Dust control device for tunnel construction and use method thereof

Abstract

The present invention discloses a dust control device for tunnel construction and a method of using the device, comprising a first motor, wherein both ends of a driving shaft of the first motor are equipped with a slide bracket, and both slide brackets are movably sleeved with a power box, and the power box is rotatably connected to a support cylinder on a side away from the first motor, and the support cylinder is sleeved on the slide bracket with a gap and is coaxial, and an end of the support cylinder away from the first motor is fixedly sleeved with a mounting ring frame, one of the mounting ring frames is hinged with a plurality of mounting slot frames, and a spray tube is installed in the mounting slot frame, and an absorption slot frame is hinged on the other mounting ring frame, and an absorption tube is installed on one side of the absorption slot frame, and a working box is provided below the first motor, and the working box is divided into a water supply chamber and a dust removal chamber by a first partition plate, and an electric trolley is installed at the bottom of the working box, which can perform all the work of cleaning, atomizing dust reduction, and exhausting dust removal in various places in the tunnel at one time and completely and fully, thereby achieving optimal working efficiency and eliminating working dead angles.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a dust control device for tunnel construction. Background Art

[0002] During tunnel road construction, drilling, blasting and mechanical operations will generate a large amount of dust, which poses a serious threat to the health of construction workers. Therefore, ventilation and dust removal equipment is required during tunnel road construction.

[0003] The application document with publication number CN117967383A discloses a ventilation and dust removal device for tunnel road construction. A dust collection and processing mechanism is provided on the top of the vehicle body. The dust collection and processing mechanism includes a dust collection unit and a pre-processing unit. A disturbance dust cleaning mechanism is provided on the inner wall of the first dust inlet pipe.

[0004] Based on the above patents and prior art, the following questions are raised:

[0005] Problem 1: Since atomizing nozzles are often fixedly mounted on fixed brackets, there are dead corners where the water mist cannot reach. Dust cannot be reduced in the air in these dead corners, which affects the dust removal effect and makes the dust control effect less than optimal.

[0006] Problem 2: Because the suction end is often fixed somewhere on the vehicle body, there are dead corners where dust cannot be collected. The air in these dead corners cannot be dusted, which affects the dust removal effect and makes the dust control effect less than optimal.

[0007] Question 3: Because the atomization and dust removal components are fixed during installation, they are affected by the size of the tunnel when working in tunnels of different sizes, resulting in poor dust control efficiency, which in turn prolongs the dust removal time and affects the overall construction period. Summary of the Invention

[0008] The purpose of the present invention is to address the above-mentioned problems and shortcomings and provide a dust control device for tunnel construction and a method of use thereof, thereby improving overall work efficiency.

[0009] The present invention solves at least one of the following technical problems:

[0010] (1) There are dead corners that the water mist cannot reach, and the air in the dead corners cannot be dusted, which affects the dust removal effect and causes the dust control effect to be unable to achieve the best result;

[0011] (2) There are dead corners that cannot be absorbed during vacuuming, and the air in the dead corners cannot be dusted, which affects the dust removal effect and causes the dust control effect to be unable to achieve the best result;

[0012] (3) When working in tunnels of different sizes, the dust control efficiency is poor due to the influence of the tunnel size, which prolongs the dust removal time and affects the overall construction period.

[0013] The objectives of the present invention can be achieved through the following technical solutions: A dust control device for tunnel construction, comprising a first motor, slide brackets are installed at both ends of the driving shaft of the first motor, and power boxes are movably sleeved on the two slide brackets. The power box is rotatably connected to a support tube on the side away from the first motor, and the support tube is sleeved on the slide bracket with a gap and is coaxial. The end of the support tube away from the first motor is fixedly sleeved with a mounting ring frame, one of the mounting ring frames is hinged with several mounting slot frames, and a spray tube is installed in the mounting slot frame, and the other mounting ring frame is hinged with an absorption slot frame, and an absorption tube is installed on one side of the absorption slot frame, and a working box is provided under the first motor, and the working box is divided into a water supply chamber and a dust removal chamber by a first partition plate, and an electric trolley is installed at the bottom of the working box.

[0014] As a further solution of the invention, a connecting rotating cylinder is buried inside the support cylinder at one end near the power box, and the connecting rotating cylinder has a hollow structure. A hollow annular cylinder is embedded and installed on the inner wall of the power box, and the hollow annular cylinder is movably sleeved on the slide bracket, and the hollow annular cylinder and the connecting rotating cylinder are rotatably connected and connected to each other. Each spray pipe is connected to the corresponding hollow annular cylinder through a first hose, and each absorption pipe is connected to the corresponding connecting rotating cylinder through a second hose. The water supply chamber and the dust removal chamber of the working box are connected to the corresponding hollow annular cylinder through a water supply hose and an air extraction hose respectively. A transmission chamber is opened in the power box and at the outer periphery of the support cylinder. A second motor is embedded and installed on the inner wall of the power box and below the hollow annular cylinder. A driving sprocket is installed on the drive shaft of the second motor, and a driven sprocket is sleeved on the support cylinder and located in the transmission chamber. The driven sprocket and the driving sprocket are transmitted through a transmission chain.

[0015] As a further solution of the invention, the slide bracket is installed with a transmission screw and a transmission slider. One end of the transmission screw is fixedly connected to the rotating shaft of the first motor. The transmission screw passes through the transmission slider and is threadedly sleeved with it. Slide grooves are provided on both sides of the slide bracket. Both ends of the transmission slider pass through the slide grooves and are fixedly connected to the side walls of the corresponding hollow ring cylinder. The end of the slide bracket away from the first motor is rotatably connected to the transmission ring frame. The two transmission ring frames correspond to the mounting groove frame and the absorption groove frame respectively and are hinged through diagonal support rods.

[0016] As a further solution of the invention, the first motor is installed in the middle of the upper surface of the working box through a support frame, support slides are installed on both sides of the support frame, and the power box is slidably connected to the support slides.

[0017] As a further solution of the invention, the spray pipe is connected to a plurality of atomizing nozzles, and the absorption pipe is connected to the absorption tank frame through a plurality of converging air pipes. The atomizing nozzles on the spray pipe and the converging air pipes on the absorption pipe are distributed with gradually increasing spacing from the end away from the mounting ring frame to the end close to it.

[0018] As a further solution of the invention, a second partition plate is installed in the working box and on one side close to the absorption tank frame. The second partition plate and the inner wall of the working box are fixedly connected with a support filter cartridge, and the support filter cartridge passes through the corresponding second partition plate. The outer periphery of the support filter cartridge is sealed and rotatably connected to the filter ring frame. A filter mesh cartridge is installed between the two filter ring frames. The support filter cartridge on the second partition plate is connected to a junction cover, and one side of the junction cover is connected in sequence to a cyclone separator, a bag dust collector and an exhaust pump.

[0019] As a further solution of the invention, the cyclone separator is connected to a dust collecting drum below, an exhaust grille is embedded in the side wall of the working box, a water storage barrel is provided in the water supply cavity of the working box, a water supply pump is installed on one side of the water storage barrel, and the water supply pump is connected to the water supply hose.

[0020] As a further scheme of the invention, a second gear and a cleaning brush roller are provided on one side of the filter ring frame, and the second gear and the cleaning brush roller are both rotatably connected to the working box. One side of the second gear is meshed with the filter ring frame, and the other side of the second gear is provided with a first gear and meshed with it. One side of the cleaning brush roller is provided with two mutually meshing fourth gears, and one side of the fourth gear is provided with a third gear. The cleaning brush roller and the third gear are both driven by the corresponding fourth gear through a belt ring, and a third motor is provided between the third gear and the first gear. Both ends of the drive shaft of the third motor and the third gear and the first gear are driven by mutually meshing bevel gear sets.

[0021] As a further solution of the invention, a dust collecting box is spliced ​​and installed at the bottom of the working box and below the filter cylinder, a shaving comb is installed in the middle of the dust collecting box, and a steering pipe head is installed at the end of the exhaust hose.

[0022] A method for using a dust control device for tunnel construction, comprising the following steps:

[0023] Step 1: Each mounting trough frame and absorption trough frame is expanded into an umbrella shape and moved to the end of the slide bracket away from the first motor, thereby extending two umbrella-shaped structures at both ends of the working box. Subsequently, the second motor drives the support cylinder to rotate through the driven sprocket, the driving sprocket and the transmission chain, thereby rotating the spray pipe or absorption trough frame in the umbrella shape, respectively, and driving the mounting ring frame and each spray pipe distributed in the umbrella shape and each absorption trough frame in the umbrella shape to rotate at a uniform speed;

[0024] Step 2: Use the electric trolley to move each component forward at a constant speed along the axial direction of the tunnel, so as to complete and fully clean all parts of the tunnel at one time, including atomizing dust reduction and exhaust dust removal.

[0025] Step 3: When supplying water, water is delivered to the corresponding hollow annular cylinder and connecting rotating cylinder through the water supply hose, and then evenly delivered to each spray pipe through each first hose. When removing dust, the total suction force is provided by the exhaust hose, and the cleaned dust is converged into the corresponding connecting rotating cylinder and hollow annular cylinder through the second hose. The number of spray pipes or absorption trough racks can be set according to actual needs. When only two are set, the rotation can be flexibly paused when needed to avoid collision with other equipment.

[0026] Step 4: When the work is finished, the installation trough frame and the absorption trough frame are restored to the retracted state, and the size matches the working box.

[0027] Beneficial effects of the present invention:

[0028] (1) During operation, the installation troughs and absorption troughs are spread out in an umbrella-shaped manner and moved to the end of the slide bracket away from the first motor, thereby extending two umbrella-shaped structures at both ends of the working box. Subsequently, the support cylinder is rotated to drive the installation ring frame and the umbrella-shaped spray pipes and the umbrella-shaped absorption troughs to rotate at a uniform speed, thereby forming a circular area on the cross section of the tunnel. The electric trolley moves the various components forward at a uniform speed along the axial direction of the tunnel, thereby performing all the work of cleaning, atomizing dust reduction, and exhausting dust removal in all areas of the tunnel in one go, achieving the best work efficiency, and without any dead angles in the work, so that all areas of the tunnel can be swept;

[0029] (2) The circular water mist area is used to make the water mist concentration evenly distributed in all parts of the tunnel cross section, and the absorption trough rack fully sweeps all parts of the cross section, and guides the airflow and dust in each part to be sucked into the absorption pipe and finally converged into the dust removal chamber in the working box for dust removal. When the spray pipe or the absorption trough rack is rotated, it is driven by the second motor and driven by the driven sprocket, the driving sprocket and the transmission chain to drive the support cylinder to rotate, thereby rotating the umbrella-shaped spray pipe or the absorption trough rack respectively. Atomization and dust removal can be performed simultaneously, or each step can be performed separately. The number of spray pipes or absorption trough racks can be set according to actual needs to adapt to different site requirements.

[0030] (3) During operation, the transmission screw is rotated by the first motor, pushing the transmission slider and the hollow ring cylinder to move along the axial direction of the slide bracket, and the diagonal support rod is rotated by the reaction force, thereby extending or retracting in an umbrella shape, so that the spray tube and the absorption tank frame are both opened or retracted in an umbrella-shaped structure, and when opened, the power box is just moved to the top of the end of the working box to prevent the working box from interfering with the rotation, and when retracted, it can be tightly retracted in the rectangular space, so that it can be extended and carried out comprehensive cleaning over a large area, and can be retracted and stored in a small space. The first motor can be set as one, thereby driving two transmission screws at the same time, or it can be set as two, driving two transmission screws separately, to carry out more diverse and comprehensive dust control work. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0032] Figure 1 It is a side view of the overall structure of the present invention when it is not unfolded;

[0033] Figure 2 It is a side view of the overall structure of the present invention when it is unfolded;

[0034] Figure 3 A side view of the partial structure of the spray tube of the present invention when it is unfolded;

[0035] Figure 4 This is a side view of the internal structure of the absorption tank frame of the present invention when it is unfolded;

[0036] Figure 5 Schematic diagram of the internal structure of the working box of the present invention;

[0037] Figure 6 This is a side view of the overall structure of the filter ring frame of the present invention;

[0038] In the figure: 101, first motor; 102, slide bracket; 103, power box; 104, support cylinder; 105, mounting ring frame; 106, mounting trough frame; 107, spray pipe; 108, absorption trough frame; 109, absorption pipe; 110, electric trolley; 111, working box; 112, first partition plate; 201, connecting drum; 202, hollow ring cylinder; 203, first hose; 204, second hose; 205, water supply hose; 206, exhaust hose; 207, transmission screw; 208, transmission slider; 209, transmission chamber; 210, driving sprocket; 211, driven sprocket; 212, transmission chain; 213, second motor; 214, transmission ring frame ; 215, diagonal support rod; 216, converging air pipe; 217, support frame; 218, atomizing nozzle; 219, supporting slide; 301, second partition plate; 302, supporting filter cartridge; 303, filter ring frame; 304, filter mesh cartridge; 305, converging cover; 306, cyclone separator; 307, dust collection cylinder; 308, bag filter; 309, exhaust pump; 310, exhaust grille; 311, water storage tank; 312, water supply pump; 401, third motor; 402, first gear; 403, second gear; 404, third gear; 405, cleaning brush roller; 406, fourth gear; 407, dust collection box; 408, shaving comb; 409, steering pipe head. DETAILED DESCRIPTION

[0039] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0040] See also Figure 1-6 As shown: a dust control device for tunnel construction, comprising a first motor 101, with slide brackets 102 installed at both ends of the driving shaft of the first motor 101, and a power box 103 movably sleeved on the two slide brackets 102, and the power box 103 is rotatably connected to a support cylinder 104 on the side away from the first motor 101, and the support cylinder 104 is sleeved on the slide bracket 102 with a gap and coaxially, and a mounting ring frame 105 is fixedly sleeved on the end of the support cylinder 104 away from the first motor 101, one of the mounting ring frames 105 is hinged with a plurality of mounting slot frames 106, and a spray tube 107 is installed in the mounting slot frame 106, and an absorption slot frame 108 is hinged on the other mounting ring frame 105, and an absorption tube 109 is installed on one side of the absorption slot frame 108, and a working box 111 is provided below the first motor 101, and the working box 111 is divided into a water supply chamber and a dust removal chamber by a first partition plate 112, and an electric trolley 110 is installed at the bottom of the working box 111;

[0041] When the present embodiment is working, the mounting trough frames 106 and the absorption trough frames 108 are spread out in an umbrella-shaped state and moved to the end of the slide bracket 102 away from the first motor 101, thereby extending two umbrella-shaped structures at both ends of the working box 111. Subsequently, by rotating the support cylinder 104, the mounting ring frame 105 and the umbrella-shaped spray pipes 107 and the umbrella-shaped absorption trough frames 108 are driven to rotate at a uniform speed, thereby forming a circular area on the cross section of the tunnel. By utilizing the circular water mist area, the water mist concentration at various locations on the cross section of the tunnel is evenly distributed, and the absorption trough frames 108 are fully swept across various areas on the cross section, and the airflow and dust in each area are guided to be sucked to The dust is finally collected in the absorption tube 109 and finally flows into the dust removal chamber in the working box 111 for dust removal, thereby fully and synchronously completing the two steps of atomization and dust removal. The electric trolley 110 moves each component forward at a uniform speed along the axial direction of the tunnel, thereby completing all the work of cleaning, atomization dust reduction, and vacuum dust removal in all parts of the tunnel at one time and completely and fully, achieving optimal work efficiency, and there are no dead angles in the work, and all areas of the tunnel can be swept. When the work is completed, the mounting trough frame 106 and the absorption trough frame 108 are restored to the retracted state, and the size is matched with the working box 111, which greatly reduces the difficulty of storage. The overall device is very compact and the space utilization efficiency is very excellent.

[0042] A connecting drum 201 is embedded in one end of the support cylinder 104 near the power box 103. The connecting drum 201 is hollow in structure. A hollow annular drum 202 is embedded and installed on the inner wall of the power box 103. The hollow annular drum 202 is movably sleeved on the slide bracket 102, and the hollow annular drum 202 is rotatably connected to the connecting drum 201 and communicates with each other. Each spray pipe 107 is connected to the corresponding hollow annular drum 202 through the first hose 203, and each absorption pipe 109 is connected to the corresponding connecting drum 201 through the second hose 204. The working box 11 1 is connected to the corresponding hollow annular cylinder 202 through a water supply hose 205 and an air extraction hose 206 respectively. A transmission chamber 209 is provided in the power box 103 and on the outer periphery of the support cylinder 104. A second motor 213 is embedded and installed on the inner side wall of the power box 103 and below the hollow annular cylinder 202. A driving sprocket 210 is installed on the drive shaft of the second motor 213. A driven sprocket 211 is sleeved on the support cylinder 104 and located in the transmission chamber 209. The driven sprocket 211 and the driving sprocket 210 are driven by a transmission chain 212.

[0043] When the present embodiment is working, when the spray tube 107 or the absorption tank frame 108 is rotated, it is driven by the second motor 213 and transmitted through the driven sprocket 211, the driving sprocket 210 and the transmission chain 212, driving the support cylinder 104 to rotate, thereby rotating the umbrella-shaped spray tube 107 or the absorption tank frame 108 respectively, which can either perform atomization and dust removal simultaneously or perform their respective steps separately, and the number of spray tubes 107 or absorption tank frames 108 can be set according to actual needs to adapt to different site requirements, for example For example, when only two are provided, the rotation can be flexibly stopped when needed to avoid collision with other equipment. When supplying water, water is transported to the corresponding hollow annular cylinder 202 and the connecting rotating cylinder 201 through the water supply hose 205, and then evenly transported to each spray pipe 107 through each first hose 203. When removing dust, the total suction force is provided by the exhaust hose 206, and the cleaned dust is converged into the corresponding connecting rotating cylinder 201 and the hollow annular cylinder 202 through the second hose 204, thereby ensuring sealing and high efficiency during transportation.

[0044] The slide bracket 102 is equipped with a transmission screw 207 and a transmission slider 208. One end of the transmission screw 207 is fixedly connected to the rotating shaft of the first motor 101. The transmission screw 207 passes through the transmission slider 208 and is threadedly sleeved with it. Slide grooves are provided on both sides of the slide bracket 102. Both ends of the transmission slider 208 pass through the slide grooves and are fixedly connected to the side walls of the corresponding hollow ring cylinder 202. The end of the slide bracket 102 away from the first motor 101 is rotatably connected to a transmission ring frame 214. The two transmission ring frames 214 correspond to the mounting groove frame 106 and the absorption groove frame 108 respectively and are hinged by diagonal braces 215.

[0045] When this embodiment is working, the transmission screw 207 is rotated by the first motor 101, pushing the transmission slider 208 and the hollow ring cylinder 202 to move axially along the slide bracket 102, and the reaction force causes the diagonal support rod 215 to rotate, thereby extending or retracting in an umbrella shape, so that the spray tube 107 and the absorption tank frame 108 are both opened or retracted in an umbrella structure, and when opened, the power box 103 moves just above the end of the working box 111 to prevent the working box 111 from interfering with the rotation, and when retracted, it can be tightly retracted in the rectangular space, so that it can be extended and carried out comprehensive cleaning over a large range, and can also be retracted and stored in a small space. The first motor 101 can be set to one, thereby driving two transmission screws 207 at the same time, or it can be set to two, driving the two transmission screws 207 separately, to carry out more diverse and comprehensive dust control work.

[0046] The first motor 101 is installed in the middle of the upper surface of the working box 111 through the support frame 217. Support slides 219 are installed on both sides of the support frame 217, and the power box 103 is slidably connected to the support slides 219; a hollow frame structure is formed by the support slides 219 and the support frame 217 to facilitate the swinging of the water supply hose 205 and the air exhaust hose 206, and cooperate with the slide bracket 102 to support the power box 103, ensuring that each component remains stable during the extension and movement.

[0047] The spray pipe 107 is connected to a plurality of atomizing nozzles 218, and the absorption pipe 109 is connected to the absorption tank frame 108 through a plurality of converging air pipes 216. The atomizing nozzles 218 on the spray pipe 107 and the converging air pipes 216 on the absorption pipe 109 are distributed with gradually increasing spacing from the end farthest from the mounting ring frame 105 to the end close thereto; by forming a distribution state with gradually increasing spacing, the spray speed at each point on the cleaning circle radius is adapted to the size of the atomizing space, and the exhaust rate is adapted to the size of the suction space, thereby further ensuring that the water mist concentration in each area is evenly distributed and the dust suction efficiency is evenly distributed.

[0048] A second partition plate 301 is installed inside the working box 111 and on one side near the absorption tank frame 108. A support filter cartridge 302 is fixedly connected to the second partition plate 301 and the inner side wall of the working box 111. The support filter cartridge 302 passes through the corresponding second partition plate 301. The outer periphery of the support filter cartridge 302 is sealed and rotatably connected to a filter ring frame 303. A filter mesh cartridge 304 is installed between the two filter ring frames 303. The support filter cartridge 302 on the second partition plate 301 is connected to a junction cover 305. One side of the junction cover 305 is connected in sequence to a cyclone separator 306, a bag dust collector 308, and an exhaust pump 309.

[0049] When this embodiment is working, the exhaust hose 206 discharges the dust-containing gas sucked by the converging flow into the dust removal chamber of the working box 111, and first filters out large-sized dust such as fibers in the gas through the filter cylinder 304, and then inputs the gas into the cyclone separator 306 through the confluence cover 305 to further remove fine particles in the gas, and finally removes the fine dust in the gas through the bag dust collector 308, so that the clean airflow is discharged through the exhaust pump 309.

[0050] The cyclone separator 306 is connected to the dust collecting drum 307 below. The side wall of the working box 111 is embedded with an exhaust grille 310. The water supply chamber of the working box 111 is provided with a water storage barrel 311. A water supply pump 312 is installed on one side of the water storage barrel 311. The water supply pump 312 is connected to the water supply hose 205.

[0051] A second gear 403 and a cleaning brush roller 405 are provided on one side of the filter ring frame 303. The second gear 403 and the cleaning brush roller 405 are both rotatably connected to the working box 111. One side of the second gear 403 is meshed with the filter ring frame 303. The other side of the second gear 403 is provided with a first gear 402 and meshed with it. One side of the cleaning brush roller 405 is provided with two fourth gears 406 that mesh with each other. One side of the fourth gear 406 is provided with a third gear 404. The cleaning brush roller 405 and the third gear 404 are both driven by the corresponding fourth gear 406 through a belt loop. A third motor 401 is provided between the third gear 404 and the first gear 402. Both ends of the drive shaft of the third motor 401 and the third gear 404 and the first gear 402 are driven by a bevel gear set that meshes with each other.

[0052] When this embodiment is working, the third motor 401 simultaneously drives the first gear 402 and the third gear 404 to rotate, thereby synchronously driving the filter ring frame 303 and the cleaning brush roller 405 to rotate, and the second gear 403 and the two mutually meshing fourth gears 406 are used to adjust the rotation directions of the filter ring frame 303 and the cleaning brush roller 405 respectively, so that the cleaning efficiency of the cleaning brush roller 405 is optimized, thereby ensuring that the dust airflow can be filtered everywhere through the rotating filter cylinder 304, ensuring that everywhere remains working, and preventing dust from clogging the filter cylinder 304.

[0053] A dust collecting box 407 is spliced ​​and installed at the bottom of the working box 111 and below the filter screen cylinder 304. A scraping comb 408 is installed in the middle of the dust collecting box 407, and a steering pipe head 409 is installed at the end of the exhaust hose 206. The steering pipe head 409 is used to coordinate the dust airflow with the rotation direction of the filter screen cylinder 304, thereby further improving the utilization efficiency of the filter screen cylinder 304. The scraping comb 408 combs the cleaning brush roller 405, so that the fibers generated by cleaning are enriched in the dust collecting box 407.

[0054] A method for using a dust control device for tunnel construction, comprising the following steps:

[0055] The following steps are involved:

[0056] Step 1: Each mounting trough frame 106 and absorption trough frame 108 is expanded into an umbrella shape and moved to the end of the slide bracket 102 away from the first motor 101, thereby extending two umbrella-shaped structures at both ends of the working box 111. Subsequently, the second motor 213 drives the driven sprocket 211, the driving sprocket 210 and the transmission chain 212 to drive the support cylinder 104 to rotate, thereby rotating the spray pipe 107 or the absorption trough frame 108 in the umbrella shape, respectively, and driving the mounting ring frame 105 and the umbrella-shaped spray pipes 107 and the umbrella-shaped absorption trough frames 108 to rotate at a uniform speed;

[0057] Step 2: The electric trolley 110 moves each component forward at a constant speed along the axial direction of the tunnel, thereby performing all the work of cleaning, atomizing dust reduction, and exhausting dust removal in all places in the tunnel in one go and in a complete and sufficient manner;

[0058] Step 3: When supplying water, water is delivered to the corresponding hollow annular cylinder 202 and the connecting rotating cylinder 201 through the water supply hose 205, and then evenly delivered to each spray pipe 107 through each first hose 203. When removing dust, the exhaust hose 206 provides total suction force, and the cleaned dust is converged into the corresponding connecting rotating cylinder 201 and the hollow annular cylinder 202 through the second hose 204. The number of spray pipes 107 or absorption trough frames 108 can be set according to actual needs. When only two are set, the rotation can be flexibly paused when needed to avoid collision with other equipment.

[0059] Step 4: When the work is finished, the installation tank frame 106 and the absorption tank frame 108 are restored to the retracted state, and the size matches the working box 111.

[0060] When the present invention is in use, the worker opens each mounting trough frame 106 and absorption trough frame 108 in an umbrella-shaped state and moves them to the end of the slide bracket 102 away from the first motor 101, thereby extending two umbrella-shaped structures at both ends of the working box 111. Then, by rotating the support cylinder 104, the mounting ring frame 105 and the umbrella-shaped spray pipes 107 and the umbrella-shaped absorption trough frames 108 are driven to rotate at a constant speed, thereby forming a circular area on the cross section of the tunnel. The electric trolley 110 moves each component forward at a constant speed along the axial direction of the tunnel, thereby performing all the work of cleaning, atomizing dust reduction, and exhausting dust removal in all areas of the tunnel at one time and completely and fully, achieving optimal work efficiency, and without working blind spots, so that all areas of the tunnel can be swept.

[0061] By utilizing the circular water mist area, the water mist concentration is evenly distributed at various locations on the cross section of the tunnel, and the absorption trough frame 108 fully sweeps across various areas on the cross section, guiding the airflow and dust in each area to be sucked into the absorption pipe 109 and finally converged into the dust removal chamber in the working box 111 for dust removal. When the spray pipe 107 or the absorption trough frame 108 is rotated, it is driven by the second motor 213 and transmitted through the driven sprocket 211, the driving sprocket 210 and the transmission chain 212 to drive the support cylinder 104 to rotate, thereby rotating the umbrella-shaped spray pipe 107 or the absorption trough frame 108 respectively. Atomization and dust removal can be performed simultaneously, or their respective steps can be performed separately. The number of spray pipes 107 or absorption trough frames 108 can be set according to actual needs to adapt to different site requirements.

[0062] During operation, the transmission screw 207 is rotated by the first motor 101, pushing the transmission slider 208 and the hollow ring cylinder 202 to move axially along the slide bracket 102, and the reaction force causes the diagonal support rod 215 to rotate, thereby extending or retracting in an umbrella shape, so that the spray tube 107 and the absorption tank frame 108 are both opened or retracted in an umbrella-like structure, and when opened, the power box 103 moves just above the end of the working box 111 to prevent the working box 111 from interfering with the rotation, and when retracted, it can be tightly retracted in the rectangular space, so that it can be extended and carried out comprehensive cleaning over a large range, and can be retracted and stored in a small space. The first motor 101 can be set to one, thereby driving two transmission screws 207 at the same time, or it can be set to two, driving the two transmission screws 207 separately, to carry out more diverse and comprehensive dust control work.

[0063] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A dust control device for tunnel construction, characterized in that: The invention comprises a first motor (101), a slide bracket (102) is installed at both ends of the driving shaft of the first motor (101), a power box (103) is movably sleeved on the two slide brackets (102), a side of the power box (103) away from the first motor (101) is rotatably connected to a support tube (104), the support tube (104) is sleeved on the slide bracket (102) with a gap and is coaxial with the slide bracket (102), and an end of the support tube (104) away from the first motor (101) is fixedly sleeved with a mounting ring frame (105) , a plurality of mounting slot frames (106) are hingedly connected to one mounting ring frame (105), a spray tube (107) is installed in the mounting slot frame (106), an absorption slot frame (108) is hingedly connected to the other mounting ring frame (105), an absorption tube (109) is installed on one side of the absorption slot frame (108), a working box (111) is provided below the first motor (101), the working box (111) is divided into a water supply chamber and a dust removal chamber by a first partition plate (112), and an electric trolley (110) is installed at the bottom of the working box (111); A connecting rotating cylinder (201) is embedded in one end of the support cylinder (104) near the power box (103), and the connecting rotating cylinder (201) is hollow in structure. A hollow annular cylinder (202) is embedded and installed on the inner wall of the power box (103). The hollow annular cylinder (202) is movably sleeved on the slide bracket (102), and the hollow annular cylinder (202) and the connecting rotating cylinder (201) are rotatably connected and communicated with each other. Each spray tube (107) is connected to the corresponding hollow annular cylinder (202) through the first hose (203), and each absorption tube (109) is connected to the corresponding connecting rotating cylinder (201) through the second hose (204). The working box (1 The water supply chamber and the dust removal chamber of the power box (11) are respectively connected to the corresponding hollow annular cylinder (202) through the water supply hose (205) and the air extraction hose (206); a transmission chamber (209) is provided in the power box (103) and located on the outer periphery of the support cylinder (104); a second motor (213) is embedded and installed on the inner side wall of the power box (103) and located below the hollow annular cylinder (202); a driving sprocket (210) is installed on the driving shaft of the second motor (213); a driven sprocket (211) is provided on the support cylinder (104) and located in the transmission chamber (209); the driven sprocket (211) and the driving sprocket (210) are driven by a transmission chain (212); The slide bracket (102) is equipped with a transmission screw (207) and a transmission slider (208), one end of the transmission screw (207) is fixedly connected to the rotating shaft of the first motor (101), the transmission screw (207) passes through the transmission slider (208) and is threadedly sleeved thereon, and a slide groove is provided on both sides of the slide bracket (102), and both ends of the transmission slider (208) pass through the slide groove and are fixedly connected to the side wall of the corresponding hollow ring cylinder (202), and the end of the slide bracket (102) away from the first motor (101) is rotatably connected to the transmission ring frame (214), and the two transmission ring frames (214) correspond to the installation slot frame (106) and the absorption slot frame (108) respectively and are both hinged through the diagonal support rod (215); The first motor (101) is mounted on the middle portion of the upper surface of the working box (111) via a support frame (217), support slides (219) are mounted on both sides of the support frame (217), and the power box (103) is slidably connected to the support slides (219); The spray pipe (107) is connected to a plurality of atomizing nozzles (218), and the absorption pipe (109) is connected to the absorption tank frame (108) through a plurality of converging air pipes (216). The atomizing nozzles (218) on the spray pipe (107) and the converging air pipes (216) on the absorption pipe (109) are distributed with gradually increasing spacing from the end away from the mounting ring frame (105) to the end close to the mounting ring frame (105).

2. A dust control device for tunnel construction according to claim 1, characterized in that: A second partition plate (301) is installed in the working box (111) on a side close to the absorption tank frame (108); a support filter cartridge (302) is fixedly connected to the inner side wall of the second partition plate (301) and the working box (111); the support filter cartridge (302) passes through the corresponding second partition plate (301); the outer periphery of the support filter cartridge (302) is sealed and rotatably connected to a filter ring frame (303); a filter screen cartridge (304) is installed between the two filter ring frames (303); the support filter cartridge (302) on the second partition plate (301) is connected to a junction cover (305); and one side of the junction cover (305) is sequentially connected to a cyclone separator (306), a bag dust collector (308) and an exhaust pump (309).

3. A dust control device for tunnel construction according to claim 2, characterized in that: The cyclone separator (306) is connected to an ash collecting drum (307) below, an exhaust grille (310) is embedded in the side wall of the working box (111), a water storage barrel (311) is provided in the water supply cavity of the working box (111), a water supply pump (312) is installed on one side of the water storage barrel (311), and the water supply pump (312) is connected to a water supply hose (205).

4. A dust control device for tunnel construction according to claim 3, characterized in that: A second gear (403) and a cleaning brush roller (405) are provided on one side of the filter ring frame (303), and the second gear (403) and the cleaning brush roller (405) are both rotatably connected to the working box (111). One side of the second gear (403) is meshed with the filter ring frame (303), and the other side of the second gear (403) is provided with a first gear (402) and meshed with the first gear (402). Two mutually meshing fourth gears (406) are provided on one side of the cleaning brush roller (405), and a third gear (404) is provided on one side of the fourth gear (406). The cleaning brush roller (405) and the third gear (404) are both driven by the corresponding fourth gear (406) through a belt ring. A third motor (401) is provided between the third gear (404) and the first gear (402), and both ends of the drive shaft of the third motor (401) are driven by the third gear (404) and the first gear (402) through a mutually meshing bevel gear set.

5. A dust control device for tunnel construction according to claim 4, characterized in that: An ash collecting box (407) is spliced ​​and installed at the bottom of the working box (111) and below the filter screen cylinder (304). A shaving comb (408) is installed in the middle of the ash collecting box (407). A steering pipe head (409) is installed at the end of the exhaust hose (206).

6. A working method of a dust control device for tunnel construction, applied to a dust control device for tunnel construction as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: by expanding each mounting trough frame (106) and absorption trough frame (108) in an umbrella-shaped state and moving them to the end of the slide bracket (102) away from the first motor (101), two umbrella-shaped structures are extended at both ends of the working box (111), and then driven by the second motor (213) and transmitted through the driven sprocket (211), the driving sprocket (210) and the transmission chain (212), the support cylinder (104) is driven to rotate, thereby rotating the spray pipe (107) or the absorption trough frame (108) in the umbrella-shaped structure respectively, and driving the mounting ring frame (105) and each spray pipe (107) distributed in the umbrella shape and each absorption trough frame (108) in the umbrella shape to rotate at a uniform speed; Step 2: Using the electric trolley (110), each component is moved forward at a uniform speed along the axial direction of the tunnel, thereby performing all the work of cleaning, atomizing dust reduction, and exhausting dust removal in all places in the tunnel in one go and in a complete and sufficient manner; Step 3: When supplying water, water is delivered to the corresponding hollow annular cylinder (202) and the connecting rotating cylinder (201) through the water supply hose (205), and then evenly delivered to each spray pipe (107) through each first hose (203). When removing dust, the total suction force is provided by the exhaust hose (206), and the cleaned dust is converged into the corresponding connecting rotating cylinder (201) and the hollow annular cylinder (202) through the second hose (204). The number of spray pipes (107) or absorption tank racks (108) is set according to actual needs. When only two are set, the rotation can be flexibly stopped when needed to avoid collision with other equipment. Step 4: When the work is finished, the installation tank frame (106) and the absorption tank frame (108) are restored to the stowed state, and the size is matched with the working box (111).

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