CN221742686U - A kind of atomization dust suppression device for tunnel - Google Patents

Abstract

The utility model relates to an atomization dust fall device for a tunnel, which comprises a movable frame, wherein a lifting frame is arranged on the movable frame, an arc-shaped pipe is arranged on the lifting frame, a plurality of atomization spray heads are arranged on the arc-shaped pipe, and a water delivery assembly for supplying water to the atomization spray heads is arranged on the movable frame; the utility model has the following effects: according to the height of tunnel, utilize crane adjustment arc pipe to go up and down, promote to remove the frame and remove, the water delivery subassembly is carried water and is given the arc pipe, spouts through atomizer at last to this can realize spraying dust fall to the tunnel of different height.

Description

A kind of atomization dust suppression device for tunnel

Technical Field

The utility model relates to tunnel construction equipment, in particular to an atomization dust reduction device used in tunnels.

Background Art

The number of tunnels under construction is gradually increasing, and the quality requirements for tunnel construction are becoming more and more stringent. However, whether the drilling and blasting method or the full-section method is used for construction, a large amount of dust will be generated. Especially when the drilling and blasting method is used for tunnel excavation, a large amount of toxic and harmful gases will be easily generated in the area near the subgrade surface after blasting or during support operations, which seriously endangers the health of tunnel construction workers. At present, most of the existing tunnel construction dust reduction measures use ventilation as the main method and water spray as the auxiliary method, resulting in a long waiting time for dust reduction. Some dust still remains in the air, and rapid dust reduction cannot be achieved. The environmental requirements of tunnel construction cannot be met, which affects the progress of tunnel construction.

The Chinese patent with the authorization announcement number CN214287276U discloses an automatic spray dust suppression device, including a water tank, the top of the left side of the water tank is connected to a disinfectant adding pipe, the left side of the top of the water tank is connected to a water adding pipe, the right side of the top of the water tank is movably connected to a fog machine, and the right side of the bottom of the fog machine is connected to the water tank through a hose. By setting a positioning mechanism, the clean water poured into the water tank is filtered to prevent impurities in the clean water inside the water tank from clogging the hose, and then by setting a transmission mechanism, the fog machine is rotated left and right.

Regarding the automatic spray dust reduction device mentioned above, after long-term use, when the tunnel height is high, the fog machine can only swing left and right, and the dust at a higher place cannot be reduced.

Utility Model Content

In order to improve the problem that a fog machine cannot reduce dust at higher places, the utility model provides an atomization dust reduction device for a tunnel.

The utility model provides an atomization dust reduction device for tunnels, which adopts the following technical solutions:

The invention discloses an atomizing dust suppression device for a tunnel, comprising a mobile frame, a lifting frame being provided on the mobile frame, an arc tube being provided on the lifting frame, a plurality of atomizing nozzles being provided on the arc tube, and a water supply component for supplying water to the atomizing nozzles being provided on the mobile frame.

In a specific feasible implementation scheme, the lifting frame includes a limiting tube arranged on the moving frame, an electric push rod is arranged inside the limiting tube, a lifting rod is arranged on the end wall of the extension and retraction rod of the electric push rod, one end of the lifting rod is located in the limiting tube, and the other end extends out of the limiting tube and extends to the side away from the moving frame, and the arc tube is arranged at the end of the lifting rod.

According to the height of the tunnel, the lifting rod is pushed up by an electric push rod, so that the height of the arc tube can be adjusted, thereby realizing spray dust reduction in tunnels of different heights.

In a specific feasible implementation scheme, a lifting platform is provided at the end of the lifting rod, a rotating platform is rotatably provided on the lifting platform, the rotating platform is rotatably set on the lifting platform through a pin shaft, a driven gear is provided at one end of the pin shaft, a fixed motor is provided on the lifting platform, a driving gear is coaxially provided on the motor shaft of the fixed motor, and the axis of the fixed motor is parallel to the axis of the lifting rod.

In a specific possible implementation scheme, in order to improve the rotation stability of the rotating table, a sliding block is provided on the rotating table, and an arc groove for the sliding block to move is provided on the lifting platform.

In a specific implementation scheme, a rotating shaft is provided on the arc tube, a driving motor is provided on the rotating platform, a motor shaft of the driving motor is coaxially connected with the rotating shaft, and an axis of the driving motor is parallel to an axis of the lifting rod.

When spraying, according to the dust situation in the tunnel, the driving motor is used to drive the rotating shaft to rotate, thereby driving the arc tube to rotate. At the same time, the fixed motor is used to drive the driving gear and the driven gear to rotate, and then drive the pin shaft and the rotating table to rotate. In this way, spray dust reduction can be achieved in the tunnel from multiple angles, thereby improving the dust reduction effect.

In a specific possible implementation scheme, a ring plate is provided on the rotating shaft, a ring groove for the ring plate to rotate is provided on the moving platform, and a bearing is provided between the ring plate and the groove wall of the ring groove.

The ring plate rotates in the ring groove, so the rotation stability of the arc tube can be improved.

In a specific feasible implementation scheme, the water delivery assembly includes a water tank arranged on a mobile frame, a water pump is provided on the water tank, the water tank and the water pump are connected by a delivery pipe, a water outlet of the water pump is provided with a water outlet hose, and the end of the water outlet hose away from the water pump is connected to the inner cavity of the arc tube.

The water in the water tank is transported along the delivery pipe to the water outlet hose through the water pump, and then transported to the arc pipe, and finally sprayed out by the atomizing nozzle.

In a specific possible implementation mode, a bracket is provided on the water tank, a rotating drum around which a water outlet hose is wound is provided on the bracket, and a power motor for driving the rotating drum to rotate is provided on the bracket.

When the lifting rod is rising, the water outlet hose is stored by using the rotating cylinder to prevent the water outlet hose from falling to the ground and being easily damaged.

The utility model has the following beneficial technical effects: according to the height of the tunnel, the lifting frame is used to adjust the lifting of the arc tube, the moving frame is pushed to move, the water delivery component delivers water to the arc tube, and finally sprays it out through the atomizing nozzle, so that spray dust reduction can be achieved in tunnels of different heights.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an atomizing dust suppression device for use in a tunnel according to an embodiment of the utility model.

FIG. 2 is a cross-sectional view showing the interior of the limit tube.

FIG. 3 is an enlarged view of portion A in FIG. 2 .

FIG. 4 is a cross-sectional view showing a water delivery assembly.

Explanation of the reference numerals in the accompanying drawings: 1. movable frame; 2. lifting frame; 3. arc tube; 4. atomizing nozzle; 5. water delivery assembly; 6. limit tube; 7. electric push rod; 8. lifting rod; 9. lifting platform; 10. rotating platform; 11. pin shaft; 12. driven gear; 13. fixed motor; 14. driving gear; 15. sliding block; 16. arc groove; 17. rotating shaft; 18. driving motor; 19. ring plate; 20. ring groove; 21. bearing; 22. water tank; 23. water pump; 24. delivery pipe; 25. water outlet hose; 26. bracket; 27. rotating cylinder; 28. power motor.

DETAILED DESCRIPTION

The utility model is further described in detail below in conjunction with Figures 1-4.

The utility model embodiment discloses an atomization dust reduction device for a tunnel.

Referring to Figure 1, an atomizing dust reduction device for a tunnel includes a mobile frame 1, a lifting frame 2 is provided on the mobile frame 1, a rotating frame is provided on the lifting frame 2, an arc tube 3 is provided on the rotating frame, a power component for driving the arc tube 3 to rotate is provided on the rotating frame, a plurality of atomizing nozzles 4 are provided on the arc tube 3, and a water supply component 5 for supplying water to the atomizing nozzle 4 is provided on the mobile frame 1.

The mobile frame 1 includes a mobile platform and a plurality of rollers arranged on the bottom wall of the mobile platform. In other embodiments, a motor can be installed on the mobile platform, and the motor drives the rollers to rotate to realize automatic movement of the mobile frame 1.

Referring to Figure 2, the lifting frame 2 includes a limiting tube 6 arranged on the mobile platform. The limiting tube 6 is vertically arranged. An electric push rod 7 is arranged in the limiting tube 6. The axis of the electric push rod 7 is colinear with the axis of the limiting tube 6. A lifting rod 8 is arranged on the extension and retraction rod end wall of the electric push rod 7. One end of the lifting rod 8 is located in the limiting tube 6, and the other end extends out of the limiting tube 6 and extends to the side away from the mobile frame 1. One end of the lifting rod 8 extends out of the limiting tube 6 and is connected to the rotating frame.

2 and 3 , the rotating frame includes a lifting platform 9 arranged at the end of the lifting rod 8. The lifting platform 9 is C-shaped in this embodiment, and can also be V-shaped in other embodiments. A rotating platform 10 is rotatably provided on the lifting platform 9. The rotating platform 10 is rotatably provided on the lifting platform 9 through a pin shaft 11. The axis of the pin shaft 11 is perpendicular to the axis of the lifting rod 8. A driven gear 12 is provided at one end of the pin shaft 11 passing through the side wall of the lifting platform 9. A fixed motor 13 is provided on the lifting platform 9. A driving gear 14 is coaxially provided on the motor shaft of the fixed motor 13. The driving gear 14 is meshed with the driven gear 12. The axis of the fixed motor 13 is parallel to the axis of the lifting rod 8.

A sliding block 15 is rotatably provided on one side of the rotating platform 10 close to the pin shaft 11 . In other embodiments, the sliding block 15 may be a roller. An arc groove 16 for the sliding block 15 to move is provided on the inner side wall of the lifting platform 9 .

A rotating shaft 17 is provided on the arc tube 3 and at its rotation center, and a driving motor 18 is provided on the rotating platform 10. The axis of the driving motor 18 is parallel to the axis of the lifting rod 8. The motor shaft of the driving motor 18 is coaxially connected to the rotating shaft 17, and the axis of the driving motor 18 is parallel to the axis of the lifting rod 8.

3 , a ring plate 19 is disposed on the rotating shaft 17 , the axis of the ring plate 19 is colinear with the axis of the rotating shaft 17 , a ring groove 20 for the ring plate 19 to rotate is disposed on the movable platform, and a bearing 21 is disposed between the ring plate 19 and the groove wall of the ring groove 20 .

4 , the water delivery assembly 5 includes a water tank 22 disposed on a mobile platform, a water pump 23 being disposed on the water tank 22, a water outlet of the water tank 22 and a water inlet of the water pump 23 being connected via a delivery pipe 24, a water outlet of the water pump 23 being provided with a water outlet hose 25, the water outlet of the water pump 23 being connected to the outlet of the water pump 23 via a rotary joint, an end of the water outlet hose 25 away from the water pump 23 being connected to the inner cavity of the arc tube 3, in the present embodiment, the position where the water outlet hose 25 is connected to the arc tube 3 is close to the side of the rotating shaft 17, and in other embodiments, the water outlet hose 25 is disposed on the end surface of the arc tube 3.

A bracket 26 is provided on the water tank 22, and a rotating cylinder 27 is rotatably provided on the bracket 26. The end of the water outlet hose 15 away from the rotary joint passes through the rotating cylinder 27, then passes through the rotating cylinder 27 and is coiled around the peripheral wall of the rotating cylinder 27. The axis of the rotating cylinder 27 is perpendicular to the axis of the lifting rod 8. A power motor 28 for driving the rotating cylinder 27 to rotate is provided on the bracket 26.

The implementation principle of the atomizing dust suppression device for tunnels according to the embodiment of the utility model is as follows: when spraying dust suppression on the tunnel, the moving frame 1 is pushed, and according to the height of the tunnel, the electric push rod 7 drives the lifting rod 8 to rise, and the power motor 28 unwinds the water outlet hose 25 at the same time, and moves the arc tube 3 to the side close to the top wall in the tunnel, and the water pump 23 transports the water in the water tank 22 to the arc tube 3 along the water outlet hose 25, and the atomizing nozzle 4 sprays the water, and the fixed motor 13 drives the driving gear 14 and the driven gear 12 to rotate, and then drives the rotating platform 10 to rotate, so that the arc tube 3 can be driven to swing, and the driving motor 18 is used to drive the arc tube 3 to rotate, so that the arc tube 3 can be driven to rotate, so that the dust suppression can be sprayed at multiple angles, which is beneficial to improving the dust suppression effect.

The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. An atomizing dust suppression device for a tunnel, characterized in that it comprises a mobile frame (1), a lifting frame (2) is provided on the mobile frame (1), an arc tube (3) is provided on the lifting frame (2), a plurality of atomizing nozzles (4) are provided on the arc tube (3), and a water supply component (5) for supplying water to the atomizing nozzles (4) is provided on the mobile frame (1). 2. An atomizing dust suppression device for a tunnel according to claim 1, characterized in that: the lifting frame (2) includes a limiting tube (6) arranged on the moving frame (1), an electric push rod (7) is arranged in the limiting tube (6), and a lifting rod (8) is arranged on the lifting and retracting rod end wall of the electric push rod (7), one end of the lifting rod (8) is located in the limiting tube (6), and the other end extends out of the limiting tube (6) and extends to a side away from the moving frame (1), and the arc tube (3) is arranged at the end of the lifting rod (8). 3. An atomizing dust suppression device for a tunnel according to claim 2, characterized in that: a lifting platform (9) is provided at the end of the lifting rod (8), a rotating platform (10) is rotatably provided on the lifting platform (9), the rotating platform (10) is rotatably set on the lifting platform (9) through a pin shaft (11), a driven gear (12) is provided at one end of the pin shaft (11), a fixed motor (13) is provided on the lifting platform (9), a motor shaft of the fixed motor (13) is coaxially provided with a driving gear (14) meshing with the driven gear (12), and the axis of the fixed motor (13) is parallel to the axis of the lifting rod (8). 4. The atomizing dust suppression device for tunnels according to claim 3, characterized in that: a sliding block (15) is provided on the rotating platform (10), and an arc groove (16) for the sliding block (15) to move is provided on the lifting platform (9). 5. The atomizing dust suppression device for a tunnel according to claim 3, characterized in that: a rotating shaft (17) is provided on the arc tube (3), a driving motor (18) is provided on the rotating platform (10), a motor shaft of the driving motor (18) is coaxially connected to the rotating shaft (17), and an axis of the driving motor (18) is parallel to an axis of the lifting rod (8). 6. An atomizing dust suppression device for tunnels according to claim 5, characterized in that: a ring plate (19) is provided on the rotating shaft (17), a ring groove (20) for the ring plate (19) to rotate is provided on the moving platform, and a bearing (21) is provided between the ring plate (19) and the groove wall of the ring groove (20). 7. An atomizing dust suppression device for a tunnel according to claim 1, characterized in that: the water delivery component (5) comprises a water tank (22) arranged on the mobile frame (1), the water tank (22) is provided with a water pump (23), the water tank (22) and the water pump (23) are connected by a delivery pipe (24), the water outlet of the water pump (23) is provided with a water outlet hose (25), and the end of the water outlet hose (25) away from the water pump (23) is connected to the inner cavity of the arc tube (3). 8. An atomizing dust suppression device for tunnels according to claim 7, characterized in that: a bracket (26) is provided on the water tank (22), a rotating cylinder (27) on which a water outlet hose (25) is wound is provided on the bracket (26), and a power motor (28) for driving the rotating cylinder (27) to rotate is provided on the bracket (26).