Sewage discharge structure for TBM (Tunnel Boring Machine) water conveyance tunnel engineering construction

Abstract

The utility model discloses a sewage discharge structure for TBM water conveyance tunnel engineering construction, which comprises a water discharge tank, a water discharge well, a sewage storage well, a filter screen plate and a sedimentation tank, the water discharge well is arranged in the water discharge tank, a guide rail is arranged on one side of the water discharge tank at the water discharge well, a second motor is arranged in the guide rail, and the filter screen plate is arranged in the second motor. A horizontal moving lead screw is installed at the output end of the second motor, the filter screen plate is installed in the drainage well, a transverse plate is arranged on the surface of the filter screen plate, bosses are fixed to the two sides of the transverse plate, the dirt storage wells are arranged in the positions, on the two sides of the drainage well, of the drainage box, and dirt storage boxes are arranged in the dirt storage wells. And the sedimentation tank is arranged on one side of the drainage tank. The sewage treatment device is high in sewage discharge efficiency, has a filtering function, is good in anti-blocking effect, is convenient for cleaning silt and broken stones, and can be used for secondary utilization of sewage.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering construction technology, specifically a sewage discharge structure for TBM water conveyance tunnel construction. Background Technology

[0002] Water conveyance tunnel projects are divided into drill-and-blast engineering and TBM engineering. During the construction of TBM water conveyance tunnel projects, a large amount of sewage will be generated in the tunnel due to the infiltration of groundwater and the discharge of construction water. If this sewage is not discharged in time, it will not only affect the construction progress, but may also damage the tunnel structure.

[0003] Existing sewage discharge structures mostly adopt simple drainage ditch structures. These ditches are narrow, drain slowly, and are easily blocked by silt and gravel, resulting in low drainage efficiency and easy clogging. Moreover, the collected sewage is generally discharged directly without treatment and cannot be reused, causing waste of water resources. Furthermore, untreated sewage will pollute the environment. Therefore, we propose a sewage discharge structure for TBM water conveyance tunnel construction. Utility Model Content

[0004] The purpose of this utility model is to provide a sewage discharge structure for the construction of TBM water conveyance tunnel projects, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewage discharge structure for TBM water conveyance tunnel construction, comprising a drainage tank, a drainage well, a sludge storage well, a filter screen, and a sedimentation tank. The drainage well is located inside the drainage tank. A guide rail is installed on one side of the drainage tank at the location of the drainage well, and a second motor is installed inside the guide rail. A translation screw is installed at the output end of the second motor. The filter screen is installed inside the drainage well, and a horizontal plate is provided on the surface of the filter screen. One side of the horizontal plate extends into the interior of the guide rail and is threadedly connected to the translation screw. Bosses are fixed on both sides of the horizontal plate, and the bosses are tightly fitted to the filter screen. The sludge storage wells are all located inside the drainage tanks on both sides of the drainage well, and a sludge storage tank is provided inside each sludge storage well. The sludge storage well is connected to the drainage well through a sewage outlet. The sedimentation tank is located on one side of the drainage tank and is connected to the drainage well through a water conveyance pipeline.

[0006] Preferably, a first motor is installed at the bottom of the sewage storage well, and a lifting screw is installed at the output end of the first motor, and a lifting plate is fitted onto the external thread of the lifting screw.

[0007] Preferably, both sides of the lifting plate are fixed with support rods, and the top of the support rods is fixed with a support plate.

[0008] Preferably, both sides of the horizontal plate extend into the interior of the drain outlet and are fitted with sealing plates.

[0009] Preferably, a storage tank is installed at the top of the sedimentation tank, and a filling valve is installed between the storage tank and the filling pipe, and both sides of the filling valve are connected to the storage tank and the filling pipe through pipes.

[0010] Preferably, a first drain pipe and a second drain pipe are respectively installed on the outer wall of the sedimentation tank, and a drain valve is installed inside both the first drain pipe and the second drain pipe.

[0011] Preferably, the top of the drainage well is provided with a drainage cover plate, and the inside of the drainage cover plate is provided with drainage holes.

[0012] Preferably, the top of the sewage storage well is provided with a sealing cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Drainage tanks are spaced out inside the tunnel. Sewage from the tunnel flows into the drainage wells inside the drainage tanks through the drainage holes inside the drainage covers. The drainage wells have large diameters and capacities, resulting in high sewage discharge efficiency. The filter screen filters out the mud, sand, and gravel in the sewage. The filtered sewage is collected in the water supply pipeline and flows into the sedimentation tank. The liquid addition valve is opened, allowing the flocculant in the storage tank to be discharged into the sedimentation tank through the liquid addition pipe. It mixes with the sewage, causing the impurities in the sewage to settle. After sedimentation, the clear water and impurities separate into layers. Then, the drain valves inside the first and second drainage pipes are opened sequentially, allowing the clear water at the top to be discharged from the first drainage pipe and the sediment at the bottom to be discharged from the second drainage pipe. The clear water can be reused in tunnel construction, thereby reducing water waste and environmental pollution.

[0015] By activating the second motor inside the guide rail, the second motor drives the translation screw to rotate, causing the horizontal plate to move the boss left and right. During this process, the horizontal plate moves the sealing plate away from the inside of the sewage outlet, opening the sewage outlet. When the boss pushes the mud, sand, and gravel on the surface of the filter screen from the sewage outlet into the sludge storage tank inside the sludge storage well, the sealing cover is removed, and the first motor is activated to drive the lifting screw to rotate, causing the lifting plate to move up the support plate through the support rod. The support plate lifts the sludge storage tank, making it easy for staff to remove the sludge storage tank and clean the mud, sand, and gravel inside. This drainage structure not only has a filtration function and good anti-clogging effect, but also facilitates the cleaning of mud, sand, and gravel, ensuring smooth drainage. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the drainage tank of this utility model;

[0017] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the sludge storage tank in the raised state of this utility model;

[0019] Figure 4 This is a top view of the structure of this utility model;

[0020] Figure 5 This is an enlarged cross-sectional view of the sedimentation tank of this utility model.

[0021] In the diagram: 1. Drainage tank; 2. Drainage well; 3. Sewage storage well; 4. Sewage storage tank; 5. Sealing cover; 6. Sewage outlet; 7. Drainage cover; 8. Drainage hole; 9. Horizontal plate; 10. Boss; 11. Filter screen; 12. Support plate; 13. Support rod; 14. Lifting screw; 15. Lifting plate; 16. First motor; 17. Sealing plate; 18. Guide rail; 19. Second motor; 20. Translation screw; 21. Water supply pipeline; 22. Sedimentation tank; 23. Liquid addition pipe; 24. Storage tank; 25. Liquid addition valve; 26. First drain pipe; 27. Second drain pipe; 28. Drain valve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5The present invention provides an embodiment of a sewage discharge structure for TBM water conveyance tunnel construction, comprising a drainage tank 1, a drainage well 2, a sewage storage well 3, a filter screen 11, and a sedimentation tank 22. The drainage well 2 is located inside the drainage tank 1. A guide rail 18 is installed on one side of the drainage tank 1 at the location of the drainage well 2, and a second motor 19 is installed inside the guide rail 18. A translation screw 20 is installed at the output end of the second motor 19. The filter screen 11 is installed inside the drainage well 2, and a horizontal plate 9 is provided on the surface of the filter screen 11. One side of the horizontal plate 9 extends into the interior of the guide rail 18 and is threadedly connected to the translation screw 20. Both sides of the horizontal plate 9 are fixed with bosses 10, and the bosses 10 are tightly fitted with the filter screen 11.

[0025] Specifically, drainage tanks 1 are spaced out inside the tunnel. Sewage in the tunnel flows from the drainage holes 8 inside the drainage cover 7 into the drainage well 2 inside the drainage tank 1. The drainage well 2 has a large diameter and large capacity, which makes the sewage discharge efficiency high. The filter screen 11 filters out the mud, sand and gravel in the sewage.

[0026] Furthermore, after a period of time, the staff started the second motor 19 inside the guide rail 18 by operating the external controller. The second motor 19 drove the translation screw 20 to rotate, so that the horizontal plate 9 moved the boss 10 left and right. During this process, the horizontal plate 9 moved the sealing plate 17 away from the inside of the sewage outlet 6, so that the sewage outlet 6 opened. When the boss 10 pushed the mud, sand and gravel on the surface of the filter screen plate 11 from the sewage outlet 6 into the sewage storage box 4 inside the sewage storage well 3;

[0027] The sewage storage wells 3 are all located inside the drainage tanks 1 on both sides of the drainage well 2, and the sewage storage wells 3 are equipped with sewage storage tanks 4 inside, and the sewage storage wells 3 are connected to the drainage well 2 through the sewage outlet 6.

[0028] The sedimentation tank 22 is located on one side of the drainage tank 1, and the sedimentation tank 22 is connected to the drainage well 2 through the water supply pipeline 21;

[0029] A first motor 16 is installed at the bottom of the sewage storage well 3, and a lifting screw 14 is installed at the output end of the first motor 16, and a lifting plate 15 is fitted on the external thread of the lifting screw 14.

[0030] Both sides of the lifting plate 15 are fixed with support rods 13, and the top of the support rods 13 is fixed with a support plate 12.

[0031] Specifically, the sealing cover 5 is removed, and the first motor 16 is started to drive the lifting screw 14 to rotate, so that the lifting plate 15 drives the support plate 12 to move upward through the support rod 13. The support plate 12 lifts the sludge tank 4, making it easy for staff to take out the sludge tank 4 and clean the mud and gravel inside. This drainage structure not only has a filtration function and good anti-clogging effect, but also makes it easy to clean mud and gravel, ensuring smooth drainage.

[0032] Both sides of the horizontal plate 9 extend into the interior of the drain outlet 6 and are equipped with sealing plates 17;

[0033] A storage tank 24 is installed at the top of the sedimentation tank 22, and a filling valve 25 is installed between the storage tank 24 and the filling pipe 23. Both sides of the filling valve 25 are connected to the storage tank 24 and the filling pipe 23 through pipes.

[0034] A first drain pipe 26 and a second drain pipe 27 are respectively installed on the outer wall of the sedimentation tank 22, and a drain valve 28 is installed inside the first drain pipe 26 and the second drain pipe 27.

[0035] According to the instructions, the filtered wastewater is collected in the water supply pipeline 21 and flows into the sedimentation tank 22. The staff operates the external controller to open the liquid addition valve 25, so that the flocculant in the storage tank 24 is discharged into the sedimentation tank 22 through the liquid addition pipe 23 and mixed with the wastewater, causing the impurities in the wastewater to settle. After sedimentation, the clear water and impurities are separated into layers. Then, the drain valves 28 inside the first drain pipe 26 and the second drain pipe 27 are opened in sequence, so that the clear water in the upper layer is discharged from the first drain pipe 26 and the sediment in the lower layer is discharged from the second drain pipe 27. The clear water can be reused in tunnel construction, thereby reducing the waste of water resources and reducing environmental pollution.

[0036] The top of the drainage well 2 is provided with a drainage cover plate 7, and the inside of the drainage cover plate 7 is provided with drainage holes 8;

[0037] The top of the sewage storage well 3 is equipped with a sealing cover plate 5.

[0038] In this embodiment, the following steps are taken: First, drainage tanks 1 are spaced apart inside the tunnel. Sewage in the tunnel flows from the drainage holes 8 inside the drainage cover 7 into the drainage wells 2 inside the drainage tanks 1. The drainage wells 2 have a large diameter and capacity, resulting in high sewage discharge efficiency. The filter screen 11 filters out the mud, sand, and gravel in the sewage. The filtered sewage is collected in the water supply pipeline 21 and flows into the sedimentation tank 22. The operator opens the liquid addition valve 25 by operating an external controller, allowing the flocculant in the storage tank 24 to be discharged into the sedimentation tank 22 through the liquid addition pipe 23. The flocculant mixes with the sewage, causing the impurities in the sewage to settle. After sedimentation, the clear water and impurities separate into layers. Then, the drain valves 28 inside the first drainage pipe 26 and the second drainage pipe 27 are opened sequentially, allowing the clear water in the upper layer to be discharged from the first drainage pipe 26 and the sediment in the lower layer to be discharged from the second drainage pipe 27. The clear water can be reused in tunnel construction, thereby reducing water consumption. This system reduces resource waste and environmental pollution. After a period of time, staff operate an external controller to activate the second motor 19 inside the guide rail 18. The second motor 19 drives the translation screw 20 to rotate, causing the horizontal plate 9 to move the boss 10 left and right. During this process, the horizontal plate 9 moves the sealing plate 17 away from the drain outlet 6, opening the drain outlet 6. When the boss 10 pushes the mud, sand, and gravel on the surface of the filter screen 11 from the drain outlet 6 into the sludge storage tank 4 inside the sludge storage well 3, the sealing cover 5 is removed, and the first motor 16 is activated to drive the lifting screw 14 to rotate, causing the lifting plate 15 to drive the support plate 12 to move upward through the support rod 13. The support plate 12 lifts the sludge storage tank 4, making it easy for staff to remove the sludge storage tank 4 and clean the mud, sand, and gravel inside. This drainage structure not only has a filtration function and good anti-clogging effect, but also facilitates the cleaning of mud, sand, and gravel, ensuring smooth drainage.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A sewage discharge structure for TBM water conveyance tunnel construction, characterized by, The utility model provides a sewage treatment device, including drainage tank (1), drainage well (2), store sewage well (3), filter screen board (11) and sedimentation tank (22), drainage well (2) is arranged inside drainage tank (1), drainage tank (1) one side at drainage well (2) position is equipped with guide rail (18), and the inside installation of guide rail (18) is equipped with second motor (19), and the output of second motor (19) is equipped with translation screw rod (20), filter screen board (11) is installed inside drainage well (2), and the surface of filter screen board (11) is equipped with crosspiece (9), and crosspiece (9) one side extends to the inside of guide rail (18) and is with translation screw rod (20) screw thread sleeve joint, and both sides of crosspiece (9) are fixed with boss (10), and boss (10) is closely combined with filter screen board (11), store sewage well (3) are arranged inside drainage tank (1) both sides of drainage well (2), and store sewage well (3) is equipped with store sewage tank (4) inside, and store sewage well (3) is communicated with drainage well (2) through sewage outlet (6), sedimentation tank (22) is arranged in one side of drainage tank (1), and sedimentation tank (22) is communicated with drainage well (2) through water delivery pipeline (21).

2. A sewage discharge structure for TBM water conveyance tunnel construction according to claim 1, characterized in that: The bottom of the sewage well (3) is provided with a first motor (16), and the output end of the first motor (16) is provided with a lifting screw rod (14), and the outside of the lifting screw rod (14) is provided with a lifting plate (15).

3. A sewage evacuation structure for use in TBM water conveyance tunnel construction according to claim 2, characterized in that: Both sides of the lifting plate (15) are fixedly provided with a supporting rod (13), and the top end of the supporting rod (13) is fixedly provided with a supporting plate (12).

4. The sewage discharge structure for TBM water conveyance tunnel construction according to claim 1, characterized in that: Both sides of the crosspiece (9) extend to the inside of the sewage outlet (6) and are provided with a sealing plate (17).

5. The sewage discharge structure for TBM water conveyance tunnel construction according to claim 1, characterized in that: The top end of the sedimentation tank (22) is provided with a liquid storage tank (24), and a liquid adding valve (25) is arranged between the liquid storage tank (24) and a liquid adding pipe (23), and both sides of the liquid adding valve (25) are communicated with the liquid storage tank (24) and the liquid adding pipe (23) through pipelines.

6. The sewage discharge structure for TBM water conveyance tunnel construction according to claim 1, characterized in that: First and second drainage pipes (26) and (27) are respectively arranged on the outer wall of the sedimentation tank (22), and drainage valves (28) are arranged in the first and second drainage pipes (26) and (27).

7. The sewage discharge structure for TBM water conveyance tunnel construction according to claim 1, characterized in that: The top of the drainage well (2) is provided with a drainage cover plate (7), and the inside of the drainage cover plate (7) is provided with drainage holes (8).

8. The sewage evacuation structure for TBM water conveyance tunnel construction according to claim 1, characterized in that: The top of the sewage well (3) is provided with a sealing cover plate (5).

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