An ultrasonic-actuated bubble generating device

Abstract

The present invention relates to the field of flotation mineralization devices, and in particular to an ultrasonic bubble generating device, which includes a shell, a bubble generating device, a bubble rising control device and a secondary crushing device. The bubble generating device includes a first ultrasonic vibrator, a first vibrating plate, an airway and a bubble generating needle. The liquid channel passes through an installation channel, and the bubble generating needle is arranged in the installation channel. A plurality of air holes are arranged on the installation channel and the bubble generating needle. Gas forms bubbles through the airway, the bubble generating needle and the air holes on the installation channel. The bubble rising control device and the secondary crushing device control the speed and volume of the generated bubbles through an ultrasonic vibration device. The present invention uses ultrasonic action to generate bubbles at the bottom, ultrasonic action to control the rising speed of the bubble group in the area and the interaction between the bubbles during the rising process at the middle part, and a matrix-type breaking net is used at the top to perform secondary crushing on the tiny bubbles in the bubble group to meet the requirements for the diameter of the bubble group.

Description

Technical Field

[0001] The invention relates to the field of flotation mineralization devices, in particular to an ultrasonic bubble generating device. Background Art

[0002] Due to the unique physical properties of microbubbles, their applications have expanded to many fields such as energy, environment, cleaning, water treatment, agricultural plant cultivation, chemistry, medical drugs and aquaculture. Ultrasonic technology has extremely important research prospects for the generation of bubbles and their control after generation, especially in sewage treatment, mineral flotation and bubble transportation. By controlling and improving the size and volume of the generated microbubbles, the flotation dynamic characteristics after the bubbles are generated are affected, which is of great significance for mineral flotation. At present, the main methods for generating microbubbles are the Venturi method and the micro-dispersion method. The shearing effect of the water flow is mainly used to generate microbubbles, and the size of the bubbles generated is uncontrollable. The generation of bubbles in the former is greatly limited by the negative pressure generated by the water flow, and the generation of bubbles in the latter is limited by the pore size of the material. Therefore, it is impossible to accurately generate the microbubbles required. Summary of the Invention

[0003] The present invention aims to solve the above problems and provides an ultrasonic bubble generating device, which adopts the following technical solutions:

[0004] An ultrasonic bubble generating device comprises a shell, a bubble generating device, a bubble rising control device and a secondary crushing device, wherein the shell is provided with an input interface, a liquid channel, a bubble group rising control area, a secondary crushing area and a bubble output interface which are connected in sequence from bottom to top, and the bubble generating device, the bubble rising control device and the secondary crushing device are respectively arranged in the liquid channel, the bubble group rising control area and the secondary crushing area; the bubble generating device comprises a first ultrasonic vibrator, a first vibrating plate, an airway and a bubble generating needle which are fixedly connected in sequence, the liquid channel is arranged in a vertical direction, wherein the liquid channel passes through an installation channel which is fixedly arranged in a horizontal direction, the bubble generating needle is arranged in the installation channel, and a plurality of air holes are arranged on the side wall of the installation channel, the first ultrasonic vibrator drives the bubble generating needle to move along its axial direction, and a plurality of air holes are arranged on the bubble generating needle, and the gas forms bubbles through the airway, the bubble generating needle and the air holes on the installation channel; the bubble rising control device and the secondary crushing device control the speed and volume of the generated bubbles through the ultrasonic vibration device.

[0005] On the basis of the above solution, the bubble rising control device includes a second ultrasonic vibrator, a second vibration sheet and an ultrasonic vibration plate connected in sequence, and the ultrasonic vibration plate is arranged in the bubble group rising control area in the shell along the vertical direction.

[0006] On the basis of the above solution, the second ultrasonic vibrator drives the ultrasonic vibration plate to vibrate according to different frequencies through the second vibration sheet, thereby forming different sound pressures in the bubble group rising control area.

[0007] Preferably, the secondary crushing device includes a third ultrasonic vibrator, an ultrasonic amplitude rod and a crushing matrix plate. The ultrasonic amplitude rod is fixedly connected to the third ultrasonic vibrator. There are multiple crushing matrix plates, which are fixedly arranged on the ultrasonic amplitude rod in the horizontal direction. A number of crushing holes are provided on the crushing matrix plate.

[0008] Preferably, a bubble observation area is set between the bubble group rising control area and the secondary crushing area, and an observation window for observing the bubble group rising control area and the secondary crushing area is set on the side wall of the shell at the bubble observation area.

[0009] Preferably, the number of the liquid channels is multiple and distributed in a rectangular shape, and the number of the bubble generating needles is multiple and distributed in orthogonal directions.

[0010] Preferably, a base is provided at the bottom of the shell, the first ultrasonic vibrator is fixedly mounted on the base through a first vibrator mounting plate, a second vibrator mounting plate is fixedly connected to the shell, and the second ultrasonic vibrator and the third ultrasonic vibrator are fixedly mounted on the second vibrator mounting plate.

[0011] Based on the above solution, the input interface is set at the bottom of the base.

[0012] The beneficial effects of the present invention are as follows: the bottom part uses ultrasonic action to generate bubbles, utilizes the cooperation of the bubble generating needle group and its mounting hole, and adds ultrasonic-assisted high-frequency vibration, thereby generating more high-quality tiny bubbles in the bubble generating area; the middle part uses an ultrasonic bubble rising control device, which controls the vibration of the ultrasonic vibration plate through the ultrasonic vibrator to generate an ultrasonic effect in the area, controls the rising speed of the bubble group in the area and the interaction between the bubbles during the rising process; the upper part uses a micro-bubble matrix breaking net that can vibrate at high frequency, which can perform secondary crushing of the tiny bubbles in the generated bubble group, further refine the bubble diameter in the bubble group, and meet the requirements for the bubble group diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : Schematic diagram of the structure of the present invention;

[0014] Figure 2 : Structural cross-sectional view of the present invention;

[0015] Figure 3 : Schematic diagram of the internal structure of the present invention (without the housing);

[0016] Figure 4 : Cross-sectional view of the shell structure of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and examples:

[0018] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0021] like Figures 1 to 4 As shown, an ultrasonic bubble generating device includes a housing 1, a bubble generating device, a bubble rising control device and a secondary crushing device, as shown in FIG. Figure 4As shown, the housing 1 is provided with, from bottom to top, an input port 12, a liquid channel 13, a bubble group rise control area 15, a secondary crushing area 18, and a bubble output port 19. The bubble generating device, bubble rise control device, and secondary crushing device are respectively provided in the liquid channel 13, the bubble group rise control area 15, and the secondary crushing area 18. A base 11 is provided at the bottom of the housing 1, and the input port 12 is located at the bottom of the base 11. Liquid can be introduced into the housing 1 through the input port 12 to generate bubbles with the liquid. Alternatively, the input port 12 can be sealed after liquid is introduced, allowing the device to be used solely for bubble generation. The base 11 is provided with a mounting groove for a sealing gasket at the input port 12.

[0022] The bubble generating device includes a first ultrasonic vibrator 21, a first vibrating plate 22, an air channel 23 and a bubble generating needle 25 that are fixedly connected in sequence. The liquid channel 13 is arranged in the vertical direction, and passes through the mounting channel 14 fixedly arranged in the horizontal direction. The bubble generating needle 25 is arranged in the mounting channel 14, and a plurality of air holes are provided on the side wall of the mounting channel 14. The first ultrasonic vibrator 21 is fixedly mounted on the base 11 through the first vibrator mounting plate 26. The first ultrasonic vibrator 21 drives the bubble generating needle 25 to move along its axial direction. The bubble generating needle 25 is provided with a plurality of air holes. The gas forms bubbles through the air channel 23, the bubble generating needle 25 and the air holes on the mounting channel 14. Specifically, the first ultrasonic vibrator 21 receives an external excitation signal and, through its internal piezoelectric ceramic plate, drives the first vibrating plate 22 and air channel 23 to produce regular, controllable vibrations. This drives the bubble generating needle 25 to perform a delayed axial reciprocating motion, thereby causing the bubble generating needle 25 to continuously overlap and stagger with the air holes in the mounting channel 14 in a reciprocating manner, forming a high-frequency, continuously opening and closing capillary pore. This continuously cuts the gas input from the air channel 23 into the bubble generating needle 25, thereby forming microbubbles. Preferably, the liquid channels 13 are multiple and arranged in a rectangular pattern, and the bubble generating needles 25 are multiple and distributed in orthogonal directions to improve the efficiency of microbubble generation. There are two air channels 23, which are adjacent to each other and supply gas inward through the same air supply pipe 24.

[0023] The bubble rising control device and the secondary crushing device control the speed and volume of the generated bubbles through the ultrasonic vibration device. Figure 2 and Figure 3As shown, the bubble rise control device includes a second ultrasonic vibrator 31, a second vibrating plate 33, and an ultrasonic vibrating plate 34, which are connected in sequence. The ultrasonic vibrating plate 34 is vertically disposed within the bubble group rise control region 15 within the housing 1. The second ultrasonic vibrator 31 drives the ultrasonic vibrating plate 34 to vibrate at different frequencies via the second vibrating plate 33, thereby generating different sound pressures within the bubble group rise control region 15. The different sound pressure values act on the bubbles or bubble groups within this region, causing the bubbles within this region to produce an ultrasonic effect, which can reduce the bubble rise speed and further stimulate cavitation bubbles within the liquid.

[0024] The secondary fragmentation device includes a third ultrasonic vibrator 41, an ultrasonic amplitude rod 42, and a fragmentation matrix plate 43. The ultrasonic amplitude rod 42 is fixedly connected to the third ultrasonic vibrator 41. Multiple fragmentation matrix plates 43 are horizontally fixedly arranged on the ultrasonic amplitude rod 42, and are provided with a plurality of fragmentation holes. As bubbles pass upward through the fragmentation matrix plates 43, the vibration of the fragmentation matrix plates 43 utilizes the fragmentation holes to secondary fragment larger bubbles within the bubble cluster, resulting in smaller bubbles ultimately discharged from the bubble output port 19. A second vibrator mounting plate 32 is fixedly connected to the housing 1, to which the second and third ultrasonic vibrators 31, 41 are fixedly mounted.

[0025] Preferably, a bubble observation area 16 is set between the bubble group rising control area 15 and the secondary crushing area 18, and an observation window 17 for observing the bubble group rising control area 15 and the secondary crushing area 18 is set on the side wall of the shell 1 at the bubble observation area 16. The observation window 17 is a transparent observation window, which can facilitate the observation of continuously rising bubbles or bubble groups, and can observe the generation effect of bubbles or bubble groups in the bubble rising control device below and the ultrasonic-assisted bubble secondary crushing device above, so as to facilitate the adjustment of the device.

[0026] The present invention has been described above by way of examples, but the present invention is not limited to the above specific embodiments. Any changes or modifications based on the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An ultrasonic bubble generating device, characterized in that: The invention comprises a shell (1), a bubble generating device, a bubble rising control device and a secondary crushing device, wherein the shell (1) is provided with an input interface (12), a liquid channel (13), a bubble group rising control area (15), a secondary crushing area (18) and a bubble output interface (19) in order from bottom to top, and the bubble generating device, the bubble rising control device and the secondary crushing device are respectively provided at the liquid channel (13), the bubble group rising control area (15) and the secondary crushing area (18); the bubble generating device comprises a first ultrasonic vibrator (21), a first vibrating plate (22), an airway (23) and The bubble generating needle (25) is provided in the vertical direction, wherein the liquid channel (13) passes through the mounting channel (14) fixedly provided in the horizontal direction, the bubble generating needle (25) is provided in the mounting channel (14), a plurality of air holes are provided on the side wall of the mounting channel (14), the first ultrasonic vibrator (21) drives the bubble generating needle (25) to move along its axial direction, a plurality of air holes are provided on the bubble generating needle (25), and gas forms bubbles through the air channel (23), the bubble generating needle (25) and the air holes on the mounting channel (14); the bubble rising control device and the secondary crushing device control the speed and volume of the generated bubbles through the ultrasonic vibration device; The bubble rising control device comprises a second ultrasonic vibrator (31), a second vibrating sheet (33), and an ultrasonic vibrating plate (34) connected in sequence, wherein the ultrasonic vibrating plate (34) is arranged in a vertical direction in a bubble group rising control area (15) in the housing (1); The second ultrasonic vibrator (31) drives the ultrasonic vibration plate (34) to vibrate at different frequencies through the second vibration plate (33), thereby forming different sound pressures in the bubble group rising control area (15); The secondary crushing device comprises a third ultrasonic vibrator (41), an ultrasonic amplitude rod (42) and a crushing matrix plate (43), wherein the ultrasonic amplitude rod (42) is fixedly connected to the third ultrasonic vibrator (41), the crushing matrix plates (43) are multiple in number and fixedly arranged on the ultrasonic amplitude rod (42) in the horizontal direction, and a plurality of crushing holes are provided on the crushing matrix plates (43).

2. The ultrasonic bubble generating device according to claim 1, characterized in that: A bubble observation area (16) is provided between the bubble group rising control area (15) and the secondary crushing area (18), and an observation window (17) for observing the bubble group rising control area (15) and the secondary crushing area (18) is provided on the side wall of the shell (1) at the bubble observation area (16).

3. The ultrasonic bubble generating device according to claim 1, characterized in that: The number of the liquid channels (13) is multiple and distributed in a rectangular shape, and the number of the bubble generating needles (25) is multiple and distributed in orthogonal directions.

4. The ultrasonic bubble generating device according to claim 1, characterized in that: A base (11) is provided at the bottom of the shell (1); the first ultrasonic vibrator (21) is fixedly mounted on the base (11) via a first vibrator mounting plate (26); a second vibrator mounting plate (32) is fixedly connected to the shell (1); and the second ultrasonic vibrator (31) and the third ultrasonic vibrator (41) are fixedly mounted on the second vibrator mounting plate (32).

5. The ultrasonic bubble generating device according to claim 4, characterized in that: The input interface (12) is arranged at the bottom of the base (11).

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