Domestic sewage pre-aeration conditioning device

Abstract

The utility model discloses a kind of domestic sewage pre-aeration conditioning devices, including mounting seat and aeration disc, aeration disc is installed in mounting seat bottom, further include agitating component and floating component, agitating component is used to agitate sewage, floating component is used to control entire device float in water surface.The utility model in stirring disc adopts cylindrical frame structure and is equipped with several inclined plates in middle, when rotating under the driving of motor, both can further break up the bubble discharged by aeration disc, increase the contact area of bubble and sewage, make oxygen more evenly dissolved in sewage, can also drive sewage to form circulating flow, promote the sufficient mixing of microorganism, organic matter and oxygen in sewage, avoid microorganism deposition pool bottom due to local anoxia, accelerate microbial growth metabolism, to improve organic matter degradation efficiency in sewage and pollutant removal effect, improve sewage treatment quality.

Description

Technical Field

[0001] This utility model relates to the technical field of pre-aeration and conditioning devices for domestic sewage, specifically to a pre-aeration and conditioning device for domestic sewage. Background Technology

[0002] In the field of pre-aeration and conditioning technology for domestic sewage, existing conventional pre-aeration devices typically include an aeration tank, aeration components, and a fixed support structure. The aeration components are mostly fixed to the bottom or side wall of the aeration tank using bolts or brackets. Some devices are equipped with an air inlet pipe connected to an external air source. The usage is as follows: an external air source is connected to the aeration components through the air inlet pipe. Air is dispersed by the aeration components and discharged into the sewage in the form of bubbles, providing oxygen for the growth and metabolism of microorganisms in the sewage. The microorganisms then naturally degrade the organic matter in the sewage, achieving pre-aeration and conditioning treatment of domestic sewage. Some devices also allow adjustment of the installation height of the aeration components using simple brackets or fixed seats to adapt to the depth requirements of different aeration tanks.

[0003] However, existing pre-aeration devices have significant shortcomings in practical applications, making it difficult to meet the needs of efficient wastewater treatment: First, existing devices lack dedicated bubble-dispersing and wastewater-stirring structures. The bubbles discharged from the aeration components are relatively large, rise rapidly in the wastewater, and have limited contact area with the wastewater, resulting in low oxygen dissolution efficiency and uneven distribution. Local areas in the wastewater are prone to oxygen deficiency, failing to fully meet the oxygen requirements of microorganisms. Second, without the support of a stirring structure, the wastewater flow is slow, and microorganisms in the wastewater are easily deposited at the bottom of the aeration tank due to gravity, making it difficult to fully mix with organic matter and dissolved oxygen in the wastewater. This limits microbial activity, leading to low organic matter degradation efficiency and poor pollutant removal, failing to achieve the ideal pre-aeration conditioning quality. At the same time, larger bubbles escape from the wastewater surface before fully dissolving, causing a large waste of oxygen and increasing operating costs. Utility Model Content

[0004] The problem this invention aims to solve is to provide a pre-aeration and conditioning device for domestic sewage. In this invention, the stirring disc adopts a cylindrical frame structure with several inclined plates in the middle. When it rotates under the drive of the motor, it can further disperse the bubbles discharged from the aeration disc, increase the contact area between the bubbles and the sewage, and make the oxygen dissolve more evenly in the sewage. It can also drive the sewage to form a circulating flow, promote the full mixing of microorganisms, organic matter and oxygen in the sewage, avoid the deposition of microorganisms at the bottom of the tank due to local hypoxia, accelerate the growth and metabolism of microorganisms, thereby improving the degradation efficiency of organic matter and the removal effect of pollutants in the sewage, and improving the quality of sewage treatment.

[0005] The technical solution provided by this utility model to solve the above problems is as follows: a pre-aeration and conditioning device for domestic sewage, including a mounting base and an aeration disc, the aeration disc being installed at the bottom of the mounting base, and also including an agitation component and a floating component, the agitation component being used to agitate the sewage, and the floating component being used to control the entire device to float on the water surface.

[0006] More preferably, a limiting groove is provided in the middle of the aeration disc.

[0007] More preferably, the agitation assembly includes a lifting frame, a first air inlet pipe, a cover plate, ring buckles, a drive motor, and a mixing disc. The lifting frame is installed on the top of the mounting base. The first air inlet pipe is connected to the top of the aeration disc and passes through the mounting base. The cover plate is placed on the aeration disc. Several ring buckles are rotatably connected to the cover plate and lock the cover plate by fastening the aeration disc. The drive motor is fixed to the inside of the aeration disc by bolts, and the output shaft of the drive motor is keyed to the mixing disc.

[0008] More preferably, the inner wall of the cover plate is bonded with a rubber strip that matches the groove on the aeration disc.

[0009] More preferably, the mixing plate is a cylindrical frame structure with several inclined plates in the middle.

[0010] More preferably, the floating assembly includes a mounting plate, an airbag, a second air intake pipe, and retaining rings. The mounting plate is mounted on a mounting base, the airbag is mounted inside the mounting plate, the second air intake pipe is mounted on the mounting plate and communicates with the airbag, and several retaining rings are mounted between the first air intake pipe and the second air intake pipe.

[0011] Compared with the prior art, the advantages of this utility model are: the stirring disc in this utility model adopts a cylindrical frame structure and has several inclined plates in the middle. When it rotates under the drive motor, it can further disperse the bubbles discharged from the aeration disc, increase the contact area between the bubbles and the sewage, and make the oxygen dissolve more evenly in the sewage. It can also drive the sewage to form a circulation flow, promote the full mixing of microorganisms, organic matter and oxygen in the sewage, avoid microorganisms from settling at the bottom of the tank due to local hypoxia, accelerate the growth and metabolism of microorganisms, thereby improving the degradation efficiency of organic matter and the removal effect of pollutants in the sewage, and improving the quality of sewage treatment.

[0012] The stirring action of the mixing plate in this invention can also prevent organic matter in sewage from undergoing anaerobic reactions under anaerobic conditions, thus avoiding the generation of malodorous gases and harmful substances and reducing harm to the environment and human health. At the same time, it eliminates the need to add excessive treatment agents, which helps to reduce sewage treatment costs and improve the economic efficiency of the device.

[0013] The floating component of this invention can inflate the airbag through the second air inlet pipe, allowing the device to float stably on the sewage surface without relying on the bottom support structure. It can also automatically adjust the floating height according to changes in the sewage level to adapt to the aeration needs of different water depths. At the same time, the fixing ring can limit and fix the first and second air inlet pipes to prevent the pipes from shaking due to water flow impact, ensuring stable airflow and continuous and reliable aeration process.

[0014] The hoisting frame on the top of the mounting base in this invention makes it easy to hoist the entire device into the aeration tank smoothly without the need for complicated fixing and installation procedures. It is convenient to operate and can be adapted to aeration tanks of different specifications, thus expanding the applicability of the device.

[0015] In this invention, the rubber strip on the inner wall of the cover plate precisely matches the limiting groove in the middle of the aeration disc, and the cover plate is locked by a ring buckle. This effectively prevents bubbles from escaping from the top of the aeration disc during the aeration process, forcing more bubbles to enter the deeper layers of sewage, significantly improving the contact efficiency between oxygen and sewage, reducing oxygen waste, and providing sufficient oxygen supply for microorganisms in sewage. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the first partial cross-sectional three-dimensional structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the second partial cross-sectional three-dimensional structure of this utility model.

[0021] Attached diagram labels: 1. Mounting base; 2. Aeration disc; 3. Lifting frame; 4. First air inlet pipe; 5. Cover plate; 6. Ring buckle; 7. Drive motor; 8. Mixing disc; 9. Mounting disc; 10. Airbag; 11. Second air inlet pipe; 12. Fixing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. The term "comprising" and any variations thereof in the specification, claims, and accompanying drawings of the present utility model are intended to cover non-exclusive inclusion.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Furthermore, it should be understood in the description of this utility model that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example: As shown in the attached figure, a pre-aeration and conditioning device for domestic sewage includes a mounting base 1 and an aeration disc 2. The aeration disc 2 is installed at the bottom of the mounting base 1. A limiting groove is formed in the middle of the aeration disc 2. It also includes an agitation component and a floating component. The agitation component is used to agitate the sewage, and the floating component is used to control the entire device to float on the water surface.

[0026] In this embodiment, the agitation assembly specifically includes a lifting frame 3, a first air inlet pipe 4, a cover plate 5, ring buckles 6, a drive motor 7, and a stirring disc 8. The lifting frame 3 is installed on the top of the mounting base 1 and is used to suspend the entire device in the sewage. The first air inlet pipe 4 is connected to the top of the aeration disc 2 and passes through the mounting base 1. The first air inlet pipe 4 is used to assist the aeration disc 2 in delivering air into the sewage. The cover plate 5 is placed on the aeration disc 2, and a rubber strip that matches the groove on the aeration disc 2 is adhered to the inner wall of the cover plate 5. Several ring buckles 6 are rotatably connected to the cover plate 5 and lock the cover plate 5 by fastening the aeration disc 2. The drive motor 7... The aeration disc 2 is bolted to the inside of the aeration disc 2. The output shaft of the drive motor 7 is keyed to the end of the agitator 8. The agitator 8 is a cylindrical frame structure with several inclined plates in the middle. The agitator 8 is used to stir the sewage and introduce air into the sewage, so that the microorganisms in the sewage can get sufficient oxygen supply, thereby accelerating the growth and metabolism of microorganisms, promoting the degradation of organic matter and the removal of pollutants, thereby improving the efficiency and quality of sewage treatment. At the same time, it can also reduce treatment costs and prevent the organic matter in the sewage from undergoing anaerobic reaction under hypoxic conditions, producing foul odors and harmful gases, which would harm the environment and human health. Furthermore, the floating assembly includes a mounting plate 9, an airbag 10, a second air inlet pipe 11, and fixing rings 12. The mounting plate 9 is mounted on the mounting base 1, the airbag 10 is mounted inside the mounting plate 9, and the airbag 10 is used to make the entire device float on the surface of sewage. The second air inlet pipe 11 is mounted on the mounting plate 9 and communicates with the airbag 10. The second air inlet pipe 11 is used to inflate the airbag 10. Several fixing rings 12 are installed between the first air inlet pipe 4 and the second air inlet pipe 11.

[0027] The entire device can be smoothly lowered into the wastewater in the aeration tank using the lifting frame 3 on top of the mounting base 1, eliminating the need for complex installation procedures and adapting to aeration tanks of different sizes. Subsequently, air is introduced into the airbag 10 inside the mounting plate 9 through the second air inlet pipe 11 connected to the airbag 10. The inflated airbag 10 generates sufficient buoyancy, causing the entire device to float stably on the wastewater surface without relying on a bottom support structure. It can automatically adjust its floating height according to changes in the wastewater level, adapting to aeration needs at different water depths. Simultaneously, several fixing rings 12 installed between the first air inlet pipe 4 and the second air inlet pipe 11 provide a limiting and fixing function for the two pipes, preventing the device from floating or the pipes from shaking due to water flow impact during subsequent operation, ensuring the stability of airflow delivery. Connecting the first air inlet pipe 4 to an external air source allows air to be delivered through the first air inlet pipe 4 to the aeration plate 2 installed at the bottom of the mounting base 1. The aeration plate 2 disperses the air into fine bubbles and discharges them into the wastewater, providing oxygen for the microorganisms in the wastewater. Before aeration, the cover plate 5 is placed on the aeration disc 2. The rubber strips adhered to the inner wall of the cover plate 5 are precisely matched with the limiting groove opened in the middle of the aeration disc 2. Then, several rings 6 on the cover plate 5 are rotated to lock the cover plate 5 in place. This structure can effectively prevent bubbles from escaping from the top of the aeration disc 2 during aeration, forcing more bubbles to enter the deeper layers of sewage, improving the contact efficiency between oxygen and sewage, and avoiding oxygen waste.

[0028] The drive motor 7, bolted to the inside of the aeration disc 2, is activated. The output shaft of the drive motor 7 drives the mixing disc 8, which is keyed to the end, to rotate. Because the mixing disc 8 has a cylindrical frame structure with several inclined plates in the middle, its rotation continuously agitates the surrounding sewage. On one hand, it further disperses the bubbles discharged from the aeration disc 2, increasing the contact area between the bubbles and the sewage, allowing oxygen to dissolve more evenly and meeting the oxygen requirements of microorganisms. On the other hand, it promotes the circulation of sewage, ensuring thorough mixing of microorganisms, organic matter, and oxygen. This prevents microorganisms from settling at the bottom of the tank due to localized oxygen deficiency, accelerates their growth and metabolism, and promotes the degradation of organic matter and removal of pollutants, thereby improving sewage treatment efficiency and quality. Simultaneously, continuous agitation prevents anaerobic reactions of organic matter in the sewage under anaerobic conditions, avoiding the production of foul-smelling gases and harmful substances, reducing harm to the environment and human health, and ultimately achieving efficient pre-aeration and conditioning treatment of domestic sewage.

[0029] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A pre-aeration and conditioning device for domestic sewage, comprising a mounting base (1) and an aeration disc (2), wherein the aeration disc (2) is mounted on the bottom of the mounting base (1), characterized in that, It also includes an agitation component and a floating component. The agitation component is used to agitate the sewage, and the floating component is used to control the entire device to float on the water surface. The agitation component includes a hoisting frame (3), a first air inlet pipe (4), a cover plate (5), a ring buckle (6), a drive motor (7), and a mixing plate (8). The hoisting frame (3) is installed on the top of the mounting base (1). The first air inlet pipe (4) is connected to the top of the aeration plate (2) and passes through the mounting base (1). The cover plate (5) is placed on the aeration plate (2). Several ring buckles (6) are rotatably connected to the cover plate (5). The ring buckles (6) fasten the aeration plate (2) to lock the cover plate (5). The drive motor (7) is fixed to the inside of the aeration plate (2) by bolts. The output shaft end of the drive motor (7) is keyed to the mixing plate (8).

2. The domestic sewage pre-aeration and conditioning device according to claim 1, characterized in that, A limiting groove is provided in the middle of the aeration disc (2).

3. The pre-aeration and conditioning device for domestic sewage according to claim 2, characterized in that, The inner wall of the cover plate (5) is bonded with a rubber strip that matches the groove on the aeration disc (2).

4. The domestic sewage pre-aeration and conditioning device according to claim 3, characterized in that, The mixing plate (8) is a cylindrical frame structure with several inclined plates in the middle.

5. A pre-aeration and conditioning device for domestic sewage according to claim 4, characterized in that, The floating assembly includes a mounting plate (9), an airbag (10), a second air intake pipe (11), and a fixing ring (12). The mounting plate (9) is mounted on the mounting base (1), the airbag (10) is mounted inside the mounting plate (9), the second air intake pipe (11) is mounted on the mounting plate (9) and communicates with the airbag (10), and several fixing rings (12) are installed between the first air intake pipe (4) and the second air intake pipe (11).

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