A railway tunnel dredging and unblocking vehicle and a railway tunnel dredging and unblocking method

Abstract

The application discloses a railway tunnel dredging and dredging method, and relates to the technical field of dredging equipment. The railway tunnel dredging and dredging vehicle comprises a high-pressure flushing system, a sewage suction system, a sewage tank, a sewage circulation system, a water tank and a conveying system. The sewage suction system is connected with the sewage tank, and the sewage circulation system is connected with the sewage tank. The sewage circulation system comprises a water pipe, a pressure filtration feed pump and a pressure filter. The pressure filtration feed pump is connected with the sewage tank, the pressure filter is connected with the pressure filtration feed pump, the water tank is connected with a water outlet of the pressure filter, and the water tank is also connected with the high-pressure flushing system. The pressure filter can separate sludge and water, the separated clean water is stored in the water tank, the separated dry sludge is conveyed to the conveying system, and the conveying system discharges the dry sludge. The sewage circulation system can separate sludge and water, thereby improving sludge treatment effect. In addition, the conveying system can convey dry sludge, thereby improving sludge treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of dredging equipment technology, and in particular to a railway tunnel dredging and clearing vehicle and a railway tunnel dredging and clearing method. Background Technology

[0002] In railway systems, the dust generated by the vibration and friction of trains passing over the bottom of the track bed is squeezed into the drainage ditch in the form of mud. In addition, when trains are running, sand is sometimes spread to increase the adhesion of the wheelsets. The spread sand accumulates in the drainage ditch, thus clogging it.

[0003] Currently, railway tunnel dredging mainly relies on manual labor. The drainage ditches inside railway tunnels are all covered with slabs, which must be completely removed before dredging operations, resulting in a large workload and making it impossible to clean the culvert areas. Furthermore, the sludge, after being removed and bagged, has a high water content and needs to be temporarily piled up on both sides of the track to dry before being transported out of the tunnel for further processing during track maintenance windows.

[0004] Existing dredging equipment mainly performs flushing and suction functions, which are relatively simple. It is difficult to process the suctioned sludge further, and manual intervention is still required for subsequent cleaning work, resulting in low work efficiency.

[0005] Therefore, how to improve the dredging effect of railway tunnels is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a railway tunnel dredging and clearing vehicle and a railway tunnel dredging and clearing method, which can effectively improve the dredging and clearing effect and work efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A railway tunnel dredging and clearing vehicle includes:

[0009] A high-pressure flushing system is used to provide high-pressure water to flush out silt from drainage ditches;

[0010] A sludge suction system is used to remove silt from drainage ditches;

[0011] A wastewater tank, connected to the sludge suction system, is used to store the sludge sucked out by the sludge suction system;

[0012] The wastewater recycling system includes a water pipe, a filter press feed pump, and a filter press. The filter press feed pump is connected to the wastewater tank, the filter press is connected to the filter press feed pump, and the water pipe is connected to the sludge suction system. The filter press feed pump is used to transport sludge to the filter press, and the filter press is used to separate the sludge from water.

[0013] A water tank, connected to the drain outlet of the filter press, is used to store the clean water separated by the filter press. The water tank is also connected to the high-pressure flushing system.

[0014] A conveying system is used to discharge the dry sludge after it has been filtered by the filter press.

[0015] Preferably, the wastewater recycling system further includes a transfer feed pump, a wastewater transfer tank, and a clean water transfer tank. The transfer feed pump is connected to the wastewater tank and the wastewater transfer tank respectively. The filter press feed pump is connected to the wastewater transfer tank. The drain outlet of the filter press is connected to the clean water transfer tank, and the clean water transfer tank is connected to the water tank.

[0016] Preferably, the conveying system includes a horizontal conveyor belt and a folded conveyor belt, the filter press is used to discharge dry sludge to the horizontal conveyor belt, and the horizontal conveyor belt is used to send dry sludge to the folded conveyor belt.

[0017] Preferably, the high-pressure flushing system includes a high-pressure flushing nozzle, a hose reel, a high-pressure water pipe, and a water pump. The water pump is connected to the high-pressure flushing nozzle through the high-pressure water pipe, and the high-pressure water pipe is wound around the hose reel.

[0018] Preferably, the sludge suction system includes a suction pipe, a vacuum pump, an overflow valve, and a steam-water separator. The suction pipe is connected to the sewage tank, and the vacuum pump is connected to the sewage tank. The vacuum pump is used to provide negative pressure for the sewage tank and the suction pipe. The vacuum pump is also connected to the overflow valve and the steam-water separator. The overflow valve and the steam-water separator are used to prevent sludge in the sewage tank from being sucked into the vacuum pump.

[0019] Preferably, the suction system further includes a robotic arm, on which the suction pipe is mounted, and the robotic arm is used to adjust the position of the suction pipe.

[0020] Preferably, the sewage tank includes a tank body, a screw conveyor, and a screw drive motor. The screw conveyor is located inside the tank body, and the screw drive motor is connected to the screw conveyor. The screw drive motor is used to drive the screw conveyor to rotate so as to discharge the sludge inside the tank body.

[0021] Preferably, the railway tunnel dredging and clearing vehicle further includes a first frame and a second frame, which are detachably connected. The high-pressure flushing system, the sludge suction system, the sewage tank, and the water tank are located on the first frame, while the sewage circulation system and the conveying system are located on the second frame.

[0022] Preferably, the first frame is further provided with a power system for providing power to the high-pressure flushing system, the sludge suction system, the sewage circulation system, and the conveying system.

[0023] A method for dredging and clearing silt from railway tunnels includes the following steps:

[0024] Step 1: The high-pressure flushing system flushes the silt in the drainage ditch to the suction port;

[0025] Step 2: The sludge suction system extracts the flushed sludge and stores it in the sewage tank;

[0026] Step 3: The filter press feed pump transports the sludge from the wastewater tank to the filter press for sludge-water separation;

[0027] Step 4: The separated clean water is returned to the water tank for use by the high-pressure flushing system, and the separated dry mud is transported out through the conveying system.

[0028] Compared with existing technologies, the above technical solution has the following advantages:

[0029] This invention provides a railway tunnel dredging and clearing vehicle and method. When dredging is required, a high-pressure flushing system provides high-pressure water to flush the silt in the drainage ditch. Then, a suction system sucks out the silt from the drainage ditch and stores it in a sewage tank. Subsequently, a filter press feed pump transports the silt from the sewage tank to a filter press. The filter press can separate the silt into mud and water. The clear water separated by the filter press is stored in a water tank, and the dry sludge separated by the filter press is transported to a conveying system, which then discharges the dry sludge after filtration. The sewage recycling system enables online mud-water separation of the silt. The separated clear water is stored in a water tank for recycling, thereby improving the silt treatment effect. Furthermore, the conveying system transports the dry sludge out without drying time, allowing for direct landfill disposal, thus improving silt treatment efficiency. Additionally, the water for the high-pressure flushing system can be sourced from the water tank, thus saving water resources. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 A schematic diagram of the overall structure of a railway tunnel dredging and clearing vehicle provided for a specific embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the support frame structure;

[0033] Figure 3 This is a structural schematic diagram of the first or second frame;

[0034] Figure 4 This is a schematic diagram of the power system.

[0035] Figure 5 This is a schematic diagram of the high-pressure flushing system;

[0036] Figure 6 This is a schematic diagram of the sewage suction system;

[0037] Figure 7 This is a schematic diagram of the sewage tank.

[0038] Figure 8 For wastewater recycling system;

[0039] Figure 9 This is a schematic diagram of the conveying system.

[0040] Figure 10 This is a schematic diagram of the water tank.

[0041] The attached figures are labeled as follows:

[0042] 1 is the car body, 101 is the front and rear end roof plates, 102 is the connecting hook plate, 103 is the load-bearing frame, 104 is the crane pin, 105 is the load-bearing frame, 106 is the bogie, and 107 is the wheelset.

[0043] 2 is the power system, 201 is the transfer case, 202 is the engine, and 203 is the power compartment;

[0044] 3 represents the high-pressure flushing system, 301 represents the high-pressure flushing nozzle, 302 represents the hose reel, 303 represents the high-pressure water hose, and 304 represents the water pump.

[0045] 4 is the sludge suction system, 401 is the sludge suction pipe, 402 is the robotic arm, 403 is the anti-overflow valve, 404 is the vacuum pump, and 405 is the steam-water separator.

[0046] 5 is the sewage tank, 501 is the screw conveyor, 502 is the base, 503 is the tank body, and 504 is the screw drive motor.

[0047] 6 is the wastewater recycling system, 601 is the wastewater transfer tank, 602 is the filter press feed pump, 603 is the filter press, 604 is the clean water transfer tank, and 605 is the transfer feed pump.

[0048] 7 represents the conveying system, 701 represents the folding conveyor belt, and 702 represents the horizontal conveyor belt;

[0049] 8 represents the water tank, and 801 represents the water tank support. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the overall structure of a railway tunnel dredging and clearing vehicle provided for a specific embodiment of the present invention.

[0052] The railway tunnel dredging and clearing vehicle provided in this embodiment of the invention includes: a high-pressure flushing system 3, a sludge suction system 4, a sewage tank 5, a sewage circulation system 6, a water tank 8, a conveying system 7, and a car body 1. The sludge suction system 4 is connected to the sewage tank 5, and the sewage circulation system 6 is connected to the sewage tank 5. The sewage circulation system 6 includes a filter press feed pump 602 and a filter press 603. The filter press feed pump 602 is connected to the sewage tank 5, and the filter press 603 is connected to the filter press feed pump 602. The water tank 8 is connected to the drain outlet of the filter press 603, and the water tank 8 is also connected to the high-pressure flushing system 3. When dredging is required, the high-pressure flushing system 3 provides high-pressure water to flush the sludge in the drainage ditch. Then, the suction system 4 sucks the sludge out of the drainage ditch and stores it in the wastewater tank 5. Subsequently, the filter press feed pump 602 transports the sludge from the wastewater tank 5 to the filter press 603. The filter press 603 can separate the sludge into mud and water. The clean water separated by the filter press 603 is stored in the water tank 8. The dry sludge separated by the filter press 603 is transported to the conveying system 7, which then discharges the dry sludge after filtration by the filter press 603. The wastewater circulation system 6 can achieve mud-water separation of the sludge, thereby improving the sludge treatment effect. In addition, the dry sludge is transported out by the conveying system 7, eliminating the need for drying time and allowing for direct landfill disposal, thus improving the sludge treatment efficiency. Furthermore, the water for the high-pressure flushing system 3 can be obtained from the water tank 8, thus saving water resources.

[0053] In some embodiments, such as Figure 8 As shown, the wastewater circulation system 6 also includes a transfer feed pump 605, a wastewater transfer tank 601, and a clean water transfer tank 604. The transfer feed pump 605 is connected to both the wastewater tank 5 and the wastewater transfer tank 601, and can transport sludge from the wastewater tank 5 to the wastewater transfer tank 601. The filter press feed pump 602 is connected to the wastewater transfer tank 601, and can transport sludge to the wastewater transfer tank 601. The wastewater transfer tank 601 can match the sludge intake with the filter press efficiency. The drain outlet of the filter press 603 is connected to the clean water transfer tank 604, and the clean water transfer tank 604 is connected to the water tank 8. Figure 10 As shown, the water tank 8 is equipped with a water tank support 801 on its outer side and bottom. The filter press feed pump 602 and the transfer feed pump 605 can be selected from different types such as sewage pump 304, diaphragm pump, and plunger pump according to the actual working conditions. The filter press 603 can be selected from equipment such as centrifuge, dewatering machine or screw press according to the required dryness of the sludge.

[0054] In some embodiments, such as Figure 1 and Figure 9 As shown, the conveying system 7 includes a horizontal conveyor belt 702 and a folding conveyor belt 701. The folding conveyor belt 701 can be unfolded to the outer end of the vehicle body 1. The filter press 603 can discharge the separated dry sludge to the horizontal conveyor belt 702. The horizontal conveyor belt 702 then sends the dry sludge to the folding conveyor belt 701. Finally, the folding conveyor belt 701 transports the dry sludge out.

[0055] In some embodiments, such as Figure 5 As shown, the high-pressure flushing system 3 includes a high-pressure flushing nozzle 301, a hose reel 302, a high-pressure water pipe 303, and a water pump 304. The water pump 304 is connected to the high-pressure flushing nozzle 301 through the high-pressure water pipe 303. The high-pressure water pipe 303 is wound around the hose reel 302, which can retract and extend the high-pressure water pipe 303. The water pump 304 can provide high-pressure water to the high-pressure flushing nozzle 301. The water pump 304 is preferably a plunger pump. In addition, the high-pressure flushing nozzle 301 can be selected from bullet-shaped nozzles, boat-shaped nozzles, sunflower nozzles, etc., depending on the silt compaction in the drainage ditch.

[0056] In some embodiments, such as Figure 6 As shown, the sludge suction system 4 includes a suction pipe 401, a vacuum pump 404, an overflow valve 403, and a steam-water separator 405. The suction pipe 401 is connected to the sewage tank 5, and the vacuum pump 404 is also connected to the sewage tank 5. The vacuum pump 404 provides negative pressure to the sewage tank 5 and the suction pipe 401. The vacuum pump 404 is also connected to the overflow valve 403 and the steam-water separator 405, which prevent sludge in the sewage tank 5 from being sucked into the vacuum pump 404. Furthermore, the sludge suction system 4 also includes a robotic arm 402, on which the suction pipe 401 is mounted. The robotic arm 402 can adjust the position of the suction pipe 401 to accurately move it into the drainage ditch.

[0057] In some embodiments, such as Figure 7As shown, the sewage tank 5 includes a tank body 503, a screw conveyor 501, a screw drive motor 504, and a base 502. The tank body 503 is mounted on the base 502. The screw conveyor 501 is located inside the tank body 503. The screw drive motor 504 is connected to the screw conveyor 501. The screw drive motor 504 is used to drive the screw conveyor 501 to rotate, so as to discharge the sludge inside the tank body 503. The sludge discharge efficiency inside the tank body 503 can be improved by using the screw drive motor 504 and the screw conveyor 501.

[0058] In some embodiments, such as Figure 1 As shown, the railway tunnel dredging and clearing vehicle also includes a first frame and a second frame, which are detachably connected. The high-pressure washing system 3, the sludge suction system 4, the sewage tank 5, and the water tank 8 are mounted on the first frame, while the sewage circulation system 6 and the conveying system 7 are mounted on the second frame. The first and second frames are detachably connected. The first and second frames can move independently. When mud-water separation is not required, the second frame can be removed from the first frame to reduce the operating cost of the dredging and clearing vehicle. Specifically, a support frame can be installed on the first frame, such as... Figure 2 As shown, the support frame includes front and rear end top plates 101, connecting hook plates 102, a load-bearing frame 103, and crane pins 104. The front and rear end top plates 101 are installed at the front and rear ends of the load-bearing frame 103, and the connecting hook plates 102 are installed on the left and right sides of the load-bearing frame 103. Holes on the load-bearing frame 103 facilitate the installation of the crane pins 104. The front and rear end top plates 101 are used to lock the longitudinal position of the load-bearing frame 103, the connecting hook plates 102 are used to lock the lateral and vertical positions of the load-bearing frame 103, and the crane pins 104 are used for the overall hoisting and vehicle mounting of the load-bearing frame 103. Figure 3 As shown, both the first and second frames include a load-bearing frame 105, a bogie 106, and wheelsets 107. Figure 7 As shown, the base 502 of the sewage tank 5 is fixed to the bottom of the tank body 503, and the base 502 is fixed to the support frame. Figure 10 As shown, three water tank brackets 801 are provided on the left and right sides of the water tank 8, and the bottom of the water tank brackets 801 is installed on the support frame.

[0059] In some embodiments, the first frame is further provided with a power system 2 for providing power to the high-pressure washing system 3, the suction system 4, the sewage circulation system 6, and the conveying system 7. For example... Figure 4 As shown, the power system 2 includes a transfer case 201, an engine 202 and a power compartment 203. The transfer case 201 is installed on the outside of the power compartment 203 and connected to the engine 202.

[0060] This invention also provides a method for dredging and clearing railway tunnels, which can employ the railway tunnel dredging and clearing vehicle provided in any of the above embodiments. The railway tunnel dredging and clearing method includes the following steps:

[0061] Step 1: The high-pressure flushing system 3 flushes the sludge in the drainage ditch to the suction port. The high-pressure flushing system 3 dilutes the sludge, making it easier for the suction system 4 to extract it.

[0062] Step 2: The suction system 4 extracts the flushed sludge and stores it in the sewage tank 5.

[0063] Step 3: The filter press feed pump 602 transports the sludge in the sewage tank 5 to the filter press 603 for sludge-water separation.

[0064] Step 4: The separated clean water is returned to water tank 8 for use by the high-pressure flushing system 3, while the separated dry sludge is transported out through the conveying system 7. By separating the mud and water, not only can water resources be recycled, but the separated dry sludge also does not need to be dried and can be directly landfilled, thus improving the efficiency of sludge treatment.

[0065] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] The foregoing has provided a detailed description of the railway tunnel dredging and clearing vehicle and the railway tunnel dredging and clearing method provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A railway tunnel dredging and clearing vehicle, characterized in that, include: A high-pressure flushing system (3) is used to provide high-pressure water to flush out silt in the drainage ditch; The sludge suction system (4) is used to remove sludge from the drainage ditch; The sewage tank (5) is connected to the sewage suction system (4) and is used to store the sludge sucked out by the sewage suction system (4); The wastewater recycling system (6) includes a water pipe, a filter press feed pump (602) and a filter press (603). The filter press feed pump (602) is connected to the wastewater tank (5), the filter press (603) is connected to the filter press feed pump (602), and the water pipe is connected to the sludge suction system (4). The filter press feed pump (602) is used to transport sludge to the filter press (603), and the filter press (603) is used to separate the sludge from water. A water tank (8) is connected to the drain outlet of the filter press (603) and is used to store the clean water separated by the filter press (603). The water tank (8) is connected to the high-pressure flushing system (3). A conveying system (7) is used to discharge the dry sludge after being filtered by the filter press (603); The wastewater circulation system (6) further includes a transfer feed pump (605), a wastewater transfer tank (601), and a clean water transfer tank (604). The transfer feed pump (605) is connected to the wastewater tank (5) and the wastewater transfer tank (601) respectively. The filter press feed pump (602) is connected to the wastewater transfer tank (601). The drain outlet of the filter press (603) is connected to the clean water transfer tank (604). The clean water transfer tank (604) is connected to the water tank (8). The sludge suction system (4) includes a suction pipe (401), a vacuum pump (404), an overflow valve (403), and a steam-water separator (405). The suction pipe (401) is connected to the sewage tank (5), and the vacuum pump (404) is connected to the sewage tank (5). The vacuum pump (404) is used to provide negative pressure to the sewage tank (5) and the suction pipe (401). The vacuum pump (404) is also connected to the overflow valve (403) and the steam-water separator (405). The overflow valve (403) and the steam-water separator (405) are used to prevent sludge in the sewage tank (5) from being sucked into the vacuum pump (404). The sewage tank (5) includes a tank body (503), a screw conveyor (501) and a screw drive motor (504). The screw conveyor (501) is located inside the tank body (503). The screw drive motor (504) is connected to the screw conveyor (501). The screw drive motor (504) is used to drive the screw conveyor (501) to rotate so as to discharge the sludge inside the tank body (503).

2. The railway tunnel dredging and clearing vehicle according to claim 1, characterized in that, The conveying system (7) includes a horizontal conveyor belt (702) and a folded conveyor belt (701). The filter press (603) is used to discharge dry sludge to the horizontal conveyor belt (702), and the horizontal conveyor belt (702) is used to send dry sludge to the folded conveyor belt (701).

3. The railway tunnel dredging and clearing vehicle according to claim 1, characterized in that, The high-pressure flushing system (3) includes a high-pressure flushing nozzle (301), a hose reel (302), a high-pressure water pipe (303), and a water pump (304). The water pump (304) is connected to the high-pressure flushing nozzle (301) through the high-pressure water pipe (303), and the high-pressure water pipe (303) is wound around the hose reel (302).

4. The railway tunnel dredging and clearing vehicle according to claim 1, characterized in that, The suction system (4) also includes a robotic arm (402), on which the suction pipe (401) is mounted, and the robotic arm (402) is used to adjust the position of the suction pipe (401).

5. The railway tunnel dredging and clearing vehicle according to any one of claims 1 to 4, characterized in that, The railway tunnel dredging and clearing vehicle also includes a first frame and a second frame, which are detachably connected. The high-pressure flushing system (3), the sludge suction system (4), the sewage tank (5) and the water tank (8) are located on the first frame, and the sewage circulation system (6) and the conveying system (7) are located on the second frame.

6. The railway tunnel dredging and clearing vehicle according to claim 5, characterized in that, The first frame is also provided with a power system (2) for providing power to the high-pressure flushing system (3), the sludge suction system (4), the sewage circulation system (6), and the conveying system (7).

7. A method for dredging and clearing railway tunnels, using the railway tunnel dredging and clearing vehicle as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Step 1: The high-pressure flushing system flushes the silt in the drainage ditch to the suction port; Step 2: The sludge suction system extracts the flushed sludge and stores it in the sewage tank; Step 3: The filter press feed pump transports the sludge from the wastewater tank to the filter press for sludge-water separation; Step 4: The separated clean water is returned to the water tank for use by the high-pressure flushing system, and the separated dry mud is transported out through the conveying system.

Images