Multistage diversion treatment device for rainwater and sewage in wetland

Abstract

The utility model relates to the technical field of rainwater and sewage treatment, and discloses a wetland rainwater and sewage multi-stage diversion treatment device which comprises a rainwater treatment tank and a sewage treatment pond, one end of the side wall of the rainwater treatment tank is communicated with a first water inlet pipe, and one end of the bottom of the side wall of the rainwater treatment tank is communicated with a first water drainage pipe. A flashboard is arranged at the position, located at the first drainage pipe, in the rainwater treatment tank, the bottom of the rainwater treatment tank communicates with a first water pump through a first connecting pipe, the output end of the first water pump communicates with a sewage treatment pond through a second connecting pipe, and a grating conveying belt is arranged in the sewage treatment pond; one end of the grid conveyor belt is obliquely arranged upwards and extends out of the sewage treatment tank, and one end of the top of the sewage treatment tank is fixedly connected with a second water inlet pipe; rainwater and sewage are separately treated and discharged through the design of the rainwater treatment tank and the sewage treatment tank, so that the pressure of the sewage treatment tank is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rain and sewage treatment, in particular to a wetland rain and sewage multi-stage diversion treatment device. Background Technique

[0002] Today, with the continuous advancement of urbanization, the treatment of rainwater and sewage has become an important issue in environmental protection and water resource management. When the discharge of rainwater and sewage increases significantly, it will cause great pressure on the environment.

[0003] In recent years, with the enhancement of awareness of ecological environmental protection and the continuous progress of sewage treatment technology, the artificial wetland sewage treatment technology has been widely applied and studied. It utilizes the interaction of substrates, aquatic plants and microorganisms in the wetland ecosystem to achieve the deep purification of sewage through the triple action mechanisms of physics, chemistry and biology.

[0004] Although the artificial wetland sewage treatment technology has many advantages, there are still some deficiencies in practical applications. For example, when the rainfall increases, the large influx of rainwater and sewage will cause greater pressure on the artificial wetland, resulting in the sewage being discharged into the river without being deeply purified, thereby polluting the river.

[0005] Therefore, the utility model provides a wetland rain and sewage multi-stage diversion treatment device. Content of the Utility Model

[0006] The purpose of the utility model is to provide a wetland rain and sewage multi-stage diversion treatment device to solve the problem that it is not convenient to treat sewage when the rainfall increases.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A wetland rain and sewage multi-stage diversion treatment device includes a rainwater treatment tank and a sewage treatment pool. One end of the side wall of the rainwater treatment tank is communicated with a first water inlet pipe, one end of the bottom of the side wall of the rainwater treatment tank is communicated with a first drain pipe, a sluice gate is arranged inside the rainwater treatment tank at the position of the first drain pipe, the bottom of the rainwater treatment tank is communicated with a first water pump through a first connecting pipe, the output end of the first water pump is communicated with the sewage treatment pool through a second connecting pipe, a grille conveyor belt is arranged inside the sewage treatment pool, one end of the grille conveyor belt is arranged obliquely upward and extends to the outside of the sewage treatment pool, and one end of the top of the sewage treatment pool is fixedly connected with a second water inlet pipe.

[0008] Preferably, a cylinder is fixedly connected to the inner wall of the rainwater treatment tank above the gate plate. The output end of the cylinder is fixedly connected to the gate plate. The gate plate is slidably connected to the rainwater treatment tank. A water quality sensor is fixedly connected to one end of the inner wall of the rainwater treatment tank. A motor is fixedly connected to the top of the rainwater treatment tank. The output shaft of the motor extends into the rainwater treatment tank and is fixedly connected to a rotating shaft. A scraper is fixedly connected to the bottom of the rotating shaft.

[0009] Preferably, a plurality of bumps are fixedly connected to the outer wall of the grille conveyor belt. A slag collection box is arranged below one end of the grille conveyor belt away from the sewage treatment tank. A door body is installed at one end of the side wall of the slag collection box.

[0010] Preferably, a third connecting pipe is communicated with the side wall of the sewage treatment tank below the grille conveyor belt. One end of the third connecting pipe is communicated with a second water pump. The output end of the second water pump is communicated with a fourth connecting pipe. One end of the fourth connecting pipe is communicated with a water spraying pipe. A packing box is arranged below the water spraying pipe.

[0011] Preferably, two connecting rods are respectively fixedly connected to both ends of the water spraying pipe. The connecting rods are fixedly connected to the packing box. One end of the packing box is communicated with a second drain pipe. The second drain pipe is located at the bottom of the side wall of the packing box.

[0012] Preferably, a net plate is fixedly connected to the inner wall of the packing box above the input port of the second drain pipe. A slag layer is arranged on the top of the net plate. A ceramsite layer is arranged above the slag layer. A gravel layer is arranged above the ceramsite layer. Wetland plants are arranged above the gravel layer.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model treats rainwater through the design of a rainwater treatment tank. Among them, the design of the water quality sensor can monitor the water quality of rainwater. The cylinder can drive the gate plate to move. When the water quality of rainwater does not meet the standard, the cylinder drives the gate plate to close the first drain pipe, so that the rainwater flows into the sewage treatment tank through the first water pump. When the water quality of rainwater meets the standard, the cylinder drives the gate plate to move, so as to open the first drain pipe, so that the rainwater can be directly discharged, thereby reducing the pressure of subsequent sewage treatment. By arranging a grille conveyor belt in the sewage treatment tank, large suspended solids and floating objects in the sewage can be removed. The preliminarily treated sewage is conveyed to the water spraying pipe through the second water pump and sprayed into the packing box from the nozzles on the water spraying pipe. The wetland plants, gravel layer, ceramsite layer and slag layer arranged in the packing box can deeply purify the sewage, so that the sewage can meet the discharge standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 This is a schematic side sectional view of the rainwater treatment tank in the present utility model;

[0017] Figure 3 This is a schematic view of the sewage treatment tank structure in the present utility model;

[0018] Figure 4 is Figure 3 a schematic view of another perspective structure of;

[0019] Figure 5 This is a schematic side sectional view of the packing box in the present utility model.

[0020] In the figure: 1. Rainwater treatment tank; 2. Sewage treatment tank; 3. First water inlet pipe; 4. First drain pipe; 5. Gate plate; 6. First connecting pipe; 7. First water pump; 8. Second connecting pipe; 9. Grille conveyor belt; 10. Second water inlet pipe; 11. Cylinder; 12. Water quality sensor; 13. Motor; 14. Rotating shaft; 15. Scraper; 16. Convex block; 17. Slag collection box; 18. Door body; 19. Third connecting pipe; 20. Second water pump; 21. Fourth connecting pipe; 22. Spray pipe; 23. Packing box; 24. Connecting rod; 25. Second drain pipe; 26. Mesh plate; 27. Slag layer; 28. Ceramsite layer; 29. Gravel layer; 30. Wetland plants. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a wetland rain and sewage multi-stage diversion treatment device, including a rainwater treatment tank 1 and a sewage treatment tank 2. One end of the side wall of the rainwater treatment tank 1 is communicated with a first water inlet pipe 3, and one end of the bottom of the side wall of the rainwater treatment tank 1 is communicated with a first drain pipe 4. A gate plate 5 is arranged inside the rainwater treatment tank 1 at the position of the first drain pipe 4. The bottom of the rainwater treatment tank 1 is communicated with a first water pump 7 through a first connecting pipe 6. The output end of the first water pump 7 is communicated with the sewage treatment tank 2 through a second connecting pipe 8. A grille conveyor belt 9 is arranged inside the sewage treatment tank 2. One end of the grille conveyor belt 9 is arranged obliquely upward and extends to the outside of the sewage treatment tank 2. One end of the top of the sewage treatment tank 2 is fixedly connected with a second water inlet pipe 10;

[0023] In this embodiment, in the urban rain and sewage treatment system, rainwater and sewage in the city first enter the drainage pipe network through their respective collection systems. Rainwater usually converges into the rainwater pipeline through roofs, roads, etc., while sewage enters the sewage pipeline through drainage facilities in residential areas, commercial areas, etc. When the rainy season arrives and the rainfall increases, in order to reduce the pressure on sewage treatment, rainwater and sewage are often treated separately. During operation, the first water inlet pipe 3 is connected to the rainwater pipeline, and the second water inlet pipe 10 is connected to the sewage pipeline. When rainwater enters the rainwater treatment tank 1 through the first water inlet pipe 3, at this time, since the rainwater has just washed the roof and the road surface, the rainwater at this time will be relatively dirty and cannot be directly discharged. Then, the first water pump 7 is turned on. Under the action of the first water pump 7, the rainwater will flow into the sewage treatment pool 2 for treatment. When the rainwater has washed the road surface and the roof for a period of time and the rainwater gradually becomes clear, then the gate 5 at the water inlet of the first drainage pipe 4 is opened, so that the rainwater can directly pass through the first drainage pipe 4 and be discharged into the river, thereby reducing the pressure on the sewage treatment pool 2. During the process of the rainwater treatment tank 1 treating rainwater, the sewage treatment pool 2 will simultaneously treat sewage and the initial rainwater transported from the rainwater treatment tank 1. Among them, through the design of the grille conveyor belt 9, large suspended solids and floating objects in the sewage can be removed.

[0024] As Figure 2 shown, a cylinder 11 is fixedly connected to the inner wall of the rainwater treatment tank 1 above the gate 5. The output end of the cylinder 11 is fixedly connected to the gate 5. The gate 5 is slidably connected to the rainwater treatment tank 1. One end of the inner wall of the rainwater treatment tank 1 is fixedly connected with a water quality sensor 12. The top of the rainwater treatment tank 1 is fixedly connected with a motor 13. The output shaft of the motor 13 extends into the rainwater treatment tank 1 and is fixedly connected with a rotating shaft 14. The bottom of the rotating shaft 14 is fixedly connected with a scraper 15;

[0025] In this embodiment, the movement of the gate 5 is driven by the design of the cylinder 11, the water quality of the rainwater is monitored by the water quality sensor 12, so as to control the opening and closing of the gate 5. The motor 13 can drive the rotating shaft 14 to rotate, thereby driving the scraper 15 to rotate. When the scraper 15 rotates, the sediment deposited at the bottom of the rainwater treatment tank 1 can be scraped into the first connecting pipe 6 and transported to the sewage treatment pool 2 for treatment through the first water pump 7.

[0026] As Figures 3 to 4 shown, a plurality of bumps 16 are fixedly connected to the outer wall of the grille conveyor belt 9. A slag collection box 17 is arranged below one end of the grille conveyor belt 9 away from the sewage treatment pool 2. A door body 18 is installed at one end of the side wall of the slag collection box 17;

[0027] In this embodiment, the design of the bump 16 can increase the friction of the grille conveyor belt 9, so that when the grille conveyor belt 9 conveys large particles in the sewage, the large particles can be prevented from rolling. The slag collection box 17 is designed to collect particles such as suspended matter conveyed by the grille conveyor belt 9, and the design of the door body 18 facilitates the staff to clean the inside of the slag collection box 17.

[0028] As Figure 3 and Figure 5 shown, a third connecting pipe 19 is connected to the side wall of the sewage treatment tank 2 below the grille conveyor belt 9. One end of the third connecting pipe 19 is connected to a second water pump 20. The output end of the second water pump 20 is connected to a fourth connecting pipe 21. One end of the fourth connecting pipe 21 is connected to a water spraying pipe 22. A packing box 23 is arranged below the water spraying pipe 22. Two connecting rods 24 are respectively and fixedly connected to both ends of the water spraying pipe 22. The connecting rods 24 are fixedly connected to the packing box 23. One end of the packing box 23 is connected to a second drain pipe 25. The second drain pipe 25 is located at the bottom of the side wall of the packing box 23. A mesh plate 26 is fixedly connected to the inner wall of the packing box 23 above the input port of the second drain pipe 25. A slag layer 27 is arranged on the top of the mesh plate 26. A ceramsite layer 28 is arranged above the slag layer 27. A gravel layer 29 is arranged above the ceramsite layer 28. A wetland plant 30 is arranged above the gravel layer 29.

[0029] In this embodiment, the second water pump 20 can transport the filtered sewage into the packing box 23 for further treatment. The sewage will enter the water spraying pipe 22 under the transportation of the second water pump 20 and be sprayed out from the nozzles on the water spraying pipe 22. The sprayed sewage will fall into the packing box 23 and pass through the wetland plant 30, the gravel layer 29, the ceramsite layer 28 and the slag layer 27 in sequence. The wetland plant 30 can absorb and utilize inorganic nitrogen, phosphorus and other nutrients in the sewage, and at the same time is beneficial to the adsorption and removal of suspended matter and pathogenic bacteria, and reduces the flow of sewage, which is beneficial to the sedimentation of suspended matter. The gravel layer 29, as a physical filtering medium, can intercept impurities such as suspended matter and colloid in the sewage. The ceramsite in the ceramsite layer 28 has a porous structure, which can further remove impurities such as suspended matter and colloid in the sewage, and at the same time can adsorb some organic matters, heavy metal ions and other pollutants in the sewage. The slag layer 27 has a good removal effect on pollutants such as phosphorus in the sewage. The treated sewage meets the discharge standard. These sewage will pass through the mesh plate 26 and fall to the bottom of the packing box 23, and finally be discharged into the river through the second drain pipe 25.

[0030] Working principle: In the urban rain and sewage treatment system, rainwater and sewage in the city first enter the drainage pipe network through their respective collection systems. Rainwater usually converges into the rainwater pipes through roofs, roads, etc., while sewage enters the sewage pipes through drainage facilities in residential areas, commercial areas, etc. When the rainy season arrives and the rainfall increases, in order to reduce the pressure on sewage treatment, rainwater and sewage are often treated separately. During operation, the first water inlet pipe 3 is connected to the rainwater pipe, and the second water inlet pipe 10 is connected to the sewage pipe. When rainwater enters the rainwater treatment tank 1 through the first water inlet pipe 3, at this time, since the rainwater has just washed the roof and the road surface, the rainwater at this time will be relatively turbid and cannot be directly discharged. Then the first water pump 7 is turned on. Under the action of the first water pump 7, the rainwater will flow into the sewage treatment pool 2 for treatment. When the rainwater has washed the road surface and the roof for a period of time and the rainwater gradually becomes clear, at this time, the cylinder 11 is used to open the gate 5 at the water inlet of the first drain pipe 4, so that the rainwater can directly pass through the first drain pipe 4 and be discharged into the river, thereby reducing the pressure on the sewage treatment pool 2. During the process of the rainwater treatment tank 1 treating rainwater, the sewage treatment pool 2 will simultaneously treat sewage and the initial rainwater transported from the rainwater treatment tank 1. Among them, through the design of the grid conveyor belt 9, large suspended solids and floating objects in the sewage can be removed. Through the second water pump 20, the filtered sewage can be transported into the packing box 23 for further treatment. Among them, the sewage will enter the spray pipe 22 under the transportation of the second water pump 20 and be sprayed out from the nozzles on the spray pipe 22. The sprayed sewage will fall into the packing box 23 and sequentially pass through the wetland plants 30, the gravel layer 29, the ceramsite layer 28 and the slag layer 27. Among them, the wetland plants 30 can absorb and utilize inorganic nitrogen, phosphorus and other nutrients in the sewage, and at the same time are conducive to the adsorption and removal of suspended solids and pathogenic bacteria, and reduce the flow of sewage, which is conducive to the settlement of suspended solids. The gravel layer 29, as a physical filtration medium, can intercept suspended solids, colloids and other impurities in the sewage. The ceramsite in the ceramsite layer 28 has a porous structure, which can further remove suspended solids, colloids and other impurities in the sewage, and at the same time can adsorb some organic pollutants, heavy metal ions and other pollutants in the sewage. The slag layer 27 has a good removal effect on pollutants such as phosphorus in the sewage. The treated sewage reaches the discharge standard. These sewage will pass through the mesh plate 26 and fall to the bottom of the packing box 23, and finally be discharged into the river through the second drain pipe 25.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes and modifications can be made to these embodiments without departing from the principle of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage diversion treatment device for rainwater and sewage in wetlands, comprising a rainwater treatment tank (1) and a sewage treatment pond (2), characterized in that: One end of the side wall of the rainwater treatment tank (1) is communicated with a first water inlet pipe (3). One end of the bottom of the side wall of the rainwater treatment tank (1) is communicated with a first drain pipe (4). A sluice gate (5) is arranged at the position of the first drain pipe (4) inside the rainwater treatment tank (1). The bottom of the rainwater treatment tank (1) is communicated with a first water pump (7) through a first connecting pipe (6). The output end of the first water pump (7) is communicated with a sewage treatment tank (2) through a second connecting pipe (8). A grille conveyor belt (9) is arranged inside the sewage treatment tank (2). One end of the grille conveyor belt (9) is arranged obliquely upward and extends outside the sewage treatment tank (2). One end of the top of the sewage treatment tank (2) is fixedly connected with a second water inlet pipe (10).

2. The wetland rain and sewage multi-stage diversion treatment device according to claim 1, characterized in that: A cylinder (11) is fixedly connected above the sluice gate (5) on the inner wall of the rainwater treatment tank (1). The output end of the cylinder (11) is fixedly connected with the sluice gate (5). The sluice gate (5) is slidably connected with the rainwater treatment tank (1). A water quality sensor (12) is fixedly connected to one end of the inner wall of the rainwater treatment tank (1). A motor (13) is fixedly connected to the top of the rainwater treatment tank (1). The output shaft of the motor (13) extends into the rainwater treatment tank (1) and is fixedly connected with a rotating shaft (14). A scraper (15) is fixedly connected to the bottom of the rotating shaft (14).

3. The wetland rain and sewage multi-stage diversion treatment device according to claim 1, characterized in that: A plurality of bumps (16) are fixedly connected to the outer wall of the grille conveyor belt (9). A slag collection box (17) is arranged below the end of the grille conveyor belt (9) far from the sewage treatment tank (2). A door body (18) is installed at one end of the side wall of the slag collection box (17).

4. A multi-stage diversion treatment device for wetland rainwater and sewage according to claim 1, characterized in that: A third connecting pipe (19) is communicated below the grille conveyor belt (9) on the side wall of the sewage treatment tank (2). One end of the third connecting pipe (19) is communicated with a second water pump (20). The output end of the second water pump (20) is communicated with a fourth connecting pipe (21). One end of the fourth connecting pipe (21) is communicated with a water spraying pipe (22). A packing box (23) is arranged below the water spraying pipe (22).

5. A wetland rain and sewage multi-stage diversion treatment device according to claim 4, characterized in that: Two connecting rods (24) are respectively fixedly connected to both ends of the water spraying pipe (22). The connecting rods (24) are fixedly connected with the packing box (23). One end of the packing box (23) is communicated with a second drain pipe (25). The second drain pipe (25) is located at the bottom of the side wall of the packing box (23).

6. The wetland rain and sewage multi-stage diversion treatment device according to claim 5, characterized in that: A net plate (26) is fixedly connected above the input port of the second drain pipe (25) on the inner wall of the packing box (23). A slag layer (27) is arranged on the top of the net plate (26). A ceramsite layer (28) is arranged above the slag layer (27). A gravel layer (29) is arranged above the ceramsite layer (28). Wetland plants (30) are arranged above the gravel layer (29).

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