Ultrasonic atomization dust settling device

Abstract

The invention discloses an ultrasonic atomization dust settling device, which belongs to the technical field of air pollution control equipment, and comprises a spray cylinder, a flow dividing cylinder, a flow guide assembly and an ultrasonic spray array, one end of the spray cylinder is an air inlet, and the other end is an air outlet; the flow dividing cylinder is arranged in the air outlet and is coaxial with the spraying cylinder, a cavity between the outer wall of the flow dividing cylinder and the inner wall of the spraying cylinder forms a wall-attached airflow cavity, and a jet airflow cavity is formed in the inner side of the flow dividing cylinder. The flow dividing cylinder is arranged in the spraying cylinder and can divide airflow generated by the fan in the spraying cylinder into two paths, one path is sprayed out of the wall-attached airflow cavity, the other path is sprayed out of the jet airflow cavity, a wall-attached flowing air wall is formed on the inner wall of the air outlet, water mist is blocked by the air wall and does not collide with the inner wall of the air outlet, and therefore loss generated when the water mist is sprayed out is reduced; the sprayed water mist is more dense, the probability that dust in the atmosphere makes contact with the water mist is increased, dust falling and dust suppression are achieved, and atmospheric flying dust pollution is controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of air pollution control equipment, and particularly relates to an ultrasonic atomization dust reduction device. Background Art

[0002] At present, in order to protect the atmospheric environment and reduce the dust generated at construction sites, mine sites or roads, etc., dust removal and reduction devices are often used to eliminate the floating dust in the air. These dust reduction devices usually use water as a separation agent to separate and remove dust from the air. However, the existing dust reduction devices still have defects. For example, a dust removal device for mine mining disclosed in a Chinese invention with the application number 2018100931105 is provided with a water supply and atomization system. The water outlet pipe is connected to an ultrasonic atomization nozzle. The nozzle combines an ultrasonic generator and an air compressor to atomize water and mix it with compressed air to form high-pressure atomized water, which is transported through a high-pressure pipe to the nozzle inside the air supply cylinder. The air supply cylinder sprays the high-pressure atomized water into the dust area to achieve dust reduction.

[0003] The above solution has the following defects: When the water mist generated by the ultrasonic atomization nozzle passes through the water outlet pipe, due to the narrowing of the channel and the relatively fast flow rate, some water mists will collide with each other and with the pipe wall, and re-condense into water and flow back, resulting in the insufficient utilization of the water mist generated by the ultrasonic atomization nozzle. Summary of the Invention

[0004] Aiming at the above existing technical deficiencies, the purpose of the present invention is to provide an ultrasonic atomization dust reduction device. By setting a flow splitting cylinder and a guiding component, a wall-attached airflow can be formed at the air outlet, blocking the water mist from hitting the inner wall of the air outlet, and at the same time facilitating the adjustment of the water mist spraying range and improving the dust reduction effect.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides an ultrasonic atomization dust reduction device, including: A spray cylinder, one end of the spray cylinder is an air inlet, and the other end is an air outlet; A flow splitting cylinder, the flow splitting cylinder is arranged inside the air outlet and is coaxial with the spray cylinder. The cavity between the outer wall of the flow splitting cylinder and the inner wall of the spray cylinder forms a wall-attached airflow cavity, and the inner side of the flow splitting cylinder forms a jet airflow cavity; A guiding component, the guiding component is arranged inside the flow splitting cylinder. The guiding component includes a plurality of guiding vanes, and the plurality of guiding vanes are circumferentially and evenly distributed around the axis of the flow splitting cylinder; An ultrasonic spray array, arranged on the side of the guiding component away from the air outlet, for generating water mist; Wherein, a fan for supplying air to the jet airflow cavity and the wall-attached airflow cavity is arranged at the air inlet of the spray cylinder, and the airflow speed in the wall-attached airflow cavity is greater than the airflow speed in the jet airflow cavity; An adjusting mechanism for adjusting the angle of the guiding vanes is arranged on the spray cylinder.

[0006] Preferably, the adjusting mechanism includes: A toothed ring rotatably mounted on the spray tube and coaxial with the spray tube; A plurality of rotating shafts, with a plurality of guide vanes respectively fixed on the plurality of rotating shafts, and the rotating shafts are rotatably mounted on the spray tube; A plurality of first gears, with the plurality of first gears respectively rotatably mounted at the ends of the plurality of rotating shafts outside the spray tube; Wherein, the toothed ring meshes with all the first gears. When the toothed ring rotates, all the first gears rotate and drive the guide vanes to rotate around the rotating shafts, changing the flow direction.

[0007] Preferably, a guide ball is fixed inside the flow dividing cylinder, and the center of the guide ball is located on the axis of the flow dividing cylinder; a concave surface that fits the surface of the guide ball is provided at one end of the guide vane close to the guide ball.

[0008] Preferably, the rotating shaft is at the symmetric center of the guide vane, and the axis of the rotating shaft passes through the center of the guide ball.

[0009] Preferably, the ultrasonic spray array includes: A plurality of deflecting shafts rotatably mounted on the spray tube, and the deflecting shafts and the rotating shafts are staggered; A plurality of ultrasonic spray units respectively arranged at one ends of the plurality of deflecting shafts inside the flow dividing cylinder; each ultrasonic spray unit includes a plurality of ultrasonic spray heads.

[0010] Preferably, a second gear meshing with the toothed ring is fixed at one end of the deflecting shaft extending out of the spray tube. When the toothed ring rotates, the deflecting shaft rotates at the same speed as the rotating shaft.

[0011] Preferably, a water supply ring is arranged outside the spray tube, a plurality of first sub-water pipes are connected to the water supply ring, a second sub-water pipe is fixed on the deflecting shaft, the ultrasonic spray heads are installed on the second sub-water pipe, the first sub-water pipe passes through the tube walls of the spray tube and the flow dividing cylinder, and the first sub-water pipe and the second sub-water pipe are communicated through a corrugated pipe. Preferably, an annular concave portion is provided at one end of the spray tube close to the air outlet, the air outlet is in the shape of an outwardly expanding horn, and the distance between the inner wall of the concave portion and the flow dividing cylinder is less than the distance between the inner wall of the spray tube and the flow dividing cylinder.

[0012] Preferably, the spray end of the ultrasonic spray array extends out of the flow dividing cylinder; one end of the flow dividing cylinder away from the fan extends out of the narrowest part of the concave portion and is inside the air outlet.

[0013] Preferably, a swivel base is arranged below the spray tube, a hinge seat is fixed on the swivel base, the spray tube is hinged on the hinge seat, a push rod is hinged on the swivel base, and one end of the push rod away from the swivel base is hinged on the spray tube.

[0014] The beneficial effects of the present invention are as follows: In the present invention, a flow dividing cylinder is arranged inside the spray barrel. The flow dividing cylinder can divide the airflow generated by the fan inside the spray barrel into two paths. One path is ejected from the wall-attached airflow cavity, and the other path is ejected from the jet airflow cavity. Since the flow velocity of the airflow in the wall-attached airflow cavity is faster than that in the jet airflow cavity, a wall-attached air wall is formed on the inner wall of the air outlet. When the airflow ejected from the jet airflow cavity blows the water mist generated by the ultrasonic spray array out of the air outlet, the water mist is blocked by the air wall and will not collide with the inner wall of the air outlet, thereby reducing the loss when the water mist is ejected, making the ejected water mist denser, increasing the probability of contact between the dust in the atmosphere and the water mist, and thus playing a role in dust reduction and suppression; a plurality of guide vanes are arranged inside the flow dividing cylinder. The guide vanes are evenly distributed on the circumferential inner wall of the flow dividing cylinder. The inclination angle of the guide vanes can be adjusted through an adjustment mechanism. When the plane where the guide vanes are located coincides with the axis line of the flow dividing cylinder, the airflow blows directly out of the jet airflow cavity. At this time, the water mist ejection is relatively concentrated and the water mist can be ejected to a farther distance. When the guide vanes are inclined at a certain angle, the airflow can be guided to rotate, making the airflow ejected from the flow dividing cylinder have a tendency of rotational divergence, so that the water mist is more divergent when blown out, increasing the ejection range, thereby increasing the area covered by the water mist, enabling the large-range atmospheric floating dust pollutants to contact the water mist, causing the floating dust particles to become heavier and settle, and improving the effect of air pollution control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a front-view perspective view of an ultrasonic atomization dust reduction device provided by an embodiment of the present invention.

[0017] Figure 2 is Figure 1 a partial enlarged view of part A in

[0018] Figure 3 It is a rear-view perspective view of an ultrasonic atomization dust reduction device provided by an embodiment of the present invention.

[0019] Figure 4 It is a front view of an ultrasonic atomization dust reduction device provided by an embodiment of the present invention in the direct injection state.

[0020] Figure 5The front view of an ultrasonic atomization dust suppression device provided by an embodiment of the present invention in a swirling spray state (the fan and grid are omitted in the figure).

[0021] Figure 6 The cross-sectional view of an ultrasonic atomization dust suppression device provided by an embodiment of the present invention.

[0022] Figure 7 For Figure 6 The partial enlarged view at position B in

[0023] Explanation of reference numerals: 1. Spray barrel, 2. Air inlet, 3. Air outlet, 4. Shunt barrel, 5. Wall-attached air flow chamber, 6. Jet air flow chamber, 7. Deflector, 8. Fan, 9. Tooth ring, 10. Rotating shaft, 11. Gear one, 12. Deflecting ball, 13. Direction-changing shaft, 14. Ultrasonic spray unit, 15. Ultrasonic spray head, 16. Gear two, 17. Water supply ring, 18. Sub-water pipe one, 19. Sub-water pipe two, 20. Bellows, 21. Concave part, 22. Rotary seat, 23. Hinge seat, 24. Push rod, 25. Grid. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1: As Figures 1 to 7 shown, Embodiment 1 of the present invention provides an ultrasonic atomization dust suppression device for promoting the settlement of floating dust in the air, including a spray barrel 1. One end of the spray barrel 1 is an air inlet 2, and the other end is an air outlet 3. A protective grid 25 is fixed at the air inlet 2. The spray barrel 1 is placed horizontally, and a rotary seat 22 is provided at its bottom. The rotary seat 22 includes an inner ring and an outer ring rotatably installed on the inner ring. A positioning hole is fixed on the inner ring and can be fixed on a mobile device or other bases. An articulated seat 23 is fixedly installed on the outer ring, and a push rod 24 is articulated at the same time. The push rod 24 can be a hydraulic rod or an electric push rod 24. The bottom of the outer wall of the spray barrel 1 is articulated at the articulated seat 23, and the end of the push rod 24 away from the rotary seat 22 is articulated on the spray barrel 1. Through the above settings, the outer ring can be rotated to adjust the orientation of the spray barrel 1, and the push rod 24 is started to change the extension length of the push rod 24 to adjust the inclination angle of the spray barrel 1.

[0026] As Figure 6 And Figure 7As shown in the figure, a flow dividing cylinder 4 is fixedly installed in the spray tube 1 through a bracket. The flow dividing cylinder 4 is a hollow cylinder with both ends open, and the axis of the flow dividing cylinder 4 is collinear with the axis of the spray tube 1. The part of the spray tube 1 near the air outlet 3 contracts inward to form an annular concave part 21, and the air outlet 3 presents a flared shape that expands outward. From Figure 6 and Figure 7 it can be seen that an attached-wall air flow chamber 5 is formed between the outer wall of the flow dividing cylinder 4 and the inner wall of the spray tube 1. The diameter of the attached-wall air flow chamber 5 is the smallest at the narrowest part of the concave part 21. At the same time, one end of the flow dividing cylinder 4 far from the air outlet 3 extends into the air outlet 3 and is located at a position of the air outlet 3 close to the concave part 21. A fan 8 is arranged at one end of the spray tube 1 near the air inlet 2, and a jet air flow chamber 6 is formed inside the flow dividing cylinder 4. The fan 8 sends air to the attached-wall air flow chamber 5 and the jet air flow chamber 6. The diameter of the attached-wall air flow chamber 5 contracts from large to small, and the space gradually decreases, so the air flow velocity gradually increases. And because the size of the jet air flow chamber 6 is relatively uniform, the change in air flow velocity is relatively small. This makes the air flow velocity in the attached-wall air flow chamber 5 greater than the air flow velocity in the jet air flow chamber 6, forming an attached-wall air wall on the inner wall of the air outlet 3.

[0027] An ultrasonic spray unit 14 is arranged at the air outlet end of the flow dividing cylinder 4, which can spray water mist. The sprayed water mist is pushed out from the end of the flow dividing cylinder 4 by the air flow in the jet air flow chamber 6. Due to the blocking of the attached-wall air wall, the sprayed water mist will not splash onto the inner wall of the air outlet 3, thus avoiding the waste of water mist.

[0028] In order to better guide the air flow sprayed out from the jet air flow chamber 6, a flow guiding component is arranged in the flow dividing cylinder 4 in the present invention. As Figures 4 to 6 shown, the flow guiding component designed in the present invention includes twelve rotating shafts 10 and twelve flow guiding vanes 7 that are circumferentially and evenly distributed around the axis of the flow dividing cylinder 4. The rotating shafts 10 are also circumferentially and evenly distributed around the axis of the flow dividing cylinder 4. The rotating shafts 10 are perpendicular to the axis of the flow dividing cylinder 4, and the rotating shafts 10 are located on the symmetry central axis of the flow guiding vanes 7. In this way, when the rotating shafts 10 rotate, the flow guiding vanes 7 will rotate around the corresponding rotating shafts 10 as the central axis, thereby changing the inclination angle to adjust the flow guiding direction. As Figure 4 shown, when the plane where the flow guiding vanes 7 are located coincides with the axis of the flow dividing cylinder 4, the air flow in the jet air flow chamber 6 blows straight out, driving the water mist generated by the ultrasonic spray array to form a concentrated jet flow to achieve long-distance dust reduction; as Figure 5 shown, when the flow guiding vanes 7 are inclined, the air flow is guided to rotate and diverge, so that the sprayed water mist has a divergent inertia, expanding the coverage range of the water mist. An adjustment mechanism can be designed to change the angle of the flow guiding vanes 7 to flexibly switch the spraying form of the water mist to meet the dust reduction requirements at different distances and ranges.

[0029] Embodiment 2: On the basis of Embodiment 1, asFigures 1 to 2 As shown in the figure, the adjusting mechanism designed by the present invention includes a toothed ring 9 rotatably mounted on the spray tube 1 through a slewing bearing. Twelve rotating shafts 10 are respectively fixedly connected to twelve flow guide vanes 7 and one end of each rotating shaft passes through the spray tube 1. A first gear 11 meshing with the toothed ring 9 is mounted at the end of the rotating shaft 10 passing through the spray tube 1. In this way, when the toothed ring 9 rotates, all the rotating shafts 10 are driven to rotate synchronously through the first gear 11, so that all the flow guide vanes 7 change the inclination angle with the rotating shaft 10 as the center, and the adjustment is convenient. A motor can be fixedly installed on the outer wall of the spray tube 1, and a gear meshing with the toothed ring 9 is fixed on the output shaft of the motor, so that the toothed ring 9 can be driven to rotate by the motor.

[0030] As Figure 5 and Figure 6 shown, a flow guide ball 12 is also fixedly installed in the flow dividing tube 4 through a bracket, and the center of the flow guide ball 12 is located on the axis of the flow dividing tube 4. A concave surface fitting the surface of the flow guide ball 12 is provided at one end of the flow guide vane 7 close to the flow guide ball 12, and the axis of the rotating shaft 10 passes through the center of the flow guide ball 12. In this way, when the adjusting mechanism drives the rotating shaft 10 to rotate, the flow guide vane 7 rotates with the rotating shaft 10 as the center, and the concave surface on the flow guide vane 7 always slides while fitting the surface of the flow guide ball 12. In this way, the inner wall of the flow dividing tube 4, the flow guide vane 7 and the flow guide ball 12 cooperate to fully guide the air flow and avoid the formation of turbulence between the flow guide vane 7 and the flow guide ball 12.

[0031] Since the high-speed air flow in the wall-attached air flow chamber 5 forms an air wall at the air outlet 3, blocking the collision between the water mist and the inner wall of the air outlet 3, and the air flow in the jet air flow chamber 6 forms a stable rotating or direct jet flow after being double-guided by the flow guide vane 7 and the flow guide ball 12. When the flow guide vane 7 is inclined, the air flow in the jet air flow chamber 6 is guided by the flow guide vane 7 to generate a spiral motion, so that the water mist is ejected in a conical shape and the coverage radius increases compared with the direct jet state. Through the cooperation of the flow guide ball 12 and the concave surface of the flow guide vane 7, the air flow resistance is reduced, the flow guide efficiency is improved, and the water mist particles are more evenly distributed in the air flow, which is especially suitable for medium-distance and large-range dust suppression scenarios, such as the periphery of construction sites or both sides of roads.

[0032] Embodiment Three: As Figure 2 and Figure 5As shown, based on the first and second embodiments, the present invention further optimizes the ultrasonic spray array structure. Specifically, twelve deflection shafts 13 are rotatably mounted on the spray tube 1. The deflection shafts 13 are coplanar with the rotating shaft 10 and are staggered with the rotating shaft 10. One end of the deflection shaft 13 located inside the flow dividing tube 4 is fixed with a second sub-water pipe 19. An ultrasonic spray unit 14 is installed on the second sub-water pipe 19. Each ultrasonic spray unit 14 includes three ultrasonic spray heads 15. A water supply ring 17 is sleeved outside the spray tube 1. Twelve first sub-water pipes 18 are connected to the water supply ring 17. These twelve first sub-water pipes 18 pass through the walls of the spray tube 1 and the flow dividing tube 4 and are communicated with the second sub-water pipe 19 on the deflection shaft 13 through a corrugated pipe 20. In this way, when the deflection shaft 13 rotates, the corrugated pipe 20 expands and contracts deforming to ensure that the first sub-water pipe 18 and the second sub-water pipe 19 remain in a connected state, ensuring stable water supply to the ultrasonic spray heads 15.

[0033] The present invention also fixes a second gear 16 meshing with the gear ring 9 at one end of the deflection shaft 13 extending outside the spray tube 1. In this way, when the gear ring 9 rotates to adjust the angle of the deflector 7, the deflection shaft 13 rotates at the same speed as the rotating shaft 10. This makes the ultrasonic spray heads 15 rotate by the same angle as the deflector 7, so that the orientation of the ultrasonic spray heads 15 is always consistent with the direction of the deflected air flow. The ultrasonic spray heads 15 rotate with the deflection shaft 13 to an angle matching the rotation direction of the air flow, enabling the water mist particles to be fully mixed with the rotating air flow and sprayed out from the air outlet 3 in a spiral radiation trajectory, improving the area of the dust suppression area covered.

[0034] When in use, as Figure 6 shown, the orientation of the spray tube 1 is adjusted by rotating the swivel base 22, and the tilt angle of the air outlet 3 is adjusted by adjusting the extended length of the push rod 24. The fan 8 is started and water is supplied to all the ultrasonic spray heads 15 through the water supply ring 17, causing the ultrasonic spray heads 15 to spray water mist. After the air flow driven by the fan 8 is divided by the flow dividing tube 4, a part passes through the jet air flow chamber 6, and another part passes through the wall-attached air flow chamber 5. After the deflector 7 guides the air flow, the air flow sprays out the water mist. The air flow velocity flowing out from the wall-attached air flow chamber 5 is greater than the air flow velocity spraying out between the deflectors 7. Therefore, the water mist is blocked by the air flow and will not splash and collide with the inner wall of the air outlet 3, but is sprayed out with the air flow. When it is necessary to adjust the spraying range, the gear ring 9 can be rotated to change the tilt angles of the deflector 7 and the ultrasonic spray heads 15.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. An ultrasonic atomization dust suppression device, characterized in that, Comprising: A spray tube, one end of the spray tube being an air inlet and the other end being an air outlet; A flow splitting tube, the flow splitting tube being arranged inside the air outlet and coaxial with the spray tube. The cavity between the outer wall of the flow splitting tube and the inner wall of the spray tube forms an attached wall air flow cavity, and an injection air flow cavity is formed inside the flow splitting tube; A flow guiding assembly, the flow guiding assembly being arranged inside the flow splitting tube. The flow guiding assembly includes a plurality of flow guiding vanes, and the plurality of flow guiding vanes are circumferentially and evenly distributed around the axis of the flow splitting tube; An ultrasonic spray array, arranged on the side of the flow guiding assembly away from the air outlet, for generating water mist; Wherein, a blower for supplying air to the injection air flow cavity and the attached wall air flow cavity is arranged at the air inlet of the spray tube, and the air flow speed in the attached wall air flow cavity is greater than the air flow speed in the injection air flow cavity; An adjusting mechanism for adjusting the angle of the flow guiding vanes is arranged on the spray tube.

2. The ultrasonic atomization dust suppression device according to claim 1, characterized in that, The adjusting mechanism includes: A toothed ring, the toothed ring being rotatably installed on the spray tube and coaxial with the spray tube; A plurality of rotating shafts, a plurality of flow guiding vanes are respectively fixed on the plurality of rotating shafts, and the rotating shafts are rotatably installed on the spray tube; A plurality of first gears, the plurality of first gears are respectively rotatably installed at the ends of the plurality of rotating shafts located outside the spray tube; Wherein, the toothed ring meshes with all the first gears. When the toothed ring rotates, all the first gears rotate and drive the flow guiding vanes to rotate around the rotating shafts, changing the flow guiding direction.

3. The ultrasonic atomization dust suppression device according to claim 2, wherein, A flow guiding ball is fixed inside the flow splitting tube, and the center of the flow guiding ball is located on the axis of the flow splitting tube; A concave surface that fits the surface of the flow guiding ball is arranged at one end of the flow guiding vane close to the flow guiding ball.

4. The ultrasonic atomization dust reduction device according to claim 3, wherein The rotating shaft is at the symmetry center of the flow guiding vane, and the axis of the rotating shaft passes through the center of the flow guiding ball.

5. The ultrasonic atomization dust suppression device according to claim 2, characterized in that, The ultrasonic spray array includes: A plurality of deflecting shafts, the deflecting shafts being rotatably installed on the spray tube, and the deflecting shafts and the rotating shafts are arranged in a staggered manner; A plurality of ultrasonic spray units, respectively arranged at one end of the plurality of deflecting shafts located inside the flow splitting tube; Each ultrasonic spray unit includes a plurality of ultrasonic spray heads.

6. The ultrasonic atomization dust suppression device according to claim 5, wherein A second gear meshing with the toothed ring is fixed at one end of the deflecting shaft extending out of the spray tube. When the toothed ring rotates, the deflecting shaft rotates at the same speed as the rotating shaft.

7. The ultrasonic atomization dust suppression device according to claim 5, characterized in that, A water supply ring is arranged outside the spray tube. A plurality of first sub-water pipes are connected to the water supply ring. A second sub-water pipe is fixed on the deflecting shaft. The ultrasonic spray heads are installed on the second sub-water pipe. The first sub-water pipe passes through the tube walls of the spray tube and the flow splitting tube, and the first sub-water pipe and the second sub-water pipe are communicated through a corrugated pipe.

8. The ultrasonic atomization dust suppression device according to claim 1, characterized in that, An annular concave portion is arranged at one end of the spray tube close to the air outlet. The air outlet is in the shape of an outwardly expanding horn, and the distance between the inner wall of the concave portion and the flow splitting tube is less than the distance between the inner wall of the spray tube and the flow splitting tube.

9. The ultrasonic atomization dust suppression device according to claim 8, wherein, The spray end of the ultrasonic spray array extends out of the flow splitting tube; One end of the flow splitting tube away from the blower extends out of the narrowest part of the concave portion and is inside the air outlet.

10. The ultrasonic atomization dust suppression device according to claim 1, characterized in that, A rotary seat is arranged below the spray tube. A hinge seat is fixed on the rotary seat. The spray tube is hinged on the hinge seat. A push rod is hinged on the rotary seat. One end of the push rod away from the rotary seat is hinged to the spray tube.

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