Dust falling device for civil engineering construction site

Abstract

The invention discloses a dust falling device for a civil engineering construction site, and relates to the technical field of building construction, the dust falling device comprises a spraying pile, the bottom of the spraying pile is fixedly connected with a device cavity, the device cavity is internally provided with a multifunctional processing mechanism, and an auxiliary guide self-cleaning mechanism is arranged above the multifunctional processing mechanism; through the arrangement of a multifunctional processing mechanism, a driving telescopic rod stretches out and draws back to drive a fan-shaped groove body to move in the vertical position, so that an arc-shaped sliding rod is indirectly controlled to change the deflection angle of an auxiliary column in the vertical direction, and when the dust raising range is enlarged, the fan-shaped groove body shrinks to control the auxiliary column to drive a spraying pipe to deflect upwards; the inertia principle of spray is fully utilized, when the spray is sprayed out from the spray end at a high speed, due to inertia, the spray can continue to keep an upward movement trend, so that the spray is diffused to a higher and wider area, the spray can effectively cover raised dust generated by high-rise construction, a raised dust source is accurately hit, and efficient dust falling is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a dust reduction device used in a civil engineering construction site. Background Art

[0002] At civil engineering construction sites, dust, as a serious form of air pollution, has greatly damaged the construction environment and surrounding air quality, and has had a serious negative impact on the health of construction workers and the construction process. With the acceleration of urbanization, the scale of civil engineering is becoming increasingly large, and the construction process is becoming more and more complex. The problem of dust pollution is becoming more and more serious, and its generation and impact range are constantly expanding.

[0003] From the perspective of the technical principles of gas purification, the current dust suppression devices at civil engineering construction sites have many obvious defects in practical applications. In terms of the key link of the liquid addition method - spray angle adjustment, the spray end angle of most traditional dust suppression devices is fixed and lacks a flexible adjustment mechanism. The environment at the construction site is complex and changeable, and the gas flow is significantly affected by the building structure, material stacking and construction activities. For example, in the construction of high-rise residential buildings, as the floors increase, the location of dust generated by operations such as high-altitude concrete pouring and material lifting continues to rise and expand, and the dust airflow forms a complex flow path under the obstruction of the building structure; and in the construction of municipal road foundations, the dust in the deep excavation pit is concentrated in a specific underground area, and the gas flow direction around it is significantly different from the ground material stacking area. Fixed-angle spray cannot accurately add liquid (water mist) to the dust airflow according to these complex gas flow conditions, resulting in a large amount of dust unable to fully contact with the water mist, making it difficult to achieve effective purification, and the dust reduction effect is far from expected.

[0004] In terms of the interaction between spray and gas, that is, the spray guiding function, existing spray heads generally lack an effective guiding structure. The sprayed water mist is in an irregularly dispersed state, making it difficult to accurately intersect with the dust-raising airflow and adsorb and settle the dust particles therein. In an open construction site, the dispersed spray is not only difficult to accurately enter the dust-raising airflow, but also evaporates quickly during the propagation process due to large-scale exposure to the air, resulting in a large waste of water resources. This not only increases the cost of dust reduction operations, but also makes it impossible for water mist to fully play the role of purifying gas, resulting in low dust reduction efficiency and unable to simultaneously meet the strict requirements of the construction site for dust reduction efficiency and environmental protection.

[0005] In terms of the stable operation of the equipment, the harsh environment at the construction site causes a large amount of dust to easily enter the spraying end. Once the dust gradually accumulates at the spray head, it will hinder the normal spraying of the liquid, seriously affecting the mixing effect of the spray and the dust-laden air flow, and even causing the entire dust suppression device to malfunction. At present, solving the problem of spray head blockage mainly relies on manual cleaning, which not only requires a large amount of manpower and time costs, but also during the cleaning period, the dust suppression operation is forced to be interrupted, and it is impossible to ensure the continuous and stable addition of the liquid to the dust-laden air flow, bringing great trouble to the environmental management at the construction site and seriously affecting the construction progress and environmental quality.

[0006] Therefore, a dust suppression device for civil engineering construction sites is proposed to solve the above problems. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the present invention provides a dust suppression device for civil engineering construction sites to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: A dust suppression device for civil engineering construction sites, comprising: a spray pile, the bottom of the spray pile is fixedly connected with a device cavity, a multi-functional processing mechanism is arranged in the device cavity, four groups of the multi-functional processing mechanisms are arranged around the center of the device cavity, an auxiliary guiding self-cleaning mechanism is arranged above the multi-functional processing mechanism, and a spray pipe is arranged in the auxiliary guiding self-cleaning mechanism;

[0009] The multi-functional processing mechanism is used to adjust the left, right, up and down spraying directions of the spray pipe according to different dust suppression requirements so as to achieve precise dust suppression operations;

[0010] The auxiliary guiding self-cleaning mechanism is used to guide the direction of the water mist sprayed out of the spray pipe and on this basis clean the inner wall of the spray pipe to prevent dust from adhering and blocking the mist outlet.

[0011] Preferably, the multi-functional processing mechanism includes a base, the base is fixedly connected to the inner bottom of the device cavity, a positioning body is fixedly connected to the upper surface of the base, a sliding ring is slidably connected to the outer circle of the positioning body, a sector-shaped groove body is fixedly connected to one side of the sliding ring, and a driving telescopic rod is fixedly connected to the bottom of the sector-shaped groove body, and the end of the driving telescopic rod away from the sector-shaped groove body is fixedly connected to the base.

[0012] Preferably, the multi-functional processing mechanism further includes a rotating ring, the rotating ring is rotatably connected to the middle of the upper surface of the positioning body, a Z-shaped body is rotatably connected to the rotating ring, an arc-shaped sliding rod is fixedly connected to one end of the Z-shaped body close to the sector-shaped groove body, an auxiliary column is fixedly connected to the end of the Z-shaped body away from the arc-shaped sliding rod, a resisting rod is arranged at the front end of the auxiliary column, and the arc-shaped sliding rod is slidably connected in the sector-shaped groove body.

[0013] Preferably, the auxiliary guiding self-cleaning mechanism includes an auxiliary inner cavity, which is opened at one end of the auxiliary column away from the center of the device cavity. A auxiliary spring is fixedly connected to the bottom of the auxiliary inner cavity. An electric control telescopic rod is arranged in the middle of the auxiliary spring. The electric control telescopic rod is fixedly connected to the center of the auxiliary inner cavity. One ends of the auxiliary spring and the electric control telescopic rod away from the auxiliary column are both fixedly connected with a driving body. A fixed guiding body is fixedly connected in the auxiliary inner cavity. An arc-shaped sliding groove is opened on the outer ring of the end of the fixed guiding body away from the driving body. The driving body extends through the fixed guiding body and is slidably connected in the arc-shaped sliding groove.

[0014] Preferably, the auxiliary guiding self-cleaning mechanism further includes a positioning block, which is fixedly connected to the end of the driving body away from the electric control telescopic rod. Link rods are rotatably connected to both sides of the positioning block. One ends of the two link rods away from the positioning block are both rotatably connected with a guiding piece. The inner surface of the end of the driving body close to the positioning block is connected with a cleaning ring. The spray pipe is fixedly connected to the center of the side of the fixed guiding body away from the driving body. A guiding groove is opened on the outer ring of the spray pipe. A rotating sphere is slidably connected to the outer ring of the auxiliary column. The rotating sphere is rotatably connected to the inner part of the device cavity.

[0015] Preferably, the positioning body is composed of four bent rods and a column body. An internal power source is arranged in the column body of the positioning body. A groove is opened on the surface of the sector-shaped groove body close to the sliding ring. The driving telescopic rod is electrically connected to an external controller.

[0016] Preferably, the rotating ring is driven by the internal power source of the positioning body.

[0017] Preferably, the electric control telescopic rod is driven by an external controller. The driving body is composed of a pushing piece and an arc-shaped slider. Four arc-shaped sliding grooves are arranged around the fixed guiding body.

[0018] Preferably, the cleaning ring is made of rubber. The cleaning ring is fixedly connected to the driving body through a fixed rod. The fixed rod on the cleaning ring is slidably connected in the guiding groove. Four guiding grooves are arranged around the spray pipe. The cleaning ring is slidably connected in the spray pipe through the fixed rod slidably connected in the guiding groove.

[0019] Compared with the prior art, the present invention provides a dust reduction device for civil engineering construction sites, and has the following beneficial effects:

[0020] 1. Through the setting of the multi-functional processing mechanism, the telescopic rod is driven to drive the fan-shaped groove body to move in the vertical position, thereby indirectly controlling the arc-shaped slide rod to change the deflection angle of the auxiliary column in the vertical direction. When the dust-raising range becomes larger, the fan-shaped groove body shrinks to control the auxiliary column to drive the spray pipe to deflect upward. Making full use of the inertia principle of spraying, when the spray is ejected at high speed from the spray end, due to inertia, it will continue to maintain an upward movement trend, so as to spread to a higher and wider area, enabling the spray to effectively cover the dust raised by high-rise construction, accurately strike the dust source, and achieve efficient dust reduction. On the contrary, when the dust is concentrated in a relatively low position, the spray end is adjusted downward, so that the spray can act directly on these dust reduction treatment ranges at an almost vertical angle, spraying on the excavation working surface and the freshly excavated soil, quickly suppressing the generation and spread of dust, avoiding waste of resources, and greatly improving the dust reduction efficiency.

[0021] 2. Through the setting of the built-in power supply in the positioning body, it rotates forward and backward within the range of 0-90°, thereby driving the rotating ring to rotate and indirectly adjusting the swinging direction of the auxiliary column. The swinging spray pipe can avoid the occurrence of spray dead angles or overly concentrated local water mist, enabling the water mist to be alternately sprayed at different positions, making the water mist distribution in the dust reduction area more uniform, and reducing the possibility of dust accumulation in certain areas. This can ensure that the dust in the entire construction area can be effectively suppressed, improving the overall dust reduction quality. Moreover, the dust sources at civil engineering construction sites are complex and often dynamic. For example, the dust generated during vehicle driving, material handling, etc. will constantly change positions with the air flow. The swinging of the spray pipe can better track these dynamic dusts, timely adjust the spray direction, enable the water mist to fully contact and combine with the dust, and thus more effectively capture and settle the dust, reducing the dust concentration in the air.

[0022] 3. Under the setting of the multi-functional processing mechanism, the spraying angle of the spray pipe is adjusted in multiple directions, endowing the dust reduction device with strong versatility and flexibility. Without frequent equipment replacement or re-layout, it can adapt to the dust reduction requirements in different construction stages, different areas, and different wind conditions, accurately control the spray range according to actual needs, and avoid unnecessary spray waste. And when the wind is strong and the wind direction is clear, if the wind blows from above to the construction site, the spray end is adjusted upward to make the spray direction as consistent with the wind direction as possible. At this time, the spray can spread farther and wider with the help of its own inertia and the pushing effect of the wind. The wind not only does not disperse the spray, but instead becomes a boost, increasing the contact opportunity between the water mist and the high-altitude dust, and significantly improving the capture rate of the high-altitude dust. On the contrary, if the wind blows from below to the construction area, the spray end is adjusted downward. The spray is less affected by the wind. Since the spray direction is opposite to the wind direction, the wind is difficult to cause great interference to it. The spray can stably act on the dust near the ground. Even in a strong wind environment, the spray can still accurately cover the material surface and effectively suppress the dust, ensuring that the dust reduction effect is not affected by the wind.

[0023] 4. Through the setting of the auxiliary guiding self-cleaning mechanism, the expansion and retraction of the electric control telescopic rod indirectly control the expansion and retraction of the guiding piece. Under the action of the expansion of the guiding piece, its horn-shaped setting can guide the spray, making the water mist concentrate and spray in a specific direction. During the dust suppression operation, the water mist can be accurately guided to the area where the dust is generated, improving the contact efficiency between the water mist and the dust, enhancing the dust suppression effect. Moreover, when the guiding piece expands, its shape structure can expand the coverage range of the spray in both the horizontal and vertical directions. As the guiding piece opens, the spray sprays out from the outlet of the smaller spray pipe and diffuses around under the guidance of the guiding piece, thus being able to cover a larger area, reducing the dust suppression blind area, and making the dust suppression work more comprehensive and efficient. And the design of retractable extension enables the guiding piece to be adjusted according to different construction scenarios and dust suppression requirements. In areas with a large amount of dust and a wide range, the guiding piece is fully extended and expanded to maximize the spray coverage range and enhance the guiding effect. While in some areas with relatively narrow space or high requirements for spray accuracy, the expansion piece can be appropriately retracted to reduce the spray diffusion angle and achieve precise dust suppression.

[0024] 5. Through the setting of the cleaning ring, as the guiding piece moves and expands, it reciprocates in the spray pipe, thereby scraping the inner wall of the spray pipe during the reciprocating process, avoiding the dust in the construction site from drifting and accumulating in the spray pipe, resulting in port blockage and affecting the spray effect. The cleaning ring cleans the inner surface of the spray pipe during the movement and expansion of the guiding piece, can timely remove the attached dust, keep the spray pipe unobstructed, ensure the stable operation of the spray system, maintain good dust suppression performance, and self-cleaning can avoid the dust from blocking the spray pipe, increasing the internal pressure of the spray pipe, and causing damage to the spray pipe and its connecting components during long-term use, reducing equipment failures and wear caused by dust accumulation, thereby prolonging the service life of the spray head and the entire dust suppression equipment, reducing equipment maintenance costs and replacement frequencies, and further maintaining a uniform and stable spray on the inner surface of the spray pipe to improve the dust suppression quality. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is an internal view structure diagram of the device cavity of the present invention;

[0027] Figure 3 It is a structure diagram of the local multi-functional processing mechanism and the auxiliary guiding self-cleaning mechanism of the present invention;

[0028] Figure 4 It is a structure diagram of the multi-functional processing mechanism of the present invention;

[0029] Figure 5 It is a structure diagram of the auxiliary guiding self-cleaning mechanism of the present invention;

[0030] Figure 6 For the present invention Figure 5 The enlarged structure diagram at position A in the present invention;

[0031] Figure 7 The disassembled structure diagram of the auxiliary guiding and self-cleaning mechanism of the present invention;

[0032] Figure 8 The partial sectional view structure diagram of the auxiliary guiding and self-cleaning mechanism of the present invention.

[0033] In the figure:

[0034] 1. Spray pile; 11. Device cavity;

[0035] 2. Multifunctional processing mechanism; 21. Base; 22. Positioning body; 23. Sliding ring; 24. Sector groove body; 25. Driving telescopic rod; 26. Rotating ring; 27. Z-shaped body; 28. Arc-shaped sliding rod; 29. Auxiliary column;

[0036] 3. Auxiliary guiding and self-cleaning mechanism; 31. Auxiliary inner cavity; 32. Auxiliary spring; 33. Electric control telescopic rod; 34. Driving body; 35. Fixed guiding body; 36. Arc-shaped sliding groove; 37. Positioning block; 38. Connecting rod; 39. Guiding piece; 310. Cleaning ring; 311. Spray pipe; 312. Guiding groove; 313. Rotating sphere. Specific embodiments

[0037] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Next, the present invention will be further described in detail according to the drawings and embodiments.

[0039] Embodiment

[0040] Please refer to Figures 1 to 4 as shown:

[0041] To solve the problems mentioned in the technical solution, the embodiment of the present application provides a dust reduction device for a civil engineering construction site, including: a spray pile 1, the bottom of the spray pile 1 is fixedly connected with a device cavity 11, a multifunctional processing mechanism 2 is arranged in the device cavity 11, four groups of the multifunctional processing mechanisms 2 are arranged around the center of the device cavity 11, an auxiliary guiding and self-cleaning mechanism 3 is arranged above the multifunctional processing mechanism 2, and a spray pipe 311 is arranged in the auxiliary guiding and self-cleaning mechanism 3;

[0042] The multi-functional processing mechanism 2 is used to adjust the left-right and up-down spraying directions of the spray pipe 311 according to different dust reduction requirements, so as to achieve precise dust reduction operations. The multi-functional processing mechanism 2 includes a base 21, which is fixedly connected to the inner bottom of the device cavity 11. The upper surface of the base 21 is fixedly connected with a positioning body 22. The positioning body 22 is composed of four curved rods and a cylinder. An internal power supply is arranged in the cylinder of the positioning body 22. A sliding ring 23 is slidably connected to the outer circle of the positioning body 22. One side of the sliding ring 23 is fixedly connected with a sector-shaped groove body 24. A groove is opened on the side of the sector-shaped groove body 24 close to the sliding ring 23. The bottom of the sector-shaped groove body 24 is fixedly connected with a driving telescopic rod 25. The driving telescopic rod 25 is electrically connected to an external controller. The driving telescopic rod 25 is mainly used to push the sector-shaped groove body 24 to lift, so as to control the vertical spraying direction of the spray pipe 311. The end of the driving telescopic rod 25 far from the sector-shaped groove body 24 is fixedly connected to the base 21;

[0043] The multi-functional processing mechanism 2 further includes a rotating ring 26, which is mainly used to rotate and adjust the spraying direction of the spray pipe 311 in the horizontal direction. The rotating ring 26 is rotatably connected to the middle of the upper surface of the positioning body 22. The rotating ring 26 is driven by the internal power supply of the positioning body 22. A Z-shaped body 27 is rotatably connected inside the rotating ring 26. One end of the Z-shaped body 27 close to the sector-shaped groove body 24 is fixedly connected with an arc-shaped sliding rod 28. The end of the Z-shaped body 27 far from the arc-shaped sliding rod 28 is fixedly connected with an auxiliary column 29. A resisting rod is arranged at the front end of the auxiliary column 29. The arc-shaped sliding rod 28 is slidably connected in the sector-shaped groove body 24.

[0044] A further embodiment: Please refer to Figures 5 to 8 as shown:

[0045] The auxiliary guiding self-cleaning mechanism 3 includes an auxiliary inner cavity 31, which is opened at one end of the auxiliary column 29 far from the center of the device cavity 11. An auxiliary spring 32 is fixedly connected to the bottom of the auxiliary inner cavity 31. An electric control telescopic rod 33 is arranged in the middle of the auxiliary spring 32. The electric control telescopic rod 33 is driven by an external controller. The electric control telescopic rod 33 is fixedly connected to the center of the auxiliary inner cavity 31. One ends of the auxiliary spring 32 and the electric control telescopic rod 33 far from the auxiliary column 29 are both fixedly connected with a driving body 34. The driving body 34 is mainly used to control the opening and closing of the guiding piece 39 through reciprocating motion. The driving body 34 is composed of a pushing piece and an arc-shaped slider. A fixed guiding body 35 is fixedly connected inside the auxiliary inner cavity 31. An arc-shaped sliding groove 36 is opened on the outer circle of the end of the fixed guiding body 35 far from the driving body 34. Four arc-shaped sliding grooves 36 are arranged around the fixed guiding body 35. The driving body 34 extends through the fixed guiding body 35 and is slidably connected in the arc-shaped sliding groove 36;

[0046] The auxiliary guiding self-cleaning mechanism 3 further includes a positioning block 37. The positioning block 37 is fixedly connected to one end of the driving body 34 away from the electric control telescopic rod 33. Both sides of the positioning block 37 are rotatably connected with connecting rods 38. One ends of the two connecting rods 38 away from the positioning block 37 are rotatably connected with guiding pieces 39. The guiding pieces 39 are mainly used to expand and guide the water mist in the spray pipe 311. One end inner surface of the driving body 34 close to the positioning block 37 is connected with a cleaning ring 310. The cleaning ring 310 is mainly used to clean the inner wall of the spray pipe 311 to prevent construction site dust from blocking the spray pipe 311. The cleaning ring 310 is made of rubber material. The cleaning ring 310 and the driving body 34 are fixedly connected through a fixing rod. The fixing rod on the cleaning ring 310 is slidably connected in the guiding groove 312. The spray pipe 311 is fixedly connected to the center of the surface of the fixed guiding body 35 away from the driving body 34. A guiding groove 312 is opened on the outer circle of the spray pipe 311. Four guiding grooves 312 are opened around the spray pipe 311. The cleaning ring 310 is slidably connected in the spray pipe 311 through the fixing rod slidably connected in the guiding groove 312. The outer circle of the auxiliary column 29 is slidably connected with a rotating sphere 313. The rotating sphere 313 is rotatably connected to the inner part of the device cavity 11.

[0047] The working principle of all the contents in the above embodiments is as follows:

[0048] In the initial state: The auxiliary column 29 and the device cavity 11 are in a parallel position. The driving telescopic rod 25 and the electric control telescopic rod 33 are not started. The guiding piece 39 is not expanded, and the auxiliary spring 32 is not stretched.

[0049] The following is the working process of the multifunctional processing mechanism 2 that adjusts the left, right, up, and down spray directions of the spray pipe 311 according to different dust reduction requirements to achieve precise dust reduction operations:

[0050] During use, the spray pile 1 is installed at a position near the dust source at the construction site, and the spray pipe 311 is connected to a water source. When dust is generated during the construction process at the construction site, the operator adjusts the direction of the spray pipe 311 according to the actual situation. If the dust range is large, the telescopic rod 25 is driven to start and contract downward through an external controller, thereby pulling the fan-shaped groove body 24 fixedly connected thereto to move vertically downward. During this movement, the downward movement of the fan-shaped groove body 24 causes the arc-shaped slide rod 28 sliding inside it and the sliding ring 23 fixedly connected thereto to move synchronously downward, assisting the stable vertical up-and-down movement of the fan-shaped groove body 24. During this process, the downward movement of the arc-shaped slide rod 28 causes it to deflect around the Z-shaped body 27 as the axis. Under this deflection, the Z-shaped body 27 rotates within the rotating ring 26, and the auxiliary column 29 fixedly connected to the Z-shaped body 27 deflects upward around the Z-shaped body 27. Since the auxiliary column 29 is rotationally connected to the device cavity 11 through the rotating sphere 313, when the auxiliary column 29 deflects upward, the auxiliary column 29 drives the rotating sphere 313 to rotate, thereby completing the upward adjustment of the spray pipe 311 inside the auxiliary column 29. Further, when the water source is pressurized by the high-pressure water pump and delivered to the spray pipe 311, the spray pipe 311 disperses the high-pressure water flow into fine water mist particles and sprays them into the air. Under the action of the vertical upward deflection of the spray pipe 311, after the water mist particles are ejected, they move in a parabolic motion under the action of gravity. When the spray pipe 311 is horizontally upward, the water mist has an upward initial velocity component in the vertical direction, so that during the upward movement of the water mist, the vertical velocity gradually decreases, and it starts to fall after reaching the highest point. During this process, the water mist continues to move at a relatively stable speed in the horizontal direction. Compared with when the spray pipe 311 is horizontal or downward, the movement range of the water mist in the vertical direction is larger, and the residence time in the air is longer, thereby increasing the movement distance in the horizontal direction and expanding the overall spraying range;

[0051] Conversely, driving the telescopic rod 25 to extend and push the fan-shaped groove body 24 to move upward, the arc-shaped slide rod 28 deflects in the reverse direction around the Z-shaped body 27 as the axis, thereby controlling the auxiliary column 29 to deflect downward. After the water is ejected from the horizontally downward spray pipe 311 under the action of high pressure, under the action of gravity, its initial velocity in the vertical direction is downward, and the water mist will accelerate and fall to the ground. Compared with horizontal or upward spraying, the water mist does not have an upward movement process in the vertical direction, and the residence time in the air is greatly shortened, which in turn limits the movement time of the water mist in the horizontal direction, and the horizontal displacement is correspondingly reduced, thereby prompting the water mist to act on the dust reduction range more accurately and quickly;

[0052] Through the setting of the multi-functional processing mechanism 2, the telescopic rod 25 is driven to drive the fan-shaped groove body 24 to move in the vertical position, thereby indirectly controlling the arc-shaped slide rod 28 to change the deflection angle of the auxiliary column 29 in the vertical direction. When the dust-raising range becomes larger, the fan-shaped groove body 24 contracts to control the auxiliary column 29 to drive the spray pipe 311 to deflect upward. Making full use of the inertia principle of spraying, when the spray is ejected at high speed from the spray end, due to inertia, it will continue to maintain an upward movement trend, so as to spread to a higher and wider area, enabling the spray to effectively cover the dust raised during high-rise construction, accurately strike the dust source, and achieve efficient dust reduction. On the contrary, when the dust is concentrated in a relatively low position, the spray end is adjusted downward, so that the spray can act directly on these dust reduction treatment ranges at an almost vertical angle, spraying on the excavation working surface and the freshly excavated soil, quickly suppressing the generation and spread of dust, avoiding waste of resources, and greatly improving the dust reduction efficiency.

[0053] Through the setting of the built-in power supply of the positioning body 22, it rotates forward and backward within the range of 0-90°, thereby driving the rotating ring 26 to rotate, indirectly adjusting the swinging direction of the auxiliary column 29. The swinging spray pipe 311 can avoid the occurrence of spray dead angles or overly concentrated local water mist, and can make the water mist spray alternately at different positions, making the water mist distribution in the dust reduction area more uniform, reducing the possibility of dust accumulation in some areas. This can ensure that the dust in the entire construction area can be effectively suppressed, improve the overall dust reduction quality, and the dust sources at the civil engineering construction site are complex and often dynamic. For example, the dust generated during vehicle driving, material handling, etc. will constantly change its position with the air flow. The left and right swinging of the spray pipe 311 can better track these dynamic dusts, timely adjust the spray direction, make the water mist fully contact and combine with the dust, so as to more effectively capture and settle the dust and reduce the dust concentration in the air.

[0054] Furthermore, with the multi-functional processing mechanism 2 installed, the spraying angle of the multi-directionally adjustable spray pipe 311 endows the dust suppression device with strong versatility and flexibility. Without the need to frequently replace equipment or re-layout, it can adapt to the dust suppression requirements in different construction stages, different areas, and different wind conditions. It can accurately control the spraying range according to actual needs, avoiding unnecessary spraying waste. And when the wind is strong and the wind direction is clear, if the wind blows from above towards the construction site, the spray end is adjusted upwards to make the spray direction as consistent with the wind direction as possible. At this time, with the help of its own inertia and the pushing effect of the wind, the spray can spread farther and wider. Instead of dispersing the spray, the wind becomes a helping hand, increasing the contact opportunity between the water mist and the dust in the air at high altitudes, and significantly improving the capture rate of the dust in the air at high altitudes. On the contrary, if the wind blows from below towards the construction area, the spray end is adjusted downwards. The spray is less affected by the wind. Since the spray direction is opposite to the wind direction, the wind is difficult to cause great interference to it. The spray can stably act on the dust near the ground. Even in a strong wind environment, the spray can still accurately cover the surface of the material, effectively suppressing dust and ensuring that the dust suppression effect is not affected by the wind.

[0055] Please refer to the following for the above working process Figures 1 to 4 。

[0056] The following is the working process of the auxiliary guiding and self-cleaning mechanism 3 for guiding the direction of the water mist sprayed out of the spray pipe 311 and, based on this, cleaning the inner wall of the spray pipe 311 to prevent dust from adhering and blocking the mist outlet:

[0057] During use, in case of strong wind weather, it is fed back to the controller of the spray pile 1 through the wind detection device, and the operator controls the start of the electric control telescopic rod 33 to extend. During the extension of the electric control telescopic rod 33, the driving body 34 is pushed to move away from the auxiliary column 29. At this time, the auxiliary spring 32 is stretched, and then the movement of the driving body 34 causes the positioning block 37 connected to the front end of the driving body 34 to approach the front end of the spray pipe 311 until it abuts against the front end of the spray pipe 311. When the positioning block 37 gradually abuts against the front end of the spray pipe 311, the guiding piece 39 abuts against the abutting column arranged at the front end of the auxiliary column 29. Under the action of the abutting column, the guiding piece 39 is prevented from continuously moving forward. At this time, under the mutual action of the restriction of the abutting column on the guiding piece 39 and the driving body 34 pushing the positioning block 37 forward, the connecting rod 38 changes from a deflected state to a vertical state, so as to expand and spread the guiding piece 39, so that the guiding piece 39 wraps the front end of the spray pipe 311, guiding the water mist sprayed in the spray pipe 311. When strong wind comes and the airflow impacts the guiding piece 39, the inclination angle and expansion shape of the guiding piece 39 will guide the airflow to flow along the surface of the guiding piece 39, forming a relatively stable airflow channel inside the guiding piece 39, thereby weakening the direct impact of the wind on the water mist, making most of the wind bypass along the outside of the guiding piece 39, and the internal water mist is protected by the guiding piece 39 and sprayed out in a predetermined direction, increasing the contact probability between the water mist and the dust.

[0058] Through the setting of the auxiliary guiding self-cleaning mechanism 3, the expansion and storage of the guiding piece 39 are indirectly controlled by the telescopic movement of the electric control telescopic rod 33. Under the expansion effect of the guiding piece 39, its horn-shaped setting can guide the spray, making the water mist concentrate and spray in a specific direction. During the dust suppression operation, the water mist can be accurately guided to the area where the dust is generated, improving the contact efficiency between the water mist and the dust and enhancing the dust suppression effect. Moreover, when the guiding piece 39 expands, its shape structure can expand the coverage range of the spray in both the horizontal and vertical directions. As the guiding piece 39 opens, the spray sprays out from the outlet of the smaller spray pipe 311 and diffuses around under the guidance of the guiding piece 39, so as to cover a larger area, reduce the dust suppression blind area, and make the dust suppression work more comprehensive and efficient; and the design of retractable extension enables the guiding piece 39 to be adjusted according to different construction scenarios and dust suppression requirements. In areas with large dust volume and wide range, the guiding piece 39 is fully extended and expanded to maximize the spray coverage range and enhance the guiding effect; while in some areas with relatively narrow space or high requirements for spray accuracy, the expansion piece can be appropriately retracted to reduce the spray diffusion angle and achieve precise dust suppression.

[0059] Through the arrangement of the cleaning ring 310, as the guiding piece 39 moves and expands, it reciprocates within the spray pipe 311, thereby scraping the inner wall of the spray pipe 311 during the reciprocating process, avoiding the dust in the construction site from drifting and accumulating in the spray pipe 311, resulting in port blockage and affecting the spray effect. The cleaning ring 310 cleans the inner surface of the spray pipe 311 during the movement and expansion of the guiding piece 39, can timely remove the attached dust, keep the spray pipe 311 unobstructed, ensure the stable operation of the spray system, maintain good dust suppression performance, and the self-cleaning can avoid the dust from blocking the spray pipe 311, causing the internal pressure of the spray pipe 311 to increase, and the situation that the spray pipe 311 and its connecting components are damaged due to long-term use, reduce the equipment failures and wear caused by dust accumulation, thereby extending the service life of the spray head and the entire dust suppression equipment, reducing the equipment maintenance cost and replacement frequency, further keeping the inner surface of the spray pipe 311 form a uniform and stable spray, and improving the dust suppression quality.

[0060] Please refer to the above working process Figures 5 to 8 。

[0061] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0062] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Dust suppression device for civil engineering construction site, comprising: A spray pile (1), wherein a device cavity (11) is fixedly connected to the bottom of the spray pile (1), characterized in that a multifunctional processing mechanism (2) is arranged in the device cavity (11), and four groups of the multifunctional processing mechanism (2) are arranged around the center of the device cavity (11) as the axis, and an auxiliary guide self-cleaning mechanism (3) is arranged above the multifunctional processing mechanism (2), and a spray pipe (311) is arranged in the auxiliary guide self-cleaning mechanism (3); The multifunctional processing mechanism (2) is used to adjust the left-right, up-down and down-down spraying directions of the spray pipe (311) according to different dust reduction requirements, thereby achieving precise dust reduction operation; The auxiliary guiding self-cleaning mechanism (3) is used to guide the direction of the water mist sprayed from the spray pipe (311) and, based on this, clean the inner wall of the spray pipe (311) to prevent dust from adhering to and blocking the mist outlet.

2. The dust reduction device for civil engineering construction sites according to claim 1, wherein: The multifunctional processing mechanism (2) comprises a base (21), the base (21) is fixedly connected to the bottom of the device cavity (11), a positioning body (22) is fixedly connected to the upper surface of the base (21), the outer ring of the positioning body (22) is slidably connected to a sliding ring (23), one side of the sliding ring (23) is fixedly connected to a fan-shaped groove body (24), the bottom of the fan-shaped groove body (24) is fixedly connected to a driving telescopic rod (25), and one end of the driving telescopic rod (25) away from the fan-shaped groove body (24) is fixedly connected to the base (21).

3. The dust reduction device for civil engineering construction sites according to claim 2, wherein: The multifunctional processing mechanism (2) further comprises a rotating ring (26), wherein the rotating ring (26) is rotatably connected to the middle part of the upper surface of the positioning body (22), a Z-shaped body (27) is rotatably connected inside the rotating ring (26), an end of the Z-shaped body (27) close to the fan-shaped groove body (24) is fixedly connected to an arc-shaped sliding rod (28), and an end of the Z-shaped body (27) away from the arc-shaped sliding rod (28) is fixedly connected to an auxiliary column (29), a resistance rod is arranged at the front end of the auxiliary column (29), and the arc-shaped sliding rod (28) is slidably connected in the fan-shaped groove body (24).

4. The dust reduction device for civil engineering construction sites according to claim 1, characterized in that: The auxiliary guiding self-cleaning mechanism (3) comprises an auxiliary inner cavity (31), the auxiliary inner cavity (31) is arranged in one end of the auxiliary column (29) away from the center of the device cavity (11), an auxiliary spring (32) is fixedly connected to the bottom of the auxiliary inner cavity (31), an electric control telescopic rod (33) is arranged in the middle of the auxiliary spring (32), the electric control telescopic rod (33) is fixedly connected to the center of the auxiliary inner cavity (31), the auxiliary spring (32) and the electric control telescopic rod (33) are fixedly connected to the driving body (34) at one end away from the auxiliary column (29), a fixed guiding body (35) is fixedly connected in the auxiliary inner cavity (31), an arc-shaped sliding groove (36) is arranged on the outer ring of one end of the fixed guiding body (35) away from the driving body (34), and the driving body (34) extends through the fixed guiding body (35) and is slidably connected in the arc-shaped sliding groove (36).

5. The dust reduction device for civil engineering construction sites according to claim 4, characterized in that: The auxiliary guiding self-cleaning mechanism (3) further includes a positioning block (37). The positioning block (37) is fixedly connected to one end of the driving body (34) away from the electric control telescopic rod (33). Link rods (38) are rotatably connected to both sides of the positioning block (37). Guide pieces (39) are rotatably connected to one ends of the two link rods (38) away from the positioning block (37). A cleaning ring (310) is connected to the inner surface of one end of the driving body (34) close to the positioning block (37). The spray pipe (311) is fixedly connected to the center of the surface of the fixed guiding body (35) away from the driving body (34). A guiding groove (312) is formed in the outer circle of the spray pipe (311). A rotating sphere (313) is slidably connected to the outer circle of the auxiliary column (29). The rotating sphere (313) is rotatably connected to the inner upper part of the device cavity (11).

6. The dust reduction device for civil engineering construction sites according to claim 2, characterized in that: The positioning body (22) is composed of four bent rods and a column body. An internal power supply is arranged in the column body of the positioning body (22). A groove is formed in the surface of the sector-shaped groove body (24) close to the sliding ring (23). The driving telescopic rod (25) is electrically connected to an external controller.

7. The dust reduction device for civil engineering construction sites according to claim 3, characterized in that: The rotating ring (26) is driven by the internal power supply of the positioning body (22).

8. The dust reduction device for civil engineering construction sites according to claim 4, characterized in that: The electric control telescopic rod (33) is driven by an external controller. The driving body (34) is composed of a pushing piece and an arc-shaped slider. Four arc-shaped sliding grooves (36) are formed around the fixed guiding body (35).

9. The dust reduction device for civil engineering construction sites according to claim 5, characterized in that: The cleaning ring (310) is made of rubber. The cleaning ring (310) is fixedly connected to the driving body (34) through a fixed rod. The fixed rod on the cleaning ring (310) is slidably connected in the guiding groove (312). Four guiding grooves (312) are formed around the spray pipe (311). The cleaning ring (310) is slidably connected in the spray pipe (311) through the fixed rod slidably connected in the guiding groove (312).

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