Fish pond water quality improvement medium based on fishery application and throwing mechanism

Abstract

This invention discloses a fishpond water quality improvement medium and application mechanism based on aquaculture technology. It includes a porous adsorption matrix and composite functional components loaded on the porous adsorption matrix. The porous adsorption matrix is ​​made of natural mineral materials, biochar materials, or their composite materials, with a porosity of 40%-80% and a pore size distribution of 10μm-500μm. The pores are interconnected to form a three-dimensional network channel for adsorbing ammonia nitrogen, nitrite, and organic pollutants in fishpond water. This invention employs a three-in-one composite purification mechanism of "porous adsorption-biofilm colonization-slow-release nutrition," using natural mineral materials or biochar materials as the porous adsorption matrix. Utilizing their high porosity of 40%-80% and interconnected pore size network of 10μm-500μm, it can achieve rapid physical adsorption of ammonia nitrogen, nitrite, and organic pollutants in water. This fundamentally replaces the potential pollution risks of chemical agents and avoids water waste and the introduction of external pollution during water exchange.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a fishpond water quality improvement medium and application mechanism for aquaculture applications. Background Technology

[0002] Aquaculture is an important part of my country's agricultural economy. With the promotion of intensive aquaculture models, the problem of deteriorating fishpond water quality has become increasingly prominent. During the aquaculture process, the accumulation of uneaten feed, feces, and metabolic products leads to an increase in the concentration of harmful substances such as ammonia nitrogen, nitrite, and hydrogen sulfide in the water, a decrease in dissolved oxygen content, and abnormal algae growth. This not only inhibits fish growth and development but also easily triggers various diseases, resulting in aquaculture losses.

[0003] Currently, improving fishpond water quality mainly relies on traditional methods such as chemical spraying, water exchange and wastewater discharge, and aeration with aerators. While chemical agents are effective quickly, they easily leave drug residues, affecting the safety of aquatic products. Frequent water exchanges not only waste water resources but may also introduce external pollution. Aerators can only alleviate hypoxia symptoms and cannot fundamentally degrade organic pollutants. Furthermore, the application of existing water quality improvement media largely depends on manual experience, leading to problems such as arbitrary placement, uneven dosage, and high labor intensity, making precise control difficult. More importantly, existing application equipment cannot mix and stir the added water quality improvement media, resulting in uneven dispersion and low dissolution efficiency. Moreover, the mixing process cannot automatically discharge multiple water purification carriers, making it difficult to achieve synergistic proportioning and continuous supply of composite media. For large-scale aquaculture areas, manual application is inefficient and costly, failing to meet the needs of modern intelligent fisheries for large-scale and standardized management.

[0004] Therefore, there is an urgent need to develop a new type of fishpond water quality improvement system that combines efficient purification with precise feeding, automatic mixing, and automatic discharge capabilities, in order to achieve ecological regulation and sustainable utilization of aquaculture water. Summary of the Invention

[0005] The purpose of this invention is to provide a fishpond water quality improvement medium and dispensing mechanism for fishery applications, which solves the problems of existing fishpond water quality improvement methods, such as the risk of chemical residues, waste of resources and easy introduction of external pollution during water exchange, the inability of aerators to degrade organic pollutants, arbitrary placement and uneven dosage of manual dispensing, uneven dispersion due to the inability of equipment to mix and stir the water quality improvement medium, and the inability to automatically discharge multiple water purification carriers during the stirring process, making it difficult to achieve synergistic proportioning and continuous supply.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fishpond water quality improvement medium for fishery applications, comprising a porous adsorption matrix and composite functional components loaded on the porous adsorption matrix. The porous adsorption matrix is ​​a natural mineral material, biochar material, or a composite material thereof, with a porosity of 40%-80% and a pore size distribution of 10μm-500μm. The pores are interconnected to form a three-dimensional network channel, which is used to adsorb ammonia nitrogen, nitrite, and organic pollutants in fishpond water. The composite functional components include beneficial microbial flora and slow-release nutrient components. The beneficial microbial flora includes nitrifying bacteria, denitrifying bacteria and functional bacteria that decompose organic matter, which are used to biodegrade water pollutants and maintain the ecological balance of water bodies. The beneficial microbial flora colonize the pore surface of the porous adsorption matrix to form a biofilm. The slow-release nutrient component includes a carbon source, a nitrogen source, and trace elements embedded in a biodegradable polymer; the slow-release nutrient component releases nutrients through the gradual degradation of the biodegradable polymer, and its release rate is designed to adapt to the metabolic needs of the beneficial microbial community.

[0007] A delivery mechanism for fishery applications includes a float, a power supply compartment installed at one end of the float, a media delivery assembly connected to the middle of the float, a mixing reaction tank, a sealing tank cover at the top of the mixing reaction tank, a protective cover connected to the top of the sealing tank cover, a drive motor installed at the top of the protective cover, and a discharge hopper at the bottom of the sealing tank cover. Both sides of the float are equipped with propulsion impellers, a feeding hole is opened through the middle of the float, and a water pump is installed on the side of the float near the power compartment.

[0008] Based on the above technical features, the medium delivery component connected in the middle of the float plate, which includes a mixing reaction tank, a sealed tank cover, a protective cover and a drive motor, can integrate, store, mix, stir and control the delivery of fishpond water quality improvement media during the cruise, so as to achieve uniform compounding and quantitative output of the media.

[0009] Preferably, in the above-mentioned delivery mechanism for fishery applications, a first storage container is installed on one side of the top of the mixing reaction tank, a second storage container is connected to the side of the mixing reaction tank away from the first storage container, and a flushing component is also provided on the outer side of the mixing reaction tank near the opening.

[0010] Based on the above technical features, the first storage device, installed on one side of the top of the mixing reaction tank, can provide an independent storage space for the porous adsorption matrix and beneficial microbial communities, and achieves automatic discharge through a drive motor connection, realizing precise quantitative supply of physical adsorption carrier and biodegradation strain; the second storage device, connected to the other side of the mixing reaction tank, can provide an independent storage space for the slow-release nutrient components, and achieves automatic discharge through a drive motor connection, realizing precise quantitative supply of carbon source, nitrogen source and trace elements and synergistic ratio of the two media.

[0011] Preferably, in the above-mentioned delivery mechanism based on fishery applications, the flushing component includes an annular pipe, and multiple sets of flushing nozzles are arranged on the inner side of the annular pipe. The multiple sets of flushing nozzles are arranged in a circumferential array on the inner side of the opening of the mixing reaction tank. A water supply pipe is also connected to the outer side of the annular pipe, and the distal end of the water supply pipe is connected to a water pump.

[0012] Based on the above technical features, the flushing component, through the coordinated use of an annular pipe, flushing nozzle, and water supply pipe, with the far end of the water supply pipe connected to a water pump, can transport river water and spray it evenly onto the inside of the opening of the mixing reaction tank. This can achieve comprehensive flushing around the opening of the mixing reaction tank, avoid dead corners and local material accumulation, remove residual media and impurities, and ensure the cleanliness of the tank interior and feeding channel.

[0013] Preferably, in the above-mentioned delivery mechanism based on fishery applications, the first storage container and the second storage container have the same structure. The first storage container is used to load a porous adsorption matrix and beneficial microbial flora, and the second storage container is used to load slow-release nutrient components.

[0014] Based on the above technical features, the first and second storage tanks are designed to contain different functional media and can achieve synchronous quantitative discharge under the drive of the same drive motor. This allows the porous adsorption matrix, beneficial microbial flora and slow-release nutrient components to enter the mixing reaction tank in a preset ratio, thereby achieving precise proportioning and synergistic purification of the composite media.

[0015] Preferably, in the above-mentioned feeding mechanism based on fishery applications, the second storage device includes a storage hopper, a distributing impeller rotatably connected to the bottom of the storage hopper, a discharge pipe inclinedly arranged on one side of the storage hopper, a baffle plate rotatably connected to the middle of the discharge pipe, the baffle plate matching the structure of the discharge pipe, a first transmission wheel disk installed at one end of both the baffle plate and the distributing impeller, the baffle plate and the distributing impeller being rotatably connected via the first transmission wheel disk and a transmission belt, a second transmission wheel disk being installed at the other end of the baffle plate and the output end of the drive motor respectively, the baffle plate and the drive motor being rotatably connected via the second transmission wheel disk and a transmission belt.

[0016] Based on the above technical features, the second storage device can achieve precise opening and closing control of the baffle plate through the transmission cooperation between the storage tank, the distributing impeller, the discharge pipe, the baffle plate, the first transmission wheel, the second transmission wheel and the drive motor. It can evenly distribute the slow-release nutrient components in the storage tank into the discharge pipe, realize continuous and stable quantitative feeding, ensure the uniformity and smoothness of the feeding medium, and avoid material bridging or blockage.

[0017] Preferably, in the above-mentioned feeding mechanism based on fishery applications, the bottom of the unloading hopper is provided with several sets of mounting legs, the bottom center of the unloading hopper is connected to a feeding pipe, the feeding pipe is matched with the feeding hole structure, and one end of the feeding pipe is also equipped with an electrically controlled discharge valve.

[0018] Based on the above technical features, the unloading hopper, through the coordinated use of the mounting legs, feeding pipe, electrically controlled discharge valve and feeding hole, can collect and directionally discharge the uniformly stirred composite medium in the mixing reaction tank. Through the precise control of the electrically controlled discharge valve, it is evenly discharged into the fishpond water through the feeding hole, realizing precise control of the dosage and avoiding material spillage and waste.

[0019] Preferably, in the above-mentioned release mechanism based on fishery applications, the sealed can lid has an adjustment cavity inside, and the adjustment cavity is equipped with a linkage component.

[0020] Based on the above technical features, the sealed tank cover can effectively transmit the power of the drive motor to the various stirring and feeding mechanisms inside the mixing reaction tank by adjusting the matching setting of the cavity and linkage components. This can realize the synchronous stirring and uniform mixing of multiple water quality improvement media in the mixing reaction tank, ensuring the synergistic compounding of porous adsorption matrix, beneficial microbial community and slow-release nutrient components.

[0021] Preferably, in the above-mentioned release mechanism based on fishery applications, the linkage component includes a cross plate fixedly installed inside the adjustment cavity. A transmission gear is rotatably connected to the top center of the cross plate. The transmission gear is connected to the output end of the drive motor. Transmission gears are rotatably connected to the ends of the cross plate. The transmission gears are structurally matched with the transmission gear, and the transmission gears are meshed with the transmission gear. A mixing agitator is also installed at the bottom of the four sets of transmission gears.

[0022] Based on the above technical features, this linkage component can distribute and transmit the single output power of the drive motor to four sets of mixing mixers through the transmission cooperation between the cross plate, transmission gear, transmission gear, mixing mixer and drive motor, so as to realize the precision transmission of one source and multiple drives and multi-directional synchronous mixing, ensuring uniform mixing and efficient reaction of composite media, while simplifying power configuration and reducing equipment energy consumption.

[0023] Preferably, in the above-mentioned feeding mechanism based on fishery applications, the output end of the drive motor is connected to a transmission shaft, the transmission shaft is fixedly connected to the bottom of the transmission gear disc, and a spiral shaft is also installed at the far end of the transmission shaft. The spiral shaft is matched with the feeding tube structure, and the spiral shaft and the feeding tube are in a transition fit.

[0024] Based on the above technical features, the drive motor, through the transmission cooperation between the transmission shaft, transmission gear plate, spiral shaft and feeding pipe, can drive four sets of mixing agitators to mix materials while simultaneously driving the spiral shaft to rotate and push within the feeding pipe. This achieves integrated linkage and coordinated operation of mixing and spiral feeding, ensuring that the composite medium is evenly mixed and discharged in a timely manner to avoid accumulation and blockage. Furthermore, through transitional cooperation, precise quantitative and controllable feeding is achieved.

[0025] This invention provides a fishpond water quality improvement medium and its application mechanism for fishery applications, which has the following technical features and beneficial effects: 1. The fishpond water quality improvement medium designed in this invention adopts a three-in-one composite purification mechanism of "porous adsorption-biofilm colonization-slow-release nutrition". Natural mineral materials or biochar materials are selected as porous adsorption substrates. Utilizing their high porosity of 40%-80% and interconnected pore size network of 10μm-500μm, rapid physical adsorption of ammonia nitrogen, nitrite and organic pollutants in the water can be achieved. At the same time, nitrifying bacteria, denitrifying bacteria and other functional bacteria colonizing the surface of the substrate pores form a stable biofilm, which can continuously biodegrade and transform the adsorbed pollutants. It can realize the functional continuity from "physical adsorption" to "biological purification", fundamentally replace the potential pollution risks of chemical agents, avoid water waste and external pollution introduction caused by water exchange, and overcome the limitation of traditional aerators that can only supplement dissolved oxygen and cannot degrade organic matter.

[0026] 2. The dispensing mechanism designed in this invention, through the independent storage structure of the first and second storage containers, combined with the linkage mechanism of the dispensing impeller, discharge pipe, baffle plate, and two-stage transmission wheel, can realize the separate loading and synchronous quantitative dispensing of porous adsorption matrix, beneficial microbial flora, and slow-release nutrient components. The drive motor drives the baffle plate to rotate through a single power source to realize the opening and closing control of the discharge pipe. At the same time, the transmission belt drives the dispensing impeller to rotate synchronously to realize continuous and stable feeding, avoid material bridging or blockage, and realize the precise proportioning and continuous supply of composite media.

[0027] 3. The dispensing mechanism designed in this invention, through the downward extension of the output end of the drive motor and the linkage component forming a third-stage transmission connection, in conjunction with the meshing transmission mechanism of the transmission shaft, transmission gear disc, transmission gear and four sets of mixing agitators, can achieve full mixing of various water purification carriers, ensuring the uniform compounding and synergistic reaction of porous adsorption matrix, beneficial microbial flora and slow-release nutrient components. At the same time, through the transitional cooperation between the spiral shaft and the feeding pipe to form a fourth-stage transmission, the uniformly mixed medium is continuously pushed while stirring. After precise control by the electronically controlled discharge valve, it is uniformly dispensed through the feeding hole, realizing continuous operation of stirring and feeding at the same time and automatic, continuous and quantitative dispensing of the medium. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the floating plate structure in this invention; Figure 3 This is a schematic diagram showing the disassembly of the media delivery component in this invention; Figure 4 This is a schematic diagram of the mixing reaction vessel structure in this invention; Figure 5 This is a cross-sectional view of the discharge pipe in this invention; Figure 6 This is a schematic diagram of the material distribution impeller structure in this invention; Figure 7 This is a schematic diagram of the unloading hopper structure in this invention; Figure 8 This is a schematic diagram of the spiral shaft structure in this invention; Figure 9 This is a schematic diagram of the linkage component structure in this invention.

[0029] In the diagram: 1. Float; 11. Propulsion impeller; 12. Feeding hole; 13. Water pump; 2. Power supply compartment; 3. Medium delivery assembly; 4. Mixing reaction tank; 41. First storage tank; 42. Second storage tank; 421. Storage bucket; 422. Distributor impeller; 423. Discharge pipe; 424. Baffle plate; 425. First drive wheel; 426. Second drive wheel; 43. Flushing component; 431. Annular pipe; 432. Flushing nozzle; 433. Water supply pipe; 5. Sealing tank cover; 51. Adjustment cavity; 52. Linkage component; 521. Cross plate; 522. Drive gear plate; 523. Drive gear; 524. Mixing agitator; 6. Protective cover; 7. Drive motor; 71. Drive shaft; 72. Spiral shaft; 8. Discharge hopper; 81. Mounting support; 82. Feeding pipe; 83. Electrically controlled discharge valve. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides a technical solution for a fishpond water quality improvement medium based on fishery applications: it includes a porous adsorption matrix and composite functional components loaded on the porous adsorption matrix. The porous adsorption matrix is ​​a natural mineral material, biochar material or its composite material, with a porosity of 40%-80% and a pore size distribution of 10μm-500μm. The pores are interconnected to form a three-dimensional network channel, which is used to adsorb ammonia nitrogen, nitrite and organic pollutants in fishpond water. The composite functional components include beneficial microbial flora and slow-release nutrient components. The beneficial microbial flora includes nitrifying bacteria, denitrifying bacteria and functional bacteria that decompose organic matter, which are used to biodegrade water pollutants and maintain the ecological balance of water bodies. Furthermore, the beneficial microbial flora colonize the pore surface of the porous adsorption matrix to form a biofilm. The slow-release nutrient components include carbon sources, nitrogen sources, and trace elements embedded in the biodegradable polymer; the slow-release nutrient components release nutrients through the gradual degradation of the biodegradable polymer, and the release rate is designed to adapt to the metabolic needs of beneficial microbial communities.

[0032] Please see Figures 1 to 4This invention provides a technical solution for a dispensing mechanism based on fishery applications: It includes a float 1, a power supply compartment 2 installed at one end of the float 1, a media dispensing assembly 3 connected to the middle of the float 1, the media dispensing assembly 3 including a mixing reaction tank 4, a sealing tank cover 5 at the top of the mixing reaction tank 4, a protective cover 6 connected to the top of the sealing tank cover 5, a drive motor 7 installed at the top of the protective cover 6, and a discharge hopper 8 at the bottom of the sealing tank cover 5. Propulsion impellers 11 are installed on both sides of the float 1, a feeding hole 12 is opened through the middle of the float 1, and a water pump 13 is installed on the side of the float 1 near the power supply compartment 2. Through the media dispensing assembly 3 connected to the middle of the float 1, which includes the mixing reaction tank 4, the sealing tank cover 5, the protective cover 6, and the drive motor 7, the media for improving fishpond water quality can be integrated, stored, mixed, stirred, and... The mixing reaction tank 4 is equipped with a first storage container 41 on one side of its top. A second storage container 42 is connected to the side of the mixing reaction tank 4 away from the first storage container 41. A rinsing component 43 is also provided on the outer side of the mixing reaction tank 4 near the opening. The first storage container 41, installed on one side of the top of the mixing reaction tank 4, provides an independent storage space for the porous adsorption matrix and beneficial microbial flora. It is automatically discharged through the transmission connection with the drive motor 7, realizing the precise quantitative supply of physical adsorption carrier and biodegradation bacteria. The second storage container 42, connected to the other side of the mixing reaction tank 4, provides an independent storage space for the slow-release nutrient components. It is also automatically discharged through the transmission connection with the drive motor 7, realizing the precise quantitative supply of carbon source, nitrogen source and trace elements and the synergistic ratio of the two media.

[0033] As one embodiment of the present invention, such as Figures 4 to 6As shown, the flushing component 43 includes an annular pipe 431. Multiple sets of flushing nozzles 432 are arranged on the inner side of the annular pipe 431, and these nozzles are arranged in a circumferential array inside the opening of the mixing tank 4. A water supply pipe 433 is connected to the outer side of the annular pipe 431, and the distal end of the water supply pipe 433 is connected to a water pump 13. Through the coordinated use of the annular pipe 431, the flushing nozzles 432, and the water supply pipe 433, and with the distal end of the water supply pipe 433 connected to the water pump 13, the flushing component 43 can transport and evenly spray river water onto the inner side of the opening of the mixing tank 4, achieving full flushing of the area around the opening of the mixing tank 4. The surface is flushed to avoid dead corners and local material accumulation, remove residual media and impurities, and ensure the cleanliness of the tank interior and feeding channel. The first storage tank 41 and the second storage tank 42 have the same structure. The first storage tank 41 is used to load the porous adsorption matrix and beneficial microbial flora, while the second storage tank 42 is used to load the slow-release nutrient components. The first storage tank 41 and the second storage tank 42 are designed to load different functional media. They can achieve synchronous quantitative discharge under the drive of the same drive motor 7, so that the porous adsorption matrix, beneficial microbial flora and slow-release nutrient components enter the mixing reaction tank 4 in a preset ratio, realizing the precise ratio and synergistic purification function of the composite media.

[0034] The second storage device 42 includes a storage bin 421. A distributing impeller 422 is rotatably connected to the bottom of the storage bin 421. A discharge pipe 423 is inclinedly arranged on one side of the storage bin 421. A baffle plate 424 is rotatably connected to the middle of the discharge pipe 423. The baffle plate 424 and the discharge pipe 423 are structurally matched. A first transmission wheel 425 is installed at one end of both the baffle plate 424 and the distributing impeller 422. The baffle plate 424 and the distributing impeller 422 are rotatably connected by the first transmission wheel 425 and a transmission belt. A second transmission wheel 425 is installed at the other end of the baffle plate 424 and the output end of the drive motor 7, respectively. The wheel 426, the baffle plate 424 and the drive motor 7 are rotatably connected by the second transmission wheel 426 and the transmission belt. The second storage device 42, through the transmission cooperation between the storage tank 421, the distributing impeller 422, the discharge pipe 423, the baffle plate 424, the first transmission wheel 425, the second transmission wheel 426 and the drive motor 7, can realize the precise opening and closing control of the baffle plate 424, and can evenly push the slow-release nutrient components in the storage tank 421 into the discharge pipe 423 to achieve continuous and stable quantitative feeding, ensure the uniformity and smoothness of the feeding medium, and avoid material bridging or blockage.

[0035] As one embodiment of the present invention, such as Figures 7 to 9As shown, the bottom of the unloading hopper 8 is equipped with several sets of mounting legs 81. A feeding pipe 82 is connected to the middle of the bottom of the unloading hopper 8. The feeding pipe 82 is structurally matched with the feeding hole 12. One end of the feeding pipe 82 is also equipped with an electrically controlled discharge valve 83. Through the coordinated use of the mounting legs 81, feeding pipe 82, electrically controlled discharge valve 83, and feeding hole 12, the unloading hopper 8 can collect and directionally discharge the uniformly stirred composite medium from the mixing reaction tank 4. Under the precise control of the electrically controlled discharge valve 83, the medium is evenly released into the fishpond water through the feeding hole 12, achieving… Precise dosage control avoids material spillage and waste. The sealed tank cover 5 has an adjustment cavity 51 inside, and a linkage component 52 is set inside the adjustment cavity 51. Through the cooperation of the adjustment cavity 51 and the linkage component 52, the sealed tank cover 5 can effectively transmit the power of the drive motor 7 to the various stirring and feeding mechanisms inside the mixing reaction tank 4. This can realize the synchronous stirring and uniform mixing of multiple water quality improvement media in the mixing reaction tank 4, ensuring the synergistic compounding of porous adsorption matrix, beneficial microbial community and slow-release nutrient components.

[0036] The linkage component 52 includes a cross plate 521 fixedly installed inside the adjustment cavity 51. A transmission gear 522 is rotatably connected to the top center of the cross plate 521. The transmission gear 522 is connected to the output end of the drive motor 7. Transmission gears 523 are rotatably connected to the ends of the cross plate 521. The transmission gears 523 and the transmission gear 522 are structurally matched and meshed. Mixing agitators 524 are also installed at the bottom of the four sets of transmission gears 522. Through the transmission cooperation between the cross plate 521, the transmission gears 522, the transmission gears 523, the mixing agitators 524, and the drive motor 7, the linkage component 52 can distribute and transmit the single output power of the drive motor 7 to the four sets of mixing agitators 524, realizing precise transmission and multi-directional synchronous mixing from a single source. To ensure uniform mixing and efficient reaction of the composite medium, while simplifying power configuration and reducing equipment energy consumption, the output end of the drive motor 7 is connected to a transmission shaft 71, which is fixedly connected to the bottom of the transmission gear disk 522. A spiral shaft 72 is also installed at the far end of the transmission shaft 71. The spiral shaft 72 is structurally matched with the feeding pipe 82, and there is a transition fit between the spiral shaft 72 and the feeding pipe 82. Through the transmission fit between the transmission shaft 71, the transmission gear disk 522, the spiral shaft 72 and the feeding pipe 82, the drive motor 7 can drive the four sets of mixing agitators 524 to mix the materials while driving the spiral shaft 72 to rotate and push within the feeding pipe 82. This achieves integrated linkage and coordinated operation of mixing and spiral feeding, ensuring that the composite medium is discharged in time after being mixed evenly to avoid accumulation and blockage, and achieving precise quantitative controllable feeding through the transition fit.

[0037] Working Principle: The water quality improvement medium designed in this scheme adopts a three-in-one composite purification mechanism of "porous adsorption - biofilm colonization - slow-release nutrients". The porous adsorption substrate is made of natural mineral materials or biochar materials, with a high porosity of 40%-80% and a network of interconnected pore sizes of 10μm-500μm. First, it quickly intercepts ammonia nitrogen, nitrite and organic pollutants in the water through physical adsorption. Then, nitrifying bacteria, denitrifying bacteria and other functional bacteria colonize the surface of the substrate pores to form a biofilm, which can biodegrade and transform the adsorbed pollutants. This achieves a continuous function from "physical adsorption" to "biological purification", encapsulating biodegradable pollutants. The slow-release nutrients in the biodegradable polymer precisely release carbon, nitrogen, and trace elements according to the metabolic needs of the microbial community, ensuring the continuous and stable activity of the biofilm. This can build a self-sustaining aquatic ecological balance system, fundamentally replacing the pollution risks of chemical agents, avoiding water waste and the introduction of external pollution caused by water changes, and overcoming the functional limitations of aerators that can only increase oxygen but cannot degrade organic matter. At the same time, this composite medium can form a highly efficient degradation network in the water, achieving the synergistic treatment of ammonia nitrogen, nitrite, organic pollutants, and trace elements, maintaining the dissolved oxygen content and ecological stability of the aquaculture water, and effectively inhibiting abnormal algal growth and eutrophication.

[0038] The media delivery mechanism designed in this scheme adopts a floating platform 1 design. Powered by the power supply compartment 2, it drives the two-sided propulsion impellers 11 to achieve autonomous navigation in the water. Its core innovation lies in the integrated design of the media delivery component 3: the first storage tank 41 is loaded with porous adsorption matrix and beneficial microbial flora, and the second storage tank 42 is loaded with slow-release nutrients. Taking the second storage tank 42 as an example, it is equipped with a distributing impeller 422 rotatably connected to the bottom of the storage tank 421, a discharge pipe 423 inclined on one side, and a baffle plate 424 rotatably connected in the middle of the discharge pipe 423. The drive motor 7 serves as the power source for the entire device, and its output is transmitted through the second transmission wheel. The disc 426 and the transmission belt can form a first-stage transmission connection with the baffle plate 424. When the drive motor 7 is powered on, it can drive the baffle plate 424 to rotate, which can realize the opening and closing control of the discharge pipe 423 and complete the quantitative discharge. At the same time, the other end of the baffle plate 424 can form a second-stage transmission connection with the distribution impeller 422 through the first transmission wheel disc 425 and the transmission belt. When the baffle plate 424 rotates, it can drive the distribution impeller 422 to rotate synchronously, which can evenly push the material at the bottom of the storage barrel 421 into the discharge pipe 423, which can realize continuous and stable feeding, avoid material bridging or blockage, and ensure that the slow-release nutrient components are delivered at the designed rate.

[0039] After the material enters the mixing reaction tank 4, the output end of the drive motor 7 continues to extend downward, forming a third-level transmission connection with the linkage component 52. The transmission shaft 71 drives the transmission gear plate 522 to rotate. The transmission gear plate 522 meshes with the four sets of transmission gears 523 at the end of the cross plate 521, which can drive the mixing agitator 524 to fully mix various water purification carriers, ensuring that the porous adsorption matrix, beneficial microbial flora and slow-release nutrient components are uniformly compounded and synergistically proportioned. At the same time, the spiral shaft 72 at the far end of the drive shaft 71 transitions with the feeding pipe 82, which can also form a fourth-level transmission. While stirring, it can continuously push the uniformly mixed medium into the feeding pipe 82 of the discharge hopper 8. After being precisely controlled by the electrically controlled discharge valve 83 installed on one side of the feeding pipe 82, it can be evenly released into the fishpond water through the feeding hole 12 in the middle of the float plate 1, realizing the automatic, continuous and quantitative release of the medium.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pond water quality improvement medium for fishery applications, characterized in that: It includes a porous adsorption matrix and composite functional components loaded on the porous adsorption matrix. The porous adsorption matrix is ​​a natural mineral material, biochar material or its composite material, with a porosity of 40%-80% and a pore size distribution of 10μm-500μm. The pores are interconnected to form a three-dimensional network channel, which is used to adsorb ammonia nitrogen, nitrite and organic pollutants in fish pond water. The composite functional components include beneficial microbial flora and slow-release nutrient components. The beneficial microbial flora includes nitrifying bacteria, denitrifying bacteria and functional bacteria that decompose organic matter, which are used to biodegrade water pollutants and maintain the ecological balance of water bodies. The beneficial microbial flora colonize the pore surface of the porous adsorption matrix to form a biofilm. The slow-release nutrient components include carbon sources, nitrogen sources, and trace elements embedded in a biodegradable polymer. The slow-release nutrient component releases nutrients through the gradual degradation of the biodegradable polymer, with the release rate designed to adapt to the metabolic needs of the beneficial microbial community.

2. A deployment mechanism for fisheries applications, comprising a float (1), characterized in that: A power supply compartment (2) is installed at one end of the float (1), and a medium delivery assembly (3) is connected to the middle of the float (1). The medium delivery assembly (3) includes a mixing reaction tank (4). A sealing tank cover (5) is provided on the top of the mixing reaction tank (4). A protective cover (6) is connected to the top of the sealing tank cover (5). A drive motor (7) is installed on the top of the protective cover (6). A discharge hopper (8) is also provided at the bottom of the sealing tank cover (5). Both sides of the float (1) are equipped with propulsion impellers (11), and a feeding hole (12) is opened through the middle of the float (1). A water pump (13) is provided on the side of the float (1) near the power compartment (2).

3. The fishpond water quality improvement medium and application mechanism based on fishery applications according to claim 2, characterized in that: A first storage container (41) is installed on one side of the top of the mixing reaction tank (4), and a second storage container (42) is connected to the side of the mixing reaction tank (4) away from the first storage container (41). A flushing component (43) is also provided on the outside of the mixing reaction tank (4) near the opening.

4. The fishpond water quality improvement medium and application mechanism based on fishery applications according to claim 3, characterized in that: The flushing component (43) includes an annular pipe (431), and multiple sets of flushing nozzles (432) are arranged on the inner side of the annular pipe (431). The multiple sets of flushing nozzles (432) are arranged in a circumferential array on the inner side of the opening of the mixing reaction tank (4). A water supply pipe (433) is also connected to the outer side of the annular pipe (431), and the far end of the water supply pipe (433) is connected to a water pump (13).

5. The fishpond water quality improvement medium and application mechanism based on fishery applications according to claim 4, characterized in that: The first storage container (41) and the second storage container (42) have the same structure. The first storage container (41) is used to load the porous adsorption matrix and beneficial microbial flora, and the second storage container (42) is used to load the slow-release nutrient components.

6. The fishpond water quality improvement medium and application mechanism based on fishery applications according to claim 5, characterized in that: The second storage device (42) includes a storage bucket (421), a distributing impeller (422) is rotatably connected to the bottom of the storage bucket (421), a discharge pipe (423) is inclinedly arranged on one side of the storage bucket (421), a baffle plate (424) is rotatably connected to the middle of the discharge pipe (423), the baffle plate (424) is structurally matched with the discharge pipe (423), a first transmission wheel (425) is installed at one end of the baffle plate (424) and the distributing impeller (422), the baffle plate (424) and the distributing impeller (422) are rotatably connected through the first transmission wheel (425) and the transmission belt, the other end of the baffle plate (424) and the output end of the drive motor (7) are respectively installed with a second transmission wheel (426), the baffle plate (424) and the drive motor (7) are rotatably connected through the second transmission wheel (426) and the transmission belt.

7. A fishpond water quality improvement medium and application mechanism based on fishery applications as described in claim 6, characterized in that: The bottom of the unloading hopper (8) is provided with several sets of mounting feet (81), and the middle of the bottom of the unloading hopper (8) is connected to a feeding pipe (82). The feeding pipe (82) is matched with the feeding hole (12) in structure, and an electrically controlled discharge valve (83) is also installed at one end of the feeding pipe (82).

8. The fishpond water quality improvement medium and application mechanism based on fishery applications according to claim 7, characterized in that: The sealed can lid (5) has an adjustment cavity (51) inside, and a linkage component (52) is provided inside the adjustment cavity (51).

9. A fishpond water quality improvement medium and application mechanism based on fishery applications as described in claim 8, characterized in that: The linkage component (52) includes a cross plate (521) fixedly installed inside the adjustment cavity (51). A transmission gear plate (522) is rotatably connected to the top center of the cross plate (521). The transmission gear plate (522) is connected to the output end of the drive motor (7) for transmission. Transmission gears (523) are rotatably connected to the ends of the cross plate (521). The transmission gears (523) are structurally matched with the transmission gear plate (522). The transmission gears (523) and the transmission gear plate (522) are meshed. A mixing agitator (524) is also installed at the bottom of the four sets of transmission gear plates (522).

10. A fishpond water quality improvement medium and application mechanism based on fishery applications as described in claim 9, characterized in that: The output end of the drive motor (7) is connected to a transmission shaft (71), which is fixedly connected to the bottom of the transmission gear plate (522). A spiral shaft (72) is also installed at the far end of the transmission shaft (71). The spiral shaft (72) is structurally matched with the feeding pipe (82), and there is a transition fit between the spiral shaft (72) and the feeding pipe (82).

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