A sewage treatment device for a shield machine

Abstract

This invention relates to the field of tunnel boring machine (TBM) construction technology and discloses a wastewater treatment device for TBMs, including a treatment tank. A partition is fixedly connected to the inner wall of the treatment tank, and a rectangular groove is opened on the partition. The partition divides the treatment tank into a sedimentation chamber and a filtration chamber. A crushing mechanism and a mixing mechanism are arranged in the sedimentation chamber, with the crushing mechanism located directly above the mixing mechanism. A filter plate is arranged in the filtration chamber, with one side of the filter plate fixedly connected to the inner wall of the treatment tank and the other side fixedly connected to the partition. The filter plate has multiple filter holes, and a cleaning mechanism is arranged below the filter plate. From an environmental protection perspective, centralized recycling and treatment can effectively remove pollutants and protect the ecological environment. The treated water can be reused in construction, such as mortar mixing and equipment cleaning, reducing the demand for fresh water resources. Recovering useful substances such as sand, gravel, and coal from the wastewater can create additional economic benefits, improve the internal working environment of the TBM, and improve construction efficiency and safety.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine (TBM) construction technology, and more specifically, to a wastewater treatment device for TBMs. Background Technology

[0002] Coal mining carries the risk of gas outbursts. Therefore, gas drainage roadways need to be installed above or near the lower boundary of the coal face to reduce the gas concentration in the coal seam to a reasonable range in advance. Currently, some coal mines are using tunnel boring machine (TBM) technology to construct gas drainage roadways, which significantly improves construction efficiency compared to fully mechanized tunneling. However, when encountering water-rich layers such as fissure water, the conveyor belt can carry a large amount of water into the TBM's main unit, causing significant water accumulation and damage to numerous components. Therefore, timely drainage is one of the main challenges affecting TBM construction using conveyor belts for muck removal. Currently, when multi-mode TBMs encounter water-rich layers in TBM conveyor mode, they typically shut down immediately and close the gates, only resuming tunneling after the water level is controlled. This operation greatly reduces the tunneling efficiency of the TBM.

[0003] Application number CN214972408U discloses a wastewater treatment device for a tunnel boring machine (TBM), comprising a housing, an inlet pipe, an outlet pipe, and a partition. The partition is disposed within the housing, dividing the interior into a sedimentation chamber and a storage chamber. The inlet pipe is located at the top of the sedimentation chamber, and the outlet pipe is located on the side wall of the storage chamber. A filter plate is fixedly disposed between the top of the partition and the top wall of the housing. A float assembly is disposed on the side wall of the storage chamber. A control box is disposed on the housing, and the control box is electrically connected to the float assembly. This device has a high degree of automation and a self-cleaning function, and can effectively treat and store wastewater during the TBM process, improving the efficiency of TBM construction while ensuring construction safety. This patent is mainly applied to wastewater treatment inside TBMs.

[0004] In the existing technology, during the crushing process of tunnel boring machines, the generated crushed stone contains some coal. The existing device directly discharges it together with the crushed stone, resulting in resource waste. In addition, during the filtration process of wastewater, impurities easily adhere to the filter pores of the filter plate during use, and it is difficult to achieve a good cleaning effect by simply cleaning the filter plate with a brush. Summary of the Invention

[0005] This invention provides a wastewater treatment device for tunnel boring machines, which solves the technical problem of resource waste caused by wastewater treatment devices discharging coal and gravel together in related technologies.

[0006] This invention provides a wastewater treatment device for tunnel boring machines, including a treatment tank. A partition is fixedly connected to the inner wall of the treatment tank, and a rectangular groove is opened on the partition. The partition divides the treatment tank into a sedimentation chamber and a filtration chamber. The sedimentation chamber is equipped with a crushing mechanism and a mixing mechanism, with the crushing mechanism located directly above the mixing mechanism; A filter plate is installed inside the filter chamber. One side of the filter plate is fixedly connected to the inner wall of the treatment box, and the other side of the filter plate is fixedly connected to the partition plate. Multiple filter holes are opened on the filter plate, and a cleaning mechanism is installed below the filter plate.

[0007] Preferably, a feed pipe is fixedly connected to and communicates with the top wall of the sedimentation chamber, an outlet is opened on the bottom side of the sedimentation chamber, a sealing plug is inserted into the outlet, and an inclined plate is fixedly connected to the bottom wall of the sedimentation chamber.

[0008] Preferably, a sealing door is provided on the side wall of the filter chamber, and an observation window is provided on the sealing door. The sealing door is located above the filter plate. A liquid outlet pipe is fixedly connected to the bottom side of the filter chamber, and an electric control valve is installed on the liquid outlet pipe.

[0009] Preferably, a control box is fixedly connected to the outer wall of the processing box, and multiple control keys are installed on the outer wall of the control box. The crushing mechanism includes a motor fixedly connected to the inner wall of the control box. A rotating shaft is installed at the output end of the motor. One end of the rotating shaft extends movably into the sedimentation chamber, and the other end of the rotating shaft is fixedly connected to the partition plate through a bearing. A crushing roller is fixedly connected to the rotating shaft.

[0010] Preferably, a pair of guide plates are fixedly connected to the inner wall of the sedimentation chamber, and the guide plates are symmetrically arranged about the crushing roller. Crushing plates are fixedly connected to the opposite sides of the two guide plates, and the crushing plates are arranged on the side parallel to the crushing roller.

[0011] Preferably, the mixing mechanism includes a drive wheel and a transmission belt fixedly connected to a rotating shaft. The drive wheel is connected to a driven wheel via the transmission belt. A rotating rod is fixedly connected to the middle of the driven wheel. One end of the rotating rod is movably connected to the inner wall of the control box via a bearing. The other end of the rotating rod passes through a partition and is connected to the cleaning mechanism. Multiple stirring rods are fixedly connected to the rotating rod.

[0012] Preferably, the cleaning mechanism includes a lifting plate and driven rods. The lifting plate is located below the filter plate. Multiple cleaning rods corresponding to the filter holes are fixedly connected to the top of the lifting plate. Slider blocks are fixedly connected to both sides of the lifting plate, and the side walls of the sliders are movably connected to the support frame.

[0013] Preferably, a limiting rod is inserted into the slider, with both ends of the limiting rod fixedly connected to the support frame. A spring is sleeved on the limiting rod, with the top end of the spring fixedly connected to the top wall inside the support frame and the bottom end of the spring fixedly connected to the slider.

[0014] Preferably, one end of the driven rod is fixedly connected to the rotating rod, and the other end of the driven rod is movably connected to the inner wall of the filter chamber through a bearing. Two cams are fixedly connected to the driven rod, and the outer wall of the cams abuts against the bottom of the lifting plate.

[0015] Preferably, the top of the lifting plate is symmetrically fixedly connected with support rods, and the support rods are set on both sides of the cleaning rod. The top of the support rod penetrates through the filter plate, and the top of the support rod is fixedly connected with a pressure plate. The top of the pressure plate is symmetrically fixedly connected with vertical rods, and the top of the vertical rod penetrates through the top wall of the treatment box and is fixedly connected with a baffle.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a combination of a treatment tank, a crushing mechanism, a mixing mechanism, a filter plate, and a cleaning mechanism. The crushing mechanism crushes rocks and coal in the wastewater, the mixing mechanism stirs the solid and liquid components, the filter plate filters the wastewater, and the cleaning mechanism cleans the filter plate, thus completing a series of wastewater treatment processes. This overcomes the shortcomings of existing technologies. From an environmental perspective, tunnel boring machine wastewater contains pollutants such as suspended solids and organic matter. Direct discharge will pollute water bodies and soil. Centralized recycling and treatment can effectively remove pollutants, protect the ecological environment, and recover useful substances such as sand and coal from the wastewater, creating additional economic benefits, improving the internal working environment of the tunnel boring machine, and increasing construction efficiency and safety.

[0017] This invention employs a combination of a motor, a crushing roller, and a crushing plate. The motor drives the crushing roller to rapidly crush the solid components in the wastewater, overcoming the shortcomings of existing technologies. This effectively prevents large-diameter sand and coal from falling directly to the bottom of the sedimentation chamber and causing damage. At the same time, smaller-diameter sand and gravel are easier to hold in the sedimentation chamber, and smaller-diameter coal absorbs water faster and floats up faster, making it easier to collect and process later.

[0018] This invention employs a combination of a drive wheel, a transmission belt, a driven wheel, a rotating rod, and a stirring rod. The drive wheel drives the rotating rod to rotate, which in turn drives the stirring rod to agitate the wastewater. This overcomes the shortcomings of existing technologies, allowing the coal to come into more thorough contact with the wastewater and float up faster. Due to its own weight, the rock accumulates on the bottom surface of the sedimentation chamber, and the stirring rod prevents coal particles from being pressed against the bottom during the agitation process.

[0019] This invention employs a combination of a lifting plate, a cleaning rod, a driven rod, cams, and a pressure plate. The driven rod drives two cams to rotate, which in turn moves the lifting plate up and down during rotation. This allows the lifting plate to intermittently and quickly clean the filter plate, overcoming the shortcomings of existing technologies. Compared to the brushes used in existing technologies, the cleaning rod provides a better cleaning effect and a more thorough cleaning of the filter pores. In addition, the cleaning rod can loosen the coal, preventing it from compacting and affecting the filtration effect. Compared to brushes, the cleaning rod has a longer service life, a higher cleaning rate, and is more practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall external structure of the processing box of the present invention; Figure 3 This is a frontal view of the overall structure inside the processing box of the present invention; Figure 4 This is a side view of the overall structure of the control box of the present invention; Figure 5 This is a schematic diagram of the overall structure of the crushing roller and crushing plate of the present invention; Figure 6 This is a schematic diagram of the overall structure of the lifting plate of the present invention; Figure 7 This is a schematic diagram of the overall structure connecting the cam and the lifting plate of the present invention; Figure 8 This is a schematic diagram of the overall structure of the cam after rotation according to the present invention; Figure 9 This is a schematic diagram of the overall structure of the pressure plate of the present invention.

[0021] In the diagram: 100, processing tank; 101, sedimentation chamber; 102, filtration chamber; 103, feed pipe; 104, discharge port; 105, sealing plug; 106, sealing door; 107, observation window; 108, liquid outlet pipe; 109, inclined plate; 200. Partition plate; 201. Rectangular channel; 300. Control box; 301. Control keys; 400. Crushing mechanism; 401. Motor; 402. Rotating shaft; 403. Crushing roller; 404. Guide plate; 405. Crushing plate; 500. Mixing mechanism; 501. Driving wheel; 502. Transmission belt; 503. Driven wheel; 504. Rotating rod; 505. Stirring rod; 600. Filter plate; 601. Filter holes; 700. Cleaning mechanism; 701. Lifting plate; 702. Cleaning rod; 703. Slider; 704. Support frame; 705. Limiting rod; 706. Spring; 707. Driven rod; 708. Cam; 709. Support rod; 710. Pressure plate; 711. Vertical rod; 712. Baffle. Detailed Implementation

[0022] 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.

[0023] This invention discloses a wastewater treatment device for tunnel boring machines, such as... Figure 1-8 As shown, it includes: a processing box 100, a partition 200 fixedly connected to the inner wall of the processing box 100, a rectangular groove 201 opened on the partition 200, and the partition 200 divides the processing box 100 into a sedimentation chamber 101 and a filtration chamber 102. It should be noted that the sedimentation chamber 101 is equipped with a crushing mechanism 400 and a mixing mechanism 500, and the crushing mechanism 400 is located directly above the mixing mechanism 500. It should be noted that a filter plate 600 is provided inside the filter chamber 102. One side of the filter plate 600 is fixedly connected to the inner wall of the treatment box 100, and the other side of the filter plate 600 is fixedly connected to the partition plate 200. Multiple filter holes 601 are provided on the filter plate 600, and a cleaning mechanism 700 is provided below the filter plate 600.

[0024] In addition, a feed pipe 103 is fixedly connected to the top wall of the sedimentation chamber 101, and a discharge port 104 is opened on the bottom side of the sedimentation chamber 101. A sealing plug 105 is inserted into the discharge port 104, and an inclined plate is fixedly connected to the bottom wall of the sedimentation chamber 101.

[0025] Specifically, a sealing door 106 is provided on the side wall of the filter chamber 102, and an observation window 107 is provided on the sealing door 106. The sealing door 106 is located above the filter plate 600. An outlet pipe 108 is fixedly connected to the bottom side of the filter chamber 102, and an electric control valve is installed on the outlet pipe 108.

[0026] The working principle and beneficial effects of the above technical solution are as follows: Working principle: In the shield tunneling process in water-rich strata, the water on the belt conveyor is first transported to the treatment tank 100 through the pipeline. The sewage flows in from the feed pipe 103. The crushing mechanism 400 crushes the sand, gravel and coal in the sewage. The treated material and sewage enter the sedimentation chamber 101. The mixing mechanism 500 stirs the material and wastewater, causing the less dense impurities in the coal and sewage to float to the top, while the rocks and other more dense impurities settle to the bottom.

[0027] When the water level in the sedimentation chamber 101 reaches a certain height, the wastewater, carrying the coal floating on top, enters the filtration chamber 102. After being filtered by the filter plate 600, the wastewater enters the bottom of the filtration chamber 102, while the coal remains on top of the filter plate 600. The cleaning mechanism 700 can quickly clean and unclog the filter holes 601, preventing the filter plate 600 from becoming clogged and affecting the filtration rate. At the same time, the discharge port 104 facilitates the rapid collection of rocks. The sealing door 106, used in conjunction with the observation window 107, allows for real-time monitoring of the coal accumulation, facilitating rapid cleaning and collection. The liquid outlet pipe 108 facilitates the rapid recovery of wastewater. Beneficial Effects: This invention employs a combined approach involving a treatment tank 100, a crushing mechanism 400, a mixing mechanism 500, a filter plate 600, and a cleaning mechanism 700. The crushing mechanism 400 crushes rocks and coal in the wastewater, the mixing mechanism 500 agitates the solid and liquid components, the filter plate 600 filters the wastewater, and the cleaning mechanism 700 cleans the filter plate 600, thus completing a series of wastewater treatment processes. This overcomes the shortcomings of existing technologies. From an environmental perspective, tunnel boring machine (TBM) wastewater contains suspended solids, organic matter, and other pollutants. Direct discharge would pollute water bodies and soil. Centralized recycling and treatment can effectively remove pollutants and protect the ecological environment. With increasingly stringent environmental regulations, wastewater recycling ensures that projects meet environmental requirements. The treated water can be reused in construction, such as for mortar mixing and equipment cleaning, reducing the need for fresh water resources and making the process more environmentally friendly. Recovering useful substances such as sand and coal from the wastewater can create additional economic benefits, improve the internal working environment of the TBM, and enhance construction efficiency and safety.

[0028] In one specific embodiment: a control box 300 is fixedly connected to the outer wall of the processing box 100. Multiple control keys 301 are installed on the outer wall of the control box 300. The crushing mechanism 400 includes a motor 401 fixedly connected to the inner wall of the control box 300. A rotating shaft 402 is installed at the output end of the motor 401. One end of the rotating shaft 402 extends movably into the sedimentation chamber 101, and one end of the rotating shaft 402 is fixedly connected to the partition plate 200 through a bearing. A crushing roller 403 is fixedly connected to the rotating shaft 402.

[0029] It should be noted that a pair of guide plates 404 are fixedly connected to the inner wall of the sedimentation chamber 101, and the guide plates 404 are symmetrically arranged about the crushing roller 403. Crushing plates 405 are fixedly connected to the opposite sides of the guide plates 404, and the crushing plates 405 are arranged on the parallel side of the crushing roller 403.

[0030] The working principle and beneficial effects of the above technical solution are as follows: Working principle: During use, the invention starts the motor 401 to drive the rotating shaft 402 to rotate, and the rotating shaft 402 drives the crushing roller 403 to rotate. The crushing roller 403 works in conjunction with the crushing plates 405 set on both sides to quickly crush the solids in the sewage, with high working efficiency and good crushing effect.

[0031] Beneficial effects: The present invention uses a combination of motor 401, crushing roller 403 and crushing plate 405. The motor 401 drives the crushing roller 403 to work, which quickly crushes the solid parts in the sewage, overcoming the shortcomings of the prior art. This effectively avoids large-diameter sand and coal from falling directly to the bottom of the sedimentation chamber 101 and causing damage. At the same time, smaller-diameter sand and gravel are easier to hold in the sedimentation chamber 101, and smaller-diameter coal absorbs water faster and floats faster, making it easier to collect and process later.

[0032] In a specific embodiment: the mixing mechanism 500 includes a drive wheel 501 fixedly connected to the rotating shaft 402 and a transmission belt 502. The drive wheel 501 is connected to a driven wheel 503 through the transmission belt 502. A rotating rod 504 is fixedly connected to the middle of the driven wheel 503. One end of the rotating rod 504 is movably connected to the inner wall of the control box 300 through a bearing. The other end of the rotating rod 504 passes through the partition 200 and is connected to the cleaning mechanism 700. A plurality of stirring rods 505 are fixedly connected to the rotating rod 504.

[0033] The working principle and beneficial effects of the above technical solution are as follows: Working principle: During use, the rotating shaft 402 drives the driving wheel 501 to rotate, and the transmission belt 502 drives the driven wheel 503 to rotate, which in turn causes the rotating rod 504 to rotate. It should be noted that the diameter of the driving wheel 501 is smaller than the diameter of the driven wheel 503. Therefore, the rotation speed of the rotating rod 504 is less than that of the crushing roller 403. The rotating rod 504 drives multiple sets of stirring rods 505 to rotate, which quickly mixes the sewage and coal, so that the coal can come into more thorough contact with the sewage and float up. The rocks, due to their own gravity, accumulate on the bottom surface of the sedimentation chamber 101 and will not float up.

[0034] Beneficial effects: This invention employs a combination of a drive wheel 501, a transmission belt 502, a driven wheel 503, a rotating rod 504, and a stirring rod 505. The drive wheel 501 drives the rotating rod 504 to rotate, and the rotating rod 504 drives the stirring rod 505 to stir the sewage. This overcomes the shortcomings of the prior art, allowing the coal to come into more thorough contact with the sewage and float faster. Due to its own gravity, the rock accumulates on the bottom surface of the sedimentation chamber 101. During the stirring process of the stirring rod 505, the coal particles are also prevented from being pressed to the bottom.

[0035] In a specific embodiment: the cleaning mechanism 700 includes a lifting plate 701 and a driven rod 707. The lifting plate 701 is disposed below the filter plate 600. A plurality of cleaning rods 702 corresponding one-to-one with the filter holes 601 are fixedly connected to the top of the lifting plate 701. Slider 703 is fixedly connected to both sides of the lifting plate 701. The sidewalls of the slider 703 are movably connected to the support frame 704.

[0036] It should be noted that a limit rod 705 is inserted into the slider 703. The two ends of the limit rod 705 are fixedly connected to the support frame 704. A spring 706 is sleeved on the limit rod 705. The top end of the spring 706 is fixedly connected to the top wall inside the support frame 704, and the bottom end of the spring 706 is fixedly connected to the slider 703.

[0037] In addition, one end of the driven rod 707 is fixedly connected to the rotating rod 504, and the other end of the driven rod 707 is movably connected to the inner wall of the filter chamber 102 through a bearing. Two cams 708 are fixedly connected to the driven rod 707, and the outer wall of the cams 708 abuts against the bottom of the lifting plate 701.

[0038] Specifically, the top of the lifting plate 701 is symmetrically and fixedly connected with support rods 709, and the support rods 709 are set on both sides of the cleaning rod 702. The top of the support rods 709 penetrates the filter plate 600, and the top of the support rods 709 is fixedly connected with a pressure plate 710. The top of the pressure plate 710 is symmetrically and fixedly connected with vertical rods 711. The top of the vertical rods 711 penetrates the top wall of the treatment box 100 and is fixedly connected with a baffle 712.

[0039] The working principle and beneficial effects of the above technical solution are as follows: Working Principle: During use, the rotating rod 504 drives the driven rod 707 to rotate, which in turn drives the two cams 708 to rotate. During rotation, the cams 708 reciprocate by raising and lowering the lifting plate 701. When the lifting plate 701 is raised, the cleaning rods 702, each corresponding to a filter hole 601, quickly unclog and clean the filter holes 601, preventing blockage and ensuring filtration efficiency. When the lifting plate 701 is lowered, the filter holes 601 open, allowing for rapid filtration of wastewater. By using a slider 703 in conjunction with a limiting rod 705, the reciprocating motion of the lifting plate 701 becomes more stable. Since the length of the cleaning rod 702 is greater than the depth of the filter hole 601, the cleaning rod 702 will loosen the coal accumulated on the top of the filter plate 600 to avoid affecting the sewage filtration effect. In addition, a pressure plate 710 is provided that rises and falls with the movement of the lifting plate 701. When the coal accumulates too high on the filter plate 600, it will press the coal to a certain extent to discharge the sewage absorbed inside the coal and prevent the coal from having too high a moisture content.

[0040] Beneficial effects: This invention employs a combination of a lifting plate 701, a cleaning rod 702, a driven rod 707, a cam 708, and a pressure plate 710. The driven rod 707 drives the two cams 708 to rotate, which in turn moves the lifting plate 701 up and down, allowing it to intermittently and quickly clean the filter plate 600. This overcomes the shortcomings of existing technologies. The cleaning rod 702 provides a better cleaning effect than the brush in existing technologies, cleaning the filter holes 601 more thoroughly. In addition, the cleaning rod 702 can loosen the coal, preventing it from compacting and affecting the filtration effect. Compared with the brush, the cleaning rod 702 has a longer service life, a higher cleaning rate, and is more practical.

[0041] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater treatment device for a tunnel boring machine, comprising a treatment tank (100), characterized in that: A partition (200) is fixedly connected to the inner wall of the processing box (100). A rectangular groove (201) is provided on the partition (200). The partition (200) divides the processing box (100) into a sedimentation chamber (101) and a filtration chamber (102). The sedimentation chamber (101) is provided with a crushing mechanism (400) and a mixing mechanism (500), and the crushing mechanism (400) is located directly above the mixing mechanism (500); A filter plate (600) is provided inside the filter chamber (102). One side of the filter plate (600) is fixedly connected to the inner wall of the processing box (100), and the other side of the filter plate (600) is fixedly connected to the partition plate (200). Multiple filter holes (601) are provided on the filter plate (600), and a cleaning mechanism (700) is provided below the filter plate (600).

2. The wastewater treatment device for a tunnel boring machine according to claim 1, characterized in that, The top wall of the sedimentation chamber (101) is fixedly connected to the feed pipe (103) and communicates with it. The bottom side of the sedimentation chamber (101) is provided with a discharge port (104). A sealing plug (105) is inserted into the discharge port (104), and an inclined plate (109) is fixedly connected to the bottom wall of the sedimentation chamber (101).

3. The wastewater treatment device for a tunnel boring machine according to claim 1, characterized in that, The filter chamber (102) is provided with a sealing door (106) on its side wall. The sealing door (106) is provided with an observation window (107) and the sealing door (106) is located above the filter plate (600). The bottom side of the filter chamber (102) is fixedly connected to a liquid outlet pipe (108) and an electric control valve is installed on the liquid outlet pipe (108).

4. A wastewater treatment device for a tunnel boring machine according to claim 1, characterized in that, A control box (300) is fixedly connected to the outer wall of the processing box (100). Multiple control keys (301) are installed on the outer wall of the control box (300). The crushing mechanism (400) includes a motor (401) fixedly connected to the inner wall of the control box (300). A rotating shaft (402) is installed at the output end of the motor (401). One end of the rotating shaft (402) extends movably into the sedimentation chamber (101), and one end of the rotating shaft (402) is fixedly connected to the partition plate (200) through a bearing. A crushing roller (403) is fixedly connected to the rotating shaft (402).

5. A wastewater treatment device for a tunnel boring machine according to claim 4, characterized in that, A pair of guide plates (404) are fixedly connected to the inner wall of the sedimentation chamber (101), and the guide plates (404) are symmetrically arranged about the crushing roller (403). A crushing plate (405) is fixedly connected to the opposite side of the two guide plates (404), and the crushing plate (405) is arranged on the side parallel to the crushing roller (403).

6. A wastewater treatment device for a tunnel boring machine according to claim 1, characterized in that, The mixing mechanism (500) includes a drive wheel (501) and a transmission belt (502) fixedly connected to a rotating shaft (402). The drive wheel (501) is connected to a driven wheel (503) via the transmission belt (502). A rotating rod (504) is fixedly connected to the middle of the driven wheel (503). One end of the rotating rod (504) is movably connected to the inner wall of the control box (300) via a bearing. The other end of the rotating rod (504) passes through a partition (200) and is connected to the cleaning mechanism (700). Multiple stirring rods (505) are fixedly connected to the rotating rod (504).

7. A wastewater treatment device for a tunnel boring machine according to claim 6, characterized in that, The cleaning mechanism (700) includes a lifting plate (701) and a driven rod (707). The lifting plate (701) is located below the filter plate (600). A plurality of cleaning rods (702) corresponding one-to-one with the filter holes (601) are fixedly connected to the top of the lifting plate (701). Slider blocks (703) are fixedly connected to both sides of the lifting plate (701). The side walls of the sliders (703) are movably connected to the support frame (704).

8. A wastewater treatment device for a tunnel boring machine according to claim 7, characterized in that, A limiting rod (705) is inserted into the slider (703). Both ends of the limiting rod (705) are fixedly connected to the support frame (704). A spring (706) is sleeved on the limiting rod (705). The top end of the spring (706) is fixedly connected to the top wall inside the support frame (704), and the bottom end of the spring (706) is fixedly connected to the slider (703).

9. A wastewater treatment device for a tunnel boring machine according to claim 8, characterized in that, One end of the driven rod (707) is fixedly connected to the rotating rod (504), and the other end of the driven rod (707) is movably connected to the inner wall of the filter chamber (102) through a bearing. Two cams (708) are fixedly connected to the driven rod (707), and the outer wall of the cams (708) abuts against the bottom of the lifting plate (701).

10. A wastewater treatment device for a tunnel boring machine according to claim 9, characterized in that, The top of the lifting plate (701) is symmetrically fixedly connected with a support rod (709), and the support rod (709) is located on both sides of the cleaning rod (702). The top of the support rod (709) penetrates through the filter plate (600). The top of the support rod (709) is fixedly connected with a pressure plate (710). The top of the pressure plate (710) is symmetrically fixedly connected with a vertical rod (711). The top of the vertical rod (711) penetrates through the top wall of the treatment box (100) and is fixedly connected with a baffle (712).

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