Dust removal device for water conservancy and hydropower tunnel excavation

Abstract

The utility model relates to water conservancy and hydropower tunnel excavation technical field, and disclose a kind of water conservancy and hydropower tunnel excavation dust removal device, including multiple groups of spray pipe, still including multiple groups of series hose and two groups of plugging, the outer surface of each group of spray pipe is all connected with atomizing nozzle by branch pipe, the outer surface of each group of spray pipe is all connected with two groups of flow guide pipe.The water conservancy and hydropower tunnel excavation dust removal device, by rotating limit bolt, the moving pair of extension rod along limit support is removed, then extension rod is moved along limit support, extension rod moves atomizing nozzle by spray pipe and branch pipe, atomizing nozzle is moved to the excavation position of water conservancy and hydropower tunnel after rotating limit bolt, limit bolt fixes extension rod with limit support, improve the convenience of device following water conservancy and hydropower tunnel excavation progress movement, strengthen the dust removal effect of device, to strengthen the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower tunnel excavation technology, specifically a dust removal device for water conservancy and hydropower tunnel excavation. Background Technology

[0002] During the excavation of hydropower tunnels, dust removal devices are needed to clean up the dust particles generated. Existing dust removal devices use water mist output from atomizing nozzles to settle and clean the dust particles generated during the excavation process. However, because the dust-generating end of the tunnel is constantly moving during excavation, and the device's location is relatively fixed, it is difficult for the device to move in time with the excavation progress, reducing the dust removal effect and thus affecting the device's practicality.

[0003] Based on this, this utility model designs a dust removal device for excavating water conservancy and hydropower tunnels to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a dust removal device for hydraulic and hydropower tunnel excavation, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dust removal device for excavating water conservancy and hydropower tunnels, comprising multiple sets of spray pipes, multiple sets of series hoses, and two sets of plugs. The outer surface of each set of spray pipes is connected to an atomizing nozzle via a branch pipe. The outer surface of each set of spray pipes is connected to two sets of guide pipes. Each set of series hoses is connected to a corresponding guide pipe. A liquid inlet tee is connected to the middle of the upper-middle section of the series hose. The inner wall of each set of plugs is screwed onto the outer surface of the corresponding guide pipe. Each set of spray pipes has an extension assembly at its rear end. Each set of extension assemblies includes an extension rod. A limit support is slidably mounted on the outer surface of each set of extension rods. A limit bolt is threaded through the outer surface of each set of limit supports. One end of each limit bolt inserted into the limit support is pressed against the outer surface of the corresponding extension rod. Two sets of guide supports are slidably mounted on the outer surface of each set of extension rods.

[0008] Preferably, each set of limiting supports and guide supports has two sets of mounting holes on its outer surface, and expansion bolts can be slidably inserted into the inner wall of each set of mounting holes.

[0009] Preferably, the inner walls of each set of limiting supports and guiding supports are interference-fitted with self-lubricating guide sleeves, and the inner walls of each set of self-lubricating guide sleeves are slidably fitted with the outer surface of the corresponding extension rod.

[0010] Preferably, the outer surface of each set of extension rods is provided with a reinforcing groove, and the inner end of each set of limiting bolts is pressed against the inner wall of the corresponding reinforcing groove.

[0011] Preferably, each set of guide supports has a limiting hole on its outer surface, a limiting pin is inserted into the inner wall of each set of limiting holes, and the outer surface of each set of limiting pins is slidably inserted into the inner wall of the corresponding reinforcing groove.

[0012] Preferably, each set of limiting bolts has an anti-loosening nut screwed onto its outer surface, and the outer end of each set of anti-loosening nuts abuts against the outer surface of the corresponding limiting support.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a dust removal device for hydraulic and hydropower tunnel excavation, which has the following beneficial effects:

[0015] 1. The dust removal device for excavating hydropower tunnels utilizes a rotating limiting bolt to release the extension rod from the moving joint of the limiting support. This allows the extension rod to move along the limiting support, and the extension rod, through the spray pipe and branch pipe, drives the atomizing nozzle. After the atomizing nozzle reaches the excavation position of the hydropower tunnel, rotating the limiting bolt fixes the extension rod to the limiting support. This improves the device's ease of movement in sync with the excavation progress of the hydropower tunnel, enhances the dust removal effect, and thus improves the device's practicality.

[0016] 2. The dust removal device for the excavation of this hydropower tunnel uses a series of flexible hoses to allow personnel to select the number of sprayers and installation points based on the excavation location. After the number of sprayers and installation points are selected, the device is fixed. During this process, the limiting support and guide support in the extension component are fixed to the inner wall of the hydropower tunnel. Then, with the cooperation of the diversion pipe, multiple sets of spray pipes are connected in series through the flexible hoses. Finally, the diversion pipes that are not connected to the series hoses are sealed by plugging, which effectively improves the adaptability of the device to different installation requirements, thereby enhancing the applicability of the device.

[0017] 3. The dust removal device for the excavation of this hydropower tunnel uses guide supports to allow the extension rod to move along two sets of guide supports during the device's adjustment process. The two sets of guide supports provide support for the extension rod at the positions on both sides of the limiting support. During this process, the gravity and offset stress on the device are transferred to the tunnel interior by the guide supports, reducing the stress on the limiting support and limiting bolt, while increasing the support area of ​​the extension rod, thereby enhancing the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structural extension component of this utility model.

[0021] In the diagram: 1. Spray pipe; 2. Branch pipe; 3. Atomizing nozzle; 4. Sealing; 5. Guide pipe; 6. Series hose; 7. Extension rod; 8. Limiting support; 9. Limiting bolt; 10. Liquid inlet tee; 11. Guide support; 12. Expansion bolt; 13. Self-lubricating guide sleeve; 14. Reinforcing groove; 15. Limiting pin; 16. Anti-loosening nut; 17. Extension assembly. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3This utility model provides a technical solution: a dust removal device for excavating water conservancy and hydropower tunnels, comprising multiple sets of spray pipes 1, multiple sets of series hoses 6, and two sets of plugs 4. The outer surface of each spray pipe 1 is connected to an atomizing nozzle 3 via a branch pipe 2. The outer surface of each spray pipe 1 is connected to two sets of guide pipes 5. Each series hose 6 is connected to a corresponding guide pipe 5. A liquid inlet tee 10 is connected to the middle of the upper-middle series hose 6. Through the series hoses 6, personnel select the number of sprayers and installation points according to the excavation location. After selecting the number of sprayers and installation points, the device is fixed. The limiting support 8 and guiding support 11 within the extension assembly 17 are fixed to the inner wall of the hydropower tunnel. Then, with the cooperation of the guide pipe 5, multiple sets of spray pipes 1 are connected in series via the series hose 6. Finally, the guide pipes 5 not connected to the series hose 6 are sealed by the plug 4, effectively improving the device's adaptability to different installation requirements and thus enhancing its applicability. The inner wall of each plug 4 is screwed to the outer surface of the corresponding guide pipe 5. Each spray pipe 1 has an extension assembly 17 at its rear end, and each extension assembly 17 includes an extension rod 7. The outer surface of each extension rod 7 is slidably fitted with a limited... Each set of limit supports 8 has a limit bolt 9 threaded through its outer surface. One end of each limit bolt 9 inserted into the limit support 8 abuts against the outer surface of the corresponding extension rod 7. By rotating the limit bolt 9, the extension rod 7 is released from the sliding joint along the limit support 8, and then the extension rod 7 moves along the limit support 8. The extension rod 7 drives the atomizing nozzle 3 to move through the spray pipe 1 and the branch pipe 2. After the atomizing nozzle 3 moves to the excavation position of the water conservancy and hydropower tunnel, the limit bolt 9 is rotated, and the limit bolt 9 fixes the extension rod 7 to the limit support 8. The lifting device moves with the excavation progress of the water conservancy and hydropower tunnel. The convenience of the device enhances its dust removal effect, thereby improving its practicality. Each set of extension rods 7 has two sets of guide supports 11 slidably mounted on its outer surface. Through the guide supports 11, the extension rods 7 move along the two sets of guide supports 11 during the device adjustment process. The two sets of guide supports 11 provide support for the extension rods 7 on both sides of the limiting support 8. During this process, the gravity and offset stress on the device are transferred to the tunnel interior by the guide supports 11, reducing the stress on the limiting support 8 and the limiting bolt 9, while increasing the support area of ​​the extension rods 7, thereby enhancing the practicality of the device.

[0024] In this utility model, in order to improve the convenience of the device installation process, two sets of mounting holes are provided on the outer side of each set of limiting supports 8 and guide supports 11. Expansion bolts 12 for fixing the device to the inner wall of the tunnel can be slidably inserted into the inner wall of each set of mounting holes, thereby improving the convenience of the device installation process.

[0025] In this utility model, in order to extend the effective service life of the extension rod 7, a self-lubricating guide sleeve 13 is installed on the inner wall of each set of limiting support 8 and guide support 11 to reduce the friction between them and the extension rod 7. The inner wall of each set of self-lubricating guide sleeve 13 is slidably fitted with the outer surface of the corresponding extension rod 7, thereby extending the effective service life of the extension rod 7.

[0026] In this utility model, in order to improve the stability of the device during operation, a reinforcing groove 14 is provided on the outer surface of each set of extension rods 7 to increase the contact area between the limiting bolt 9 and the reinforcing groove 14, thereby reducing the probability of the limiting bolt 9 loosening accidentally. The inner end of each set of limiting bolts 9 is pressed against the inner wall of the corresponding reinforcing groove 14, thereby improving the stability of the device during operation.

[0027] In this invention, in order to reduce the probability of the extension rod 7 disengaging from the guide support 11, a limiting hole is provided on the outer surface of each set of guide supports 11, and a limiting pin 15 for limiting the stroke of the extension rod 7 is inserted into the inner wall of each set of limiting holes. The outer surface of each set of limiting pins 15 is slidably inserted into the inner wall of the corresponding reinforcing groove 14, thereby reducing the probability of the extension rod 7 disengaging from the guide support 11.

[0028] In this utility model, in order to improve the stability of the device during operation, anti-loosening nuts 16 for applying preload are screwed onto the outer surface of each set of limit bolts 9, reducing the probability of uncontrollable loosening of the limit bolts 9. The outer end of each set of anti-loosening nuts is pressed against the outer surface of the corresponding limit support 8, thereby improving the stability of the device during operation.

[0029] In use, first select the number of sprayers and installation points according to the excavation location. After selecting the number of sprayers and installation points, fix the device. During this process, the limiting support 8 and the guide support 11 in the extension component 17 are fixed to the inner wall of the water conservancy and hydropower tunnel. Then, with the cooperation of the guide pipe 5, multiple sets of spray pipes 1 are connected in series through the series hose 6. Then, the guide pipe 5 that is not connected to the series hose 6 is sealed by the plug 4. After the device is installed, the external pipeline injects spray water into the series hose 6 through the liquid inlet tee pipe 10. Under pressure, the spray water in the series hose 6 enters the spray pipe 1 through the guide pipe 5. Under pressure, the spray water in the spray pipe 1 flows from the atomizing nozzle 3 through the branch pipe 2. The output end outputs water in a mist state. The sprayed water in the mist state combines with dust particles in the air and settles. When the excavation displacement of the water conservancy and hydropower tunnel moves out of the coverage area of ​​the device, the extension rod 7 is first released along the moving joint of the limiting support 8 by rotating the limiting bolt 9. Then, the extension rod 7 moves along the limiting support 8. The extension rod 7 drives the atomizing nozzle 3 to move through the spray pipe 1 and the branch pipe 2. After the atomizing nozzle 3 moves to the excavation position of the water conservancy and hydropower tunnel, the limiting bolt 9 is rotated to fix the extension rod 7 to the limiting support 8. During this process, the extension rod 7 moves along the two sets of guide supports 11. The two sets of guide supports 11 provide support for the extension rod 7 on both sides of the limiting support 8.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for excavating water conservancy and hydropower tunnels, comprising multiple sets of spray pipes (1), characterized in that: It also includes multiple sets of series hoses (6) and two sets of plugs (4). The outer surface of each set of spray pipes (1) is connected to an atomizing nozzle (3) through a branch pipe (2). The outer surface of each set of spray pipes (1) is connected to two sets of guide pipes (5). Each set of series hoses (6) is connected to the corresponding guide pipe (5). The middle part of the upper-middle series hoses (6) is connected to a liquid inlet tee pipe (10). The inner wall of each set of plugs (4) is screwed to the outer surface of the corresponding guide pipe (5). Each set of spray pipes (1) Each of the rear ends is provided with an extension component (17). Each set of extension components (17) includes an extension rod (7). The outer surface of each set of extension rods (7) is slidably fitted with a limit support (8). The outer surface of each set of limit supports (8) is threaded with a limit bolt (9). One end of each set of limit bolts (9) that passes into the limit support (8) is pressed against the outer surface of the corresponding extension rod (7). The outer surface of each set of extension rods (7) is slidably fitted with two sets of guide supports (11).

2. The dust removal device for excavating water conservancy and hydropower tunnels according to claim 1, characterized in that: Each set of limiting support (8) and guide support (11) has two sets of mounting holes on its outer side, and expansion bolts (12) can be slidably inserted into the inner wall of each set of mounting holes.

3. The dust removal device for excavating water conservancy and hydropower tunnels according to claim 1, characterized in that: Each set of limiting support (8) and guide support (11) has a self-lubricating guide sleeve (13) installed on its inner wall with an interference fit. The inner wall of each set of self-lubricating guide sleeve (13) is slidably fitted with the outer surface of the corresponding extension rod (7).

4. A dust removal device for excavating water conservancy and hydropower tunnels according to claim 1, characterized in that: Each set of extension rods (7) has a reinforcing groove (14) on its outer surface, and the inner end of each set of limiting bolts (9) is pressed against the inner wall of the corresponding reinforcing groove (14).

5. A dust removal device for excavating hydraulic and hydropower tunnels according to claim 4, characterized in that: Each set of guide supports (11) has a limiting hole on its outer surface, and a limiting pin (15) is inserted into the inner wall of each set of limiting holes. The outer surface of each set of limiting pins (15) is slidably inserted into the inner wall of the corresponding reinforcing groove (14).

6. A dust removal device for excavating water conservancy and hydropower tunnels according to claim 1, characterized in that: Each set of limiting bolts (9) has an anti-loosening nut (16) screwed onto its outer surface, and the outer end of each set of anti-loosening nuts is pressed against the outer surface of the corresponding limiting support (8).

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