveying pump 5. The material to be dispersed is conveyed to the lower opening 42 by the conveying pump 5. The other opening of the through hole 4 is located at the end of the amplitude transformer 3, which is the upper opening 43, and the upper opening 43 communicates with the cavity 11. Preferably, the through hole 4 is opened along the axis center of the transducer 2 and the amplitude transformer 3; the transducer 2 is an ultrasonic transducer. Using existing technology, a flange is provided on the end side of the energy focusing cavity 1, and the end of the transducer 2 is fixed to the outer surface of the flange by hexagonal bolts.

[0042] Using the ultrasonic dispersion structure of this invention, an external power source drives the transducer 2 to work, which in turn drives the amplitude transformer 3. The delivery pump 5 delivers the material to be dispersed through the through-hole 4 into the energy-concentrating cavity 1. When the material to be dispersed flows within the through-hole 4, firstly, it moves along the direction from the lower opening 42 to the upper opening 43 due to the pressure from the delivery pump 5, entering the cavity 11; secondly, the amplitude transformer 3 is vibrated by the transducer 2, causing the material to be continuously vibrated within the through-hole 4, breaking up and dispersing some of the agglomerated material, achieving a pre-dispersion effect; thirdly, due to the vibration, the adhesion force of the material to the inner wall of the through-hole 4 is essentially eliminated, preventing the material from adhering to and remaining on the inner wall of the through-hole 4, thus avoiding blockage and ensuring stable delivery capacity; fourthly, as the material flows through the narrow through-hole 4, under the pressure of the delivery pump 5 and the force of the transducer 2, it achieves a concentrating and energy-concentrating effect, forcefully rushing out of the through-hole 4 into the cavity 11, resulting in a better dispersion effect. This structure avoids the problem of existing ultrasonic dispersion equipment simply placing the amplitude transformer in the middle of the material to be dispersed. In this placement method, the vibration amplitude gradually decreases outward from the diameter of the amplitude transformer axis, resulting in a larger difference in dispersion effect between the material far from the amplitude transformer and the material close to the amplitude transformer, and uneven dispersion.

[0043] Application Example 1

[0044] In the experiment of preparing microcapsules for coating vegetable oil, under the same conditions, the only difference was the addition of through holes 4 in the transducer 2 and the amplitude transformer 3. The material used was corn oil, and the coating material was a 15% PVA aqueous solution. When the material entered the focusing chamber 1 through the conventional inlet, a microscope revealed some slightly larger microcapsules inside. With the through hole 4 structure used, the material entered through the through hole 4, and the microscope showed that the capsule size was more uniform. The through hole 4 structure, due to the pre-dispersion force, resulted in better material dispersion.

[0045] Please see Figure 2 Furthermore, the diameter of the through hole 4 is 3-5mm. This invention uses the through hole 4 at the center of the transducer 2 and the amplitude transformer 3 to realize the material conveying channel. Subjected to the pressure of the conveying pump and the force of the transducer 2, the sidewalls of the transducer 2 and the amplitude transformer 3 need to withstand a certain pressure strength. Therefore, the opening diameter of the through hole 4 must allow for sufficient thickness to ensure the structural strength of the transducer 2 and the amplitude transformer 3. The diameter of the through hole 4 is in the range of 3-5mm. Preferably, the diameter of the through hole 4 is 4.5mm. A larger diameter not only makes it easier to process the through hole 4 and improves processing quality, but also allows for a larger outflow of material per unit time during use. If the diameter exceeds 4.5mm, the thickness of the sidewall is easily affected by the negative tolerance of the outer diameter of the transducer 2 and the amplitude transformer 3.

[0046] Please see Figure 2 Furthermore, an inner groove 41 is provided at the end of the through hole 4 furthest from the transducer 2. Specifically, an inner groove 41 is provided near the upper opening 43 of the through hole 4, and the inner groove 41 is a concave arc. The main purpose of providing the inner groove 41 is to concentrate the ejected material, increase the outlet pressure of the material, further increase the outlet velocity of the material, and improve the material dispersion efficiency and uniformity. Preferably, the diameter of the inner groove 41 is less than 3 mm.

[0047] Please see Figure 1 and Figure 2 Furthermore, the port of the energy-concentrating cavity 1 is horn-shaped, gradually decreasing in size from the port into the cavity 1, and the amplitude transformer 3 has a shape that matches the horn shape. Specifically, the diameter of the cavity 11 is slightly larger than the outer diameter of the amplitude transformer 3. With this structure, the amplitude transformer 3 moves smoothly, facilitating energy focusing.

[0048] Please see Figure 4Furthermore, the amplitude transformer 3 is connected to the focusing cavity 1 via a sealing gasket 34. Specifically, a sealing groove is provided on the outer wall of the amplitude transformer 3, and the sealing gasket 34 is installed in the sealing groove and installed in the focusing cavity 1 by interference fit. According to the Langevin transducer design concept, the length of the amplitude transformer 3 is half the wavelength of the transducer 2's emission frequency, and the sealing position between the amplitude transformer 3 and the focusing cavity 1 satisfies one-quarter wavelength of the transducer 2's emission frequency. The specific dimensions are calculated according to the length of the amplitude transformer 3 for different ultrasonic frequencies. The sealing structure allows the focusing cavity 1 to concentrate ultrasonic energy within a small space, resulting in better dispersion of materials.

[0049] Please see Figure 4 Furthermore, the transducer 2 is equipped with a first transducer 21 and a second transducer 22. The first amplitude transformer 31 is installed at one end of the energy-concentrating cavity 1 through the first transducer 21, and the second amplitude transformer 32 is installed at the other end of the energy-concentrating cavity 1 through the second transducer 22. Specifically, two sets of transducers 2 and amplitude transformers 3 are installed at opposite ends of the energy-concentrating cavity 1, with the two amplitude transformers 3 facing each other, and the entire structure is vertically installed. Adopting an up-and-down opposing structure, the materials at both ends move at the same speed, facing each other, and directly collide back and forth in two high-energy zones, maximizing the energy transferred to the materials. This results in the collision speed of the materials reaching twice that of a single amplitude transformer 3, accelerating the impact and dispersion effect. Figure 5 It should be noted that, depending on actual needs, the first transducer 21 and the first amplitude rod 31 are provided with through holes 4, or the first transducer 21 and the first amplitude rod 31, and the second transducer 22 and the second amplitude rod 32 are all coaxial through hole 4 structures. Different or the same materials flow into the energy-concentrating cavity 1 from the through holes 4 at the top and bottom at the same time to disperse, thereby increasing the application scenarios and improving the dispersion efficiency.

[0050] Furthermore, the vibration frequency of the first transducer 21 is inconsistent with the vibration frequency of the second transducer 22. Specifically, transducers 2 with different frequencies can be used, and different powers can be employed. The frequency composition includes all frequencies used by ultrasonic transducers, including but not limited to 20KHz, 28KHz, 35KHz, 40KHz, 80Khz, 1.7MHz, 3Mhz, and 5Mhz.

[0051] Application Example 2

[0052] The dispersion effect of agglomerated material crystals is compared under the action of the vibration frequency and power of the first transducer 21 and the vibration frequency and power of the second transducer 22.

[0053]

[0054] In summary:

[0055] In the first verification example, due to the maximum ultrasonic power of the device, the raw material was broken into 0.5nm particles, resulting in a good pulverization effect. It is suitable for materials that require further pulverization and dispersion.

[0056] In the second verification example, even with slightly weaker power, the material could still be crushed. Furthermore, due to the increased vibration frequency, the dispersion effect was slightly better, while the crushing effect was slightly weaker.

[0057] Verification Example 3 shows a significant frequency difference, which slightly damages the original crystal size of the material, but allows the material to be dispersed according to the original crystal size.

[0058] In Verification Example 4, the frequency difference is even greater, and it does not damage the size of the original crystals of the material, but only disperses the agglomerated state of the original crystal form.

[0059] Therefore, the higher the power, the stronger the effect on grinding and breaking up material particles; the greater the frequency difference, the better it can break up agglomerates and maintain the original crystalline structure of the material. In practical applications, the frequency and power can be selected according to the actual situation.

[0060] Please see Figure 1 and Figure 3 Furthermore, the amplitude transformer 3 is equipped with a vibrating head 33 installed at its front end, and the vibrating head 33 has a guide groove 331 on its outer surface along its axial direction. Specifically, the amplitude transformer 3 and the vibrating head 33 are integrally formed to enhance the strength of the vibrating head 33. The vibrating head 33 is cylindrical, with a solid center at the end of the vibrating head 33. The guide groove 331 is provided on the outer surface of the vibrating head 33 and is arranged along the axial direction of the vibrating head 33. The vibrating head 33 extends into the energy-concentrating cavity 1. Since the maximum vibration direction of the amplitude transformer 3 is axial movement, the vibrating head 33 drives the surrounding material to move along the axial direction of the amplitude transformer 3 and the end of the vibrating head 33, so that the material with higher solid content (agglomerated material) moves closer to the vibrating head 33 and the guide groove 331. The structure of the guide channel 331 increases the contact area with the material. A larger contact area allows for greater upward energy transfer. After the material flows along the guide channel 331 and the vibrator 33 out of the top, the end of the vibrator 33, being solid, further pushes and impacts the agglomerated material, thereby improving the material dispersion effect. This avoids the need for existing technologies that rely on increasing dispersion time and ultrasonic power, while also adding multiple large-amplitude nodes to the amplitude transformer.

[0061] In use, the material enters the cavity 11 through the through hole 4 and is dispersed simultaneously by the impact flow and ultrasonic energy. The dispersed material (light mass) moves upward along the energy-concentrating cavity 1 to the discharge port 11, while the undispersed agglomerates (heavy mass) flow back along the energy-concentrating cavity 1 to the root of the amplitude transformer, where they continue to undergo a second acceleration impact process under the guide groove 331 and the vibrator 33.

[0062] Application Example 3

[0063] The following experimental case compares the dispersion effect of nano-silica microspheres used as a dispersant for optical polarizers. The experimental conditions were 25% solid content, 15% PVB224 in ethyl acetate solution, and no dispersing aids were added. The experimental results demonstrate that the ultrasonic dispersion effect is significantly improved when the guide channel 331 is set.

[0064]

[0065] Please see Figure 3 Furthermore, the guide channel 331 is an inclined channel with an inclination angle of 5°-20°. Specifically, the inclination angle of the guide channel 331 is based on the generatrix of the vibrator head 33, and is the inclination angle between the guide channel 331 and the generatrix. Multiple sets of guide channels 331 are provided, evenly spaced on the outer surface of the vibrator head 33. Preferably, the number of guide channels 331 is four or six. The guide channels 331 follow an inclination direction that is left-handed for users in the Southern Hemisphere and right-handed for users in the Northern Hemisphere. This left-handed and right-handed grooving rule adapts to the rotation direction of the Earth's rotation vortex, minimizing unknown interference caused by the inconsistency between the direction of incompletely dispersed sedimented material and its upward direction during rotational sedimentation due to the Earth's rotation.

[0066] Because the vibrator head 33 is equipped with an inclined guide channel 331, the guide channel 331 divides the axial force F into two components: axial Fb and radial Fa. A larger Fa results in a smaller upward impact force on the material. Following the principle that the radial component Fa should not exceed 1 / 3, Tan(5°) = 0.087 and Tan(20°) = 0.36, therefore 20° is the upper limit of the tilt angle. Theoretically, less than 5° is also acceptable, but to balance the processing cost of the vibrator head 33 and the increase in surface area, 5° is the lower limit. Therefore, the tilt angle of the guide channel 331 is 5°-20°. Preferably, the tilt angle of the guide channel 331 is 9°, Tan(9°) = 0.15838. As shown in the following application example four, although the area increases when the tilt angle is greater than 9°, the change in particle size distribution is relatively slow, while the force on Fa is large. 9° is the optimal combination of the force of Fa and the change in particle size due to material dispersion.

[0067] Application Example 4

[0068] The following experimental case involves dispersing 15% silver betaine needle-like powder (single crystals are 10x1 micrometer needle-like crystals) in a 15% PVA1130 aqueous solution for 5 minutes. Under the same conditions, the particle size at the following angles of the guide channel is as follows:

[0069] 5° right-handed groove 9° right-handed groove 10° right-handed groove 20° right-handed groove D70 particle size distribution (micrometers) 18.2 15.1 14.9 13.3 Fa 0.08749F 0.15838F 0.17633F 0.36397F

[0070] F is the force moving along the axial direction of the amplitude transformer; Fa is the radial component of the force.

[0071] Preferably, the width of the guide groove 331 is 1 / 10 to 1 / 8 of the circumference of the vibrator head 33, and the depth is 1 / 6 to 1 / 4 of the radius of the vibrator head 33. Preferably, the guide groove 331 is an arc-shaped inner groove, with the arc diameter being 1 / 8 of the circumference of the vibrator head 33 and the groove depth being 1 / 4 of the radius of the vibrator head 33. This ensures that the area is maximized without directly changing the angle. Directly changing angles may create unnecessary sound wave reflections and diffractions in parallel spaces, resulting in an irregular vibration field inside the energy-concentrating cavity 1, affecting the particle size uniformity of the dispersed material.

[0072] Please see Figure 4 Furthermore, the energy-concentrating cavity 1 is also provided with a feed inlet 13. Specifically, there are multiple feed inlets 13, which are spaced apart on the lower side of the energy-concentrating cavity 1. The purpose of adding feed inlets 13 is to allow multiple materials that need to be dispersed to be simultaneously and separately fed into the energy-concentrating cavity 1. For example, oil enters through the through hole 4, and water enters through the feed inlet 13. After the oil is sprayed out through the through hole 4, it forms oil droplets of uniform size at the micron level, which are directly sprayed into the water. This can greatly accelerate the dispersion speed. This water-oil mixture is then pushed upward by the bottom amplitude rod 3 and collides with the upper dispersion head to further reduce the size of the oil droplets, thus quickly achieving a nanometer-level dispersion effect.

[0073] Multiple feed ports 13 are provided to facilitate the transfer of materials from one ultrasonic dispersion structure to another. Pre-dispersed materials enter through the through-hole 4, while other feed ports 13 deliver a second type of material requiring dispersion, achieving mixed dispersion of the three materials and expanding the structure's application scenarios. In actual use, solid materials or materials requiring pre-dispersion can be introduced into the focusing cavity 1 through the through-hole 4, while liquids can enter the focusing cavity 1 through the feed ports 13.

[0074] A dispersion device includes a plurality of ultrasonic dispersion structures, wherein the plurality of ultrasonic dispersion structures are connected in series, in parallel, or in a mixed manner.

[0075] Please see Figure 6 Several ultrasonic dispersion structures are connected in series. Specifically, the cavity 11 of the first ultrasonic dispersion structure is connected to the output port of the external delivery pump 5, the discharge port 12 of the first ultrasonic dispersion structure is connected to the cavity 11 of the next ultrasonic dispersion structure, and so on, with the discharge port 12 of the last ultrasonic dispersion structure connected to the material collection device 6. Preferably, the vibration frequency and power of the transducer 21 of each ultrasonic dispersion structure are the same or different depending on the actual application. The ultrasonic dispersion structures are connected in series, and the material is dispersed in multiple stages, resulting in a uniform dispersion effect.

[0076] Please see Figure 7Several ultrasonic dispersion structures are connected in parallel. Specifically, the cavity 11 of each ultrasonic dispersion structure is connected to the output port of the external delivery pump 5, and the discharge port 12 of each ultrasonic dispersion structure is connected to the material collection structure 6. Preferably, the transducer 21 of each ultrasonic dispersion structure has the same vibration frequency and power. This structure is used to increase the processing capacity per unit time and improve efficiency.

[0077] Please see Figure 8 Several ultrasonic dispersion structures are connected in a hybrid configuration. Specifically, multiple sets of ultrasonic dispersion structures are provided, each set containing several ultrasonic dispersion structures connected in series, with the sets connected in parallel to form a hybrid configuration. This structure not only increases the processing capacity per unit time and improves efficiency, but also ensures uniform dispersion through multi-stage dispersion.

[0078] This invention relates to an ultrasonic dispersion structure and device. The energy-concentrating cavity 1 has a cavity 11. The transducer 2 and the amplitude transformer 3 are coaxially connected by a through hole 4, which communicates with the cavity 11. Material enters the cavity 11 through the through hole 4. When the material to be dispersed flows within the through hole 4, it is subjected to vibration, which not only pre-disperses the material but also essentially eliminates the adhesion force between the material and the inner wall of the through hole 4. The material does not adhere to or remain on the inner wall of the through hole, thus stabilizing the conveying capacity and improving the dispersion effect. An inner groove 41 is provided in the through hole 4 to concentrate the ejected material, increasing the outlet pressure and further increasing the outlet velocity, thereby improving the dispersion efficiency and uniformity. A guide groove 331 is provided in the vibrator head 33. By adjusting the inclination angle, width, depth, and number of grooves in the guide groove 331, the contact area with the material is increased. A larger contact area allows for greater upward energy transfer, thereby improving the material dispersion effect. By employing a first ultrasonic transducer 21 and a second ultrasonic transducer 22 with different frequencies, the collision velocity of the material reaches twice that of a single amplitude transformer. Simultaneously, the combination of two ultrasonic waves of different frequencies avoids the formation of a static standing wave region within the energy-concentrating cavity 1, accelerating impact dispersion and resulting in uniform dispersion. Connecting several ultrasonic dispersion structures in series, parallel, or in combination further enhances the dispersion effect and efficiency.

[0079] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific implementation method of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of the spirit of this utility model should be included within the protection scope of this utility model.

Claims

1. An ultrasonic dispersion structure, characterized in that, include: Concentrating cavity (1); with cavity (11) The transducer (2) is connected to the energy-concentrating cavity (1); as well as Amplitude rod (3) is connected to transducer (2), and the amplitude rod (3) is set in energy-concentrating cavity (1); At least one set of amplitude rods (3) is set at one end of the energy-concentrating cavity (1) through a transducer (2). The transducer (2) and amplitude rods (3) are provided with a coaxial through hole (4). The through hole (4) is connected to the cavity (11). The material enters the cavity (11) through the through hole (4).

2. The ultrasonic dispersion structure according to claim 1, characterized in that, The diameter of the through hole (4) is 3-5 mm.

3. The ultrasonic dispersion structure according to claim 1 or 2, characterized in that, An inner groove (41) is provided at the end of the through hole (4) away from the transducer (2).

4. The ultrasonic dispersion structure according to claim 3, characterized in that, The inner groove (41) is arc-shaped and its diameter is less than 3mm.

5. The ultrasonic dispersion structure according to claim 1, 2, or 4, characterized in that, The port of the energy-concentrating cavity (1) is horn-shaped, and gradually becomes smaller from the port into the energy-concentrating cavity (1). The amplitude rod (3) has a shape that matches the horn shape.

6. The ultrasonic dispersion structure according to claim 1, 2, or 4, characterized in that, The amplitude rod (3) is connected to the energy-concentrating cavity (1) through a sealing gasket (34).

7. The ultrasonic dispersion structure according to claim 5, characterized in that, The amplitude rod (3) is connected to the energy-concentrating cavity (1) through a sealing gasket (34).

8. The ultrasonic dispersion structure according to claim 1, 2, 4 or 7, characterized in that, The transducer (2) is provided with a first transducer (21) and a second transducer (22). The first amplitude rod (31) is installed at one end of the energy focusing cavity (1) through the first transducer (21), and the second amplitude rod (32) is installed at the other end of the energy focusing cavity (1) through the second transducer (22).

9. The ultrasonic dispersion structure according to claim 8, characterized in that, The vibration frequency of the first transducer (21) is inconsistent with the vibration frequency of the second transducer (22).

10. The ultrasonic dispersion structure according to claim 1, 2, 4, 7 or 9, characterized in that, The amplitude rod (3) is provided with a vibrating head (33) installed at its front end, and the vibrating head (33) is provided with a guide groove (331) on its outer surface along its axial direction.

11. The ultrasonic dispersion structure according to claim 10, characterized in that, The guide channel (331) is an inclined channel with an inclination angle of 5°-20°.

12. The ultrasonic dispersion structure according to claim 1, 2, 4, 7, 9 or 11, characterized in that, The energy-concentrating cavity (1) is also provided with a feed inlet (13) on the side.

13. A dispersing device, characterized in that, It includes several ultrasonic dispersion structures as described in any one of claims 1 to 12, wherein the ultrasonic dispersion structures are connected in series, in parallel, or in a mixed manner.

Images