An aeration structure for wastewater treatment

Abstract

This utility model discloses an aeration structure for wastewater treatment, relating to the field of wastewater treatment technology. It includes a first water storage tank, a second water storage tank, a connecting platform, and an aeration assembly. The first water storage tank is equipped with an inlet pipe. The second water storage tank is spaced apart from the first water storage tank, with a drop between them, and is equipped with an outlet pipe. The connecting platform is located between the first and second water storage tanks and has multiple stepped structures, causing its surface to gradually decrease from the first to the second water storage tank, allowing water from the first water storage tank to overflow into the second water storage tank. The aeration assembly is mounted above the connecting platform and is rotatable, contacting the water flow on the platform surface. This aeration structure for wastewater treatment can provide continuous aeration even in environments lacking a stable power source.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an aeration structure for wastewater treatment. Background Technology

[0002] To protect the environment, low-cost, maintenance-free basic wastewater treatment facilities are being built in some areas. Wastewater treatment involves both anaerobic and aerobic reactions. For anaerobic reactions, wastewater only needs to remain in the tank for a certain period to create an anaerobic environment, while for aerobic reactions, the dissolved oxygen level in the wastewater needs to be increased. Existing aeration facilities, such as micro-tube aeration or aeration membranes, require air pumps and stable power systems, making them difficult to apply in low-cost, maintenance-free wastewater treatment facilities. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an aeration structure for wastewater treatment that can continuously aerate even in environments lacking a stable power source.

[0004] An aeration structure for sewage treatment according to an embodiment of the present utility model includes: a first water storage tank, wherein the first water storage tank is provided with a water inlet pipe; The second water storage tank is arranged at an interval from the first water storage tank, and there is a drop between the second water storage tank and the first water storage tank. The second water storage tank is equipped with a water outlet pipe. A connecting platform is provided between the first water storage tank and the second water storage tank. The connecting platform has multiple stepped structures, so that the surface of the connecting platform gradually decreases from the first water storage tank to the second water storage tank. Water in the first water storage tank can overflow to the second water storage tank through the connecting platform. An aeration assembly is mounted above the connecting platform and is capable of rotating and contacting the water flow on the surface of the connecting platform.

[0005] The aeration structure for sewage treatment according to the embodiments of this utility model has at least the following beneficial effects: the first storage tank can serve as an anaerobic zone, and the sewage in the first storage tank is transported to the second storage tank through the connecting platform by overflow; the connecting platform has multiple stepped structures that gradually decrease in height, and the sewage will fall down step by step when flowing on the connecting platform. During the falling process, air is mixed into the sewage, which can supplement dissolved oxygen. At the same time, the connecting platform is also equipped with multiple aeration components. The aeration components can rotate under the action of sewage flow or wind force. During the rotation of the aeration components, air can also be stirred into the sewage, which can also supplement dissolved oxygen.

[0006] According to some embodiments of the present invention, the aeration assembly includes a plurality of first roller brushes, which are arranged parallel to each other, and the rotation axis of the first roller brushes is perpendicular to the water flow direction on the surface of the connecting platform.

[0007] According to some embodiments of the present invention, two adjacent first roller brushes are connected by a transmission connection, so that all the first roller brushes are connected in series.

[0008] According to some embodiments of the present invention, one end of the first roller brush is provided with a plurality of sprockets, and a transmission chain is provided between two adjacent first roller brushes, the transmission chain cooperating with the sprockets for transmission.

[0009] According to some embodiments of the present invention, a fan blade assembly is also included, which is connected to any of the sprockets to drive the first roller brush to rotate.

[0010] According to some embodiments of the present invention, it further includes a power generation device, a power storage device, and an electric drive device. The wind turbine assembly is drivenly connected to the power generation device, the power generation device is electrically connected to the power storage device, the power storage device is electrically connected to the electric drive device, and the electric drive device is drivenly connected to any of the sprockets to drive the first roller brush to rotate.

[0011] According to some embodiments of the present invention, a second roller brush is provided on the side wall of the second water storage tank near the connecting platform, and the rotation axis of the second roller brush is parallel to the rotation axis of the first roller brush.

[0012] According to some embodiments of the present invention, in the vertical direction, the height of the second roller brush is greater than or equal to the height of the water outlet pipe.

[0013] According to some embodiments of the present invention, the water inlet pipe is located at the lower part of the first water storage tank.

[0014] According to some embodiments of the present invention, the water outlet pipe is located at the lower part of the second water storage tank.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a cross-sectional view of the aeration structure for wastewater treatment according to an embodiment of the present invention; Figure 2This is a schematic diagram of the aeration structure used for sewage treatment in an embodiment of this utility model.

[0017] Icon labels: First water storage tank 100, inlet pipe 110, second water storage tank 200, outlet pipe 210, connecting platform 300, aeration component 400, first roller brush 410, sprocket 411, transmission chain 412, fan blade assembly 500, second roller brush 600. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the 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.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] As described in the background section, in order to protect the environment, wastewater treatment facilities are mandated to be built even in scattered residential areas, such as sparsely populated villages. The construction of wastewater treatment facilities requires investment, but the benefits are minimal; therefore, wastewater treatment construction companies tend to build low-cost facilities that require no maintenance.

[0023] Furthermore, in order to reduce electricity costs, refer to Figure 1 As shown, an embodiment of the present invention provides an aeration structure for sewage treatment, which includes a first water storage tank 100, a second water storage tank 200, a connecting platform 300, and an aeration component 400.

[0024] The first water storage tank 100 is provided with an inlet pipe 110; the second water storage tank 200 is arranged at an interval from the first water storage tank 100, and there is a drop between the second water storage tank 200 and the first water storage tank 100, and the second water storage tank 200 is provided with an outlet pipe 210; the connecting platform 300 is arranged between the first water storage tank 100 and the second water storage tank 200, and the connecting platform 300 is provided with multiple stepped structures, so that the surface of the connecting platform 300 gradually decreases from the first water storage tank 100 to the second water storage tank 200, and the water flow in the first water storage tank 100 can overflow to the second water storage tank 200 through the connecting platform 300; the aeration component 400 is mounted above the connecting platform 300, and the aeration component 400 can rotate and contact the water flow on the surface of the connecting platform 300.

[0025] The first storage tank 100 serves as an anaerobic zone. Wastewater is transported to the first storage tank 100 through the inlet pipe 110. By adjusting the area and height of the first storage tank 100, the residence time of the wastewater in the first storage tank 100 can be controlled. When the residence time of the wastewater in the first storage tank 100 exceeds a preset value, the wastewater can fully undergo anaerobic reaction. The wastewater is transported from the first storage tank 100 to the second storage tank 200 via overflow, specifically through the connecting platform 300.

[0026] The connecting platform 300 features a multi-tiered, progressively lower structure. As wastewater flows through the platform, it cascades down, mixing air with the wastewater during this process, thus replenishing dissolved oxygen. Simultaneously, the connecting platform 300 also houses multiple aeration components 400. These components rotate under the influence of wastewater flow or wind, further agitating the wastewater and replenishing dissolved oxygen. Both the cascading wastewater aeration and the rotating aeration components 400 require no stable power source and infrequent manual maintenance, making them suitable for low-cost, maintenance-free, and simple wastewater treatment facilities.

[0027] It is understood that the aeration assembly 400 includes a plurality of first roller brushes 410, which are arranged parallel to each other, and the rotation axis of the first roller brushes 410 is perpendicular to the water flow direction on the surface of the connecting platform 300.

[0028] The first roller brush 410 can be composed of a central rotating shaft and bristles attached to the central rotating shaft. It is important to understand that the bristles need to have a certain rigidity to improve their ability to agitate air into the sewage. The sewage overflows in stages on the connecting platform 300. Specifically, a first roller brush 410 can be set on each step of the structure. Since the sewage is in an overflow state on the connecting platform 300, the depth of the sewage is not deep enough to completely submerge the first roller brush 410. Therefore, during the rotation of the first roller brush 410, the upper bristles can agitate air into the sewage, promoting the dissolution of oxygen in the air into the sewage.

[0029] It is understandable that adjacent first roller brushes 410 are connected by a transmission mechanism, so that all the first roller brushes 410 are driven in series. It should be understood that series transmission means that the rotational movements of each first roller brush 410 are linked together. That is, when any first roller brush 410 is rotated by an external force, that first roller brush 410 acts as the driving member, and the other first roller brushes 410 act as the driven members, rotating synchronously with it.

[0030] Specifically, it can be understood that in a series transmission method, one end of the first roller brush 410 is provided with several sprockets 411, and a transmission chain 412 is provided between two adjacent first roller brushes 410. The transmission chain 412 cooperates with the sprockets 411 for transmission. For example Figure 2 The structure shown.

[0031] It is important to understand that, under normal circumstances, only the lower part of the first roller brush 410 comes into contact with the sewage on the connecting platform 300, and the sewage does not submerge the first roller brush 410. Therefore, the rotating shaft, sprocket 411, and drive chain 412 of the first roller brush 410 are on the surface of the sewage and are not prone to corrosion. Furthermore, a solid lubricant can be applied to the sprocket 411 and drive chain 412. This reduces the friction between the sprocket 411 and drive chain 412, while also providing waterproof protection, slowing down the corrosion rate, and extending their service life.

[0032] Understandably, it also includes a fan blade assembly 500, which is connected to any sprocket 411 to drive the first roller brush 410 to rotate.

[0033] The wind turbine assembly 500 is configured to convert wind energy into mechanical energy. Wind power drives the wind turbine assembly 500 to rotate, which in turn drives any one of the sprockets 411 to rotate via a transmission connection. The first roller brush 410 connected to this sprocket 411 acts as the driving component, driving the other driven components (also first roller brushes 410) to rotate as well. It's important to understand that the windward area of ​​the wind turbine assembly 500 is larger than that of the first roller brush 410, thus resulting in a higher efficiency in converting wind energy into mechanical energy.

[0034] Understandably, it also includes power generation equipment, energy storage equipment, and electric drive equipment. The wind turbine assembly 500 is connected to the power generation equipment via transmission, the power generation equipment is electrically connected to the energy storage equipment, the energy storage equipment is electrically connected to the electric drive equipment, and the electric drive equipment is connected to any sprocket 411 via transmission to drive the first roller brush 410 to rotate.

[0035] Due to the instability of wind energy, it is further possible to convert wind energy into electrical energy for storage. Specifically, the wind turbine assembly 500 rotates, converting wind energy into mechanical energy. The wind turbine assembly 500 is connected to a power generation device, such as a generator, which converts mechanical energy into electrical energy. The power generation device is electrically connected to an energy storage device, such as a battery pack. Finally, the energy storage device is electrically connected to an electric drive device, converting the stored electrical energy into mechanical energy to drive the first roller brush 410 to rotate. The electric drive device is, for example, an electric motor. During windless periods, the energy storage device can still provide a stable power supply to the electric drive device, driving the first roller brush 410 to rotate, ensuring the aeration effect. It should be understood that the generator, battery pack, and electric motor mentioned above are all commonly used existing equipment, and their structure and working principle will not be described in detail here.

[0036] It is understandable that the second water storage tank 200 is provided with a second roller brush 600 on the side wall near the connecting platform 300, and the rotation axis of the second roller brush 600 is parallel to the rotation axis of the first roller brush 410.

[0037] When wastewater enters the second storage tank 200 after passing through the connecting platform 300, it comes into contact with the second roller brush 600, causing the second roller brush 600 to rotate. This further agitates air into the wastewater, increasing the dissolved oxygen content. Preferably, the height of the second roller brush 600 in the vertical direction is greater than or equal to the height of the outlet pipe 210. Only when the height of the second roller brush 600 is greater than or equal to the height of the outlet pipe 210 will the wastewater prevent it from submerging the second roller brush 600; however, it is also necessary to ensure that a portion of the second roller brush 600 remains in contact with the wastewater. More preferably, the height of the second roller brush 600 is the same as the height of the outlet pipe 210, because the height of the outlet pipe 210 controls the liquid level in the second storage tank 200.

[0038] Understandably, the inlet pipe 110 is located at the lower part of the first storage tank 100. After entering the first storage tank 100, the wastewater needs to overflow upwards. Therefore, placing the inlet pipe 110 at a lower position in the first storage tank 100 allows the wastewater to remain in the first storage tank 100 for a longer time, which is more conducive to anaerobic reactions. If the inlet pipe 110 were located at the upper part of the first storage tank 100, the distance between the wastewater and the overflow point would be shorter, potentially causing the wastewater to overflow into the second storage tank 200 via the connecting platform 300 before undergoing anaerobic reactions, resulting in poorer wastewater treatment efficiency.

[0039] It is understandable that the outlet pipe 210 is located at the lower part of the second water storage tank 200. The second water storage tank 200 is used for aerobic reactions. To allow the wastewater overflowing from the connecting platform 300 to the second water storage tank 200 to have a longer retention time, the outlet pipe 210 is located at the lower part of the second water storage tank 200. It should be understood that "the outlet pipe 210 is located at the lower part of the second water storage tank 200" means that the inlet side of the outlet pipe 210 is located at the lower part of the second water storage tank 200; the outlet side of the outlet pipe 210 can be located arbitrarily. Preferably, the outlet pipe 210 is also located on the side away from the connecting platform 300 to prevent wastewater from being discharged from the outlet pipe 210 immediately after entering the second water storage tank 200.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An aeration structure for sewage treatment, characterized by, include: The first water storage tank is equipped with a water inlet pipe; The second water storage tank is arranged at an interval from the first water storage tank, and there is a drop between the second water storage tank and the first water storage tank. The second water storage tank is equipped with a water outlet pipe. A connecting platform is provided between the first water storage tank and the second water storage tank. The connecting platform has multiple stepped structures, so that the surface of the connecting platform gradually decreases from the first water storage tank to the second water storage tank. Water in the first water storage tank can overflow to the second water storage tank through the connecting platform. An aeration assembly is mounted above the connecting platform and is capable of rotating and contacting the water flow on the surface of the connecting platform.

2. The aeration structure for sewage treatment according to claim 1, characterized by, The aeration assembly includes multiple first roller brushes arranged parallel to each other, with the rotation axis of the first roller brushes perpendicular to the water flow direction on the surface of the connecting platform.

3. An aeration structure for sewage treatment according to claim 2, characterised in that, The two adjacent first roller brushes are connected by a transmission, so that all the first roller brushes are connected in series.

4. The aeration structure for sewage treatment according to claim 3, characterized in that, One end of the first roller brush is provided with several sprockets, and a transmission chain is provided between two adjacent first roller brushes. The transmission chain cooperates with the sprockets for transmission.

5. The aeration structure for wastewater treatment according to claim 4, characterized in that, It also includes a fan blade assembly, which is connected to any of the sprockets to drive the first roller brush to rotate.

6. An aeration structure for sewage treatment according to claim 5, characterised in that, It also includes a power generation device, an energy storage device, and an electric drive device. The wind turbine assembly is driven to the power generation device, the power generation device is electrically connected to the energy storage device, the energy storage device is electrically connected to the electric drive device, and the electric drive device is driven to any of the sprockets to drive the first roller brush to rotate.

7. The aeration structure for sewage treatment according to claim 2, characterized by The second water storage tank is provided with a second roller brush on the side wall near the connecting platform, and the rotation axis of the second roller brush is parallel to the rotation axis of the first roller brush.

8. An aeration structure for sewage treatment according to claim 7, characterised in that, In the vertical direction, the height of the second roller brush is greater than or equal to the height of the water outlet pipe.

9. The aeration structure for sewage treatment according to claim 1, characterized by, The water inlet pipe is located at the bottom of the first water storage tank.

10. The aeration structure for sewage treatment according to claim 1, characterized by, The outlet pipe is located at the bottom of the second water storage tank.

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