Automatic site flushing and dust falling system

Abstract

The invention relates to an automatic site flushing and dust falling system. The system comprises a water supply system; the spraying device is used for spraying and settling dust; the connecting structure is used for communicating the spraying device with the water supply system, and the connecting structure is detachably connected between the water supply system and the spraying device; the control system is used for controlling the spraying device to work; the spraying device comprises a base, a spraying part and an adjusting mechanism, the spraying part is movably connected to the base, the adjusting mechanism is used for driving the spraying part to move on the base so as to adjust the spraying direction of the spraying part, and the adjusting mechanism is in communication connection with the control system. The spraying device is preset in the space where dust fall is needed, so that dust fall can be achieved only by turning on the switch, meanwhile, due to the fact that the spraying device is fixed in the space where dust fall is needed, dust fall can be continuously conducted in the range where dust fall is needed, the dust fall efficiency is higher, and the dust fall effect is better. And when dust falling is needed, rapid dust falling operation can be carried out on a production site.

Description

Technical Field

[0001] The invention relates to the technical field of environmental dust reduction, and in particular to an automatic site flushing and dust reduction system. Background Art

[0002] In places with dense dust sources such as construction sites and industrial areas, particles are easily blown away by wind and form dust. Spraying dust suppression can moisten the surface of particles, increase the adhesion between particles, inhibit particle dust, and reduce pollution to the surrounding environment. Spraying dust suppression is a simple and effective dust suppression method that can reduce the concentration of particles, improve air quality, protect health, maintain the working environment, and prevent risks such as fire.

[0003] In the process of concrete production and processing, there is usually a lot of dust in the site, which makes the air quality of the production site poor and affects the physical and mental health of workers. Therefore, sprinkler trucks are used to spray from time to time to reduce dust in some areas of the production site to improve the production environment. However, when using sprinkler trucks to reduce dust, the dust reduction efficiency is low, which is not conducive to rapid dust reduction. Summary of the invention

[0004] In order to solve the problem of low dust reduction efficiency, the present application provides an automatic site flushing and dust reduction system.

[0005] The above-mentioned invention object of the present invention is achieved through the following technical scheme: a site automatic flushing and dust reduction system, comprising: Water supply system; Spraying device, used for spraying and dust reduction; A connection structure, used to connect the spray device to the water supply system, wherein the connection structure is detachably connected between the water supply system and the spray device; and Control system, used to control the operation of the spraying device; The spray device includes a base, a spray part and an adjusting mechanism, wherein the spray part is movably connected to the base, the adjusting mechanism is used to drive the spray part to move on the base to adjust the spraying direction of the spray part, and the adjusting mechanism is communicatively connected to a control system.

[0006] By adopting the above technical solution, during use, the control system controls the spray device to perform spraying work at a fixed time, and the control system controls the adjustment mechanism at the same time, so that the spray part can spray in different directions, and the water supply system can provide relatively clean water to the spray part, thereby significantly reducing the dust in the air; the spray device is preset in the space where dust reduction is required, so it is only necessary to turn on the switch when dust reduction is required, and at the same time, because the spray device is fixed in the space where dust reduction is required, it is possible to continuously reduce dust within the range where dust reduction is required, the dust reduction efficiency is higher, the dust reduction effect is better, and the production site can be quickly dust reduced when dust reduction is required.

[0007] Preferably, the spraying part comprises: A first adjusting part, rotatably connected to the base; a second adjusting portion, rotatably connected to the first adjusting portion, wherein a rotation axis of the first adjusting portion and a rotation axis of the second adjusting portion are perpendicular to each other; and A nozzle connected to the second adjusting part, wherein the spraying direction of the nozzle is perpendicular to the rotation direction of the second adjusting part; The adjusting mechanism is used to adjust the rotation of the first adjusting part and / or the second adjusting part so that the nozzle faces a desired direction.

[0008] By adopting the above technical solution, the nozzle can be directed to any direction through the first adjustment part and the second adjustment part, which is convenient for concentrated and rapid dust reduction in areas with more dust. At the same time, the spraying direction of the nozzle can also be continuously changed, so as to reduce dust in a larger range of space around the spray part and increase the range of dust reduction.

[0009] Preferably, a flow channel for water to pass through is provided in the first regulating part and the second regulating part, and the flow channel inside the first regulating part and the flow channel inside the second regulating part are connected with each other in a smooth arc transition.

[0010] By adopting the above technical solution, during use, water in the water supply system enters the nozzle through the flow channel, and by connecting the first regulating part and the second regulating part through a smooth arc transition, when the water enters the second regulating part from the first regulating part, there will not be a large loss in flow rate, etc., thereby keeping the nozzle injection pressure and injection speed within a good range.

[0011] Preferably, the water supply system comprises: Sedimentation tanks for storing recycled water; A filter tank, connected to the sedimentation tank, for filtering and storing water in the sedimentation tank, wherein the connection point between the filter tank and the sedimentation tank is located at the highest water level of the sedimentation tank; A disinfection device connected to the filter tank is used to sterilize the water in the filter tank, and The clean water pool is used to store water after sterilization and disinfection. A water pump is arranged in the clean water pool, and the spray device is connected to the water pump.

[0012] By adopting the above technical scheme, during use, due to the need for frequent spraying for dust reduction, more water will be used. In order to save water, recycled water is used for spraying. The recycled water mainly includes rainwater, ground flowing water after spraying, etc. Therefore, the recycled water will contain more sand and gravel particles, etc. Most of the sand and gravel particles in the water can be removed by the sedimentation tank, and then the remaining impurities in the precipitated water can be filtered through the filter tank. The disinfection device can reduce or remove viruses, microorganisms, etc. in the filtered water, thereby ensuring that the water used for spraying is relatively clean, improving the dust reduction effect, and improving the air quality.

[0013] Preferably, the disinfection device comprises an ultraviolet sterilization part, and the ultraviolet sterilization part is provided with a water inlet and a water outlet, the water inlet is connected to the filter tank, and the water outlet is connected to the water purification tank.

[0014] By adopting the above technical solutions, the UV sterilizer can remove or reduce bacteria, viruses and other microorganisms in water. As a physical method, the UV sterilizer uses ultraviolet radiation to kill bacteria and viruses without adding any chemical disinfectants.

[0015] Preferably, it includes a detection device, which is used to detect the dust content in the air and output a dust content signal; the control system is used to receive the dust content signal and determine whether the dust content signal exceeds a preset quantity threshold. If so, the spraying device starts spraying.

[0016] By adopting the above technical solution, the detection unit can sense the dust content in the production site in real time. When the dust content exceeds the standard, the control system controls the spray device to start working, thereby automatically performing dust reduction operations on the production site. When the dust content is reduced to a reasonable range, the spray device stops working. During the entire dust reduction process, workers do not need manual control or real-time observation, and the dust reduction efficiency is higher.

[0017] Preferably, the detection device is provided in plurality, and the plurality of the detection devices are distributed in different areas of the space where dust reduction is required, and the detection device is used to detect the dust content in the area; When the control system receives a dust content signal exceeding a preset quantity threshold, the control regulating mechanism drives the nozzle toward the area where the detection device whose dust content signal exceeds the preset quantity threshold is located; If the dust content signals output by the plurality of detection devices exceed a preset number threshold, the regulating mechanism drives the nozzle to swing back and forth in the area where the plurality of detection devices whose dust content signals exceed the preset number threshold are located.

[0018] By adopting the above technical solution, the dust content in each area of ​​the production site will be different due to different production functions. Therefore, in order to achieve the highest dust reduction effect with the least water, the dust content in different areas needs to be distinguished. By setting up multiple detection devices, the control system can control the nozzle to reduce dust only in the area where the dust exceeds the standard, avoiding the situation where the entire factory area is dusted at the same time when the dust content in a certain area exceeds the standard. This method has a better dust reduction effect and can save water resources at the same time.

[0019] Preferably, the detection device includes a particle concentration sensor and / or a laser scattering sensor.

[0020] By adopting the above technical solutions, the particle concentration sensor can be used to detect the dust content in the air. It evaluates its concentration by measuring the number of suspended particles or dust in the air; the laser scattering dust sensor uses a laser beam to illuminate the particles in the air and measures the intensity of laser scattering to evaluate the particle content and dust content. By combining or using the two sensors alone, the dust content in the production site can be quickly and accurately monitored in real time so that spraying and dust reduction operations can be carried out in a timely manner.

[0021] Preferably, the water supply system comprises a conduit, the conduit is connected with a pre-buried port, and the connecting structure is connected between the pre-buried port and the spray device.

[0022] By adopting the above technical solution, the water required for spraying can be transported to multiple areas in the production site through the conduit, which facilitates the simultaneous / separate spraying of dust reduction in multiple areas and improves the dust reduction efficiency.

[0023] Preferably, the connection structure comprises: A support pipe, the support pipe is connected to the spray part and is used to support the spray device; The support part is used to support and fix the support pipe so that the spray part is at a set height; A flexible connecting tube is connected between the supporting tube and the embedded port. The flexible connecting tube is a corrugated tube. A housing cavity for accommodating the flexible connecting tube is provided in the supporting portion. The flexible connecting tube is folded in the housing cavity. The inner wall of the housing cavity is in contact with the outer wall of the flexible connecting tube. The housing cavity is provided with an opening for the flexible connecting tube to enter and exit toward the embedded port.

[0024] By adopting the above technical solution, the spray part can be supported at a suitable height by the support part, so that dust within a certain height can be processed. By setting support parts of different heights in different areas, dust at different heights can be processed in a targeted manner, thereby improving the dust processing efficiency.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The spray device is preset in the space where dust is to be reduced, so you only need to turn on the switch when reducing dust. At the same time, since the spray device is fixed in the space where dust is to be reduced, it can continuously reduce dust within the range where dust reduction is required, with higher dust reduction efficiency and better dust reduction effect. When dust reduction is required, the production site can be quickly dust reduced.

[0026] 2. By setting up multiple detection devices, the control system can control the nozzle to reduce dust only in areas where the dust content exceeds the standard, avoiding the situation where the entire factory area is reduced dust at the same time when the dust content in a certain area exceeds the standard. This method has a higher dust reduction effect and can save water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the spray device.

[0028] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application.

[0029] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0030] Figure 4 This is a control principle diagram of an embodiment of the present application.

[0031] In the figure, 1. water supply system; 11. sedimentation tank; 12. filter tank; 121. filter device; 13. disinfection device; 14. water purification tank; 2. spray device; 21. base; 22. spray part; 221. first adjustment part; 222. second adjustment part; 223. nozzle; 23. adjustment mechanism; 231. first motor; 232. second motor; 3. connection structure; 31. support pipe; 32. support part; 33. flexible connection pipe; 331. hoop; 4. control system; 5. water pump; 6. detection device; 7. conduit; 8. embedded port; 9. accommodating cavity; 10. opening. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0033] In order to enable technicians in this field to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0034] In the description of the embodiments of the present application, words such as "for example" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "for example" or "for example" is intended to present related concepts in a specific way.

[0035] In the description of the embodiments of the present application, the term "plurality" means two or more. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0036] Reference Figure 1 , 2 As shown, an automatic site flushing and dust reduction system includes a control system 4, a water supply system 1, a spray device 2 and a connecting structure 3 connected between the water supply system 1 and the spray device 2. In use, the control system 4 controls the operation of the spray device 2 through manual control or a set program. When the spray device 2 is working, it can perform spraying and dust reduction operations in the production site. The water supply system 1 is used to provide water required for spraying. In this embodiment, the connecting structure 3 is used to transport the water in the water supply system 1 to the spray device 2 on the one hand, and to support the spray device 2 to a required height on the other hand, so as to spray and purify the air within the required height range.

[0037] The spray device 2 includes a base 21, a spray part 22 and an adjustment mechanism 23. The spray part 22 is rotatably connected to the base 21, and the adjustment mechanism 23 is used to drive the spray part 22 to rotate on the base 21. Since the spray part 22 is required to reduce dust in all directions in the space around the base 21 during dust reduction, the spray part 22 is configured as a first adjustment part 221 rotatably connected to the base 21, and a second adjustment part 222 is rotatably connected to the first adjustment part 221, and a nozzle 223 is connected to the end of the second adjustment part 222 away from the first adjustment part 221. The adjustment mechanism 23 is used to adjust the first adjustment part 221 to rotate on the base 21, and the adjustment mechanism 23 can be used to adjust the second adjustment part 222 to rotate relative to the first adjustment part 221. In this embodiment, the rotation axis of the first adjustment part 221 and the rotation axis of the second adjustment part 222 are perpendicular to each other, and the spraying direction of the nozzle 223 and the rotation direction of the second adjustment part 222 are perpendicular to each other.

[0038] like Figure 1 , 2As shown, the first regulating part 221 and the second regulating part 222 are hollow pipes, and flow channels are arranged in the first regulating part 221 and the second regulating part 222. During use, the connecting structure 3 is connected to the flow channel. In order to make the injection pressure and injection flow rate of the nozzle 223 in a suitable state, the first regulating part 221 and the second regulating part 222 are smoothly connected through an arc transition. In this way, when the water in the first regulating part 221 enters the second regulating part 222 through the flow channel, the loss of kinetic energy of the water flow can be reduced, thereby improving the injection effect of the nozzle 223.

[0039] In this embodiment, when the second adjusting part 222 only rotates relative to the first adjusting part 221, the spraying direction of the nozzle 223 will always be located in the same vertical plane; when the second adjusting part 222 is stationary relative to the first adjusting part 221, but the first adjusting part 221 rotates relative to the base 21, the spraying direction of the nozzle 223 will make a circular motion with the rotation axis of the first adjusting part 221 as the rotation center. Therefore, through the adjustment of the first adjusting part 221 and the second adjusting part 222, the nozzle 223 can be directed to any direction in the space, thereby facilitating the spraying and dust reduction operations in various directions in the production site.

[0040] In this embodiment, the adjusting mechanism 23 includes a first motor 231 and a second motor 232. The first motor 231 is used to drive the first adjusting part 221 to rotate relative to the base 21, and the second motor 232 is used to drive the second adjusting part 222 to rotate relative to the first adjusting part 221. During use, the first adjusting part 221 and the second adjusting part 222 can be rotated simultaneously or separately according to actual conditions, so that the nozzle 223 can spray toward the required area. At the same time, the nozzle 223 can also change the spraying direction of the nozzle 223 while spraying, so as to achieve continuous dust reduction over a large range.

[0041] like Figure 2 , 3 The connection structure 3 includes a support tube 31, a support portion 32 and a flexible connection tube 33. The support tube 31 is connected to the support portion 32. The support portion 32 is placed at a desired position to support the support tube 31 during use. The upper end of the support tube 31 is connected to the base 21, and the lower end of the support tube 31 is connected to the flexible connection tube 33. The end of the flexible connection tube 33 away from the support tube 31 is used to communicate with the water supply system 1. In this embodiment, a receiving chamber 9 is provided on the bottom side of the support portion 32. The lower end of the support tube 31 is located in the receiving chamber 9, and a flange is connected to the end of the support tube 31 located in the receiving chamber 9. Flanges are also provided at both ends of the flexible connection tube 33. The flanges on the support tube 31 and the flexible connection tube 33 are connected together by bolts. The other flange of the flexible connection tube 33 is used to communicate with the water supply system 1.

[0042] Among them, the flexible connecting tube 33 in this embodiment is a corrugated hose. When in use, the connecting tube is folded and stored in the accommodating chamber 9. Since the water pressure in the flexible connecting tube 33 is relatively high, a plurality of hoops 331 are arranged around the flexible connecting tube 33 in this embodiment. The hoops 331 limit the circumferential deformation range of the flexible connecting tube 33 to avoid the situation where the flexible connecting tube 33 is subjected to relatively high water pressure and has relatively large circumferential deformation. In this embodiment, the accommodating chamber 9 is a cylindrical cavity. An opening 10 is arranged at the bottom end of the accommodating chamber 9. The accommodating chamber 9 is connected to the outside through the opening 10. The axis of the flexible connecting tube 33 is arranged along the depth direction of the accommodating chamber 9, and the outer diameter of the flexible connecting tube 33 is the same as the inner diameter of the accommodating chamber 9. Therefore, the accommodating chamber 9 can also play a role in limiting the circumferential direction of the flexible connecting tube 33, thereby avoiding the situation where the flexible connecting tube 33 is burst when the water pressure is relatively high. In order to further enhance the strength of the flexible connecting tube 33, a plurality of reinforcing flexible connecting wires are arranged along the axial direction of the flexible connecting tube 33. The reinforcing flexible connecting wires may be nylon threads or other threads with higher strength. The reinforcing flexible connecting wires are evenly distributed along the circumference of the flexible connecting tube 33. During use, the reinforcing flexible connecting wires are compounded in the flexible connecting tube 33, and both ends of the reinforcing flexible connecting wires are connected to the flange of the flexible connecting tube 33. Specifically, a connecting hole may be arranged on the flange, and the end of the reinforcing flexible connecting wire may be fixed in the connecting hole.

[0043] Reference Figure 4 In order to further improve the dust reduction efficiency, a detection device 6 is electrically connected to the control system 4. The detection device 6 is used to detect the dust content in the air. In this embodiment, the detection device 6 includes a particle concentration sensor and / or a laser scattering sensor. In specific use, the relevant sensors can be used alone or in combination according to actual conditions, so that the dust in the air can be quickly detected and responded to. When the detection device 6 is working, it can output a dust content signal, and the control system 4 can receive the dust content signal and determine whether the dust content signal exceeds a preset quantity threshold. If so, it means that the dust exceeds the standard, and the control system 4 will control the spray device 2 to start working. During spraying, the control system 4 can control the adjustment mechanism 23 to work, so as to adjust the spraying direction of the nozzle 223. At the same time, the control system 4 can control the water to enter the nozzle 223, so that the nozzle 223 sprays. In this embodiment, there is no specific limitation on how the control system 4 controls the spraying part 22 to spray. In specific use, the spraying method can be to adjust the position of the nozzle 223 before spraying, or to adjust the position of the nozzle 223 synchronously during spraying, or the above two methods can be used in combination to achieve a better dust reduction effect.

[0044] In the process of specific production activities, the amount of dust in different links and different areas of the production site may be different. Therefore, different spraying times and spraying heights need to be set according to actual needs. For this reason, multiple detection devices 6 are provided in this embodiment. The multiple detection devices 6 are distributed in different areas where dust reduction is required. The multiple detection devices 6 are used to detect the dust content in the area. At the same time, specific spray devices 2 can also be respectively set in each area and / or between adjacent areas as needed, so that the spray device 2 can spray a larger range, and different numbers of spray devices 2 can also be started according to the amount of dust, so as to achieve the effect of rapid dust reduction.

[0045] During specific use, when the control system 4 receives a dust content signal exceeding a preset quantity threshold, the control regulating mechanism 23 is controlled to drive the nozzle 223 toward the area where the detection device 6 whose dust content signal exceeds the preset quantity threshold is located; if the dust content signals output by multiple detection devices 6 exceed the preset quantity threshold, the regulating mechanism 23 drives the nozzle 223 to swing back and forth in the area where multiple detection devices 6 whose dust content signals exceed the preset quantity threshold are located, thereby being able to perform continuous spraying and dust reduction in multiple areas where dust exceeds the standard.

[0046] Reference Figure 2 , 3 The water supply system 1 includes a sedimentation tank 11, a filter tank 12, a water purification tank 14 and a disinfection device 13. The sedimentation tank 11 can precipitate dust and other particulate matter in the water, and the filter tank 12 can filter the remaining impurities in the precipitated water. The disinfection device 13 can reduce or remove viruses, microorganisms, etc. in the filtered water, thereby ensuring that the water used for spraying is relatively clean. In this embodiment, the disinfection device 13 includes an ultraviolet sterilization part, which is provided with a water inlet and a water outlet. The water inlet is connected to the filter tank 12, and the water outlet is connected to the water purification tank 14. The disinfection device 13 is installed between the filter tank 12 and the water purification tank 14 to disinfect and filter the water entering the water purification tank 14, and the water used for spraying is taken from the water purification tank 14. Therefore, the water mist generated by the spraying does not contain harmful substances, thereby avoiding the occurrence of secondary pollution after the water spraying.

[0047] In this embodiment, a filter device 121 is provided between the filter tank 12 and the sedimentation tank 11. When the water in the sedimentation tank 11 flows into the filter tank 12, the filter device 121 will filter the water, and the water filtered into the filter tank 12 will be stored for standby use. When the water in the clean water tank 14 is consumed, the water in the filter tank 12 will be quickly disinfected and replenished through the disinfection device 13. The filter device 121 is mainly used to remove particulate matter in the water.

[0048] A pump 5 is provided in the clean water pool 14, and a conduit 7 is connected to the pump 5. The conduit 7 is pre-buried in the production site and is used to transport the water in the clean water pool 14 to the place where dust reduction is required. The conduit 7 is connected with a pre-buried port 8 as needed. In this embodiment, there are multiple pre-buried ports 8, and the number of pre-buried ports 8 is not less than the number of spray devices 2, so as to facilitate the installation of spray devices 2, or to reserve extra positions for installing new spray devices 2 when needed later. A flange is provided on the pre-buried port 8. In use, the flange on the pre-buried port 8 is protruding from the ground and is used to connect with the flange on the flexible connection pipe 33, so that the water in the conduit 7 is input into the support pipe 31. In order to facilitate the connection between the pre-buried port 8 and the flexible connection pipe 33, a sink is provided at the opening 10 of the accommodating cavity 9, so that the pre-buried port 8 can extend into the sink, so that the support part 32 can be attached to the ground, and the position of the support part 32 can also be positioned. In this embodiment, the support part 32 is a prefabricated cement concrete component.

[0049] When in use, recycled water such as rainwater is filtered and recycled through the water supply system 1, and the treated water is stored in the clean water pool 14. When the detection device 6 detects that the dust exceeds the standard, the control system 4 controls the water pump 5 and the nozzle 223 to start working, and the dust will be sprayed at this time. At the same time, the control system 4 controls the adjustment mechanism 23 to adjust the spraying direction of the nozzle 223, so as to spray different areas or different directions of the same area to quickly reduce dust. The present application is applied in an open venue where there may be vehicles, pedestrians, etc., so the venue environment is relatively complex. During use, a vehicle may collide with the spray device 2. Due to the special design of the present application, when the support tube 31 is hit, the support portion 32 can be tilted or overturned, and no significant damage will be caused to the support tube 31 and the spray device 2. When the support portion 32 is tilted, the distance between the support tube 31 and the embedded port 8 increases, which will cause the flexible connecting tube 33 to be stretched, thereby achieving a force unloading effect, making the embedded port 8 and the support tube 31 less likely to be damaged. The support portion 32 can be re-adjusted and reused later. At the same time, since the support portion 32 has a certain weight Therefore, when the support tube 31 is hit, a "tumbler" structure will be formed between the support portion 32, the support tube 31 and the spray device 2, so that when it is hit normally, the support tube 31 will not fall down, but will only tilt. When the impact object is removed, the support portion 32 will automatically return to its original position; and when the impact is severe and causes the support tube 31 to fall down, since the soft connection tube 33 is made of flexible material, it can still work normally even if it is crushed, and will not break and cause water to flow everywhere, thereby reducing the handling cost when an accident occurs. Compared with directly using a rigid connection, the present application can greatly protect vehicles and pedestrians, and can quickly restore normal working conditions after a collision accident.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A site automatic flushing and dust reduction system, characterized in that: include: Water supply system (1); A spraying device (2), used for spraying to reduce dust; A connection structure (3) for connecting the spray device (2) to the water supply system (1), wherein the connection structure (3) is detachably connected between the water supply system (1) and the spray device (2); and A control system (4), used for controlling the operation of the spray device (2); The spray device (2) comprises a base (21), a spray part (22) and an adjustment mechanism (23); the spray part (22) is movably connected to the base (21); the adjustment mechanism (23) is used to drive the spray part (22) to move on the base (21) to adjust the spray direction of the spray part (22); and the adjustment mechanism (23) is communicatively connected to a control system (4).

2. The automatic site flushing and dust reduction system according to claim 1 is characterized in that: The spraying part (22) comprises: A first adjusting portion (221) is rotatably connected to the base (21); A second adjusting portion (222) is rotatably connected to the first adjusting portion (221), wherein a rotation axis of the first adjusting portion (221) and a rotation axis of the second adjusting portion (222) are perpendicular to each other; and A spray head (223) is connected to the second adjusting portion (222), and the spraying direction of the spray head (223) and the rotation direction of the second adjusting portion (222) are perpendicular to each other; The adjustment mechanism (23) is used to adjust the rotation of the first adjustment part (221) and / or the second adjustment part (222) so that the spray head (223) faces a desired direction.

3. The automatic site flushing and dust reduction system according to claim 2 is characterized in that: The first regulating portion (221) and the second regulating portion (222) are provided with flow channels for water to pass through, and the flow channel inside the first regulating portion (221) and the flow channel inside the second regulating portion (222) are connected in a smooth arc transition.

4. The automatic site flushing and dust reduction system according to claim 1 is characterized in that: The water supply system (1) comprises: A sedimentation tank (11) for storing recycled water; A filter tank (12) is connected to the sedimentation tank (11) and is used to filter and store water in the sedimentation tank (11). The connection point between the filter tank (12) and the sedimentation tank (11) is located at the highest water level of the sedimentation tank (11); a disinfection device (13), which is connected to the filter pool (12) and is used to sterilize the water in the filter pool (12); and The clean water pool (14) is used to store sterilized and disinfected water. A water pump (5) is provided in the clean water pool (14), and the spray device (2) is connected to the water pump (5).

5. The automatic site flushing and dust reduction system according to claim 4 is characterized in that: The disinfection device (13) comprises an ultraviolet sterilization unit, and the ultraviolet sterilization unit is provided with a water inlet and a water outlet, the water inlet is connected to the filter pool (12), and the water outlet is connected to the water purification pool (14).

6. The automatic site flushing and dust reduction system according to claim 1 is characterized in that: It comprises a detection device (6), wherein the detection device (6) is used to detect the dust content in the air and output a dust content signal; the control system (4) is used to receive the dust content signal and determine whether the dust content signal exceeds a preset quantity threshold; if so, the spraying device (2) starts spraying.

7. The automatic site flushing and dust reduction system according to claim 6 is characterized in that: The detection device (6) is provided in plurality, and the plurality of the detection devices (6) are distributed in different areas of the space where dust reduction is required, and the detection device (6) is used to detect the dust content in the area; When the control system (4) receives a dust content signal exceeding a preset quantity threshold, the control regulating mechanism (23) drives the nozzle (223) toward the area where the detection device (6) whose dust content signal exceeds the preset quantity threshold is located; If the dust content signals output by the plurality of detection devices (6) exceed a preset quantity threshold, the regulating mechanism (23) drives the nozzle (223) to swing back and forth in the area where the plurality of detection devices (6) whose dust content signals exceed the preset quantity threshold are located.

8. The automatic site flushing and dust reduction system according to claim 6 is characterized in that: The detection device (6) comprises a particle concentration sensor and / or a laser scattering sensor.

9. The automatic site flushing and dust reduction system according to claim 1 is characterized in that: The water supply system (1) comprises a conduit (7), the conduit (7) is connected to a pre-buried port (8), and the connection structure (3) is connected between the pre-buried port (8) and the spray device (2).

10. The automatic site flushing and dust reduction system according to claim 9, characterized in that: The connection structure (3) comprises: A support pipe (31), the support pipe (31) being connected to the spraying portion (22), and the support pipe (31) being used to support the spraying device (2); A support portion (32) is used to support and fix the support pipe (31) so that the spray portion (22) is at a set height; A flexible connection tube (33) is connected between the support tube (31) and the embedded opening (8); the flexible connection tube (33) is a corrugated tube; a receiving cavity (9) for receiving the flexible connection tube (33) is provided in the support portion (32); the flexible connection tube (33) is folded in the receiving cavity (9); the inner wall of the receiving cavity (9) is in contact with the outer wall of the flexible connection tube (33); and an opening (10) for the flexible connection tube (33) to enter and exit is provided on the side of the receiving cavity (9) facing the embedded opening (8).

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