Dust falling device

Abstract

The invention provides a dust falling device, which comprises a water supply pipeline, a dust falling device, a dust removal device, a dust removal device, a dust removal device, a dust removal device and a dust removal device, and is characterized in that the water supply pipeline is provided with a first water inlet and a water outlet; the air supply pipeline is provided with a first air inlet and an air outlet, and a plurality of second branch pipes are arranged at the air outlet; and each spray head communicates with one first branch pipe and one second branch pipe, resonators are arranged in the spray heads, and the resonators can mix liquid in the first branch pipes and gas in the second branch pipes to form water mist and spray the water mist out. According to the technical scheme, the problem that in the prior art, no air source exists in a dust falling device, and the atomization effect of the dust falling device is poor, so that the dust falling effect is poor can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground dust removal, and in particular to a dust suppression device. Background Art

[0002] At present, in the process of loading, unloading, crushing, screening and transportation of many materials, due to the large drop and strong impact, a large amount of dust particles are generated and diffused into the air. Among them, particles with a diameter of less than 10 microns can be suspended in the air for a long time and become floating dust. It is the main source of air pollution, which not only causes dust pollution to the environment, but also can be easily inhaled by the human body and cause serious harm.

[0003] In the prior art, the dust suppression device used underground usually has only a water source but no wind source. The atomization effect of the dust suppression device is to convert high-pressure water into a water column and spray it out. In this way, only a small amount of water mist can exist in the tunnel, the mist range is relatively small, and the dust suppression effect on dust is poor. Summary of the invention

[0004] The present invention provides a dust suppression device to solve the problem that the dust suppression device in the prior art has no wind source and the atomization effect of the dust suppression device is poor, resulting in poor dust suppression effect.

[0005] The present invention provides a dust suppression device, which includes: a water supply pipeline, which has a first water inlet and a water outlet, and a plurality of first branches are arranged at the water outlet; an air supply pipeline, which has a first air inlet and an air outlet, and a plurality of second branches are arranged at the air outlet; a plurality of nozzles, each nozzle is connected to a first branch and a second branch respectively, and a resonator is provided in the nozzle, which can mix the liquid in the first branch and the gas in the second branch to form water mist and spray it out.

[0006] Furthermore, the dust reduction device includes a first flow regulating component and a second flow regulating component. The first flow regulating component is arranged on the water supply pipeline, and the first flow regulating component can regulate the flow in the water supply pipeline; the second flow regulating component is arranged on the air supply pipeline, and the second flow regulating component can regulate the flow in the air supply pipeline.

[0007] Furthermore, the dust reduction device also includes a controller, which is electrically connected to the first flow regulating component and the second flow regulating component respectively, so as to control the flow in the water supply pipeline and the flow in the air supply pipeline through the controller.

[0008] Furthermore, the first flow regulating component includes a first regulating valve, the first flow regulating component regulates the flow in the water supply pipeline through the first regulating valve, and the first regulating valve is electrically connected to the controller; the second flow regulating component includes a second regulating valve, the second flow regulating component regulates the flow in the gas supply pipeline through the second regulating valve, and the second regulating valve is electrically connected to the controller.

[0009] Furthermore, the first flow regulating component also includes a first pressure sensor, which is arranged between the first water inlet and the first regulating valve, and is used to detect the pressure value in the water supply pipeline. The first pressure sensor is electrically connected to the controller, and the controller can drive the first regulating valve to work according to the data detected by the first pressure sensor; the second flow regulating component also includes a second pressure sensor, which is arranged between the first air inlet and the second regulating valve, and is used to detect the pressure value in the air supply pipeline. The second pressure sensor is electrically connected to the controller, and the controller can drive the second regulating valve to work according to the data detected by the second pressure sensor.

[0010] Furthermore, the dust reduction device also includes: a first filter, which is arranged on the water supply pipeline and located between the first water inlet and the first pressure sensor, and the first filter is used to filter impurities in the liquid in the water supply pipeline; a second filter, which is arranged on the air supply pipeline and located between the first air inlet and the second pressure sensor, and the second filter is used to filter impurities in the gas in the air supply pipeline.

[0011] Furthermore, the dust reduction device also includes a first diverter, which is arranged on the water supply pipeline. The first diverter has a first inlet and a plurality of evenly distributed first diverter holes. The first inlet is connected to the water supply pipeline. The flow areas of the plurality of first diverter holes are the same. The plurality of first diverter holes are arranged one-to-one with the plurality of first branch pipes. The water supply pipeline is connected to the plurality of first branch pipes through the first diverter.

[0012] Furthermore, the dust reduction device also includes a second diverter, which is arranged on the air supply pipeline. The second diverter has a second inlet and a plurality of evenly distributed second diverter holes. The second inlet is connected to the air supply pipeline. The flow areas of the plurality of second diverter holes are the same. The plurality of second diverter holes are arranged one-to-one with the plurality of second branches. The air supply pipeline is connected to the plurality of second branches through the second diverter.

[0013] Furthermore, the first regulating valve and the second regulating valve are both configured as ball valves.

[0014] Furthermore, the nozzle has a second water inlet, a second air inlet and an outlet. The second air inlet and the outlet are respectively located at both ends of the nozzle along the length direction. The second water inlet is located on the side wall of the nozzle. The nozzle is also provided with independent inlet flow channels and water inlet flow channels. The inlet flow channels are respectively connected to the second air inlet and the outlet, and the water inlet flow channels are respectively connected to the second water inlet and the outlet. The resonator is arranged at the outlet.

[0015] By applying the technical solution of the present invention, an air supply pipeline and a resonator are added to the dust suppression device, so that the liquid in the water supply pipeline and the gas in the air supply pipeline can be effectively mixed to form fine water mist. Compared with the dust suppression device in the prior art that uses a high-pressure water column to suppress dust, the water mist generated by the dust suppression device in the present application can stay in the air for a longer time, has a better atomization effect, and can form a larger mist range, thereby improving the dust suppression device's adsorption effect on dust in the air. In addition, multiple first branch pipes are provided at the water outlet, and multiple second branch pipes are provided at the air outlet. One water supply pipeline and one air supply pipeline can match multiple nozzles, further increasing the dust suppression range and dust suppression effect of the dust suppression device, and improving the working comfort of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a dust suppression device provided in an embodiment of the present invention is shown;

[0018] Figure 2 A partial cross-sectional view of a spray head provided according to an embodiment of the present invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Water supply pipeline;

[0021] 101. a first water inlet; 102. a water outlet;

[0022] 11. First filter;

[0023] 12. The first diverter;

[0024] 20. Gas supply pipeline;

[0025] 201, first air inlet; 202, air outlet;

[0026] 21. Second filter;

[0027] 22. Second diverter;

[0028] 30, first branch; 40, second branch;

[0029] 50. Nozzle;

[0030] 501, second water inlet; 502, second air inlet;

[0031] 503. Export;

[0032] 504, air inlet passage; 505, water inlet passage;

[0033] 51. Resonator;

[0034] 61. A first regulating valve; 62. A first pressure sensor;

[0035] 71. A second regulating valve; 72. A second pressure sensor;

[0036] 80. Controller;

[0037] 90. Signal line. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a dust suppression device, which includes: a water supply pipeline 10, an air supply pipeline 20 and a plurality of nozzles 50. The water supply pipeline 10 has a first water inlet 101 and a water outlet 102, and a plurality of first branch pipes 30 are arranged at the water outlet 102. The air supply pipeline 20 has a first air inlet 201 and an air outlet 202, and a plurality of second branch pipes 40 are arranged at the air outlet 202. Each nozzle 50 is respectively connected to a first branch pipe 30 and a second branch pipe 40, and a resonator 51 is provided in the nozzle 50, which can mix the liquid in the first branch pipe 30 and the gas in the second branch pipe 40 to form water mist and spray it out. Figure 1 The direction of the middle arrow is the flow direction of the fluid in the water supply pipeline 10 and the air supply pipeline 20 .

[0040] By applying the technical solution of the present invention, an air supply pipeline 20 and a resonator 51 are added to the dust suppression device, so that the liquid in the water supply pipeline 10 and the gas in the air supply pipeline 20 can be effectively mixed to form fine water mist. Compared with the dust suppression device in the prior art that uses a high-pressure water column to suppress dust, the water mist generated by the dust suppression device in this application can stay in the air for a longer time, has a better atomization effect, and can form a larger mist range, thereby improving the dust suppression device's adsorption effect on dust in the air. In addition, multiple first branch pipes 30 are provided at the water outlet 102, and multiple second branch pipes 40 are provided at the air outlet 202. One water supply pipeline 10 and one air supply pipeline 20 can match multiple nozzles 50, further increasing the dust suppression range and dust suppression effect of the dust suppression device, and improving the working comfort of the operators.

[0041] Specifically, the dust reduction device includes a first flow regulating component and a second flow regulating component, wherein the first flow regulating component is arranged on the water supply pipeline 10, and the first flow regulating component can adjust the flow in the water supply pipeline 10. The second flow regulating component is arranged on the air supply pipeline 20, and the second flow regulating component can adjust the flow in the air supply pipeline 20. The arrangement of the first flow regulating component and the second flow regulating component enables the dust reduction device to adjust the supply amount of liquid and gas according to the actual working conditions, thereby providing atomization effects with different wind and water ratios, so as to maintain an efficient dust reduction effect in working environments with different dust concentrations, thereby improving the practicality of the dust reduction device and the flexibility of dust reduction. Among them, the dust reduction device also includes a controller 80, which is electrically connected to the first flow regulating component and the second flow regulating component respectively, so as to control the flow in the water supply pipeline 10 and the flow in the air supply pipeline 20 through the controller 80. Through the above-mentioned settings, the dust reduction control and operation of the dust reduction device are made more convenient and intelligent. The working parameters can be automatically adjusted through the controller according to the changes in the ambient dust concentration or the dust reduction requirements, thereby realizing automatic control and adjustment of the flow in the water supply pipeline 10 and the air supply pipeline 20.

[0042] like Figure 1 As shown, the first flow regulating assembly includes a first regulating valve 61, and the first flow regulating assembly adjusts the flow in the water supply pipeline 10 through the first regulating valve 61, and the first regulating valve 61 is electrically connected to the controller 80. The second flow regulating assembly includes a second regulating valve 71, and the second flow regulating assembly adjusts the flow in the gas supply pipeline 20 through the second regulating valve 71, and the second regulating valve 71 is electrically connected to the controller 80. Compared with the prior art in which the staff manually controls the valve based on experience, the present application controls the operation of the first regulating valve 61 through the controller 80, thereby improving the control rate of the first regulating valve 61 and the second regulating valve 71, and then the control accuracy and control speed of the flow in the pipeline, and improving the accuracy of the Feng Shui ratio in the nozzle 50.

[0043] In this embodiment, the specific structure of the first regulating valve 61 and the second regulating valve 71 is not limited, as long as the flow rate of the fluid in the water supply pipeline 10 and the gas supply pipeline 20 can be adjusted, such as a throttle valve, a butterfly valve or a solenoid valve.

[0044] Further, the first flow regulating assembly also includes a first pressure sensor 62, which is arranged between the first water inlet 101 and the first regulating valve 61, and is used to detect the pressure value in the water supply pipeline 10, and the first pressure sensor 62 is electrically connected to the controller 80, and the controller 80 can drive the first regulating valve 61 to work according to the data detected by the first pressure sensor 62; the second flow regulating assembly also includes a second pressure sensor 72, which is arranged between the first air inlet 201 and the second regulating valve 71, and is used to detect the pressure value in the air supply pipeline 20, and the second pressure sensor 72 is electrically connected to the controller 80, and the controller 80 can drive the second regulating valve 71 to work according to the data detected by the second pressure sensor 72. By real-time monitoring of the pressure values ​​in the water supply pipeline 10 and the air supply pipeline 20, the dust suppression device can maintain a stable working state. And even in an environment where the pressure fluctuations of the water source and the air source are large, a stable dust suppression effect can be maintained, thereby improving the adaptability of the dust suppression device.

[0045] Specifically, the controller 80 is electrically connected to the first pressure sensor 62 , the second pressure sensor 72 , the first regulating valve 61 , and the second regulating valve 71 through a plurality of signal lines 90 .

[0046] There are no restrictions on the pressure value in the pipeline and the Feng Shui ratio, which can be selected and adjusted according to the actual working conditions.

[0047] like Figure 1As shown, when the first pressure sensor 62 detects that the pressure value in the water supply pipeline 10 increases, a signal will be sent to the controller 80, and the controller 80 will control the first regulating valve 61 to reduce the flow through the water supply pipeline 10. When the first pressure sensor 62 detects that the pressure value in the water supply pipeline 10 decreases, a signal will be sent to the controller 80, and the controller 80 will control the first regulating valve 61 to increase the flow through the water supply pipeline 10 to ensure the stability of the pressure value in the water supply pipeline 10; when the second pressure sensor 72 detects that the pressure value in the gas supply pipeline 20 increases, a signal will be sent to the controller 80, and the controller 80 will control the second regulating valve 71 to reduce the flow through the gas supply pipeline 20. When the second pressure sensor 72 detects that the pressure value in the gas supply pipeline 20 decreases, a signal will be sent to the controller 80, and the controller 80 will control the second pressure sensor 72 to increase the flow through the gas supply pipeline 20 to ensure the stability of the pressure value in the water supply pipeline 10. There is no limit on the pressure value and Feng Shui ratio in the pipeline, and they can be selected and adjusted according to the actual working conditions.

[0048] In this solution, the Feng Shui coordination of the desired atomization effect can also be input into the controller 80. The controller 80 can adjust and control the pressure sensors and regulating valves on the water supply pipeline 10 and the air supply pipeline 20 in real time during dust suppression operation, so that the atomization effect of the nozzle 50 is always the preset effect input into the controller 80.

[0049] The dust reduction device further includes: a first filter 11 and a second filter 21. The first filter 11 is arranged on the water supply pipeline 10 and is located between the first water inlet 101 and the first pressure sensor 62. The first filter 11 is used to filter impurities in the liquid in the water supply pipeline 10. The second filter 21 is arranged on the air supply pipeline 20 and is located between the first air inlet 201 and the second pressure sensor 72. The second filter 21 is used to filter impurities in the gas in the air supply pipeline 20. Through the above arrangement, the purity of the liquid in the water supply pipeline 10 and the gas in the air supply pipeline 20 is ensured, and the nozzle 50 can be effectively prevented from being blocked by impurities, thereby extending the service life of the nozzle 50. At the same time, this can also prevent the water mist sprayed by the nozzle 50 from spraying impurities into the working environment again, thereby preventing the dust reduction device from causing secondary pollution to the working environment.

[0050] Furthermore, the dust suppression device further includes a first diverter 12, which is arranged on the water supply pipeline 10, and has a first inlet and a plurality of evenly distributed first diverter holes, the first inlet is connected to the water supply pipeline 10, the flow areas of the plurality of first diverter holes are the same, the plurality of first diverter holes are arranged in one-to-one correspondence with the plurality of first branch pipes 30, and the water supply pipeline 10 is connected to the plurality of first branch pipes 30 through the first diverter 12. The arrangement of the first diverter 12 can ensure the consistency of the water supply amount of the water supply pipeline 10 to each nozzle 50, further improve the accuracy of the water supply amount, and also improve the uniformity of the water mist spraying of the nozzle 50.

[0051] like Figure 1 As shown, the dust suppression device further includes a second flow divider 22, which is arranged on the air supply pipeline 20. The second flow divider 22 has a second inlet and a plurality of evenly distributed second flow divider holes. The second inlet is connected to the air supply pipeline 20. The flow areas of the plurality of second flow divider holes are the same. The plurality of second flow divider holes are arranged one-to-one with the plurality of second branch pipes 40. The air supply pipeline 20 is connected to the plurality of second branch pipes 40 through the second flow divider 22. The arrangement of the second flow divider 22 ensures the uniformity of the air supply amount of the air supply pipeline 20 to each nozzle 50. The second flow divider 22 cooperates with the first flow divider 12 to make the entire dust suppression device more stable and reliable.

[0052] Preferably, the first regulating valve 61 and the second regulating valve 71 are both configured as ball valves. The ball valve can effectively control the flow of water and gas. Compared with other valve bodies, the ball valve has a simpler structure, is easier to operate, and is cheaper, which can save the production and maintenance costs of the dust suppression device.

[0053] like Figure 1 and Figure 2 As shown, the nozzle 50 has a second water inlet 501, a second air inlet 502 and an outlet 503, the second air inlet 502 and the outlet 503 are respectively located at the two ends of the nozzle 50 along the length direction, the second water inlet 501 is located on the side wall of the nozzle 50, and the nozzle 50 is also provided with an independent air inlet channel 504 and a water inlet channel 505, the air inlet channel 504 is respectively connected to the second air inlet 502 and the outlet 503, the water inlet channel 505 is respectively connected to the second water inlet 501 and the outlet 503, and the resonator 51 is arranged at the outlet 503. The independent air inlet channel 504 and the water inlet channel 505 can make the liquid and the gas maintain their respective flow characteristics before entering the resonator 51, reducing the interference between the two. At the same time, such a setting can more flexibly adjust the flow of the liquid and gas entering the nozzle 50 according to the needs, realize more precise control, so as to achieve a better atomization effect, thereby improving the dust reduction effect of the dust reduction device.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0055] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0056] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0057] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0058] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust suppression device, characterized in that: The dust suppression device comprises: A water supply pipeline (10) having a first water inlet (101) and a water outlet (102), wherein a plurality of first branch pipes (30) are arranged at the water outlet (102); An air supply pipeline (20) having a first air inlet (201) and an air outlet (202), wherein a plurality of second branch pipes (40) are arranged at the air outlet (202); A plurality of nozzles (50), each of the nozzles (50) being connected to one of the first branch pipes (30) and one of the second branch pipes (40), and a resonator (51) being provided inside the nozzles (50), and the resonator (51) being capable of mixing the liquid in the first branch pipe (30) and the gas in the second branch pipe (40) to form water mist and then spraying it out.

2. The dust suppression device according to claim 1, characterized in that: The dust suppression device comprises a first flow regulating component and a second flow regulating component, wherein the first flow regulating component is arranged on the water supply pipeline (10), and the first flow regulating component is capable of regulating the flow in the water supply pipeline (10); and the second flow regulating component is arranged on the air supply pipeline (20), and the second flow regulating component is capable of regulating the flow in the air supply pipeline (20).

3. The dust suppression device according to claim 2, characterized in that: The dust suppression device further comprises a controller (80), wherein the controller (80) is electrically connected to the first flow regulating component and the second flow regulating component respectively, so as to control the flow in the water supply pipeline (10) and the flow in the air supply pipeline (20) through the controller (80).

4. The dust suppression device according to claim 3, characterized in that: The first flow regulating component comprises a first regulating valve (61), and the first flow regulating component regulates the flow in the water supply pipeline (10) through the first regulating valve (61), and the first regulating valve (61) is electrically connected to the controller (80); the second flow regulating component comprises a second regulating valve (71), and the second flow regulating component regulates the flow in the gas supply pipeline (20) through the second regulating valve (71), and the second regulating valve (71) is electrically connected to the controller (80).

5. The dust suppression device according to claim 4, characterized in that: The first flow regulating component further comprises a first pressure sensor (62), the first pressure sensor (62) being arranged between the first water inlet (101) and the first regulating valve (61), the first pressure sensor (62) being used to detect the pressure value in the water supply pipeline (10), the first pressure sensor (62) being electrically connected to the controller (80), and the controller (80) being capable of driving the first regulating valve (61) to operate according to data detected by the first pressure sensor (62); The second flow regulating component also includes a second pressure sensor (72), which is arranged between the first air inlet (201) and the second regulating valve (71), and the second pressure sensor (72) is used to detect the pressure value in the air supply pipeline (20). The second pressure sensor (72) is electrically connected to the controller (80), and the controller (80) can drive the second regulating valve (71) to work according to the data detected by the second pressure sensor (72).

6. The dust suppression device according to claim 5, characterized in that: The dust suppression device also includes: a first filter (11), the first filter (11) being arranged on the water supply pipeline (10) and located between the first water inlet (101) and the first pressure sensor (62), the first filter (11) being used for filtering impurities in the liquid in the water supply pipeline (10); A second filter (21), the second filter (21) is arranged on the gas supply pipeline (20) and is located between the first gas inlet (201) and the second pressure sensor (72), the second filter (21) being used for filtering impurities in the gas in the gas supply pipeline (20).

7. The dust suppression device according to claim 4, characterized in that: The dust suppression device also includes a first diverter (12), which is arranged on the water supply pipeline (10), and has a first inlet and a plurality of evenly distributed first diverter holes, the first inlet is connected to the water supply pipeline (10), the flow areas of the plurality of first diverter holes are the same, the plurality of first diverter holes are arranged in a one-to-one correspondence with the plurality of first branch pipes (30), and the water supply pipeline (10) is connected to the plurality of first branch pipes (30) through the first diverter (12).

8. The dust suppression device according to claim 4, characterized in that: The dust reduction device also includes a second diverter (22), which is arranged on the air supply pipeline (20), and the second diverter (22) has a second inlet and a plurality of evenly distributed second diverter holes, the second inlet is connected to the air supply pipeline (20), the flow areas of the plurality of second diverter holes are the same, the plurality of second diverter holes are arranged in a one-to-one correspondence with the plurality of second branch pipes (40), and the air supply pipeline (20) is connected to the plurality of second branch pipes (40) through the second diverter (22).

9. The dust suppression device according to claim 4, characterized in that: The first regulating valve (61) and the second regulating valve (71) are both configured as ball valves.

10. The dust suppression device according to claim 1, characterized in that: The nozzle (50) comprises a second water inlet (501), a second air inlet (502) and an outlet (503); the second air inlet (502) and the outlet (503) are respectively located at two ends of the nozzle (50) along the length direction; the second water inlet (501) is located on the side wall of the nozzle (50); the nozzle (50) is also provided with a mutually independent inlet flow channel (504) and a water inlet flow channel (505); the inlet flow channel (504) is respectively connected to the second air inlet (502) and the outlet (503); the water inlet flow channel (505) is respectively connected to the second water inlet (501) and the outlet (503); and the resonator (51) is arranged at the outlet (503).

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