CN112110545A - An unpowered artificial wetland system - Google Patents

Abstract

The invention discloses an unpowered constructed wetland system which is characterized by comprising a water inlet pipe, a water inlet tank, a first water outlet pipe, a wetland area and a second water outlet pipe, wherein the water inlet pipe is communicated with the water inlet tank, the water inlet tank is communicated with the wetland area through the first water outlet pipe, the wetland area is communicated with the second water outlet pipe, one side, close to the water inlet pipe, in the water inlet tank is provided with a hydraulically-driven slag removal device and a curved surface grating, and the curved surface grating is arranged below the hydraulically-driven slag removal device. The hydraulic driving slag removal device is used for achieving the purpose of automatic slag removal, and frequent manual cleaning is not needed while electric driving is not needed; in addition, the unique unpowered water absorber utilizes the structure of the unpowered water absorber to replace a traditional electric water pump, and the unpowered water absorber is more suitable for the condition that the water inflow of rural sewage is unstable, so that the subsequent artificial wetland can distribute water uniformly, and the purification capacity of the artificial wetland can be exerted greatly.

Description

An unpowered artificial wetland system

technical field

The invention relates to the technical field of water treatment, in particular to an unpowered artificial wetland system.

Background technique

Constructed wetlands are artificially created and suitable for the growth of aquatic plants or wet plants. According to the artificial ecosystems simulated by natural wetlands, they are mainly divided into: surface flow wetlands, subsurface horizontal flow constructed wetlands and subsurface vertical flow constructed wetlands. Generally, the whole system consists of a pretreatment unit and a constructed wetland unit. The pretreatment unit includes a grille (to remove large domestic waste and prevent clogging of the subsequent treatment unit), and a grit chamber (to remove inorganic particles); the constructed wetland unit is mainly composed of an anti-seepage layer. , matrix layer, plant layer, the use of soil, artificial medium, plants, microorganisms, physical, chemical, biological triple synergy to achieve the removal of organic matter, nitrogen, phosphorus and other pollutants.

Most of the rural areas in my country are located in remote locations far away from the cities and cannot fully lay sewage pipe networks, so it is suitable to adopt a decentralized treatment mode. Constructed wetland treatment mode has the advantages of low investment, good effluent quality, strong impact resistance, increasing green space, improving and beautifying the ecological environment, simple operation, low maintenance and operating costs, etc. Especially suitable for rural areas in my country, it has become the current rural treatment mode. Important development trend of sewage engineering.

However, due to inconvenient transportation and imperfect infrastructure in rural and remote mountainous areas, many areas do not even have access to electricity. Therefore, designing a new type of unpowered constructed wetland system that does not require electric drive becomes the key to solving this problem.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an unpowered artificial wetland system to solve the problem that most remote rural areas cannot drive the sewage treatment system due to inability to supply electricity.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: an unpowered artificial wetland system, comprising a water inlet pipe, a water inlet pool, a first water outlet pipe, a wetland area and a second water outlet pipe, and the water inlet pipe is connected with the water inlet pipe. The water pool is connected, the water inlet pool is communicated with the wetland area through the first water outlet pipe, the wetland area is communicated with the second water outlet pipe, and the side of the water inlet pool close to the water inlet pipe is provided with hydraulic power The slag cleaning device and the curved grid are driven, and the curved grid is arranged below the hydraulically driven slag cleaning device. The domestic sewage is passed into the inlet pool through the water inlet pipe; the garbage in the domestic sewage can be screened uninterruptedly when the domestic sewage is discharged into the inlet pool through the hydraulic drive slag cleaning device and the curved grille. In addition, the cleaning process does not require electric drive or personnel control, and the application and maintenance costs are low, and it is easy to popularize and use.

In the aforementioned non-powered constructed wetland system, a grid slag collection tank and a non-powered water absorber are also arranged in the water inlet pool, the grid slag collection tank is arranged at the rear end of the curved grille, and the non-powered water absorber is provided. The device is arranged below the screening slag collection tank, and the unpowered water suction device is communicated with the first water outlet pipe.

In the aforementioned unpowered constructed wetland system, the curved grille includes a grille frame and a plurality of grille bars, and the plurality of grille bars are fixed on the grille frame; The grids are arranged at equal intervals and form grid gaps; the grid bars are of curved surface structure.

In the aforementioned unpowered constructed wetland system, the unpowered slag cleaning mechanism includes a slag cleaning paddle, a support shaft and a support frame, the support frame is fixed on the grid slag collection tank, and the slag cleaning paddle passes through the slag cleaning paddle. The support shaft is installed on the support frame, the slag cleaning paddle rotates through the support shaft, and the slag cleaning paddle is arranged in cooperation with the curved grille, that is, the slag cleaning paddle is provided with the The rake teeth are set corresponding to the grid gap. When working, the rake teeth are inserted into the grid gap to remove the grid slag.

In the aforementioned unpowered constructed wetland system, the unpowered water suction device includes a pipeline, a hose, a counterweight device, a support device and a water intake head. One end of the pipe is connected to and communicated with the pipe, the other end of the pipe is connected with the hose, and the counterweight device is arranged below the pipe.

In the aforementioned unpowered constructed wetland system, the counterweight device includes a counterweight block, a chain and a hook, the hook is fixed on the pipe, one end of the chain is hung on the hook, and the other end is hung on the hook There are said counterweights.

In the aforementioned unpowered constructed wetland system, the support device includes a support rod, a support ring and a support base, one end of the support rod is connected with the support ring, and the other end is connected with the support base, the support base fixed to the bottom of the inlet pool.

In the aforementioned unpowered constructed wetland system, the water inlet pipe, the first water outlet pipe and the second water outlet pipe are alloy metal pipes, steel pipes or plastic pipes.

In the aforementioned unpowered constructed wetland system, the water inlet pool and the wetland area are concrete structures.

In the aforementioned unpowered constructed wetland system, the unpowered slag cleaning mechanism and the curved grille are steel structures or alloy structures.

In the aforementioned unpowered constructed wetland system, the pipes and the hoses are made of plastic material or metal material with certain ductility.

In the aforementioned unpowered constructed wetland system, the water intake head is a steel or alloy mesh structure, and an inspection well is also provided in the water inlet pool.

Compared with the prior art, the present invention utilizes the hydraulic drive slag cleaning device to achieve the purpose of automatic slag cleaning, and does not require electric drive and does not require frequent manual cleaning; Compared with the traditional electric water pump, the present invention is more suitable for the situation of unstable inflow of rural sewage, so that the subsequent artificial wetlands can evenly distribute water, and give full play to its purification ability. This unpowered and unpowered constructed wetland system can make the constructed wetland technology popularized in the vast rural areas where the infrastructure is not perfect and cannot supply electricity, protect the local ecological environment, and has a good application prospect.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute an unreasonable limitation to the present invention. In the attached image:

Fig. 1 is the elevation schematic diagram of the unpowered unpowered artificial wetland system of the present invention;

Fig. 2 is the elevation view of the water inlet pool in the unpowered unpowered constructed wetland system of the present invention;

Fig. 3 is the plan view of the water inlet pool in the unpowered unpowered artificial wetland system of the present invention;

4 is a schematic diagram of a curved grille in the unpowered unpowered constructed wetland system of the present invention;

5 is a top view of a curved grille in the unpowered unpowered constructed wetland system of the present invention;

Fig. 6 is the schematic diagram of the unpowered slag cleaning mechanism in the unpowered unpowered constructed wetland system of the present invention;

Fig. 7 is the schematic diagram of the unpowered water absorber in the unpowered unpowered constructed wetland system of the present invention;

FIG. 8 is a schematic view of the structure of the slag cleaning pulp plate of the present invention.

Reference numerals: 1-grid frame, 2-grid bar, 3-unpowered slag cleaning mechanism, 4-slag cleaning paddle, 5-support shaft, 6-support frame, 7-unpowered water suction device, 8- Pipe, 9-Hose, 10-Counterweight, 11-Chain, 12-Hook, 13-Support Rod, 14-Support Ring, 15-Support Base, 16-Water Head, 17-Inlet Pipe, 18-First Outlet pipe, 19-screen slag collection tank, 20-maintenance well, 21-high water level line, 22-low water level line, 23-initial state of unpowered water absorber, 24-water absorption state of unpowered water absorber, 25-inlet Pool, 26-Wetland area, 27-Second water outlet, 28-Curved grille, 29-Grill clearance, 30-Rake teeth.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments of some, but not all, of the present invention.

It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Embodiment 1 of the present invention: an unpowered constructed wetland system, including a water inlet pipe 17, a water inlet pool 25, a first water outlet pipe 18, a wetland area 26 and a second water outlet pipe 27, as shown in FIG. 1, the water inlet pipe 17 and The water inlet pool 25 is connected, the water inlet pool 25 is communicated with the wetland area 26 through the first water outlet pipe 18, the wetland area 26 is communicated with the second water outlet pipe 27, and the side of the water inlet pool 25 close to the water inlet pipe 17 is provided with a hydraulically driven slag cleaning device 3. and curved grille 28, the curved grille 28 is arranged below the hydraulically driven slag cleaning device 3; the water inlet pipe 17, the first water outlet pipe 18 and the second water outlet pipe 27 are all steel pipes; the water inlet pool 25 and the wetland area 26 are concrete structures ; Unpowered slag cleaning mechanism 3 and curved grille 28 are all steel structures.

Embodiment 2 of the present invention: an unpowered constructed wetland system, comprising a water inlet pipe 17, a water inlet pool 25, a first water outlet pipe 18, a wetland area 26 and a second water outlet pipe 27, the water inlet pipe 17 is communicated with the water inlet pool 25, The pool 25 is communicated with the wetland area 26 through the first water outlet pipe 18, and the wetland area 26 is communicated with the second water outlet pipe 27. The side of the water inlet pool 25 close to the water inlet pipe 17 is provided with a hydraulically driven slag cleaning device 3 and a curved grille 28. The curved grille 28 is arranged below the hydraulically driven slag cleaning device 3. As shown in Fig. 2 and Fig. 3, the intake tank 25 is also provided with a grid slag collection tank 19 and an unpowered water absorber 7. The grid slag collection tank 19 is arranged in the At the end of the curved grille 28, the unpowered water suction device 7 is arranged below the grid slag collection tank 19, and the unpowered water suction device 7 is communicated with the first water outlet pipe 18; the water inlet pipe 17, the first water outlet pipe 18 and the second water outlet pipe 27 are alloy metal pipes, such as iron, copper, and aluminum alloy, which are not limited here; the water inlet pool 25 and the wetland area 26 are concrete structures; the unpowered slag cleaning mechanism 3 and the curved grille 28 are alloy structures, such as Copper and aluminum alloys are not limited here.

Embodiment 3 of the present invention: an unpowered constructed wetland system, comprising a water inlet pipe 17, a water inlet pool 25, a first water outlet pipe 18, a wetland area 26 and a second water outlet pipe 27, the water inlet pipe 17 is communicated with the water inlet pool 25, The pool 25 is communicated with the wetland area 26 through the first water outlet pipe 18, and the wetland area 26 is communicated with the second water outlet pipe 27. The side of the water inlet pool 25 close to the water inlet pipe 17 is provided with a hydraulically driven slag cleaning device 3 and a curved grille 28. The curved grille 28 is arranged below the hydraulically driven slag cleaning device 3, and the intake pool 25 is also provided with a grid slag collection tank 19 and an unpowered water absorber 7. The powered water absorber 7 is arranged below the grid slag collection tank 19, and the unpowered water absorber 7 is communicated with the first water outlet pipe 18. As shown in FIG. 4 and FIG. 5, the curved grid 28 includes a grid frame 1 and a plurality of grids bar 2, a plurality of grid bars 2 are fixed on the grid frame 1, the grid bars 2 are arranged at equal intervals, and the grid bars 2 are curved structures; the water inlet pipe 17, the first water outlet pipe 18 and the second The water outlet pipes 27 are all plastic pipes; the water inlet pool 25 and the wetland area 26 are concrete structures; the unpowered slag cleaning mechanism 3 is a steel structure, and the curved grille 28 is an alloy structure, such as iron, copper, and aluminum alloy, which is not limited here. .

Embodiment 4 of the present invention: an unpowered constructed wetland system, comprising a water inlet pipe 17, a water inlet pool 25, a first water outlet pipe 18, a wetland area 26 and a second water outlet pipe 27, the water inlet pipe 17 is communicated with the water inlet pool 25, The pool 25 is communicated with the wetland area 26 through the first water outlet pipe 18, and the wetland area 26 is communicated with the second water outlet pipe 27. The side of the water inlet pool 25 close to the water inlet pipe 17 is provided with a hydraulically driven slag cleaning device 3 and a curved grille 28. The curved grille 28 is arranged below the hydraulically driven slag cleaning device 3, and the intake pool 25 is also provided with a grid slag collection tank 19 and an unpowered water absorber 7. The powered water absorber 7 is arranged below the grid slag collection tank 19, the unpowered water absorber 7 is communicated with the first water outlet pipe 18, and the curved grid 28 includes a grid frame 1 and a plurality of grid bars 2, and a plurality of grid bars 2 It is fixed on the grid frame 1, and the grid bars 2 are arranged at equal intervals. The grid bars 2 have a curved surface structure. As shown in FIG. 6, the unpowered slag cleaning mechanism 3 includes a slag cleaning paddle 4 and a support shaft. 5 and the support frame 6, the support frame 6 is fixed on the grid slag collection tank 19, the slag cleaning paddle 4 is installed on the support frame 6 through the support shaft 5, and the slag cleaning paddle 4 rotates through the support shaft 5, and is connected with the curved grid at the same time. The grid 28 is combined; the water inlet pipe 17 is a steel pipe, the first water outlet pipe 18 is a steel pipe, and the second water outlet pipe 27 is an alloy metal pipe, such as iron, copper, aluminum alloy; the water inlet pool 25 and the wetland area 26 are concrete structures; The slag mechanism 3 is an alloy structure, such as iron, copper, and aluminum alloy, which is not limited here, and the curved grid 28 is a steel structure.

Embodiment 5 of the present invention: an unpowered constructed wetland system, comprising a water inlet pipe 17, a water inlet pool 25, a first water outlet pipe 18, a wetland area 26 and a second water outlet pipe 27, the water inlet pipe 17 is communicated with the water inlet pool 25, The pool 25 is communicated with the wetland area 26 through the first water outlet pipe 18, and the wetland area 26 is communicated with the second water outlet pipe 27. The side of the water inlet pool 25 close to the water inlet pipe 17 is provided with a hydraulically driven slag cleaning device 3 and a curved grille 28. The curved grille 28 is arranged below the hydraulically driven slag cleaning device 3, and the intake pool 25 is also provided with a grid slag collection tank 19 and an unpowered water absorber 7. The powered water absorber 7 is arranged below the grid slag collection tank 19, the unpowered water absorber 7 is communicated with the first water outlet pipe 18, and the curved grid 28 includes a grid frame 1 and a plurality of grid bars 2, and a plurality of grid bars 2 It is fixed on the grid frame 1, and the grid bars 2 are arranged at equal intervals. The grid bars 2 have a curved surface structure. The support frame 6 is fixed on the grid slag collection tank 19, the slag cleaning paddle 4 is installed on the support frame 6 through the support shaft 5, the slag cleaning paddle 4 is rotated through the support shaft 5, and is set in combination with the curved grille 28 at the same time. 8, the slag cleaning paddle 4 is provided with rake teeth 30 corresponding to the grille gaps 29 on the curved grille 28. During operation, the rake teeth 30 are inserted into the grille gaps 29, and the rake teeth 30 are inserted into the grille gap 29. Remove slag. As shown in FIG. 7 , the unpowered water suction device 7 includes a pipeline 8, a hose 9, a counterweight device, a supporting device and a water intake head 16. The non-powered water suction device 7 is fixed to the bottom of the water inlet pool 25 through the supporting device, and the water intake head 16 is arranged at the bottom of the water inlet 25. One end of the pipeline 8 is communicated with the pipeline 8, the other end of the pipeline 8 is connected with the hose 9, the counterweight device is arranged below the pipeline 8, the water inlet pipe 17 is a steel pipe, and the first water outlet pipe 18 is an alloy metal pipe, such as iron, Copper and aluminum alloys are not limited here. The second water outlet pipe 27 is a plastic pipe; the water inlet pool 25 and the wetland area 26 are concrete structures; the unpowered slag cleaning mechanism 3 and the curved grille 28 are both steel structures; The hoses 9 are all made of plastic; the water intake head 16 is a steel mesh structure, and an inspection well 20 is also provided in the water inlet pool 3 .

Embodiment 6 of the present invention: an unpowered constructed wetland system, comprising a water inlet pipe 17, a water inlet pool 25, a first water outlet pipe 18, a wetland area 26 and a second water outlet pipe 27, the water inlet pipe 17 is communicated with the water inlet pool 25, The pool 25 is communicated with the wetland area 26 through the first water outlet pipe 18, and the wetland area 26 is communicated with the second water outlet pipe 27. The side of the water inlet pool 25 close to the water inlet pipe 17 is provided with a hydraulically driven slag cleaning device 3 and a curved grille 28. The curved grille 28 is arranged below the hydraulically driven slag cleaning device 3, and the intake pool 25 is also provided with a grid slag collection tank 19 and an unpowered water absorber 7. The powered water absorber 7 is arranged below the grid slag collection tank 19, the unpowered water absorber 7 is communicated with the first water outlet pipe 18, and the curved grid 28 includes a grid frame 1 and a plurality of grid bars 2, and a plurality of grid bars 2 It is fixed on the grid frame 1, and the grid bars 2 are arranged at equal intervals. The grid bars 2 have a curved surface structure. The support frame 6 is fixed on the grid slag collection tank 19, the slag cleaning paddle 4 is installed on the support frame 6 through the support shaft 5, the slag cleaning paddle 4 is rotated through the support shaft 5, and is combined with the curved grid 28 at the same time, as shown in the figure. 7, the unpowered water suction device 7 includes a pipeline 8, a hose 9, a counterweight device, a support device and a water intake head 16. The unpowered water suction device 7 is fixed at the bottom of the water inlet pool 25 through the support device, and the water intake head 16 is arranged on the pipeline 8. One end is connected with the pipeline 8, the other end of the pipeline 8 is connected with the hose 9, and the counterweight device is arranged below the pipeline 8; as shown in Figure 7, the counterweight device includes a counterweight block 10, a chain 11 and a hook 12, The hook 12 is fixed on the pipe 8, one end of the chain 11 is hung on the hook 12, and the other end is hung with a counterweight 10; as shown in FIG. 7, the support device includes a support rod 13, a support ring 14 and a support base 15. One end of the rod 13 is connected with the support ring 14, and the other end is connected with the support base 15. The support base 15 is fixed at the bottom of the water inlet pool 15, the water inlet pipe 17 is a steel pipe, and the first water outlet pipe 18 is an alloy metal pipe, such as iron, copper, Aluminum alloy, not limited here, the second water outlet pipe 27 is a steel pipe; the water inlet pool 25 and the wetland area 26 are concrete structures; the unpowered slag cleaning mechanism 3 and the curved grille 28 are both steel structures; The hose 9 is made of a metal material with certain ductility, such as an aluminum alloy, which is not limited here;

Working principle: The sewage to be treated flows into the hydraulically driven slag cleaning device 3 from the water inlet pipe 17. Due to a certain hydraulic elevation difference, the sewage hits the slag cleaning paddle 4 of the hydraulically driven slag cleaning device 3, causing the hydraulically driven slag cleaning device. 3 rotates counterclockwise, the sewage passes through the curved grid 28 under the hydraulically driven slag cleaning device 3, and the large domestic garbage is intercepted by the curved grid 28, and is cleaned by the rotating hydraulically driven slag cleaning device 3 into the grid slag collection tank 19 , In order to better collect the cleaned domestic garbage, the screen slag collection tank 19 has a certain slope, and its slope is 10%.

Rural domestic sewage has unstable water volume, with three peak periods in the morning, middle and evening, and less water at other times. When the sewage does not exceed the high water level line 21 in the inlet pool 25, as shown in FIG. 2, the unpowered water absorber 7 will be in the initial state 23 due to the suspended counterweight 10, and the sewage water level is lower than the water intake head 16 of the unpowered water absorber 7 , can not enter the subsequent treatment unit; with the increase of water volume, when the sewage exceeds the high water level line 21, the sewage flows into the water intake head 16 of the unpowered water suction device 7, and when the gravity of the water is greater than the weight of the counterweight 10, the unpowered water absorption The device 7 is in the water absorption state 24, the sewage is sucked into the first water outlet pipe 18 and enters the subsequent wetland area 26 for treatment, and the treated water flows out from the second water outlet pipe 27 of the wetland area 26; when the amount of sewage water decreases, the water level drops to a low water level At line 22, since the gravity of the water is less than the weight of the counterweight 10, the unpowered water aspirator 7 returns to the initial state 23, and the water intake stops.

The present invention utilizes water power to drive the slag cleaning device to realize automatic slag cleaning, without the need for electric drive and frequent manual cleaning; in addition, the unique non-power water suction device 7 uses its own structure to replace the traditional water pump that requires electric power, It is more suitable for the instability of rural sewage inflow, so that the subsequent constructed wetlands can evenly distribute water, and give full play to its purification ability. This unpowered and unpowered constructed wetland system can make the constructed wetland technology popularized in the vast rural areas where the infrastructure is not perfect and cannot supply electricity, protect the local ecological environment, and has a good application prospect.

Claims (10)

1. An unpowered constructed wetland system is characterized in that: including inlet tube (17), intake pool (25), first outlet pipe (18), wetland area (26) and second outlet pipe (27), inlet tube (17) with intake pool (25) intercommunication, intake pool (25) pass through first outlet pipe (18) with wetland area (26) intercommunication, wetland area (26) with second outlet pipe (27) intercommunication, be close to in intake pool (25) one side of inlet tube (17) is provided with hydraulic drive scarfing cinder device (3) and curved surface grid (28), curved surface grid (28) set up in the below of hydraulic drive scarfing cinder device (3).

2. The unpowered constructed wetland system of claim 1, wherein: still be provided with bars sediment collecting pit (19) and unpowered water absorber (7) in intake chamber (25), bars sediment collecting pit (19) set up in the tail end of curved surface grid (28), unpowered water absorber (7) set up in the below of bars sediment collecting pit (19), unpowered water absorber (7) with first outlet pipe (18) intercommunication.

3. The unpowered constructed wetland system of claim 2, wherein: the curved surface grating (28) comprises a grating frame (1) and a plurality of grating strips (2), and the plurality of grating strips (2) are fixed on the grating frame (1); the grid bars (2) are arranged at equal intervals and form grid gaps (29); the grid bars (2) are of curved surface structures.

4. The unpowered constructed wetland system of claim 3, wherein: the hydraulic drive slag removing device (3) comprises a slag removing paddle board (4), a supporting shaft (5) and a supporting frame (6), the supporting frame (6) is fixed on the grid slag collecting pool (19), the slag removing paddle board (4) is installed on the supporting frame (6) through the supporting shaft (5), the slag removing paddle board (4) rotates through the supporting shaft (5),

rake teeth (30) which are arranged corresponding to the grid gaps (29) on the curved grid (28) are arranged on the slag removing paddle board (4).

5. The unpowered constructed wetland system of claim 2, wherein: unpowered water absorber (7) includes pipeline (8), hose (9), counter weight device, strutting arrangement and water intaking head (16), and unpowered water absorber (7) are fixed in intake chamber (25) bottom through strutting arrangement, water intaking head (16) set up in the one end of pipeline (8) and with pipeline (8) intercommunication, the other end of pipeline (8) with hose (9) are connected, the counter weight device set up in the below of pipeline (8).

6. The unpowered constructed wetland system of claim 5, wherein: the counterweight device comprises a counterweight block (10), a chain (11) and a hook (12), wherein the hook (12) is fixed on the pipeline (8), one end of the chain (11) is hung on the hook (12), and the other end of the chain is hung on the counterweight block (10).

7. The unpowered constructed wetland system of claim 5, wherein: the supporting device comprises a supporting rod (13), a supporting ring (14) and a supporting base (15), one end of the supporting rod (13) is connected with the supporting ring (14), the other end of the supporting rod is connected with the supporting base (15), and the supporting base (15) is fixed at the bottom of the water inlet pool (25).

8. The unpowered constructed wetland system of any one of claims 1 to 7, wherein: the water inlet pipe (17), the first water outlet pipe (18) and the second water outlet pipe (27) are alloy metal pipes, steel pipes or plastic pipes; the water inlet pool (25) and the wetland area (26) are of concrete structures.

9. The unpowered constructed wetland system of claim 9, wherein: the hydraulically-driven slag removal device (3) and the curved surface grating (28) are of steel structures or alloy structures; the pipe (8) and the hose (9) are made of plastic or metal with certain ductility.

10. The unpowered constructed wetland system of claim 9, wherein: the water intake head (16) is of a steel or alloy net structure, and the water intake pool (25) is also provided with a maintenance well (20).

Images