A kind of enhanced denitrification artificial wetland system and construction method thereof

Abstract

The present invention discloses an enhanced denitrification artificial wetland system and a construction method thereof, comprising an artificial wetland pool, a water inlet pool is provided on one side of the artificial wetland pool, a connected drainage pipe is provided at the bottom of the other side, wetland plants are planted on the artificial wetland pool, an assembly slot is provided on the artificial wetland pool, a double-axis rotating device, a water supply pipe and a high-pressure pump body are provided in the assembly slot, one end of the water supply pipe extends into the water inlet pool, and the other end is connected to an oxygenation spray assembly, the high-pressure pump body is provided on the water supply pipe and the impeller of the high-pressure pump body is connected to the first output end of the double-axis rotating device, and a reciprocating moving part is provided at the bottom of the oxygenation spray assembly. The present invention allows the water source to be treated to be sprayed from top to bottom on the artificial wetland pool, on the one hand, the oxygen content in the water source is increased, and on the other hand, the oxygenation spray assembly reciprocates, so that the wetland plants can be fully in contact with the water source to be treated, ensuring the denitrification effect of the wetland plants on the water source.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial wetlands, and in particular to an enhanced denitrification artificial wetland system and a construction method thereof. Background Art

[0002] Denitrification in artificial wetlands is a complex process. Currently, most artificial wetland systems use a variety of fillers and plants to synergistically enhance the denitrification efficiency of the system.

[0003] Publication No.: CN218868812U proposes an artificial wetland oxygenation device, which includes a water storage tank, a water collection chamber and a soil layer. A water storage tank is provided at one end of the soil layer, and a water pump is installed at the bottom of the water storage tank away from one end of the soil layer. A water collection chamber is provided inside the soil layer, and wetland planting troughs are evenly arranged on the top of the soil layer. A fixing plate is installed at one end of the top of the soil layer close to the water storage tank, and an oxygenation spray water pipe is installed at one end of the fixing plate close to the soil layer.

[0004] Although the above-mentioned artificial wetland oxygenation device can increase the oxygen content in the water body, its nozzle is located on one side of the wetland plants. When in use, the treated water source sprayed by the nozzle impacts the side of the planted wetland plants, which is easy to injure the wetland plants and cause damage to the wetland plants. At the same time, the range of wetland plants contacted by the treated water source is small. As the wetland plants grow, when their height is higher than the water spraying level of the nozzle, the wetland plants far away from the nozzle cannot effectively treat the treated water source, affecting the denitrification effect of the wetland plants on the water source.

[0005] To this end, we propose an enhanced denitrification artificial wetland system and its construction method. Summary of the invention

[0006] The object of the present invention is to provide an enhanced denitrification artificial wetland system and a construction method thereof to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A system for enhancing denitrification artificial wetland comprises an artificial wetland pool, a water inlet pool is arranged on one side of the artificial wetland pool, a connected drainage pipe is arranged at the bottom of the other side, wetland plants are planted on the artificial wetland pool, an assembly groove is opened on the artificial wetland pool, a double-axis rotating device, a water supply pipe and a high-pressure pump body are arranged in the assembly groove, one end of the water supply pipe extends into the water inlet pool, and the other end is connected to an oxygenation spray assembly, the high-pressure pump body is arranged on the water supply pipe and the impeller of the high-pressure pump body is connected to the first output end of the double-axis rotating device, a reciprocating moving part is arranged at the bottom of the oxygenation spray assembly, the reciprocating moving part is arranged on the artificial wetland pool and is transmission-connected to the second output end of the double-axis rotating device, and the double-axis rotating device drives the oxygenation spray assembly to reciprocate horizontally above the wetland plant planting area.

[0009] A further improvement is that the reciprocating moving part includes a connecting frame arranged at the bottom of the oxygen enrichment spray assembly, the connecting frame is slidably arranged in a track, the track is arranged at the top of the artificial wetland pool, a reciprocating screw with a thread passing through the connecting frame is rotatable in the track, one end of the reciprocating screw is transmission-connected to a driven shaft, the driven shaft is rotationally arranged in an assembly groove and is transmission-connected to the second output end of the dual-axis rotating device.

[0010] A further improvement is that the oxygen enrichment spray assembly includes mounting frames detachably connected to both ends of the top of the connecting frame, a diverter seat connected to the water supply pipe is provided between the two groups of mounting frames, and a plurality of groups of interconnected spray heads are provided at the bottom of the diverter seat along its width direction.

[0011] A further improvement is that a wetland plant treatment unit is provided on the two groups of mounting frames and below the sprinkler heads;

[0012] The wetland plant processing part includes a carrier frame which is respectively inclined at the outside of two groups of mounting frames, and a cut-resistant conveyor belt is provided between the two groups of carrier frames for transmission. Through holes are evenly opened on the cut-resistant conveyor belt, and a roller body of the cut-resistant conveyor belt is driven to rotate by a rotating device arranged on the carrier frame. A side hollow shell is provided on the outside of the lower end of the carrier frame, and a hollow seat is provided between the two groups of side hollow shells. A transmission shaft is rotatably provided in the hollow seat, and one end of the transmission shaft extends into a side hollow shell and is transmission-connected to one end of the roller body located at a lower position. Cutting impeller groups are provided on both sides of the top of the hollow seat, and the shafts of the two groups of cutting impeller groups extend into the hollow seat and are transmission-connected through gear parts. The shaft of one cutting impeller group is transmission-connected to the transmission shaft, and the two groups of cutting impeller groups are used to synchronously rotate with each other when the transmission shaft rotates to cut wetland plants and move the cut wetland plants to the top of the cut-resistant conveyor belt.

[0013] A further improvement is that a crushing part connected to the mounting frame is provided at the higher end of the anti-cutting conveyor belt, and the crushing part includes a collecting and processing shell, and a feeding port for the higher end of the anti-cutting conveyor belt to extend into is opened on one side of the collecting and processing shell, and a crushing assembly is provided in the collecting and processing shell for crushing the wetland plants input by the anti-cutting conveyor belt;

[0014] The crushing assembly includes two groups of crushing roller groups, and the shafts of the two groups of crushing roller groups are connected by a gear group. A screen is provided below the crushing roller group through a torsion spring, and the end of the screen away from the torsion spring is placed on a protrusion extending inward from the inner wall of the collecting and processing shell. A cam member 1 is abutted at the bottom of the screen, and the cam member 1 is rotatably arranged in the inner cavity of the collecting and processing shell. A follower gear is embedded in the top of the collecting and processing shell, and the follower gear is meshed with a flexible rack arranged on the anti-cut conveyor belt. The shaft of the follower gear, the shaft of the cam member 1 and the shaft of a crushing roller group are all connected by a sprocket transmission group. The bottom of the collecting and processing shell is connected to an external suction device through a discharge pipe.

[0015] A further improvement is that the two ends of the diverter seat are respectively slidably connected to the vertical through openings opened on the two groups of mounting frames, the inner wall of one end of the vertical through opening is connected to the diverter seat through a spring, a cutting knife is also provided at the bottom of the diverter seat, a contact rod is provided at one end of the diverter seat, and a cam member 2 is provided on the supporting frame and is transmission-connected to a roller body, the cam member 2 is slidably abutted against the contact rod to drive the contact rod to move reciprocally up and down.

[0016] A further improvement is that a movable opening is provided on the cutting knife, a movable baffle is horizontally movably provided in the movable opening, an electromagnetic component is provided on the side of the movable baffle facing the cutting knife, a permanent magnet that is adsorbed by the energized electromagnetic component is embedded in the cutting knife, the movable baffle moves horizontally to the bottom of the spray head when the electromagnetic component is energized, and a cleaning pad for contacting the bottom of the spray head is provided on the top of the movable baffle.

[0017] A further improvement is that a photovoltaic power supply device and a controller are provided on the collection and processing shell, and the photovoltaic power supply device and the controller are electrically connected to the rotating device and the electromagnetic component.

[0018] A further improvement is that a plurality of filler layers are provided in the artificial wetland pool, and the plurality of filler layers include a gravel filler layer, a ceramsite filler layer, a zeolite filler layer and a planting filler layer which are sequentially laid in the artificial wetland pool from bottom to top.

[0019] A method for constructing an enhanced denitrification artificial wetland system, used to construct the artificial wetland system as described above, comprises the following steps:

[0020] S1: construct an inlet pool and an artificial wetland pool with an assembly tank, and plant wetland plants on the artificial wetland pool;

[0021] S2: Install the dual-axis rotating device, the water supply pipe and the high-pressure pump body in the assembly tank, connect the first output end of the dual-axis rotating device to the impeller of the high-pressure pump body, and connect the water inlet pool and the oxygenation spray assembly through the water supply pipe;

[0022] S3: Install a reciprocating member on the top of the artificial wetland pool and drive connect it to the second output end of the dual-axis rotating device, and then install the oxygen-enhancing spray assembly on the reciprocating member.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) The water source to be treated in the water inlet pool of the present invention enters the oxygenation spray assembly, so that the water source to be treated is sprayed from top to bottom on the artificial wetland pool, so that the water is fully in contact with the air. On the one hand, the oxygen content in the water source is increased, and the artificial wetland is assisted in the denitrification effect of the water source. On the other hand, the driven shaft drives the reciprocating screw, and the reciprocating screw drives the connecting frame to drive the oxygenation spray assembly to move back and forth along the track, so that the wetland plants can be fully in contact with the water source to be treated, ensuring the denitrification effect of the wetland plants on the water source. At the same time, the downward water source to be treated contacts the wetland plants from top to bottom, which will not cause excessive impact on the wetland plants, ensuring the stable growth of the wetland plants;

[0025] 2) The present invention is also provided with a wetland plant processing unit. When the growth height of the wetland plants affects the oxygenation spray assembly in the later stage, the wetland plant processing unit can cut the wetland plants when the oxygenation spray assembly moves, so that the wetland plants are maintained at the required height, and the cut wetland plants can be transmitted to the processing unit for crushing, so that users can use them to make organic fertilizers, feed, etc. in the future. On the one hand, it reduces resource waste and negative impacts on the environment, and also helps to maintain the stability and biodiversity of the wetland ecosystem. On the other hand, it does not require manual regular treatment, reduces manual labor intensity and labor costs, and ensures the treatment stability of the artificial wetland system for the water source to be treated. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure A;

[0028] Figure 3 It is a schematic diagram of the structure of the oxygen-enhancing spray assembly of the present invention;

[0029] Figure 4 For the present invention Figure 3 Another perspective structural diagram;

[0030] Figure 5For the present invention Figure 3 Structural cross-section view;

[0031] Figure 6 It is a schematic diagram of the movable baffle structure of the present invention.

[0032] In the figure: 1, artificial wetland pool; 2, drainage pipe; 3, gravel filling layer; 4, ceramsite filling layer; 5, zeolite filling layer; 6, oxygen-enhancing spray assembly; 61, mounting frame; 62, bearing frame; 63, anti-cutting conveyor belt; 64, side hollow shell; 65, hollow seat; 66, transmission shaft; 67, cutting impeller group; 68, collection and processing shell; 69, follower gear; 610, crushing roller group; 611, gear group; 612, cam member 1; 613. Cam member 2; 614. Screen; 615. Feed port; 616. Photovoltaic power supply device; 617. Diverter seat; 618. Cutting knife; 619. Sprinkler head; 620. Controller; 621. Electromagnetic member; 622. Movable baffle; 7. Wetland plants; 8. Water inlet pool; 9. Dual-axis rotating device; 10. High-pressure pump body; 11. Driven shaft; 12. Track; 13. Reciprocating screw; 14. Connecting frame; 15. Water supply pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see attached Figure 1

[0036] An enhanced denitrification artificial wetland system comprises an artificial wetland pool 1, the artificial wetland pool 1 is rectangular, a water inlet pool 8 is provided on one side of the artificial wetland pool 1, and a connected drainage pipe 2 is provided at the bottom of the other side. A filtering structure can be provided in the water inlet pool 8 to filter large particles in the incoming water source, and wetland plants 7 are planted on the artificial wetland pool 1, and the wetland plants 7 are preferably reeds;

[0037] The artificial wetland pool 1 is also provided with several filling layers, including a gravel filling layer 3, a ceramsite filling layer 4, a zeolite filling layer 5 and a planting filling layer, which are sequentially laid in the artificial wetland pool 1 from bottom to top. The planting filling layer is, for example, clay; the filling layer is used to enhance the denitrification effect of the artificial wetland, and is certainly not limited to the above-mentioned filling layers;

[0038] The artificial wetland pool 1 is provided with an assembly groove, which is provided with a double-axis rotating device 9, which is a double-axis motor widely used in the art, a water supply pipe 15 and a high-pressure pump body 10;

[0039] One end of the water supply pipe 15 extends into the water inlet pool 8, and the other end is connected to the oxygenation spray assembly 6. The high-pressure pump body 10 is arranged on the water supply pipe 15, and the impeller of the high-pressure pump body 10 is connected to the first output end of the dual-axis rotating device 9. The water source to be treated first enters the water inlet pool 8. When the dual-axis rotating device 9 is working, the high-pressure pump body 10 works to pump the water in the water inlet pool 8 into the oxygenation spray assembly 6, so that the water source to be treated is sprayed from top to bottom on the artificial wetland pool 1, so that the water can be fully in contact with the air, so as to increase the oxygen content in the water source and improve the effect of the artificial wetland on denitrification of the water source;

[0040] A reciprocating member is provided at the bottom of the oxygenating spray assembly 6, which is arranged on the artificial wetland pool 1 and is transmission-connected to the second output end of the dual-axis rotating device 9. The dual-axis rotating device 9 drives the oxygenating spray assembly 6 to reciprocate horizontally above the planting area of ​​the wetland plants 7; when the dual-axis rotating device 9 is working, the oxygenating spray assembly 6 is also reciprocated, so that the wetland plants 7 can be fully contacted with the water source to be treated, and the downward water source to be treated contacts with the wetland plants 7 from top to bottom, which has a small impact on the wetland plants 7, thereby ensuring the stable growth of the wetland plants 7.

[0041] Please see attached Figure 2 -Attached Figure 3

[0042] Preferably, the reciprocating moving part of this embodiment includes a connecting frame 14 arranged at the bottom of the oxygen enrichment spray assembly 6, the connecting frame 14 is slidably arranged in the track 12, the track 12 is arranged at the top of the artificial wetland pool 1, and a reciprocating screw 13 with a thread running through the connecting frame 14 is rotated in the track 12. One end of the reciprocating screw 13 is transmission-connected to a driven shaft 11, and the driven shaft 11 is rotationally arranged in the assembly groove and transmission-connected to the second output end of the dual-axis rotating device 9. For example, the reciprocating screw 13 and the driven shaft 11 can be transmission-connected by a bevel gear set (two sets of meshing bevel gears), and the driven shaft 11 and the second output end of the dual-axis rotating device 9 are transmission-connected by a sprocket transmission group (including a sprocket and a chain).

[0043] Preferably, the oxygen enrichment spray assembly 6 of the present embodiment includes mounting frames 61 which are detachably connected to the two ends of the top of the connecting frame 14, for example, the connecting frame 14 and the mounting frame 61 are connected by bolts, which is convenient for the later maintenance of the oxygen enrichment spray assembly 6; a diverter seat 617 connected to the water supply pipe 15 is provided between the two groups of mounting frames 61, and a plurality of groups of interconnected spray heads 619 are provided at the bottom of the diverter seat 617 along its width direction, and the water source to be treated first enters the diverter seat 617 through the water supply pipe 15 and then is sprayed downward from the spray head 619.

[0044] In order to prevent the wetland plants from growing too high in the later stage and affecting the spraying of the sprinkler head 619, as a preferred embodiment, a wetland plant processing unit is provided on the two sets of mounting frames 61 of this embodiment and below the sprinkler head 619, and the wetland plants are cut when they reach the height that needs to be cut;

[0045] The wetland plant treatment unit includes a support frame 62 which is respectively arranged obliquely on the outside of the two sets of mounting frames 61. Figure 2 It can be seen that the end of the support frame 62 facing the water inlet pool 8 is higher than the end thereof away from the water inlet pool 8;

[0046] An anti-cutting conveyor belt 63 is provided between the two groups of carriers 62. The anti-cutting conveyor belt 63 is, for example, a steel belt conveyor belt or a PU (polyurethane) material conveyor belt. Through holes are evenly opened on the anti-cutting conveyor belt 63, which does not affect the downward flow of the treated water source sprayed downward by the upper sprinkler head 619, and reduces the impact of the downward water source on the wetland plants.

[0047] A roller of the anti-cut conveyor belt 63 is driven to rotate by a rotating device (not shown in the figure) arranged on the carrier frame 62, and the rotating device is, for example, a motor.

[0048] A side hollow shell 64 is provided on the outer side of the lower end of the carrier 62, and a hollow seat 65 is provided between the two groups of side hollow shells 64. A transmission shaft 66 is rotatably provided in the hollow seat 65, and the axis of the transmission shaft 66 is parallel to the width of the hollow seat 65. One end of the transmission shaft 66 extends into the side hollow shell 64 and is connected to one end of the roller body at a lower position for following the rotation of the roller body. For example, the transmission shaft 66 and one end of the roller body can adopt a sprocket transmission group or a gear member (the gear member is two groups of meshing gears), etc., which can be selected according to actual conditions and will not be described in detail here; cutting impeller groups 67 are provided on both sides of the top of the hollow seat 65. The cutting impeller group 67 is shown in the attached figure. Figure 2 -Attached Figure 3 As shown, it includes a shaft and blades sleeved on the outer wall of the shaft, and the blades are arc-shaped. The shafts of the two groups of cutting impeller groups 67 extend into the hollow seat 65 and are connected by gear transmission, so that the two groups of cutting impeller groups 67 rotate in opposite directions. The shaft of one cutting impeller group 67 is connected by transmission with the transmission shaft 66, for example, a bevel gear group can be used, so that the rotational force of the transmission shaft 66 is transmitted to the cutting impeller group 67;

[0049] The two groups of cutting impellers 67 are used to synchronously rotate with each other when the transmission shaft 66 rotates to cut the wetland plants 7 and move the cut wetland plants 7 to the top of the anti-cutting conveyor belt 63 so that the cut wetland plants 7 can be processed and effectively utilized.

[0050] Please see attached Figure 4

[0051] Preferably, a crushing part connected to the mounting frame 61 is provided at the higher end of the anti-cutting conveyor belt 63 of this embodiment, and the crushing part includes a collecting and processing shell 68, and a feeding port 615 for the higher end of the anti-cutting conveyor belt 63 to extend into is opened on one side of the collecting and processing shell 68, and a crushing assembly is provided in the collecting and processing shell 68 for crushing the wetland plants 7 input by the anti-cutting conveyor belt 63; the crushed wetland plants 7 are convenient for users to make organic fertilizers and feeds, and can also be further processed into other products;

[0052] The crushing assembly includes two groups of crushing roller groups 610, and the crushing roller group 610 includes an axis and a crushing roller sleeved on the outside of the axis. The axis of the two groups of crushing roller groups 610 is connected by a gear group 611 for driving the two groups of crushing roller groups 610 to rotate inward synchronously. A screen 614 is provided below the crushing roller group 610 through a torsion spring rotation to screen the wetland plants 7 crushed by the crushing roller group 610 so that the crushed wetland plants 7 meet the subsequent use standards. The end of the screen 614 away from the torsion spring is placed on a protrusion extending inward from the inner wall of the collection and processing shell 68. The bottom of the screen 614 is abutted with a cam member 612, and the cam member 612 is rotatably arranged in the inner cavity of the collection and processing shell 68. A follower gear 69 is embedded on the top of the collection and processing shell 68. The follower gear 69 is connected to the anti-cut conveyor belt 63. The flexible rack is meshed, and the flexible rack has the same shape as the anti-cutting conveyor belt 63, both of which are elliptical. When the anti-cutting conveyor belt 63 is transmitted, the flexible rack drives the follower gear 69 to rotate, and the shaft of the follower gear 69, the shaft of the cam member 612 and the shaft of a crushing roller group 610 are all connected through a sprocket transmission group. When the follower gear 69 is driven to rotate, the sprocket transmission group drives the crushing roller group 610 and the cam member 612 to rotate and reciprocate to push the screen 614, so that the screen 614 vibrates, so that the crushed wetland plants 7 are downward, and the bottom of the collection and processing shell 68 is connected to the external extraction equipment through a discharge pipe. The external extraction equipment is, for example, a pump body, so as to extract the crushed wetland plants 7 in the collection and processing shell 68 to a designated position for effective utilization.

[0053] Preferably, the two ends of the diverter seat 617 of this embodiment are respectively slidably connected to the vertical passages opened on the two groups of mounting frames 61, and the inner wall of one end of the vertical passage is connected to the diverter seat 617 through a spring. A cutting knife 618 is also provided at the bottom of the diverter seat 617, which is adapted to the width of the anti-cut conveyor belt 63. A contact rod is provided at one end of the diverter seat 617, and a cam member 613 connected to a roller body is provided on a supporting frame 62. For example, the shaft of the cam member 613 and a roller body are connected through a sprocket transmission group, and the cam member 613 is slidably abutted against the contact rod to drive the contact rod to move back and forth up and down, and then the cutting knife 618 reciprocates up and down to cut the wetland plants 7 on the anti-cut conveyor belt 63, and preliminary processing is performed on the wetland plants 7 when they enter the crushing section to ensure that the wetland plants 7 enter the crushing section smoothly, reduce the processing burden of the crushing section, and improve the processing quality of the wetland plants 7.

[0054] Preferably, the cutting knife 618 of this embodiment is provided with a movable opening, in which a movable baffle 622 is horizontally movable and movably provided, an electromagnetic component 621 is provided on the side of the movable baffle 622 facing the cutting knife 618, a permanent magnet adsorbed by the energized electromagnetic component 621 is embedded in the cutting knife 618, the movable baffle 622 moves horizontally to the bottom of the spray head 619 when the electromagnetic component 621 is energized, and a cleaning pad for contacting the bottom of the spray head 619 is provided on the top of the movable baffle 622;

[0055] In order to prevent the juice or debris of the wetland plants 7 transported on the anti-cut conveyor belt 63 from entering the upper spray head 619 and causing clogging of the spray head 619 when the cutting knife 618 is cut, when the rotating equipment is turned on to treat the wetland plants, the electromagnetic component 621 can be turned on synchronously, and the bottom of the spray head 619 can be closed by the movable baffle 622. The cleaning pad on the movable baffle 622 can play a certain cleaning role on the bottom of the spray head 619 (that is, its water outlet end) when the movable baffle 622 moves.

[0056] Since the spray head 619 of the present application is located above the anti-cutting conveyor belt 63, the water source to be treated also has a certain cleaning effect on the anti-cutting conveyor belt 63 after being sprayed out by the spray head 619, so that the juice or debris remaining on the anti-cutting conveyor belt 63 can fall down into the artificial wetland pool 1 along with the water source to be treated.

[0057] Preferably, a photovoltaic power supply device 616 and a controller 620 are provided on the collection and processing shell 68 of this embodiment, and the photovoltaic power supply device 616 and the controller 620 are electrically connected to the rotating equipment and the electromagnetic component 621; the photovoltaic power supply device 616 is used to provide power, and the controller 620 can also be connected to a wireless communication module for controlling the electrical components in this system.

[0058] A method for constructing an enhanced denitrification artificial wetland system, used to construct the above artificial wetland system, comprises the following steps:

[0059] S1: constructing a water inlet pool 8 and an artificial wetland pool 1 with an assembly tank, and planting wetland plants 7 on the artificial wetland pool 1;

[0060] S2: Install the dual-axis rotating device 9, the water supply pipe 15 and the high-pressure pump body 10 in the assembly tank, connect the first output end of the dual-axis rotating device 9 to the impeller of the high-pressure pump body 10, and connect the water inlet pool 8 and the oxygenation spray assembly 6 through the water supply pipe 15;

[0061] S3: A reciprocating member is installed on the top of the artificial wetland pool 1 and is transmission-connected to the second output end of the dual-axis rotating device 9, and then the oxygen-enhancing spray assembly 6 is installed on the reciprocating member.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An enhanced denitrification artificial wetland system, comprising an artificial wetland pool (1), a water inlet pool (8) being provided on one side of the artificial wetland pool (1), and a connected drainage pipe (2) being provided at the bottom of the other side, and wetland plants (7) being planted on the artificial wetland pool (1), characterized in that: The artificial wetland pool (1) is provided with an assembly groove, in which a double-axis rotating device (9), a water supply pipe (15) and a high-pressure pump body (10) are arranged. One end of the water supply pipe (15) extends into the water inlet pool (8), and the other end is communicated with the oxygenation spray assembly (6). The high-pressure pump body (10) is arranged on the water supply pipe (15), and the impeller of the high-pressure pump body (10) is connected to the first output end of the double-axis rotating device (9). A reciprocating moving part is arranged at the bottom of the oxygenation spray assembly (6). The reciprocating moving part is arranged on the artificial wetland pool (1) and is transmission-connected to the second output end of the double-axis rotating device (9). The double-axis rotating device (9) drives the oxygenation spray assembly (6) to reciprocate horizontally above the planting area of ​​the wetland plants (7); The oxygen enrichment spray assembly (6) comprises mounting frames (61) respectively detachably connected to the two ends of the top of the connecting frame (14); a flow diverter seat (617) connected to the water supply pipe (15) is provided between two groups of the mounting frames (61); and a plurality of groups of interconnected spray heads (619) are provided at the bottom of the flow diverter seat (617) along its width direction; A wetland plant treatment unit is provided on the two groups of mounting frames (61) and below the spray heads (619); The wetland plant treatment unit comprises a support frame (62) which is respectively inclinedly arranged on the outside of two groups of mounting frames (61); an anti-cutting conveyor belt (63) is arranged between the two groups of the support frames (62); through holes are evenly arranged on the anti-cutting conveyor belt (63); a roller body of the anti-cutting conveyor belt (63) is driven to rotate by a rotating device arranged on the support frame (62); a side hollow shell (64) is arranged on the outside of the lower end of the support frame (62); a hollow seat (65) is arranged between the two groups of the side hollow shells (64); a transmission shaft (66) is rotatably arranged in the hollow seat (65); the transmission shaft One end of the (66) extends into a hollow shell (64) on one side and is transmission-connected to one end of a roller body located at a lower position; cutting impeller groups (67) are provided on both sides of the top of the hollow seat (65); the shafts of the two groups of cutting impeller groups (67) extend into the hollow seat (65) and are transmission-connected through gear parts; the shaft of one of the cutting impeller groups (67) is transmission-connected to the transmission shaft (66); the two groups of cutting impeller groups (67) are used to synchronously rotate with each other when the transmission shaft (66) rotates to cut the wetland plants (7) and move the cut wetland plants (7) to the top of the anti-cutting conveyor belt (63); A crushing part connected to the mounting frame (61) is provided at the higher end of the anti-cutting conveyor belt (63), and the crushing part includes a collecting and processing shell (68). A feeding port (615) is provided on one side of the collecting and processing shell (68) for the higher end of the anti-cutting conveyor belt (63) to extend into. A crushing assembly is provided in the collecting and processing shell (68) for crushing the wetland plants (7) input by the anti-cutting conveyor belt (63); The pulverizing assembly comprises two groups of pulverizing roller groups (610), the shafts of the two groups of pulverizing roller groups (610) are connected by a gear group (611), a screen (614) is provided below the pulverizing roller group (610) through a torsion spring, one end of the screen (614) away from the torsion spring rests on a protrusion extending inwardly from the inner wall of the collection and processing shell (68), the bottom of the screen (614) abuts against a cam member 1 (612), and the cam member 1 (612) rotates The collecting and processing shell (68) is movable in the inner cavity, and a follower gear (69) is embedded in the top of the collecting and processing shell (68). The follower gear (69) is meshed with a flexible rack arranged on the anti-cutting conveyor belt (63). The shaft of the follower gear (69), the shaft of the cam member (612) and the shaft of a crushing roller group (610) are all connected through a sprocket transmission group. The bottom of the collecting and processing shell (68) is connected to an external extraction device through a discharge pipe.

2. The artificial wetland system according to claim 1, characterized in that: The reciprocating moving part comprises a connecting frame (14) arranged at the bottom of the oxygen-enhancing spray assembly (6), the connecting frame (14) is slidably arranged in a track (12), the track (12) is arranged at the top of the artificial wetland pool (1), a reciprocating screw (13) with a thread penetrating the connecting frame (14) is rotatably arranged in the track (12), one end of the reciprocating screw (13) is drivingly connected to a driven shaft (11), the driven shaft (11) is rotatably arranged in the assembly groove and is drivingly connected to the second output end of the dual-axis rotating device (9).

3. The artificial wetland system according to claim 1, characterized in that: The two ends of the diverter seat (617) are respectively slidably connected to the vertical openings opened on the two groups of mounting frames (61); the inner wall of one end of the vertical opening is connected to the diverter seat (617) through a spring; a cutting knife (618) is also provided at the bottom of the diverter seat (617); a contact rod is provided at one end of the diverter seat (617); a cam member (613) connected to a roller body is provided on the support frame (62); the cam member (613) is slidably abutted against the contact rod to drive the contact rod to move back and forth up and down.

4. The artificial wetland system according to claim 3, characterized in that: The cutting knife (618) is provided with a movable opening, a movable baffle (622) is horizontally movably provided in the movable opening, an electromagnetic component (621) is provided on the side of the movable baffle (622) facing the cutting knife (618), a permanent magnet which is attracted to the energized electromagnetic component (621) is embedded in the cutting knife (618), the movable baffle (622) moves horizontally to the bottom of the spray head (619) when the electromagnetic component (621) is energized, and a cleaning pad for contacting the bottom of the spray head (619) is provided on the top of the movable baffle (622).

5. The artificial wetland system according to claim 4, characterized in that: The collection and processing shell (68) is provided with a photovoltaic power supply device (616) and a controller (620), and the photovoltaic power supply device (616) and the controller (620) are both electrically connected to the rotating device and the electromagnetic component (621).

6. The artificial wetland system according to claim 1, characterized in that: The artificial wetland pool (1) is further provided with a plurality of filler layers, which include a gravel filler layer (3), a ceramsite filler layer (4), a zeolite filler layer (5) and a planting filler layer which are sequentially laid in the artificial wetland pool (1) from bottom to top.

7. A method for constructing an enhanced denitrification artificial wetland system, used to construct the artificial wetland system according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: constructing a water inlet pool (8) and an artificial wetland pool (1) with an assembly tank, and planting wetland plants (7) on the artificial wetland pool (1); S2: installing a dual-axis rotating device (9), a water supply pipe (15) and a high-pressure pump body (10) in the assembly tank, connecting the first output end of the dual-axis rotating device (9) to the impeller of the high-pressure pump body (10), and connecting the water inlet pool (8) and the oxygen enrichment spray assembly (6) through the water supply pipe (15); S3: Install a reciprocating member on the top of the artificial wetland pool (1), and connect it to the second output end of the dual-axis rotating device (9) through transmission, and then install the oxygen-enhancing spray assembly (6) on the reciprocating member.

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