Filter tank type constructed wetland purification bed

Abstract

The utility model discloses a filter tank type constructed wetland purification bed which comprises a purification bed main body, fixed blocks are mounted on two sides of the top of the purification bed main body, a protective outer cover is rotationally connected into the fixed block on the left side through a rotating shaft, a protective inner cover is arranged in the protective outer cover, and a cover plate is mounted on the left side of the top of the purification bed main body. A water level adjusting structure is arranged in the cover plate, a corrugated pipe is connected to the bottom of the water level adjusting structure, a guide pipe is connected to the end of the corrugated pipe, a water hole is formed in the guide pipe, the purification bed body is filled with a composite filtering soil layer, a water inlet pipe is placed on the surface of the composite filtering soil layer, and a water hole is formed in the surface of the water inlet pipe. The corrugated pipe is controlled to be lifted or lowered through rotation of the collecting roller, and the water level in the purification bed main body is adjusted by utilizing a communicating vessel principle, so that the quality of sewage during filtration is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial wetlands, in particular to a filter-type artificial wetland purification bed. Background Art

[0002] Artificial wetlands are an important way to deeply purify sewage. They can effectively remove pollutants in sewage and are widely used in sewage plant effluent purification, small-scale domestic sewage treatment and other fields.

[0003] However, in actual use, existing conventional artificial wetlands often suffer from blockage of treatment fillers, unstable treatment effects, reduced water treatment volume, and eventual loss of function. In addition, when conventional artificial wetlands are in use, impurities such as stones and leaves often fall into them from the outside, which may cause uneven purification of sewage due to obstruction of impurities, thereby increasing the difficulty of purification.

[0004] Therefore, we proposed a filter-type artificial wetland purification bed to solve the problems raised above. Utility Model Content

[0005] The purpose of the present utility model is to provide a filter-type artificial wetland purification bed to solve the problems raised in the above-mentioned background technology, such as the frequent blockage of treatment fillers, unstable treatment effect, reduced treatment water volume, and eventual loss of function in conventional artificial wetlands, as well as the obstruction of impurities falling from the outside, which increases the difficulty of purification.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a filter-type artificial wetland purification bed, comprising a purification bed body, wherein fixed blocks are installed on both sides of the top of the purification bed body, and a protective outer cover is rotatably connected to the interior of the left fixed block via a rotating shaft, and a protective inner cover is provided inside the protective outer cover;

[0007] A cover plate is installed on the left side of the top of the purification bed body, and a water level regulating structure is provided inside the cover plate, and a bellows is connected to the bottom of the water level regulating structure, the end of the bellows is connected to a conduit, and a water hole is opened inside the conduit, the interior of the purification bed body is filled with a composite filter soil layer, and a water inlet pipe is placed on the surface of the composite filter soil layer, and water holes are opened on the surface of the water inlet pipe, the bottom of the composite filter soil layer is filled with a porous silica-rich granular layer, and the bottom of the porous silica-rich granular layer is filled with a volcanic rock layer, the bottom of the volcanic rock layer is filled with a pebble layer, and the bottom of the pebble layer is a compacted soil layer, a backwash pipe is provided inside the pebble layer, and the surface of the backwash pipe is also provided with water holes;

[0008] A ventilation pipe is provided at the cobblestone layer, a water outlet pipe is provided on the left side of the purification bed body, and a decontamination port is opened on the front side of the purification bed body.

[0009] Preferably, the interior of the protective outer cover and the protective inner cover is hollow, and the protective outer cover and the protective inner cover are semicircular as a whole. A sliding groove adapted to the protective inner cover is provided inside the protective outer cover, and the protective inner cover forms a sliding structure inside the protective outer cover through the sliding groove.

[0010] Preferably, the water level regulating structure includes a mounting frame, a collecting roller, a pull rope, a hook, a sliding rod and a connecting piece. A collecting roller is installed on one side of the mounting frame, and a pull rope is wrapped inside the collecting roller. A hook is provided at the end of the pull rope, and the pull rope is connected to the connecting piece through the hook, and a corrugated tube is connected to the bottom side of the connecting piece, and sliding rods are passed through both sides of the connecting piece.

[0011] Preferably, water holes are provided on both sides of the water inlet pipe, backwash pipe and conduit surface, and the water holes are distributed at equal intervals on the water inlet pipe, backwash pipe and conduit surface, and the distribution distance is 200 mm.

[0012] Preferably, the backwash pipe is arranged below the conduit, and the length of the backwash pipe exceeds the pebble layer and extends to the outside of the purification bed body.

[0013] Preferably, a plurality of decontamination ports are provided on the front side of the purification bed body, and the height of the decontamination ports is level with the height of the conduit.

[0014] Compared with the existing technology, the beneficial effects of the utility model are: the filter type artificial wetland purification bed,

[0015] (1) The bellows is raised or lowered by rotating the collecting roller, and the water level inside the purification bed is adjusted by using the communicating vessel principle, thereby improving the quality of sewage filtration.

[0016] (2) Through the protection of the protective outer cover and the protective inner cover, it is not easy for debris to float into the main body of the purification bed, thereby reducing the difficulty of purification. The interior of the protective outer cover and the protective inner cover are hollow, so that they can ensure air circulation in the main body of the purification bed.

[0017] (3) The water holes distributed at equal intervals can evenly spread the sewage in the filling layer, thereby avoiding the accumulation of sewage in the same place and reducing the retention of sewage in the main body of the purification bed.

[0018] (4) By adding high-speed flowing water to the backwash pipe, the water is sprayed out from the water hole, thereby flushing the impurities in the filling layer, and then backwashing the interior of the purification bed body, so as to reduce the blockage in the filler, thereby maintaining the stability of the artificial wetland treatment effect and extending the use time of the artificial wetland indefinitely. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the side sectional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the water level regulation structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the water hole structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the main structure of the utility model.

[0025] In the figure: 1. Purification bed body; 2. Fixing block; 3. Protective outer cover; 4. Protective inner cover; 5. Water level adjustment structure; 501. Mounting frame; 502. Collecting roller; 503. Pull rope; 504. Hook; 505. Sliding rod; 506. Connecting piece; 6. Bellows; 7. Conduit; 8. Water hole; 9. Composite filter soil layer; 10. Porous silica-rich granular layer; 11. Volcanic rock layer; 12. Pebble layer; 13. Compacted soil layer; 14. Water inlet pipe; 15. Backwash pipe; 16. Water outlet pipe; 17. Vent pipe; 18. Cover plate; 19. Decontamination port. DETAILED DESCRIPTION

[0026] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-6 The utility model provides a technical solution: a filter-type artificial wetland purification bed, comprising a purification bed body 1, fixed blocks 2 are installed on both sides of the top of the purification bed body 1, and a protective outer cover 3 is rotatably connected to the left fixed block 2 through a rotating shaft, and a protective inner cover 4 is provided inside the protective outer cover 3;

[0028] A cover plate 18 is installed on the left side of the top of the purification bed body 1, and a water level regulating structure 5 is provided inside the cover plate 18, and a bellows 6 is connected to the bottom of the water level regulating structure 5, and a conduit 7 is connected to the end of the bellows 6, and a water hole 8 is opened inside the conduit 7. A composite filter soil layer 9 is filled inside the purification bed body 1, and a water inlet pipe 14 is placed on the surface of the composite filter soil layer 9, and a water hole 8 is opened on the surface of the water inlet pipe 14. The bottom of the composite filter soil layer 9 is filled with a porous silica-rich granular layer 10, and the bottom of the porous silica-rich granular layer 10 is filled with a volcanic rock layer 11, the bottom of the volcanic rock layer 11 is filled with a pebble layer 12, and the bottom of the pebble layer 12 is a compacted soil layer 13, a backwash pipe 15 is provided inside the pebble layer 12, and the surface of the backwash pipe 15 is also provided with a water hole 8;

[0029] A ventilation pipe 17 is provided at the cobblestone layer 12 , a water outlet pipe 16 is provided on the left side of the purification bed body 1 , and a decontamination port 19 is provided on the front side of the purification bed body 1 .

[0030] The interior of the protective outer cover 3 and the protective inner cover 4 is hollow, and the protective outer cover 3 and the protective inner cover 4 are semicircular as a whole. A slide groove adapted to the protective inner cover 4 is provided inside the protective outer cover 3, and the protective inner cover 4 forms a sliding structure in the protective outer cover 3 through the slide groove. Through the protection of the protective outer cover 3 and the protective inner cover 4, it is not easy for debris to float into the main body of the purification bed 1, thereby reducing the difficulty of purification.

[0031] The water level regulating structure 5 includes a mounting frame 501, a collecting roller 502, a pull rope 503, a hook 504, a slide rod 505 and a connector 506. The collecting roller 502 is mounted on one side of the mounting frame 501, and a pull rope 503 is wound inside the collecting roller 502. A hook 504 is provided at the end of the pull rope 503, and the pull rope 503 is connected to the connector 506 through the hook 504. The bottom side of the connector 506 is connected to the bellows 6, and slide rods 505 are passed through both sides of the connector 506. A through opening communicating with the bellows 6 is opened inside the connector 506. The pull rope 503 is pulled by the collecting roller 502 to control the raising or lowering of the bellows 6 on the bottom side of the connector 506, and then the principle of communicating vessels is used to realize the water level regulation inside the purification bed body 1.

[0032] Water holes 8 are provided on both sides of the surface of the water inlet pipe 14, the backwash pipe 15 and the catheter 7, and the water holes 8 are evenly spaced on the surface of the water inlet pipe 14, the backwash pipe 15 and the catheter 7, and the distribution distance is 200 mm. The evenly spaced water holes 8 can evenly sprinkle the sewage in the filling layer, so that the sewage can be fully filtered, thereby avoiding the accumulation of sewage in the same place.

[0033] The backwash pipe 15 is arranged below the conduit 7, and the length of the backwash pipe 15 exceeds the pebble layer 12 and extends to the outside of the purification bed body 1. By adding high-speed flowing water to the backwash pipe 15, the water flushes the impurities adhered in the pebble layer 12, thereby realizing backwashing of the inside of the purification bed body 1, thereby reducing blockage in the filling layer.

[0034] The front side of the purification bed body 1 is provided with multiple decontamination ports 19 , and the height of the decontamination ports 19 is level with that of the conduit 7 , and the water flushed through the backwash pipe 15 will flow out through the multiple decontamination ports 19 , thereby achieving the replacement of sewage.

[0035] Working principle: When using the filter-type artificial wetland purification bed, first, by rotating the collecting roller 502 on one side of the mounting frame 501, the collecting roller 502 reels the pull rope 503, so that the connecting member 506 connected to the hook 504 slides upward on the slide bar 505, and the bellows 6 at the bottom of the connecting member 506 is stretched upward by it. Then, the collecting roller 502 unwinds the pull rope 503, so that the connecting member 506 moves downward by its own gravity, so that the bellows 6 is contracted downward, and the adjustment structure 5 is adjusted to the required height;

[0036] Secondly, by pulling the protective inner cover 4, the protective inner cover 4 slides in the protective outer cover 3, so that one end of the protective inner cover 4 fits the fixed block 2. When the fixed block 2 and the protective inner cover 4 fit together, they are fixed with bolts to protect the purification bed body 1 and reduce the influx of external impurities.

[0037] Next, sewage is injected into the water inlet pipe 14 so that the sewage can be sprayed into the interior of the purification bed body 1 through the water holes 8 on the surface of the water inlet pipe 14. When the sewage is sprayed into the interior of the purification bed body 1, it will first contact the composite filter soil layer 9, so that the sewage is preliminarily filtered by the composite filter soil layer 9. After passing through the composite filter soil layer 9, the preliminarily filtered sewage will flow into the porous silica-rich granular layer 10 for secondary filtration. Then, the sewage will flow to the pebble layer 12 above the compacted soil layer 13 for further filtration, and a conduit 7 is installed in the pebble layer 12. After entering the pebble layer 12, the filtered sewage will contact the conduit 7 and then enter it through the water holes 8 in the conduit 7, so that it flows to the corrugated pipe 6.

[0038] Next, the water flows through the bellows 6, allowing the water to flow through the opening inside the connector 506 to the left side of the purification bed body 1. The left side of the purification bed body 1 is divided into a closed space by a partition. Then, the filtered sewage flows out through the outlet pipe 16 on the left side of the purification bed body 1. The purification bed body 1 is provided with a ventilation pipe 17 to ensure air circulation inside the purification bed body 1. When the internal sewage needs to be completely discharged, the valve at the left end of the conduit 7 is opened to allow the sewage to flow directly from the left end of the conduit 7 to the outlet pipe 16 for discharge.

[0039] Finally, after filtering for a period of time, all valves are closed to form a closed space inside, and high-speed circulating water is added to the backwash pipe 15, so that the water is sprayed out through the water holes on the surface of the backwash pipe 15 to flush the impurities adhered to the packing layer composed of the pebble layer 12, the porous silica-rich particle layer 10 and the volcanic rock layer 11, thereby realizing backwashing of the interior of the purification bed body 1, and the sewage with impurities after flushing will flow out through the decontamination port 19 on the front side of the purification bed body 1, thereby reducing the blockage of the packing layer, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filter-type artificial wetland purification bed, comprising a purification bed body (1), characterized in that: Fixed blocks (2) are installed on both sides of the top of the purification bed body (1), and a protective outer cover (3) is rotatably connected to the interior of the fixed block (2) on the left side via a rotating shaft, and a protective inner cover (4) is provided inside the protective outer cover (3); A cover plate (18) is installed on the left side of the top of the purification bed body (1), and a water level regulating structure (5) is arranged inside the cover plate (18), and a bellows (6) is connected to the bottom of the water level regulating structure (5), and the end of the bellows (6) is connected to a conduit (7), and a water hole (8) is opened inside the conduit (7), and a composite filter soil layer (9) is filled inside the purification bed body (1), and a water inlet pipe (14) is placed on the surface of the composite filter soil layer (9), and the water inlet pipe ( 14) having water holes (8) on its surface, the bottom of the composite filter soil layer (9) is filled with a porous silica-rich particle layer (10), and the bottom of the porous silica-rich particle layer (10) is filled with a volcanic rock layer (11), the bottom of the volcanic rock layer (11) is filled with a pebble layer (12), and the bottom of the pebble layer (12) is a compacted soil layer (13), a backwash pipe (15) is provided inside the pebble layer (12), and the surface of the backwash pipe (15) is also provided with water holes (8); A ventilation pipe (17) is provided at the cobblestone layer (12), a water outlet pipe (16) is provided on the left side of the purification bed body (1), and a decontamination port (19) is provided on the front side of the purification bed body (1).

2. The filter-type artificial wetland purification bed according to claim 1, characterized in that: The interiors of the protective outer cover (3) and the protective inner cover (4) are hollow, and the protective outer cover (3) and the protective inner cover (4) are semicircular as a whole. A sliding groove adapted to the protective inner cover (4) is provided inside the protective outer cover (3), and the protective inner cover (4) forms a sliding structure inside the protective outer cover (3) through the sliding groove.

3. The filter-type artificial wetland purification bed according to claim 1, characterized in that: The water level regulating structure (5) comprises a mounting frame (501), a collecting roller (502), a pull rope (503), a hook (504), a slide rod (505) and a connecting piece (506); the collecting roller (502) is mounted on one side of the mounting frame (501), and the pull rope (503) is wound inside the collecting roller (502); a hook (504) is provided at the end of the pull rope (503), and the pull rope (503) is connected to the connecting piece (506) via the hook (504); a bellows (6) is connected to the bottom side of the connecting piece (506); and slide rods (505) are passed through both sides of the connecting piece (506).

4. The filter-type artificial wetland purification bed according to claim 1, characterized in that: Water holes (8) are provided on both sides of the surfaces of the water inlet pipe (14), the backwash pipe (15) and the conduit (7), and the water holes (8) are distributed at equal intervals on the surfaces of the water inlet pipe (14), the backwash pipe (15) and the conduit (7), and the distribution distance is 200 mm.

5. The filter-type artificial wetland purification bed according to claim 1, characterized in that: The backwash pipe (15) is arranged below the conduit (7), and the length of the backwash pipe (15) exceeds the cobblestone layer (12) and extends to the outside of the purification bed body (1).

6. The filter-type artificial wetland purification bed according to claim 1, characterized in that: The front side of the purification bed body (1) is provided with a plurality of decontamination ports (19), and the height of the decontamination ports (19) is level with the height of the conduit (7).

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