Rapid ventilation and dust reduction device for tunnel engineering

Abstract

The utility model relates to a tunnel engineering rapid ventilation and dust fall device which comprises a fixing frame, an air guide barrel is installed at the bottom of the middle of the fixing frame, an air guide fan is fixedly installed in an inner cavity of the air guide barrel, water spraying pipes are evenly and fixedly arranged on the right side of the air guide fan, and a dustproof filter plate is fixedly arranged on the left side of the air guide fan. A cleaning plate is slidably arranged on one side of the dustproof filter plate, a first telescopic air guide pipe is fixedly connected to the left end of the air guide barrel, a second telescopic air guide pipe is arranged at the right end of the air guide barrel, lead screws are rotatably arranged at the two ends of the fixing frame, and the top ends of the first telescopic air guide pipe and the second telescopic air guide pipe are slidably connected with the lead screws through moving blocks. Normal ventilation in the tunnel is guaranteed, when dust appears, the air guide barrel can spray water mist, meanwhile, the position of an air suction inlet is changed, waste gas or dust at different positions in the tunnel is sucked in, the dust in the gas is filtered, the tunnel ventilation and dust falling speed is increased, and the practicability of the tunnel ventilation and dust falling device is improved.

Description

Technical Field

[0001] The utility model relates to a rapid ventilation and dust reduction device for tunnel engineering, belonging to the technical field of tunnel engineering. Background Art

[0002] Tunnel construction ventilation is the key to tunnel construction and is a very important construction process; good ventilation is the prerequisite for ensuring the progress of tunnel construction, which can ensure the quality of air breathed by construction workers, protect the health of construction workers and improve work efficiency.

[0003] The utility model with patent number 201820413017.3 provides a ventilation and dust reduction device for the construction tunnel entrance. The ventilation and dust reduction device has a simple structure, a high degree of automation, is safe and reliable, and saves resources. It uses circulating water to achieve the effect of ventilation and dust reduction, and can effectively solve the dust problem at the tunnel entrance.

[0004] However, the current tunnel needs to keep moving forward during the construction process, and the air duct is fixed in the tunnel. When dust appears in the tunnel, it will spread rapidly due to the small space in the tunnel. The existing ventilation and dust reduction device only sucks a certain area around it through the air duct opening, and the dust reduction effect is slow, which affects the speed of ventilation and dust reduction in the tunnel project. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a rapid ventilation and dust reduction device for tunnel engineering to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A rapid ventilation and dust reduction device for tunnel engineering, comprising a fixed frame, an air guide tube is installed at the middle bottom of the fixed frame, an air guide fan is fixedly installed in the inner cavity of the air guide tube, a water spray pipe is evenly fixedly provided on the right side of the air guide fan, a dust filter plate is fixedly provided on the left side of the air guide fan, a cleaning plate is slidably provided on one side of the dust filter plate, a first telescopic air guide tube is fixedly connected to the left end of the air guide tube, a second telescopic air guide tube is provided at the right end of the air guide tube, screw rods are rotatably provided at both ends of the fixed frame, and the top ends of the first telescopic air guide tube and the second telescopic air guide tube are slidably connected to the screw rod through moving blocks.

[0008] Preferably, a mounting platform is fixedly provided at the bottom of the fixing frame, a mounting collar is fixedly provided at the outer side of the air guide tube, and the top of the mounting collar is rotatably connected to the mounting platform via a rotating shaft.

[0009] Preferably, a servo motor is fixedly mounted on the fixing frame, and gear rings are fixedly provided on the output shaft and the rotating shaft of the servo motor, and the gear rings are meshingly connected.

[0010] Preferably, atomizing nozzles are evenly fixed on the water spray pipe, and the atomizing nozzles are radially evenly distributed with the axis of the air guide tube as the center, a water guide pipe is fixedly connected to one side of the water spray pipe, an inclined baffle ring is fixedly provided on the inner wall of the air guide tube, and the inclined baffle ring is located on the left side of the water spray pipe.

[0011] Preferably, a dust box is fixedly provided at the bottom of the left end of the air guide tube, the dust box is located below the left side of the dust-proof filter plate, a cleaning cover is provided at the bottom of the dust box, and a cleaning nozzle is fixedly provided at the top of the dust-proof filter plate.

[0012] Preferably, an electric telescopic rod is fixedly mounted on the air guide tube, a movable end of the electric telescopic rod is connected to a cleaning plate, brushes are evenly fixedly arranged on the cleaning plate, and the brushes are in contact with the dustproof filter plate.

[0013] Preferably, a dust sensor is fixedly provided on the outer wall of the air guide tube, a connecting ring is fixedly provided on the left end of the second telescopic air guide tube, the right end of the air guide tube is embedded in the connecting ring, and a sealing ring is provided at the connection.

[0014] Preferably, a stepping motor is fixedly provided at one end of the screw rod, guide rods are fixedly provided at the bottom of both sides of the fixing frame, and both sides of the movable ends of the first telescopic air duct and the second telescopic air duct are slidably connected to the guide rods through guide blocks.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting up dust filter plates, during the construction of tunnel engineering, the gas in the tunnel is allowed to enter from the left end through the air guide tube, and the dust in the gas can be filtered through the dust filter plates, so as to prevent dust from polluting the external environment while achieving ventilation in the tunnel. In addition, the cleaning plate can clean the dust attached to the dust filter plates to prevent dust blockage from affecting the filtering and ventilation effects.

[0017] 2. By setting a second telescopic air duct, when there is no dust in the tunnel, the second telescopic air duct is connected to the air duct, so that the exhaust gas in the tunnel can be discharged through the exhaust pipe. When dust appears in the tunnel, the second telescopic air duct can be moved to the right to disconnect from the air duct, and at the same time, the water spray pipe sprays water mist, and the air duct can effectively spray water mist into the tunnel through the air duct, so as to speed up the dust reduction treatment of the tunnel;

[0018] 3. By setting up the first telescopic air duct, when the air duct is started, the left end of the first telescopic air duct can be moved to change the inlet position of the air intake of the air duct fan, thereby facilitating air intake at different positions in the tunnel, sucking in the exhaust gas or dust in the tunnel, further increasing the speed of tunnel ventilation and dust reduction, and improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of a rapid ventilation and dust reduction device for tunnel engineering of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of an air guide tube of a rapid ventilation and dust reduction device for tunnel engineering of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation of a fixing frame of a rapid ventilation and dust reduction device for tunnel engineering according to the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of a telescopic air guide pipe of a rapid ventilation and dust reduction device for tunnel engineering according to the utility model;

[0024] Numbers in the figure: 1. Fixed frame; 2. Air guide tube; 3. Air guide fan; 4. Water spray pipe; 5. Dust filter plate; 6. Cleaning plate; 7. First telescopic air guide duct; 8. Second telescopic air guide duct; 9. Screw; 10. Moving block; 11. Mounting table; 12. Mounting collar; 13. Rotating shaft; 14. Servo motor; 15. Gear ring; 16. Atomizing nozzle; 17. Tilt retaining ring; 18. Dust collection box; 19. Electric telescopic rod; 20. Connecting collar; 21. Stepper motor; 22. Guide rod. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a rapid ventilation and dust reduction device for tunnel engineering is provided.

[0027] Embodiment 1

[0028] like Figure 1-Figure 4As shown, a tunnel engineering rapid ventilation and dust reduction device according to an embodiment of the utility model comprises a fixed frame 1, an air guide tube 2 is installed at the middle bottom of the fixed frame 1, an air guide fan 3 is fixedly installed in the inner cavity of the air guide tube 2, a water spray pipe 4 is evenly fixedly arranged on the right side of the air guide fan 3, a dustproof filter plate 5 is fixedly arranged on the left side of the air guide fan 3, a cleaning plate 6 is slidably arranged on one side of the dustproof filter plate 5, a first telescopic air guide tube 7 is fixedly connected to the left end of the air guide tube 2, a second telescopic air guide tube 8 is arranged at the right end of the air guide tube 2, screw rods 9 are rotatably arranged at both ends of the fixed frame 1, and the tops of the first telescopic air guide tube 7 and the second telescopic air guide tube 8 are fixedly arranged. They are all slidably connected with the screw rod 9 through a moving block 10, a mounting platform 11 is fixedly provided at the bottom of the fixed frame 1, a mounting collar 12 is fixedly provided on the outer side of the air guide tube 2, and the top of the mounting collar 12 is rotatably connected to the mounting platform 11 through a rotating shaft 13, a servo motor 14 is fixedly installed on the fixed frame 1, a gear ring 15 is fixedly provided on the output shaft of the servo motor 14 and the rotating shaft 13, and the gear rings 15 are meshingly connected. When the air guide tube 2 sprays water mist for dust reduction, the rotating shaft 13 can be driven to rotate by the servo motor 14, thereby changing the direction of the water mist spraying of the air guide tube 2, and more comprehensively reducing dust in the tunnel.

[0029] Embodiment 2

[0030] like Figure 1-Figure 4As shown, a tunnel engineering rapid ventilation and dust reduction device according to an embodiment of the utility model comprises a fixed frame 1, an air guide tube 2 is installed at the middle bottom of the fixed frame 1, an air guide fan 3 is fixedly installed in the inner cavity of the air guide tube 2, a water spray pipe 4 is evenly fixed on the right side of the air guide fan 3, a dust filter plate 5 is fixedly provided on the left side of the air guide fan 3, a cleaning plate 6 is slidably provided on one side of the dust filter plate 5, a first telescopic air guide tube 7 is fixedly connected to the left end of the air guide tube 2, and a second telescopic air guide tube 7 is fixedly provided on the right end of the air guide tube 2 The air duct 8, the two ends of the fixing frame 1 are rotatably provided with screw rods 9, the tops of the first telescopic air duct 7 and the second telescopic air duct 8 are slidably connected to the screw rod 9 through the moving block 10, the water spray pipe 4 is evenly fixed with atomizing nozzles 16, and the atomizing nozzles 16 are evenly distributed radially with the axis of the air guide cylinder 2 as the center, one side of the water spray pipe 4 is fixedly connected with a water guide pipe, the inner wall of the air guide cylinder 2 is fixedly provided with an inclined baffle ring 17, and the inclined baffle ring 17 is located on the left side of the water spray pipe 4. When dust appears in the tunnel, The water spray pipe 4 is opened in time to spray water mist, and the air flow of the air guide fan 3 is dispersed in the tunnel, and the inclined baffle ring 17 can protect the atomizing nozzle 16 to prevent dust from adhering to it. A dust sensor is fixedly provided on the outer wall of the air guide tube 2, and a connecting collar 20 is fixedly provided on the left end of the second telescopic air guide tube 8. The right end of the air guide tube 2 is embedded in the connecting collar 20, and a sealing ring is provided at the connection. The dust sensor can detect the dust concentration in the tunnel in real time. A stepper motor 21 is fixedly provided at one end of the screw rod 9, and guide rods 22 are fixedly provided at the bottom of both sides of the fixed frame 1. Both sides of the moving ends of the first telescopic air guide tube 7 and the second telescopic air guide tube 8 are slidably connected to the guide rods 22 through guide blocks. When a large amount of dust appears, the stepper motor 21 can be turned on to rotate the screw rod 9, so that the connecting collar 20 can be separated from the right end of the air guide tube 2, and water mist can be sprayed for dust reduction. The guide rod 22 ensures the accuracy of the movement of the first telescopic air guide tube 7, ensuring that it can be connected to the right end of the air guide tube 2 after dust reduction.

[0031] Embodiment 3

[0032] like Figure 1-Figure 4As shown, a tunnel engineering rapid ventilation and dust reduction device according to an embodiment of the utility model comprises a fixed frame 1, an air guide tube 2 is installed at the middle bottom of the fixed frame 1, an air guide fan 3 is fixedly installed in the inner cavity of the air guide tube 2, a water spray pipe 4 is evenly fixedly arranged on the right side of the air guide fan 3, a dust filter plate 5 is fixedly arranged on the left side of the air guide fan 3, a cleaning plate 6 is slidably arranged on one side of the dust filter plate 5, a first telescopic air guide tube 7 is fixedly connected to the left end of the air guide tube 2, a second telescopic air guide tube 8 is arranged at the right end of the air guide tube 2, screw rods 9 are rotatably arranged at both ends of the fixed frame 1, the top ends of the first telescopic air guide tube 7 and the second telescopic air guide tube 8 are slidably connected to the screw rod 9 through a moving block 10, and the bottom of the left end of the air guide tube 2 A dust box 18 is fixedly provided on the bottom, and the dust box 18 is located at the lower left side of the dust filter plate 5. A cleaning cover is provided at the bottom of the dust box 18, and a cleaning nozzle is fixedly provided on the top of the dust filter plate 5. An electric telescopic rod 19 is fixedly installed on the air guide tube 2, and the movable end of the electric telescopic rod 19 is connected to the cleaning plate 6. Brushes are evenly fixed on the cleaning plate 6, and the brushes are in contact with the dust filter plate 5. When ventilation and dust reduction are performed, the electric telescopic rod 19 drives the cleaning plate 6 to move up and down, so as to clean the dust attached to the dust filter plate 5 and drop it into the dust box 18 below, so as to ensure the continuous filtering effect of the dust filter plate 5, and the dust box 18 is opened regularly for cleaning to improve its practicality.

[0033] In summary, with the help of the above-mentioned technical scheme of the utility model, during the construction of the tunnel project, this device allows the gas in the tunnel to enter from the first telescopic air duct 7 at the left end through the air duct 2, and discharges the exhaust gas in the tunnel from the second telescopic air duct 8 on the right. When dust appears in the tunnel, the second telescopic air duct 8 is moved to the right to disconnect from the air duct 2, and the water spray pipe 4 is allowed to spray water mist. The air guide fan 3 can effectively spray water mist into the tunnel to speed up the dust reduction treatment of the tunnel. At the same time, the left end of the first telescopic air duct 7 will also move to change the inlet position of the air intake of the air guide fan 3, thereby facilitating the suction of exhaust gas or dust at different positions in the tunnel, thereby increasing the speed of tunnel ventilation and dust reduction. When the exhaust gas or dust enters the air duct 2, the dust is first filtered through the dust filter plate 5, and the cleaning plate 6 can clean the dust attached to the dust filter plate 5 to avoid dust clogging affecting the filtering and ventilation effects.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid ventilation and dust reduction device for tunnel engineering, comprising a fixing frame (1), characterized in that: An air guide tube (2) is installed at the middle bottom of the fixed frame (1), an air guide fan (3) is fixedly installed in the inner cavity of the air guide tube (2), a water spray pipe (4) is evenly fixedly installed on the right side of the air guide fan (3), a dust filter plate (5) is fixedly installed on the left side of the air guide fan (3), a cleaning plate (6) is slidably installed on one side of the dust filter plate (5), a first telescopic air guide tube (7) is fixedly connected to the left end of the air guide tube (2), a second telescopic air guide tube (8) is installed at the right end of the air guide tube (2), screw rods (9) are rotatably installed at both ends of the fixed frame (1), and the top ends of the first telescopic air guide tube (7) and the second telescopic air guide tube (8) are slidably connected to the screw rod (9) through a moving block (10).

2. A tunnel engineering rapid ventilation and dust reduction device according to claim 1, characterized in that: A mounting platform (11) is fixedly provided at the bottom of the fixing frame (1), a mounting collar (12) is fixedly provided at the outside of the air guide tube (2), and the top of the mounting collar (12) is rotatably connected to the mounting platform (11) via a rotating shaft (13).

3. A tunnel engineering rapid ventilation and dust reduction device according to claim 2, characterized in that: A servo motor (14) is fixedly mounted on the fixed frame (1), and a gear ring (15) is fixedly mounted on the output shaft of the servo motor (14) and the rotating shaft (13), and the gear rings (15) are meshingly connected.

4. A tunnel engineering rapid ventilation and dust reduction device according to claim 3, characterized in that: Atomizing nozzles (16) are evenly fixedly provided on the water spray pipe (4), and the atomizing nozzles (16) are evenly distributed radially with the axis of the air guide tube (2) as the center of the circle; one side of the water spray pipe (4) is fixedly connected to a water guide tube; an inclined retaining ring (17) is fixedly provided on the inner wall of the air guide tube (2), and the inclined retaining ring (17) is located on the left side of the water spray pipe (4).

5. A tunnel engineering rapid ventilation and dust reduction device according to claim 4, characterized in that: A dust collecting box (18) is fixedly provided at the bottom of the left end of the air guide tube (2), and the dust collecting box (18) is located below the left side of the dustproof filter plate (5). A cleaning cover is provided at the bottom of the dust collecting box (18), and a cleaning nozzle is fixedly provided at the top of the dustproof filter plate (5).

6. A tunnel engineering rapid ventilation and dust reduction device according to claim 5, characterized in that: An electric telescopic rod (19) is fixedly mounted on the air guide tube (2), a movable end of the electric telescopic rod (19) is connected to a cleaning plate (6), brushes are evenly fixedly mounted on the cleaning plate (6), and the brushes are in contact with the dustproof filter plate (5).

7. A tunnel engineering rapid ventilation and dust reduction device according to claim 6, characterized in that: A dust sensor is fixedly provided on the outer wall of the air guide tube (2); a connecting ring (20) is fixedly provided on the left end of the second telescopic air guide tube (8); the right end of the air guide tube (2) is embedded in the connecting ring (20), and a sealing ring is provided at the connection.

8. The rapid ventilation and dust reduction device for tunnel engineering according to claim 7, characterized in that: A stepping motor (21) is fixedly provided at one end of the screw rod (9), guide rods (22) are fixedly provided at the bottom of both sides of the fixing frame (1), and both sides of the movable ends of the first telescopic air guide tube (7) and the second telescopic air guide tube (8) are slidably connected to the guide rods (22) via guide blocks.

Images