Tunnel dust removal device

Abstract

The utility model belongs to tunnel engineering environmental protection equipment technical field, concretely relates to a tunnel dust collector, and the device includes support and dust removal mechanism, support is the arc structure of adapting with tunnel section, is formed the sliding slot by the arc main pipe and arc plate welding, and support is equipped with two kinds of fixed structure, can be fixed in the tunnel inner wall through fastener, also can remove along the tunnel length direction through the movement subassembly, adapts different dust removal scene, dust removal mechanism is the flexible structure, including the hose of conveying dust removal medium, interval arrangement's shower nozzle and sliding assembly, and sliding assembly is composed of the roller of connecting piece and inclined setting, can along the sliding slot sliding assembly. When assembling, dust removal mechanism is fixed through the fixing piece after sliding into the sliding slot, and when maintaining, can draw out dust removal mechanism by dismantling the fixing piece, need not to climb. The utility model is strong in adaptability, convenient to maintain, stable in sliding, simple in structure, can remove tunnel dust efficiently, is applicable to tunnel construction and operation stage.

Description

Technical Field

[0001] This utility model belongs to the technical field of environmental protection equipment for tunnel engineering, and specifically relates to a tunnel dust removal device. Background Technology

[0002] Dust generation occurs from a wide range of sources during tunnel construction and operation. During construction, blasting operations generate significant amounts of rock dust and other dust; friction between the tunnel boring machine's cutting tools and the rock mass, as well as material spillage during muck transportation, also release dust. Furthermore, the friction between the tires and the ground, along with the materials carried by the vehicles themselves, stirs up dust as they move through the tunnel. During operation, the continuous friction between the tires of passing vehicles and the ground, as well as debris falling from the tunnel walls due to weathering or vibration, also generate substantial amounts of dust.

[0003] These dust particles not only seriously threaten the respiratory health of workers inside the tunnel, causing respiratory diseases and other health problems, but also significantly reduce visibility inside the tunnel, increasing safety hazards during construction or passage and easily causing accidents such as collisions.

[0004] To control dust concentration inside tunnels, fixed spray dust suppression methods are commonly used in existing technologies. These fixed spray dust suppression devices are mostly directly fixed high up on the tunnel wall. Although they can achieve dust coverage and removal, when the spray components or other parts of the device need maintenance (such as cleaning clogged nozzles or replacing damaged parts), it is necessary to use climbing equipment to access the high-altitude components. This is not only cumbersome to operate and inefficient to maintain, but also poses safety risks for working at heights, causing many inconveniences for daily maintenance.

[0005] The methods described in this section are not necessarily methods that had been previously conceived or adopted. Unless otherwise specified, no method described in this section should be assumed to be prior art simply because it is included in this section. Similarly, unless otherwise specified, the issues mentioned in this section should not be considered to be accepted in any prior art. Utility Model Content

[0006] To address the problems of existing fixed spray dust suppression devices being inconvenient to operate and inefficient due to their fixed location at a high point in the tunnel, requiring the use of climbing equipment for maintenance, this utility model provides a tunnel dust suppression device that aims to achieve convenient disassembly and installation of the dust suppression mechanism, improve maintenance efficiency, and ensure that the device is compatible with the tunnel structure and operates stably.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A tunnel dust removal device includes a support frame and a dust removal mechanism; The support is an arc-shaped structure adapted to the tunnel cross section. The support includes two spaced arc-shaped main pipes and an arc-shaped plate welded to the outside of the two arc-shaped main pipes. A groove is formed between the arc-shaped plate and the arc-shaped main pipe. The dust removal mechanism is slidably assembled with the chute, and after assembly, the dust removal mechanism can be fixed to the bracket by a fastener to restrict sliding out. The support also has a fixing structure for cooperating with the tunnel. The fixing structure is a fastener for connecting with the inner wall of the tunnel, or a movable component located at the lower end of the support and capable of moving along the length of the tunnel.

[0008] Furthermore, in the fixed structure, the fasteners connected to the inner wall of the tunnel are bolts; The moving component is a track-mounted moving part or a wheel-mounted moving part.

[0009] Furthermore, the cross-section of the groove is "wide on both sides at the top and narrow on both sides at the bottom".

[0010] Furthermore, the dust removal mechanism is a flexible structure, comprising a flexible hose with toughness and strength and multiple nozzles spaced apart on the hose, and multiple sliding components spaced apart on the hose that slide in cooperation with the sliding groove.

[0011] Furthermore, the sliding assembly includes a connector detachably connected to the hose, and a plurality of rollers rotatably connected to the connector; The roller is used to slide in contact with the inner wall of the chute, and the roller is inclined, with the inclination angle adapted to the angle formed by the arc-shaped main pipe and the arc-shaped plate.

[0012] Furthermore, the number of rollers is four, and the four rollers are respectively located on the left and right sides of the connector, with the two rollers on each side being distributed back and forth at intervals along the tunnel length direction.

[0013] Furthermore, the connector includes a connecting frame and a connecting body; The connecting frame is provided with a receiving groove for inserting a hose, and the outer side of the connecting frame is also provided with a positioning hole that extends through the receiving groove, the positioning hole being used for the nozzle to pass through.

[0014] Furthermore, the connector includes a limiting part and a connecting part; The limiting part is used to insert into the receiving groove to restrict the hose from exiting the receiving groove. The connecting part is connected to the limiting part and is used to rotate with the roller.

[0015] Furthermore, both the limiting part and the connecting frame are provided with assembly holes, and the fixing member passes through the assembly holes of the limiting part and the connecting frame to realize the detachable connection between the connecting body and the connecting frame.

[0016] Furthermore, the fixing element used to restrict the dust removal mechanism from sliding out of the chute is a bolt, the arc plate is provided with a threaded hole, and at least one sliding component of the dust removal mechanism is provided with an insertion hole corresponding to the threaded hole. After the bolt is inserted into the insertion hole, it is threadedly connected to the threaded hole.

[0017] This utility model has at least the following beneficial effects: The support is highly adaptable to tunnels and flexible in its application scenarios: The support adopts an arc-shaped structure that is compatible with the tunnel cross-section, which can closely fit the contour of the tunnel inner wall and avoid problems such as unstable installation or dust removal blind spots caused by structural mismatch. At the same time, the support provides two fixing methods: it can be directly fixed to the inner wall of the tunnel with bolts to meet the dust removal needs of a fixed area, or it can be moved along the length of the tunnel through the lower moving components (such as track-type or wheel-type moving parts), which can adapt to the scenario of rotating dust removal in different areas during tunnel construction or operation, and has a wide range of applications.

[0018] Highly convenient to maintain and safe to operate: The dust removal mechanism and the support slide adopt a sliding assembly design. When it is necessary to maintain the nozzle or inspect the hose, the dust removal mechanism can be pulled out from one end of the slide by simply removing the fixing parts. There is no need to use climbing equipment to operate high-altitude components, which greatly reduces the difficulty of maintenance and the risk of climbing operations. At the same time, the sliding component and the hose are detachably connected. If the sliding component is damaged or the hose is partially damaged, the corresponding component can be disassembled and replaced separately without replacing the entire dust removal mechanism, further reducing maintenance costs and operation time.

[0019] Reliable sliding and fixing stability: The chute has a structure that is "wider on both sides at the top and narrower on both sides at the bottom," which can effectively constrain the dust removal mechanism, prevent it from coming off from non-end positions, and provide stable sliding guidance. The rollers of the sliding component are inclined, and their angle is adapted to the angle formed by the arc-shaped main pipe and the arc-shaped plate. This reduces sliding friction through multi-point contact with the inner wall of the chute, ensuring smooth and uninterrupted sliding of the dust removal mechanism, while also improving balance and stability during the sliding process. In addition, the dust removal mechanism is fixed to the threaded holes of the arc-shaped plate with bolts, and the connecting parts are fixed with bolts through the assembly holes. This can effectively avoid displacement or slippage caused by vibration or external forces in the tunnel, ensuring stability during use.

[0020] The structure is simple, easy to implement, and cost-controllable: the bracket is welded to two spaced arc-shaped main pipes and an outer arc plate. The component materials are readily available, the welding process is simple, and no complex processing equipment is required. The core of the dust removal mechanism is a flexible hose and spaced nozzles. The sliding component structure is simplified, the overall number of components is small, and the assembly difficulty is low, which is conducive to mass production and can effectively control production and manufacturing costs.

[0021] Comprehensive and efficient dust removal coverage: The dust removal mechanism uses a flexible hose with toughness and strength, which can be flexibly adapted to the direction of the arc-shaped support, and can fully cover the areas in the tunnel that need dust removal, avoiding dust removal dead spots caused by rigid structures; multiple nozzles set at intervals on the hose can atomize and spray the dust removal medium, increase the contact area between the dust removal medium and the dust, improve the dust capture and removal efficiency, and better meet the dust control needs during tunnel construction or operation. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of the tunnel dust removal device of this utility model; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 for Figure 2 Enlarged structural diagram at point B; Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the tunnel dust removal device of this utility model; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point C; Figure 6 This is a schematic diagram of the sliding component in one embodiment of the tunnel dust removal device of this utility model.

[0023] The meanings of the labels in the attached diagram are as follows: 1. Bracket 1, arc-shaped main pipe 11, arc-shaped plate 12, slide 13, dust removal mechanism 2, hose 21, nozzle 22, sliding assembly 23, connector 231, roller 232, connecting frame 2311, receiving groove 2311a, positioning hole 2311b, connecting body 2312, limiting part 2312a, connecting part 2312b, assembly hole 2313, threaded hole 121, insertion hole 233. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Reference Figures 1-6As shown, in this embodiment, the support 1 of the tunnel dust removal device is designed as an arc-shaped structure adapted to the tunnel cross-section. This design allows the support 1 to better fit the contour of the tunnel inner wall, ensuring the overall stability of the support 1 whether it is fixedly installed or moved for use. The support 1 mainly consists of two spaced arc-shaped main pipes 11 and arc-shaped plates 12 welded to the outside of the two arc-shaped main pipes 11. The arc-shaped main pipes 11 play the main supporting role, providing structural strength for the entire support 1. The arc-shaped plates 12 cooperate with the arc-shaped main pipes 11 to form a sliding groove 13 for the assembly of the dust removal mechanism 2. The existence of the sliding groove 13 is the key structural basis for realizing the sliding assembly and disassembly of the dust removal mechanism 2. In this embodiment, the bracket 1 is also provided with a fixing structure (not shown in the figure) for cooperating with the tunnel. The fixing structure has two different forms to adapt to different usage scenarios. One is a fastener for direct connection to the inner wall of the tunnel, such as a bolt. The fastener can stably fix the bracket 1 to a preset position on the inner wall of the tunnel, which is suitable for scenarios where the dust removal area in the tunnel is fixed and the dust removal position does not need to be frequently adjusted. The other is a moving component set at the lower end of the bracket 1 and capable of moving along the length of the tunnel, such as a track-type moving component or a wheel-type moving component. When different areas in the tunnel need to be dusted in turn, the moving component can drive the bracket 1 and the dust removal mechanism 2 to move along the length of the tunnel, flexibly adjusting the dust removal position. In other embodiments, the specific form of the fixing structure can be selected according to the actual construction or operation needs of the tunnel, as long as it can meet the requirements for stable installation or smooth movement of the bracket 1 in the tunnel.

[0026] In this embodiment, the cross-section of the chute 13 is "wider on both sides at the top and narrower on both sides at the bottom." This cross-sectional shape is naturally formed by the constraint between the arc-shaped plate 12 and the arc-shaped main pipe 11. This shape can stably constrain the dust removal mechanism 2, preventing it from detaching from other positions outside the end of the chute 13, and providing a stable sliding guide path for the dust removal mechanism 2. In other embodiments, the detailed dimensions of the cross-sectional shape of the chute 13 can be finely adjusted according to the specific structure of the dust removal mechanism 2.

[0027] In this embodiment, the dust removal mechanism 2 adopts a flexible structure design. The characteristic of a flexible structure is that it has a certain degree of deformability, which can well adapt to the orientation of the arc-shaped support 1, thereby ensuring that the dust removal mechanism 2 can fully cover the area that needs dust removal in the tunnel and avoid dust removal dead corners. The dust removal mechanism 2 mainly includes a flexible and strong hose 21, multiple nozzles 22 spaced apart on the hose 21, and multiple sliding components 23 spaced apart on the hose 21. The function of the hose 21 is to transport the dust removal medium, such as water or a special dust removal agent. Because the hose 21 has both toughness and strength, it can bend and adapt to the direction of the arc-shaped support 1, and can withstand the pressure generated during the transportation of the dust removal medium, thus avoiding damage to the hose 21 due to excessive pressure. The nozzles 22 are spaced on the hose 21. When the dust removal medium is transported to the nozzles 22 through the hose 21, it will be atomized and sprayed out through the nozzles 22. The atomized dust removal medium particles are smaller, and the contact area with the dust in the tunnel is larger, which can achieve more efficient dust removal. The sliding component 23 is spaced on the hose 21. Its main function is to form a sliding fit with the sliding groove 13 of the support 1, so that the dust removal mechanism 2 can be smoothly assembled or disassembled along the sliding groove 13, which provides convenience for the subsequent maintenance operation of the dust removal mechanism 2. In other embodiments, the spacing between the nozzles 22 and the sliding component 23 on the hose 21 can be reasonably adjusted according to the actual dust removal needs of the tunnel and the length of the support 1, as long as the dust removal effect and sliding stability are guaranteed.

[0028] In this embodiment, the sliding assembly 23 consists of a connector 231 and multiple rollers 232. The connector 231 and the hose 21 are detachably connected. The advantage of this connection method is that when the sliding assembly 23 is damaged and needs repair or replacement, it is not necessary to disassemble the entire dust removal mechanism 2. Only the connector 231 needs to be disassembled for maintenance. Similarly, if the hose 21 is partially damaged, the damaged section of the hose 21 can be replaced by disassembling the connector 231, effectively reducing maintenance costs and difficulty. The rollers 232 are rotatably connected to the connector 231. When the dust removal mechanism 2 slides in the slide groove 13, the rollers 232 will form sliding contact with the inner wall of the slide groove 13. The rotation of the rollers 232 can greatly reduce the friction between the two, making the sliding operation of the dust removal mechanism 2 smoother and less strenuous. In this embodiment, the roller 232 is inclined, and its inclination angle matches the angle formed by the arc-shaped main pipe 11 and the arc-shaped plate 12. This arrangement allows the roller 232 to form multiple points of contact with the inner wall of the chute 13. The multi-point contact structure can improve the stability of the dust removal mechanism 2 during the sliding process and reduce the occurrence of jamming or unilateral deviation. At the same time, the roller 232 is distributed on the left and right sides of the connector 231, and the roller 232 on each side is distributed back and forth at intervals along the tunnel length direction. This distribution method further enhances the overall balance and stability of the sliding assembly 23. In other embodiments, the number of rollers 232 can be adjusted according to the width of the chute 13 and the weight of the dust removal mechanism 2, as long as smooth sliding and structural stability can be ensured.

[0029] In this embodiment, the connector 231 consists of two parts: a connector frame 2311 and a connector body 2312. The connector frame 2311 has a receiving groove 2311a for the hose 21 to be inserted. The size of the receiving groove 2311a matches the outer diameter of the hose 21. When the hose 21 is inserted into the receiving groove 2311a, it can fit tightly with the connector frame 2311. On the outside of the connector frame 2311, a positioning hole 2311b is also provided, which extends through the receiving groove 2311a. The position of the positioning hole 2311b corresponds to the installation position of the nozzle 22 on the hose 21. When the hose 21 is inserted into the receiving groove 2311a, the nozzle 22 can pass through the positioning hole 2311b. The positioning hole 2311b not only provides a passage for the nozzle 22 to pass through, but also limits the position of the connector frame 2311 on the hose 21, preventing the sliding component 23 from sliding or shifting relative to the hose 21 during use. The connector 2312 includes a limiting part 2312a and a connecting part 2312b. The size of the limiting part 2312a is adapted to the receiving groove 2311a of the connector 2311. When the limiting part 2312a is inserted into the receiving groove 2311a, it can make close contact with the inner wall of the receiving groove 2311a, thereby preventing the hose 21 from exiting the receiving groove 2311a. The connecting part 2312b is integrated with the limiting part 2312a. Its main function is to provide installation support for the roller 232. The roller 232 is rotatably connected to the connecting part 2312b through components such as a rotating shaft, ensuring that the roller 232 can rotate flexibly. In other embodiments, the specific structural details of the connector 2311 and the connector 2312 can be adjusted according to the installation requirements of the hose 21 and the roller 232, as long as the corresponding fixing and connection functions can be achieved.

[0030] In this embodiment, in order to achieve reliable connection and convenient disassembly between the various parts of the connector 231, mounting holes 2313 are provided on both the limiting part 2312a and the connecting frame 2311 of the connector 231. The mounting holes 2313 on the limiting part 2312a and the mounting holes 2313 on the connecting frame 2311 are corresponding to each other. When it is necessary to fix the connector 2312 and the connecting frame 2311, it is only necessary to pass the fixing part (such as a bolt) through the corresponding mounting holes 2313 and then lock it with a nut or other component. This connection method is a detachable connection. If the sliding component 23 needs to be maintained in the future, it is only necessary to remove the fixing part to separate the connector 2312 and the connecting frame 2311. The operation is simple. Meanwhile, to prevent the dust removal mechanism 2 from sliding out of the slide groove 13 after assembly and during use, a threaded hole 121 is provided on the arc plate 12, and an insertion hole 233 corresponding to the position of the threaded hole 121 is provided on at least one sliding component 23 of the dust removal mechanism 2. When the dust removal mechanism 2 slides along the slide groove 13 to the preset dust removal position, a fastener (such as a bolt) is inserted into the insertion hole 233 of the sliding component 23, and then the bolt is threadedly connected to the threaded hole 121 on the arc plate 12 and locked. In this way, the dust removal mechanism 2 can be stably fixed on the bracket 1, effectively preventing the dust removal mechanism 2 from sliding out of the slide groove 13 due to vibration or other external forces caused by vehicles passing through the tunnel during use. In other embodiments, the specific type of fastener can be selected according to the actual fixing strength requirements, as long as the reliability of the connection can be guaranteed.

[0031] When using the tunnel dust removal device of this embodiment, the form of the support 1 fixing structure needs to be selected according to the actual use requirements of the tunnel. If the dust removal area in the tunnel is fixed and there is no need to adjust the dust removal position, the support 1 is fixed to the preset position on the inner wall of the tunnel using fasteners. If different areas in the tunnel need to be dusted in turn, a moving component is installed at the lower end of the support 1. Next, the dust removal mechanism 2 is assembled. First, the hose 21 is inserted into the receiving groove 2311a of the connecting frame 2311, ensuring that the nozzle 22 on the hose 21 can accurately pass through the positioning hole 2311b of the connecting frame 2311. Then, the limiting part 2312a of the connecting body 2312 is inserted into the receiving groove 2311a. The limiting part 2312a is aligned with the assembly hole 2313 on the connecting frame 2311. The fastener is passed through the assembly hole 2313 and locked to complete the assembly of the sliding component 23 and the hose 21. Then, align the sliding component 23 of the assembled dust removal mechanism 2 with one end of the slide groove 13 of the bracket 1, and gently push the hose 21 to make the roller 232 on the sliding component 23 slide along the inner wall of the slide groove 13 until the dust removal mechanism 2 completely covers the area that needs dust removal. Finally, insert the fixing piece into the insertion hole 233 of the sliding component 23 of the dust removal mechanism 2, and thread it into the threaded hole 121 on the arc plate 12 to lock it in place, thus completing the fixing of the dust removal mechanism 2. When dust removal is required, the dust removal medium is delivered into the hose 21. The dust removal medium is delivered to each nozzle 22 through the hose 21, atomized, and sprayed out to contact the dust in the tunnel to remove the dust. When the dust removal mechanism 2 needs maintenance, first unscrew the fixing piece that fixes the dust removal mechanism 2, and then pull the dust removal mechanism 2 out from one end of the slide groove 13 to clean or replace the nozzle 22 or to inspect and maintain the hose 21. After maintenance, slide the dust removal mechanism 2 back to its original position along the slide groove 13 and fix it again with the fixing piece.

[0032] In summary, the tunnel dust removal device in this embodiment, through the design of both the arc-shaped structure and the fixed structure of the support 1, allows the device to adapt well to the tunnel cross-section and meet the needs of both fixed and mobile dust removal scenarios. The cooperative design of the sliding groove 13 and the sliding component 23 enables the sliding assembly and disassembly of the dust removal mechanism 2, greatly simplifying maintenance operations. Maintenance can be completed without the need for climbing equipment, improving maintenance efficiency and safety. The inclined rollers 232 and multiple fixing structures ensure the smoothness of the sliding process and the stability of the dust removal mechanism 2 during use, effectively preventing displacement or slippage. The overall structural design is reasonable and highly practical, providing reliable protection for dust control during tunnel construction or operation.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A tunnel dust removal device, characterized in that, Includes support frame and dust removal mechanism; The support is an arc-shaped structure adapted to the tunnel cross section. The support includes two spaced arc-shaped main pipes and an arc-shaped plate welded to the outside of the two arc-shaped main pipes. A groove is formed between the arc-shaped plate and the arc-shaped main pipe. The dust removal mechanism is slidably assembled with the chute, and after assembly, the dust removal mechanism can be fixed to the bracket by a fastener to restrict sliding out. The support also has a fixing structure for cooperating with the tunnel. The fixing structure is a fastener for connecting with the inner wall of the tunnel, or a movable component located at the lower end of the support and capable of moving along the length of the tunnel.

2. The tunnel dust removal device according to claim 1, characterized in that, In the fixed structure, the fasteners connected to the inner wall of the tunnel are bolts; The moving component is a track-mounted moving part or a wheel-mounted moving part.

3. The tunnel dust removal device according to claim 1, characterized in that, The cross-section of the groove is "wider on both sides at the top and narrower on both sides at the bottom".

4. The tunnel dust removal device according to claim 1, characterized in that, The dust removal mechanism is a flexible structure, which includes a flexible hose with toughness and strength and multiple nozzles spaced apart on the hose. The hose is also spaced apart with multiple sliding components that slide in conjunction with the sliding groove.

5. The tunnel dust removal device according to claim 4, characterized in that, The sliding assembly includes a connector detachably connected to the hose, and a plurality of rollers rotatably connected to the connector; The roller is used to slide in contact with the inner wall of the chute, and the roller is inclined, with the inclination angle adapted to the angle formed by the arc-shaped main pipe and the arc-shaped plate.

6. The tunnel dust removal device according to claim 5, characterized in that, The number of rollers is four, and the four rollers are respectively located on the left and right sides of the connector, with the two rollers on each side being distributed back and forth at intervals along the tunnel length direction.

7. The tunnel dust removal device according to claim 5, characterized in that, The connector includes a connecting frame and a connecting body; The connecting frame is provided with a receiving groove for inserting a hose, and the outer side of the connecting frame is also provided with a positioning hole that extends through the receiving groove, the positioning hole being used for the nozzle to pass through.

8. The tunnel dust removal device according to claim 7, characterized in that, The connector includes a limiting part and a connecting part; The limiting part is used to insert into the receiving groove to restrict the hose from exiting the receiving groove. The connecting part is connected to the limiting part and is used to rotate with the roller.

9. The tunnel dust removal device according to claim 8, characterized in that, Both the limiting part and the connecting frame are provided with assembly holes, and the fixing member passes through the assembly holes of the limiting part and the connecting frame to realize the detachable connection between the connecting body and the connecting frame.

10. The tunnel dust removal device according to claim 1, characterized in that, The fixing component used to restrict the dust removal mechanism from sliding out of the chute is a bolt. The arc plate is provided with a threaded hole. At least one sliding component of the dust removal mechanism is provided with an insertion hole corresponding to the threaded hole. After the bolt is inserted into the insertion hole, it is threadedly connected to the threaded hole.

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