A dust removal device for municipal environmental protection engineering

Abstract

The present application relates to a kind of municipal environmental protection engineering dust removal device, belong to dust removal technical field, the device solves the problem that existing technology cannot adjust the direction of injection and cannot adjust the angle between the direction of injection mechanism to the axis direction of air outlet end in the mist cannon machine, the device is provided with injection mechanism in the air outlet end of mist cannon machine, injection mechanism includes atomizing nozzle, motor is also provided in the air outlet end, motor is drivingly connected with atomizing nozzle, atomizing nozzle is rotated by motor work, for adjusting the angle between atomizing nozzle and the axis direction of air outlet end, to adjust the direction of spray, in addition, the mist cannon machine in the present application is also driven by the cooperation of motor and gear ring Multiple spray units formed by spray mechanism are shrunk in diameter, in addition, spiral flow channel is also provided in the mist cannon machine, the spray range of mist cannon machine is improved by spiral flow channel and shrinkage treatment, and the dust removal effect of mist cannon machine is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology, and more specifically, to a dust removal device for municipal environmental protection projects. Background Technology

[0002] During municipal engineering construction, a large amount of dust is often generated. Dust in the air seriously affects air quality and the construction environment. Therefore, dust removal devices are needed to treat dust and reduce the dust content in the air. In practice, fog cannons are often used as a dust removal device to treat dust in the air. Fog cannons spray a large amount of water mist, which adsorbs dust particles in the air and causes them to settle, thereby achieving the purpose of dust reduction, reducing the dust particle content in the air, and ensuring a good construction environment.

[0003] Currently, there are various types of fog cannons. For example, Chinese utility model CN223221192U discloses a dust suppression fog cannon. This fog cannon includes a fog cannon barrel, which is rotatably mounted on the top of the base via an angle adjustment mechanism. A spraying mechanism for spraying is set at the front end of the fog cannon barrel. A blower mechanism is set inside the fog cannon barrel, which is used to blow the water mist sprayed by the spraying mechanism to a distance. The spraying mechanism includes multiple spray heads, a water tank, a high-pressure water pump, and a water supply pipe. The spray heads are located at the front end of the fog cannon barrel. The high-pressure water pump delivers water from the water tank to the multiple spray heads through the water supply pipe. The water is atomized and sprayed out by the spray heads to adsorb and settle dust in the air, thereby achieving the purpose of dust suppression.

[0004] Although the aforementioned fog cannon can achieve dust suppression through spraying, the inability to adjust the angle of the spray head causes some inconvenience in use. To solve this problem, Chinese invention CN121372745A discloses an atomizing device with adjustable spray angle, including a fog cannon tube. The fog cannon tube consists of a middle section, an air inlet section integrally formed at the air inlet end of the middle section, and an air outlet section integrally formed at the air outlet end of the middle section. An annular seat is fixedly installed at the end of the air outlet section, and a support cover is welded onto the annular seat. A spraying mechanism is installed inside the support cover, and a diffusion covering component is arranged therein. The diffusion covering component is used to drive the spraying mechanism to change the spraying angle, so that the spraying mechanism can spray directionally at the center area and the edge area of ​​the airflow field of the air outlet section.

[0005] Although the aforementioned atomizing device can change the spraying angle of the spraying mechanism, it can only adjust the spraying mechanism to spray in two directions: the center and the edge of the airflow field. It cannot adjust the spraying mechanism to spray in other directions, and it cannot adjust the spraying mechanism in multiple angles and directions, which causes some inconvenience to use.

[0006] To address the aforementioned problems, this invention provides a dust removal device for municipal environmental protection projects. This device allows for arbitrary adjustment of the spray mechanism's angle, enabling the spray mechanism to spray water mist at any angle, thus achieving efficient dust reduction and ensuring effective dust removal. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the invention, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0008] To address the technical problem that existing dust removal devices cannot spray dust from multiple directions and angles, the present invention adopts the following technical solution.

[0009] A dust suppression device for municipal environmental protection projects uses a mist cannon to suppress dust. The mist cannon includes a cannon barrel with an air inlet at one end and an air outlet at the other. An end cap and a snap-fit ​​cap are installed at the air outlet, forming a cavity. A spraying unit is installed within this cavity. The spraying unit consists of multiple spraying mechanisms. These mechanisms spray at the air outlet, and the mist cannon's operation generates airflow that exits from the air outlet, carrying the sprayed material to suppress dust-laden gases in the municipal construction environment. The spraying mechanisms include... The outer casing and the rotating shaft installed inside the outer casing are connected to a support frame extending into the air outlet. An atomizing nozzle is rotatably mounted on the support frame. The atomizing nozzle is connected to a connecting pipe, which is rotatably connected to the atomizing nozzle. A water supply pipe is connected to the connecting pipe, which supplies water to the atomizing nozzle. The water is atomized and sprayed out after passing through the atomizing nozzle. The atomizing nozzle is connected to the rotating shaft in the outer casing. By rotating the rotating shaft, the atomizing nozzle can be driven to spray water mist at any angle towards the axis of the air outlet.

[0010] Preferably, in the above-mentioned dust removal device, the rotating shaft extends to the outside of the outer shell and enters the support frame, where a bevel gear II is connected. A connecting rod is rotatably mounted on the support frame, and a bevel gear I is connected to the connecting rod. The bevel gear I meshes with the bevel gear II. A driven gear is connected to the atomizing nozzle, and a driving gear is connected to the end of the connecting rod. The driving gear meshes with the driven gear. When the rotating shaft drives the bevel gear II to rotate, it can drive the bevel gear I to drive the connecting rod and the driving gear to rotate, which in turn drives the driven gear to rotate, thereby adjusting the angle between the atomizing nozzle and the axis of the air outlet.

[0011] Preferably, in the above-mentioned dust removal device, the end cover is equipped with a support frame I, and a receiving cavity is formed between the support frame I and the end cover. A motor I is installed in the receiving cavity, and a bevel gear is connected to the end of the motor I. A gear ring I is also installed in the cavity formed by the fastening connection between the end cover and the fastening cover. One side of the gear ring I meshes with the bevel gear. The end of the rotating shaft in the spray mechanism extends to the outside of the outer shell and is connected to a bevel gear III. The bevel gear III meshes with the other side of the gear ring I. When the motor I works to drive the bevel gear to rotate, the bevel gear drives the gear ring I to rotate, which in turn drives the bevel gear III to drive the rotating shaft to rotate. The rotating shaft drives the bevel gear II to rotate, which drives the bevel gear I to drive the connecting rod and the driving gear to rotate, thereby driving the driven gear and the atomizing nozzle to adjust the direction.

[0012] Preferably, in the above-mentioned dust removal device, a support frame II is installed inside the snap-fit ​​cover, and a receiving cavity is formed between the support frame II and the snap-fit ​​cover. A motor II is installed in the receiving cavity, and a bevel gear is connected to the end of the motor II. A rotating ring is also installed in the cavity formed by the end cover and the snap-fit ​​cover. A toothed ring II is installed on the edge of the rotating ring. The toothed ring II meshes with the bevel gear at the output end of the motor II. When the motor II works, it drives the bevel gear to rotate, which in turn drives the toothed ring II and the rotating ring to rotate. The rotating ring is connected to the outer shell through a transmission. The rotation of the rotating ring can drive the outer shell to move towards or away from the center of the air outlet.

[0013] Preferably, in the dust removal device described above, the rotating ring is provided with inclined guide grooves, and a guide post is connected to the side wall of the outer casing. The guide post extends into the guide groove, and the rotation of the rotating ring drives the outer casing to move towards or away from the center of the air outlet through the cooperation of the inclined guide groove and the guide post, thereby adjusting the size of the spray area of ​​the spray mechanism.

[0014] Preferably, in the above-mentioned dust removal device, the rotating shaft is composed of a rotating shaft and a sliding rod. The rotating shaft is rotatably installed in the outer shell and extends to the outside of the outer shell to connect with the bevel gear II. The sliding rod is slidably installed in the rotating shaft and extends to the outside of the outer shell to connect with the bevel gear III. When the outer shell moves towards or away from the center of the air outlet, the rotating shaft slides relative to the sliding rod to ensure that the bevel gear III is always in mesh with the gear ring II.

[0015] Preferably, in the above-mentioned dust removal device, the sliding rod surface is provided with a protrusion along its length direction, and a groove is provided on the inner wall of the rotating shaft along the length direction of the rotating shaft. The sliding rod is installed in the rotating shaft, and the protrusion is located in the groove. The rotation of the sliding rod can drive the rotating shaft to rotate through the cooperation of the protrusion and the groove. When the outer shell drives the rotating shaft to move relative to the sliding rod, the groove slides on the protrusion.

[0016] Preferably, in the above-mentioned dust removal device, the fog cannon barrel is equipped with an air-guiding mechanism. The air-guiding mechanism works to introduce airflow from the air inlet into the fog cannon barrel, and the airflow is discharged from the air outlet of the fog cannon barrel to carry out the water mist sprayed by the spraying mechanism to reduce dust in the environment.

[0017] Preferably, in the above-mentioned dust removal device, a carrier is installed inside the cannon barrel of the fog cannon, and a fixing plate is installed on the surface of the carrier. An airflow channel is formed between adjacent fixing plates. The air-guiding mechanism works to introduce airflow from the air inlet into the cannon barrel of the fog cannon so that the airflow enters the airflow channel and is then discharged through the air outlet to carry out the water mist sprayed by the spraying mechanism.

[0018] Preferably, in the above-mentioned dust removal device, a carrier is installed inside the cannon barrel of the fog cannon, and a spiral plate is installed on the surface of the carrier. A spiral flow channel is formed between adjacent spiral plates. The working of the air-guiding mechanism introduces airflow from the air inlet into the cannon barrel of the fog cannon so that the airflow enters the flow channel. Since the flow channel is spiral, when the airflow flows in the spiral flow channel and is discharged from the air outlet, it drives the water mist sprayed by the spraying mechanism to be sprayed out in a spiral shape.

[0019] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the rotation of the rotating shaft in the spray mechanism is driven by the cooperation of the motor and the gear ring. The rotation of the rotating shaft, through the cooperation of the bevel gears and the cooperation of the driving gear and the driven gear, drives the atomizing nozzle in the spray mechanism to rotate. This allows the atomizing nozzle to be arbitrarily adjusted at the angle towards the air outlet axis, so as to adjust the spray direction of the spray mechanism. This avoids the problem in the prior art that the spray mechanism cannot adjust the spray direction or cannot arbitrarily adjust the angle towards the air outlet axis. This ensures the spray effect of the spray mechanism, and at the same time, the water mist is blown out by the fog cannon to suppress dust-laden gas in the municipal construction environment, thus ensuring the dust suppression effect.

[0020] In this invention, the cooperation between the motor and the gear ring enables the spray unit, which consists of multiple spray mechanisms, to undergo a diameter reduction process. This allows the water mist sprayed by the spray mechanism to concentrate in a smaller area, facilitating the spraying of water mist from this smaller area by the fog cannon, thereby increasing the spray range of the fog cannon. In addition, the fog cannon in this invention is also equipped with a spiral flow channel. After the airflow passes through the flow channel, it moves in a spiral shape, thereby causing the water mist to be sprayed out in a spiral direction, making the water mist spray farther and further increasing the spray range of the fog cannon. This improves the atomization and dust suppression effect of the fog cannon and enhances the dust removal efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the dust removal device in this invention; Figure 2 This is a state diagram of the dust removal device in use according to the present invention; Figure 3 This is a schematic diagram of the spray unit in this invention; Figure 4 for Figure 3 The front view; Figure 5 This is a schematic diagram of the spray mechanism in this invention; Figure 6 This is a bottom view of the spraying mechanism in this invention; Figure 7 This is a cross-sectional view of the spraying mechanism in this invention; Figure 8 This is a state diagram of the spray unit in use in this invention; Figure 9 This is a schematic diagram of the structure of the fog cannon barrel in this invention; Figure 10 This is a cross-sectional view of the cannon barrel of the fog cannon in this invention; Figure 11 for Figure 10 Enlarged view of the structure at point A in the middle; Figure 12 This is a cross-sectional view of the fog cannon barrel and spray unit in this invention; Figure 13 for Figure 12 Enlarged view of the structure at point B in the middle; Figure 14 This is a schematic diagram showing the disassembled structure of the fog cannon barrel and spray unit in this invention; Figure 15 for Figure 14 Another angle diagram; Figure 16 This is a schematic diagram of the rotating ring in this invention; Figure 17 This is a partial structural diagram of the fog cannon barrel in this invention; Figure 18 This is a schematic diagram of another embodiment of the fog cannon barrel in this invention.

[0022] The correspondence between the reference numerals and component names in the attached drawings is as follows.

[0023] 100. Fog cannon; 200. Spraying mechanism; 101. Fog cannon barrel; 102. End cap; 103. Fastening cap; 104. Support mechanism; 105. Bearing component; 106. Air intake mechanism; 107. Gear ring I; 108. Gear ring II; 109. Rotating ring; 102a, Support frame I; 102b, Motor I; 103a, Support frame II; 103b, Motor II; 104a, Angle adjustment mechanism; 105a, Fixing plate; 105b, Spiral plate; 106a, Protective plate; 109a, Guide groove; 201. Outer shell; 202. Support frame; 203. Atomizing nozzle; 204. Rotating shaft; 205. Sliding rod; 200a, connecting pipe; 200b, water supply pipe; 201a, guide post; 202a, bevel gear I; 202b, driving gear; 203a, driven gear; 204a, bevel gear II; 205a, bevel gear III. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] like Figure 1 as well as Figure 2 As shown, this is a structural schematic diagram of the dust removal device in this invention. The dust removal device in this invention is based on a fog cannon 100. The fog cannon 100 sprays water to reduce dust generated during municipal construction projects, thereby achieving the purpose of dust removal. The fog cannon 100 in this invention includes a fog cannon barrel 101 and a support mechanism 104 for mounting the fog cannon barrel 101. The top of the support mechanism 104 is connected to the fog cannon barrel 101 through an angle adjustment mechanism 104a. The angle of the fog cannon barrel 101 is adjusted by the angle adjustment mechanism 104a so that the angle of the fog cannon 100 can be adjusted according to the actual environment.

[0027] like Figure 1 As shown, in this invention, one end of the fog cannon barrel 101 is an air inlet, and the other end is an air outlet. The fog cannon 100 operates by drawing air in from the air inlet and discharging it from the air outlet. Additionally, as... Figure 1 As shown, the air outlet end of the fog cannon barrel 101 is connected to an end cap 102 and a fastening cap 103. The end cap 102 and the fastening cap 103 are connected to form a cavity, and a spray unit is installed in this cavity, such as... Figure 3 As shown, the spray unit is composed of multiple spray mechanisms 200, the ends of which extend into the inner cavity of the air outlet of the fog cannon 100; as Figure 2 as well as Figure 4 As shown, in this invention, the spray mechanism 200 generates water mist in the inner cavity of the air outlet. The fog cannon 100 operates by introducing airflow from the air inlet and discharging it from the air outlet, thereby carrying out the generated water mist. The water mist adsorbs dust particles in the gas in the environment, thereby achieving dust reduction.

[0028] like Figure 5 As shown, the spraying mechanism 200 of the present invention includes an outer shell 201, a support frame 202 fixedly connected to the bottom of the outer shell 201, the outer shell 201 being installed in the cavity formed by the end cap 102 and the fastening cap 103, and the support frame 202 at the end of the outer shell 201 extending into the inner cavity of the air outlet end of the fog cannon barrel 101. Figure 5 as well as Figure 6 As shown, an atomizing nozzle 203 is rotatably connected between the support frames 202 in this invention. The atomizing nozzle 203 can rotate relative to the support frames 202. A connecting rod is also rotatably connected between the support frames 202. A bevel gear I 202a is installed on the connecting rod. The end of the connecting rod extends to the outside of the support frame 202 and is connected to a driving gear 202b. In addition, a driven gear 203a is installed at the end of the atomizing nozzle 203. The driven gear 203a meshes with the driving gear 202b. Therefore, when the bevel gear I 202a drives the connecting rod to rotate, thereby driving the driving gear 202b to rotate, the driving gear 202b drives the driven gear 203a to rotate, thereby driving the atomizing nozzle 203a to rotate, thus adjusting the angle and direction of the water mist sprayed by the atomizing nozzle 203.

[0029] like Figure 3 As shown, the spray unit in this invention also includes a connecting pipe 200a connected between each spray mechanism 200. The connecting pipe 200a is connected between each spray mechanism 200 and rotatably connected to the atomizing nozzle 203 in the spray mechanism 200. In addition, the spray unit also includes a water supply pipe 200b, which is connected to the connecting pipe 200a. Therefore, water is input into the water supply pipe 200b through an external water supply unit and then enters the connecting pipe 200a. The water flows through the connecting pipe 200a into the atomizing nozzle 203 of the spray mechanism 200 and is atomized and sprayed out. Then, the fog cannon 100 works by introducing airflow from the air inlet and discharging it from the air outlet. The airflow carries the atomized water mist out from the air outlet into the dust-laden gas environment. The water mist adsorbs dust particles, thereby achieving the purpose of dust suppression.

[0030] like Figure 7 As shown, a rotating shaft is installed in the outer shell 201 of the present invention. The rotating shaft is composed of a rotating shaft 204 and a sliding rod 205. The bottom of the rotating shaft 204 extends to the outside of the outer shell 201 and is connected to a bevel gear II 204a. The bevel gear II 204a meshes with the bevel gear I 202a. Therefore, when the rotating shaft rotates and drives the bevel gear II 204a to rotate, the bevel gear I 202a is driven to rotate through the bevel gear II 204a, which in turn drives the connecting rod and the driving gear 202b to rotate, thereby driving the driven gear 203a and the atomizing nozzle 203 to rotate, thereby adjusting the spray direction and angle of the atomizing nozzle 203.

[0031] In this invention, the atomizing nozzle 203 is driven to rotate by rotating the rotating shaft in the outer casing 201 and by the meshing relationship between bevel gear II 204a and bevel gear I 202a, and the meshing relationship between driven gear 203a and driving gear 202b. Therefore, the angle between the atomizing nozzle 203 and the axis of the air outlet can be adjusted arbitrarily, realizing multi-angle adjustment of the atomizing nozzle 203. The spray angle of the atomizing nozzle 203 towards the axis of the air outlet can be adjusted as needed, thereby improving the dust suppression effect.

[0032] like Figure 8 As shown, after the angle of the atomizing nozzle 203 is adjusted, the atomizing nozzle 203 sprays water mist, and then the airflow generated by the fog cannon 100 carries the water mist out, thereby achieving dust suppression in the construction environment.

[0033] like Figures 9-11 As shown, the end cap 102 of the present invention is internally connected to a support frame I 102a, and a receiving cavity is formed between the support frame I 102a and the end cap 102, such as... Figures 12-14 As shown, a motor Ⅰ102b is installed inside the cavity of the present invention, and a bevel gear is installed at the end of the motor 102b. Additionally, as... Figure 13 as well as Figure 14 As shown, a gear ring I 107 is rotatably mounted in the cavity formed between the end cap 102 and the fastening cap 103. One side of the gear ring I 107 meshes with a bevel gear at the end of the motor I 102b, and the other side of the gear ring I 107 is connected to the spray mechanism 200 in the cavity. Specifically, the sliding rod 205 in the spray mechanism 200 of this invention extends to the outside of the outer shell 201, and the sliding rod 205 is slidably connected to the rotating shaft 204. A bevel gear III 205a is mounted on the top of the sliding rod 205 extending to the outside of the outer shell 201. The bevel gear III 205a is connected to... The meshing of the gear ring I 107 means that, in this invention, when the motor I 102b drives the bevel gear to rotate, the bevel gear drives the gear ring I 107 to rotate, the rotation of the gear ring I 107 drives the bevel gear III 205a to rotate, which in turn drives the sliding rod 205 and the rotating shaft 204 to rotate, which in turn drives the bevel gear II 204a to rotate. Furthermore, through the meshing relationship between the bevel gear II 204a and the bevel gear I 202a, and the meshing relationship between the driven gear 203a and the driving gear 202b, the atomizing nozzle 203 is driven to rotate, which is used to adjust the spray direction of the atomizing nozzle 203.

[0034] In addition, such as Figure 10 as well as Figure 17As shown, the fog cannon barrel 101 of the present invention has a support member 105 installed inside, a fixing plate 105a installed on the surface of the support member 105, a flow channel is formed between the fixing plates 105a, and an air-guiding mechanism 106 is installed at the end of the support member 105 near the air inlet. The air-guiding mechanism 106 works to introduce airflow into the fog cannon barrel 101. After the airflow passes through the flow channel, it enters the air outlet, thereby carrying out the water mist sprayed by the spraying mechanism 200 for dust suppression.

[0035] In addition, such as Figure 17 As shown, the air inlet end of the fog cannon barrel 101 in this invention is equipped with a protective plate 106a, and a filter screen is installed on the protective plate 106a. On the one hand, the protective plate 106a avoids the problem of the exposed air-driving mechanism 106 having installation hazards. On the other hand, the filter screen on its surface is used to filter the airflow when the air is drawn to ensure that clean gas enters the fog cannon barrel 101.

[0036] In this invention, the motor I102b in the support frame I102a drives the bevel gear to rotate, which in turn drives the gear ring I107 to rotate, thereby driving the bevel gear III205a to rotate, which in turn drives the sliding rod 205 and the rotating shaft 204 to rotate, which in turn drives the bevel gear II204a to rotate. Through the meshing relationship between the bevel gear II204a and the bevel gear I202a, and the meshing relationship between the driven gear 203a and the driving gear 202b, the atomizing nozzle 203 is driven to rotate. This allows the spray angle of the atomizing nozzle 203 towards the air outlet axis to be adjusted arbitrarily. The spray angle can be adjusted according to actual needs, ensuring the dust suppression effect while avoiding the problem of existing fog cannons 100 being unable to adjust the spray angle or being unable to adjust the spray angle arbitrarily, thus ensuring the effectiveness of the fog cannon 100.

[0037] In addition, in order to ensure that the dust removal device in this invention has a better dust reduction effect, the fog cannon 100 in this invention also improves the dust reduction effect by expanding the spray range. In order to facilitate the explanation of the specific way in which the fog cannon 100 expands the spray range in this invention, the present invention provides the following embodiments to illustrate the technical solution of the present invention.

[0038] Example 1 like Figures 12-16As shown, in this embodiment, a support frame II 103a is also installed in the fastening cover 103 of the fog cannon 100. A receiving cavity is also formed between the support frame II 103a and the fastening cover 103. A motor II 103b is installed in the receiving cavity. The output end of the motor II 103b is connected to a bevel gear. In this embodiment, a rotating ring 109 is also rotatably installed in the cavity formed by the connection of the end cover 102 and the fastening cover 103. A toothed ring II 108 is connected to the edge of the rotating ring 109. The toothed ring II 108 meshes with the bevel gear at the end of the motor II 103b. Therefore, when the motor II 103b works, it can drive the bevel gear to rotate, thereby driving the toothed ring II 108 to rotate in the cavity. In addition, as Figure 15 As shown in Figure 16, the rotating ring 109 in this embodiment has inclined guide grooves 109a distributed on it, and as shown in Figure 16... Figure 7 As shown, in this embodiment, a guide post 201a is connected to the side wall of the outer housing 201 of the spray mechanism 200, and the guide post 201a extends into the guide groove 109a.

[0039] Therefore, when motor II 103b drives the bevel gear to rotate, the bevel gear drives the gear ring II 108 to rotate the rotating ring 109. Since the guide post 201a is located in the guide groove 109a of the rotating ring 109, the rotation of the rotating ring 109 can drive the guide post 201a to move the outer shell 201 towards the center of the air outlet or away from the center of the air outlet, thereby driving the atomizing nozzle 203 to move towards the center of the air outlet or away from the center of the air outlet.

[0040] In this embodiment, when the atomizing nozzle 203 moves towards the center of the air outlet, that is, moves in the direction of narrowing, the atomizing nozzle 203 sprays within a smaller range. When the air intake mechanism 106 introduces airflow and discharges it from the air outlet, since the spray is concentrated in a smaller range, the airflow can carry the spray a longer distance, that is, increase the spray range of the fog cannon 100, so that the water mist can be sprayed further, and perform real-time dust suppression of dust-laden gas in the environment.

[0041] Additionally, it should be noted that, in order to prevent the outer casing 201 from moving in the direction of diameter reduction and thus causing the bevel gear Ⅲ 205a to disengage from the gear ring Ⅰ 107, as follows: Figure 13As shown, the sliding rod 205 in this invention is rotatably mounted on the support frame I 102a, and the sliding rod 205 can only rotate relative to the support frame I 102a, but cannot move relative to the support frame I 102a. Furthermore, the sliding rod 205 extends into the rotating shaft 204 and is slidably connected to the rotating shaft 204. Therefore, when the outer shell 201 moves in the direction of diameter reduction due to the cooperation between the guide groove 109a and the guide post 201a, the sliding rod 205 does not move. The outer shell 201 drives the rotating shaft 204 to move along the length direction of the sliding rod 205, thus realizing the movement of the outer shell 201 in the direction of diameter reduction, thereby driving the atomizing nozzle 203 to move in the direction of diameter reduction.

[0042] In this embodiment, a protrusion is installed on the surface of the sliding rod 205 along its length direction, and a groove is provided on the inner wall of the rotating shaft 204 along the length direction of the rotating shaft 204. After the sliding rod 205 is installed in the rotating shaft 204, the protrusion is located in the groove. Therefore, the rotation of the sliding rod 205 can drive the rotating shaft 204 to rotate through the cooperation of the protrusion and the groove. When the outer shell 201 drives the rotating shaft 204 to move relative to the sliding rod 205, the groove slides on the protrusion, which prevents the bevel gear Ⅲ205a at the end of the sliding rod 205 from disengaging from the gear ring Ⅰ107.

[0043] In this embodiment, the motor II 103b drives the bevel gear to rotate, which in turn drives the gear ring II 108 and the rotating ring 109 to rotate. The guide groove 109a and the guide column 201a work together to drive the spray mechanism 200 to move in the direction of narrowing. Therefore, the water mist sprayed by the atomizing nozzle 203 can be concentrated in a smaller area. When the airflow passes through this area, it can carry the water mist a longer distance, thereby increasing the range of the fog cannon 100 and making the water mist spray farther, so as to facilitate the dust suppression treatment of dust-laden gas in the environment at a greater distance.

[0044] To further improve the spray range of the fog cannon 100, the present invention also provides the following embodiments to increase the spray distance of the fog cannon 100 and further ensure the dust suppression effect.

[0045] Example 2 like Figure 18As shown, this is a partial cross-sectional view of the cannon barrel 101 of the fog cannon in this invention. In this embodiment, a support member 105 is installed in the cannon barrel 101, and a spiral plate 105b is installed on the surface of the support member 105. After multiple spiral plates 105b are installed on the surface of the support member 105, a spiral flow channel is formed. Therefore, when the air-guiding mechanism 106 introduces airflow into the cannon barrel 101, the airflow enters the spiral flow channel. Thus, the airflow is discharged at the air outlet of the cannon barrel 101 and carries out water mist in a spiral airflow. The spiral airflow allows the water mist to be sprayed further, thereby increasing the spray range of the fog cannon 100. This enables the fog cannon 100 to perform real-time dust suppression operations on dusty gases in the environment at a greater distance, ensuring the dust suppression effect.

[0046] In this invention, the motor I 102b drives the bevel gear to rotate, which in turn drives the gear ring I 107 to rotate, thereby driving the bevel gear III 205a in the spray mechanism 200 to rotate. This achieves the rotation of the sliding rod 205 and the rotating shaft 204, which in turn drives the bevel gear II 204a to rotate. The bevel gear II 204a meshes with the bevel gear I 202a, which in turn drives the bevel gear I 202a to rotate, thereby driving the connecting rod to rotate. Through the meshing relationship between the driving gear 202b and the driven gear 203a, the atomizing nozzle 203 is driven to rotate. Therefore, the spray direction of the atomizing nozzle 203 can be adjusted as needed, avoiding the problem of existing fog cannons 100 having difficulty adjusting the spray angle or being unable to arbitrarily adjust the spray angle, thus ensuring the effectiveness of the fog cannon 100. In addition, the motor in this invention... The operation of II103b drives the bevel gear to rotate, which in turn drives the gear ring II108 and the rotating ring 109 to rotate. Through the cooperation of the guide groove 109a and the guide column 201a, the spray mechanism 200 can move in the direction of the narrowing diameter, so that the spray mechanism 200 can concentrate the spray in a smaller area. When the airflow passes through this smaller area, it can carry the water mist further, thereby increasing the spray range of the fog cannon 100 and ensuring the dust suppression effect of the fog cannon 100. In addition, the fog cannon barrel 101 of the present invention is also provided with a spiral flow channel. When the airflow passes through the spiral flow channel, it carries out water mist, causing the water mist to also rotate in a spiral, thereby making the water mist travel a longer distance, increasing the spray range of the fog cannon 100 and further ensuring the dust suppression effect of the fog cannon 100.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust removal device for municipal environmental protection projects, which achieves dust suppression by spraying mist from a fog cannon (100), the fog cannon (100) including a fog cannon barrel (101), one end of the fog cannon barrel (101) being an air inlet and the other end being an air outlet, the air outlet being equipped with an end cap (102) and a snap-fit ​​cap (103), the end cap (102) and the snap-fit ​​cap (103) being snap-fitted together to form a cavity, the cavity being equipped with a spray unit, the spray unit being composed of multiple spray mechanisms (200), the spray mechanism (200) spraying at the air outlet and the fog cannon (100) working to generate airflow that is discharged from the air outlet to carry the spray out to suppress dust-laden gas in the municipal construction environment, characterized in that, The spray mechanism (200) includes an outer shell (201) and a rotating shaft installed inside the outer shell (201). The outer shell (201) extends into the air outlet and is connected to a support frame (202). An atomizing nozzle (203) is rotatably mounted on the support frame (202). The atomizing nozzle (203) is connected through a connecting pipe (200a). The connecting pipe (200a) and the atomizing nozzle (203) are rotatably connected. A water supply pipe (200b) is connected to the connecting pipe (200a). The water supply pipe (200b) supplies water to the atomizing nozzle (203) through the connecting pipe (200a). The water is atomized and sprayed out after passing through the atomizing nozzle (203). The atomizing nozzle (203) is connected to the rotating shaft in the outer shell (201) for transmission. The rotation of the rotating shaft can drive the atomizing nozzle (203) to spray water mist at any angle towards the axial direction of the air outlet.

2. The dust removal device for municipal environmental protection projects according to claim 1, characterized in that, The rotating shaft extends to the outside of the outer shell (201) and enters the support frame (202), where it is connected to bevel gear II (204a). A connecting rod is rotatably mounted on the support frame (202), and bevel gear I (202a) is connected to the connecting rod. Bevel gear I (202a) meshes with bevel gear II (204a). A driven gear (203a) is connected to the atomizing nozzle (203). A driving gear (202b) is connected to the end of the connecting rod. The driving gear (202b) meshes with the driven gear (203a). When the rotating shaft drives bevel gear II (204a) to rotate, it can drive bevel gear I (202a) to drive the connecting rod and the driving gear (202b) to rotate, which in turn drives the driven gear (203a) to rotate, thereby adjusting the angle between the atomizing nozzle (203) and the air outlet axis.

3. The dust removal device for municipal environmental protection projects according to claim 2, characterized in that, The end cap (102) is fitted with a support frame I (102a), forming a receiving cavity between the support frame I (102a) and the end cap (102). A motor I (102b) is installed in the receiving cavity, and a bevel gear is connected to the end of the motor I (102b). A gear ring I (107) is also installed in the cavity formed by the fastening connection between the end cap (102) and the fastening cover (103). One side of the gear ring I (107) meshes with the bevel gear, and the end of the rotating shaft in the spray mechanism (200) extends to the outside of the outer shell (201). A bevel gear Ⅲ (205a) is connected, and the bevel gear Ⅲ (205a) meshes with the other side of the gear ring Ⅰ (107). When the motor Ⅰ (102b) works to drive the bevel gear to rotate, the bevel gear drives the gear ring Ⅰ (107) to rotate, which in turn drives the bevel gear Ⅲ (205a) to drive the rotating shaft to rotate. The rotating shaft drives the bevel gear Ⅱ (204a) to rotate, which drives the bevel gear Ⅰ (202a) to drive the connecting rod and the driving gear (202b) to rotate, which in turn drives the driven gear (203a) and the atomizing nozzle (203) to adjust the direction.

4. The dust removal device for municipal environmental protection projects according to any one of claims 1-3, characterized in that, The fastening cover (103) is equipped with a support frame II (103a) inside. A cavity is formed between the support frame II (103a) and the fastening cover (103). A motor II (103b) is installed in the cavity. A bevel gear is connected to the end of the motor II (103b). A rotating ring (109) is also installed in the cavity formed by the end cover (102) and the fastening cover (103). A toothed ring II (108) is installed on the edge of the rotating ring (109). The toothed ring II (108) meshes with the bevel gear at the output end of the motor II (103b). The operation of the motor II (103b) drives the bevel gear to rotate, thereby driving the toothed ring II (108) and the rotating ring (109) to rotate. The rotating ring (109) is connected to the outer shell (201) through transmission. The rotation of the rotating ring (109) can drive the outer shell (201) to move towards or away from the center of the air outlet.

5. The dust removal device for municipal environmental protection projects according to claim 4, characterized in that, The rotating ring (109) is provided with inclined guide grooves (109a), and a guide post (201a) is connected to the side wall of the outer shell (201). The guide post (201a) extends into the guide groove (109a). The rotating ring (109) rotates and drives the outer shell (201) to move towards or away from the center of the air outlet through the cooperation of the inclined guide groove (109a) and the guide post (201a), so as to adjust the size of the spray area of ​​the spray mechanism (200).

6. The dust removal device for municipal environmental protection projects according to claim 1, 2, 3, or 5, characterized in that, The rotating shaft is composed of a rotating shaft (204) and a sliding rod (205). The rotating shaft (204) is rotatably installed in the outer shell (201) and extends to the outside of the outer shell (201) to connect with the bevel gear II (204a). The sliding rod (205) is slidably installed in the rotating shaft (204) and extends to the outside of the outer shell (201) to connect with the bevel gear III (205a). When the outer shell (201) moves towards or away from the center of the air outlet, the rotating shaft (204) slides relative to the sliding rod (205) to ensure that the bevel gear III (205a) is always in mesh with the gear ring II (108).

7. The dust removal device for municipal environmental protection projects according to claim 6, characterized in that, The sliding rod (205) has a raised strip installed on its surface along its length direction, and a groove is provided on the inner wall of the rotating shaft (204) along the length direction of the rotating shaft (204). The sliding rod (205) is installed in the rotating shaft (204), and the raised strip is located in the groove. The rotation of the sliding rod (205) can drive the rotating shaft (204) to rotate through the cooperation of the raised strip and the groove. When the outer shell (201) drives the rotating shaft (204) to move relative to the sliding rod (205), the groove slides on the raised strip.

8. The dust removal device for municipal environmental protection projects according to claim 1, characterized in that, The fog cannon barrel (101) is equipped with an air-guiding mechanism (106). The air-guiding mechanism (106) works to introduce airflow from the air inlet into the fog cannon barrel (101), and the airflow is discharged from the air outlet of the fog cannon barrel (101) to carry out the water mist sprayed by the spraying mechanism (200) to reduce dust in the environment.

9. The dust removal device for municipal environmental protection projects according to claim 8, characterized in that, The fog cannon barrel (101) is equipped with a support member (105), and a fixing plate (105a) is installed on the surface of the support member (105). A flow channel is formed between adjacent fixing plates (105a). The air-driving mechanism (106) works to introduce airflow from the air inlet end into the fog cannon barrel (101) so that the airflow enters the flow channel and is then discharged through the air outlet to carry out the water mist sprayed by the spraying mechanism (200).

10. The dust removal device for municipal environmental protection projects according to claim 8, characterized in that, The fog cannon barrel (101) is equipped with a support member (105), and a spiral plate (205b) is installed on the surface of the support member (105). A spiral flow channel is formed between adjacent spiral plates (105b). The air-driving mechanism (106) works to introduce airflow from the air inlet end into the fog cannon barrel (101) so that the airflow enters the flow channel. Since the flow channel is spiral, when the airflow flows in the spiral flow channel and is discharged from the air outlet, it drives the water mist sprayed by the spraying mechanism (200) to be sprayed out in a spiral shape.

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