Aeration filter device

Abstract

The utility model relates to the technical field of environmental protection, and particularly discloses an aeration filter tank device. Comprising a tank body and an aeration assembly arranged in the tank body, a bottom plate is arranged at the bottom of the tank body, and the bottom plate is surrounded by a pair of first side plate and second side plate and is arranged in a sealed manner to form a cavity; the aeration assembly is arranged above the bottom plate; a first partition plate, a second partition plate and a third partition plate are arranged in the cavity; the second partition plate and the third partition plate are arranged on the two sides of the first partition plate. The second partition plate and the third partition plate are perpendicular to the first partition plate. The first partition plate, the second partition plate and the third partition plate are jointed with the bottom plate, the first side plate and the second side plate of the tank body to divide the tank body into a plurality of independent aeration tanks; and an aeration assembly is arranged at the bottom of each aeration tank. And each aeration tank is independently arranged, so that each aeration tank is independently adjusted. And the processing requirements are matched more accurately, so that the overall processing effect is improved, and unnecessary energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to an aeration filter device. Background Art

[0002] The aerated filter (BAF), a wastewater treatment technology that rapidly gained popularity in Europe and the United States in the late 1980s, marked not only a significant advancement in biofilm treatment processes but also a wastewater treatment system that integrates biological oxidation and suspended solids retention. This process, through its specialized filler layer structure, provides an ideal growth environment for microorganisms, enabling them to efficiently degrade a wide range of pollutants in wastewater under abundant oxygen conditions. BAFs demonstrate exceptional removal capabilities for everything from suspended solids (SS) to chemical oxygen demand (COD), biological oxygen demand (BOD), nutrients such as nitrogen and phosphorus, and hazardous organic matter (AOX). In recent years, with the continued maturity and widespread adoption of BAF technology, an increasing number of wastewater treatment projects have begun adopting this advanced process. Numerous empirical studies and case studies, both domestically and internationally, have demonstrated the robustness and adaptability of BAFs in treating diverse wastewater types. For example, in treating municipal wastewater, BAFs effectively remove pollutants such as organic matter, nitrogen, and phosphorus. Similarly, in treating industrial wastewater, BAFs can achieve satisfactory treatment results by adjusting filler type and operating parameters.

[0003] The patent "A Biological Aerated Filter" (publication number CN204981318U, hereinafter referred to as prior art 1) discloses that prior art 1 uses an air dissolved pump to pump untreated sewage into the filter body while simultaneously inhaling air, so that the air and sewage are mixed and then enter the aeration device. This has a simple structure and solves the problems of insufficient and uneven oxygen supply in existing biological aerated filters. At the same time, the aeration device is used to uniformly mix air in the sewage in the form of nano-scale bubbles, resulting in sufficient and uniform aeration and improved oxygen utilization. In addition, during the process of inhaling air, the bubbles are small, so the impact on the biofilm on the filter material layer is small, which is conducive to the growth of the biofilm and increases the treatment load.

[0004] Although the existing technology 1 has significantly alleviated the problem of insufficient and uneven oxygen supply in the aerated biological filter by innovatively introducing an air suction mechanism. During periods of good water quality and low oxygen demand, excessive aeration will not only waste energy, but may also cause excessive oxidation of microorganisms, affecting the stability and treatment efficiency of the biological filter. On the contrary, when water quality deteriorates and oxygen demand surges, if the aeration volume cannot be increased in time, it will lead to insufficient oxygen supply and decreased microbial activity, which will in turn affect the water quality treatment effect. This one-size-fits-all control method is obviously unable to adapt to the actual needs of water quality fluctuations, and is likely to lead to excessive energy consumption or poor treatment effects. Utility Model Content

[0005] In view of this, an embodiment of the present invention provides an aeration filter device to solve the problem in the prior art that a single aeration volume adjustment cannot well adapt to the needs of water quality fluctuations, which easily leads to excessive energy consumption or poor treatment effect.

[0006] An embodiment of the present utility model provides an aeration filter device, comprising a tank body and an aeration assembly arranged in the tank body; a bottom plate is provided at the bottom of the tank body, and the bottom plate is surrounded and sealed by a pair of first side plates and a second side plate to form a cavity; the aeration assembly is arranged above the bottom plate; a first baffle, a second baffle and a third baffle are provided inside the cavity; the second baffle and the third baffle are respectively provided on both sides of the first baffle; the second baffle and the third baffle are both arranged perpendicular to the first baffle; the first baffle, the second baffle and the third baffle are all joined to the bottom plate, the first side plate and the second side plate of the tank body to divide the tank body into a plurality of separate aeration tanks; a set of aeration assembly is provided at the bottom of each of the aeration tanks.

[0007] Preferably, a plurality of partition reinforcement ribs are provided at the joints of the first partition, the second partition and the third partition; the partition reinforcement ribs connect the first partition, the second partition and the first partition and the third partition.

[0008] Preferably, the aeration assembly includes a flushing main pipe, a water inlet main pipe and an aeration main pipe; the flushing main pipe, water inlet main pipe and aeration main pipe are respectively provided with a flushing branch pipe, a water inlet branch pipe and an aeration branch pipe; the flushing main pipe, water inlet main pipe and aeration main pipe are respectively connected to the flushing branch pipe, water inlet branch pipe and aeration branch pipe.

[0009] Preferably, the flushing main pipe, water inlet main pipe and aeration main pipe are supported by a first bracket; the flushing branch pipe, water inlet branch pipe and aeration branch pipe are supported by a second bracket; the second bracket is arranged on both sides of the flushing branch pipe, water inlet branch pipe and aeration branch pipe.

[0010] Preferably, the first bracket and the second bracket are connected via a support plate; the flushing branch pipe, the water inlet branch pipe and the aeration branch pipe are all fixed to the support plate via fixing ropes.

[0011] Preferably, the first side plate and the second side plate of the tank body are provided with inspection ports corresponding to the number of the aeration tanks; each inspection port is connected to one of the aeration tanks; and the inspection ports are closed or opened by flanges.

[0012] Preferably, at least one first drain pipe is provided at the bottom of each aeration tank; a second drain pipe is further provided at the bottom of the cavity; and the second drain pipe connects each aeration tank.

[0013] Preferably, a pair of the first side panels and the second side panels are both wrapped by cross-staggered side panel reinforcement ribs.

[0014] Preferably, the top of the pool body is surrounded by overflow side plates and an overflow bottom plate; the overflow side plates and the overflow bottom plate are arranged on the outer periphery of the pool body to form an overflow trough; the overflow side plates are extended upward to increase the depth of the overflow trough.

[0015] Preferably, the overflow trough is provided with a plurality of third drain pipes; the third drain pipes connect the overflow trough with the outside to discharge the liquid in the overflow trough.

[0016] The aeration filter device provided by the utility model has the following beneficial effects:

[0017] In the present invention, since each aeration tank exists independently, the water quality in each tank can be monitored and analyzed separately, thereby achieving independent adjustment of each aeration tank. In this way, when the water quality fluctuates, the aeration volume and aeration time of each tank can be adjusted according to the actual situation of each tank, more accurately matching the treatment needs, thereby improving the overall treatment effect and reducing unnecessary energy consumption. And under this structure, it is no longer necessary to perform uniform high-intensity aeration on the entire tank body, avoiding the problem of excessive energy consumption. By optimizing and adjusting each independent aeration tank, precise control of the aeration volume can be achieved, significantly reducing the energy consumption generated during the aeration process, thereby improving energy utilization efficiency. Each individual aeration tank is provided with an independent aeration component, which ensures that the gas distribution in each tank is more uniform, avoiding the problem of insufficient or excessive local aeration that is prone to occur in traditional single tank bodies. This setting is conducive to maintaining the uniformity of water quality in each tank and improving the overall water quality treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work, and these are all within the scope of protection of the present invention.

[0019] Figure 1 It is a structural diagram of an aeration filter device;

[0020] Figure 2 It is a schematic diagram of the internal structure of an aeration filter device;

[0021] Figure 3 It is a schematic diagram of the top structure of an aeration filter device;

[0022] Figure 4It is a side structural diagram of an aeration filter device;

[0023] Figure 5 It is a schematic diagram of the side internal structure of an aeration filter device;

[0024] Parts and numbers in the picture:

[0025] 100 - tank body, 110 - bottom plate, 120 - first side plate, 130 - second side plate, 131 - side plate reinforcement, 141 - first baffle, 142 - second baffle, 143 - third baffle, 144 - baffle reinforcement, 150 - aeration tank, 161 - flushing main pipe, 162 - water inlet main pipe, 163 - aeration main pipe, 164 - flushing branch pipe, 165 - water inlet branch pipe, 166 - aeration branch pipe, 171 - first bracket, 172 - second bracket, 173 - support plate, 174 - fixing rope, 180 - inspection port, 181 - flange, 191 - overflow side plate, 192 - overflow bottom plate, 193 - overflow trough, 194 - third drain pipe;

[0026] 200-Filter material layer. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, elements defined by the phrase "comprises..." do not exclude the presence of additional identical elements in the process, method, article, or device that includes the elements. If there is no conflict, the embodiments of the present invention and the various features therein may be combined with each other and are all within the scope of protection of the present invention.

[0028] Example 1

[0029] See Figure 1 The present invention provides an aeration filter device that increases dissolved oxygen in the water by introducing air or oxygen into the water. Aeration primarily involves delivering air into the water through aeration components at the bottom or sides. This air enters the water in the form of bubbles, making full contact with the water and thereby increasing the oxygen content. As the bubbles rise, oxygen dissolves in the water, and the movement of the bubbles agitates the water, making the dissolved oxygen in the water more evenly distributed.

[0030] The aeration filter also contains a filter media layer 200 (e.g., sand, activated carbon, or ceramsite). These media serve as media for physical, chemical, and biological filtration. As water passes through these filter media layers 200, suspended solids are physically trapped, while organic pollutants come into contact with the microorganisms on the filter media, where they are degraded and adsorbed. The microorganisms form a biofilm within the filter media layer 200, which further biodegrades organic pollutants in the water, converting them into harmless substances such as carbon dioxide and water through the microbial metabolism.

[0031] See Figure 2 and Figure 3 The aeration filter device in this embodiment is provided with a tank body 100 and an aeration assembly arranged inside the tank body 100. Furthermore, a filter material layer 200 is also provided in the tank body 100; the aeration tanks 150 are all provided with a filter material layer 200, and the liquid is passed through the bottom of the aeration tank 150 through the filter material layer 200 and floats to the top of the aeration tank 150. The tank body 100 of the device is a rectangular or circular container, and a solid bottom plate 110 is provided at the bottom. The bottom plate 110 is surrounded by a pair of first side plates 120 and a second side plate 130 on both sides to form a sealing structure, thereby forming an airtight cavity to prevent external water and impurities from entering, and ensure the stability and sealing of the internal treatment process. The material of the bottom plate 110 is usually selected from corrosion-resistant and high-compressive strength materials, such as stainless steel or high-strength plastic, to adapt to the high oxygen content and chemical substances in the water during the aeration process. The aeration assembly is arranged above the bottom plate 110 of the tank body 100. Each aeration assembly can introduce sewage, air, oxygen and flushing water into the tank body 100 through a pipe, ensuring flexibility and targeting during the treatment process.

[0032] Furthermore, the aeration assembly is equipped with a flow regulating valve, which can adjust the flow of various gases (air, oxygen) according to the water quality and treatment requirements in the tank body 100, thereby achieving precise control of the aeration amount.

[0033] The device uses an aeration assembly to evenly introduce wastewater to be treated into tank 100, distributing it uniformly within the tank 100 before proceeding to the next aeration treatment step. Air or oxygen is introduced into tank 100. The core function of the aeration assembly is to evenly inject air or high-concentration oxygen into the wastewater within tank 100 through bubble diffusion. Oxygen in the air dissolves into the water, increasing the dissolved oxygen content, thereby providing the necessary oxygen for the growth and reproduction of aerobic microorganisms in the water and effectively improving the efficiency of biodegradation of organic pollutants.

[0034] Furthermore, after the aeration filter has been operating for a period of time, the filter media may accumulate a large amount of contaminants and biofilm, resulting in a decrease in filtration efficiency. The aeration assembly can periodically introduce flushing water to clean the filter media through water impact and bubble agitation, removing impurities and microorganisms accumulated on the surface, thereby restoring the filtration performance of the filter and extending the service life of the tank body 100 and the filter media layer 200.

[0035] See Figure 1 and Figure 2 In this embodiment, a first baffle 141, a second baffle 142, and a third baffle 143 are disposed within the chamber to divide the chamber into four separate aeration tanks 150, and a separate aeration assembly is provided in each separate aeration tank 150. When the ends of the first baffle 141 are connected to the pair of first side panels 120, the first baffle 141 is perpendicular to the first side panels 120 and parallel to the second side panels 130. When the first side panels 120 are connected to the pair of second side panels 130, the first baffle 141 is perpendicular to the second side panels 130 and parallel to the first side panels 120. The second baffle 142 and the third baffle 143 are respectively disposed on either side of the first baffle 141 and are perpendicular to the first baffle 141. The first, second, and third baffles 141, 142, and 143 are sealed against the bottom panel 110, the first side panels 120, and the second side panels 130, preventing the sewage within them from circulating or mixing.

[0036] In this embodiment, since each aeration tank 150 exists independently, the water quality conditions in each aeration tank 150 can be monitored and analyzed separately, thereby achieving independent adjustment of each aeration tank 150. Therefore, when the water quality fluctuates, the aeration volume and aeration time of each individual aeration tank 150 can be adjusted according to the actual situation of each individual aeration tank 150 to more accurately match the treatment needs, thereby improving the overall treatment effect and reducing unnecessary energy consumption. When each aeration tank 150 is independent, it is no longer necessary to perform uniform high-intensity aeration on the entire tank body 100, avoiding the problem of excessive energy consumption. By optimizing the adjustment of each independent aeration tank 150, precise control of the aeration volume can be achieved, significantly reducing the energy consumption generated during the aeration process, thereby improving energy utilization efficiency.

[0037] Since each individual aeration tank 150 is provided with an independent aeration component, the gas distribution in each aeration tank 150 will be more uniform during aeration, avoiding the problem of local insufficient aeration or excessive aeration that is prone to occur in a traditional single tank body 100, which is conducive to maintaining the uniformity of water quality in each tank and improving the overall water quality treatment effect.

[0038] See Figure 1 A plurality of partition reinforcement ribs 144 are provided at the joints of the first partition 141 , the second partition 142 and the third partition 143 ; the partition reinforcement ribs 144 connect the first partition 141 , the second partition 142 and the first partition 141 , the third partition 143 .

[0039] Generally, during the sewage treatment process, the tank body 100 must withstand significant water flow impacts. Simultaneously, bubbles generated during aeration exert continuous pressure on the baffles. Under prolonged exposure to this water flow and gas pressure, the baffles may bend, deform, or even break. By providing baffle reinforcement ribs 144 at the baffle joints, the baffles can be more stable in the face of these pressures, reducing the likelihood of deformation and enabling the entire aeration filter apparatus to maintain efficient and stable operation even under high-intensity operating conditions.

[0040] See Figure 1 、 Figure 2 and Figure 4 The baffle reinforcement ribs 144 connect the joints between the first baffle 141 and the second baffle 142, and between the first baffle 141 and the third baffle 143, providing reinforcement and effectively increasing the connection strength between the baffles. They prevent the baffles from deforming, bending, or shifting due to water flow or aeration disturbances, thereby ensuring the structural stability of the entire tank body 100. The baffle reinforcement ribs 144 increase the compressive strength of the joints, allowing the baffles to better withstand water pressure and the rising force of bubbles generated during aeration, preventing damage or cracks in the baffles due to long-term stress. Furthermore, the reinforcement ribs improve the structure's seismic resistance under vibration or impact, extending the life of the device. Providing reinforcement ribs at the baffle joints allows for a tighter connection between the baffles and the bottom plate 110 and side plates, reducing gaps and effectively preventing water leakage through the joints. This is crucial for maintaining watertightness within the aeration tank 150, helping to ensure the sealing of the aeration tank 150 and protect the water quality from external contamination. The reinforcement ribs disperse the stress on the baffles, distributing it more evenly across the baffles and the cell body 100, avoiding stress concentration in a single location and reducing fatigue damage to the baffles. This significantly extends the service life of the baffles and reduces the frequency and cost of maintenance due to baffle damage.

[0041] See Figure 2 、 Figure 3 and Figure 5 The aeration assembly includes a flushing main pipe 161, a water inlet main pipe 162, and an aeration main pipe 163; each of the flushing main pipe 161, water inlet main pipe 162, and aeration main pipe 163 is provided with a flushing branch pipe 164, a water inlet branch pipe 165, and an aeration branch pipe 166; the flushing main pipe 161, water inlet main pipe 162, and aeration main pipe 163 are connected to the flushing branch pipe 164, water inlet branch pipe 165, and aeration branch pipe 166, respectively. Independent aeration tanks 150 effectively avoid the dead spots that can easily occur in a single tank 100. The water flow path in each aeration tank 150 is more clearly defined, resulting in more complete aeration, which facilitates the degradation of pollutants. Through precise control of water residence time, the filtration and purification effects can be further optimized.

[0042] Furthermore, the flushing main pipe 161 is used to provide and transport flushing water for cleaning the interior of the filter tank and the filter media layer 200, preventing excessive accumulation of impurities, suspended matter, and biofilm in the filter media layer 200 during long-term operation, which could lead to filter media clogging. Flushing branch pipes 164 are connected to the flushing main pipe 161, directing flushing water from the main pipe to specific areas of the filter tank, ensuring uniform and thorough cleaning of the entire filter media layer 200 and the interior of the tank body 100. Flushing branch pipes 164 can directly flush the filter media layer 200 or the walls of the tank body 100 through multiple branch pipes, restoring the permeability of the filter media layer 200.

[0043] Furthermore, the main inlet pipe 162 is used to introduce wastewater to be treated into the aeration filter, evenly transporting external wastewater into the aeration filter body 100, ensuring that the aeration filter can properly receive water for treatment. The branch inlet pipes 165 are responsible for directing wastewater from the main inlet pipe 162 to various areas of the aeration filter, ensuring a uniform water flow to each area. By properly arranging the branch inlet pipes 165, it is possible to avoid over- or under-inflow in certain areas, ensuring uniformity in the aeration and filtration processes.

[0044] Furthermore, the aeration main pipe 163 is used to transport air or oxygen to the aeration filter so that the water in the tank body 100 obtains sufficient dissolved oxygen to support the metabolic activities of aerobic microorganisms. At the same time, the bubbles stir the water flow to promote the full contact and reaction between pollutants in the water and oxygen. The aeration branch pipe 166 is connected to the aeration main pipe 163 and directly introduces air or oxygen into various areas of the filter or the filter material layer 200. Through the distribution of the aeration branch pipes 166, bubbles can be evenly introduced into the filter water to ensure that the aeration effect in each filter unit is consistent. The aeration branch pipe 166 can also further optimize the aeration effect by setting pores of different sizes or shapes to control the size and flow rate of the bubbles. These pipes work together to ensure that the aeration filter maintains efficient aeration, filtration and self-cleaning capabilities during the sewage treatment process, thereby improving the sewage treatment effect and the operating efficiency of the equipment.

[0045] See Figure 2 During use, sewage enters through the water inlet main 162. Multiple outlets are provided through the water inlet branch 165, directing the sewage into the aeration tank 150. The aeration filter introduces air or oxygen into the water through the aeration main 163 and aeration branch 166, increasing the dissolved oxygen in the water. Aeration primarily involves delivering air or oxygen to the water through the bottom aeration main 163. This air enters the water in the form of bubbles, making full contact with the water, thereby increasing the oxygen content in the water. As the bubbles rise, the oxygen dissolves into the water. The movement of the bubbles also stirs the water, making the dissolved oxygen more evenly distributed. The sewage then passes through the filter media layer 200 for filtration. As the water passes through these filter media layers 200, suspended matter is physically trapped, while organic pollutants come into contact with the microorganisms on the filter media, where they are degraded and adsorbed. The aeration filter effectively removes organic pollutants from the water. By adding oxygen to the water, aerobic microorganisms can more effectively degrade organic matter, converting it into harmless substances such as carbon dioxide and water. The biofilm on the filter layer 200 can also capture and degrade organic matter, playing a role in biodegradation. The high dissolved oxygen content helps to oxidize the reducing pollutants in the water (such as iron ions and manganese ions), converting these pollutants into insoluble substances and precipitating them, thereby being retained by the filter layer 200. The filter layer 200 in the filter tank can retain suspended matter and particulate pollutants in the water. When water passes through the filter layer 200, larger particles are physically retained, while smaller particles may be adsorbed on the filter surface or in the biofilm. This physical filtration effect makes the effluent clearer and reduces the burden of subsequent treatment.

[0046] After filtration, pollutants will remain in the filter layer 200. When too many pollutants remain, it will affect the sewage treatment effect. At this time, clean water can be introduced through the flushing main pipe 161. Clean water can be introduced into various areas through the flushing main pipe 161, so that the clean water can penetrate upward and flush the pollutants in the filter layer 200, thereby extending the service life of the filter layer 200.

[0047] See Figure 2 and Figure 3 The flushing main pipe 161, water inlet pipe 162, and aeration main pipe 163 are supported by a first bracket 171; the flushing branch pipe 164, water inlet pipe 165, and aeration branch pipe 166 are supported by a second bracket 172; the second bracket 172 is located on both sides of the flushing branch pipe 164, water inlet pipe 165, and aeration branch pipe 166. The first bracket 171 and the second bracket 172 are connected by a support plate 173; the flushing branch pipe 164, water inlet pipe 165, and aeration branch pipe 166 are all fixed to the support plate 173 by fixing ropes 174. During the layout process, these pipes need to be supported by the first bracket 171, the second bracket 172, and the support plate 173, and also fixed by the fixing ropes 174, so that the position of these pipes is fixed and they can operate stably.

[0048] For further information, see Figure 4 Each aeration tank 150 needs to be provided with a filter material layer 200, which also needs to be fixed and spaced a certain distance from the aeration assembly. Therefore, by upwardly positioning the first bracket 171 and the second bracket 172, the filter material layer 200 can be fixed and arranged.

[0049] See Figure 2 The first side panel 120 and the second side panel 130 of the tank body 100 are provided with inspection ports 180 corresponding to the number of the aeration tanks 150; each inspection port 180 is connected to one of the aeration tanks 150; the inspection ports 180 are closed or opened by flanges 181. Since each aeration tank 150 exists independently, when a problem occurs in a certain aeration tank 150, only the tank can be stopped for maintenance or repair without shutting down the entire system. This design improves the operational reliability of the system and reduces the downtime caused by the failure of a single tank body 100, thereby ensuring the continuity and stability of the treatment process. After being separated into multiple independent aeration tanks 150, each tank can be maintained and managed separately, reducing the difficulty of maintenance. At the same time, the aeration components of each tank are relatively independent, which is convenient for regular cleaning and inspection, further reducing maintenance costs.

[0050] At least one first drain pipe is provided at the bottom of each aeration tank 150; a second drain pipe is also provided at the bottom of the cavity; the second drain pipe connects each aeration tank 150. The drain pipe can drain residual liquid and viscous pollutants.

[0051] The first drain pipe at the bottom of each aeration tank 150 directly drains residual liquid and deposited viscous pollutants within the tank. This design allows each aeration tank 150 to be emptied independently when cleaning is required, eliminating the need to shut down other aeration tanks 150, facilitating maintenance and cleaning. The second drain pipe connects all aeration tanks 150, allowing for centralized drainage of waste liquid and sediment from multiple aeration tanks 150. When the entire system requires thorough cleaning, the second drain pipe can be used for centralized emptying, further improving overall drainage efficiency. The first and second drain pipes allow for the timely removal of sediment, viscous sludge, and other contaminants from the bottom of each aeration tank 150. Over long-term operation, if these sediments are not promptly removed, they may accumulate at the bottom of the aeration tank 150, clogging the filter media and affecting aeration efficiency and water flow. The provision of drain pipes reduces the risk of such clogging and maintains normal system operation. The drain pipes regularly remove sludge and residual liquid, reducing the potential for corrosion to the tank body 100 and aeration components, thereby extending the service life of the equipment. Especially for wastewater containing corrosive substances, timely emptying can prevent these substances from accumulating at the bottom of the tank body 100 for a long time, reducing damage to the structural materials. The provision of drain pipes allows operators to flexibly control the emptying process of each aeration tank 150 based on actual operational needs. For example, when a particular aeration tank 150 needs to be inspected and repaired, the liquid in that tank can be drained through the first drain pipe before maintenance operations can be performed. If the entire system needs to be cleaned or adjusted, the second drain pipe can be used for complete emptying.

[0052] Furthermore, in certain situations, such as abnormal influent water quality or a malfunction within aeration tank 150, the drain pipe can quickly drain wastewater and sediment, preventing system overload or further malfunction. This emergency response capability helps protect equipment in emergencies, reduces system downtime, and ensures stable operation of the water treatment process.

[0053] See Figure 1, a pair of the first side panels 120 and the second side panels 130 are wrapped by cross-staggered side panel reinforcement ribs 131. The top of the pool body 100 is surrounded by overflow side panels 191 and overflow bottom panels 192; the overflow side panels 191 and the overflow bottom panels 192 are arranged on the outer periphery of the pool body 100 to form an overflow trough 193; the overflow side panels 191 are extended upward to increase the depth of the overflow trough 193. The overflow trough 193 is provided with a number of third drain pipes 194; the third drain pipes 194 connect the overflow trough 193 with the outside to discharge the liquid in the overflow trough 193. The first side panels 120 and the second side panels 130 are wrapped by cross-staggered side panel reinforcement ribs 131, which can effectively enhance the structural strength and anti-deformation ability of the pool body 100. This design prevents deformation or uneven stress on the pool body 100 during long-term use due to water pressure, airflow, and the external environment, ensuring the structural stability and durability of the pool body 100. The wrapped reinforcement rib design also supports and secures the side panels, ensuring a tighter connection between the side panels, the bottom plate 110, and the partitions, preventing the pool body 100 from loosening due to vibration or impact during use.

[0054] See Figure 1 、 Figure 2 and Figure 3 By arranging overflow side plates 191 and overflow bottom plates 192 around the top of the tank body 100 to form an overflow trough 193, the overflow of the aeration filter during the sewage treatment process can be effectively managed. The overflow trough 193 can collect excess liquid caused by operational errors, excessive water flow or emergencies, and prevent these liquids from directly overflowing the outside of the tank body 100 and polluting the surrounding environment. The overflow side plates 191 extend upward, increasing the depth of the overflow trough 193 and improving the water storage capacity of the overflow trough 193. In this way, when a sudden large-scale overflow occurs, the overflow trough 193 can temporarily accommodate this excess water, slow down the impact of the overflow, gain processing time for the drainage system, and reduce the risk of the outside of the tank body 100 being affected by the overflow. Several third drain pipes 194 arranged in the overflow trough 193 are connected to the outside, and the excess water accumulated in the overflow trough 193 can be quickly discharged. This helps to maintain a stable water level in the overflow trough 193, prevents the overflow trough 193 from losing its function due to excessive water accumulation, and ensures that the overflow trough 193 can effectively accommodate excess liquid every time an overflow occurs.

[0055] The provision of the third drain pipe 194 also enables the accumulated water in the overflow trough 193 or pollutants brought in by overflow to be discharged in time, preventing the accumulated water in the overflow trough 193 from deteriorating or breeding microorganisms, thereby maintaining the cleanliness and operating efficiency of the entire device.

[0056] The overflow tank 193 design allows operators more time to adjust and address overflows during the water treatment process. This design enhances the system's operational flexibility and better protects the aeration filter and surrounding environment when responding to changes in influent flow or emergencies.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aeration filter device, characterized in that: The invention comprises a tank body (100) and an aeration assembly arranged inside the tank body (100); a bottom plate (110) is arranged at the bottom of the tank body (100); the bottom plate (110) is surrounded by a pair of first side plates (120) and a second side plate (130) and is sealed to form a cavity; the aeration assembly is arranged above the bottom plate (110); A first partition (141), a second partition (142) and a third partition (143) are provided inside the cavity; the second partition (142) and the third partition (143) are respectively provided on both sides of the first partition (141); the second partition (142) and the third partition (143) are both provided perpendicularly to the first partition (141); The first partition plate (141), the second partition plate (142) and the third partition plate (143) are all connected to the bottom plate (110), the first side plate (120) and the second side plate (130) of the tank body (100), so as to divide the tank body (100) into a plurality of separate aeration tanks (150); a set of aeration components is respectively provided at the bottom of each aeration tank (150); the aeration tanks (150) are each provided with a filter material layer (200), and liquid floats from the bottom of the aeration tank (150) through the filter material layer (200) to the top of the aeration tank (150).

2. An aeration filter device according to claim 1, characterized in that: A plurality of partition reinforcing ribs (144) are provided at the joints of the first partition (141), the second partition (142) and the third partition (143); the partition reinforcing ribs (144) connect the first partition (141), the second partition (142) and the first partition (141) and the third partition (143).

3. The aeration filter device according to claim 1, characterized in that: The aeration assembly comprises a flushing main pipe (161), a water inlet main pipe (162) and an aeration main pipe (163); the flushing main pipe (161), the water inlet main pipe (162) and the aeration main pipe (163) are respectively provided with a flushing branch pipe (164), a water inlet branch pipe (165) and an aeration branch pipe (166); the flushing main pipe (161), the water inlet main pipe (162) and the aeration main pipe (163) are respectively communicated with the flushing branch pipe (164), the water inlet branch pipe (165) and the aeration branch pipe (166).

4. An aeration filter device according to claim 3, characterized in that: The flushing main pipe (161), the water inlet main pipe (162), and the aeration main pipe (163) are supported by a first bracket (171); the flushing branch pipe (164), the water inlet branch pipe (165), and the aeration branch pipe (166) are supported by a second bracket (172); and the second bracket (172) is provided on both sides of the flushing branch pipe (164), the water inlet branch pipe (165), and the aeration branch pipe (166).

5. The aeration filter device according to claim 4, characterized in that: The first bracket (171) and the second bracket (172) are connected via a support plate (173); the flushing branch pipe (164), the water inlet branch pipe (165) and the aeration branch pipe (166) are all fixed to the support plate (173) via fixing ropes (174).

6. The aeration filter device according to claim 1, characterized in that: Inspection ports (180) corresponding to the number of the aeration tanks (150) are provided on the first side plate (120) and the second side plate (130) of the tank body (100); each inspection port (180) is connected to one of the aeration tanks (150); and the inspection ports (180) are closed or opened via flanges (181).

7. The aeration filter device according to claim 1, characterized in that: At least one first drain pipe is provided at the bottom of each aeration tank (150); a second drain pipe is also provided at the bottom of the cavity; and the second drain pipe connects each aeration tank (150).

8. The aeration filter device according to claim 1, characterized in that: A pair of the first side panels (120) and the second side panels (130) are both wrapped by cross-staggered side panel reinforcement ribs (131).

9. The aeration filter device according to claim 1, characterized in that: The top of the pool body (100) is surrounded by overflow side plates (191) and an overflow bottom plate (192); the overflow side plates (191) and the overflow bottom plate (192) are arranged on the outer periphery of the pool body (100) to form an overflow trough (193); the overflow side plates (191) are extended upward to increase the depth of the overflow trough (193).

10. The aeration filter device according to claim 9, characterized in that: The overflow trough (193) is provided with a plurality of third drain pipes (194); the third drain pipes (194) connect the overflow trough (193) with the outside to discharge the liquid in the overflow trough (193).

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