Microcirculation biological filter structure for fish culture water body

Abstract

The utility model discloses a microcirculation biological filter structure for a fish culture water body. The microcirculation biological filter structure comprises a main barrel body, a filter head, an inner barrel, an aeration pipe, a water inlet pipe, a water outlet pipe and a blow-off pipe, the aerator pipe is arranged in the main barrel body and close to the bottom, the inner barrel is arranged in the aerator pipe and close to the top, and the filter heads are distributed on a bottom plate at the bottom of the inner barrel; a water inlet, a drain outlet and a water outlet are formed in the main barrel body, one end of the water inlet pipe is arranged in the main barrel body, and the other end of the water inlet pipe is connected with the water inlet; one end of the blow-off pipe is arranged in the main barrel body, and the other end of the blow-off pipe penetrates through the drain outlet and is arranged outside the main barrel body; one end of the water outlet pipe is arranged in the inner barrel, and the other end of the water outlet pipe penetrates through the water outlet and is arranged outside the main barrel body.

Description

Technical Field

[0001] This utility model relates to the field of filtration structure technology, and in particular to a micro-circulation biological filter structure for fish farming water. Background Technology

[0002] In aquaculture, water quality management in fishponds is crucial for ensuring the healthy growth of fish. Traditional fishpond wastewater treatment methods mainly include simple sedimentation, filtration, or chemical treatment. However, these methods have many limitations. For example, traditional filtration systems have low filtration efficiency and cannot meet the needs of high-frequency water circulation; chemical treatment methods may negatively impact the fishpond's ecological environment and even harm the health of fish. In recent years, biofilter technology has been increasingly applied to water treatment, with aerated biofilters considered a more advanced technology. However, existing fishpond wastewater treatment technologies still have the following problems:

[0003] 1. Traditional filtration systems cannot effectively remove suspended solids and organic matter from water, leading to water quality deterioration;

[0004] 2. Chemical treatment methods may introduce harmful substances and disrupt the ecological balance of the fishpond;

[0005] 3. Existing biological filter technology and equipment are complex and have high maintenance costs, making it difficult to promote in small fish ponds.

[0006] To address the problems in related technologies, this utility model provides a micro-circulation biological filter structure for fish farming water. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a micro-circulation biological filter structure for fish farming water bodies.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A micro-circulation biological filter structure for fish farming water includes a main tank, a filter head, an inner cylinder, an aeration pipe, an inlet pipe, an outlet pipe, and a sewage pipe.

[0010] The aeration pipe is located near the bottom of the main tank, and the inner cylinder is located near the top of the aeration pipe. The filter heads are distributed on the bottom plate of the inner cylinder. The main tank has an inlet, a drain outlet, and an outlet. One end of the inlet pipe is located inside the main tank, and the other end is connected to the inlet. One end of the drain pipe is located inside the main tank, and the other end passes through the drain outlet and is located outside the main tank. One end of the outlet pipe is located inside the inner cylinder, and the other end passes through the outlet and is located outside the main tank.

[0011] Furthermore, EPS filter media is also filled below the filter head.

[0012] Furthermore, an inlet butterfly valve is also installed on the inlet.

[0013] Furthermore, a drain butterfly valve is also installed on the drain outlet.

[0014] Furthermore, the water inlet is located on the main body below the filter head, the drain outlet is located on the main body below the water inlet, and the water outlet is located at the position where the inner cylinder and the main body are in contact.

[0015] Furthermore, the main barrel body is made of PP and PVC materials.

[0016] Furthermore, the number of filter heads is 65.

[0017] Furthermore, both the inlet butterfly valve and the drain butterfly valve are DN100 pneumatic butterfly valves.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. High-efficiency filtration: With 65 filter heads and EPS filter media, it can achieve a filtration speed of 14 cubic meters per hour, meeting the needs of high-frequency water circulation filtration.

[0020] 2. Economical and practical: The use of simple structural design and economical materials (such as PP and PVC composite materials) reduces equipment costs and operation and maintenance costs.

[0021] 3. Environmentally friendly: No chemical agents are required, avoiding negative impacts on the fishpond's ecological environment.

[0022] 4. Easy to maintain: The backwashing function of the aeration pipe can effectively prevent filter media from clogging, extend the service life of the filter media, and reduce maintenance workload. Attached Figure Description

[0023] Figure 1 This is a structural diagram of a micro-circulation biological filter for fish farming provided in Example 1;

[0024] Figure 2 This is a structural diagram of the microcirculation biofilter provided in Example 1;

[0025] Figure 3 This is an exploded view of the microcirculation biofilter structure provided in Example 1;

[0026] Figure 4 This is a cross-sectional view of the microcirculation biofilter structure provided in Example 1;

[0027] Figure 5 This is a structural diagram of the main barrel provided in Embodiment 1;

[0028] Figure 6 This is a sectional view of the main barrel provided in Embodiment 1;

[0029] Figure 7 This is a diagram of the inner cylinder structure provided in Embodiment 1;

[0030] Figure 8 This is a diagram of the inner cylinder structure provided in Embodiment 1;

[0031] The components are as follows: 1. Main tank body; 11. Inlet; 12. Outlet; 13. Drain outlet; 2. Filter head; 3. Inner cylinder; 4. Aeration pipe; 5. Inlet pipe; 6. Outlet pipe; 7. Drain pipe; 8. EPS filter media; 9. Inlet butterfly valve; 10. Drain butterfly valve. Detailed Implementation

[0032] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0033] The purpose of this invention is to address the shortcomings of existing technologies by providing a micro-circulation biological filter structure for fish farming water bodies.

[0034] Example 1

[0035] This embodiment provides a micro-circulation biological filter structure for fish farming water, such as... Figure 1-4 As shown, it includes a main barrel 1, a filter head 2, an inner cylinder 3, an aeration pipe 4, a water inlet pipe 5, a water outlet pipe 6, a sewage discharge pipe 7, and EPS filter media 8.

[0036] like Figure 5-6 As shown, the main tank 1 is a one-piece structure consisting of an upper cylindrical part and a lower conical part, made of composite PP and PVC materials to ensure its stability and durability during long-term use; its diameter is 1.32 meters and its height is 1.75 meters. The main tank 1 serves as the main body of the entire filter tank, supporting the installation and operation of other components. It also accommodates the EPS filter media 8 and wastewater, thus providing filtration space. During use, the main tank 1 is installed at the wastewater outlet on the side of the fishpond.

[0037] EPS filter media 8 is filled into the main tank 1 with a filling height of 400mm. EPS filter media 8 has good filtration performance and biological adhesion, and can effectively filter suspended solids and organic matter in sewage.

[0038] The aeration pipe 4 is a near-circular structure composed of multiple tubular structures. Its diameter is similar to the diameter of the main tank 1 near the bottom. It can be installed inside the bottom of the cylindrical main tank 1, close to the EPS filter media 8. The aeration pipe 4 is used to provide backwashing function, prevent filter media clogging, and ensure filtration efficiency.

[0039] like Figure 7-8 As shown, the inner cylinder 3 is a cylindrical structure with an open top and a hollow interior. The diameter of the inner cylinder is 1.3 meters, and its height can be set according to actual needs. It can support 65 filter heads 2. The inner cylinder 3 is installed inside the cylindrical main body 1 near the top, above the EPS filter media 8. The bottom plate of the inner cylinder 3 has mounting openings adapted to the filter heads 2. Multiple partitions are also installed inside the inner cylinder 3, each with multiple through holes. The inner cylinder 3 can isolate wastewater from clean water, preventing the EPS filter media 8 from overflowing.

[0040] The filter head 2 is cylindrical, and in this embodiment, a total of 65 filter heads 2 are provided. One end of each filter head 2 is evenly distributed on the bottom plate of the inner cylinder 3 through the installation port. The filter heads 2 are used to filter suspended solids and organic matter in sewage, ensuring that the filtered water can be discharged evenly, and the filtration speed can reach 14 cubic meters per hour.

[0041] The main tank 1 is also provided with an inlet 11, an outlet 12, and a drain outlet 13 on its side wall.

[0042] The inlet 11 is located on the side wall of the main barrel 1 below the filter head 2; the drain outlet 13 is located on the side wall of the main barrel 1 below the inlet 11; the outlet 12 is located on the side wall corresponding to the inner cylinder 3 and the main barrel 1, that is, both the inner cylinder 3 and the main barrel 1 are provided with outlets 12.

[0043] The inlet pipe 5 is a tubular structure. One end of the inlet pipe 5 is located inside the main tank 1 and can extend to the bottom of the aeration pipe 4. The other end of the inlet pipe 5 is fixedly connected to one side of the inlet 11. An inlet butterfly valve 9 is fixedly installed on the other side of the inlet 11. The other side of the inlet 11 can also be connected to the sewage outlet of the fish pond side, thereby introducing the sewage from the fish pond side into the main tank 1. The inlet butterfly valve 9 can also control the sewage entering the main tank 1.

[0044] The drain pipe 7 is a tubular structure. One end of the drain pipe 7 is located near the bottom of the conical shape of the main tank 1, and the other end of the drain pipe 7 passes through the drain port 13 and is located outside the main tank 1. A drain butterfly valve 10 is also installed at the connection between the drain pipe 7 and the drain port 13. The drain pipe 7 is used to discharge the sewage after backwashing, and the drain butterfly valve 10 controls the drain pipe 7 to discharge the sewage after backwashing periodically.

[0045] The water outlet pipe 6 is a tubular structure. One end of the water outlet pipe 6 is located inside the inner cylinder 3, and the other end of the water outlet pipe 6 passes through the water outlet 12 and is located outside the main tank 1. The water outlet pipe 6 discharges the filtered water out of the filter tank and returns it to the fish pond.

[0046] Both the inlet butterfly valve 9 and the drain butterfly valve 10 are DN100 pneumatic butterfly valves used to control the opening and closing of the inlet pipe 5 and the drain pipe 7.

[0047] This embodiment also includes an external control system, which is used to control the operation of the filter, including aeration time and aeration frequency. It can adjust the operating parameters according to the water quality and quantity of the fish pond to ensure the filtration effect. The control system can be installed inside the main tank or outside the main tank. The specific installation location can be set according to the actual situation. This embodiment does not make specific limitations. Its main purpose is to control the operation of the filter.

[0048] It should be noted that the control system can be an existing system, and this embodiment does not impose any restrictions.

[0049] The usage of a micro-circulation biological filter structure for fish farming water in this embodiment is as follows:

[0050] Wastewater from the side of the fish pond enters the main tank 1 through inlet 11 and inlet pipe 5. The wastewater first enters the bottom of the main tank 1 and comes into contact with the EPS filter media 8 filled at the bottom. The wastewater passes through the EPS filter media 8, which removes suspended solids and organic matter through physical filtration and biological adhesion. The filtered water enters the clear water area of ​​the inner cylinder 3 through 65 filter heads 2 evenly distributed on the bottom plate of the inner cylinder 3. The filtered clear water is buffered in the inner cylinder 3 and then returns to the fish pond through outlet pipe 6 and outlet 12 set in the inner cylinder 3, completing the water circulation filtration.

[0051] During the backwashing process, the aeration pipe 4 periodically aerates the EPS filter media 8, generating airflow that impacts the filter media and removes impurities from its surface. The drain butterfly valve 7 opens, discharging the impurities and wastewater generated during the backwashing process through the drain pipe 10 into the main tank 1, ensuring the cleanliness of the filter media and the filtration efficiency.

[0052] The control system automatically adjusts operating parameters such as aeration time and frequency according to the water quality and quantity of the fish pond to ensure filtration effect and equipment operation stability.

[0053] Through the above process, this embodiment demonstrates that the micro-circulation biological filter can effectively remove suspended solids and organic matter from sewage, improve the water quality of fish ponds, and operate stably and is easy to maintain.

[0054] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A micro-circulating biological filter structure for fish aquaculture, characterized in that, Includes main tank, filter head, inner cylinder, aeration pipe, water inlet pipe, water outlet pipe, and sewage discharge pipe; The aeration pipe is located near the bottom of the main tank, and the inner cylinder is located near the top of the aeration pipe. The filter heads are distributed on the bottom plate of the inner cylinder. The main tank has an inlet, a drain outlet, and an outlet. One end of the inlet pipe is located inside the main tank, and the other end is connected to the inlet. One end of the drain pipe is located inside the main tank, and the other end passes through the drain outlet and is located outside the main tank. One end of the outlet pipe is located inside the inner cylinder, and the other end passes through the outlet and is located outside the main tank.

2. The micro-circulation biological filter structure for fish aquaculture as described in claim 1, characterized in that, EPS filter media is also filled below the filter head.

3. The micro-circulation biological filter structure for fish aquaculture according to claim 1, characterized in that, A water inlet butterfly valve is also installed on the water inlet.

4. The micro-circulation biological filter structure for fish aquaculture according to claim 3, characterized in that, A drain butterfly valve is also installed on the drain outlet.

5. The micro-circulation biological filter structure for fish aquaculture according to claim 1, characterized in that, The water inlet is located on the main body below the filter head, the drain outlet is located on the main body below the water inlet, and the water outlet is located at the position where the inner cylinder and the main body are in contact.

6. The structure of a micro-circulating biological filter for fish farming water as described in claim 1, characterized in that, The main barrel body is made of PP and PVC materials.

7. The structure of a micro-circulating biological filter for fish farming water as described in claim 1, characterized in that, The number of filter heads is 65.

8. The micro-circulation biological filter structure for fish aquaculture according to claim 4, characterized in that, Both the inlet butterfly valve and the drain butterfly valve are DN100 pneumatic butterfly valves.

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