Rural domestic sewage ecological treatment device

Abstract

The utility model provides an ecological treatment device for rural domestic sewage, which comprises a first ecological treatment component and a second ecological treatment component, the first ecological treatment component comprises a first sedimentation tank, an aerobic tank and a second sedimentation tank which are sequentially arranged along the flow direction of the sewage and are sequentially communicated, and a water inlet is arranged at one end of the first sedimentation tank towards the coming direction of the sewage; an opening is formed in the top surface of the second ecological treatment part, a first accommodating space is defined by the second ecological treatment part, wetland plants are planted in the first accommodating space, the end, away from the sewage coming direction, of the second sedimentation tank communicates with the first accommodating space through a connecting pipe, and a sludge discharging opening is formed in the bottom of the first sedimentation tank; the sludge outlet is communicated with an external sludge pump through a sludge pipe, the first sedimentation tank is provided with a sludge scraping element, and the sludge scraping element is used for being attached to the side wall of the first sedimentation tank and can rotate in the first sedimentation tank. The utility model aims to provide an ecological treatment device for rural domestic sewage, which can clean sludge attached in a sedimentation tank in time.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to an ecological treatment device for rural domestic sewage. Background Art

[0002] In order to reduce the pollution of rural domestic sewage to drinking water sources, rivers, lakes, soil and agricultural products, and reduce water environmental risks and the possibility of disease transmission, rural domestic sewage needs to be treated before being discharged.

[0003] Sedimentation is an important part of rural domestic sewage treatment. It uses the principle of gravity sedimentation. After the sewage has been stationary in the sedimentation tank for a period of time, the suspended particles and some dissolved substances in the water are separated, thereby reducing the turbidity and organic load of the sewage. The substances separated from the sewage will be deposited in the sedimentation tank to form sludge. The sludge precipitated in the sedimentation tank needs to be pumped out of the sedimentation tank regularly through the sludge pump. However, after being pumped by the sludge pump, some sludge will still adhere to the side wall of the sedimentation tank. If it is not treated for a long time, these sediments will be firmly bonded to the side wall of the sedimentation tank, affecting the work of the sedimentation tank. Therefore, it is necessary to propose a rural domestic sewage ecological treatment device that can clean the attached sludge in the sedimentation tank in time. Utility Model Content

[0004] The main purpose of the utility model is to provide an ecological treatment device for rural domestic sewage which can timely clean the attached sludge in the sedimentation tank.

[0005] To achieve the above-mentioned purpose, the rural domestic sewage ecological treatment device proposed in the utility model includes a first ecological treatment component and a second ecological treatment component. The first ecological treatment component includes a first sedimentation tank, an aerobic tank and a second sedimentation tank which are arranged in sequence along the sewage flow direction and connected in sequence. The first sedimentation tank is provided with a water inlet at one end facing the sewage direction. The top surface of the second ecological treatment component is open. The second ecological treatment component is surrounded to form a first accommodating space. Wetland plants are planted in the first accommodating space. The end of the second sedimentation tank away from the sewage direction is connected to the first accommodating space through a connecting pipe. A sludge discharge outlet is provided at the bottom of the first sedimentation tank. The sludge discharge outlet is connected to an external sludge pump through a sludge pipe. The first sedimentation tank is provided with a scraper element. The scraper element is used to fit on the side wall of the first sedimentation tank, and the scraper element can rotate in the first sedimentation tank.

[0006] Preferably, the first ecological treatment component is a cylindrical structural member, and the outer shell of the first ecological treatment component encloses a second accommodation space. A plurality of partitions are arranged in sequence in the second accommodation space along the length direction of the first ecological treatment component to separate the second accommodation space into a first sedimentation tank, an aerobic tank and a second sedimentation tank, and the partitions are provided with through holes to connect the first sedimentation tank, the aerobic tank and the second sedimentation tank in sequence through the through holes.

[0007] Preferably, the scraper element includes a scraper plate and two scraper rods, one of the scraper rods is attached to the front side wall of the first sedimentation tank, and the other scraper rod is attached to the rear side wall of the first sedimentation tank, the rotation axis of the scraper rod is coaxially arranged with the first ecological treatment component, the scraper plate is arranged along the length direction of the first ecological treatment component, one end of the scraper plate is connected to one of the scraper rods, and the other end of the scraper plate is connected to the other scraper rod, and the outer side of the scraper plate is attached to the peripheral wall of the sedimentation tank.

[0008] Preferably, the first accommodating space is provided with a filter layer and a covering layer in sequence from bottom to top, the covering layer is planted with the wetland plants, one end of the connecting pipe is connected to the upper part of the second sedimentation tank, and the other end of the connecting pipe is connected to the filter layer.

[0009] Preferably, the filter layer includes a first filter layer, a second filter layer and a third filter layer which are arranged in sequence from the bottom of the first accommodating space to the top of the first accommodating space, the pore diameters of the first filter layer, the second filter layer and the third filter layer decrease in sequence, and the thicknesses of the first filter layer, the second filter layer and the third filter layer decrease in sequence.

[0010] Preferably, the first filter layer is a gravel filter layer, the second filter layer is a charcoal filter layer, and the third filter layer is a gravel filter layer.

[0011] Preferably, the top of the aerobic pool is provided with a plurality of vents, and the aerobic pool is also provided with an aeration pipe, one end of which is connected to the bottom of the internal space of the aerobic pool, and the other end of which passes through the top wall of the aerobic pool for connecting to a ventilation component.

[0012] Preferably, the wetland plants are one or more of reed, iris, cattail and canna.

[0013] Preferably, a plurality of connecting pipes are provided, and the connecting pipes are arranged in sequence and in parallel at one end of the second ecological treatment component facing the sewage and have the same inlet and outlet water heights.

[0014] Preferably, the rural domestic sewage ecological treatment device also includes a septic tank, a sewage inlet is provided at one end of the septic tank facing the sewage direction, a drain outlet is provided at one end of the septic tank away from the sewage direction, and the drain outlet is connected to the top of the second sedimentation tank.

[0015] In the technical solution of the utility model, by setting the scraping element, when the side wall of the first sedimentation tank needs to be cleaned, the scraping element is started, the scraping element is fitted on the side wall of the first sedimentation tank and rotates to scrape off the sludge attached to the side wall of the first sedimentation tank, and the external sludge pump sucks the scraped sludge out of the first sedimentation tank from the sludge discharge port through the sludge pipe, thereby cleaning the sludge on the side wall of the first sedimentation tank in time and preventing the sludge from sticking to the side wall of the first sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the utility model rural domestic sewage ecological treatment device;

[0018] Figure 2 is a schematic diagram of the internal structure of the first ecological processing component;

[0019] Figure 3 This is a schematic diagram of the internal structure of the second ecological processing component.

[0020] Description of Figure Numbers:

[0021] 1-first ecological treatment component; 2-second ecological treatment component; 11-first sedimentation tank; 12-aerobic tank; 121-aeration pipe; 13-second sedimentation tank; 14-scraping element; 141-scraping rod; 142-scraping plate; 3-connecting pipe; 15-partition; 151-through hole; 4-drain pipe.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] The utility model provides an ecological treatment device for rural domestic sewage which can timely clean up the attached sludge in a sedimentation tank.

[0029] Please refer to Figures 1 to 3The rural domestic sewage ecological treatment device comprises a first ecological treatment component 1 and a second ecological treatment component 2. The first ecological treatment component 1 comprises a first sedimentation tank 11, an aerobic tank 12 and a second sedimentation tank 13 which are sequentially arranged and sequentially connected along the sewage flow direction. The first sedimentation tank 11 is provided with a water inlet at one end facing the sewage direction. The top surface of the second ecological treatment component 2 is open. The second ecological treatment component 2 is surrounded by a first accommodating space. Wetland plants are planted in the first accommodating space. The second sedimentation tank 13 is connected to the first accommodating space through a connecting pipe 3 at one end away from the sewage direction. The first sedimentation tank 11 is provided with a sludge pipe. One end of the sludge pipe is connected to the bottom of the first sedimentation tank 11, and the other end of the sludge pipe is connected to the external space. The first sedimentation tank 11 is provided with a scraper element 14. The scraper element 14 is used to fit on the side wall of the first sedimentation tank 11 and the scraper element 14 can rotate in the first sedimentation tank 11.

[0030] In the technical solution of the utility model, by setting the scraper element 14, when the side wall of the first sedimentation tank 11 needs to be cleaned, the scraper element 14 is started, and the scraper element 14 is attached to the side wall of the first sedimentation tank 11 and rotates to scrape off the sludge attached to the side wall of the first sedimentation tank 11. The external sludge pump sucks the scraped sludge out of the first sedimentation tank 11 from the sludge discharge port through the sludge pipe, thereby timely cleaning the sludge on the side wall of the first sedimentation tank 11 and preventing the sludge from adhering to the side wall of the first sedimentation tank 11.

[0031] Preferably, the first ecological treatment component 1 is a cylindrical structural member, and the outer shell of the first ecological treatment component 1 encloses a second storage space, and a plurality of partitions 15 are sequentially arranged in the second storage space along the length direction of the first ecological treatment component 1 to separate the second storage space into a first sedimentation tank 11, an aerobic tank 12, and a second sedimentation tank 13, and the partition 15 is provided with a through hole 151 to sequentially connect the first sedimentation tank 11, the aerobic tank 12, and the second sedimentation tank 13 through the through hole 151. In this embodiment, the partition 15 includes a first partition and a second partition concentrically arranged with the first ecological treatment component 1, and a through hole 151 is provided at one end of the partition 15 facing the top of the first ecological treatment component 1.

[0032] Preferably, the scraper element 14 includes a scraper blade 142 and two scraper rods 141, one of the scraper rods 141 is attached to the front side wall of the first sedimentation tank, and the other scraper rod 141 is attached to the rear side wall of the first sedimentation tank. The rotation axis of the scraper rod 141 is coaxially arranged with the first ecological treatment component 1, and the scraper blade 142 is arranged along the length direction of the first ecological treatment component 1. One end of the scraper blade 142 is connected to one of the scraper rods 141, and the other end of the scraper blade 142 is connected to the other scraper rod 141. The outer side of the scraper blade 142 is attached to the peripheral wall of the sedimentation tank. In this embodiment, the first ecological treatment component 1 also includes a motor, and the scraper rod 141 attached to the front side wall of the sedimentation tank is provided with a connecting rod that passes through the front side wall of the sedimentation tank, and one end of the connecting rod that passes through the sedimentation tank is provided with a gear, and the gear is meshed with the shaft gear of the motor.

[0033] Preferably, the first accommodation space is provided with a filter layer and a covering layer from the bottom to the top, the covering layer is planted with the wetland plants, one end of the connecting pipe 3 is connected to the middle of the second sedimentation tank 13, and the other end of the connecting pipe 3 is connected to the filter layer. The filter layer is provided to further filter the sewage discharged from the connecting pipe 3 into the first accommodation space.

[0034] Preferably, the filter layer comprises a first filter layer, a second filter layer and a third filter layer which are sequentially arranged from the bottom of the first accommodating space to the top of the first accommodating space, the pore diameters of the first filter layer, the second filter layer and the third filter layer decrease sequentially, and the thicknesses of the first filter layer, the second filter layer and the third filter layer decrease sequentially. In this embodiment, a filter cloth is arranged between the third filter layer and the covering soil layer.

[0035] Preferably, the first filter layer is a gravel filter layer, the second filter layer is a charcoal filter layer, and the third filter layer is a gravel filter layer. The charcoal filter layer can remove the odor of the sewage discharged from the connecting pipe 3 into the second accommodation space.

[0036] Preferably, a plurality of vents are provided on the top of the aerobic pool 12, and the aerobic pool 12 is also provided with an aeration pipe 121, one end of the aeration pipe 121 is connected to the bottom of the internal space of the aerobic pool 12, and the other end of the aeration pipe 121 passes through the top wall of the aerobic pool 12 to be connected to the ventilation component. In this embodiment, a vent pipe is provided at the vent hole, one end of the vent pipe is connected to the vent hole, and the other end of the vent pipe extends a set length in a direction away from the first ecological treatment component 1.

[0037] Preferably, the wetland plants are one or more of reed, calamus, cattail and canna. In this embodiment, the covering soil layer comprises a mesh bag and soil, and the mesh bag is provided with an opening for allowing the soil to enter and exit.

[0038] Preferably, a plurality of connecting pipes 3 are provided, and each of the connecting pipes 3 is sequentially arranged in parallel at one end of the second ecological treatment component 2 facing the direction of sewage and has the same inlet and outlet water heights. In the present embodiment, the connecting pipe 3 is a right-angle elbow, and the right-angle elbow includes a first straight pipe, an elbow, and a second straight pipe. The first straight pipe is horizontally arranged, and one end of the first straight pipe is passed through the wall of the second sedimentation tank 13 at one end facing away from the direction of sewage, and the other end of the first straight pipe is passed through the wall of the second ecological treatment component 2 at one end facing the direction of sewage, and the second straight pipe is vertically arranged at one end of the second ecological treatment component 2 facing the direction of sewage, and one end of the second straight pipe is arranged toward the opening, and the other end of the second straight pipe is arranged away from the opening; the elbow is used to connect the first straight pipe with the end of the second straight pipe facing the opening.

[0039] Specifically, the second ecological treatment component 2 further includes a drainage pipe 4, and the drainage pipe 4 is horizontally arranged at the upper part of one end of the second ecological treatment component 2 that is away from the sewage source.

[0040] Preferably, the rural domestic sewage ecological treatment device further comprises a septic tank, wherein a sewage inlet is arranged at one end of the septic tank facing the sewage direction, and a drain is arranged at one end of the septic tank away from the sewage direction, and the drain is connected to the top of the second sedimentation tank 13. In this embodiment, the first sedimentation tank 11 is provided with a first water inlet and a second water inlet, wherein the first water inlet is connected to the drain of the septic tank through a pipe, and the second water inlet is connected to the drain of the kitchen through a pipe.

[0041] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A rural domestic sewage ecological treatment device, characterized in that: It includes a first ecological treatment component and a second ecological treatment component. The first ecological treatment component includes a first sedimentation tank, an aerobic tank and a second sedimentation tank which are arranged in sequence along the sewage flow direction and connected in sequence. The first sedimentation tank is provided with a water inlet at one end facing the sewage direction. The top surface of the second ecological treatment component is open. The second ecological treatment component is surrounded by a first accommodating space. Wetland plants are planted in the first accommodating space. The second sedimentation tank is connected to the first accommodating space through a connecting pipe at one end away from the sewage direction. A sludge discharge outlet is provided at the bottom of the first sedimentation tank. The sludge discharge outlet is connected to an external sludge pump through a sludge pipe. The first sedimentation tank is provided with a scraper element. The scraper element is used to fit on the side wall of the first sedimentation tank, and the scraper element can rotate in the first sedimentation tank.

2. The rural domestic sewage ecological treatment device according to claim 1 is characterized in that: The first ecological treatment component is a cylindrical structural member, and the outer shell of the first ecological treatment component encloses a second accommodation space. A plurality of partitions are arranged in sequence along the length direction of the first ecological treatment component in the second accommodation space to separate the second accommodation space into a first sedimentation tank, an aerobic tank, and a second sedimentation tank. The partitions are provided with through holes to connect the first sedimentation tank, the aerobic tank, and the second sedimentation tank in sequence through the through holes.

3. The rural domestic sewage ecological treatment device according to claim 2 is characterized in that: The scraper element includes a scraper plate and two scraper rods, one of the scraper rods is attached to the front side wall of the first sedimentation tank, and the other scraper rod is attached to the rear side wall of the first sedimentation tank. The rotation axis of the scraper rod is coaxially arranged with the first ecological treatment component. The scraper plate is arranged along the length direction of the first ecological treatment component. One end of the scraper plate is connected to one of the scraper rods, and the other end of the scraper plate is connected to the other scraper rod. The outer side of the scraper plate is attached to the peripheral wall of the sedimentation tank.

4. The rural domestic sewage ecological treatment device according to claim 1 is characterized in that: The first accommodating space is provided with a filter layer and a covering layer in sequence from bottom to top, the covering layer is planted with the wetland plants, one end of the connecting pipe is connected to the upper part of the second sedimentation tank, and the other end of the connecting pipe is connected to the filter layer.

5. The rural domestic sewage ecological treatment device according to claim 4 is characterized in that: The filter layer includes a first filter layer, a second filter layer and a third filter layer which are sequentially arranged from the bottom of the first accommodating space to the top of the first accommodating space, the pore diameters of the first filter layer, the second filter layer and the third filter layer decrease sequentially, and the thicknesses of the first filter layer, the second filter layer and the third filter layer decrease sequentially.

6. The rural domestic sewage ecological treatment device according to claim 5 is characterized in that: The first filter layer is a crushed stone filter layer, the second filter layer is a charcoal filter layer, and the third filter layer is a gravel filter layer.

7. The rural domestic sewage ecological treatment device according to claim 1 is characterized in that: The top of the aerobic pool is provided with a plurality of vents, and the aerobic pool is also provided with an aeration pipe, one end of which is connected to the bottom of the inner space of the aerobic pool, and the other end of which passes through the top wall of the aerobic pool to connect to the ventilation component.

8. The rural domestic sewage ecological treatment device according to claim 1 is characterized in that: The wetland plants are one or more of reed, yellow calamus, cattail and canna.

9. The rural domestic sewage ecological treatment device according to claim 1 is characterized in that: There are multiple connecting pipes, and each of the connecting pipes is arranged in sequence and in parallel at one end of the second ecological treatment component facing the sewage, and the water inlet and outlet heights are the same.

10. The rural domestic sewage ecological treatment device according to any one of claims 1 to 9, characterized in that: It also includes a septic tank, wherein a sewage inlet is arranged at one end of the septic tank facing the sewage direction, and a drain outlet is arranged at one end of the septic tank away from the sewage direction, and the drain outlet is connected to the top of the second sedimentation tank.

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