Tunnel gushing wastewater recycling device

Abstract

The application relates to a tunnel gushing wastewater recycling device and belongs to the field of tunnel construction wastewater treatment equipment. The device comprises a sedimentation tank, conveying chains and scrapers. One conveying chain is arranged on the front and rear inner sides of the sedimentation tank, a rotating shaft is rotatably arranged between the two conveying chains, the rotating shafts are arranged at intervals along the conveying chains, the rotating shafts are provided with the scrapers, the scrapers are provided with filter holes, the end portions of the rotating shafts are rotatably provided with first guide wheels, one end of a connecting rod is fixedly connected with the rotating shaft, the other end of the connecting rod is provided with a second guide wheel, guide grooves are arranged on the front and rear inner side walls of the sedimentation tank, the first guide wheel and the second guide wheel are embedded in the guide grooves, the scraper of the application forms a filter surface after being tilted above the sedimentation tank, the wastewater is filtered for the first time, the filtered material can be automatically conveyed to the left, the sediment in the sedimentation tank is gradually scraped by the scraper, and water is automatically returned to the sedimentation tank in the scraping process, so that the water content in the discharged sediment is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction wastewater treatment equipment, in particular to a tunnel gushing wastewater recycling device. BACKGROUND

[0002] The construction process of tunnel engineering can easily bring a lot of influences on the local natural ecological environment, such as environmental pollution, water pollution, water and soil loss, vegetation destruction and other natural ecological problems.

[0003] The wastewater sources in the tunnel construction process mainly include the following:

[0004] (1) Wastewater generated by tunneling. The external cooling water used in the TBM tunneling process is taken from the nearby river channel and transported to the TBM equipment through a pipeline. The cooling water is directly discharged after heat exchange. The discharged wastewater is mixed with stone powder and appears turbid white. In the drilling and blasting method construction, the water used for dust suppression after tunnel blasting contains a large amount of suspended solids.

[0005] (2) Rock fissure water in the tunnel. After the fissure water flows through the chemical grouting material and concrete on the tunnel wall, it flows into the tunnel drainage ditch. Due to the mixing of grouting material and concrete, the water body appears turbid white.

[0006] (3) Gushing water generated in the rich water area of the rock mass contact zone. The water quantity is large, and the water quality is different according to the geological conditions, and a large amount of suspended solids is also involved after the tunnel is washed.

[0007] According to the past construction experience, the wastewater flow discharged from the tunnel varies greatly, from a few cubic meters per hour to several hundred cubic meters per hour, which is mainly caused by many factors such as poor geology, tunnel construction progress, etc.

[0008] At present, the most common method for treating wastewater in tunnel construction is to guide the wastewater to a sedimentation tank and let the wastewater stay for a certain period of time before being discharged after the suspended solids are settled. Before the wastewater is introduced into the sedimentation tank, a filtering device is generally used to filter the wastewater once to filter out large pieces of debris such as wood fragments, large stones and other debris used during construction, so as to facilitate the treatment of wastewater in the sedimentation tank. However, the construction site of the tunnel is generally small, and the additional filtering device not only increases the overall size of the device, but also blocks the filtering device quickly due to the large size of these debris, so that the staff needs to clean the filtering device frequently, which is inconvenient to use. SUMMARY

[0009] In order to solve or partially solve the problems in the related art, the present application provides a tunnel gushing wastewater recycling device, which aims to solve the technical problem that the existing sedimentation tank still needs to be used with a filtering device.

[0010] The tunnel gushing wastewater recycling device comprises a sedimentation tank, a conveying chain and a scraper.

[0011] The front and rear inner sides of the sedimentation tank are respectively provided with a conveying chain, and a rotating shaft is rotatably arranged between the two conveying chains.

[0012] The conveying chain has a first horizontal section and a second horizontal section.

[0013] The right inner end surface of the sedimentation tank is obliquely arranged.

[0014] The scraper is in a horizontal state on the first horizontal section and forms a filtering surface.

[0015] In some schemes, the scraper has a filtering section and a solid section.

[0016] In some schemes, the height of the scraper is greater than the interval between adjacent two scrapers.

[0017] In some schemes, an adjusting block is arranged below the right end of the first horizontal section.

[0018] The adjusting block lifts the second guide wheel upward, and then pushes the scraper leftward.

[0019] In some schemes, an adsorption partition plate is vertically arranged in the sedimentation tank.

[0020] In some schemes, the adsorption partition plate is provided with adsorption branches.

[0021] In some schemes, the top of the adsorption partition plate is provided with a clamping strip, the front and rear sidewalls of the sedimentation tank are provided with clamping grooves, and the two ends of the clamping strip are clamped in the clamping grooves.

[0022] In some schemes, the sedimentation tank is provided with a dosing rack, the dosing rack comprises horizontal ducts and longitudinal ducts, the horizontal ducts and the longitudinal ducts are staggered in a grid shape, and the sidewall of each square is provided with a dosing hole.

[0023] In some schemes, the overflow pipe of the sedimentation tank is connected with a fine filtration tank, the bottom of the fine filtration tank is provided with a bearing plate, and the bearing plate is sequentially provided, from bottom to top, with a filter cloth layer, a fine sand layer and a pebble layer.

[0024] The bottom of the bearing plate is provided with a clean water cavity, the sidewall of the clean water cavity is provided with a first water outlet pipe, the first water outlet pipe is connected with the liquid inlet end of an output pump, and the first water outlet pipe is provided with a first valve.

[0025] In some schemes, the sidewall of the clean water cavity is further provided with a second water outlet pipe, one end of the second water outlet pipe is connected with the liquid inlet end of the output pump, the other end of the second water outlet pipe is connected with a ceramic filter arranged in the clean water cavity, and the second water outlet pipe is provided with a second valve.

[0026] The technical scheme provided by the present application can include the following beneficial effects:

[0027] The present application can realize the purpose of automatic cleaning by setting the scraper which can rotate, dumping above the sedimentation tank to form a filtering surface, filtering the wastewater for the first time, and automatically conveying the filtered material to the left. In addition, the present application can effectively reduce the size of the device without setting a filtering device. In the sedimentation tank, the scraper can gradually scrape the deposits in the sedimentation tank, and the water can automatically flow back to the sedimentation tank in the scraping process, thereby effectively reducing the water content in the discharged deposits and reducing the waste of water resources.

[0028] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views, and in which the exemplary embodiments of the present application are shown.

[0030] Figure 1 is a structural schematic view of a wastewater recycling device according to an embodiment of the present application;

[0031] Figure 2is another structural schematic view of the wastewater recycling device shown by the embodiment of the present application;

[0032] Figure 3 is an assembly structural schematic view of the scraper and the sedimentation tank of the wastewater recycling device shown by the embodiment of the present application;

[0033] Figure 4 is a structural schematic view of the scraper of the wastewater recycling device shown by the embodiment of the present application;

[0034] Figure 5 is an installation schematic view of the adjusting block of the wastewater recycling device shown by the embodiment of the present application;

[0035] Figure 6 is an installation schematic view of the adsorption partition plate of the wastewater recycling device shown by the embodiment of the present application;

[0036] Figure 7 is an installation schematic view of the dosing rack of the wastewater recycling device shown by the embodiment of the present application;

[0037] Figure 8 is an installation schematic view of the fine filter tank of the wastewater recycling device shown by the embodiment of the present application;

[0038] Reference signs:

[0039] 1, sedimentation tank; 101, guide groove; 102, clamping groove; 103, overflow pipe; 2, conveying chain; 201, first horizontal section; 202, second horizontal section; 3, scraper; 301, filter hole; 302, filter section; 303, solid section; 4, rotating shaft; 401, first guide wheel; 402, connecting rod; 403, second guide wheel; 5, adjusting block; 6, spring; 7, adsorption partition plate; 701, adsorption branch; 702, clamping strip; 8, dosing rack; 801, transverse conduit; 802, longitudinal conduit; 803, dosing hole; 9, fine filter tank; 901, bearing plate; 902, filter cloth layer; 903, fine sand layer; 904, pebble layer; 905, clean water cavity; 906, first water outlet pipe; 907, first valve; 908, second water outlet pipe; 909, second valve; 910, ceramic filter element; 10, output pump. DETAILED DESCRIPTION

[0040] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided so that the present application is more thorough and complete, and the scope of the present application is fully conveyed to those skilled in the art.

[0041] It should be understood that, although the terms "first", "second", "third", etc. can be employed in describing various information according to the present application, the information should not be limited to these terms. These terms are only used to distinguish one category of information from another category of information. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present application. Therefore, the characteristics defined with "first", "second" can explicitly or implicitly include one or more of the characteristics. In the description of the present application, the meaning of "a plurality of" is two or more, unless specifically limited otherwise.

[0042] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0043] Unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, they can be fixedly connected, or detachably connected, or integrated; they can be mechanically connected, or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium; they can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] Embodiment one:

[0045] Please refer to Figure 1 , Figure 2 and Figure 3 , the present application provides a kind of tunnel gushing wastewater recycling device, including sedimentation tank 1, conveying chain 2, scraper 3;Sedimentation tank 1 is roughly square, is built in the side of tunnel construction ground, with the direction of longer side as the left and right sides of sedimentation tank 1, with the direction of shorter side as the front and back sides of sedimentation tank 1, the projection of sedimentation tank 1 on the front side is roughly trapezoidal with narrow lower side and wide upper side, i.e. the right side inner end surface of the sedimentation tank 1 is inclined to be arranged.

[0046] The front and rear two inner sides of the sedimentation tank 1 are respectively provided with a conveying chain 2, some links between the two conveying chains 2 are rotatably provided with a rotating shaft 4, specifically, part of the chain plates extend upward to form a mounting portion, the end of the rotating shaft 4 is rotatably connected with the mounting portion, so that the rotating shaft 4 does not interfere with the sprocket during the rotation of the sprocket. The rotating shaft 4 is arranged at intervals along the conveying chain 2; the rotating shaft 4 is provided with a scraper 3, the scraper 3 is provided with a filter hole 301, the diameter of the filter hole 301 is greater than 10mm; the end of the rotating shaft 4 is rotatably provided with a first guide wheel 401, a connecting rod 402 is arranged vertically with the rotating shaft 4, one end of the connecting rod 402 is fixedly connected with the rotating shaft 4, the other end of the connecting rod 402 is provided with a second guide wheel 403; the front and rear two inner side walls of the sedimentation tank 1 are provided with guide grooves 101, the first guide wheel 401 and the second guide wheel 403 are embedded in the guide grooves 101, so that when the conveying chain 2 runs into the sedimentation tank 1, the position of the scraper 3 is limited by the first guide wheel 401, the second guide wheel 403 and the guide groove 101, so that it always remains perpendicular to the guide groove 101, that is, it remains in a vertical state, when the conveying chain 2 leaves the sedimentation tank 1, since the scraper 3 is not limited by the guide groove 101, the scraper 3 tilts to the left, thereby forming a filtering surface on the first horizontal section 201.

[0047] The conveying chain 2 has a first horizontal section 201 and a second horizontal section 202, the right end of the first horizontal section 201 and the right end of the connecting portion of the second horizontal section 202 are parallel to the right inner end face of the sedimentation tank 1, the first horizontal section 201 is located at the bottom of the sedimentation tank 1, the second horizontal section 202 is located above the sedimentation tank 1, and the left end of the first horizontal section 201 protrudes to the left compared to the left end of the sedimentation tank 1, and the right end of the first horizontal section 201 protrudes to the right compared to the right end of the sedimentation tank 1.

[0048] Among them, the scraper 3 is in a vertical state on the second horizontal section 202, and the scraper 3 is in a substantially horizontal state on the first horizontal section 201 and forms a filtering surface on the first horizontal section 201.

[0049] In use, the tunnel construction wastewater to be filtered is introduced from above the left side of the filtering surface through a pipeline or a water diversion channel, after passing through the filtering surface, large debris and stones in the wastewater are filtered out and remain on the scraper 3 located on the first horizontal section 201, as the conveying chain 2 moves, the scraper 3 is driven to move to the left, thereby conveying the large debris and stones to the left, and discharging them outward after reaching the leftmost end of the first horizontal section 201, thereby completing the filtering of the large debris in the wastewater.

[0050] The remaining wastewater falls into the sedimentation tank 1 after passing through the filtering surface; in the sedimentation tank 1, fine-grained sand and stones in the wastewater naturally deposit at the bottom of the sedimentation tank 1 and gradually accumulate; the scraper 3 located at the second horizontal section 202 is driven by the conveying chain 2 to slowly move to the right, gradually pushing the deposits accumulated at the bottom of the sedimentation tank 1 to the right, and after reaching the rightmost side of the first horizontal section 201, the deposits are gradually pushed upward along the right inner end surface of the sedimentation tank 1 and finally pushed out of the right end of the sedimentation tank 1, completing the separation of fine-grained impurities in the wastewater.

[0051] The scraper 3 of the present application forms a filtering surface above the sedimentation tank 1 after tilting, performs the first filtration on the wastewater, and can automatically convey the filtered material to the left; compared with the conventional filtering method using filter sheets, the present application does not need to consider the problem of filter sheet blockage after long-term use, and thus does not need to regularly clean, maintain or replace the filter sheets, effectively reducing the cost of primary filtration; in the sedimentation tank 1, the deposits in the sedimentation tank 1 are gradually scraped off by the scraper 3; compared with the method of using a conduit to extract, the water automatically flows back into the sedimentation tank 1 during the scraping process, thereby effectively reducing the water content in the discharged deposits and reducing the waste of water resources; furthermore, the present application can not only perform primary filtration on wastewater but also effectively scrape the deposits at the bottom of the sedimentation tank 1 through a set of scraper 3 systems, effectively reducing the production cost of the device.

[0052] In the present embodiment, as shown in Figure 4 the scraper 3 has a filtering section 302 and a solid section 303, and the solid section 303 is arranged away from the rotating shaft 4; thus, when the scraper 3 operates to the bottom of the sedimentation tank 1 for scraping, the solid section 303 contacts the deposits to prevent the deposits from flowing out of the filter holes 301, and at the same time, when the scraper 3 operates to the right inner end surface of the sedimentation tank 1, the water on the scraper 3 can flow out of the filtering section 302, thereby effectively reducing the water content in the deposits scraped by the scraper 3. In the present embodiment, the height of the scraper 3 is greater than the interval between two adjacent scrapers 3; thus, when the scraper 3 operates to the first horizontal section 201, tilts to the left, and the end of the tilted scraper 3 leans against the scraper 3 on its left side, the scraper 3 can form a filtering surface in the first horizontal section 201; at the same time, the design of the end of the scraper 3 forming a convex on the filtering surface is beneficial to the leftward pushing of the filtered material.

[0053] In the present embodiment, as shown in Figure 5As shown, the right end of the first horizontal section 201 is provided with an adjusting block 5, and the lower end of the adjusting block 5 is fixedly installed on the sedimentation tank 1 by a spring 6. When the scraper 3 passes through the adjusting block 5, the first guide wheel 401 first presses the adjusting block 5, and the adjusting block 5 is pressed downward and then pops up to reset under the action of the spring 6, and then the second guide wheel 403 presses the adjusting block 5. Since the scraper 3 is rotationally connected to the conveying chain 2 by the rotating shaft 4, the second guide wheel 403 cannot press the adjusting block 5 downward, but is pushed upward, thereby causing the scraper 3 to tilt to the left, and then tilts to the left under the action of its own gravity until the end thereof leans against the scraper 3 on the left side thereof.

[0054] Embodiment Two

[0055] Based on Embodiment One, in this embodiment, as shown in Figure 6 The sedimentation tank 1 is vertically installed with an adsorption partition plate 7, and the adsorption partition plate 7 is spaced apart from left to right by at least two pieces. The adsorption partition plate 7 effectively adsorbs and removes impurities in the sewage, and at the same time, the adsorption partition plate 7 sequentially separates the sedimentation tank 1 from left to right into one by one cavities to reduce the water flow disturbance between adjacent cavities, effectively improving the sedimentation effect of the sewage in the sedimentation tank 1.

[0056] In this embodiment, the adsorption partition plate 7 is provided with adsorption branches 701, which effectively increase the contact area between the adsorption partition plate 7 and the sewage, thereby improving the adsorption capacity. In addition, the arrangement of the adsorption branches 701 further improves the disturbance resistance of the partition plate, which is beneficial to the sedimentation of impurities in the sewage.

[0057] In this embodiment, the top of the adsorption partition plate 7 is provided with a clamping strip 702, and the front and rear sidewalls of the sedimentation tank 1 are provided with clamping grooves 102. The two ends of the clamping strip 702 are clamped in the clamping grooves 102, so that the adsorption partition plate 7 is movably installed in the sedimentation tank 1. The adsorption partition plate 7 is easy to disassemble, thereby facilitating cleaning and maintenance. In some specific embodiments, the clamping grooves 102 are uniformly and spaced apart along the length direction of the sedimentation tank 1. In this way, the position of the adsorption partition plate 7 can be adjusted by installing the adsorption partition plate 7 on different clamping grooves 102, so as to adapt to different uses of the sewage, thereby improving the applicability of the device.

[0058] Embodiment Three

[0059] Based on Embodiment One or Embodiment Two, in this embodiment, as shown in Figure 6 and Figure 7As shown, the sedimentation tank 1 is provided with a dosing rack 8, specifically, the dosing rack 8 is arranged at the leftmost side of the sedimentation tank 1, i.e. the left side of the leftmost adsorption partition plate 7, the dosing rack 8 includes horizontal ducts 801 and vertical ducts 802, the horizontal ducts 801 and the vertical ducts 802 are staggered in a grid shape, i.e. form a grid structure one by one, the side wall of each grid is provided with a dosing hole 803, the inside of the horizontal ducts 801 and the vertical ducts 802 are communicated with each other, one end of one of the horizontal ducts 801 or the vertical ducts 802 is connected with a dosing barrel through a pipeline, the dosing barrel stores flocculating agent mixed with clean water, during work, the flocculating agent in the dosing barrel flows into the dosing rack 8, and then is mixed into the wastewater through the dosing hole 803, in this way, the dosing position is uniform in the sedimentation tank 1, thereby effectively improving the uniformity of the mixture of the agent and the wastewater, which is beneficial to the flocculation and sedimentation of the sundries in the wastewater.

[0060] Example four:

[0061] Based on examples one to three, in this embodiment, as shown in the figure, Figure 8 the overflow pipe 103 of the sedimentation tank 1 is located at the right side of the sedimentation tank 1, the overflow pipe 103 of the sedimentation tank 1 is connected with the fine filter tank 9, the bottom of the fine filter tank 9 is provided with a bearing plate 901, the bearing plate 901 is sequentially provided with a filter cloth layer 902, a fine sand layer 903 and a cobblestone layer 904 from bottom to top; the bearing plate 901 is provided with a clean water cavity 905 below, the side wall of the clean water cavity 905 is provided with a first water outlet pipe 906, the first water outlet pipe 906 is connected with the liquid inlet end of the output pump 10, the first water outlet pipe 906 is provided with a first valve 907.

[0062] During work, after the flocculation, sedimentation and adsorption of the wastewater in the sedimentation tank 1, the wastewater flows into the fine filter tank 9 through the overflow pipe 103, in the fine filter tank 9, the wastewater is further filtered through the cobblestone layer 904, the fine sand layer 903 and the filter cloth in sequence, so as to effectively filter out the sundries in the wastewater, thereby improving the cleanliness of the treated wastewater, then the wastewater flows into the clean water cavity 905, and finally is transported to the required position by the output pump 10 for reuse, thereby avoiding the environmental pollution problem caused by the random discharge of the wastewater, and effectively improving the utilization rate of water resources.

[0063] In the embodiment, the sidewall of the water purifying cavity 905 is further provided with a second water outlet pipe 908, one end of the second water outlet pipe 908 is connected with the liquid inlet end of the output pump 10, the other end of the second water outlet pipe 908 is connected with a ceramic filter 910 arranged in the water purifying cavity 905, and the second water outlet pipe 908 is provided with a second valve 909, so that when the wastewater to be reused needs to have higher purity, the first valve 907 can be closed, the valve is opened, and then the treated water is filtered again through the ceramic filter 910, the ceramic filter 910 can make the filtering effect reach nanometer level, and the filtering effect of the wastewater is further improved.

[0064] The above has described the embodiments of the present application, the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A tunnel gushing wastewater recycling device, characterized in that: Including the sedimentation tank (1), conveying chain (2), scraper (3); The front and rear two inner sides of the sedimentation tank (1) are respectively provided with a conveying chain (2), a rotating shaft (4) is rotatably installed between the two conveying chains (2), the rotating shaft (4) is arranged at intervals along the conveying chain (2); The rotating shaft (4) is provided with a scraper (3), the scraper (3) is provided with a filter hole (301); The end of the rotating shaft (4) is rotatably provided with a first guide wheel (401), one end of a connecting rod (402) is fixedly connected with the rotating shaft (4), the other end of the connecting rod (402) is provided with a second guide wheel (403); The front and rear two inner side walls of the sedimentation tank (1) are provided with guide grooves (101), the first guide wheel (401) and the second guide wheel (403) are embedded in the guide grooves (101); The conveying chain (2) has a first horizontal section (201) and a second horizontal section (202), the first horizontal section (201) is located at the bottom of the sedimentation tank (1), the second horizontal section (202) is located above the sedimentation tank (1), and the left end of the first horizontal section (201) protrudes to the left compared with the left end of the sedimentation tank (1), and the right end of the first horizontal section (201) protrudes to the right compared with the right end of the sedimentation tank (1); The right inner end face of the sedimentation tank (1) is inclinedly arranged; Wherein, the scraper (3) is in a substantially horizontal state on the first horizontal section (201), and a filter surface is formed on the first horizontal section (201), the conveying chain (2) drives the scraper (3) to move to the left, and the filtered large impurities and stones are outputted from the left end of the sedimentation tank (1); The scraper (3) is in a vertical state on the second horizontal section (202), and is driven by the conveying chain (2) to move to the right, so that the sediments deposited at the bottom of the sedimentation tank (1) are slowly pushed to the right, and finally the sediments are pushed out from the right end of the sedimentation tank (1).

2. The tunnel gushing wastewater recycling device according to claim 1, wherein: The scraper (3) has a filter section (302) and a solid section (303), and the solid section (303) is arranged away from the rotating shaft (4).

3. The tunnel gushing wastewater recycling device according to claim 1, wherein: The height of the scraper (3) is greater than the interval between adjacent two scrapers (3).

4. The tunnel gushing wastewater recycling device according to claim 1, wherein: An adjusting block (5) is arranged below the right end of the first horizontal section (201), and a spring (6) is arranged below the adjusting block (5); wherein, the adjusting block (5) lifts the second guide wheel (403) upward, and then pushes the scraper (3) to the left.

5. The tunnel gushing wastewater recycling device according to claim 1, wherein: An adsorption partition plate (7) is vertically arranged in the sedimentation tank (1), and at least two adsorption partition plates (7) are arranged at intervals from left to right.

6. The tunnel waste water recycling device according to claim 5, characterized in that: The adsorption partition plate (7) is provided with adsorption branches (701).

7. The tunnel waste water recycling device according to claim 6, characterized in that: The top of the adsorption partition plate (7) is provided with a clamping strip (702), the front and rear sidewalls of the sedimentation tank (1) are provided with clamping grooves (102), and the two ends of the clamping strip (702) are clamped in the clamping grooves (102).

8. The tunnel waste water recycling device according to claim 1, characterized in that: The sedimentation tank (1) is provided with a dosing rack (8), the dosing rack (8) includes horizontal ducts (801) and vertical ducts (802), the horizontal ducts (801) and the vertical ducts (802) are staggered to form a grid, and the sidewall of each square is provided with a dosing hole (803).

9. The tunnel waste water recycling device according to claim 1, characterized in that: The overflow pipe (103) of the sedimentation tank (1) is connected with a fine filter tank (9), the bottom of the fine filter tank (9) is provided with a bearing plate (901), and the bearing plate (901) is sequentially provided, from bottom to top, with a filter cloth layer (902), a fine sand layer (903) and a cobblestone layer (904); The bearing plate (901) is provided below with a clean water cavity (905), the sidewall of the clean water cavity (905) is provided with a first water outlet pipe (906), the first water outlet pipe (906) is connected with the liquid inlet end of an output pump (10), and the first water outlet pipe (906) is provided with a first valve (907).

10. The tunnel waste water recycling device according to claim 9, characterized in that: The sidewall of the clean water cavity (905) is further provided with a second water outlet pipe (908), one end of the second water outlet pipe (908) is connected with the liquid inlet end of the output pump (10), the other end of the second water outlet pipe (908) is connected with a ceramic filter (910) arranged in the clean water cavity (905), and the second water outlet pipe (908) is provided with a second valve (909).

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