Sewage treatment device for landscape constructed wetland

Abstract

The sewage treatment device comprises a sequencing batch type constructed wetland bed body, a pump body and a pretreatment tank, the sequencing batch type constructed wetland bed body, the pump body and the pretreatment tank are connected through a pipeline, the upper end of the pretreatment tank is fixedly connected with a filter chamber, a rotating rod is rotatably arranged in the filter chamber, and the rotating rod is fixedly connected with the pump body. A plurality of rotating blades are fixedly arranged on the rotating rod, a filtering plate is fixedly arranged in the filtering chamber, a positive and negative lead screw is rotationally arranged in the filtering chamber, one end of the positive and negative lead screw and one end of the rotating rod penetrate through the filtering chamber and are connected with a transmission belt structure, and a scraping plate is in threaded connection with the positive and negative lead screw and is in sliding connection with a limiting rod fixedly arranged in the filtering chamber; sewage draining outlets are formed in the two sides of the filtering chamber respectively, sewage can be pretreated, particle impurities in the sewage can be filtered out, meanwhile, the filtering plate can be automatically cleaned, the sewage and chemicals can be turned and stirred while being horizontally stirred, the phenomenon of stirring dead corners at the bottom of the pretreatment tank is avoided, and meanwhile a collecting box is convenient to detach and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically, to a sewage treatment device for landscape artificial wetlands. Background Art

[0002] Constructed wetlands are artificial engineering systems that use biological and physical and chemical effects such as wetland plants, microorganisms and soil to treat and purify sewage. Constructed wetlands can not only achieve the function of sewage treatment, but also provide good landscape effects, improve the surrounding environment, and have certain ornamental and ecological functions. Before sewage enters the artificial wetland, some pretreatment is usually required, such as removing large particles of impurities, adjusting water quality parameters, etc., to ensure the smooth progress of subsequent treatment. When the existing sewage treatment device for landscape artificial wetlands pre-treats sewage, large particles of impurities (such as solid plastics) in the sewage are usually filtered through a filter plate, but during long-term use, the filter plate is easily clogged, which reduces the filtering effect and the amount of water flow, thereby reducing the efficiency of sewage pretreatment; secondly, when pre-treating sewage, some agents (such as acid-base regulators) need to be placed in the pretreatment tank and mixed with sewage to adjust water quality parameters. The existing sewage treatment device for landscape artificial wetlands is usually equipped with a stirring rod in the pretreatment tank to mix and stir the sewage and the reagent. However, the stirring method of the stirring rod is usually relatively simple, which makes it easy for a stirring dead corner to appear at the bottom of the pretreatment tank, thereby reducing the uniformity of the mixing of the sewage and the reagent and affecting the effect of the pretreatment of the sewage. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the utility model provides a sewage treatment device for landscape artificial wetlands to solve the technical problem mentioned in the background technology that the filter plate of the existing sewage treatment device for landscape artificial wetlands is easily blocked when pre-treating sewage.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage treatment device for landscape artificial wetlands, comprising a sequencing batch artificial wetland bed, a pump body and a pretreatment tank, wherein the sequencing batch artificial wetland bed, the pump body and the pretreatment tank are connected by a pipeline, a filter chamber is fixedly connected to the upper end of the pretreatment tank, a rotating rod is rotatably provided in the filter chamber, a plurality of rotating blades are fixedly provided on the rotating rod, a filter plate is fixedly provided in the filter chamber, a forward and reverse screw is rotatably provided in the filter chamber, one end of the forward and reverse screw and the rotating rod passes through the filter chamber and is connected to a transmission belt structure, a scraper is threadedly connected to the forward and reverse screw, the scraper is slidably connected to a limit rod fixedly provided in the filter chamber, and sewage outlets are respectively provided on both sides of the filter chamber;

[0007] A vertical shaft is rotatably provided in the pretreatment tank, and the vertical shaft is rotatably connected to a driving shell fixedly provided in the treatment tank. Four horizontal shafts are rotatably provided outside the driving shell, and a plurality of stirring rods are fixedly provided on the vertical shaft and the horizontal shaft respectively.

[0008] The utility model is further configured that a water inlet pipe is fixedly provided at the upper end of the filter chamber to facilitate conveying sewage to the filter chamber.

[0009] The utility model is further configured that a motor is fixedly provided at the upper end of the pretreatment tank, and the driving end of the motor extends into the treatment tank and is fixedly connected to the vertical shaft to facilitate the rotation of the vertical shaft.

[0010] The utility model is further configured such that the lower end of the vertical shaft extends into the driving housing and is fixedly connected with a driving bevel gear, so as to drive the bevel gear to rotate.

[0011] The utility model is further configured that one end of each of the transverse shafts extends into the driving housing and is fixedly connected with a driven bevel gear, and the driven bevel gear is meshedly connected with the driving bevel gear to facilitate the rotation of the transverse shaft.

[0012] The utility model is further configured that four limiting grooves are respectively provided on both sides of the filter chamber to facilitate limiting the limiting strip.

[0013] The utility model is further configured that a limiting bar is movably provided in each limiting groove to facilitate the movement of the limiting bar.

[0014] The utility model is further configured such that a collection box is fixedly connected between two adjacent limit strips, so that the collection box can be easily disassembled and cleaned.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a sewage treatment device for landscape artificial wetlands, which has the following beneficial effects:

[0017] 1. Through the coordination of the sequencing batch type artificial wetland bed, pump body, pretreatment tank, filter chamber, rotating rod, rotating blade, filter plate, forward and reverse screws, transmission belt structure, scraper, limit rod and sewage outlet, the sewage entering the sequencing batch type artificial wetland bed can be pretreated and the particulate impurities inside can be filtered out. At the same time, the filter plate can be automatically cleaned to avoid clogging during use, thereby ensuring the filtering effect and water flow rate, thereby improving the work efficiency of sewage pretreatment. During the entire process of cleaning the filter plate, no electrical equipment is used, which increases the energy saving of the entire device.

[0018] 2. Through the coordination of the vertical shaft, drive housing, horizontal shaft, stirring rod, water inlet pipe, motor, driving bevel gear, driven bevel gear, limit groove, limit bar and collecting box, the stirring rod on the vertical shaft can stir horizontally while the stirring rod on the horizontal shaft can stir the bottom of the pretreatment tank, thereby avoiding the phenomenon of dead corner of stirring at the bottom, improving the uniformity of mixing of sewage and chemicals, and ensuring the effect of sewage pretreatment.

[0019] 3. Through the coordination of the limit groove, the limit strip and the collection box, the impurities cleaned out by the filter plate can be collected to avoid polluting the surrounding environment. At the same time, the collection box is easy to disassemble and can be disassembled and cleaned. The installation and disassembly of the collection box are simple and quick, and it is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a sewage treatment device used in landscape artificial wetlands in use;

[0021] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the filter chamber and its connecting parts when the filter plate is in a clean state;

[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the pretreatment tank and its connecting parts in the stirring state of the stirring rod;

[0024] Figure 5 for Figure 4 A partial enlarged schematic diagram of B in the figure.

[0025] In the figure: 1. Sequential batch type artificial wetland bed; 2. Pump body; 3. Pretreatment tank; 4. Filter chamber; 5. Rotating rod; 6. Rotating blade; 7. Filter plate; 8. Positive and negative screws; 9. Transmission belt structure; 10. Scraper; 11. Limit rod; 12. Sewage outlet; 13. Vertical axis; 14. Drive shell; 15. Horizontal axis; 16. Stirring rod; 17. Water inlet pipe; 18. Motor; 19. Driving bevel gear; 20. Driven bevel gear; 21. Limit groove; 22. Limit strip; 23. Collection box. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 , a sewage treatment device for landscape artificial wetlands, comprising a sequencing batch artificial wetland bed 1, a pump body 2 and a pretreatment tank 3, wherein the sequencing batch artificial wetland bed 1, the pump body 2 and the pretreatment tank 3 are connected by a pipeline, a filter chamber 4 is fixedly connected to the upper end of the pretreatment tank 3, a rotating rod 5 is rotatably provided in the filter chamber 4, a plurality of rotating blades 6 are fixedly provided on the rotating rod 5, a filter plate 7 is fixedly provided in the filter chamber 4, a forward and reverse screw 8 is rotatably provided in the filter chamber 4, one end of the forward and reverse screw 8 and the rotating rod 5 pass through the filter chamber 4 and are connected to a transmission belt structure 9, a scraper 10 is threadedly connected to the forward and reverse screw 8, the scraper 10 is slidably connected to a limit rod 11 fixedly provided in the filter chamber 4, and sewage outlets 12 are respectively provided on both sides of the filter chamber 4;

[0030] A vertical shaft 13 is rotatably provided in the pretreatment tank 3 , and the vertical shaft 13 is rotatably connected to a driving shell 14 fixedly provided in the treatment tank. Four horizontal shafts 15 are rotatably provided outside the driving shell 14 , and a plurality of stirring rods 16 are fixedly provided on the vertical shaft 13 and the horizontal shaft 15 .

[0031] In this embodiment, the sewage pump transports the sewage into the filter chamber 4, and the flow of the sewage impacts the rotating blade 6, causing the rotating blade 6 to rotate, and then the sewage continues to flow downward and is filtered through the filter plate 7. The filtered sewage will enter the pretreatment tank 3. While the rotating blade 6 rotates, the rotating blade 6 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the forward and reverse screws 8 to rotate through the transmission belt structure 9, so that the scraper 10 moves back and forth along the limit rod 11, and the lower end of the scraper 10 contacts the filter plate 7, so that the scraper 10 scrapes and removes the impurities intercepted above the filter plate 7, and pushes the impurities out of the two sewage outlets 12, thereby automatically cleaning the filter plate 7. The entire process of cleaning the filter plate 7 is driven by the flow of water to drive the forward and reverse screws 8 to rotate, without the use of electrical equipment, which is more energy-saving.

[0032] More specifically, the force of the water flow when the sewage enters the filter chamber 4 drives the rotating rod 5 and the forward and reverse screws 8 to rotate, so that the scraper 10 moves back and forth to scrape and clean the filter plate 7. After the sewage enters the pretreatment tank 3, a dosing hopper is provided at the upper end of the pretreatment tank 3, and the medicine required to adjust the water quality parameters is placed from the dosing hopper into the pretreatment tank 3, and then the vertical axis 13 and the horizontal axis 15 rotate, so that the vertical axis 13 drives the stirring rod 16 thereon to stir the sewage and the medicine, and at the same time, the horizontal axis 15 drives the stirring rod 16 thereon to turn over the sewage at the bottom of the pretreatment tank 3, so as to stir it with the medicine, make it more evenly stirred, and avoid the occurrence of a stirring dead angle at the bottom of the pretreatment tank 3.

[0033] See also Figure 1-5 As an implementation method for conveying sewage to the filter chamber 4 : a water inlet pipe 17 is fixedly provided at the upper end of the filter chamber 4 .

[0034] Specifically, an external sewage pump transports sewage from the water inlet pipe 17 to the filter chamber 4 .

[0035] See also Figure 1-5 As an implementation method for rotating the stirring rod 16: a motor 18 is fixedly provided at the upper end of the pretreatment tank 3, and the driving end of the motor 18 extends into the treatment tank and is fixedly connected to the vertical shaft 13. The lower end of the vertical shaft 13 extends into the driving shell 14 and is fixedly connected to a driving bevel gear 19. One end of each of the horizontal shafts 15 extends into the driving shell 14 and is fixedly connected to a driven bevel gear 20, and the driven bevel gear 20 is meshed and connected with the driving bevel gear 19.

[0036] Specifically, the motor 18 is started, and the motor 18 drives the vertical shaft 13 to rotate, and the vertical shaft 13 drives the stirring rod 16 thereon to rotate, so as to stir and mix the sewage and the reagent in the pretreatment tank 3. While the vertical shaft 13 rotates, the vertical shaft 13 drives the driving bevel gear 19 to rotate, and the driving bevel gear 19 drives four driven bevel gears 20 to rotate, and the driven bevel gear 20 drives the horizontal shaft 15 to rotate, and the horizontal shaft 15 drives the stirring rod 16 thereon to rotate, so that the sewage and the reagent at the bottom of the pretreatment tank 3 are turned over and stirred, thereby increasing the uniformity of the stirring.

[0037] See also Figure 1-5 As an implementation method for replacing the collection box 23: four limiting grooves 21 are respectively provided on both sides of the filter chamber 4, and a limiting bar 22 is movably provided in each limiting groove 21, and a collection box 23 is fixedly connected between two adjacent limiting bars 22.

[0038] Specifically, during the process of scraping and cleaning the filter plate 7, impurities will be discharged from the two sewage outlets 12 under the back and forth movement of the scraper 10, and then fall into the collection box 23. When the collection box 23 needs to be disassembled and cleaned, the collection box 23 is pulled, and the collection box 23 drives the two limit bars 22 to move in the limit groove 21. When the limit bars 22 are separated from the limit groove 21, the collection box 23 can be removed, and the cleaned collection box 23 can be installed using the opposite method.

[0039] To sum up, when the overall equipment is in use:

[0040] When the sewage treatment device is required to treat the sewage, the external sewage pump transports the sewage from the water inlet pipe 17 to the filter chamber 4, and the water flow of the sewage impacts the rotating blade 6, causing the rotating blade 6 to rotate, and then the sewage continues to flow downward and is filtered through the filter plate 7. The filtered sewage will enter the pretreatment tank 3. While the rotating blade 6 rotates, the rotating blade 6 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the forward and reverse screws 8 to rotate through the transmission belt structure 9, so that the scraper 10 moves back and forth along the limit rod 11, and the lower end of the scraper 10 contacts the filter plate 7, so that the scraper 10 scrapes and removes the impurities intercepted above the filter plate 7, and pushes the impurities out of the two sewage outlets 12, thereby automatically cleaning the filter plate 7. The entire process of cleaning the filter plate 7 is driven by the flow of water to drive the forward and reverse screws 8 to rotate, without the use of electrical equipment, which is more energy-saving.

[0041] When the filter plate 7 is being cleaned, impurities will be discharged from the two sewage outlets 12 under the back and forth movement of the scraper 10, and then fall into the collection box 23. When the collection box 23 needs to be disassembled and cleaned, the collection box 23 is pulled, and the collection box 23 drives the two limit bars 22 to move in the limit groove 21. When the limit bars 22 are separated from the limit groove 21, the collection box 23 can be disassembled, and the cleaned collection box 23 can be installed using the opposite method.

[0042] When the sewage enters the pretreatment tank 3, a dosing hopper is provided at the upper end of the pretreatment tank 3, and the medicine required to adjust the water quality parameters is placed from the dosing hopper into the pretreatment tank 3, and the motor 18 is started. The motor 18 drives the vertical shaft 13 to rotate, and the vertical shaft 13 drives the stirring rod 16 thereon to rotate, so as to stir and mix the sewage and the medicine in the pretreatment tank 3. While the vertical shaft 13 rotates, the vertical shaft 13 drives the driving bevel gear 19 to rotate, and the driving bevel gear 19 drives four driven bevel gears 20 to rotate, and the driven bevel gear 20 drives the horizontal shaft 15 to rotate, and the horizontal shaft 15 drives the stirring rod 16 thereon to rotate, so that the sewage and the medicine at the bottom of the pretreatment tank 3 are turned over and stirred, thereby increasing the uniformity of its stirring. The pretreated sewage in the pretreatment tank 3 is transported to the sequencing batch type artificial wetland bed 1 through the pump body 2. The packing layer of the sequencing batch type artificial wetland bed 1 includes a biochar packing layer and a gravel packing layer, and wetland plants are planted in the biochar packing layer on the upper part of the sequencing batch type artificial wetland bed 1. The treatment principle of the sequencing batch type artificial wetland bed 1 for sewage is the prior art and will not be described in detail here.

[0043] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A sewage treatment device for landscape artificial wetlands, comprising a sequencing batch artificial wetland bed (1), a pump body (2) and a pretreatment tank (3), characterized in that: The sequencing batch type artificial wetland bed body (1), the pump body (2) and the pretreatment tank (3) are connected by pipelines; the upper end of the pretreatment tank (3) is fixedly connected to a filter chamber (4); a rotating rod (5) is rotatably provided in the filter chamber (4); a plurality of rotating blades (6) are fixedly provided on the rotating rod (5); a filter plate (7) is fixedly provided in the filter chamber (4); a forward and reverse screw (8) is rotatably provided in the filter chamber (4); one end of the forward and reverse screw (8) and the rotating rod (5) pass through the filter chamber (4) and are both connected to a transmission belt structure (9); a scraper (10) is threadedly connected to the forward and reverse screw (8); the scraper (10) is slidably connected to a limit rod (11) fixedly provided in the filter chamber (4); sewage discharge ports (12) are respectively provided on both sides of the filter chamber (4); A vertical shaft (13) is rotatably provided in the pretreatment tank (3), and the vertical shaft (13) is rotatably connected to a driving shell (14) fixedly arranged in the treatment tank. Four horizontal shafts (15) are rotatably provided outside the driving shell (14), and a plurality of stirring rods (16) are respectively fixedly provided on the vertical shaft (13) and the horizontal shaft (15).

2. The sewage treatment device for landscape artificial wetlands according to claim 1 is characterized in that: A water inlet pipe (17) is fixedly provided at the upper end of the filter chamber (4).

3. The sewage treatment device for landscape artificial wetlands according to claim 1 is characterized by: A motor (18) is fixedly provided at the upper end of the pretreatment tank (3), and a driving end of the motor (18) extends into the treatment tank and is fixedly connected to the vertical shaft (13).

4. The sewage treatment device for landscape artificial wetlands according to claim 3 is characterized by: The lower end of the vertical shaft (13) extends into the driving housing (14) and is fixedly connected to a driving bevel gear (19).

5. A sewage treatment device for landscape artificial wetlands according to claim 4, characterized in that: One end of each transverse shaft (15) extends into the driving housing (14) and is fixedly connected to a driven bevel gear (20), and the driven bevel gear (20) is meshedly connected to the driving bevel gear (19).

6. A sewage treatment device for landscape artificial wetlands according to any one of claims 1 or 3, characterized in that: Four limiting grooves (21) are respectively provided on both sides of the filter chamber (4).

7. The sewage treatment device for landscape artificial wetlands according to claim 6 is characterized by: A limiting strip (22) is movably provided in each limiting groove (21).

8. The sewage treatment device for landscape artificial wetlands according to claim 7 is characterized by: A collecting box (23) is fixedly connected between two adjacent limiting strips (22).

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