Environment-friendly atmospheric dust treatment device

Abstract

The present application relates to a kind of atmospheric dust processing device for environmental protection, including rack, rotatingly connected with mounting seat on the rack, rotatingly connected with cannon barrel on the mounting seat, the rear end of the cannon barrel is provided with fan, and electric push rod is rotatingly connected between the cannon barrel and mounting seat.The present application has the advantages that: break the traditional whole air supply structure, realize the independent control of air supply and spray in partition, solve the problem of water mist drop point concentration, uneven coverage from the root.Each row of spray pipe can be individually adjusted air intake and air speed, can independently control each row of spray distance and conveying capacity, realize gradient spray from top to bottom, form continuous, uniform, closed long narrow mist curtain.Can be freely switched between two working conditions of concentrated spray and gradient spray, can take into account the needs of concentrated dust fall and long narrow area dust fall.Avoid local water accumulation and material overwetting, realize full coverage efficient dust suppression, significantly improve dust control effect and use flexibility.

Description

Technical Field

[0001] This invention relates to the field of atmospheric dust suppression technology, and in particular to an environmentally friendly atmospheric dust treatment device. Background Technology

[0002] Dust pollution is a pressing environmental problem in industrial production, construction, mining, and port operations. It not only harms the occupational health of workers but also negatively impacts the surrounding environment and can even lead to environmental compliance risks. The high incidence of occupational diseases such as coal worker's pneumoconiosis and silicosis makes dust control a core requirement for safe production and environmental compliance in these industries.

[0003] Fog cannons, as a highly efficient and convenient atomizing dust suppression device, are widely used in the treatment of various dust pollution sources due to their long-distance spraying characteristics. Their core working principle is to pressurize water with a high-pressure pump, atomize it into micron-sized droplets through the nozzle, and then spray the droplets to the target area by a high-power fan. By utilizing the collision, adsorption, and coagulation of the droplets and dust particles, dust is settled, thereby achieving the effect of dust suppression and air purification.

[0004] However, the water mist sprayed by existing fog cannons is often concentrated in a relatively small area, such as Figure 1 As shown, the water mist is carried far by the airflow blown out by the fan. Although the fog cannon is equipped with several nozzles, the area reached by the airflow blown by the fan is roughly the same, resulting in a highly concentrated water mist landing point. This easily leads to localized water accumulation, excessively wet materials, and secondary dust generation, failing to achieve uniform coverage. The fan and nozzles are controlled as a whole, making it impossible to individually adjust the water mist spray distance for different heights and areas. The spray range and coverage pattern are fixed and monotonous. Coverage can only be expanded by swinging the cannon barrel, but during the swinging process, water shortages occur at the near end and mist interruptions occur at the far end, making it impossible to form a continuous and stable fog curtain. It is difficult to flexibly switch between efficient dust suppression in concentrated areas and comprehensive coverage in narrow areas, resulting in poor applicability and an inability to meet the dust control needs of varied working conditions.

[0005] For example, a fog cannon with publication number CN110359946A, by setting up adjustment and transmission components, allows the nozzle to swing up and down along its hinge axis, increasing the spraying range. However, although it can cover a narrow area with water mist by swinging the nozzle up and down, during the swinging process, the near or far end inevitably faces a lack of subsequent water mist, affecting the dust suppression effect. Another example is a fog cannon with publication number CN111804460B, which has two nozzle mechanisms that can swing back and forth to expand the coverage area. However, similarly, when the nozzle swings towards the near end, the far end lacks water, and vice versa, making it difficult to guarantee the overall dust suppression quality.

[0006] In summary, existing fog cannons cannot form a uniform, continuous, and controllable fog curtain because the air supply and spraying cannot be zoned or independently controlled. The coverage is limited and cannot simultaneously suppress dust in concentrated areas and narrow areas, thus greatly restricting the dust suppression effect and the flexibility of use. Summary of the Invention

[0007] This invention provides an environmentally friendly atmospheric dust treatment device that can solve the problems existing in the prior art, such as the difficulty in forming a uniform, continuous, and controllable fog curtain, the single coverage form, the inability to take into account both concentrated dust suppression and dust suppression in narrow areas, and the significant limitations on dust suppression effect and usage flexibility.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an environmental protection atmospheric dust treatment device, including a frame, a mounting base rotatably connected to the frame, a cannon barrel rotatably connected to the mounting base, a fan provided at the rear end of the cannon barrel, and an electric push rod rotatably connected between the cannon barrel and the mounting base. Multiple rows of independent spray pipes are fixedly installed inside the barrel. Several atomizing nozzles are provided at the front end of each spray pipe, and each atomizing nozzle is connected to a water supply assembly. Each row of spray pipes is provided with an independent air intake adjustment component between it and the fan. The air intake adjustment component includes a movable shielding part provided between the spray pipe and the fan and a control part for adjusting the position of the movable shielding part. The position of the active shielding part is adjusted by the control unit, and the air inlet flow area of ​​the corresponding spray pipe is changed, so as to individually control the air flow and water mist delivery distance of each row of spray pipes, thereby realizing the switching between concentrated area dust suppression and narrow area fog curtain dust suppression.

[0009] Preferably, the air inlet regulating component further includes: The mounting frames, the same number as the number of rows of spray pipes, are installed between the spray pipes and the blower; Fixed perforated plates, the same number as the number of spray pipes, are fixedly connected in the mounting frame and set one-to-one with the spray pipes; The movable shielding part adopts a perforated plate set in the mounting frame. The adjustment and control part drives the movable shielding part to move, so as to change the overlap area of ​​its holes with the fixed perforated plate, thereby adjusting the air inlet flow area of ​​the spray pipe.

[0010] Preferably, the control unit is a threaded rod, the movable shielding part is threadedly connected to the threaded rod, a constraint rod is fixedly provided inside the mounting frame, and the movable shielding part is slidably sleeved on the constraint rod.

[0011] Preferably, each row of spray pipes is equipped with an independent wind speed regulating component at the end near the atomizing nozzle, which is used to adjust the outlet flow area of ​​the spray pipe to individually control the initial spray speed of each row of spray pipes, forming a gradient spray with gradually decreasing delivery capacity from top to bottom.

[0012] Preferably, the wind speed regulating component includes: The support frame is fixedly connected inside the spray pipe; The airbag is mounted on the support frame; The inflation / deflation assembly is used to inflate and deflate the airbag to change its volume and adjust the flow area at the spray nozzle outlet.

[0013] Preferably, the airbag includes a cylindrical section and a conical section, with the conical section facing the fan side for guiding airflow.

[0014] Preferably, the wind speed regulating component includes: A horizontal axis is connected inside the spray pipe and can move horizontally. Two inclined plates are symmetrically connected to a horizontal axis. Two horizontal plates are rotatably connected to the outer ends of two inclined plates; A two-way lead screw is rotatably connected inside the spray pipe, and both horizontal plates are threaded onto the two-way lead screw. The drive rod is rotatably connected inside the barrel and drives the bidirectional lead screw to rotate through a transmission gear set, which includes two meshing bevel gears.

[0015] Preferably, a handwheel is fixedly connected to one end of the drive rod, a locking bolt is provided on the handwheel, and locking holes are evenly arranged around the drive rod on the barrel. The locking bolt cooperates with the locking holes to achieve positioning and locking of the handwheel.

[0016] Preferably, the fan is a variable frequency speed-regulating axial flow fan, used to regulate the overall airflow speed, and in conjunction with the independent adjustment of each row of spray pipes, to broaden the control range of spray distance and mist curtain shape.

[0017] Compared to existing technologies, this invention, through the arrangement of a cannon barrel, electric push rod, spray pipes, fan, atomizing nozzles, and airflow regulator, incorporates several rows of spray pipes within the cannon barrel. An airflow regulator is installed between the spray pipes and the fan. During dust suppression, the airflow regulator adjusts the area of ​​each row of spray pipes near the fan, creating differences in airflow for each row and thus controlling the water mist delivery capacity of each row. This breaks away from the traditional integrated air supply structure, enabling independent zoned control of air supply and spraying, fundamentally solving the problems of concentrated water mist droplets and uneven coverage. Each row of spray pipes can individually adjust its airflow and exhaust velocity, independently controlling the spray distance and delivery capacity of each row, achieving gradient spraying from top to bottom to form a continuous, uniform, and closed narrow mist curtain. It can freely switch between concentrated spraying and gradient spraying modes, meeting the needs of both concentrated dust suppression and dust suppression in narrow areas. It avoids localized water accumulation and excessive material moisture, while achieving full coverage and efficient dust suppression, significantly improving dust control effectiveness and operational flexibility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the working state of a fog cannon in the existing technology; Figure 2 This is a schematic diagram of the working state of the present invention; Figure 3 This is a first-view structural diagram of the present invention; Figure 4 This is a schematic diagram of the second perspective structure of the present invention; Figure 5 This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 6 For the present invention Figure 5 A partial cross-sectional view of the embodiment shown; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A; Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point B; Figure 9 For the present invention Figure 5 A cross-sectional view of the mounting frame in the embodiment shown; Figure 10 This is a schematic diagram of the transverse cross-sectional structure of the wind speed regulating component according to another embodiment of the present invention; Figure 11 For the present invention Figure 10 A schematic diagram of the longitudinal section structure of the wind speed regulating component in the embodiment shown.

[0019] In the diagram: 1. Frame; 2. Mounting base; 3. Cannon barrel; 4. Electric push rod; 5. Fan; 6. Exhaust spray pipe; 7. Atomizing nozzle; 8. Water supply assembly; 9. Mounting frame; 10. Fixed perforated plate; 11. Control unit; 12. Movable shielding unit; 13. Constraint rod; 14. Support frame; 15. Cylindrical section; 16. Conical section; 17. Horizontal shaft; 18. Inclined plate; 19. Horizontal plate; 20. Two-way lead screw; 21. Drive rod; 22. Transmission gear set; 23. Handwheel; 24. Inflation / depression assembly. Detailed Implementation

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] like Figures 2 to 7 As shown, this invention provides an environmentally friendly atmospheric dust treatment device, including a frame 1, a mounting base 2 rotatably connected to the frame 1, a cannon 3 rotatably connected to the mounting base 2, a fan 5 disposed at the rear end of the cannon 3, an electric push rod 4 rotatably connected between the cannon 3 and the mounting base 2, multiple rows of independent spray pipes 6 fixedly disposed inside the cannon 3, and a plurality of atomizing nozzles 7 disposed at the front end of each spray pipe 6, the atomizing nozzles 7 being connected to a water supply assembly 8; each row of spray pipes 6 is provided with an independent air intake adjustment component between it and the fan 5, the air intake adjustment component including a movable shielding part 12 disposed between the spray pipe 6 and the fan 5 and a control unit 11 for adjusting the position of the movable shielding part 12; by adjusting the position of the movable shielding part 12 through the control unit 11, the air intake flow area of ​​the corresponding spray pipe 6 is changed, so as to individually control the air flow and water mist delivery distance of each row of spray pipes 6, realizing the switching between concentrated area dust suppression and narrow area fog curtain dust suppression.

[0022] Specifically, the basic structure of an existing fog cannon consists of a frame 1, a mounting base 2, a cannon barrel 3, a fan 5, an atomizing nozzle 7, and a water delivery assembly 8. The frame 1 supports the upper structure, ensuring overall structural stability. Preferably, the frame 1 is equipped with brake wheels at the bottom for easy movement by operators. The mounting base 2 provides a platform for the cannon barrel 3, which is rotatably connected to the frame 1. With the help of a rotary motor, the cannon barrel 3 can rotate horizontally, expanding the coverage area. In traditional fog cannons, the cannon barrel 3 is a hollow structure used to deliver airflow and provide a mounting platform for the fan 5, atomizing nozzle 7, and other components. In this application, it serves only as a supporting structure, providing a mounting platform for the fan 5, atomizing nozzle 7, and spray pipe 6; the function of delivering airflow is achieved by the spray pipe 6. The atomizing nozzle 7 is used to break high-pressure water into micron-sized droplets; the finer the droplets, the better the dust adsorption effect. The water supply assembly 8 is used to deliver high-pressure water to the atomizing nozzle 7. It should include at least a high-pressure water pump and a water supply pipeline. To prevent clogging of the atomizing nozzle 7, a filter is usually also provided to filter impurities in the water. In addition, most fog cannons are also equipped with an electric push rod 4 to adjust the vertical elevation angle of the cannon barrel 3 and control the spray height range. It should be noted that this device should also be equipped with a corresponding control and power system, including but not limited to an electrical control box or PLC controller for controlling start / stop, rotation, pitch, and operation of the water pump and fan; an operation panel or remote control for remote or on-site operation of the device; a frequency converter for adjusting the fan speed to achieve adjustable wind speed; and a power unit motor or diesel engine to provide power to the fan and water pump.

[0023] The airflow regulating component adjusts the airflow rate entering the spray pipe 6 by adjusting the area of ​​the spray pipe 6 near the fan 5 that allows airflow to pass through. Specifically, this can be achieved by installing an adjustable baffle structure inside the spray pipe 6, such as a butterfly valve-like baffle, to block the incoming air. Alternatively, a flexible spray pipe 6 can be used, allowing it to expand or contract as needed. Another option is to install an adjustable baffle structure between the spray pipe 6 and the fan 5, such as two staggered perforated plates, adjusting the airflow rate by controlling the overlap area of ​​the mesh openings of the two perforated plates. The so-called "mist curtain dust suppression" refers to the continuous spraying of water mist within a narrow area, creating a narrow, curtain-like structure to suppress dust in that area.

[0024] In practical use, when dust suppression is needed over a large area, the airflow regulating component adjusts the area of ​​each row of spray pipes 6 near the fan 5 to allow airflow through, creating differences in the airflow of each row of spray pipes 6. This controls the water mist delivery capacity of each row of spray pipes 6, allowing the water mist to be delivered in a gradient from top to bottom, forming a narrow "fog curtain" for comprehensive dust suppression over a narrow area. When dust suppression is needed over a relatively concentrated area, the airflow regulating component makes the area of ​​all spray pipes 6 near the fan 5 the same, ensuring consistent airflow and water mist delivery capacity. The water mist is then concentrated and delivered to the target area for dust suppression.

[0025] like Figures 3 to 7 as well as Figure 9 As shown, in order to achieve the goal of varying the air intake volume of each row of spray pipes 6, and thus varying the water mist delivery capacity of each row of spray pipes 6, preferably, the air intake regulating component further includes: Mounting frames 9, the number of which is the same as the number of rows of spray pipes 6, are set between spray pipes 6 and blower 5; The number of fixed perforated plates 10 is the same as the number of spray pipes 6, and they are fixedly connected in the mounting frame 9, and are set one-to-one with the spray pipes 6. The movable shielding part 12 is a perforated plate set in the mounting frame 9. The adjustment and control part 11 drives the movable shielding part 12 to move, so as to change the overlap area of ​​its holes with the fixed perforated plate 10, thereby adjusting the air inlet flow area of ​​the spray pipe 6.

[0026] Specifically, the mounting frame 9 provides a mounting platform and space for the fixed perforated plate 10, the movable shielding part 12, and the control unit 11. Its length should cover the corresponding row of spray pipes 6. The fixed perforated plate 10 works in conjunction with the movable shielding part 12. The movement of the movable shielding part 12 causes the holes of both to overlap. The control unit 11 moves the perforated plate 12, changing the overlapping area of ​​the holes. This changes the area of ​​the spray pipes 6 that allows airflow, resulting in differences in the water mist delivery capacity of each row of spray pipes 6. The control unit 11 can be in the form of an electric push rod, a lead screw threaded to the movable shielding part 12, or similar components.

[0027] like Figure 7 and Figure 9 As shown, in order to achieve high-resolution and convenient adjustment of the position of the movable shielding part 12, and to make the overlapping area of ​​the movable shielding part 12 and the holes of the fixed perforated plate 10 adjustable with high precision, preferably, the control unit 11 adopts a threaded rod, the movable shielding part 12 is threadedly connected to the threaded rod, and a constraint rod 13 is fixedly provided in the mounting frame 9, and the movable shielding part 12 is slidably sleeved on the constraint rod 13.

[0028] Specifically, rotating the threaded rod causes the movable shielding part 12 on it to move. After the movable shielding part 12 moves, the overlap area between it and the holes of the fixed perforated plate 10 changes, thus changing the area of ​​the spray pipe 6 through which airflow can pass. A constraint rod 13 is installed within the mounting frame 9. The constraint rod 13 can constrain and guide the movable shielding part 12, preventing it from displacing in other directions. As can be seen from the above working principle, both the threaded rod and the constraint rod 13 should have sufficient strength to avoid bending under stress, which would affect normal operation.

[0029] like Figures 5 to 6 as well as Figure 8 As shown, in order to expand the water mist spray range and enable the device to achieve precise and comprehensive dust suppression at the target location, preferably, each row of spray pipes 6 is equipped with an independent wind speed regulating component at the end near the atomizing nozzle 7, which is used to adjust the flow area at the outlet of the spray pipe, so as to individually control the initial spray speed of each row of spray pipes, forming a gradient spray with gradually decreasing conveying capacity from top to bottom.

[0030] Specifically, since a certain basic airflow is required for the water mist to be delivered to the target area, and the diameter of the spray pipe 6 itself limits the upper limit of the airflow, adjusting the airflow into the spray pipe 6 to adjust the water mist delivery range has upper and lower limits. Based on this, a wind speed regulator is installed at the front end of the spray pipe 6. By adjusting the speed of the airflow exiting the spray pipe 6, the initial velocity of the water mist exiting each row of spray pipes 6 is differentiated, achieving a gradient spray effect where the delivery capacity gradually decreases from the top row to the bottom row. The greater the initial velocity of the water mist, the farther it can travel. Thus, with the combined action of the wind speed regulator and the airflow regulator, the water mist spray range is larger, and the device can achieve precise and comprehensive dust suppression over a larger target area. The wind speed regulator adjusts the airflow velocity by controlling the area through which the airflow can pass through the spray pipe 6. Based on the fluid continuity equation A1v1=A2v2, the airflow velocity changes by varying the cross-sectional area. Combining Bernoulli's principle, in steady flow, the sum of kinetic energy, pressure energy, and potential energy remains constant along the same streamline. Increasing the kinetic energy of the airflow improves the spray distance and the concentration of the water mist.

[0031] like Figures 5 to 6 as well as Figure 8 As shown, in order to achieve precise control of the airflow speed from the spray pipe 6 and improve the adjustment resolution of the wind speed regulator, so that the water mist can be accurately delivered to the target area, preferably, the wind speed regulator includes: The support frame 14 is fixedly connected inside the spray pipe 6; The airbag is mounted on the support frame 14; The inflation / deflation assembly 24 is used to inflate and deflate the airbag to change the airbag volume and adjust the flow area of ​​the spray pipe 6 outlet.

[0032] Specifically, the support frame 14 provides an installation platform for the airbag. The airbag is used to adjust the area of ​​the outlet end of the spray pipe 6 that allows airflow to pass through. When the airbag is inflated using the inflation / deflation assembly 24, the airbag expands and occupies more space within the spray pipe 6, reducing the area of ​​the spray pipe 6 that allows airflow to pass through. With a smaller area, the airflow speed increases, resulting in a higher initial velocity of the water mist, enabling it to be delivered to a farther location. When the gas inside the airbag is released, the airbag shrinks, occupying less space within the spray pipe 6, increasing the area of ​​the spray pipe 6 that allows airflow to pass through, slowing the airflow speed, and thus reducing the delivery distance.

[0033] It should be noted that the airbag should be positioned as centrally as possible within the spray pipe 6, adjusting the ventilation area of ​​the spray pipe 6 from the middle position. This ensures a uniform surrounding area, maintaining the same airflow velocity at different positions. This allows water mist from different atomizing nozzles 7 to achieve the same initial velocity, ensuring that water mist from the same row is delivered to the same location. Furthermore, since the airbag needs to face high-speed airflow, it must meet requirements such as high tear strength, high dynamic fatigue resistance, low permeability, abrasion resistance, resistance to airflow erosion, and heat resistance. A structure using aramid (Kevlar) composite fabric combined with a TPU / silicone rubber coating can be selected. The aramid fabric serves as the reinforcing layer, coated on both sides with TPU or silicone rubber, resulting in extremely high strength (tensile strength ≈ 2000MPa), high modulus, extremely strong tear resistance, and temperature resistance from -40℃ to 200℃, capable of withstanding instantaneous temperatures above 300℃. It also offers abrasion resistance, wind erosion resistance, fatigue resistance, low creep, good airtightness, and controllable permeability through the coating. Alternatively, materials or structures suitable for high-speed airflow, outdoor, and humid working environments can be selected, such as high-density nylon 66 (PA66) fabric with silicone rubber / TPU coating, or high-strength polyester (PET) fabric with TPU coating.

[0034] like Figure 8 As shown, in order to achieve smooth gas flow at the wind speed regulating component and ensure the device's ability to deliver water mist, preferably, the airbag includes a cylindrical section 15 and a conical section 16, with the conical section 16 facing the fan 5 to guide the airflow.

[0035] Specifically, because the airbag alters the flow area of ​​the spray nozzle 6 near the atomizing nozzle 7, the gas flowing to this point impacts the airbag, creating eddies and other phenomena that affect gas delivery. Therefore, the airbag is designed as a two-section structure comprising a cylindrical section 15 and a conical section 16. The conical section 16 guides the airflow, causing it to turn around after reaching the airbag, achieving its final adjusted speed at the cylindrical section 15. Furthermore, this structural design also reduces the impact of airflow on the airbag, thus reducing its operating pressure.

[0036] like Figures 10 to 11 As shown, in order to achieve precise control of the airflow speed from the spray pipe 6 and improve the adjustment resolution of the wind speed regulator, so that the water mist can be accurately delivered to the target area, preferably, the wind speed regulator includes: The horizontal axis 17 is horizontally movable and connected within the spray pipe 6; Two inclined plates 18 are symmetrically connected to a horizontal axis 17. Two horizontal plates 19 are rotatably connected to the outer ends of two inclined plates 18, respectively; A bidirectional lead screw 20 is rotatably connected inside the spray pipe 6, and both horizontal plates 19 are threadedly connected to the bidirectional lead screw 20. The drive rod 21 is rotatably connected inside the barrel 3 and drives the bidirectional lead screw 20 to rotate through the transmission gear set 22, which includes two meshing bevel gears.

[0037] Specifically, rotating the drive rod 21 drives the bidirectional lead screw 20 to rotate via the transmission gear set 22. The bidirectional lead screw 20 drives two horizontal plates 19 to move synchronously towards or away from each other, thereby driving two inclined plates 18 to rotate. The horizontal shaft 17 translates, changing the tilt angle of the inclined plates 18. This allows adjustment of the area of ​​the spray pipe 6 near the atomizing nozzle 7 that allows airflow. The horizontal shaft 17 can be horizontally movable by creating a horizontal groove on the inner wall of the spray pipe 6. One of the two inclined plates 18 can be connected to the middle of the horizontal shaft 17, and the other to both ends of the horizontal shaft 17. Preferably, both are semi-circular plates, so that changes in their angles not only cause vertical changes in the area of ​​the spray pipe 6 that allows airflow, but also horizontal changes, making the airflow velocity output by the spray pipe 6 more uniform, and thus ensuring that the water mist sprayed from the same spray pipe 6 is at roughly the same position. The bidirectional lead screw is a precision transmission element that achieves synchronous bidirectional movement of the nut through a left- or right-hand threaded structure design. Two threads with opposite directions are machined on the same lead screw, one right-handed and one left-handed. When the lead screw rotates, the two horizontal plates 19 move synchronously in the same or opposite directions, achieving synchronous push and pull, torque balance and zero backlash positioning.

[0038] In addition, the wind speed regulating component mentioned above is set horizontally, but it can also adopt a corresponding vertical structure. Specifically, the horizontal axis 17 is changed to a vertical state, the two inclined plates 18 and the two horizontal plates 19 are arranged vertically, and the two-way screw 20 is arranged horizontally. In this way, a similar purpose as the above structure can be achieved.

[0039] like Figure 10As shown, in order to ensure that the inclined plate 18 can be locked after the position is adjusted, and to ensure that the spraying speed of each row of spray pipes 6 is the speed required after adjustment, preferably, one end of the drive rod 21 is fixedly connected to a handwheel 23, the handwheel 23 is provided with a locking bolt, and the barrel 3 is provided with locking holes evenly arranged around the drive rod 21. The locking bolt cooperates with the locking holes to achieve positioning and locking of the handwheel 23.

[0040] Specifically, because the wind speed regulating component changes the area of ​​the spray pipe 6 that can be flowed through by adjusting the tilt angle of the inclined plate 18, the airflow will impact the inclined plate 18. Under the impact of the airflow, the inclined plate 18 may move in the opposite direction, which will affect the flow speed of the airflow and change the delivery distance of the water mist. Based on this, a handwheel 23 is provided at the end of the drive rod 21, and a locking bolt is used to lock the handwheel 23 with the locking hole. After the handwheel 23 is locked, the drive rod 21 is locked, which in turn locks the bidirectional lead screw 20, the horizontal plate 19, and the inclined plate 18, preventing the inclined plate 18 from changing angle and ensuring that the spray speed of each row of spray pipes 6 is the speed required after adjustment.

[0041] In order to expand the water mist spray range and enable the device to achieve precise and comprehensive dust suppression at the target location, preferably, the fan 5 is a variable frequency speed-regulating axial flow fan, which is used to adjust the overall airflow speed and, together with the independent adjustment of each row of spray pipes 6, broadens the control range of spray distance and mist curtain shape.

[0042] Specifically, due to the size limitations of the wind speed regulating component and the diameter limitations of the spray pipe 6, there are upper and lower limits to the water mist delivery distance when adjusting the airflow speed. Similarly, the airflow regulating component for adjusting the airflow into the spray pipe 6 also has upper and lower limits, thus limiting the distance the device can spray water mist. Therefore, the fan 5 uses a variable frequency speed-regulating axial flow fan, enabling low-speed short-distance spraying and high-speed long-distance spraying, covering multiple scenarios with a single unit. Graded wind speed adjustment controls the droplet diffusion angle and concentration, achieving a wider, more uniform, and more tightly sealed fog curtain, significantly improving dust suppression. Variable frequency start-up eliminates inrush current, reducing wear on the fan, motor, and electrical control system, minimizing vibration and noise, and extending the overall machine's lifespan. In headwinds, the wind speed compensation range can be increased; in light winds, the wind speed can be reduced to prevent excessive droplet dispersion, resulting in a more stable fog curtain that is less prone to breakage.

[0043] Compared to existing technologies, this invention, through the arrangement of a cannon barrel 3, an electric push rod 4, spray pipes 6, a fan 5, atomizing nozzles 7, and airflow regulating components, sets up several rows of spray pipes 6 within the cannon barrel 3. An airflow regulating component is installed between the spray pipes 6 and the fan 5. During dust suppression spraying, the airflow regulating component can adjust the area of ​​each row of spray pipes 6 near the fan 5, creating differences in the airflow to each row, thereby controlling the water mist delivery capacity of each row. This breaks away from the traditional integrated air supply structure, achieving independent zoned control of air supply and spraying, fundamentally solving the problems of concentrated water mist droplets and uneven coverage. Each row of spray pipes can individually adjust its airflow and exhaust velocity, independently controlling the spray distance and delivery capacity of each row, achieving gradient spraying from top to bottom, forming a continuous, uniform, and closed narrow mist curtain. It can freely switch between concentrated spraying and gradient spraying modes, meeting the needs of both concentrated dust suppression and dust suppression in narrow areas. It avoids localized water accumulation and excessive material moisture, while achieving full coverage and efficient dust suppression, significantly improving dust control effectiveness and operational flexibility.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An environmentally friendly atmospheric dust treatment device, comprising a frame, a mounting base rotatably connected to the frame, a cannon barrel rotatably connected to the mounting base, a fan disposed at the rear end of the cannon barrel, and an electric push rod rotatably connected between the cannon barrel and the mounting base, characterized in that: Multiple rows of independent spray pipes are fixedly installed inside the barrel. Several atomizing nozzles are provided at the front end of each spray pipe, and each atomizing nozzle is connected to a water supply assembly. Each row of spray pipes is provided with an independent air intake adjustment component between it and the fan. The air intake adjustment component includes a movable shielding part provided between the spray pipe and the fan and a control part for adjusting the position of the movable shielding part. The position of the active shielding part is adjusted by the control unit, and the air inlet flow area of ​​the corresponding spray pipe is changed, so as to individually control the air flow and water mist delivery distance of each row of spray pipes, thereby realizing the switching between concentrated area dust suppression and narrow area fog curtain dust suppression.

2. The environmental protection atmospheric dust treatment device according to claim 1, characterized in that, The air inlet regulating component also includes: The mounting frames, the same number as the number of rows of spray pipes, are installed between the spray pipes and the blower; Fixed perforated plates, the same number as the number of spray pipes, are fixedly connected in the mounting frame and set one-to-one with the spray pipes; The movable shielding part is a perforated plate set in the mounting frame. The adjustment and control part drives the movable shielding part to move, so as to change the overlap area of ​​its holes with the fixed perforated plate, thereby adjusting the air inlet flow area of ​​the spray pipe.

3. The environmental protection atmospheric dust treatment device according to claim 2, characterized in that: The control unit adopts a threaded rod, the movable shielding part is threadedly connected to the threaded rod, a constraint rod is fixedly provided inside the mounting frame, and the movable shielding part is slidably sleeved on the constraint rod.

4. The environmental protection atmospheric dust treatment device according to claim 1, characterized in that: Each row of spray pipes is equipped with an independent wind speed regulating component at the end near the atomizing nozzle, which is used to adjust the flow area at the outlet of the spray pipe to individually control the initial spray speed of each row of spray pipes, forming a gradient spray with gradually decreasing delivery capacity from top to bottom.

5. The environmental protection atmospheric dust treatment device according to claim 4, characterized in that, The wind speed regulating component includes: The support frame is fixedly connected inside the spray pipe; The airbag is mounted on the support frame; The inflation / deflation assembly is used to inflate and deflate the airbag to change its volume and adjust the flow area at the spray nozzle outlet.

6. The environmental protection atmospheric dust treatment device according to claim 5, characterized in that: The airbag includes a cylindrical section and a conical section, with the conical section facing the fan side to guide airflow.

7. The environmental protection atmospheric dust treatment device according to claim 4, characterized in that, The wind speed regulating component includes: A horizontal axis is connected inside the spray pipe and can move horizontally. Two inclined plates are symmetrically connected to a horizontal axis. Two horizontal plates are rotatably connected to the outer ends of two inclined plates; A two-way lead screw is rotatably connected inside the spray pipe, and both horizontal plates are threaded onto the two-way lead screw. The drive rod is rotatably connected inside the barrel and drives the bidirectional lead screw to rotate through a transmission gear set, which includes two meshing bevel gears.

8. The environmental protection atmospheric dust treatment device according to claim 7, characterized in that: A handwheel is fixedly connected to one end of the drive rod, and a locking bolt is provided on the handwheel. Locking holes are evenly arranged around the drive rod on the barrel. The locking bolt cooperates with the locking holes to achieve positioning and locking of the handwheel.

9. The environmental protection atmospheric dust treatment device according to claim 1, characterized in that: The fan is a variable frequency speed-regulating axial flow fan, used to regulate the overall airflow speed, and combined with the independent adjustment of each row of spray pipes, it expands the control range of spray distance and mist curtain shape.

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