Energy-saving and environment-friendly wastewater aeration purification device

Abstract

The utility model relates to an energy -conserving and environment -friendly wastewater aeration purification device, including pool body and setting in pool body one -stage sedimentation tank, aeration tank, two -stage sedimentation tank in proper order, the first water outlet of one -stage sedimentation tank front side and the first water inlet of aeration tank front side between, the second water outlet of aeration tank front side and the second water inlet of two -stage sedimentation tank between all are equipped with detachable filter assembly, be equipped with full -coverage type microporous aeration pipe network in aeration tank, and aeration tank top is equipped with the power mechanism of driving microporous aeration pipe network lift, aeration tank top is equipped with the washing mechanism for washing microporous aeration pipe network. The utility model discloses full -coverage type microporous aeration pipe network, and oxygen utilization rate is high, compared with traditional mechanical stirring aeration mode, can energy -conserving reduce significantly, and energy -conserving effect is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an energy-saving and environmentally friendly wastewater aeration and purification device. Background Technology

[0002] In the field of wastewater treatment, aeration tanks are key facilities that introduce air into wastewater, utilizing the metabolic activity of aerobic microorganisms to degrade organic pollutants. Aeration efficiency directly determines the treatment effect and energy consumption level.

[0003] In the prior art, such as Chinese utility model patent with publication number CN211814008U, a wastewater purification tank with an aeration structure is disclosed. This tank uses a movable frame that can move along the partition wall to drive the stirring blades, and a cylinder is used to adjust the height of the stirring blades. This solves, to some extent, the problems of uneven aeration and poor adaptability to water level changes in traditional fixed-type stirring tanks. However, this solution has the following shortcomings:

[0004] Its core power still relies on electric motor-driven mechanical agitation, converting electrical energy into mechanical energy to shear water and introduce air. This method has a relatively low oxygen transfer efficiency (OTE) and high energy loss, failing to meet the requirements of deep energy conservation. The mobile walking frame also requires an additional transmission mechanism, further increasing energy consumption.

[0005] This device relies solely on stirring the water surface with agitator blades for natural reoxygenation, which is a surface aeration method. It has large bubble diameters, limited gas-liquid contact area, and low oxygenation rate and efficiency.

[0006] Its walking wheels and helical gear transmission system have a relatively complex structure. Operating in a humid and corrosive environment for extended periods poses risks of wear and jamming, resulting in high maintenance costs. The filter membrane is fixedly installed, making it prone to clogging and inconvenient to clean and replace. Summary of the Invention

[0007] The present invention aims to address the shortcomings of the existing technology by providing an energy-saving and environmentally friendly wastewater aeration and purification device.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: an energy-saving and environmentally friendly wastewater aeration and purification device, comprising a tank body and a primary sedimentation tank, an aeration tank, and a secondary sedimentation tank arranged sequentially within the tank body. Detachable filter components are provided between the first outlet of the primary sedimentation tank and the first inlet of the aeration tank, and between the second outlet of the aeration tank and the second inlet of the secondary sedimentation tank. A fully covered microporous aeration pipe network is provided within the aeration tank, and a power mechanism for driving the microporous aeration pipe network to rise and fall is provided at the top of the aeration tank. A flushing mechanism for flushing the microporous aeration pipe network is provided at the top of the aeration tank.

[0009] Specifically, the filter assembly includes a fixed sleeve, a filter screen cylinder, and a sealing cap. The fixed sleeve is horizontally connected between the first water outlet and the first water inlet, and between the second water outlet and the second water inlet. The inner wall of the fixed sleeve is provided with an annular retaining ring. The filter screen cylinder is inserted into the fixed sleeve and is limited by the retaining ring. The inner side of the sealing cap is provided with several pressure rods corresponding to the ends of the filter screen cylinder. The sealing cap is threadedly connected to the opening of the fixed sleeve and the pressure rods press the filter screen cylinder tightly.

[0010] Specifically, the microporous aeration network consists of a main pipe, branch pipes, and aeration pipes. Several pairs of branch pipes are symmetrically connected to both sides of the main pipe, and several pairs of aeration pipes are symmetrically connected to the front and rear sides of the branch pipes. The main pipe is connected to an external air source.

[0011] Specifically, the power mechanism includes an inverted L-shaped lifting plate installed at the end of the branch pipe, several electric cylinders installed on both sides of the top of the aeration tank to drive the lifting plate to rise and fall, and several guide wheels installed on the inner side of the lifting plate in contact with the aeration tank.

[0012] Specifically, the flushing mechanism includes several pairs of supports installed on the front and rear sides of the top of the aeration tank, a flushing pipe placed in the supports, pipe clamps installed on the supports for fixing the flushing pipe, and several pairs of nozzles symmetrically and inclinedly arranged at the bottom of the flushing pipe, with the flushing pipe connected to an external water source.

[0013] The beneficial effects of this utility model are:

[0014] High efficiency and energy saving: It adopts a full-coverage microporous aeration pipe network, which has a high oxygen utilization rate. Compared with the traditional mechanical stirring aeration method, the energy consumption is greatly reduced and the energy saving effect is significant.

[0015] Easy maintenance: The entire aeration pipe network is raised and lowered by an electric cylinder, which can adapt to different liquid levels for aeration. It can also be used with the top flushing mechanism for online high-pressure cleaning, which solves the problem of difficult maintenance after the fixed aerator is blocked, saving time and effort.

[0016] Simple and reliable structure: It eliminates the complex gears, wheels and other moving transmission mechanisms, and adopts a mature electric cylinder and guide wheel system to drive the lifting. The structure is simplified, the operation is stable, the failure rate is low and the service life is long.

[0017] Easy-to-maintain filter components: The quick-removable filter cartridge design avoids the problem of fixed filter membranes becoming clogged and unable to be cleaned, ensuring smooth water flow and effective retention of activated sludge. Attached Figure Description

[0018] Figure 1 This is a top view of the present invention;

[0019] Figure 2 This is a schematic diagram of the filter assembly structure of this utility model;

[0020] Figure 3This is a schematic diagram of the microporous aeration pipe network structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the power mechanism structure of this utility model;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0024] In the diagram: 1-Tank body; 2-Primary sedimentation tank; 21-First outlet; 3-Aeration tank; 31-First inlet; 32-Second outlet; 33-Microporous aeration network; 331-Main pipe; 332-Branch pipe; 333-Aeration pipe; 4-Secondary sedimentation tank; 41-Second inlet; 5-Filter assembly; 51-Fixing sleeve; 52-Filter screen cylinder; 53-Sealing cover; 54-Blocking ring; 55-Pressure rod; 6-Power mechanism; 61-Lifting plate; 62-Electric cylinder; 63-Guide wheel; 7-Flushing mechanism; 71-Support; 72-Flushing pipe; 73-Pipe clamp; 74-Nozzle;

[0025] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] like Figures 1-6 As shown, an energy-saving and environmentally friendly wastewater aeration and purification device includes a tank body 1 and a primary sedimentation tank 2, an aeration tank 3, and a secondary sedimentation tank 4 arranged sequentially within the tank body 1. Detachable filter components 5 are provided between the first outlet 21 on the front side of the primary sedimentation tank 2 and the first inlet 31 on the front side of the aeration tank 3, and between the second outlet 32 ​​on the front side of the aeration tank 3 and the second inlet 41 on the secondary sedimentation tank 4. The filter components include a fixed sleeve 51, a filter screen cylinder 52, and a sealing cover 53. The fixed sleeve 51 is horizontally connected between the first outlet 21 and the first inlet 31, and between the second outlet 32 ​​and the second inlet 41. The inner wall of the fixed sleeve 51 is provided with an annular retaining ring 54. The filter screen cylinder 52 is inserted into the fixed sleeve 51 and limited by the retaining ring 54. The inner side of the sealing cover 53 is provided with several pressure rods 55 corresponding to the ends of the filter screen cylinder 52. The sealing cover 53 is threadedly connected to the opening of the fixed sleeve 51, and the pressure rods 55 press the filter screen cylinder 52 tightly. The quick-detachable filter cartridge 52 design is easy to clean and replace, and can always maintain excellent sludge interception effect, prevent activated sludge loss, ensure the continuous and stable operation of the system and the discharge of effluent that meets the standards, and be responsible to the environment.

[0028] The aeration tank 3 is equipped with a fully covered microporous aeration pipe network 33, which consists of a main pipe 331, branch pipes 332, and aeration pipes 333. Several pairs of branch pipes 332 are symmetrically connected to both sides of the main pipe 331, and several pairs of aeration pipes 333 are symmetrically connected to the front and rear sides of the branch pipes 332. The main pipe 331 is connected to an external air source. The fully covered microporous aeration pipe network results in high oxygen utilization and significantly reduced energy consumption compared to traditional mechanical aeration methods, demonstrating remarkable energy-saving effects. Furthermore, low energy consumption indirectly reduces carbon emissions, aligning with green environmental protection principles.

[0029] The top of the aeration tank 3 is equipped with a power mechanism 6 for driving the microporous aeration pipe network 33 to rise and fall. The power mechanism 6 includes an inverted L-shaped lifting plate 61 installed at the end of the branch pipe 332, several electric cylinders 62 installed on both sides of the top of the aeration tank 3 to drive the lifting plate 61 to rise and fall, and several guide wheels 63 installed on the inner side of the lifting plate 61 in contact with the aeration tank 3. The top of the aeration tank 3 is equipped with a flushing mechanism 7 for flushing the microporous aeration pipe network 33. The flushing mechanism 7 includes several pairs of supports 71 installed on the front and rear sides of the top of the aeration tank 3, flushing pipes 72 placed in the supports 71, pipe clamps 73 installed on the supports 71 to fix the flushing pipes 72, and several pairs of nozzles 74 symmetrically and inclinedly arranged at the bottom of the flushing pipes 72. The flushing pipes 72 are connected to an external water source. The entire aeration pipe network is driven to rise and fall by the electric cylinders 52, which can adapt to different liquid levels for aeration. It can also be used in conjunction with the top flushing mechanism 7 for online high-pressure cleaning, solving the problem of difficult maintenance after the fixed aerator is blocked, saving time and effort.

[0030] When this utility model is in operation,

[0031] Primary sedimentation: The wastewater to be treated first enters the primary sedimentation tank 2. The heavier suspended solids naturally settle to the bottom of the tank under the action of gravity, achieving preliminary solid-liquid separation.

[0032] Filtration and Transportation: The supernatant after initial sedimentation flows out through the first outlet 21 and then enters the filter assembly 5 in the connecting pipe. The wastewater passes through the mesh of the filter cylinder 52, where residual fine suspended solids are effectively intercepted, preventing them from entering the subsequent aeration unit. The filtered water enters the aeration tank 3 through the first inlet 31.

[0033] High-efficiency aeration: In aeration tank 3, an external blower continuously supplies air to the microporous aeration pipe network 33. The air escapes from the micropores on the aeration pipes 333 through the main pipe 331 and branch pipes 332, forming a large number of tiny bubbles. These tiny bubbles greatly increase the gas-liquid contact area, providing sufficient dissolved oxygen for the aerobic microorganisms in the tank, enabling them to efficiently degrade organic pollutants in the wastewater. The height of the microporous aeration pipe network 33 can be adjusted according to the liquid level during aeration.

[0034] Sludge-water separation: The mixed liquor, after thorough aeration and purification, containing activated sludge, flows out through the second outlet 32 ​​and passes through another set of filter components 5. The core function of the filter cylinder 52 here is to intercept and retain the activated sludge, preventing it from entering the secondary sedimentation tank 4, while allowing the treated clean water to pass through.

[0035] Secondary sedimentation and clean water discharge: Clean water passing through the filter element 5 enters the secondary sedimentation tank 4 through the second inlet 41 for final sedimentation and separation. The resulting clean water can be discharged or reused in compliance with standards.

[0036] Flushing the aeration network: When increased aeration resistance is detected or regular maintenance is required, the power mechanism 6 is activated. The piston rod of the electric cylinder 62 retracts, smoothly lifting the entire microporous aeration network 33 above the water surface of the aeration tank 3 via the lifting plate 61. Subsequently, the external high-pressure water source is turned on, and water flows through the flushing pipe 72 of the flushing mechanism 7 and is sprayed out at a certain pressure from the inclined nozzle 74, thoroughly cleaning the surface of the aeration pipe 333 from all angles, removing the attached biofilm and impurities. After cleaning, the electric cylinder 62 lowers the network to the optimal working depth.

[0037] Cleaning the filter assembly: When the pressure difference of the filter assembly 5 increases due to the trapping of impurities, simply unscrew the sealing cap 53 to easily remove the filter screen cylinder 52 from the fixed sleeve 51 for manual rinsing or replacement. The operation is simple and quick, without the need to stop the machine or use special tools.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly wastewater aeration and purification device, comprising a tank body (1) and a primary sedimentation tank (2), an aeration tank (3), and a secondary sedimentation tank (4) sequentially arranged within the tank body (1), characterized in that, Detachable filter components (5) are provided between the first outlet (21) on the front side of the primary sedimentation tank (2) and the first inlet (31) on the front side of the aeration tank (3), and between the second outlet (32) on the front side of the aeration tank (3) and the second inlet (41) of the secondary sedimentation tank (4); a fully covered microporous aeration pipe network (33) is provided in the aeration tank (3), and a power mechanism (6) for driving the microporous aeration pipe network (33) to rise and fall is provided on the top of the aeration tank (3); a flushing mechanism (7) for flushing the microporous aeration pipe network (33) is provided on the top of the aeration tank (3).

2. The energy-saving and environmentally friendly wastewater aeration and purification device according to claim 1, characterized in that, The filter assembly includes a fixed sleeve (51), a filter screen cylinder (52), and a sealing cap (53). The fixed sleeve (51) is horizontally connected between the first outlet (21) and the first inlet (31) and between the second outlet (32) and the second inlet (41). The inner wall of the fixed sleeve (51) is provided with an annular retaining ring (54). The filter screen cylinder (52) is inserted into the fixed sleeve (51) and limited by the retaining ring (54). The inner side of the sealing cap (53) is provided with several pressure rods (55) corresponding to the end of the filter screen cylinder (52). The sealing cap (53) is threaded to the opening of the fixed sleeve (51) and the pressure rods (55) press the filter screen cylinder (52) tightly.

3. The energy-saving and environmentally friendly wastewater aeration and purification device according to claim 1, characterized in that, The microporous aeration network (33) consists of a main pipe (331), branch pipes (332), and aeration pipes (333). Several pairs of branch pipes (332) are symmetrically connected on both sides of the main pipe (331), and several pairs of aeration pipes (333) are symmetrically connected on both sides of the branch pipes (332). The main pipe (331) is connected to an external air source.

4. The energy-saving and environmentally friendly wastewater aeration and purification device according to claim 3, characterized in that, The power mechanism (6) includes an inverted L-shaped lifting plate (61) installed at the end of the branch pipe (332), several electric cylinders (62) installed on both sides of the top of the aeration tank (3) to drive the lifting plate (61) to rise and fall, and several guide wheels (63) installed on the inner side of the lifting plate (61) in contact with the aeration tank (3).

5. The energy-saving and environmentally friendly wastewater aeration and purification device according to claim 1, characterized in that, The flushing mechanism (7) includes several pairs of supports (71) installed on the front and rear sides of the top of the aeration tank (3), a flushing pipe (72) placed in the support (71), a pipe clamp (73) installed on the support (71) for fixing the flushing pipe (72), and several pairs of nozzles (74) symmetrically and inclinedly arranged at the bottom of the flushing pipe (72). The flushing pipe (72) is connected to an external water source.

Images