Roadheader on-board gushing water and sewage treatment system and method thereof

Abstract

The application discloses a tunneling machine on-board water and sludge treatment system and method, which comprises a water and sludge separation device arranged on the tunneling machine, a sludge conveying device connected with the water and sludge separation device, a sludge tank connected with the water and sludge separation device, a sewage pipeline connected with the sludge tank, a water baffle arranged on a pipe piece behind the tunneling machine to form a water retaining dam in front of the water baffle, a plurality of water pumping pipelines connected with the excavation bin, the front shield, the middle shield, the tail shield and / or the front of the water baffle of the tunneling machine, and a water pump and an on-off valve arranged on each of the water pumping pipelines to control the on-off of the corresponding water pumping pipeline. The application solves the technical problem of sludge accumulation in the tunneling process, and guarantees the safety and efficiency of the tunneling process.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, and in particular to a machine-mounted water inrush and sewage treatment system and method for tunnel boring machines. Background Technology

[0002] Currently, during tunnel boring machine (TBM) construction, various factors can lead to significant water inflow or sewage accumulation within the tunnel face, including water inflow at the tunnel face and excavation face, water leakage during conveyor belt and muck transport, and frequent cleaning of the shield tunneling area. In severe cases, this flooding can extend from the tail shield area to downstream support facilities and other areas within the tunnel, causing difficulties for material transport vehicles, hindering track laying, and resulting in inefficient and substandard segment hoisting and assembly. It also obstructs personnel access and makes maintenance of equipment such as segment trolleys and trailer wheelsets difficult. The current solution involves pumping sewage only from the tail shield area to sewage tanks on trailers. After initial sedimentation, the separated water is pumped back to the surface, while the sediment is removed from the tunnel via conveyor belts or material transport vehicles.

[0003] The above-mentioned sewage treatment methods require a large number of personnel and equipment such as belt conveyors and material transport vehicles, which are inefficient and cannot fundamentally solve the problem of sewage and sludge accumulation during tunnel excavation, seriously affecting the construction safety and efficiency of the excavation process.

[0004] Therefore, based on years of experience and practice in related industries, the inventor proposes a tunneling machine-mounted water inrush and sewage treatment system and method to overcome the shortcomings of the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a tunneling machine-mounted water inrush and sewage treatment system and method, which can separate water from slag and mud, and separate and transport all sewage out of the tunnel section, avoiding the accumulation of sewage and mud inside the tunnel, effectively changing the impact of mud and sewage on the construction process, ensuring the safety of the tunneling process, and improving construction efficiency.

[0006] The objective of this invention can be achieved through the following methods:

[0007] This invention provides a tunneling machine-mounted water inrush and wastewater treatment system, the tunneling machine-mounted water inrush and wastewater treatment system comprising:

[0008] A water-slag separation device is used to separate water and slag in muddy water, and the water-slag separation device is installed on a tunneling machine;

[0009] The slag conveying equipment is connected to the slag discharge port of the water-slag separation equipment.

[0010] The wastewater tank has its outlet connected to the inlet of the water-sludge separation equipment, and its outlet connected to the sewage pipeline.

[0011] A water-retaining plate is installed on the tunnel lining segments behind the main body of the tunneling machine to form a water-retaining dam in front of the water-retaining plate.

[0012] Multiple pumping pipelines are respectively connected to the excavation chamber, front shield, middle shield, tail shield and / or the front of the water baffle of the tunneling machine. Each of the multiple pumping pipelines is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank. Each of the multiple pumping pipelines is equipped with a pumping pump and an on / off valve for controlling the opening and closing of the corresponding pumping pipeline.

[0013] In a preferred embodiment of the present invention, a first on / off valve is provided at the inlet of the water-slag separation device or on the pipeline directly connected to the inlet of the water-slag separation device.

[0014] And / or, a second on / off valve is provided at the inlet of the sewage tank or on the pipeline directly connected to the inlet of the sewage tank.

[0015] In a preferred embodiment of the present invention, the sewage pipeline includes a main sewage pipeline and an auxiliary sewage pipeline. The main sewage pipeline is connected to the outlet of the sewage tank. The main sewage pipeline and the auxiliary sewage pipeline are connected by a first connecting pipeline. The first connecting pipeline is provided with a third on / off valve and a first one-way valve that allows one-way flow from the main sewage pipeline to the auxiliary sewage pipeline.

[0016] In a preferred embodiment of the present invention, a first sewage pump and a fourth on / off valve are respectively provided on the main sewage pipeline upstream and downstream of the location where the main sewage pipeline connects to the first connecting pipeline.

[0017] In a preferred embodiment of the present invention, a direct discharge pipeline is connected to the auxiliary sewage pipeline downstream of the location where the auxiliary sewage pipeline is connected to the first connecting pipeline. The direct discharge pipeline extends to the outside of the tunnel, and a second one-way valve and a second sewage pump are provided on the direct discharge pipeline for one-way flow from the direct discharge pipeline to the outside of the tunnel.

[0018] In a preferred embodiment of the present invention, at least a first water inlet and a second water inlet are provided on the partition plate located between the excavation chamber and the front shield. The first water inlet is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank through a first flow pipeline. A fifth on-off valve and a first water pump are provided on the first flow pipeline.

[0019] The second water inlet is connected to the inlet of the water-sludge separation equipment and the inlet of the sewage tank through the second flow pipeline. The second flow pipeline is equipped with a sixth shut-off valve and a second water pump.

[0020] In a preferred embodiment of the present invention, a third flow passage is provided at the front shield and / or the middle shield, the third flow passage is connected to the inlet of the water-sludge separation device and the inlet of the sewage tank respectively, and a third water pump is provided on the third flow passage.

[0021] In a preferred embodiment of the present invention, a fourth flow passage is provided at the tail shield, the fourth flow passage is connected to the inlet of the water-sludge separation device and the inlet of the sewage tank respectively, and a fourth water pump is provided on the fourth flow passage.

[0022] In a preferred embodiment of the present invention, a fifth flow passage is provided in the area where the tail shield and the segment meet. The fifth flow passage is connected to the inlet of the water-slag separation device and the inlet of the sewage tank, respectively. A fifth water pump and a seventh shut-off valve are provided on the fifth flow passage.

[0023] In a preferred embodiment of the present invention, the fifth flow passage is connected to the auxiliary sewage discharge passage via a second connecting passage, the second connecting passage being provided with an eighth shut-off valve and a third check valve that flows from the fifth flow passage to the auxiliary sewage discharge passage.

[0024] In a preferred embodiment of the present invention, a sixth flow pipeline is provided inside the dam. The sixth flow pipeline is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank. A third sewage pump and a ninth on / off valve are provided on the sixth flow pipeline.

[0025] In a preferred embodiment of the present invention, the sixth flow-through pipeline located between the third sewage pump and the ninth on / off valve is connected to one end of the third connecting pipeline, and the other end of the third connecting pipeline is connected to the second connecting pipeline. The third connecting pipeline is provided with a tenth on / off valve and a fourth one-way valve that allows unidirectional flow from the sixth flow-through pipeline to the second connecting pipeline.

[0026] In a preferred embodiment of the present invention, a slag-water collection tank is provided below the slag conveying device. The slag-water collection tank is connected to the inlet of the water-slag separation device and the inlet of the sewage tank through a seventh flow pipeline. A first slag-water pump is provided on the seventh flow pipeline.

[0027] In a preferred embodiment of the present invention, the outlet of the sewage tank is connected to the sludge collection tank through an eighth overflow pipe, and a second sludge pump is provided on the eighth overflow pipe.

[0028] In a preferred embodiment of the present invention, a ninth flow passage is provided at the tail shield, the ninth flow passage is connected to the inlet of the water-sludge separation device and the inlet of the sewage tank respectively, a buffer tank is provided on the ninth flow passage, and a fourth sewage pump is provided on the ninth flow passage and upstream of the buffer tank.

[0029] This invention provides a method for treating water inflow and wastewater on a tunneling machine. The method employs the aforementioned water inflow and wastewater treatment system for tunneling machines and includes the following steps:

[0030] If the volume of sewage and / or gushing water in the tunneling machine is lower than the water treatment capacity of the slag separation equipment, then the sewage and / or gushing water in front of the excavation chamber, front shield, middle shield, tail shield and / or water baffle of the tunneling machine shall be transported to the slag separation equipment for slag separation treatment.

[0031] If the volume of sewage and / or gushing water in the tunneling machine is higher than the water treatment capacity of the slag separation equipment, then at least a portion of the sewage and / or gushing water in front of the excavation chamber, front shield, middle shield, tail shield and / or water baffle of the tunneling machine shall be transported to the slag separation equipment for slag separation treatment; at least another portion of the sewage and / or gushing water shall be transported to the sewage tank for storage and discharge treatment.

[0032] In a preferred embodiment of the present invention, the muddy water and / or gushing water transported to the sewage tank are discharged out of the tunnel through the main sewage pipeline and / or auxiliary sewage pipeline after sedimentation.

[0033] In a preferred embodiment of the present invention, when water gushing into the excavation chamber, the water gushing into the excavation chamber is pumped into the water-slag separation device and / or the sewage tank through a first flow pipe and / or a second flow pipe.

[0034] In a preferred embodiment of the present invention, when there is sewage in the tail shield, the sewage in the tail shield is pumped into the water-slag separation device through the fourth flow pipeline. The water separated by the water-slag separation device is transported to the sewage tank, and the slag separated by the water-slag separation device is transported to the slag conveying equipment or material conveying vehicle and transported to the outside of the tunnel.

[0035] In a preferred embodiment of the present invention, when the amount of sewage and / or gushing water in front of the front shield, middle shield, tail shield and / or the baffle plate is greater than a preset water volume threshold, and the amount of slag in the sewage and / or gushing water is less than a preset first slag threshold, the sewage and / or gushing water is directly discharged out of the tunnel through the main sewage pipeline and / or auxiliary sewage pipeline.

[0036] When the volume of sewage and / or gushing water in front of the front shield, middle shield, tail shield and / or the baffle plate exceeds a preset water volume threshold, and the amount of slag in the sewage and / or gushing water exceeds a preset first slag threshold, the sewage and / or gushing water is transported to the water-slag separation device, the water separated by the water-slag separation device is transported to the sewage tank, and the slag separated by the water-slag separation device is transported to the slag conveying device or material conveying vehicle and transported to the outside of the tunnel.

[0037] In a preferred embodiment of the present invention, when the amount of sewage and / or gushing water in front of the front shield, middle shield, tail shield and / or the baffle plate exceeds a preset second slag threshold, the sewage and / or gushing water are sequentially transported to the buffer tank and the water-slag separation device. The water separated by the water-slag separation device is transported to the sewage tank, and the slag separated by the water-slag separation device is transported to the slag conveying device or material conveying vehicle and transported to the outside of the tunnel.

[0038] As described above, the features and advantages of the tunneling machine-mounted water inrush and sewage treatment system and method of the present invention are as follows: A water-slag separation device, a slag conveying device, and a sewage tank are installed on the tunneling machine. The slag outlet of the water-slag separation device is connected to the slag conveying device, the water outlet of the water-slag separation device is connected to the inlet of the sewage tank, and the outlet of the sewage tank is connected to a sewage discharge pipeline. Furthermore, a baffle plate is installed on the tunnel lining segments behind the main tunneling machine to form a water-retaining dam in front of the baffle plate. Multiple pumping pipelines are installed in front of the excavation chamber, front shield, middle shield, tail shield, and / or the baffle plate of the tunneling machine. These multiple pumping pipelines are respectively connected to the inlet of the water-slag separation device and the inlet of the sewage tank, and the multiple pumping pipelines are evenly distributed... The tunnel boring machine (TBM) is equipped with a water pump and on / off valves to control the opening and closing of the corresponding water pumping pipelines. During the actual tunneling process, the corresponding water pumping pipeline is selected based on the location and volume of accumulated sewage and / or gushing water. The sewage and / or water in the gushing water are separated from the slag through a water-slag separation device or directly transported to a sewage tank. This allows all sewage to be separated and transported to the outside of the tunnel within the TBM section, while the slag separated from the sewage is transported to the outside of the tunnel through a slag conveying device. This avoids the accumulation of sewage and mud in the tunnel, effectively reduces the impact of mud and sewage on the construction process, ensures the safety of the tunneling process, and improves construction efficiency. Attached Figure Description

[0039] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0040] in:

[0041] Figure 1 This is a schematic diagram of the onboard water inrush and sewage treatment system of the tunneling machine of the present invention.

[0042] Figure 2This is a schematic diagram of the slag conveying equipment and slag and water collection tank in the tunneling machine's onboard water inrush and sewage treatment system of the present invention.

[0043] The reference numerals in the accompanying drawings of this invention are:

[0044] 1. Water-sludge separation equipment; 2. Sewage tank;

[0045] 3. First on / off valve; 4. Second on / off valve;

[0046] 5. Main sewage pipeline; 6. Auxiliary sewage pipeline;

[0047] 7. First connecting pipeline; 8. First sewage pump;

[0048] 9. Fourth on / off valve; 10. Seventh flow-through pipeline;

[0049] 11. First slag pump; 12. Third on / off valve;

[0050] 13. First check valve; 14. Straight-through pipeline;

[0051] 15. Second check valve; 16. Second sewage pump;

[0052] 17. Water baffle; 18. Partition;

[0053] 19. First flow path; 20. Second flow path;

[0054] 21. Third flow path; 22. Fourth flow path;

[0055] 23. Fifth flow path; 24. Ninth flow path;

[0056] 25. Sixth flow path; 26. Fifth shut-off valve;

[0057] 27. Sixth shut-off valve; 28. First water pump;

[0058] 29. Second water pump; 30. Third water pump;

[0059] 31. Fourth water pump; 32. Fifth water pump;

[0060] 33. Seventh-way shut-off valve; 34. Buffer tank;

[0061] 35. Fourth sewage pump; 36. Eighth shut-off valve;

[0062] 37. Third check valve; 38. Third sewage pump;

[0063] 39. Ninth on / off valve; 40. Third connecting pipeline;

[0064] 41. Fourth check valve; 42. Tenth shut-off valve;

[0065] 43. Second slag water pump; 44. Slag conveying equipment;

[0066] 45. Sludge and water collection tank; 46. Second connecting pipe;

[0067] 47. Eighth flow passage; 100. Excavation chamber;

[0068] 200, front shield; 300, middle shield;

[0069] 400, tail shield; 500, tunnel segment. Detailed Implementation

[0070] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0071] In this invention, terms such as "upper," "lower," "top," and "bottom," which indicate direction, are all used in this way. Figure 1 The directions "up", "down", "top", and "bottom" are used as a reference, and will be explained here together.

[0072] Implementation Method 1

[0073] like Figure 1 As shown, this invention provides an onboard water inrush and wastewater treatment system for a tunneling machine. The system includes: a water-slag separation device 1 for separating water and slag in muddy water, the device being mounted on the tunneling machine; a slag conveying device 44, with the outlet of the water-slag separation device 1 connected to it; a wastewater tank 2, with the outlet of the water-slag separation device 1 connected to the inlet of the tank and the outlet of the tank connected to a sewage pipeline; and a water baffle 17. The baffle plate 17 is installed on the segment 500 behind the main body of the tunneling machine to form a water-retaining dam in front of the baffle plate 17; multiple pumping pipelines are respectively connected to the excavation chamber 100, front shield 200, middle shield 300, tail shield 400 and / or the front of the baffle plate 17 of the tunneling machine. The multiple pumping pipelines are respectively connected to the inlet of the water-slag separation equipment 1 and the inlet of the sewage tank 2, and each of the multiple pumping pipelines is equipped with a pumping pump and an on / off valve for controlling the opening and closing of the corresponding pumping pipeline.

[0074] In this invention, the water-slag separation device 1 can be, but is not limited to, one or more combinations of a mud-water separation screen, a mud-water separation hydrocyclone, and a mud filter press. Of course, other existing equipment capable of separating water from slag in mud-water can also be used, as long as it can achieve water-slag separation. In addition, in this invention, the slag conveying device 44 can be, but is not limited to, a belt conveyor, or other conveying equipment for conveying slag can also be used.

[0075] In this invention, a water-slag separation device 1, a slag conveying device 44, and a sewage tank 2 are installed on the tunneling machine. The slag outlet of the water-slag separation device 1 is connected to the slag conveying device 44, and the water outlet of the water-slag separation device 1 is connected to the inlet of the sewage tank 2. The outlet of the sewage tank 2 is connected to a sewage discharge pipeline. A baffle plate 17 is installed on the tunnel segment 500 behind the main body of the tunneling machine to form a water-retaining dam in front of the baffle plate 17. Multiple pumping pipelines are installed in front of the excavation chamber 100, the front shield 200, the middle shield 300, the tail shield 400, and / or the baffle plate 17 of the tunneling machine. The multiple pumping pipelines are respectively connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2, and the multiple pumping pipelines are evenly distributed. The tunnel is equipped with a water pump and on / off valves to control the opening and closing of the corresponding water pumping pipelines. During the actual tunneling process, the corresponding water pumping pipeline is selected and opened according to the location and volume of accumulated sewage and / or gushing water. The sewage and / or water in the gushing water are separated from the slag through the water-slag separation device 1 or directly transported to the sewage tank 2. This allows all sewage to be separated and transported to the outside of the tunnel in the shield machine section, while the slag separated from the sewage is transported to the outside of the tunnel through the slag conveying device 44. This achieves the purpose of avoiding the accumulation of sewage and mud in the tunnel, effectively changing the impact of mud and sewage on the construction conditions during the tunneling machine construction process, ensuring the safety of the tunneling construction process, and improving construction efficiency.

[0076] In this invention, by setting up the water baffle 17, in the case of a large amount of water inflow, the formed water baffle can block the large amount of water inflow in front of the dam and then discharge it outward, thus avoiding the situation where the water inflow flows to the rear supporting equipment of the tunneling machine and causes stagnation.

[0077] In an optional embodiment of the invention, such as Figure 1 As shown, a first on / off valve 3 is installed at the inlet of the slag separation device 1 or on the pipeline directly connected to the inlet of the slag separation device 1; and / or, a second on / off valve 4 is installed at the inlet of the sewage tank 2 or on the pipeline directly connected to the inlet of the sewage tank 2. During daily slag discharge, sewage and gushing water need to be treated. Therefore, the first on / off valve 3 remains normally open. If the amount of sewage and / or gushing water to be treated exceeds the processing capacity of the slag separation device 1, the second on / off valve 4 is activated, allowing some of the sewage and / or gushing water to be directly transported to the sewage tank 2 for separation and discharge.

[0078] In an optional embodiment of the invention, such as Figure 1As shown, the sewage pipeline includes a main sewage pipeline 5 and an auxiliary sewage pipeline 6. The main sewage pipeline 5 is connected to the outlet of the sewage tank 2. The main sewage pipeline 5 and the auxiliary sewage pipeline 6 are connected by a first connecting pipeline 7. The first connecting pipeline 7 is equipped with a third shut-off valve 12 and a first one-way valve 13 that allows one-way flow from the main sewage pipeline 5 to the auxiliary sewage pipeline 6. Under normal circumstances, drainage can be carried out only through the main sewage pipeline 5. When the amount of water to be discharged exceeds the drainage capacity of the main sewage pipeline 5, the third shut-off valve 12 can be activated to allow both the main sewage pipeline 5 and the auxiliary sewage pipeline 6 to drain simultaneously, thereby preventing the accumulation of sewage and / or gushing water in the tunnel.

[0079] In an optional embodiment of the invention, such as Figure 1 As shown, a first sewage pump 8 is installed upstream of the main sewage pipeline 5 at the point where the main sewage pipeline 5 connects to the first connecting pipeline 7, and a fourth on / off valve 9 is installed downstream of the main sewage pipeline 5 at the point where the main sewage pipeline 5 connects to the first connecting pipeline 7. The first sewage pump 8 provides pumping power for sewage and / or gushing water through the main sewage pipeline 5 and the auxiliary sewage pipeline 6, and the fourth on / off valve 9 controls the on / off state of the first connecting pipeline 7.

[0080] Furthermore, water pipe retraction and release devices are respectively installed on the main sewage pipe 5 and the auxiliary sewage pipe 6 to retract and release the main sewage pipe 5 and the auxiliary sewage pipe 6.

[0081] In an optional embodiment of the invention, such as Figure 1 As shown, a direct discharge pipe 14 is connected downstream of the auxiliary sewage pipe 6 at the point where it connects to the first connecting pipe 7. The direct discharge pipe 14 extends to the outside of the tunnel, and is equipped with a second one-way valve 15 and a second sewage pump 16 that allow one-way flow from the direct discharge pipe 14 to the outside of the tunnel. If sewage accumulates or gushes in a certain location inside the tunnel, it can be directly discharged to the outside of the tunnel through the direct discharge pipe 14.

[0082] In an optional embodiment of the invention, such as Figure 1 As shown, at least a first and a second water inlet are provided on the partition 18 located between the excavation chamber 100 and the front shield 200. The first water inlet is connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2 via a first flow pipe 19. A fifth shut-off valve 26 and a first pump 28 are provided on the first flow pipe 19. The second water inlet is connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2 via a second flow pipe 20. A sixth shut-off valve 27 and a second pump 29 are provided on the second flow pipe 20. When water surges, the first flow pipe 19 and / or the second flow pipe 20 can be selectively opened according to the water volume to pump the water surge in the excavation chamber 100 to the water-slag separation device 1, where the water and slag are separated and discharged separately.

[0083] In an optional embodiment of the invention, such as Figure 1 As shown, a third flow-through pipe 21 is installed at the front shield 200 and / or the middle shield 300. The third flow-through pipe 21 is connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2, respectively. A third water pump 30 is installed on the third flow-through pipe 21. When there is sewage at the front shield 200 and / or the middle shield 300, the third flow-through pipe 21 can be opened to pump the sewage in the front shield 200 and / or the middle shield 300 to the water-slag separation device 1, where the water and slag are separated and discharged separately.

[0084] In an optional embodiment of the invention, such as Figure 1 As shown, a fourth flow pipe 22 is installed at the tail shield 400. The fourth flow pipe 22 is connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2, respectively. A fourth water pump 31 is installed on the fourth flow pipe 22. The fourth water pump 31 can be, but is not limited to, a pneumatic diaphragm pump. The pneumatic diaphragm pump can pump out the relatively thin sewage (sludge water) accumulated in the tail shield 400 and pump it to the water-slag separation device 1. After the water and slag are separated, the separated water is transported to the sewage tank 2; the separated slag is transported to the outside of the tunnel by the slag conveying device 44 or a material conveying vehicle.

[0085] In an optional embodiment of the invention, such as Figure 1 As shown, a fifth flow-through pipe 23 is provided in the area where the tail shield 400 connects to the segment 500. The fifth flow-through pipe 23 is connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2. A fifth water pump 32 and a seventh shut-off valve 33 are installed on the fifth flow-through pipe 23. If there is sewage in the area where the tail shield 400 connects to the segment 500, the fifth flow-through pipe 23 can be opened to pump the sewage from the area where the tail shield 400 connects to the segment 500 to the water-slag separation device 1. In the water-slag separation device 1, the water and slag are separated and discharged separately.

[0086] Furthermore, such as Figure 1 As shown, the fifth overflow pipe 23 and the auxiliary sewage pipe 6 are connected by a second connecting pipe 46. The second connecting pipe 46 is equipped with an eighth shut-off valve 36 and a third check valve 37 that flows from the fifth overflow pipe 23 to the auxiliary sewage pipe 6. If there is sewage in the area where the tail shield 400 connects to the pipe segment 500, the second connecting pipe 46 can be connected to directly collect and discharge the sewage through the auxiliary sewage pipe 6.

[0087] In an optional embodiment of the invention, such as Figure 1As shown, a sixth flow-through pipe 25 is installed inside the dam. The sixth flow-through pipe 25 is connected to the inlet of the water-slag separation equipment 1 and the inlet of the sewage tank 2. A third sewage pump 38 and a ninth shut-off valve 39 are installed on the sixth flow-through pipe 25. The sixth flow-through pipe 25 located between the third sewage pump 38 and the ninth shut-off valve 39 is connected to one end of the third connecting pipe 40. The other end of the third connecting pipe 40 is connected to the second connecting pipe 46. A tenth shut-off valve 42 and a fourth one-way valve 41 that allows one-way flow from the sixth flow-through pipe 25 to the second connecting pipe 46 are installed on the third connecting pipe 40. If the volume of sewage and / or gushing water in front of the baffle plate 17 is large and the water quality is good, one or more of the third flow pipe 21, the fourth flow pipe 22, the fifth flow pipe 23, and the sixth flow pipe 25 can be opened according to the actual water volume, and the water can be directly pumped to the main sewage pipe 5 and / or the auxiliary sewage pipe 6 through the sewage tank 2 and discharged to the outside of the tunnel. If the volume of sewage and / or gushing water in front of the baffle plate 17 is large and the water quality is poor, one or more of the third flow pipe 21, the fourth flow pipe 22, the fifth flow pipe 23, and the sixth flow pipe 25 can be opened according to the actual water volume, and the water can be pumped to the water-slag separation device 1, where the water and slag are separated. The separated water is discharged to the outside of the tunnel through the main sewage pipe 5 and / or the auxiliary sewage pipe 6, and the separated slag is transported to the outside of the tunnel through the slag conveying device 44 or the material conveying vehicle.

[0088] In an optional embodiment of the invention, such as Figure 1 , Figure 2 As shown, a slag and water collection tank 45 is installed below the slag conveying equipment 44. The slag and water collection tank 45 is connected to the inlet of the slag and water separation equipment 1 and the inlet of the sewage tank 2 via the seventh flow pipe 10. A first slag and water pump 11 is installed on the seventh flow pipe 10. The outlet of the sewage tank 2 is connected to the slag and water collection tank 45 via the eighth flow pipe 47. A second slag and water pump 43 is installed on the eighth flow pipe 47. The slag and water collection tank 45 can collect the water overflowing from the slag conveying equipment 44 during the slag discharge process, and further separate the water in the slag and soil. The collected water can be transported to the sewage tank 2 and then discharged to the outside of the tunnel through the main sewage pipe 5 and / or the auxiliary sewage pipe 6, while the separated slag and soil is transported to the outside of the tunnel. Specifically, the slag and water collection tank 45 can be configured, but is not limited to, the connection position of the slag conveying equipment 44 (such as the overlap position between two belt conveyors), the inclined position of the slag conveying equipment 44 (such as the inclined position of the tail section of the belt conveyor), and / or the horizontal position of the slag conveying equipment 44 (such as the horizontal conveying section of the belt conveyor), thereby collecting water that is prone to overflow. Through the configuration of the slag and water collection tank 45, water in the slag to be transported can be further separated, reducing the water content in the slag to be transported, reducing the transport power required by the slag conveying equipment 44, helping to extend the service life of the slag conveying equipment 44, and improving the transport efficiency of the slag conveying equipment 44.

[0089] In an optional embodiment of the invention, such as Figure 1 As shown, a ninth overflow pipe 24 is provided at the tail shield 400. The ninth overflow pipe 24 is connected to the inlet of the water-slag separation device 1 and the inlet of the sewage tank 2. A buffer tank 34 is provided on the ninth overflow pipe 24. A fourth sewage pump 35 is provided on the ninth overflow pipe 24 and upstream of the buffer tank 34.

[0090] In this invention, the multiple pumping pipelines may be, but are not limited to, a first flow pipeline 19, a second flow pipeline 20, a third flow pipeline 21, a fourth flow pipeline 22, a fifth flow pipeline 23, a sixth flow pipeline 25, and a ninth flow pipeline 24. The pumps installed on the multiple pumping pipelines may be, but are not limited to, a first pumping pump 28, a second pumping pump 29, a third pumping pump 30, a fourth pumping pump 31, a fifth pumping pump 32, a third sewage pump 38, and a fourth sewage pump 35. The on / off valves installed on the multiple pumping pipelines may be, but are not limited to, a fifth on / off valve 26, a sixth on / off valve 27, a seventh on / off valve 33, and a ninth on / off valve 39.

[0091] The features and advantages of the present invention for the onboard water inrush and sewage treatment system of the tunneling machine are as follows:

[0092] The onboard water and sewage treatment system of this tunnel boring machine can separate the sewage and / or water accumulated in the tunnel boring machine from the excavated soil. The water is discharged to the outside of the tunnel through sewage pipelines, while the separated excavated soil is transported to the outside of the tunnel by belt conveyor or material transport vehicle. All sewage is separated and transported to the outside of the tunnel in the shield section, so that there is no sewage or water inflow in the tunnel. This changes the construction situation of serious mud accumulation during the construction of the tunnel boring machine, ensures the construction safety of the tunneling process, and effectively improves the tunneling construction efficiency.

[0093] Implementation Method 2

[0094] like Figure 1As shown, the present invention provides a method for treating water inflow and wastewater on a tunneling machine. This method employs the aforementioned onboard water inflow and wastewater treatment system for tunneling machines. The method includes the following steps: if the volume of wastewater and / or water inflow in the tunneling machine is lower than the water treatment capacity of the water-slag separation device 1, then the wastewater and water in front of the excavation chamber 100, front shield 200, middle shield 300, tail shield 400, and / or water baffle 17 of the tunneling machine are treated... / or the gushing water is transported to the slag separation equipment 1 for slag separation treatment; if the amount of sewage and / or gushing water in the tunneling machine is higher than the water treatment capacity of the slag separation equipment 1, at least a portion of the sewage and / or gushing water in front of the excavation chamber 100, front shield 200, middle shield 300, tail shield 400 and / or water baffle 17 of the tunneling machine is transported to the slag separation equipment 1 for slag separation treatment; at least another portion of the sewage and / or gushing water is transported to the sewage tank 2 for storage and discharge treatment.

[0095] When handling small amounts of sewage and / or gushing water in daily operations, the first on / off valve 3 remains open, thereby pumping the small amount of sewage and / or gushing water to the water-slag separation equipment 1 for water-slag separation treatment; if the amount of sewage and / or gushing water exceeds the water treatment capacity of the water-slag separation equipment 1, the second on / off valve 4 is activated, and at least part of the sewage and / or gushing water is transported to the sewage tank 2. After sedimentation or simple separation, the sewage and / or gushing water in the sewage tank 2 is pumped by the first sewage pump 8 to the main sewage pipeline 5 and / or the auxiliary sewage pipeline 6 and then discharged outside the tunnel.

[0096] In an optional embodiment of the present invention, such as Figure 1 As shown, the muddy water and / or gushing water transported to the sewage tank 2 can be discharged outside the tunnel through the main sewage pipe 5 and / or the auxiliary sewage pipe 6 after sedimentation. When dealing with small amounts of sewage and / or gushing water in daily operations, it is sufficient to discharge them by simply opening the main sewage pipe 5. If a large amount of sewage and / or gushing water occurs, both the main sewage pipe 5 and the auxiliary sewage pipe 6 can be opened simultaneously for discharge treatment.

[0097] In an optional embodiment of the present invention, such as Figure 1 As shown, when a large amount of water flows into the excavation chamber 100, the water in the excavation chamber is pumped into the water-slag separation device 1 and / or the sewage tank 2 through the first flow pipe 19 and / or the second flow pipe 20 for external discharge.

[0098] In an optional embodiment of the present invention, such as Figure 1 As shown, when there is sewage (dilute muddy water) in the tail shield 400, the sewage in the tail shield 400 is pumped into the water-slag separation device 1 through the fourth overflow pipe 22. The water separated by the water-slag separation device 1 is transported to the sewage tank 2, and the slag separated by the water-slag separation device 1 is transported to the slag conveying device 44 or the material conveying vehicle to be transported to the outside of the tunnel.

[0099] In an optional embodiment of the present invention, such as Figure 1 As shown, when the volume of sewage and / or gushing water in front of the front shield 200, middle shield 300, tail shield 400 and / or baffle 17 is greater than the preset water volume threshold, and the amount of slag in the sewage and / or gushing water is less than the preset first slag threshold, the sewage and / or gushing water is directly discharged out of the tunnel through the main sewage pipe 5 and / or auxiliary sewage pipe 6; when the volume of sewage and / or gushing water in front of the front shield 200, middle shield 300, tail shield 400 and / or baffle 17 is greater than the preset water volume threshold, and the amount of slag in the sewage and / or gushing water is greater than the preset first slag threshold, the sewage and / or gushing water is transported to the water-slag separation device 1, the water separated by the water-slag separation device 1 is transported to the sewage tank 2, and the slag separated by the water-slag separation device 1 is transported to the slag conveying device 44 or the material conveying vehicle and transported out of the tunnel. The water volume threshold can be set based on the water treatment capacity of the water-slag separation device 1 and the sewage tank 2. When the water volume exceeds the preset threshold, the water-slag separation device 1 and the sewage tank 2 cannot complete the timely treatment of sewage and / or gushing water. In this case, since the water quality of the sewage and / or gushing water is relatively good (i.e., the amount of slag in the sewage and / or gushing water is less than the preset first slag threshold), it will not block the sewage pipe, and can be directly discharged outside the tunnel through the main sewage pipe 5 and / or the auxiliary sewage pipe 6. The first slag threshold can be set according to the inner diameter of the sewage pipe to ensure that the slag in the sewage and / or gushing water will not block the sewage pipe. If the amount of slag in the sewage and / or gushing water is greater than the preset first slag threshold, even if the water volume of the sewage and / or gushing water is greater than the preset water volume threshold, it is necessary to first separate the water and slag through the water-slag separation device 1 before discharging it outside the tunnel through the main sewage pipe 5 and / or the auxiliary sewage pipe 6.

[0100] In this invention, such as Figure 1 As shown, when the amount of sewage and / or gushing water in front of the front shield 200, middle shield 300, tail shield 400 and / or baffle 17 exceeds the preset second slag threshold, the sewage and / or gushing water are sequentially transported to the buffer tank 34 and the water-slag separation device 1. The water separated by the water-slag separation device 1 is transported to the sewage tank 2, and the slag separated by the water-slag separation device 1 is transported to the slag conveying device 44 or the material conveying vehicle and transported to the outside of the tunnel. The second slag threshold can be set according to the processing capacity of the water-slag separation equipment 1. When the slag content in the sewage and / or the slurry is large and the mud is thick, exceeding the water-slag separation capacity of the water-slag separation equipment 1, the sewage and / or the slurry needs to be pumped to the buffer tank 34 for sedimentation treatment first. Then, the sewage and / or the slag in the upper part of the buffer tank 34 with less slag is pumped to the water-slag separation equipment 1. The water separated by the water-slag separation equipment 1 is transported to the sewage tank 2, and the slag separated by the water-slag separation equipment 1 is transported to the slag conveying equipment 44 or the material conveying vehicle to be transported to the outside of the tunnel.

[0101] The tunnel boring machine-mounted water and sewage treatment method of the present invention can treat sewage and / or water inflow at various locations in the tunnel to separate the slag and water, preventing sewage and / or water inflow from accumulating and flowing freely in the tunnel. The separated water is transported to the outside of the tunnel through the sewage pipeline, and the separated slag is transported to the outside of the tunnel through the slag conveying equipment 44 or the material conveying vehicle. This ensures the smooth passage of material transport vehicles, personnel passage, and the smooth completion of operations such as equipment track laying and daily maintenance.

[0102] The method for treating water inrush and sewage on the tunnel boring machine of the present invention has the same features and advantages as the above-mentioned system for treating water inrush and sewage on the tunnel boring machine, and will not be repeated here.

[0103] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A machine-mounted water inrush and wastewater treatment system for a tunneling machine, characterized in that, The tunneling machine's onboard water inrush and wastewater treatment system includes: A water-slag separation device is used to separate water and slag in muddy water, and the water-slag separation device is installed on a tunneling machine; The slag conveying equipment is connected to the slag discharge port of the water-slag separation equipment. The wastewater tank has its outlet connected to the inlet of the water-sludge separation equipment, and its outlet connected to the sewage pipeline. A water-retaining plate is installed on the tunnel lining segments behind the main body of the tunneling machine to form a water-retaining dam in front of the water-retaining plate. Multiple pumping pipelines are respectively connected to the excavation chamber, front shield, middle shield, tail shield and / or the front of the baffle of the tunneling machine. Each of the multiple pumping pipelines is respectively connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank. Each of the multiple pumping pipelines is equipped with a pumping pump and an on / off valve for controlling the opening and closing of the corresponding pumping pipeline. The partition between the excavation chamber and the front shield is provided with at least a first water inlet and a second water inlet. The first water inlet is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank through a first flow pipe. The first flow pipe is provided with a fifth shut-off valve and a first water pump. The second water inlet is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank through a second flow pipe. The second flow pipe is provided with a sixth shut-off valve and a second water pump. A third flow passage is provided at the front shield and / or the middle shield. The third flow passage is connected to the inlet of the water-sludge separation equipment and the inlet of the sewage tank, respectively. A third water pump is provided on the third flow passage. A fifth flow passage is provided in the area where the tail shield connects with the segment. The fifth flow passage is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank. A fifth water pump and a seventh shut-off valve are provided on the fifth flow passage.

2. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 1, characterized in that, A first on / off valve is installed at the inlet of the water-slag separation equipment or on the pipeline directly connected to the inlet of the water-slag separation equipment. And / or, a second on / off valve is provided at the inlet of the sewage tank or on the pipeline directly connected to the inlet of the sewage tank.

3. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 1 or 2, characterized in that, The sewage pipeline includes a main sewage pipeline and an auxiliary sewage pipeline. The main sewage pipeline is connected to the outlet of the sewage tank. The main sewage pipeline and the auxiliary sewage pipeline are connected by a first connecting pipeline. The first connecting pipeline is equipped with a third on / off valve and a first one-way valve that allows one-way flow from the main sewage pipeline to the auxiliary sewage pipeline.

4. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 3, characterized in that, A first sewage pump and a fourth shut-off valve are respectively installed upstream and downstream of the main sewage pipeline where the main sewage pipeline connects to the first connecting pipeline.

5. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 3, characterized in that, A direct discharge pipeline is connected to the auxiliary sewage pipeline downstream of the location where the auxiliary sewage pipeline connects to the first connecting pipeline. The direct discharge pipeline extends to the outside of the tunnel. A second one-way valve and a second sewage pump are installed on the direct discharge pipeline, which allows one-way flow from the direct discharge pipeline to the outside of the tunnel.

6. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 1, characterized in that, A fourth flow passage is provided at the tail shield, which is connected to the inlet of the water-sludge separation equipment and the inlet of the sewage tank, respectively. A fourth water pump is provided on the fourth flow passage.

7. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 3, characterized in that, The fifth flow passage is connected to the auxiliary sewage discharge passage via a second connecting passage. The second connecting passage is equipped with an eighth shut-off valve and a third check valve that flows from the fifth flow passage to the auxiliary sewage discharge passage.

8. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 7, characterized in that, The dam is equipped with a sixth flow pipeline, which is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank. The sixth flow pipeline is equipped with a third sewage pump and a ninth on / off valve.

9. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 8, characterized in that, The sixth flow-through pipeline located between the third sewage pump and the ninth on / off valve is connected to one end of the third connecting pipeline, and the other end of the third connecting pipeline is connected to the second connecting pipeline. The third connecting pipeline is equipped with a tenth on / off valve and a fourth one-way valve that allows one-way flow from the sixth flow-through pipeline to the second connecting pipeline.

10. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 1, characterized in that, A slag and water collection tank is provided below the slag conveying equipment. The slag and water collection tank is connected to the inlet of the water-slag separation equipment and the inlet of the sewage tank through a seventh flow pipeline. A first slag and water pump is provided on the seventh flow pipeline.

11. The tunneling machine-mounted water inrush and sewage treatment system as described in claim 10, characterized in that, The outlet of the sewage tank is connected to the sludge and water collection tank through the eighth overflow pipe, and the eighth overflow pipe is equipped with a second sludge and water pump.

12. The tunneling machine-mounted water inrush and wastewater treatment system as described in claim 1, characterized in that, A ninth flow passage is provided at the tail shield. The ninth flow passage is connected to the inlet of the water-sludge separation equipment and the inlet of the sewage tank. A buffer tank is provided on the ninth flow passage, and a fourth sewage pump is provided on the ninth flow passage and upstream of the buffer tank.

13. A method for treating water inrush and wastewater carried by a tunneling machine, characterized in that, The method for treating water inflow and wastewater from a tunneling machine employs the water inflow and wastewater treatment system for a tunneling machine as described in any one of claims 1 to 12, and the method includes the following steps: If the volume of sewage and / or gushing water in the tunneling machine is lower than the water treatment capacity of the slag separation equipment, then the sewage and / or gushing water in front of the excavation chamber, front shield, middle shield, tail shield and / or water baffle of the tunneling machine shall be transported to the slag separation equipment for slag separation treatment. If the volume of sewage and / or gushing water in the tunneling machine is higher than the water treatment capacity of the slag separation equipment, then at least a portion of the sewage and / or gushing water in front of the excavation chamber, front shield, middle shield, tail shield and / or water baffle of the tunneling machine shall be transported to the slag separation equipment for slag separation treatment; at least another portion of the sewage and / or gushing water shall be transported to the sewage tank for storage and discharge treatment.

14. The method for treating water inrush and wastewater from a tunneling machine as described in claim 13, characterized in that, The muddy water and / or gushing water transported to the sewage tank are discharged outside the tunnel through the main sewage pipeline and / or auxiliary sewage pipeline after sedimentation.

15. The method for treating water inrush and wastewater from a tunneling machine as described in claim 13, characterized in that, When water gushes into the excavation chamber, the water is pumped into the water-slag separation equipment and / or the sewage tank through the first flow pipe and / or the second flow pipe.

16. The method for treating water inrush and wastewater from a tunneling machine as described in claim 13, characterized in that, When there is sewage in the tail shield, the sewage in the tail shield is pumped into the water-slag separation device through the fourth flow pipeline. The water separated by the water-slag separation device is transported to the sewage tank, and the slag separated by the water-slag separation device is transported to the slag conveying equipment or material conveying vehicle and transported to the outside of the tunnel.

17. The method for treating water inrush and wastewater from a tunneling machine as described in claim 13, characterized in that, When the volume of sewage and / or gushing water in front of the front shield, middle shield, tail shield and / or the baffle plate is greater than a preset water volume threshold, and the amount of slag in the sewage and / or gushing water is less than a preset first slag threshold, the sewage and / or gushing water is directly discharged out of the tunnel through the main sewage pipeline and / or auxiliary sewage pipeline. When the volume of sewage and / or gushing water in front of the front shield, middle shield, tail shield and / or the baffle plate exceeds a preset water volume threshold, and the amount of slag in the sewage and / or gushing water exceeds a preset first slag threshold, the sewage and / or gushing water is transported to the water-slag separation device, the water separated by the water-slag separation device is transported to the sewage tank, and the slag separated by the water-slag separation device is transported to the slag conveying device or material conveying vehicle and transported to the outside of the tunnel.

18. The method for treating water inrush and wastewater from a tunneling machine as described in claim 13, characterized in that, When the amount of sewage and / or gushing water in front of the front shield, middle shield, tail shield and / or the baffle plate exceeds the preset second slag threshold, the sewage and / or gushing water are sequentially transported to the buffer tank and the water-slag separation device. The water separated by the water-slag separation device is transported to the sewage tank, and the slag separated by the water-slag separation device is transported to the slag conveying equipment or material conveying vehicle and transported to the outside of the tunnel.

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