Movable graded water curtain spraying dust removal device for tunnel construction

Abstract

The utility model relates to the technical field of tunnel dust fall, and discloses a movable graded water curtain spraying dust removal device for tunnel construction, which comprises two supporting plates, the tops of the two supporting plates are fixedly connected with an annular cover, and the left side and the right side of the bottom of the annular cover are fixedly connected with water inlet pipes. A front side water pipe is fixedly connected to the front sides of the tops of the two water inlet pipes, a middle side water pipe is fixedly connected to the middle sides of the tops of the two water inlet pipes, a rear side water pipe is fixedly connected to the rear sides of the tops of the two water inlet pipes, and a plurality of water conveying pipes are fixedly connected to the bottoms of the front side water pipe, the middle side water pipe and the rear side water pipe. According to the utility model, the front side water pipe, the middle side water pipe and the rear side water pipe can realize the water curtain effect that the water quantity in front, middle and rear is decreased progressively, the dust falling effect is improved, and meanwhile, the fan blades are driven to rotate by water flow, so that the rotating sleeve and the atomizing nozzle can rotate, and the dust falling effect can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel dust reduction, in particular to a movable graded water curtain spray dust removal device for tunnel construction. Background Art

[0002] As an underground building structure, tunnels are widely used in transportation, water conservancy, municipal administration and military fields. They usually have a large cross-section, a flat shape, and need to be equipped with ventilation, lighting and other facilities. Due to its semi-enclosed nature, the ventilation conditions in the tunnel are poor, and various pollutants are easily accumulated. Among them, the smoke emissions from diesel engines, the exhaust gas generated by car driving and the dust caused by friction are particularly serious. During the tunnel construction process, especially the blasting and shotcrete spraying processes, a large amount of dust will be generated. If these dusts are not controlled, they will pose a great threat to the health of workers. Respirable dust with a diameter of less than 5μm can penetrate deep into the alveoli. Workers who are exposed to this environment for a long time are at risk of occupational diseases such as silicosis and pneumoconiosis. Therefore, the control of dust in the tunnel is particularly important. It is not only related to the physical health of construction workers, but also a necessary measure for construction safety and environmental protection.

[0003] After searching, the Chinese patent document announcement number is: CN217107108U. This utility model belongs to the field of tunnel construction, and specifically discloses a dust removal and dust reduction device used in tunnel construction, including a mobile trolley, a bracket is installed on the top of the trolley, an exhaust fan is installed on the top of the bracket, each air inlet hood is connected to the suction end of the exhaust fan through an air duct, and the output end of the exhaust fan is downward and connected to the air outlet hood; the mobile trolley is provided with a water tank with an open top surface in the bracket, and a filter cartridge is detachably installed in the center of the water tank and is placed directly below the air outlet hood, and a spray dust reduction component is arranged in the water tank. The utility model utilizes the cooperation of the exhaust fan and the spray dust reduction component, in the form of a combination of exhaust and spraying, first introduces the airflow with dust into the water tank, and then sprays and reduces dust, which can not only recycle the water after spraying, but also use the filter cartridge to filter the sewage and recycle it, saving water resources, and at the same time can effectively prevent wastewater from accumulating on the ground and affecting subsequent construction, and the dust reduction effect is good.

[0004] Although the above patent mentioned in the specification that "the utility model utilizes the cooperation of the exhaust fan and the spray dust reduction component, in the form of a combination of exhaust and spraying, first directs the dust-laden airflow into the water tank, and then sprays for dust reduction, which can not only recycle the water after spraying, but also use the filter cartridge to filter the sewage and recycle it, saving water resources, and at the same time can effectively prevent the wastewater from accumulating on the ground and affecting subsequent construction, and the dust reduction effect is good", but some existing dust removal devices for tunnel construction cannot achieve all-round dust reduction inside the tunnel. Therefore, in view of the above shortcomings, a movable graded water curtain spray dust removal device for tunnel construction is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a movable graded water curtain spray dust removal device for tunnel construction, aiming to improve the problem that some spray dust removal devices for tunnel construction in the prior art cannot achieve all-round dust reduction inside the tunnel.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A movable graded water curtain spray dust removal device for tunnel construction comprises two support plates, the tops of the two support plates are fixedly connected with annular covers, the bottom left and right sides of the annular cover are fixedly connected with water inlet pipes, the front sides of the tops of the two water inlet pipes are fixedly connected with front water pipes, the middle sides of the tops of the two water inlet pipes are fixedly connected with middle water pipes, the rear sides of the tops of the two water inlet pipes are fixedly connected with rear water pipes, the bottoms of the front water pipes, the middle water pipes and the rear water pipes are fixedly connected with a plurality of water delivery pipes, the bottoms of the plurality of water delivery pipes are fixedly connected with sealing rings, the outsides of the plurality of sealing rings are rotatably connected with rotating sleeves, the insides of the plurality of rotating sleeves are fixedly connected with fixed frames, the tops of the plurality of fixed frames are fixedly connected with fan blades, the bottoms of the plurality of rotating sleeves are fixedly connected with delivery pipes, the bottoms of the plurality of delivery pipes are fixedly connected with atomizing nozzles, and the bottoms of the two support plates are provided with sensor control components.

[0008] Furthermore, the sensor control component includes a plurality of connecting plates, the left and right sides of the plurality of connecting plates are respectively fixedly connected to the adjacent sides of the two support plates, the front and rear sides of the plurality of connecting plates are fixedly connected with inclined baffles, the bottoms of three of the inclined baffles are fixedly connected with fixed sleeves, the bottom of one of the fixed sleeves is fixedly connected with a tilt sensor, the bottom of one of the fixed sleeves is fixedly connected with a dust concentration sensor, and the bottom of another of the fixed sleeves is fixedly connected with an electronic controller.

[0009] Furthermore, the support plate and the connecting plate are fixedly connected to the bottom with a plurality of sleeves, the interiors of the plurality of sleeves are provided with springs, the interiors of the plurality of sleeves are slidably connected to limiting plates, the bottoms of the plurality of limiting plates are fixedly connected to fixing columns, the bottoms of the plurality of fixing columns are fixedly connected to a fixing frame 1, the interior of the fixing frame 1 is slidably connected with a plurality of sliding rods, the tops of the plurality of sliding rods are fixedly connected to limiting plates, the top of the fixing frame 1 is fixedly connected with a plurality of dampers, the bottoms of the plurality of sliding rods are fixedly connected to a connecting frame, and a driving assembly is provided at the bottom of the connecting frame.

[0010] Furthermore, the driving assembly includes two double-headed motors, the tops of the two double-headed motors are fixedly connected to the bottom of the connecting frame, the output ends of the two double-headed motors are fixedly connected to drive shafts, the four corners of the bottom of the connecting frame are fixedly connected to a fixed frame 2, the left and right sides of the two drive shafts are fixedly connected to rotating wheels, the left and right sides of the top of the connecting frame are fixedly connected to hydraulic cylinders, and the output ends of the two hydraulic cylinders are fixedly connected to push rods.

[0011] Furthermore, the outside of the water pipe is rotatably connected to the inside of the rotating sleeve.

[0012] Furthermore, one end of the spring is fixedly connected to the inner top side of the sleeve, and the other end of the spring is fixedly connected to the top of the limiting plate.

[0013] Furthermore, the outside of the fixing column is slidably connected to the inside of the sleeve, and the top of the push rod is fixedly connected to the bottom of the fixing frame.

[0014] Furthermore, the outside of the driving shaft is rotatably connected to the inside of the second fixing frame, and the top of the damper is fixedly connected to the bottom of the connecting plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, a water curtain effect with decreasing water volume in the front, middle and rear parts can be achieved through the front water pipe, the middle water pipe and the rear water pipe, thereby improving the dust reduction effect. At the same time, the fan blades are driven to rotate by the water flow, and then the rotating sleeve and the atomizing nozzle are rotated, thereby further expanding the water mist spraying range, thereby greatly improving the dust reduction effect.

[0017] 2. In the utility model, the impact on the tunnel ground during movement can be effectively reduced by means of compression and rebound of the spring and by means of the damper. The lifting and lowering of the device is achieved by driving the push rod with the help of a hydraulic cylinder, so that the annular cover can be closely attached to the inner wall of the tunnel, thereby being able to adapt to road surfaces of different heights inside the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a movable graded water curtain spray dust removal device for tunnel construction proposed by the utility model;

[0019] Figure 2 This is a rear water pipe diagram of a movable graded water curtain spray dust removal device for tunnel construction proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of a rotating sleeve of a movable graded water curtain spray dust removal device for tunnel construction proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the sliding rod structure of a movable graded water curtain spray dust removal device for tunnel construction proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the damper structure of a movable graded water curtain spray dust removal device for tunnel construction proposed by the utility model;

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Support plate; 2. Annular cover; 3. Water inlet pipe; 4. Front water pipe; 5. Middle water pipe; 6. Rear water pipe; 7. Water delivery pipe; 8. Sealing ring; 9. Rotating sleeve; 10. Fixed frame; 11. Fan blade; 12. Delivery pipe; 13. Atomizing nozzle; 14. Connecting plate; 15. Tilt baffle; 16. Fixed sleeve; 17. Tilt sensor; 18. Dust concentration sensor; 19. Electronic controller; 20. Sleeve; 21. Spring; 22. Limiting plate; 23. Fixed column; 24. Fixed frame one; 25. Sliding rod; 26. Limiting plate; 27. Damper; 28. Connecting frame; 29. ​​Double-headed motor; 30. Driving shaft; 31. Fixed frame two; 32. Rotating wheel; 33. Hydraulic cylinder; 34. Push rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1 - Figure 3, The utility model provides an embodiment: a movable graded water curtain spray dust removal device for tunnel construction, comprising two support plates 1. The support plate 1, as the basis of the entire device, has sufficient strength and stability to bear the weight of the upper structure. The tops of the two support plates 1 are fixedly connected with an annular cover 2, which is used to protect the internal water pipes and other structures from external physical damage, such as gravel, dust, etc. The bottom left and right sides of the annular cover 2 are fixedly connected with water inlet pipes 3. The front sides of the tops of the two water inlet pipes 3 are fixedly connected with front water pipes 4. The middle sides of the tops of the two water inlet pipes 3 are fixedly connected with middle water pipes 5. The rear sides of the tops of the two water inlet pipes 3 are fixedly connected with rear water pipes 6. The bottoms of the front water pipes 4, the middle water pipes 5 and the rear water pipes 6 are fixedly connected with a plurality of water pipes 7. The water inlet pipe 3 is responsible for transporting water to the water pipes 7 in different places. They are divided into three parts: front, middle and rear according to their different positions, so as to realize graded dust reduction of dust inside the tunnel. A water curtain effect is formed with decreasing water volume at the front, middle and rear. The bottoms of multiple water pipes 7 are fixedly connected with sealing rings 8, which play the role of closing and guiding water flow. The outer parts of multiple sealing rings 8 are rotatably connected with rotating sleeves 9, and the outer parts of water pipes 7 are rotatably connected to the inside of rotating sleeves 9. The number of water pipes 7 fixed at the bottoms of front water pipes 4, middle water pipes 5 and rear water pipes 6 decreases successively, so that graded dust reduction can be achieved. The interiors of multiple rotating sleeves 9 are fixedly connected with fixing frames 10, and rotating sleeves 9 allow water pipes 7 to rotate, so as to adjust the direction of water spraying. The tops of multiple fixing frames 10 are fixedly connected with fan blades 11, which rotate under the action of water flow, thereby driving rotating sleeves 9 to rotate. The bottoms of multiple rotating sleeves 9 are fixedly connected with delivery pipes 12, and the bottoms of multiple delivery pipes 12 are fixedly connected with atomizing nozzles 13. Atomizing nozzles 13 are the part that actually generates water mist, which is used to reduce dust in the air. Sensor control components are arranged at the bottoms of the two support plates 1.

[0028] Reference Figure 1 , Figure 4 and Figure 5 The sensing control component includes a plurality of connecting plates 14, the left and right sides of the plurality of connecting plates 14 are respectively fixedly connected to the adjacent sides of the two supporting plates 1, and the front and rear sides of the plurality of connecting plates 14 are fixedly connected with inclined baffles 15. The inclined baffles 15 designed here are not only used to protect the bottom structure, but also can help to improve the dust reduction effect. The bottoms of the three inclined baffles 15 are fixedly connected with fixed sleeves 16, the bottom of one of the fixed sleeves 16 is fixedly connected with a tilt sensor 17, the bottom of one of the fixed sleeves 16 is fixedly connected with a dust concentration sensor 18, and the bottom of the other fixed sleeve 16 is fixedly connected with an electronic controller 19. Through the joint work of the above sensors, the status of the device is monitored and automatically adjusted to adapt to different working environments.

[0029] Reference Figure 4 - Figure 6 The bottom of the support plate 1 and the connecting plate 14 are fixedly connected with a plurality of sleeves 20, and a spring 21 is arranged inside the plurality of sleeves 20, one end of the spring 21 is fixedly connected to the inner top side of the sleeve 20, and the other end of the spring 21 is fixedly connected to the top of the limit plate 22. The design here can realize the buffering and shock absorbing effect by means of the compression and rebound of the spring 21, can absorb the unevenness of the road surface, and keep the level and stability of the main body of the device. The interior of the plurality of sleeves 20 is slidably connected to the limit plate 22. The limit plate 22 is designed here to limit the fixed column 2 3 displacement, the bottoms of the plurality of limit plates 22 are fixedly connected with fixed columns 23, the outside of the fixed columns 23 are slidably connected to the inside of the sleeve 20, the bottoms of the plurality of fixed columns 23 are fixedly connected with a fixed frame 24, the inside of the fixed frame 24 is slidably connected with a plurality of sliding rods 25, the tops of the plurality of sliding rods 25 are fixedly connected with a limit plate 26, the sliding rods 25 and the limit plate 26 are designed here to effectively adapt to and cooperate with the lifting and lowering of the fixed frame 24, the top of the fixed frame 24 is fixedly connected with a plurality of dampers 27, the top of the damper 27 The damper 27 is fixedly connected to the bottom of the connecting plate 14. The damper 27 is designed here to adapt to the compression and rebound of the spring 21. The bottom of the plurality of sliding rods 25 is fixedly connected to a connecting frame 28. A driving assembly is arranged at the bottom of the connecting frame 28. The driving assembly includes two double-headed motors 29. The tops of the two double-headed motors 29 are fixedly connected to the bottom of the connecting frame 28. The output ends of the two double-headed motors 29 are fixedly connected to a driving shaft 30. The four corners of the bottom of the connecting frame 28 are fixedly connected to a fixed frame 21. The external rotation of the driving shaft 30 is connected to the fixed frame 21. Inside the fixed frame 2 31 , the left and right sides of the two driving shafts 30 are fixedly connected with rotating wheels 32. The design here is to drive the driving shafts 30 to rotate through the double-headed motor 29, which can then drive the rotating wheels 32 to rotate, and then the movement of the device can be realized. The left and right sides of the top of the connecting frame 28 are fixedly connected with hydraulic cylinders 33. The output ends of the two hydraulic cylinders 33 are fixedly connected with push rods 34. The top of the push rods 34 are fixedly connected to the bottom of the fixed frame 1 24. The design here is to realize the lifting and lowering of the fixed frame 1 24 through the hydraulic cylinders 33 and the push rods 34.

[0030] Working principle: When it is necessary to reduce dust inside the tunnel, the double-headed motor 29 can be used to drive the drive shaft 30 to rotate, and then the rotating wheel 32 can be driven to rotate, so that the movement of the device can be realized. With the help of the rotating wheel 32, it can adapt to the terrain inside the tunnel more flexibly. At this time, the hydraulic cylinder 33 can be started to drive the push rod 34 to move, and then the fixed frame 24 can be moved, so that the annular cover 2 can be close to the inner wall of the tunnel, and then the water source can be connected to the water inlet pipe 3, and then the water can be transported to the inside of the water inlet pipe 3, and then enter the inside of the front water pipe 4, the middle water pipe 5 and the rear water pipe 6. At this time, the water will enter the inside of the rotating sleeve 9 through the water pipe 7, and the fan blades 11 can be affected. The water flow impact causes rotation, which in turn drives the fixed frame 10 to rotate, thereby driving the rotating sleeve 9 to rotate. At this time, the atomizing nozzle 13 rotates with the rotating sleeve 9, so that the water can be fully sprayed out, so that the spraying range is larger, and then the different numbers of atomizing nozzles 13 connected to the bottom of the front water pipe 4, the middle water pipe 5 and the rear water pipe 6 are used to form a graded water curtain, so that step-by-step dust reduction can be formed, thereby greatly improving the dust reduction efficiency, and then the rotating wheel 32 can be driven to rotate, which can drive the device to move. When subjected to bumps and impacts, the limit plate 22 can slide inside the sleeve 20, and then the spring 21 can be compressed and rebounded, and at the same time, the damper 27 can be used to adapt to different road conditions.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 movable graded water curtain spray dust removal device for tunnel construction, comprising two support plates (1), characterized in that: The tops of the two support plates (1) are fixedly connected with an annular cover (2), the bottom left and right sides of the annular cover (2) are fixedly connected with a water inlet pipe (3), the front sides of the tops of the two water inlet pipes (3) are fixedly connected with a front water pipe (4), the middle sides of the tops of the two water inlet pipes (3) are fixedly connected with a middle water pipe (5), the rear sides of the tops of the two water inlet pipes (3) are fixedly connected with a rear water pipe (6), and the bottoms of the front water pipe (4), the middle water pipe (5) and the rear water pipe (6) are fixedly connected with a plurality of water delivery pipes (7). The bottoms of the plurality of water delivery pipes (7) are fixedly connected to sealing rings (8), the outsides of the plurality of sealing rings (8) are rotatably connected to rotating sleeves (9), the insides of the plurality of rotating sleeves (9) are fixedly connected to fixed frames (10), the tops of the plurality of fixed frames (10) are fixedly connected to fan blades (11), the bottoms of the plurality of rotating sleeves (9) are fixedly connected to delivery pipes (12), the bottoms of the plurality of delivery pipes (12) are fixedly connected to atomizing nozzles (13), and the bottoms of the two support plates (1) are provided with sensor control components.

2. The movable graded water curtain spray dust removal device for tunnel construction according to claim 1 is characterized in that: The sensor control assembly comprises a plurality of connecting plates (14), the left and right sides of the plurality of connecting plates (14) are respectively fixedly connected to the adjacent sides of the two supporting plates (1), the front and rear sides of the plurality of connecting plates (14) are fixedly connected to inclined baffles (15), wherein the bottoms of three inclined baffles (15) are fixedly connected to fixed sleeves (16), the bottom of one of the fixed sleeves (16) is fixedly connected to an inclination sensor (17), the bottom of one of the fixed sleeves (16) is fixedly connected to a dust concentration sensor (18), and the bottom of another fixed sleeve (16) is fixedly connected to an electronic controller (19).

3. The movable graded water curtain spray dust removal device for tunnel construction according to claim 2 is characterized in that: The bottoms of the support plate (1) and the connecting plate (14) are fixedly connected with a plurality of sleeves (20), the interiors of the plurality of sleeves (20) are provided with springs (21), the interiors of the plurality of sleeves (20) are slidably connected with a limiting plate (22), the bottoms of the plurality of limiting plates (22) are fixedly connected with a fixing column (23), the bottoms of the plurality of fixing columns (23) are fixedly connected with a fixing frame (24), the interior of the fixing frame (24) is slidably connected with a plurality of sliding rods (25), the tops of the plurality of sliding rods (25) are fixedly connected with a limiting disk (26), the tops of the fixing frame (24) are fixedly connected with a plurality of dampers (27), the bottoms of the plurality of sliding rods (25) are fixedly connected with a connecting frame (28), and a driving assembly is provided at the bottom of the connecting frame (28).

4. The movable graded water curtain spray dust removal device for tunnel construction according to claim 3 is characterized in that: The driving assembly comprises two double-headed motors (29), the tops of the two double-headed motors (29) are fixedly connected to the bottom of the connecting frame (28), the output ends of the two double-headed motors (29) are fixedly connected to driving shafts (30), the four corners of the bottom of the connecting frame (28) are fixedly connected to fixed frames 2 (31), the left and right sides of the two driving shafts (30) are fixedly connected to rotating wheels (32), the left and right sides of the top of the connecting frame (28) are fixedly connected to hydraulic cylinders (33), and the output ends of the two hydraulic cylinders (33) are fixedly connected to push rods (34).

5. The movable graded water curtain spray dust removal device for tunnel construction according to claim 1, characterized in that: The outside of the water delivery pipe (7) is rotatably connected to the inside of the rotating sleeve (9).

6. The movable graded water curtain spray dust removal device for tunnel construction according to claim 3, characterized in that: One end of the spring (21) is fixedly connected to the inner top side of the sleeve (20), and the other end of the spring (21) is fixedly connected to the top of the limiting plate (22).

7. The movable graded water curtain spray dust removal device for tunnel construction according to claim 4, characterized in that: The outside of the fixing column (23) is slidably connected to the inside of the sleeve (20), and the top of the push rod (34) is fixedly connected to the bottom of the fixing frame (24).

8. The movable graded water curtain spray dust removal device for tunnel construction according to claim 4, characterized in that: The outside of the driving shaft (30) is rotatably connected to the inside of the second fixing frame (31), and the top of the damper (27) is fixedly connected to the bottom of the connecting plate (14).

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