A new type of aquaculture filter

Abstract

The utility model relates to the technical field of aquaculture, and disclose a novel aquaculture filter, including filter main part, and set up the support frame at filter main part bottom, and the both ends of filter main part are equipped with detachable installation lid respectively, the inside of filter main part is equipped with sterilization box and filter box respectively, and the inside communication of sterilization box and filter box, the inside of sterilization box is equipped with sterilization mechanism, and one end of sterilization box is equipped with drain pipe, the inner wall of filter box is equipped with different filter screen of double -deck specification, and one end of filter box is installed nanometer grade filter layer, the bottom of filter box is installed blowoff pipe, and one end of blowoff pipe penetrates the inner wall of filter main part. Possess multistage high accuracy filtration, intelligent response type disinfection function, integrated efficient self -cleaning advantage.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically a novel aquaculture filter. Background Technology

[0002] With the intensive development of aquaculture and the continuous increase in stocking density, uneaten feed, fish excrement, and harmful microorganisms accumulate in the aquaculture water, easily leading to water quality deterioration, disease outbreaks, and severely impacting aquaculture efficiency. Traditional aquaculture filters mostly employ simple physical filtration methods, such as single-stage filter screens. These filters can only remove large suspended particles in the water, with limited filtration precision, and cannot effectively remove fine impurities, organic matter, and pathogenic microorganisms. Furthermore, the filter screens of traditional filters are prone to clogging during operation, requiring frequent shutdowns for manual cleaning or replacement. This is not only cumbersome and costly to maintain, but also may lead to decreased filtration efficiency due to untimely cleaning, affecting the water treatment effect.

[0003] To address these issues, some composite filters combining physical filtration and chemical disinfection have emerged in existing technologies. However, these devices are often complex in structure, and the addition of disinfectant typically relies on external power or timed control devices. They cannot achieve intelligent and automated precise dosing based on the actual pollution level or water level changes, easily leading to disinfectant waste or poor disinfection effects. Furthermore, the automatic cleaning function within the filters is relatively weak, especially for multi-layered filters of different sizes, lacking efficient and synchronized cleaning methods. Even after long-term operation, they still face the problems of incomplete cleaning and inconvenient maintenance.

[0004] Therefore, there is an urgent need to design a new type of aquaculture filter that can not only achieve multi-stage, high-precision physical filtration, but also integrate an intelligent disinfection mechanism that can respond to water level changes and automatically release disinfectant, and be equipped with an efficient and automated filter cleaning system. This will significantly improve water purification effect and equipment operation stability while reducing the intensity of manual maintenance. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a novel aquaculture filter that features multi-stage high-precision filtration, intelligent responsive disinfection, and integrated high-efficiency self-cleaning. It solves the problems of traditional filters, which suffer from single filtration methods, insufficient precision, and difficulty in effectively removing fine impurities and harmful substances from the water, resulting in incomplete water purification. Furthermore, existing composite filters employ mechanical and rigid disinfectant dosing methods that cannot automatically adjust according to actual water treatment volume or pollution load, leading to unstable disinfection effects or waste of chemical agents. The filter screens are also prone to clogging, and the lack of efficient and automated cleaning methods, relying primarily on manual downtime cleaning, results in inconvenient equipment maintenance, poor operational continuity, and high overall operating costs.

[0006] (II) Technical Solution To achieve the aforementioned multi-stage high-precision filtration, intelligent responsive disinfection function, and integrated high-efficiency self-cleaning, this utility model provides the following technical solution: A novel aquaculture filter, comprising a filter body and a support frame disposed at the bottom of the filter body, wherein both ends of the filter body are respectively provided with detachable mounting covers, the filter body is provided with a disinfection box and a filter box respectively, and the interiors of the disinfection box and the filter box are connected, the disinfection box is provided with a disinfection mechanism, and one end of the disinfection box is provided with a drain pipe, the inner wall of the filter box is provided with a double layer of filter screens of different specifications, and one end of the filter box is installed with a nano-level filter layer, and the bottom of the filter box is provided with a sewage pipe, one end of which penetrates the inner wall of the filter body.

[0007] Preferably, a cleaning disc is provided on both sides of the filter screen, and a connecting shaft is installed between the cleaning discs. Two cleaning brushes are installed on the outer side of the cleaning discs, and the cleaning surface of the cleaning brushes is set on one side of the filter screen.

[0008] Preferably, a placement box is installed on the upper side of the filter box, and the interior of the placement box is connected to the interior of the filter body. A motor is installed inside the placement box, and a drive wheel is installed at the output end of the motor. A drive belt is installed on the outer side of the drive wheel, and one end of the drive belt passes through the inner wall of the filter box and is connected to the outer side of the connecting shaft.

[0009] Preferably, the disinfection mechanism includes a support plate installed at the bottom of the disinfection box, and limit rails are respectively installed on both sides of the upper end of the support plate. The limit rails are provided with soft balls inside, and disinfection powder is provided inside the soft balls. The soft balls are located at the top of the limit rails, and the limit rails are provided with grooves around their perimeter.

[0010] Preferably, the bottom of the limiting track is provided with a float ball, and the float ball is located inside the limiting track. A lifting plate that is slidably connected to the inner wall of the limiting track is installed on the upper side of the float ball, and a spike for piercing the soft ball is fixedly installed on the upper side of the lifting plate, and the spike is located directly below the soft ball.

[0011] Preferably, the mounting cover at one end of the filter body is provided with a water inlet, and the water inlet is connected to the inside of the filter box. The output ends of the drain pipe and the sewage pipe are respectively equipped with corresponding valves.

[0012] (III) Beneficial Effects Compared with existing technologies, this utility model provides a novel aquaculture filter with the following beneficial effects: This novel aquaculture filter, by setting up two layers of filter screens of different specifications and combining them with a nano-level filter layer, forms a gradient filtration system from coarse to fine filtration. This system can effectively intercept and remove particulate impurities, organic suspended solids, and even some microorganisms of different particle sizes in the water, ultimately significantly improving the quality of the effluent and providing a cleaner and safer water environment for aquaculture. The innovative disinfection mechanism, through the linkage design of the float, lifting plate, and cone, automatically links the release of disinfectant powder with the water level in the disinfection tank (i.e., the water treatment requirements). When the water level rises to a certain level, the float drives the cone to move upward and puncture the soft ball storing the disinfectant powder, achieving automatic and precise addition of disinfectant. This process requires no external power or complex control, responds promptly, ensures disinfection effectiveness, avoids ineffective waste or over-addition of disinfectant, and reduces operating costs. Driven by a motor, the cleaning disc and brushes rotate, simultaneously and automatically washing the surface of the double-layer filter screen. This effectively removes and strips away dirt adhering to the screen, preventing clogging. This design significantly reduces the frequency and labor intensity of manual cleaning, ensuring long-term stable operation of the filter and maintaining high filtration throughput and efficiency. The filter box, disinfection box, self-cleaning drive device (placed inside the box), and drain pipes are integrated into a single filter unit, with a removable cover for convenient assembly and internal maintenance. The overall equipment has a rational structural layout and comprehensive functions, meeting the needs of high-efficiency water treatment while facilitating production, installation, and daily maintenance, thus possessing high market application value. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present utility model; Figure 2 This is a cross-sectional view of the present invention. Figure 3 This is a cross-sectional view of the filter box of this utility model; Figure 4 This is a structural diagram of the disinfection mechanism of this utility model.

[0014] In the diagram: 1. Filter body; 2. Support frame; 3. Mounting cover; 4. Placement box; 5. Inlet; 6. Drain pipe; 7. Valve; 8. Disinfection box; 9. Filter box; 10. Motor; 11. Nanoscale filter layer; 12. Disinfection mechanism; 121. Support plate; 122. Limiting track; 123. Soft ball; 124. Cone spike; 125. Lifting plate; 126. Float ball; 13. Cleaning tray; 14. Drain pipe; 15. Cleaning brush; 16. Filter screen; 17. Transmission belt; 18. Transmission wheel; 19. Connecting shaft. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Please refer to Figure 1-4 A novel aquaculture filter includes a filter body 1 and a support frame 2 located at the bottom of the filter body 1. The filter body 1 has detachable mounting covers 3 at both ends. The filter body 1 has a disinfection box 8 and a filter box 9 inside, and the interiors of the disinfection box 8 and the filter box 9 are connected. The disinfection box 8 has a disinfection mechanism 12 inside, and a drain pipe 14 is provided at one end of the disinfection box 8. The inner wall of the filter box 9 has double-layer filter screens 16 of different specifications, and a nano-level filter layer 11 is installed at one end of the filter box 9. A sewage pipe 6 is installed at the bottom of the filter box 9, and one end of the sewage pipe 6 penetrates the inner wall of the filter body 1.

[0017] The filter body 1 serves as the carrier and outer shell of the entire equipment. Its bottom support frame 2 provides stable support for the entire device, adapting to different installation environments such as pond edges or equipment platforms. The removable mounting covers 3 at both ends of the filter body 1 greatly facilitate installation, inspection, and maintenance. The filter body 1 is internally divided into two key functional compartments: a disinfection tank 8 and a filter tank 9, which are interconnected, forming the basis of a water treatment process that follows either physical filtration followed by chemical disinfection or, conversely, the flow direction. The disinfection tank 8 contains a core disinfection mechanism 12, used to sterilize and disinfect the flowing water. Its end has a drain pipe 14 for discharging purified water. The filter tank 9 performs the core physical filtration function. Its inner wall features a double-layer filter screen 16, typically designed as a combination of a first coarse filter (for intercepting hair and large particles of uneaten feed) and a second fine filter (for intercepting fine suspended matter) to achieve gradient filtration. The nano-level filter layer 11 at one end of the filter box 9 can further trap micron-sized and even nano-sized particles, colloids, and some bacteria, significantly improving the quality of the effluent. The drain pipe 6 installed at the bottom of the filter box 9 is used to periodically discharge the high-concentration dirt that is intercepted and deposited during the filtration process. Its design, which runs through the filter body 1, allows the draining operation to be carried out directly outside the equipment.

[0018] The filter screen 16 is provided with cleaning discs 13 on both sides, and a connecting shaft 19 is installed between the cleaning discs 13. Two cleaning brushes 15 are installed on the outer side of the cleaning discs 13, and the cleaning surface of the cleaning brushes 15 is set on one side of the filter screen 16.

[0019] Cleaning discs 13 are arranged in pairs on both sides of the double-layer filter screen 16, connected in series via a connecting shaft 19 to form a synchronously rotating cleaning module. Two cleaning brushes 15 are mounted on the outer side of each cleaning disc 13, their bristles directly contacting the mesh surface of the filter screen 16. When the cleaning disc 13 is driven to rotate, the cleaning brushes 15 rotate accordingly, scraping and cleaning the dirt adhering to the water-facing or water-repellent side of the filter screen 16, preventing mesh clogging and maintaining filtration efficiency. This design achieves efficient and synchronous mechanical self-cleaning for multi-layer filters.

[0020] A placement box 4 is installed on the upper side of the filter box 9, and the interior of the placement box 4 is connected to the interior of the filter body 1. A motor 10 is installed inside the placement box 4, and a transmission wheel 18 is installed at the output end of the motor 10. A transmission belt 17 is installed on the outer side of the transmission wheel 18, and one end of the transmission belt 17 passes through the inner wall of the filter box 9, and its interior is connected to the outer side of the connecting shaft 19.

[0021] The placement box 4 is installed on the upper side of the filter box 9 and communicates with the interior of the filter body 1, providing a relatively independent and waterproof installation space for the motor 10. The motor 10 serves as the drive source, and its output shaft transmission wheel 18 transmits power to the connecting shaft 19 located inside the filter box 9 via a transmission belt 17. The portion of the transmission belt 17 that penetrates the wall of the filter box 9 must be sealed to prevent water leakage. This design places the drive motor 10 outside the potential splash area, improving electrical safety, and achieves reliable power transmission through belt drive, resulting in a compact structure.

[0022] The disinfection mechanism 12 includes a support plate 121 installed at the bottom of the disinfection box 8, and limit rails 122 are installed on both sides of the upper end of the support plate 121. The limit rails 122 are equipped with soft balls 123 inside, and disinfection powder is inside the soft balls 123. The soft balls 123 are located at the top inside the limit rails 122, and the limit rails 122 are provided with grooves around their perimeter.

[0023] The support plate 121 is fixed to the bottom of the disinfection tank 8, serving as the mounting base for the entire mechanism. Two limiting rails 122 on the plate guide and limit the movement trajectory of the internal components. A soft ball 123, pre-filled with solid disinfectant powder (such as chlorine dioxide slow-release agent, potassium persulfate compound salt, etc.), is placed at the top of the limiting rail 122. The slots around the limiting rail 122 allow water flow within the disinfection tank 8 to contact the soft ball 123, and after the soft ball 123 is punctured, the disinfectant powder can quickly dissolve and diffuse into the water.

[0024] The bottom of the limiting track 122 is provided with a float 126, and the float 126 is located inside the limiting track 122. A lifting plate 125 that is slidably connected to the inner wall of the limiting track 122 is installed on the upper side of the float 126, and a cone 124 for piercing the soft ball 123 is fixedly installed on the upper side of the lifting plate 125, and the cone 124 is located directly below the soft ball 123.

[0025] A float 126, with a density less than water, is placed at the bottom of the limiting track 122 and can float freely as the water level in the disinfection tank 8 rises and falls. A lifting plate 125 is connected to the float 126, and its edge slides against the inner wall of the limiting track 122, ensuring that it can only move vertically. A cone 124, fixed to the upper side of the lifting plate 125, has its tip pointing upwards and aligned with the soft ball 123. Its core working principle is as follows: when the water level in the disinfection tank 8 rises due to water intake, the float 126 is pushed upwards by buoyancy, causing the lifting plate 125 and the cone 124 to move upwards along the limiting track 122. When the water level reaches a preset height (i.e., the float 126 rises to the corresponding position), the cone 124 precisely punctures the soft ball 123 above, releasing the stored disinfectant powder into the water, thus achieving automatic and quantitative disinfectant dosing based on the water level signal.

[0026] The mounting cover 3 at one end of the filter body 1 has an inlet 5 inside, and the inlet 5 is connected to the inside of the filter box 9. The output ends of the drain pipe 14 and the sewage pipe 6 are respectively equipped with corresponding valves 7.

[0027] The inlet 5 is located on the mounting cover 3 at one end of the filter body 1 and is connected to the filter box 9, clearly indicating the inlet of the raw water to be treated. Valves 7 are installed at the output ends of both the drain pipe 14 (clean water outlet) and the sewage pipe 6 (concentrated wastewater outlet). By operating these valves 7, the equipment's water output, sewage discharge, and internal process switching (such as backwashing) can be controlled, making the equipment flexible to operate and easy to manage.

[0028] Working principle: Water intake and primary filtration: The aquaculture water to be treated enters the filter box 9 inside the filter body 1 through the water inlet 5. The water first passes through a double-layer filter screen 16. Larger particles are intercepted by the first coarse filter screen, while finer suspended solids are retained by the second fine filter screen, achieving primary physical purification.

[0029] Fine filtration and debris collection: After initial purification by the double-layer filter 16, the water continues to pass through the nano-level filter layer 11, where residual microparticles and colloids are further removed, resulting in a significant improvement in water quality. Throughout the filtration process, debris intercepted by each filter layer gradually settles at the bottom of the filter box 9 under the influence of gravity.

[0030] Automatic cleaning process: During filtration or periodically, motor 10 drives connecting shaft 19 to rotate via transmission wheel 18 and transmission belt 17, thereby causing the cleaning discs 13 on both sides and the cleaning brushes 15 mounted on them to rotate synchronously. The rotating cleaning brushes 15 automatically scrub the surface of the double-layer filter screen 16, scraping off attached dirt and causing it to fall to the bottom of the box, effectively preventing filter clogging. This process can be controlled by a timer or started manually.

[0031] Intelligent disinfection process: Filtered water flows into (or, depending on the design, raw water may first enter the disinfection tank) the disinfection tank 8, which is connected to the filter tank 9. As the water level in the disinfection tank 8 rises, the float 126 rises due to buoyancy, pushing the cone 124 upwards via the lifting plate 125. When the water level reaches the set value, the cone 124 punctures the soft ball 123 located above it, and the safe disinfectant powder encapsulated inside the soft ball 123 quickly dissolves in the water, sterilizing and disinfecting the water in the tank. The rise in water level directly triggers the disinfection action, realizing automatic, on-demand disinfection without the need for external power control.

[0032] Water discharge, wastewater discharge, and maintenance: The disinfected clean water is discharged through drain pipe 14 and reused in the aquaculture pond. Valve 7 on drain pipe 14 is used to control the water discharge. The dirt accumulated at the bottom of filter box 9 can be periodically discharged by opening valve 7 on wastewater pipe 6. The removable mounting covers 3 at both ends of the equipment can be opened when needed to inspect, replace, or thoroughly clean all internal components, such as filter screen 16, nano-filtration layer 11, cleaning brush 15, disinfection mechanism 12, etc.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel aquaculture filter, comprising a filter body (1) and a support frame (2) disposed at the bottom of the filter body (1), wherein the filter body (1) is provided with detachable mounting covers (3) at both ends, characterized in that: The filter body (1) is equipped with a disinfection box (8) and a filter box (9) inside, and the interiors of the disinfection box (8) and the filter box (9) are connected. The disinfection box (8) is equipped with a disinfection mechanism (12) inside, and a drain pipe (14) is provided at one end of the disinfection box (8). The inner wall of the filter box (9) is equipped with a double-layer filter screen (16) of different specifications, and a nano-level filter layer (11) is installed at one end of the filter box (9). A sewage pipe (6) is installed at the bottom of the filter box (9), and one end of the sewage pipe (6) penetrates the inner wall of the filter body (1).

2. The novel aquaculture filter according to claim 1, characterized in that: The filter screen (16) is provided with cleaning discs (13) on both sides, and a connecting shaft (19) is installed between the cleaning discs (13). Two cleaning brushes (15) are installed on the outside of the cleaning discs (13), and the cleaning surface of the cleaning brushes (15) is set on one side of the filter screen (16).

3. The novel aquaculture filter according to claim 2, characterized in that: The filter box (9) is equipped with a placement box (4) on its upper side, and the interior of the placement box (4) is connected to the interior of the filter body (1). The placement box (4) is equipped with a motor (10), and the output end of the motor (10) is equipped with a transmission wheel (18). The transmission wheel (18) is equipped with a transmission belt (17) on its outer side, and one end of the transmission belt (17) passes through the inner wall of the filter box (9), and its interior is connected to the outer side of the connecting shaft (19).

4. The novel aquaculture filter according to claim 1, characterized in that: The disinfection mechanism (12) includes a support plate (121) installed at the bottom of the disinfection box (8), and limit rails (122) are installed on both sides of the upper end of the support plate (121). The limit rails (122) are equipped with soft balls (123) inside, and disinfection powder is installed inside the soft balls (123). The soft balls (123) are located at the top inside the limit rails (122), and the limit rails (122) are provided with grooves around their perimeter.

5. A novel aquaculture filter according to claim 4, characterized in that: The bottom of the limiting track (122) is provided with a float (126), and the float (126) is located inside the limiting track (122). The upper side of the float (126) is equipped with a lifting plate (125) that is slidably connected to the inner wall of the limiting track (122). The upper side of the lifting plate (125) is fixedly equipped with a cone (124) for piercing the soft ball (123), and the cone (124) is located directly below the soft ball (123).

6. A novel aquaculture filter according to claim 1, characterized in that: The installation cover (3) at one end of the filter body (1) is provided with an inlet (5), and the inlet (5) is connected to the inside of the filter box (9). The output ends of the drain pipe (14) and the sewage pipe (6) are respectively equipped with corresponding valves (7).

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