Tunnel smooth blasting construction dust fall device and using method thereof

Abstract

The invention discloses a tunnel smooth blasting construction dust fall device and a using method thereof, relates to the technical field of blasting construction dust fall, and aims to solve the technical problem that the tunnel smooth blasting construction dust fall device is low in dust fall efficiency. The tunnel smooth blasting construction dust fall device comprises a moving mechanism, a dust fall mechanism, an extending mechanism and a reciprocating mechanism. Before smooth blasting of a tunnel, the moving mechanism moves to a proper distance away from the blasting position of the tunnel, the positions of the spraying ends of the spraying assemblies are adjusted through the extending mechanism, the spraying ends are matched with the tunnel in size, and the spraying assemblies spray mist to form a mist wall to block dust which is generated by smooth blasting and is high in diffusion speed; and when the follow-up dust falling volume is reduced and the diffusion speed of tunnel dust is driven to be reduced, the plurality of linkage assemblies of the reciprocating mechanism drive the plurality of spraying assemblies to rotate in a reciprocating manner, so that the plurality of spraying assemblies spray in a swinging manner for dust falling, and the dust falling efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of dust reduction in blasting construction, and more specifically to a dust reduction device for tunnel smooth surface blasting construction and a use method thereof. Background Art

[0002] Blasting is usually used in tunnel excavation. Blasting has strong adaptability to geological conditions and low excavation cost, and is particularly suitable for the construction of hard rock tunnels and broken rock tunnels. Smooth blasting is a controlled blasting technology that keeps the new wall surface flat without obvious damage. Its characteristics are to drill a row of smooth blasting holes with a hole spacing matching the minimum resistance line on the designed excavation contour line, and use uncoupled charges or other special charge structures. After the main excavation blasting, the charges in the smooth blasting holes are detonated at the same time, thus forming an excavation surface that runs through the smooth blasting holes and is smooth and flat.

[0003] However, after the blasting process, a large amount of dust will be generated at the blasting site, and it will spread rapidly at a certain speed and over a wide range, making it difficult to reduce the dust. At the same time, since the ventilation efficiency of the tunnel is generally low, the dust cannot be dissipated for a long time. It is necessary to use a dust reduction device to carry out dust reduction treatment on the tunnel before subsequent construction. Most of the existing dust reduction devices for smooth surface blasting construction of tunnels carry out dust reduction treatment after blasting, and the dust reduction area is wide, resulting in low dust reduction efficiency, thereby affecting the construction efficiency of the tunnel. In view of this, we propose a dust reduction device for smooth surface blasting construction of tunnels and a method for using the same. Summary of the invention

[0004] The object of the present invention is to provide a dust reduction device for tunnel smooth surface blasting construction and a use method thereof, so as to solve the technical problem of low dust reduction efficiency of the dust reduction device for tunnel smooth surface blasting construction.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a dust reduction device for smooth surface blasting construction of a tunnel and a method of using the same, comprising a moving mechanism, a dust reduction mechanism, an extension mechanism and a reciprocating mechanism; the dust reduction mechanism comprises a water tank and a plurality of spray assemblies, the water tank is fixedly arranged at the tail of the moving mechanism, a high-pressure spray pump is fixedly arranged at the head end of the water tank, an input end of the high-pressure spray pump is connected to the water tank, and a plurality of the spray assemblies are connected to an output end of the high-pressure spray pump; the extension mechanism is arranged at the head of the water tank, the extension mechanism has a plurality of extension ends, the plurality of the extension ends are arranged in an arch shape, and a plurality of the spray assemblies are respectively arranged on the plurality of the extension ends; the reciprocating mechanism is arranged on the extension mechanism, the reciprocating mechanism comprises a reciprocating rotating assembly and a plurality of linkage assemblies, the input ends of the plurality of linkage assemblies are connected by a chain transmission, the output ends of the plurality of linkage assemblies are respectively meshed and connected with a plurality of the spray assemblies, and the output end of the reciprocating rotating assembly is connected to the chain transmission. Before the smooth surface blasting of the tunnel, the present invention moves to an appropriate distance from the tunnel blasting site through a moving mechanism, and adjusts the positions of the spray ends of a plurality of spray assemblies through an extending mechanism to match the size of the tunnel. The plurality of spray assemblies spray to form a fog wall to block the dust with a faster diffusion speed generated by the smooth surface blasting, thereby reducing the subsequent dust reduction volume. When the diffusion speed of the tunnel dust slows down, the plurality of spray assemblies are driven to reciprocate through a plurality of linkage assemblies of a reciprocating mechanism, so that the plurality of spray assemblies all perform swinging spraying to reduce dust, and the dust reduction efficiency is high.

[0006] Preferably, two slide grooves A are provided at the top of the moving mechanism.

[0007] Preferably, the extension mechanism includes an arched plate and an adjustment component, the arched plate is fixedly arranged at the head end of the moving mechanism, a plurality of sliding guide grooves are provided in the gap on the circumferential surface of the arched plate, a slide plate is slidably connected to the slide guide groove, a mounting seat is fixedly arranged at one end of the slide plate away from the arched plate, the extension end is constituted by the mounting seat, and the adjustment component is arranged in the gap between the arched plate and the water tank.

[0008] Preferably, the adjustment component includes a swivel seat A and a motor A, the swivel seat A is arranged on the head side of the water tank and fixedly connected to the top of the moving mechanism, the motor A is arranged at the tail end of the swivel seat A and fixedly connected to the top of the moving mechanism, a screw rod is provided in the gap between the swivel seat A and the arch plate, the two ends of the screw rod are respectively rotatably connected to the swivel seat A and the arch plate, the tail end of the screw rod passes through the swivel seat A and is fixedly connected to the output shaft of the motor A, an adjustment plate is threadedly connected to the screw rod, and sliders A are fixedly provided on both sides of the bottom end of the adjustment plate, and the sliders A are slidably connected to the slide groove A.

[0009] Preferably, a plurality of swivel seats B are fixedly provided at the head end of the adjustment plate relative to the positions of the plurality of mounting seats, a connecting rod is arranged in the gap between the swivel seat B and the mounting seat, the connecting rod is rotatably connected to the mounting seat via a rotating shaft A, and the connecting rod is rotatably connected to the swivel seat B via a rotating shaft B; the interior of the adjustment plate is hollow to form a mounting cavity, and a slide groove B is provided at the rear end of the mounting cavity.

[0010] Preferably, the dust reduction mechanism further comprises an arch frame, which is fixed at the top of the moving mechanism relative to the rotating seat B, and the arch frame is provided with a plurality of through holes, and the plurality of through holes are arranged in an arch structure.

[0011] Preferably, the spray assembly includes a rotating tube, which is rotatably arranged on the mounting seat away from one end of the slide, a gear ring is fixedly provided on the top of the rotating tube, a mounting block is fixedly provided on the top of the gear ring, a hard tube is fixedly provided in the mounting block, an atomizing nozzle is fixedly provided on one side of the mounting block, one end of the hard tube is connected with the atomizing nozzle, and the other end of the hard tube passes through the mounting block, the gear ring and the rotating tube in sequence and is connected with a hose, and the input end of the hose passes through the through hole and is connected with the output end of the high-pressure spray pump.

[0012] Preferably, the linkage assembly includes a coupling shaft, a pulley A, a pulley B and a transmission gear A, a plurality of the coupling shafts are rotatably arranged at the head end of the installation cavity relative to a plurality of the rotating seats B, a sprocket A is fixedly arranged at the tail end of the coupling shaft, and the sprocket A is transmission-connected with the chain, the head end of the coupling shaft passes through the installation cavity and extends to the outside of the adjustment plate and is fixedly provided with a bevel gear A, a bevel gear B is meshedly connected to the bevel gear A, the rotating shaft B passes through the rotating seat B at one end close to the bevel gear B and is fixedly connected to the bevel gear B, and the pulley A is arranged at the rotating seat B away from the bevel gear B On one side, the end of the rotating shaft B close to the pulley A passes through the rotating seat B and is fixedly connected to the pulley A, the pulley B is arranged on one side of the mounting seat relative to the pulley A, the end of the rotating shaft A close to the pulley B passes through the mounting seat and is fixedly connected to the pulley B, the pulley A and the pulley B are connected by a transmission belt, the transmission gear A is arranged on the other side of the mounting seat, the rotating shaft A passes through the mounting seat close to the transmission gear A and is fixedly connected to the transmission gear A, and the transmission gear A is meshed with the gear ring.

[0013] Preferably, the reciprocating rotating component includes a rotating shaft C and a motor B, the rotating shaft C is rotatably arranged in the installation cavity, the rotating shaft C is fixedly provided with a sprocket B at a position relative to the chain, the tail side of the sprocket B is provided with a transmission gear B fixedly connected to the rotating shaft C, the transmission gear B is transmission-connected to the chain, the bottom end of the transmission gear B is meshedly connected with a rack, the tail end of the rack is fixedly provided with a connecting strip plate, both sides of the tail end of the connecting strip plate are fixedly provided with sliders B, two sliders B are slidingly connected to the slide groove B, one side of the tail end of the rack is rotatably connected to a connecting rod A through a rotating rod, the connecting rod A is rotatably connected to a right-angle rod at one end away from the rack, the motor B is fixedly provided at the tail end of the adjusting plate, the input end of the right-angle rod passes through the adjusting plate and is fixedly connected to the output shaft of the motor B, and the right-angle rod is rotatably connected to the adjusting plate.

[0014] A method for using a dust reduction device for tunnel smooth surface blasting construction comprises the following steps: S1: Dust barrier: S1, 1: Move the device to an appropriate distance from the blasting site: S1, 2: Adjustment of the atomizing nozzle position; According to the size of the tunnel, the output shaft of the motor A is controlled to rotate through an external control mechanism, so that the screw rod rotates, and the adjustment plate drives the slider A to slide along the slide groove A, so that the connecting rod moves and rotates relative to the rotating seat B, so that the other end of the connecting rod drives the mounting seat and the slide plate to slide along the slide guide groove. The change of the position of the mounting seat changes the position of the atomizing nozzle, so that the plurality of atomizing nozzles are close to the surface of the tunnel; S1, 3: Use fog wall to block dust; Before smooth surface blasting of the tunnel, a high-pressure spray pump is controlled by an external control mechanism, so that water from the water tank passes through the high-pressure spray pump, several hoses, and hard pipes in sequence into the atomizing nozzle and is sprayed out in the form of mist. At this time, the atomizing nozzle sprays toward the surface of the tunnel, so that the mist sprayed by several atomizing nozzles forms a mist wall, which blocks the dust with a faster diffusion speed generated by smooth surface blasting and reduces the subsequent dust reduction volume; S2: Dust reduction treatment: When the dust diffusion speed slows down, the output shaft of the motor B rotates through the external control mechanism, so that the right-angle rod rotates and drives the rack and the connecting strip plate to slide along the slide groove B with the slider B through the connecting rod A, so that the transmission gear B rotates back and forth and drives the sprocket B to rotate back and forth through the rotating shaft C, so that the reciprocating rotation of the chain drives several sprockets A, connecting shafts and bevel gears A to rotate back and forth, so that the bevel gear B, rotating shaft B and pulley A rotate back and forth, and the reciprocating rotation of pulley A drives the pulley B, rotating shaft A and transmission gear A to rotate back and forth through the transmission belt, so that several rotations drive the mounting blocks and atomizing nozzles to rotate back and forth with the rotating tube relative to the mounting seat, so that several atomizing nozzles all use swinging spray to reduce dust.

[0015] The beneficial effects of the present invention are: 1. Before the smooth surface blasting of the tunnel, the present invention moves to an appropriate distance from the tunnel blasting site through a moving mechanism, and adjusts the positions of the spray ends of several spray assemblies through an extension mechanism, which is adapted to the size of the tunnel. Several spray assemblies spray to form a fog wall to block the dust with a faster diffusion speed generated by the smooth surface blasting, reduce the subsequent dust reduction volume, and drive the tunnel dust diffusion speed to slow down. When the several linkage assemblies of the reciprocating mechanism drive the several spray assemblies to reciprocate, the several spray assemblies are all swung sprayed for dust reduction, and the dust reduction efficiency is high.

[0016] 2. The structural design of the extension mechanism of the present invention enables the output shaft of motor A to be controlled to rotate by an external control mechanism, so that the positions of several mounting seats and atomizing nozzles can be controlled to be equidistantly enlarged in an arched structure, which is easy to adjust and can be applied to dust reduction in smooth surface blasting construction of tunnels of different sizes, and ensure the barrier effect of dust generated by blasting, thereby ensuring the subsequent dust reduction efficiency.

[0017] 3. The present invention adopts the structural design of the reciprocating mechanism, so that the output shaft of the motor B of the external control mechanism can be continuously rotated in one direction, thereby controlling a plurality of atomizing nozzles to spray in a swinging manner, so as to further improve the dust reduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial structure disassembly of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 It is a schematic diagram of the spraying state of the spray assembly of the present invention when blocking dust; Figure 5 It is a schematic diagram of the split structure of the extension mechanism and the reciprocating mechanism of the present invention; Figure 6 for Figure 5 A schematic diagram of the enlarged structure of part B; Figure 7 It is a schematic diagram of the disassembled structure of the linkage assembly, the slide plate and the mounting seat of the present invention; Figure 8 It is a partial structural schematic diagram of the reciprocating mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the reciprocating rotating component of the present invention.

[0019] Description of the numbers in the figure: 1. Moving mechanism; 2. Dust reduction mechanism; 3. Extension mechanism; 4. Reciprocating mechanism; 21. Water tank; 22. Spray assembly; 23. High-pressure spray pump; 24. Arch frame; 221, rotating tube; 222, hose; 223, gear ring; 224, mounting block; 225, hard tube; 226, atomizing nozzle; 31. Arched plate; 32. Slide guide groove; 33. Slide plate; 34. Mounting seat; 35. Adjustment assembly; 351, swivel seat A; 352, motor A; 353, screw rod; 354, adjustment plate; 355, slider A; 356, swivel seat B; 357, connecting rod; 358, rotating shaft A; 359, rotating shaft B; 3541, installation cavity; 3542, slide groove B; 41. Linkage assembly; 42. Chain; 43. Reciprocating rotating assembly; 410, sprocket A; 411, coupling; 412, bevel gear A; 413, bevel gear B; 414, pulley A; 415, pulley B; 416, transmission belt; 417, transmission gear A; 431. Rotating shaft C; 432. Sprocket gear B; 433. Transmission gear B; 434. Rack; 435. Connecting strip; 436. Slider B; 437. Linking rod A; 438. Right-angle rod; 439. Motor B. DETAILED DESCRIPTION

[0020] like Figures 1 to 9 As shown, the present invention relates to a dust reduction device for smooth blasting construction of a tunnel and a method for using the same, comprising a moving mechanism 1, a dust reduction mechanism 2, an extension mechanism 3 and a reciprocating mechanism 4; the dust reduction mechanism 2 comprises a water tank 21 and a plurality of spray assemblies 22, the water tank 21 is fixedly arranged at the tail of the moving mechanism 1, a high-pressure spray pump 23 is fixedly arranged at the head end of the water tank 21, an input end of the high-pressure spray pump 23 is connected to the water tank 21, and a plurality of spray assemblies 22 are all connected to an output end of the high-pressure spray pump 23; the extension mechanism 3 is arranged at the head of the water tank 21, the extension mechanism 3 has a plurality of extension ends, the plurality of extension ends are arranged in an arch shape, and the plurality of spray assemblies 22 are respectively arranged on the plurality of extension ends; The reciprocating mechanism 4 is arranged on the extension mechanism 3, and the reciprocating mechanism 4 includes a reciprocating rotating component 43 and a plurality of linkage components 41. The input ends of the plurality of linkage components 41 are connected through a chain 42 for transmission, and the output ends of the plurality of linkage components 41 are respectively meshed and connected with a plurality of spray components 22. The output end of the reciprocating rotating component 43 is connected with the chain 42 for transmission.

[0021] In the embodiment of the present invention, two slide grooves A11 are provided at the top of the moving mechanism 1 .

[0022] In the embodiment of the present invention, the extension mechanism 3 includes an arch plate 31 and an adjustment component 35. The arch plate 31 is fixedly arranged at the head end of the moving mechanism 1. A plurality of slide guide grooves 32 are provided in the gap of the peripheral surface of the arch plate 31. A slide plate 33 is slidably connected to the slide guide groove 32. A mounting seat 34 is fixedly arranged at one end of the slide plate 33 away from the arch plate 31. The extension end is composed of the mounting seat 34. The adjustment component 35 is arranged in the gap between the arch plate 31 and the water tank 21. Through the above arrangement, the present invention enables the slide plate 33 to slide relative to the slide guide groove 32, and a portion of the slide guide grooves 32 located on the top arc surface of the arch plate 31 are arranged in a circular equidistant structure, and a portion of the slide guide grooves 32 located on the two sides of the arch plate 31 are arranged in a linear equidistant structure.

[0023] In an embodiment of the present invention, the adjustment component 35 includes a swivel seat A351 and a motor A352. The swivel seat A351 is arranged at the head side of the water tank 21 and is fixedly connected to the top of the moving mechanism 1. The motor A352 is arranged at the tail end of the swivel seat A351 and is fixedly connected to the top of the moving mechanism 1. A screw rod 353 is arranged in the gap between the swivel seat A351 and the arch plate 31. The two ends of the screw rod 353 are rotatably connected to the swivel seat A351 and the arch plate 31 respectively. The tail end of the screw rod 353 passes through the swivel seat A351 and is fixedly connected to the output shaft of the motor A352. An adjustment plate 354 is threadedly connected to the screw rod 353. Slide blocks A355 are fixedly arranged on both sides of the bottom end of the adjustment plate 354. The slide blocks A355 are slidably connected to the slide groove A11. Through the above arrangement, the present invention controls the rotation of the output shaft of the motor A352 through an external control mechanism, so that the screw rod 353 rotates, and the adjustment plate 354 drives the slide block A355 to slide along the slide groove A11.

[0024] In the embodiment of the present invention, a plurality of rotating seats B356 are fixedly arranged at the head end of the adjustment plate 354 relative to the plurality of mounting seats 34, a connecting rod 357 is arranged in the gap between the rotating seat B356 and the mounting seat 34, the connecting rod 357 is rotationally connected to the mounting seat 34 via the rotating shaft A358, and the connecting rod 357 is rotationally connected to the rotating seat B356 via the rotating shaft B359; the adjustment plate 354 is hollow inside to form a mounting cavity 3541, and a sliding groove B3542 is provided at the tail end of the mounting cavity 3541. The present invention adopts the above arrangement, so that when the adjustment plate 354 moves, the connecting rod 357 moves accordingly and rotates relative to the rotating seat B356, so that the other end of the connecting rod 357 drives the mounting seat 34 and the slide plate 33 to slide along the sliding guide groove 32, and the position of the mounting seat 34 changes.

[0025] In an embodiment of the present invention, the dust reduction mechanism 2 also includes an arch frame 24, which is fixed at the top of the moving mechanism 1 relative to the position of the rotating seat B356. The arch frame 24 is provided with a plurality of through holes, and the plurality of through holes are arranged in an arch structure; the spray assembly 22 includes a rotating tube 221, which is rotatably arranged at the end of the mounting seat 34 away from the slide plate 33. A gear ring 223 is fixed at the top of the rotating tube 221, and a mounting block 224 is fixed at the top of the gear ring 223. A hard tube 225 is fixed in the mounting block 224, and an atomizing nozzle 226 is fixed on one side of the mounting block 224. One end of the hard tube 225 is connected to the atomizing nozzle 226, and the other end of the hard tube 225 passes through the mounting block 224, the gear ring 223 and the rotating tube 221 in sequence and is connected to a hose 222. The input end of the hose 222 passes through the through hole and is connected to the output end of the high-pressure spray pump 23. Through the above arrangement, the present invention enables the atomizing nozzle 226 to move with the movement of the mounting seat 34, wherein the hard tube 225 and the arch frame 24 are provided to limit the position of the hose 222 to a certain extent, so that the hose 222 is not easily entangled when the mounting seat 34 moves.

[0026] In an embodiment of the present invention, the linkage assembly 41 includes a coupling shaft 411, a pulley A414, a pulley B415 and a transmission gear A417. A plurality of coupling shafts 411 are rotatably arranged at the head end of the mounting cavity 3541 relative to a plurality of rotating seats B356. A sprocket A410 is fixedly arranged at the tail end of the coupling shaft 411. The sprocket A410 is transmission-connected with the chain 42. The head end of the coupling shaft 411 passes through the mounting cavity 3541 and extends to the outside of the adjustment plate 354 and is fixedly provided with a bevel gear A412. The bevel gear A412 is meshedly connected with a bevel gear B413. The rotating shaft B359 passes through the rotating seat B356 at one end close to the bevel gear B413 and is fixedly connected with the bevel gear B413. The pulley A414 is arranged at the rotating seat B356 is away from one side of the bevel gear B413, and the rotating shaft B359 passes through the rotating seat B356 at one end close to the pulley A414 and is fixedly connected to the pulley A414. The pulley B415 is arranged on one side of the mounting seat 34 relative to the pulley A414, and the rotating shaft A358 passes through the mounting seat 34 at one end close to the pulley B415 and is fixedly connected to the pulley B415. The pulley A414 and the pulley B415 are connected through the transmission belt 416. The transmission gear A417 is arranged on the other side of the mounting seat 34, and the rotating shaft A358 passes through the mounting seat 34 close to the transmission gear A417 and is fixedly connected to the transmission gear A417. The transmission gear A417 is meshed with the gear ring 223. Through the above arrangement, the present invention enables the sprocket A410, the connecting shaft 411 and the bevel gear A412 to reciprocate, and the bevel gear B413, the rotating shaft B359 and the pulley A414 to reciprocate. The reciprocating rotation of the pulley A414 drives the pulley B415, the rotating shaft A358 and the transmission gear A417 to reciprocate through the transmission belt 416, so that the several rotations drive the mounting block 224 and the atomizing nozzle 226 to reciprocate with the rotating tube 221 relative to the mounting seat 34, so that the several atomizing nozzles 226 all spray in a swinging manner, further improving the dust reduction efficiency.

[0027] In an embodiment of the present invention, the reciprocating rotating assembly 43 includes a rotating shaft C431 and a motor B439. The rotating shaft C431 is rotatably arranged in the installation cavity 3541. A sprocket B432 is fixedly arranged on the rotating shaft C431 relative to the chain 42. A transmission gear B433 fixedly connected to the rotating shaft C431 is arranged on the rear side of the sprocket B432. The transmission gear B433 is transmission-connected to the chain 42. A rack 434 is meshedly connected to the bottom end of the transmission gear B433. A connecting strip plate 435 is fixedly arranged on the rear end of the rack 434. Slide blocks B436 are fixed on both sides of the tail end of the connecting strip plate 435, and the two slide blocks B436 are slidably connected to the slide groove B3542. One side of the tail end of the rack 434 is rotatably connected to the linkage rod A437 through a rotating rod, and the end of the linkage rod A437 away from the rack 434 is rotatably connected to the right-angle rod 438. The motor B439 is fixed at the tail end of the adjustment plate 354, and the input end of the right-angle rod 438 passes through the adjustment plate 354 and is fixedly connected to the output shaft of the motor B439, and the right-angle rod 438 is rotatably connected to the adjustment plate 354. Through the above arrangement, the present invention allows the output shaft of the motor B439 to rotate through the external control mechanism, so that the right-angle rod 438 rotates and drives the rack 434 and the connecting strip plate 435 to slide along the slide groove B3542 along with the slider B436 through the linkage rod A437, so that the transmission gear B433 reciprocates and drives the sprocket gear B432 to reciprocate through the rotating shaft C431, so that the chain 42 reciprocates.

[0028] The present invention adopts the structural design of the reciprocating mechanism 4 so that the output shaft of the external control mechanism motor B439 can be continuously rotated in one direction, thereby controlling a plurality of atomizing nozzles 226 to spray in a swinging manner, thereby further improving the dust reduction efficiency.

[0029] A method for using a dust reduction device for tunnel smooth surface blasting construction comprises the following steps: S1: Dust barrier: S1, 1: Move the device to an appropriate distance from the blasting site: S1, 2: Adjustment of the position of the atomizing nozzle 226; According to the size of the tunnel, the output shaft of the motor A352 is controlled to rotate through an external control mechanism, so that the screw rod 353 rotates, and the adjustment plate 354 drives the slider A355 to slide along the slide groove A11, so that the connecting rod 357 moves accordingly and rotates relative to the rotating seat B356, so that the other end of the connecting rod 357 drives the mounting seat 34 and the slide plate 33 to slide along the slide guide groove 32. The change in the position of the mounting seat 34 causes the position of the atomizing nozzle 226 to change accordingly, so that a plurality of atomizing nozzles 226 are close to the tunnel surface; S1, 3: Use fog wall to block dust; Before the smooth surface blasting of the tunnel, the high-pressure spray pump 23 is controlled by an external control mechanism, so that water from the water tank 21 passes through the high-pressure spray pump 23, a plurality of hoses 222, and a hard pipe 225 in sequence and enters the atomizing nozzle 226 and is sprayed out in the form of mist. At this time, the atomizing nozzle 226 sprays toward the surface of the tunnel, so that the mist sprayed by the plurality of atomizing nozzles 226 forms a mist wall, which blocks the dust with a faster diffusion speed generated by the smooth surface blasting and reduces the subsequent dust reduction volume; S2: Dust reduction treatment: When the dust diffusion speed slows down, the output shaft of the motor B439 of the external control mechanism rotates, causing the right-angle rod 438 to rotate and driving the rack 434 and the connecting strip 435 through the connecting rod A437 to slide along the slide groove B3542 with the slider B436, so that the transmission gear B433 rotates back and forth and drives the sprocket B432 to rotate back and forth through the rotating shaft C431, so that the chain 42 rotates back and forth to drive several sprockets A410, the connecting shaft 411 and the bevel gear A412 to rotate back and forth, so that the bevel gear B413, the rotating shaft B359 and the pulley A414 rotate back and forth, and the pulley A414 rotates back and forth to drive the pulley B415, the rotating shaft A358 and the transmission gear A417 to rotate back and forth through the transmission belt 416, so that several rotations drive the mounting block 224 and the atomizing nozzle 226 to rotate back and forth with the rotating tube 221 relative to the mounting seat 34, so that several atomizing nozzles 226 all use swinging spray to reduce dust.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A dust suppression device for tunnel smooth surface blasting construction, characterized in that: It comprises a moving mechanism (1), a dust reduction mechanism (2), an extension mechanism (3) and a reciprocating mechanism (4); The dust suppression mechanism (2) comprises a water tank (21) and a plurality of spray assemblies (22); the water tank (21) is fixedly mounted at the rear of the moving mechanism (1); a high-pressure spray pump (23) is fixedly mounted at the head end of the water tank (21); an input end of the high-pressure spray pump (23) is connected to the water tank (21); and a plurality of spray assemblies (22) are connected to an output end of the high-pressure spray pump (23); The extension mechanism (3) is arranged at the head of the water tank (21), the extension mechanism (3) has a plurality of extension ends, the plurality of extension ends are arranged in an arch shape, and the plurality of spray assemblies (22) are respectively arranged on the plurality of extension ends; The reciprocating mechanism (4) is arranged on the extending mechanism (3), and the reciprocating mechanism (4) comprises a reciprocating rotating component (43) and a plurality of linkage components (41), the input ends of the plurality of linkage components (41) are connected by a chain (42), the output ends of the plurality of linkage components (41) are respectively meshed and connected with a plurality of the spray components (22), and the output end of the reciprocating rotating component (43) is connected by a chain (42).

2. The dust suppression device for tunnel smooth blasting construction according to claim 1 is characterized in that: Two slide grooves A (11) are provided at the top of the moving mechanism (1).

3. The dust suppression device for tunnel smooth blasting construction according to claim 2 is characterized in that: The extension mechanism (3) comprises an arch plate (31) and an adjustment assembly (35). The arch plate (31) is fixedly mounted at the head end of the moving mechanism (1). A plurality of sliding guide grooves (32) are provided in the gap on the circumferential surface of the arch plate (31). A slide plate (33) is slidably connected to the slide guide groove (32). A mounting seat (34) is fixedly mounted at one end of the slide plate (33) away from the arch plate (31). The extension end is formed by the mounting seat (34). The adjustment assembly (35) is provided in the gap between the arch plate (31) and the water tank (21).

4. The dust suppression device for tunnel smooth blasting construction according to claim 3 is characterized in that: The adjustment assembly (35) comprises a rotating seat A (351) and a motor A (352). The rotating seat A (351) is arranged at the head side of the water tank (21) and is fixedly connected to the top of the moving mechanism (1). The motor A (352) is arranged at the rear end of the rotating seat A (351) and is fixedly connected to the top of the moving mechanism (1). A screw rod (353) is arranged in the gap between the rotating seat A (351) and the arch plate (31). The two ends of the screw rod (353) are respectively rotatably connected to the rotating seat A (351) and the arch plate (31). The rear end of the screw rod (353) passes through the rotating seat A (351) and is fixedly connected to the output shaft of the motor A (352). An adjustment plate (354) is threadedly connected to the screw rod (353). Slide blocks A (355) are fixedly arranged on both sides of the bottom end of the adjustment plate (354). The slide blocks A (355) are slidably connected to the slide groove A (11).

5. The dust suppression device for tunnel smooth blasting construction according to claim 4 is characterized in that: A plurality of rotating seats B (356) are fixedly arranged at the head end of the adjustment plate (354) relative to the plurality of mounting seats (34); a connecting rod (357) is arranged in the gap between the rotating seat B (356) and the mounting seat (34); the connecting rod (357) is rotationally connected to the mounting seat (34) via a rotating shaft A (358); the connecting rod (357) is rotationally connected to the rotating seat B (356) via a rotating shaft B (359); the adjustment plate (354) is hollow inside to form a mounting cavity (3541); a slide groove B (3542) is provided at the rear end of the mounting cavity (3541).

6. The dust suppression device for tunnel smooth blasting construction according to claim 5, characterized in that: The dust reduction mechanism (2) further comprises an arch frame (24) which is fixedly arranged at the top of the moving mechanism (1) at a position relative to the rotating seat B (356); the arch frame (24) is provided with a plurality of through holes, and the plurality of through holes are arranged in an arch structure.

7. The dust suppression device for tunnel smooth blasting construction according to claim 6, characterized in that: The spray assembly (22) comprises a rotating tube (221), the rotating tube (221) being rotatably arranged at one end of the mounting seat (34) away from the slide plate (33), a toothed ring (223) being fixedly arranged at the top end of the rotating tube (221), a mounting block (224) being fixedly arranged at the top end of the toothed ring (223), a hard tube (225) being fixedly arranged inside the mounting block (224), an atomizing nozzle (226) being fixedly arranged at one side of the mounting block (224), one end of the hard tube (225) being connected to the atomizing nozzle (226), and the other end of the hard tube (225) passing through the mounting block (224), the toothed ring (223) and the rotating tube (221) in sequence and being connected to a hose (222), the input end of the hose (222) passing through the through hole and being connected to the output end of the high-pressure spray pump (23).

8. The dust suppression device for tunnel smooth blasting construction according to claim 7, characterized in that: The linkage assembly (41) comprises a connecting shaft (411), a pulley A (414), a pulley B (415) and a transmission gear A (417); a plurality of the connecting shafts (411) are rotatably arranged at the head end of the mounting cavity (3541) relative to a plurality of the rotating seats B (356); a sprocket A (410) is fixedly arranged at the tail end of the connecting shaft (411); the sprocket A (410) is transmission-connected to the chain (42); and the connecting shaft (411) is disposed at the head end thereof. The end of the rotating shaft B (359) passes through the mounting cavity (3541) and extends to the outside of the adjusting plate (354) and is fixedly provided with a bevel gear A (412). The bevel gear A (412) is meshingly connected with a bevel gear B (413). The end of the rotating shaft B (359) close to the bevel gear B (413) passes through the rotating seat B (356) and is fixedly connected to the bevel gear B (413). The pulley A (414) is arranged on the rotating seat B (356) away from the bevel gear. On one side of the pulley B (413), the rotating shaft B (359) passes through the rotating seat B (356) near one end of the pulley A (414) and is fixedly connected to the pulley A (414); the pulley B (415) is arranged on one side of the mounting seat (34) relative to the pulley A (414); the rotating shaft A (358) passes through the mounting seat (34) near one end of the pulley B (415) and is fixedly connected to the pulley B (415); the pulley A (414) and the pulley B (415) are connected by transmission belt (416); the transmission gear A (417) is arranged on the other side of the mounting seat (34); the rotating shaft A (358) passes through the mounting seat (34) near the transmission gear A (417) and is fixedly connected to the transmission gear A (417); the transmission gear A (417) is meshed with the gear ring (223).

9. The dust suppression device for tunnel smooth blasting construction according to claim 8, characterized in that: The reciprocating rotating assembly (43) comprises a rotating shaft C (431) and a motor B (439). The rotating shaft C (431) is rotatably arranged in the mounting cavity (3541). A sprocket B (432) is fixedly arranged on the rotating shaft C (431) relative to the chain (42). A transmission gear B (433) is fixedly connected to the rotating shaft C (431) at the rear side of the sprocket B (432). The transmission gear B (433) is transmission-connected to the chain (42). A rack (434) is meshedly connected at the bottom end of the transmission gear B (433). A connecting strip plate (435) is fixedly arranged at the rear end of the rack (434). The connecting strip plate (435) is fixedly arranged at the rear end of the rack. Slide blocks B (436) are fixedly provided on both sides of the rear end of the plate (435), and the two slide blocks B (436) are slidably connected to the slide groove B (3542). One side of the rear end of the rack (434) is rotatably connected to a connecting rod A (437) through a rotating rod. The connecting rod A (437) is rotatably connected to a right-angle rod (438) at one end away from the rack (434). The motor B (439) is fixedly provided at the rear end of the adjustment plate (354), and the input end of the right-angle rod (438) passes through the adjustment plate (354) and is fixedly connected to the output shaft of the motor B (439). The right-angle rod (438) is rotatably connected to the adjustment plate (354).

10. The method for using the dust suppression device for tunnel smooth blasting construction according to claim 9, characterized in that: The following steps are involved: S1: Dust barrier: S1, 1: Move the device to an appropriate distance from the blasting site: S1, 2: adjustment of the position of the atomizing nozzle (226); According to the size of the tunnel, the output shaft of the motor A (352) is controlled to rotate through an external control mechanism, so that the screw rod (353) rotates, so that the adjustment plate (354) drives the slider A (355) to slide along the slide groove A (11), so that the connecting rod (357) moves accordingly and rotates relative to the rotating seat B (356), so that the other end of the connecting rod (357) drives the mounting seat (34) and the sliding plate (33) to slide along the guide groove (32), and the change of the position of the mounting seat (34) causes the position of the atomizing nozzle (226) to change accordingly, so that the plurality of atomizing nozzles (226) are close to the surface of the tunnel; S1, 3: Use fog wall to block dust; Before smooth surface blasting of the tunnel, a high-pressure spray pump (23) is controlled by an external control mechanism, so that water from the water tank (21) passes through the high-pressure spray pump (23), a plurality of hoses (222), and a hard pipe (225) in sequence and enters the atomizing nozzle (226) and is sprayed out in the form of mist. At this time, the atomizing nozzle (226) sprays toward the surface of the tunnel, so that the mist sprayed by the plurality of atomizing nozzles (226) forms a mist wall, which blocks the dust with a faster diffusion speed generated by the smooth surface blasting, thereby reducing the subsequent dust reduction volume; S2: Dust reduction treatment: When the dust diffusion speed slows down, the output shaft of the motor B (439) of the external control mechanism rotates, causing the right-angle rod (438) to rotate and drive the rack (434) and the connecting strip plate (435) to slide along the slide groove B (3542) along with the slider B (436) through the connecting rod A (437), so that the transmission gear B (433) reciprocates and drives the sprocket B (432) to reciprocate through the rotating shaft C (431), so that the chain (42) reciprocates and drives the plurality of sprockets A (410), the connecting shaft (411) and the bevel gears. The wheel A (412) reciprocates, causing the bevel gear B (413), the rotating shaft B (359) and the pulley A (414) to reciprocate. The reciprocating rotation of the pulley A (414) drives the pulley B (415), the rotating shaft A (358) and the transmission gear A (417) to reciprocate through the transmission belt (416), so that the plurality of rotations drive the mounting block (224) and the atomizing nozzle (226) to reciprocate relative to the mounting seat (34) along with the rotating tube (221), so that the plurality of atomizing nozzles (226) all perform oscillating spraying to reduce dust.

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