A booth type vehicle-mounted dust removal system for small-section tunnel construction and a use method thereof
Patent Information
- Application Number
- CN202310875249.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-17
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2043-07-17
AI Technical Summary
但由于传统除尘车的工作空间属于开放式的空间，所以除尘效率与除尘时间相对较长，且灰尘容易扩散，为了实现新的健康安全标准，澳大利亚西部连接线工程的工程师提出了“隔间式除尘”的理念；利用一套充气支架来制造隔间，将开挖面与隧道的整体通风系统分开，但是其不方便移动，从而导致其灵活性不高
[0022]本发明通过充气式支架和过滤网在隧道的掌子面和除尘车之间形成一个相对的封闭空间，在封闭空间内的空气可以穿过过滤网自由流通，而灰尘被过滤网所截留，从而在封闭空间内除尘时，不会造成灰尘进一步扩散，大大增加了除尘车除尘效率，同时，相对的封闭空间会抑制粉尘进一步扩散，更有利于除尘车的除尘工作；且除尘结束后，通过收纳机构和夹紧机构可以对排气后的充气式支架进行收纳，方便快速；不仅保证了隔间式除尘的除尘效率同时还具备了除尘车本身良好的移动性和灵活性。
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Abstract
Description
Technical Field
[0001] This invention relates to the field of tunnel dust removal technology, specifically a compartmentalized vehicle-mounted dust removal system for small-section tunnel construction and its usage method. Background Technology
[0002] Drill-and-blast method is widely used in tunnel mining. However, the drilling, blasting, and shotcreting processes generate large amounts of dust, especially respirable dust which can be fatal to humans. Therefore, dust control during construction is of paramount importance.
[0003] Currently, most mainstream dust control methods both domestically and internationally rely on ventilation and spray dust removal, leading to the development of vehicle-mounted ventilation and spray dust removal systems. However, because traditional dust removal vehicles operate in an open space, their dust removal efficiency and time are relatively long, and dust is easily dispersed. To achieve new health and safety standards, engineers on the Western Australia Link project proposed the concept of "compartment-style dust removal." This involves using an inflatable support frame to create compartments that separate the excavation face from the overall tunnel ventilation system. However, this method is not easy to move, resulting in low flexibility. Summary of the Invention
[0004] The purpose of this invention is to provide a compartmentalized vehicle-mounted dust removal system for small-section tunnel construction, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A compartmentalized vehicle-mounted dust removal system for small-section tunnel construction includes a storage mechanism installed on the rear air intake pipe of a dust removal vehicle. An inflatable bracket is fixedly connected to the front end of the outer side of the storage mechanism, and a clamping mechanism is slidably connected to the rear end of the outer side of the storage mechanism. A baffle is provided on the outer side of the inflatable bracket. The inflatable bracket includes several intersecting and interconnected air columns, with a space formed between every four adjacent air columns. A filter screen is installed in each space, and snaps are provided at the four corners of each space. Two sets of traction straps are fixedly connected to two air columns in one space. A fixed half-ring is fixedly connected to one end of each set of traction straps, and a fastening rope is fixedly connected to the upper and lower ends of the outer side of each fixed half-ring. The snaps include a female buckle fixed to the air column and a female buckle that matches the female buckle.
[0007] As a further embodiment of the present invention: an exhaust valve and a check valve are respectively installed at one end of one of the air columns, one end of the check valve is fixedly connected to an inflation hose via a detachable connector, and one end of the inflation hose is fixedly connected to a blower.
[0008] As a further embodiment of the present invention: the air column consists of a base layer located on the inner side and a coating sprayed on the outer surface. The base layer is made of Oxford cloth, and the coating is made of PU coated fiberglass cloth. The thickness of the baffle is 5cm, and the baffle is made of silicone material.
[0009] As a further embodiment of the present invention: the storage mechanism includes a transmission tube and a storage tube fixed to the front end of the transmission tube and connected to the transmission tube. The front and rear ends of the outer side of the storage tube are fixedly connected with retaining rings, and a clamp is bolted to the outer side of the storage tube between the two retaining rings. The front and rear ends of the outer side of the transmission tube are respectively fixedly connected with a gear and a pulley assembly. A motor is installed at one end of the pulley assembly. Bearings are installed on the inner sides of both the transmission tube and the storage tube.
[0010] As a further embodiment of the present invention: the intake pipe passes through the inner side of the transmission pipe and the receiving pipe, and the transmission pipe and the receiving pipe are supported on the outer side of the intake pipe by bearings.
[0011] As a further embodiment of the present invention: the clamping mechanism includes a limiting plate and a plurality of cylinders fixed to the rear end of the limiting plate. The inner side of the limiting plate is provided with a plurality of strip-shaped grooves, and a rotating component is slidably connected to the front end of the inner side of the plurality of strip-shaped grooves. The front end of the rotating component is fixedly connected with a plurality of clamping plates, and the rear end of the cylinder is fixedly installed inside the dust removal vehicle.
[0012] As a further embodiment of the present invention: the rotating assembly includes a rotating ring, a gear ring is fixedly installed inside the rotating ring, and a plurality of connecting arms are fixedly connected to the outside of the rotating ring. One end of each connecting arm is rotatably connected to a swing arm, and one end of each swing arm is rotatably connected to a slide rod. The front end of the slide rod is provided with a threaded head, and a limit block is fixedly connected to the rear end of the slide rod.
[0013] As a further embodiment of the present invention: the sliding rod is slidably connected to the inner side of the corresponding strip groove, and the limiting block and the swing arm are respectively located on the front and rear sides of the corresponding strip groove, and the clamping piece is fixed on the swing arm.
[0014] As a further embodiment of the present invention: the gear ring is sleeved on the transmission tube, and the gear ring is matched with the gear.
[0015] On the other hand, a method for using a compartment-type vehicle-mounted dust removal system for small-section tunnel construction includes the following steps:
[0016] S1. First, the cross-sectional shape of the small-section tunnel is customized and processed to match the shape of the inflatable bracket after inflation, so that the shape of the inflatable bracket after inflation matches the cross-sectional shape of the small-section tunnel, and the inflatable bracket is installed on the storage mechanism.
[0017] S2. Then, drive the dust removal vehicle to the designated position inside the small cross-section tunnel, so that the air intake pipe faces the support surface of the small cross-section tunnel; then, turn on the motor. The motor drives the transmission pipe, gear, and collection pipe to rotate clockwise through the pulley set. The gear drives the gear ring to rotate clockwise. The gear ring drives the rotating ring and connecting arm to rotate clockwise together. The connecting arm pushes the swing arm. The swing arm drives the slide rod, limit block, and threaded head to move outward along the strip groove, so that the clamping plate also slides outward along the strip groove to the outside of the rotating ring, thereby loosening the air column wrapped around the collection pipe; next, turn on the cylinder. The cylinder retracts, driving the limit plate, rotating component, and clamping plate to move backward together, so that the gear and gear ring separate. At the same time, the clamping plate also leaves the outside of the collection pipe and reaches the outside of the transmission pipe. At this time, the motor continues to drive the transmission pipe and collection pipe to rotate together through the pulley set, thereby loosening the air column wrapped around the collection pipe;
[0018] S3. Embed the four corners of the filter screen into the corresponding female buckles, and then press the male buckles onto the female buckles to fix the filter screen onto the air column. Then, install the inflation hose onto the check valve through the detachable connector, turn on the blower, and the blower injects compressed air into the air column through the check valve. The air column inflates and expands, thus supporting it and fitting it with the cross-section of the small section tunnel, thereby forming a relatively closed space between the support surface and the inflatable bracket.
[0019] S4. After the dust removal vehicle is turned on, the gas in the enclosed space is drawn into the dust removal vehicle through the air intake pipe. The dust removal vehicle removes dust from the drawn-in air. The air in the enclosed space can pass through the filter screen freely, while the dust is trapped by the filter screen, thus removing dust in the enclosed space and preventing further spread of dust.
[0020] S5. After dust removal is completed, the compressed air in the air column is discharged through the exhaust valve, and the inflation hose is removed from the check valve. At the same time, the filter screen is removed from the air column. Similarly, the inflatable bracket can be stored through the storage mechanism and clamping mechanism. After the inflatable bracket is inflated, it can be moved to the next working surface by the dust removal vehicle.
[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0022] This invention creates a relatively enclosed space between the tunnel face and the dust removal vehicle using an inflatable support and a filter screen. Air within this enclosed space can freely circulate through the filter screen, while dust is trapped by it. This prevents further dust diffusion during dust removal within the enclosed space, significantly increasing the dust removal efficiency of the vehicle. Simultaneously, the relatively enclosed space inhibits further dust diffusion, further facilitating the dust removal operation. After dust removal, the inflatable support, after exhaust, can be easily and quickly stored away using a storage and clamping mechanism. This not only ensures the dust removal efficiency of the compartmentalized dust removal system but also maintains the excellent mobility and flexibility of the dust removal vehicle itself. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the installation of a compartment-type vehicle-mounted dust removal system and a dust removal vehicle used in small-section tunnel construction.
[0024] Figure 2 This is a schematic diagram of a compartment-type vehicle-mounted dust removal system for small-section tunnel construction and the operation of the dust removal vehicle without a filter screen during installation.
[0025] Figure 3 This is a schematic diagram of a compartmentalized vehicle-mounted dust removal system for small-section tunnel construction without a filter screen.
[0026] Figure 4 This is a schematic diagram of the storage mechanism and clamping mechanism in a compartment-type vehicle-mounted dust removal system used in small-section tunnel construction.
[0027] Figure 5 This is a partial structural diagram of an inflatable support frame used in a compartment-type vehicle-mounted dust removal system for small-section tunnel construction.
[0028] Figure 6 for Figure 5 A magnified structural diagram of part A in the middle;
[0029] Figure 7 This is a schematic diagram of the storage mechanism in a compartmentalized vehicle-mounted dust removal system used in small-section tunnel construction.
[0030] Figure 8 This is a schematic diagram of a clamping mechanism in a compartment-type vehicle-mounted dust removal system used in small-section tunnel construction.
[0031] Figure 9 This is a rear view schematic diagram of the clamping mechanism in a compartment-type vehicle-mounted dust removal system used in small-section tunnel construction.
[0032] Figure 10 This is a schematic diagram of the structure of a rotating component in a compartmentalized vehicle-mounted dust removal system used in small-section tunnel construction.
[0033] Figure 11 This is a schematic diagram of a compartmentalized vehicle-mounted dust removal system used in small-section tunnel construction and its operation in small-section tunnels.
[0034] In the diagram: 1. Dust removal vehicle; 2. Air inlet pipe; 3. Filter screen; 4. Storage mechanism; 41. Transmission pipe; 42. Storage pipe; 43. Bearing; 44. Retaining ring; 45. Clamp; 46. Gear; 47. Motor; 48. Pulley assembly; 5. Inflatable bracket; 51. Air column; 52. Fastening rope; 53. Fixed half ring; 54. Traction belt; 55. Female buckle; 56. Female buckle; 57. Exhaust valve; 58. Check valve; 59. Inflation hose; 50. Fan; 6. Clamping mechanism; 61. Limiting plate; 62. Cylinder; 63. Strip groove; 64. Rotating assembly; 641. Rotating ring; 642. Gear ring; 643. Swing arm; 644. Connecting arm; 645. Slide rod; 646. Limiting block; 647. Threaded head; 65. Clamping plate; 7. Baffle; 8. Small cross-section tunnel. Detailed Implementation
[0035] Please see Figures 1-11 In this embodiment of the invention, a compartment-type vehicle-mounted dust removal system for small-section tunnel construction includes a storage mechanism 4 installed on the rear air intake pipe 2 of a dust removal vehicle 1. An inflatable bracket 5 is fixedly connected to the front end of the outer side of the storage mechanism 4, and a clamping mechanism 6 is slidably connected to the rear end of the outer side of the storage mechanism 4. A baffle 7 is provided on the outer side of the inflatable bracket 5. The inflatable bracket 5 includes several horizontally and vertically intersecting and interconnected air columns 51. A space is formed between every four adjacent air columns 51. A filter screen 3 is installed in each space, and snaps are provided at the four corners of the space. Two sets of traction straps 54 are fixedly connected to two air columns 51 in one space. A fixed half-ring 53 is fixedly connected to one end of each set of traction straps 54. Each fixed half-ring 53 has a fastening rope 52 fixedly connected to the upper and lower ends of its outer side. First, the two fixed half-rings 53 are snapped onto the storage tube 42, and the fixed half-rings 53 are tied to the storage tube 42 by the fastening rope 52. Then, the fixed half-rings 53 are securely fixed to the storage tube 42 by the clamp 45. When the air column 51 is inflated or stored, the inflatable bracket 5 will not deviate. The snap includes a female snap 56 fixed on the air column 51 and a female snap 55 that matches the female snap 56. The filter screen 3 is fixed to the air column 51 by the female snap 55 and the female snap 56, so that air can pass freely through the gap, while dust is trapped by the filter screen 3. The filter screen 3 can be removed from the inflatable bracket 5 by pulling the female snap 55 off the female snap 56.
[0036] exist Figure 5 and Figure 6In this structure, an exhaust valve 57 and a check valve 58 are installed at one end of one of the air columns 51. One end of the check valve 58 is fixedly connected to an inflation hose 59 via a detachable connector. The other end of the inflation hose 59 is fixedly connected to a blower 50. When inflation is required, the inflation hose 59 is installed on the check valve 58 via the detachable connector, and compressed air is injected into the air column 51 by the blower 50. The air column 51 inflates, thus supporting the structure. The outer contour of the inflated air column 51 matches the cross-sectional shape of the small-section tunnel 8. After dust removal is completed, the exhaust valve 57 is opened to allow the air column 51 to expand. The air inside is expelled for easy subsequent storage. The air column 51 consists of an inner base layer and a coating sprayed on the outer surface. The base layer is made of Oxford cloth, and the coating is made of PU coated fiberglass cloth, which makes the air column 51 lightweight and flexible. It can fit well with the surrounding rock of the tunnel under the support of the air column 51. It also has flame-retardant, wear-resistant, puncture-proof and cut-proof properties. The baffle 7 is 5cm thick and made of silicone. When the inflatable support 5 is unfolded, the air column 51 can fit tightly with the surrounding rock under the support, ensuring the airtightness of the compartment.
[0037] The inflatable support 5 can be customized according to construction needs, so that its shape after inflation matches the cross-sectional shape of the small cross-section tunnel 8. Therefore, it is only necessary to replace the inflatable support 5 with different specifications to adapt to the cross-sectional shape of most existing small cross-section tunnels 8.
[0038] exist Figure 3 , Figure 4 and Figure 7 In the middle, the storage mechanism 4 includes a transmission tube 41 and a storage tube 42 fixed to the front end of the transmission tube 41 and connected to the transmission tube 41. Retaining rings 44 are fixedly connected to the front and rear ends of the outer side of the storage tube 42, and a clamp 45 is bolted between the two retaining rings 44 on the outer side of the storage tube 42. Gears 46 and a pulley set 48 are fixedly connected to the front and rear ends of the outer side of the transmission tube 41, respectively. A motor 47 is installed at one end of the pulley set 48. Bearings 43 are installed on the inner sides of both the transmission tube 41 and the storage tube 42. When the air column 51 is wound, the air column 51 is wound around the air column 51. Two retaining rings 44 can limit the air column 51, ensuring that the air column 51 is wrapped around the receiving tube 42. The air inlet pipe 2 passes through the inner side of the transmission pipe 41 and the receiving tube 42, and the transmission pipe 41 and the receiving tube 42 are supported on the outer side of the air inlet pipe 2 by the bearing 43. The motor 47 drives the pulley group 48 to rotate, and the pulley group 48 drives the transmission pipe 41 and the receiving tube 42 to rotate together around the air inlet pipe 2. Since the fixed half ring 53 is fixed by the clamp 45, the air column 51 after degassing can be wrapped around the receiving tube 42.
[0039] exist Figure 8 , Figure 9 and Figure 10In the clamping mechanism 6, a limiting plate 61 and several cylinders 62 fixed to the rear end of the limiting plate 61 are included. Several strip-shaped grooves 63 are formed on the inner side of the limiting plate 61, and a rotating assembly 64 is slidably connected to the front end of the inner side of the several strip-shaped grooves 63. Several clamping plates 65 are fixedly connected to the front end of the rotating assembly 64. The rear end of the cylinders 62 is fixedly installed inside the dust removal vehicle 1. The rotating assembly 64 includes a rotating ring 641, and a gear ring 642 is fixedly installed inside the rotating ring 641. Several connecting arms 644 are fixedly connected to the outer side of the rotating ring 641. One end of each connecting arm 644 is rotatably connected to a swing arm 643, and one end of each swing arm 643 is rotatably connected to a slide rod 645. The front end of the slide rod 645 is provided with a threaded head 647, and a limit block 646 is fixedly connected to the rear end of the slide rod 645. The slide rod 645 is slidably connected to the inner side of the corresponding strip groove 63, and the limit block 646 and the swing arm 643 are respectively located on the front and rear sides of the corresponding strip groove 63. The clamping plate 65 is fixed. In the swing arm 643, the gear ring 642 is fitted onto the transmission tube 41, and the gear ring 642 matches the gear 46. After the air column 51 is wound around the receiving tube 42, the cylinder 62 extends, driving the limiting plate 61, the rotating assembly 64, and the clamping plate 65 to move forward together, so that the gear ring 642 meshes with the gear 46. At the same time, the clamping plate 65 moves to the outside of the receiving tube 42. Then the motor 47 is started again. The motor 47 drives the transmission tube 41 and the gear 46 to rotate together through the pulley group 48. The gear 46 drives... The gear ring 642 rotates, which drives the rotating ring 641 and the connecting arm 644 to rotate together. The connecting arm 644 pulls the swing arm 643, which drives the slide rod 645, the limiting block 646 and the threaded head 647 to move together. Since the slide rod 645 can only slide in the strip groove 63, the clamping plate 65 also gathers along the strip groove 63 towards the center of the rotating ring 641. Then, the air column 51 wrapped on the storage tube 42 is clamped by several clamping plates 65 to prevent it from falling off.
[0040] A method for using a compartment-type vehicle-mounted dust removal system for small-section tunnel construction includes the following steps:
[0041] S1. First, the cross-sectional shape of the small cross-section tunnel 8 is customized and processed to match the shape of the inflatable bracket 5, so that the shape of the inflatable bracket 5 after inflation matches the cross-sectional shape of the small cross-section tunnel 8, and the inflatable bracket 5 is installed on the storage mechanism 4.
[0042] S2. Then, drive the dust removal vehicle 1 to the designated position inside the small cross-section tunnel 8, so that the air intake pipe 2 faces the support surface of the small cross-section tunnel 8; then, turn on the motor 47. The motor 47 drives the transmission pipe 41, gear 46 and receiving pipe 42 to rotate clockwise through the pulley group 48. The gear 46 drives the gear ring 642 to rotate clockwise. The gear ring 642 drives the rotating ring 641 and connecting arm 644 to rotate clockwise together. The connecting arm 644 pushes the swing arm 643. The swing arm 643 drives the slide rod 645, the limit block 646 and the threaded head 647 to move outward along the strip groove 63. This causes the clamping plate 65 to slide along the strip groove 63 to the outside of the rotating ring 641, thereby loosening the air column 51 wrapped around the storage tube 42; then, the cylinder 62 is opened, the cylinder 62 retracts, driving the limit plate 61, the rotating component 64 and the clamping plate 65 to move backward together, causing the gear 46 and the gear ring 642 to separate. At the same time, the clamping plate 65 also leaves the outside of the storage tube 42 and reaches the outside of the transmission tube 41. At this time, the motor 47 continues to drive the transmission tube 41 and the storage tube 42 to rotate together through the pulley group 48, thereby loosening the air column 51 wrapped around the storage tube 42.
[0043] S3. Embed the four corners of the filter screen 3 into the corresponding female buckle 56, and then press the male buckle 55 onto the female buckle 56 to fix the filter screen 3 onto the air column 51. Then, install the inflation hose 59 onto the check valve 58 through the detachable connector, turn on the blower 50, and the blower 50 injects compressed air into the air column 51 through the check valve 58. The air column 51 inflates and expands, thus supporting it and fitting with the cross-section of the small cross-section tunnel 8, thereby forming a relatively closed space between the support surface and the inflatable bracket 5.
[0044] S4. After the dust removal vehicle 1 is turned on, the gas in the enclosed space is drawn into the dust removal vehicle 1 through the air inlet pipe 2. The dust removal vehicle 1 removes dust from the drawn-in air. The air in the enclosed space can pass through the filter screen 3 and circulate freely, while the dust is trapped by the filter screen 3. Thus, the dust is removed in the enclosed space and will not cause the dust to spread further.
[0045] S5. After dust removal is completed, the compressed air in the air column 51 is discharged through the exhaust valve 57, and the inflation hose 59 is removed from the check valve 58. At the same time, the filter screen 3 is removed from the air column 51. Similarly, the inflatable bracket 5 can be stored through the storage mechanism 4 and the clamping mechanism 6. After the inflatable bracket 5 is inflated, it can be moved to the next working surface by the dust removal vehicle 1.
[0046] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A compartment-type vehicle-mounted dust removal system for small-section tunnel construction, comprising a storage mechanism installed on the rear air intake pipe of the dust removal vehicle, characterized in that, An inflatable support is fixedly connected to the front end of the outer side of the storage mechanism, and a clamping mechanism is slidably connected to the rear end of the outer side of the storage mechanism. A baffle is provided on the outer side of the inflatable support. The inflatable support includes several horizontally and vertically intersecting and interconnected air columns. A space is formed between every four adjacent air columns. A filter screen is installed in each space, and snaps are provided at the four corners of the space. Two sets of traction straps are fixedly connected to two air columns in one space. A fixed half-ring is fixedly connected to one end of each set of traction straps. A fastening rope is fixedly connected to the upper and lower ends of the outer side of each fixed half-ring. The snaps include a female buckle fixed to the air column and a female buckle that matches the female buckle. An exhaust valve and a check valve are respectively installed at one end of one of the air columns. An inflation hose is fixedly connected to one end of the check valve through a detachable connector. A blower is fixedly connected to one end of the inflation hose. The storage mechanism includes a transmission tube and a storage tube fixed to the front end of the transmission tube and connected to the transmission tube. Retaining rings are fixedly connected to both the front and rear ends of the outer side of the storage tube, and a clamp is bolted between the two retaining rings on the outer side of the storage tube. Gears and a pulley assembly are fixedly connected to the front and rear ends of the outer side of the transmission tube, respectively. A motor is installed at one end of the pulley assembly. Bearings are installed on the inner sides of both the transmission tube and the storage tube. The air intake pipe passes through the inner sides of both the transmission tube and the storage tube, and the transmission tube and the storage tube are supported on the outer side of the air intake pipe by bearings. The clamping mechanism includes a limiting plate and several cylinders fixed to the rear end of the limiting plate. Several strip-shaped grooves are opened on the inner side of the limiting plate, and a rotating component is slidably connected to the front end of the inner side of the several strip-shaped grooves. Several clamping plates are fixedly connected to the front end of the rotating component, and the rear end of the cylinder is fixedly installed inside the dust removal vehicle. The rotating assembly includes a rotating ring, inside which a gear ring is fixedly installed, and several connecting arms are fixedly connected to the outside of the rotating ring. One end of each connecting arm is rotatably connected to a swing arm, and one end of each swing arm is rotatably connected to a slide rod. The front end of the slide rod is provided with a threaded head, and a limit block is fixedly connected to the rear end of the slide rod. The slide rod is slidably connected through the inner side of a corresponding strip groove, and the limit block and the swing arm are respectively located on the front and rear sides of the corresponding strip groove. The clamping plate is fixed on the swing arm. The gear ring is sleeved on the transmission tube, and the gear ring matches the gear.
2. The compartment-type vehicle-mounted dust removal system for small-section tunnel construction according to claim 1, characterized in that, The air column consists of an inner base layer and a coating sprayed on the outer surface. The base layer is made of Oxford cloth, and the coating is made of PU-coated fiberglass cloth. The thickness of the baffle is 5cm, and the baffle is made of silicone.
3. A method for using a compartment-type vehicle-mounted dust removal system in small-section tunnel construction, employing the vehicle-mounted dust removal system as described in any one of claims 1-2, characterized in that... Includes the following steps: S1. First, the cross-sectional shape of the small-section tunnel is customized and processed to match the shape of the inflatable support. The shape of the inflatable support after inflation matches the cross-sectional shape of the small-section tunnel, and the inflatable support is installed on the storage mechanism. S2. Then, drive the dust removal vehicle to the designated position inside the small cross-section tunnel, so that the air intake pipe faces the support surface of the small cross-section tunnel; then, turn on the motor. The motor drives the transmission pipe, gear, and collection pipe to rotate clockwise through the pulley set. The gear drives the gear ring to rotate clockwise. The gear ring drives the rotating ring and connecting arm to rotate clockwise together. The connecting arm pushes the swing arm. The swing arm drives the slide rod, limit block, and threaded head to move outward along the strip groove, so that the clamping plate also slides outward along the strip groove to the outside of the rotating ring, thereby loosening the air column wrapped around the collection pipe; next, turn on the cylinder. The cylinder retracts, driving the limit plate, rotating component, and clamping plate to move backward together, so that the gear and gear ring separate. At the same time, the clamping plate also leaves the outside of the collection pipe and reaches the outside of the transmission pipe. At this time, the motor continues to drive the transmission pipe and collection pipe to rotate together through the pulley set, thereby loosening the air column wrapped around the collection pipe; S3. Embed the four corners of the filter screen into the corresponding female buckles, and then press the male buckles onto the female buckles to fix the filter screen onto the air column. Then, install the inflation hose onto the check valve through the detachable connector, turn on the blower, and the blower injects compressed air into the air column through the check valve. The air column inflates and expands, thus supporting it and fitting it with the cross-section of the small section tunnel, thereby forming a relatively closed space between the support surface and the inflatable bracket. S4. After the dust removal vehicle is turned on, the gas in the enclosed space is drawn into the dust removal vehicle through the air intake pipe. The dust removal vehicle removes dust from the drawn-in air. The air in the enclosed space can pass through the filter screen freely, while the dust is trapped by the filter screen, thus removing dust in the enclosed space and preventing further spread of dust. S5. After dust removal is completed, the compressed air in the air column is discharged through the exhaust valve, and the inflation hose is removed from the check valve. At the same time, the filter screen is removed from the air column. Similarly, the inflatable bracket can be stored through the storage mechanism and clamping mechanism. After the inflatable bracket is inflated, it can be moved to the next working surface by the dust removal vehicle.
Citation Information
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