Aquaculture water nutrient substance recycling device

Abstract

The invention relates to the technical field of aquaculture, and discloses an aquaculture water nutrient substance recycling device which comprises a shell, a treatment box, a reaction box, a settling box and a disinfection box are arranged in the shell, two filtering frames are arranged in the treatment box, two cleaning assemblies are arranged on the left side of the shell, and the two cleaning assemblies are arranged on the right side of the shell. Fixing assemblies are arranged on the two sides of the two filtering frames. According to the aquaculture water nutrient substance recycling device, by arranging screens with different hole diameters in the treatment box and arranging a suspension filter material layer, a precipitation filter material layer and a pebble bearing layer in the reaction box, large-particle impurities, organic scraps and the like in water can be efficiently intercepted and removed, and meanwhile by means of the metabolism effect of microorganisms, the nutrient substances in the water can be recycled. Harmful substances such as ammonia nitrogen in a water body are converted, the water quality is remarkably improved, meanwhile, the water body can be uniformly distributed through the design of the stirring assembly, the uniformity of dissolved oxygen is improved, and metabolic activity of microorganisms is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, and in particular to a device for recycling nutrients in aquaculture water. Background Art

[0002] In the aquaculture industry, traditional farming methods are often accompanied by large-scale water resource consumption and environmental pollution problems. In order to cope with these problems, aquaculture water recycling technology has received widespread attention and development in recent years. However, the existing aquaculture water recycling devices still have certain shortcomings.

[0003] For harmful substances such as ammonia and nitrogen in water bodies, existing devices often lack effective conversion and treatment methods, which can easily cause water quality deterioration and affect the growth and health of farmed organisms. At the same time, they are unable to treat water bodies in stages, and the filtration effect of impurities that are easily retained in the water body is low, so that pathogens will still be produced during subsequent standing, affecting the stability of the growth environment of farmed organisms. Therefore, a nutrient recycling device for aquaculture water is proposed to solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology and provide a device for recycling nutrients in aquaculture water, which mainly solves the technical problem that the existing device has imperfect stage-by-stage filtration, resulting in pathogens still being active after standing still.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a device for recycling nutrients in aquaculture water, comprising a shell, wherein the shell internally comprises: a treatment box, the treatment box being located at the upper inner side of the shell, the treatment box comprising a filter frame, a cleaning component and a fixing component, the treatment box being used for pre-treating and screening out large particles of impurities in the water; a reaction box, the reaction box being located at the lower part of the treatment box and being connected to the treatment box, the reaction box being provided with a suspended filter material layer, a sedimentation filter material layer and a pebble support layer in sequence from top to bottom, a receiving chamber being provided at the bottom of the reaction box, a stirring component being installed in the receiving chamber, an aerator being externally connected to the reaction box, the aerator being used for providing dissolved oxygen to the reaction box, the reaction box being used for receiving water in the treatment box and performing fine filtering and mixing to adjust water quality; a sedimentation box, the sedimentation box being installed adjacent to the reaction box and being connected to the reaction box, the sedimentation box being used for precipitating water discharged from the reaction box; and a disinfection box, the disinfection box being located at the upper part of the sedimentation box and being connected to the sedimentation box, the disinfection box being provided with an ultraviolet disinfection lamp and an ozone generator, and being used for disinfecting the water.

[0007] Preferably, the filter frames are arranged vertically, and there are at least two filter frames. The cleaning component is located at the left end of the filter frame and extends to the surface of the outer shell. Fixed components are installed on both sides of the filter frame.

[0008] Preferably, the cleaning assembly includes an electric push rod, which is located on the lower side of the filter frame. The electric push rod is divided into a first push rod and a second push rod. The first push rod is located on the upper side. A blade plate is installed at the end of the first push rod, and a brush plate is installed at the end of the second push rod. Guide rods are installed on both sides of the blade plate and the brush plate.

[0009] Preferably, a cavity is provided on the inner side of the fixing assembly, a spring is fixedly installed on the inner wall of the cavity, and a clamping rod is fixedly installed on one end of the spring and is slidably connected to the inner wall of the wall; a fixing frame is installed on the inner wall of the processing box, and the fixing frame is located on both sides of the filter frame; a clamping groove corresponding to the position of the clamping rod is provided on the side of the fixing frame close to the cavity.

[0010] Preferably, a water inlet pipe connected to the treatment box is provided on the top of the shell, a connecting pipe is provided between the treatment box and the reaction box, a suction pump 1 connected to the reaction box and the sedimentation box is provided on the rear side of the shell, water quality sensors are provided at the water inlets of the connecting pipe and the suction pump 1, and a suction pump 2 connected to the sedimentation box and the disinfection box is provided on the rear side of the shell.

[0011] Preferably, a pH sensor is provided on the top of the reaction box, a box body is provided on the left side of the shell, a feeding pipe is provided between the box body and the reaction box, and a valve body is provided on the feeding pipe.

[0012] Preferably, two backwash pipes are provided inside the reaction box, and one end of the two backwash pipes extends to the left side of the shell and is connected to a water diversion pipe.

[0013] Preferably, a sealed door is provided on the front side of the shell, a transparent window is provided on the sealed door, a controller is provided on the top right side of the shell; and a circulation pipe is provided on the rear side of the disinfection box.

[0014] Preferably, a screen is provided at the bottom of the filter frame, and the blade plate and the brush plate are in contact with the bottom of the screen.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1: The present invention can efficiently intercept and remove large particles of impurities, organic debris, etc. in the water body by arranging screens of different apertures in the treatment box, a suspended filter material layer, a sedimentation filter material layer and a pebble support layer in the reaction box. At the same time, it utilizes the metabolic action of microorganisms to transform harmful substances such as ammonia nitrogen in the water body, significantly improving the water quality. At the same time, the design of the stirring component enables the water body to be evenly distributed, improves the uniformity of dissolved oxygen, and facilitates the metabolic activity of microorganisms.

[0017] 2. The aquaculture water nutrient recycling device can monitor the water condition in real time by setting water quality sensors and pH sensors, and automatically adjust the water quality according to the monitoring results to ensure the stability of the water environment and meet the growth needs of the aquaculture organisms.

[0018] 3. The aquaculture water nutrient recycling device, the treated water enters the sedimentation tank for further purification, the precipitated sludge and other nutrients are rich and can be recycled as organic fertilizer. At the same time, the ultraviolet disinfection lamp and ozone generator in the disinfection box can kill pathogens in the water and ensure the safety of the water. The treated water is transported back to the aquaculture pool through the circulation pipe, realizing the recycling of nutrients and reducing resource waste.

[0019] 4. The aquaculture water nutrient recycling device can conveniently clean and replace the filter frame by providing a cleaning component and a fixing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the filter frame and cleaning component of the present invention;

[0024] Figure 4 For the present invention Figure 2 A magnified view of the structure at center A;

[0025] Figure 5 Schematic diagram of the three-dimensional structure of the reaction box and the precipitation box of the present invention;

[0026] Figure 6 A partial rear perspective view of the housing of the present invention;

[0027] Figure 7is a cross-sectional view of a reaction box of the present invention;

[0028] Figure 8 Schematic diagram of the overall system of the present invention;

[0029] In the figure: 1. Housing; 2. Processing box; 21. Filter frame; 22. Cleaning assembly; 23. Fixing assembly; 201. Electric push rod; 2011. First push rod; 2012. Second push rod; 202. Brush plate; 203. Guide rod; 204. Blade plate; 2001. Cavity; 2002. Spring; 2003. Clamping rod; 2004. Fixing bracket; 2005. Clamping slot; 3. Reaction box; 31. Suspended filter material layer; 32. Sedimentation filter material layer; 33. Pebble support layer; 34 , accommodating chamber; 35. Stirring assembly; 36. Aerator; 37. Box body; 38. Backwash pipe; 301. Stirring rod; 302. Motor; 303. Sprocket; 304. Chain; 4. Sedimentation tank; 41. Sludge pump; 5. Disinfection tank; 51. Ultraviolet disinfection lamp; 52. Ozone generator; 53. Air pump; 54. Circulation pipe; 601. Connecting pipe; 602. pH sensor; 603. Suction pump 1; 604. Suction pump 2; 605. Feeding pipe; 606. Valve body. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] Example 1

[0032] In a first aspect of the present invention, Figure 1-7 As shown, a device for recycling nutrients in aquaculture water is provided, which includes a shell 1. The shell 1 contains: a treatment box 2, which is located at the upper inner side of the shell 1. The treatment box 2 includes a filter frame 21, a cleaning component 22 and a fixing component 23. The treatment box 2 is used for pre-treatment and screening of large particles of impurities in the water; a reaction box 3, which is located at the lower part of the treatment box 2 and is connected to the treatment box 2. The reaction box 3 is provided with a suspended filter material layer 31, a sedimentation filter material layer 32 and a pebble support layer 33 from top to bottom, and a receiving cavity 3 is provided at the bottom of the reaction box 3. 4. A stirring assembly 35 is installed inside the accommodating chamber 34. The reaction box 3 is externally connected to an aerator 36. The aerator 36 is used to provide dissolved oxygen to the reaction box 3. The reaction box 3 is used to receive the water from the treatment box 2 and finely filter and mix to adjust the water quality; the sedimentation box 4 is installed adjacent to the reaction box 3, and the sedimentation box 4 and the reaction box 3 are connected. The sedimentation box 4 is used to precipitate the water discharged from the reaction box 3; the disinfection box 5 is located on the upper part of the sedimentation box 4, and the disinfection box 5 and the sedimentation box 4 are connected. The disinfection box 5 includes an ultraviolet disinfection lamp 51 and an ozone generator 52 inside, and the disinfection box 5 is used to disinfect the water;

[0033] Its overall structure is located inside the outer shell 1. The aquaculture water enters the treatment box 2 from the water inlet pipe, and the filter frames 21 with different apertures are used to intercept large particles of impurities such as leftover bait, feces, and aquatic organism corpses in the water, thereby reducing the subsequent processing burden; the water treated inside the treatment box 2 enters the reaction box 3 again, and the reaction box 3 is filtered twice by a multi-layer filter structure, namely a suspended filter layer 31, a sedimentation filter layer 32 and a pebble support layer 33. The suspended filter layer 31 can initially intercept larger particles of impurities, organic debris, etc. At the same time, a large number of microorganisms are attached to the surface of the suspended filter layer 31, which can initially filter out organic pollutants in the water. Decomposition, converting some macromolecular organic matter into small molecular substances. The water passing through the suspended filter layer 31 then enters the sedimentation filter layer 32, which can further filter out fine particles remaining in the water. During this process, microorganisms continue to play a role, converting harmful substances such as ammonia nitrogen in the water. For example, nitrifying bacteria convert ammonia nitrogen into nitrite and nitrate. The pebble support layer 33 mainly plays the role of supporting the upper filter material and ensuring the stability of the filter material structure. The aerator 36 provides sufficient dissolved oxygen for the water in the reaction box 3, which can promote aerobic reactions such as nitrification, reduce the ammonia nitrogen content in the water, and ensure stable water quality.

[0034] The filtered water enters the accommodating chamber 34, where it is stirred at the bottom. When the stirring assembly 35 is working, it pushes the water upward from the bottom, driving the entire water circulation, causing the impurities and nutrients accumulated at the bottom to flip upward and be evenly distributed in the water. At the same time, it helps to better transport the oxygen generated by bottom aeration to the upper water layer. After the stirring is completed, the internal water is sucked into the sedimentation tank 4, so that the suspended particles and microbial metabolites in the treated water are precipitated, further removing impurities in the water and improving the water quality. By providing a sludge pump 41, it is convenient to extract the sludge settled at the bottom of the sedimentation tank 4.

[0035] After the internal treatment of the sedimentation tank 4 is completed, it will be pumped out again into the disinfection tank 5, where ultraviolet rays and ozone will be used to kill harmful bacteria, viruses, parasites and other pathogens in the water to prevent the spread of diseases. Oxygen will also be injected into the water to increase the dissolved oxygen content of the water, meet the breathing needs of the cultured organisms, and promote the metabolism of aerobic microorganisms.

[0036] In a further implementation, the filter frame 21 is arranged vertically, and there are at least two filter frames 21. The cleaning component 22 is located at the left end of the filter frame 21 and extends to the surface of the outer shell 1. Fixed components 23 are installed on both sides of the filter frame 21; the apertures of the screens arranged on the two filter frames 21 in the processing box 2 are different. When impurities enter the interior of the processing box 2, if blockage occurs, the cleaning component 22 can be activated to ensure that the impurities on the screen can fall smoothly to the bottom.

[0037] In a further implementation, the cleaning assembly 22 includes an electric push rod 201, which is located at the lower side of the filter frame 21. The electric push rod 201 is divided into a first push rod 2011 and a second push rod 2012. The first push rod 2011 is located on the upper side, and a blade plate 204 is installed at the end of the first push rod 2011, and a brush plate 202 is installed at the end of the second push rod 2012. Guide rods 203 are installed on both sides of the blade plate 204 and the brush plate 202; the first push rod 2011 is installed on the filter frame 21 which is prone to clogging at the upper part, and the blade plate 204 is connected to the first push rod 2011. When large particles are blocked, the blade plate 204 can be cut off from the bottom to reduce the particle size of the large particles, thereby avoiding clogging in the lower filter frame 21 after passing through the upper filter frame 21.

[0038] In further implementation, Figure 3-4 As shown, a cavity 2001 is provided on the inner side of the fixing assembly 23, and a spring 2002 is fixedly installed on the inner wall of the cavity 2001, and one end of the spring 2002 is fixedly installed with a card rod 2003 slidably connected to the inner wall of the wall; a fixing frame 2004 is installed on the inner wall of the processing box 2, and the fixing frame 2004 is located on both sides of the filter frame 21; a card slot 2005 corresponding to the position of the card rod 2003 is provided on the side of the fixing frame 2004 close to the cavity 2001; the electric push rod 201 is used to drive the brush plate 202 to move to clean the screen, and in order to improve the stability of the brush plate 202 when it moves, guide rods 203 are provided on the left and right sides of the brush plate 202. It should be added that a guide groove adapted to the guide rod 203 is provided on the inner wall of the processing box 2, so that the brush plate 202 can slide smoothly in the guide groove through the guide rod 203;

[0039] By setting up a fixing component 23 and utilizing the expansion and contraction of the spring 2002, the locking rod 2003 can be driven to engage in or withdraw from the locking slot 2005, thereby fixing and unlocking the installation between the filter frame 21 and the two fixing frames 2004, thereby improving the stability of the filter frame 21 installed in the processing box 2 and facilitating the removal of the filter frame 21 for cleaning and replacement.

[0040] In further implementation, Figure 2 、 5 As shown, a water inlet pipe connected to the treatment box 2 is provided on the top of the housing 1, a connecting pipe 601 is provided between the treatment box 2 and the reaction box 3, a liquid suction pump 1 603 connected to the reaction box 3 and the sedimentation box 4 is provided on the rear side of the housing 1, and water quality sensors are provided at the water inlets of the connecting pipe 601 and the liquid suction pump 1 603. A liquid suction pump 2 604 connected to the sedimentation box 4 and the disinfection box 5 is provided on the rear side of the housing 1;

[0041] A pH sensor 602 is provided on the top of the reaction box 3, a box body 37 is provided on the left side of the housing 1, a feeding pipe 605 is provided between the box body 37 and the reaction box 3, and a valve body 606 is provided on the feeding pipe 605;

[0042] The water quality sensors on the connecting pipe 601 and the suction pump 603 can monitor the water quality of the water entering and flowing out of the reaction box 3 in real time. The pH sensor 602 is used to monitor the acidity and alkalinity of the water in the reaction box 3. Due to the metabolic activities of microorganisms in the reaction box 3 and various chemical reactions in the water, the pH value may change. The pH sensor 602 can promptly feedback this change. The box body 37 is used to store agents for regulating water quality. When the pH sensor 602 detects an abnormal pH value and the water in the reaction box 3 needs to be adjusted, the valve body 606 is opened and the substance in the box body 37 can be added to the reaction box 3 through the feeding tube 605.

[0043] In further implementation, Figure 2 and Figure 7 As shown, two backwash pipes 38 are provided inside the reaction box 3, and one end of the two backwash pipes 38 extends to the left side of the shell 1 and is connected to a water diversion pipe; by setting the backwash pipe 38 and the water diversion pipe, the water diversion pipe is connected to the external water source, and the water source is transported to the backwash pipe 38. After the reaction box 3 has been running for a period of time, the filter material layer will intercept a large amount of impurities and microbial metabolites, causing the filter material to be blocked, affecting the filtration and purification effect, the backwash pipe 38 is set to regularly backwash the suspended filter material layer 31 and the precipitated filter material layer 32.

[0044] In further implementation, Figure 5 and Figure 6 As shown, a sealed door is provided on the front side of the shell 1, a transparent window is provided on the sealed door, and a controller is provided on the upper right side of the top of the shell 1; a circulation pipe 54 is provided on the rear side of the disinfection box 5; a screen is provided at the bottom of the filter frame 21, and the blade plate 204 and the brush plate 202 are in contact with the bottom of the screen; by arranging a suction pump 1 603 and a suction pump 2 604, the suction pump 1 603 is used to transport the water in the reaction box 3 to the sedimentation box 4, and the suction pump 2 604 transports the water in the sedimentation box 4 to the disinfection box 5, and a circulation pipe 54 is provided on the rear side of the disinfection box 5 to transport the treated water to the aquaculture pool.

[0045] During implementation, the following method is followed: water from the aquaculture pond enters the treatment tank 2 and passes through the filter frame 21 to filter particulate matter in the water, then enters the reaction tank 3, passes through the filtration and microbial action of the suspended filter layer 31, the sedimentation filter layer 32 and the pebble support layer 33, and at the same time, the aerator 36 is started to provide dissolved oxygen. At the same time, the stirring assembly 35 is started, and the stirring rod 301 is driven through the sprocket 303 and the chain 304 to promote water circulation and improve the uniformity of dissolved oxygen. According to the monitoring results of the water quality sensor and the pH value sensor 602, the water quality is adjusted by adding a reagent to the reaction tank 3 through the feeding pipe 605. The water treated in the reaction tank 3 enters the sedimentation tank 4 to precipitate suspended particles and microbial metabolites, and the sludge pump 41 is started to extract the sludge at the bottom of the sedimentation tank 4. Start the suction pump 2604 to transport the water in the sedimentation tank 4 to the disinfection tank 5, start the ultraviolet disinfection lamp 51 and the ozone generator 52 to kill the pathogens in the water, and the disinfected water is transported back to the aquaculture pool through the circulation pipe 54 to achieve the recycling of water nutrients: If it is necessary to clean the screen at the bottom of the filter frame 21, start the electric push rod 201, which is installed on the left side of the shell 1, and its telescopic end drives the brush plate 202 to move to clean the screen. If the filter frame 21 is to be replaced, first make the card rod 2003 withdraw from the card slot 2005. The card rod 2003 is installed in the cavity 2001 on both sides of the filter frame 21, and the extension and retraction are controlled by the spring 2002. After the card rod 2003 is withdrawn, the filter frame 21 can be removed from the fixed frame 2004 for cleaning or replacement.

[0046] In summary, the aquaculture water nutrient recycling device, by setting different aperture screens in the treatment box 2, the suspended filter material layer 31, the sedimentation filter material layer 32 and the pebble support layer 33 in the reaction box 3, can efficiently intercept and remove large particles of impurities, organic debris, etc. in the water body, and at the same time utilize the metabolic action of microorganisms to transform harmful substances such as ammonia nitrogen in the water body, significantly improving the water quality. At the same time, the design of the stirring component 35 enables the water body to be evenly distributed, improves the uniformity of dissolved oxygen, and facilitates the metabolic activity of microorganisms.

[0047] Moreover, by setting up water quality sensors and pH sensors 602, the water condition can be monitored in real time, and the water quality can be automatically adjusted according to the monitoring results. For example, according to abnormal changes in the values, the output power of the aerator 36 can be increased, or the ratio of the entering chemicals and sewage can be increased, etc., so as to ensure the stability of the water environment and meet the growth needs of the cultured organisms.

[0048] Furthermore, the treated water enters the sedimentation tank 4 for further purification. The precipitated sludge and other substances are rich in nutrients and can be recycled as organic fertilizer. At the same time, the ultraviolet disinfection lamp 51 and the ozone generator 52 in the disinfection box 5 can kill pathogens in the water and ensure the safety of the water. The treated water is transported back to the aquaculture pool through the circulation pipe 54, realizing the recycling of nutrients and reducing resource waste.

[0049] At the same time, by providing the cleaning component 22 and the fixing component 23, the filter frame 21 can be cleaned and replaced conveniently.

[0050] In a second aspect of the present invention, there is provided an aquaculture water utilization system, comprising:

[0051] An aquaculture water body, wherein the aquaculture water body comprises a suction pump for discharging impurities in the water body;

[0052] A water recycling device, comprising a controller, a treatment tank 2, a reaction tank 3, a sedimentation tank 4, and a disinfection tank 5. Multiple water recycling devices are connected in series. The water pumped by the suction pump enters the water recycling device, enters the treatment tank 2, and is discharged from the disinfection tank 5.

[0053] The water quality detection device includes a connecting pipe 601, a valve and a water quality detector. The water quality detection device is connected to multiple water recycling devices for detection respectively until the water quality meets the requirements and then outputs it.

[0054] Specifically, the difference from the first aspect is that the system structure of the second aspect is a water utilization system based on the device of the first aspect. That is, when aquaculture water is heavily polluted and the impact of aquaculture on the water is complex, and the filtration limit of a single water recycling device cannot ensure that the water meets the standards, at this time, two or more water recycling devices can be connected in series, and their own controllers can be connected to the water quality detection device.

[0055] The controller mainly includes a hard disk module and an MCU microcontroller module, which mainly stores pH value information and water quality information, and uniformly transmits the information to the water quality detection device; when the water of a water recycling device meets the target requirements after pre-filtration, the water quality detector will conduct a second sampling test, and the water recycling device here will output information to the water quality detection device for cross-comparison. When the water quality meets the standard, the water quality detection device will disable the subsequent water recycling device and only open the connecting pipe 601 to allow the water recycling device here to output the qualified water to the aquaculture water body for internal circulation, and close the subsequent connected water recycling devices to achieve the technical effect of green energy saving of the overall system; if the standard is not met, the water here will enter the next water recycling device for filtration again.

[0056] The overall system also forms information records based on the middle platform form of the water quality detection device, and can transmit the information to the main control room terminal and other equipment for a second time; the water quality detection device will also record the overall water quality trend to achieve a dynamic adjustment effect; for example, after multiple filtrations, when a part of the water recycling device enters the backwashing and cleaning stage using the brush plate 202, the water will pass through this part of the water recycling device through the connecting pipe 601, and continue to perform water quality filtration circulation operations according to the original number of cycles, to avoid the entire system being in a shutdown state when a single water recycling device is shut down.

[0057] The water quality detection device can also detect aquaculture water bodies based on water quality information. For example, within a certain period of time, if the number of cycles required by the water recycling device increases, the required dosage of medicine and the time required for sedimentation increase accordingly, and the amount of sedimented sludge increases, it can be regarded as an abnormal change in the aquaculture water body. The water quality detection device, as an intermediate agency, can send abnormal reports on aquaculture water bodies within the range to provide terminal judgment.

[0058] The water recycling device adopts a special systematic design, that is, the treatment box 2, the reaction box 3, the sedimentation box 4 and the disinfection box 5 form a process-type structure. Therefore, when building the system, multiple water recycling devices can be connected in series through a simple connecting pipe 601 and a valve structure, and the water filtered by the previous one can be directly transferred to the next water recycling device for secondary filtration; at the same time, the type of reagents, the amount of reagents added and the aeration time of each water recycling device can be output according to the requirements of different aquaculture water bodies. Not only can the agricultural wastewater discharged from multiple aquaculture water bodies be concentrated in the entire system for treatment, but the water bodies that have been treated by multiple different water recycling devices at different stages can also be output to different aquaculture water bodies respectively, realizing the technical effect of unified management and separate output.

[0059] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for recycling nutrients in aquaculture water, the device comprising a housing (1), characterized in that: The housing (1) contains: A treatment box (2), the treatment box (2) is located at the upper inner side of the housing (1), the treatment box (2) comprises a filter frame (21), a cleaning component (22) and a fixing component (23), and the treatment box (2) is used for pre-treating and screening out large particles of impurities in the water body; A reaction box (3), the reaction box (3) is located at the lower part of the treatment box (2), and the reaction box (3) and the treatment box (2) are connected. The reaction box (3) is provided with a suspended filter material layer (31), a sedimentation filter material layer (32) and a pebble support layer (33) in order from top to bottom. The bottom of the reaction box (3) is provided with a receiving chamber (34), and a stirring assembly (35) is installed inside the receiving chamber (34). The reaction box (3) is externally connected to an aerator (36), and the aerator (36) is used to provide dissolved oxygen to the reaction box (3). The reaction box (3) is used to receive water from the treatment box (2) and finely filter and mix to adjust the water quality. a sedimentation tank (4), the sedimentation tank (4) being installed adjacent to the reaction tank (3), and the sedimentation tank (4) and the reaction tank (3) being connected, and the sedimentation tank (4) being used to precipitate water discharged from the reaction tank (3); A disinfection box (5) is located on the upper part of the sedimentation box (4), and the disinfection box (5) and the sedimentation box (4) are connected. The disinfection box (5) includes an ultraviolet disinfection lamp (51) and an ozone generator (52) inside. The disinfection box (5) is used to disinfect water.

2. The aquaculture water nutrient recycling device according to claim 1, characterized in that: The filter frames (21) are arranged vertically, and there are at least two filter frames (21). The cleaning assembly (22) is located at the left end of the filter frame (21) and extends to the surface of the housing (1). Fixing assemblies (23) are installed on both sides of the filter frame (21).

3. The aquaculture water nutrient recycling device according to claim 2, characterized in that: The cleaning assembly (22) comprises an electric push rod (201), the electric push rod (201) is located at the lower side of the filter frame (21), the electric push rod (201) is divided into a first push rod (2011) and a second push rod (2012), the first push rod (2011) is located at the upper side, a blade plate (204) is installed at the end of the first push rod (2011), a brush plate (202) is installed at the end of the second push rod (2012), and guide rods (203) are installed on both sides of the blade plate (204) and the brush plate (202).

4. The aquaculture water nutrient recycling device according to claim 3, characterized in that: A cavity (2001) is provided on the inner side of the fixing assembly (23); a spring (2002) is fixedly installed on the inner wall of the cavity (2001); a clamping rod (2003) is fixedly installed on one end of the spring (2002) and is slidably connected to the inner wall of the wall; a fixing frame (2004) is installed on the inner wall of the processing box (2), and the fixing frame (2004) is located on both sides of the filter frame (21); a clamping groove (2005) corresponding to the position of the clamping rod (2003) is provided on the side of the fixing frame (2004) close to the cavity (2001).

5. The aquaculture water nutrient recycling device according to claim 1 or 4, characterized in that: The top of the housing (1) is provided with a water inlet pipe connected to the treatment box (2), a connecting pipe (601) is provided between the treatment box (2) and the reaction box (3), the rear side of the housing (1) is provided with a liquid suction pump (603) connected to the reaction box (3) and the sedimentation box (4), water quality sensors are provided at the water inlets of the connecting pipe (601) and the liquid suction pump (603), and the rear side of the housing (1) is provided with a liquid suction pump (604) connected to the sedimentation box (4) and the disinfection box (5).

6. The aquaculture water nutrient recycling device according to claim 5, characterized in that: A pH sensor (602) is provided on the top of the reaction box (3), a box body (37) is provided on the left side of the housing (1), a feeding pipe (605) is provided between the box body (37) and the reaction box (3), and a valve body (606) is provided on the feeding pipe (605).

7. The aquaculture water nutrient recycling device according to claim 4, characterized in that: Two backwash pipes (38) are provided inside the reaction box (3), and one end of each of the two backwash pipes (38) extends to the left side of the shell (1) and is connected to a water diversion pipe.

8. The aquaculture water nutrient recycling device according to claim 1, characterized in that: The front side of the housing (1) is provided with a sealed door, the sealed door is provided with a transparent window, and the top right side of the housing (1) is provided with a controller; the rear side of the disinfection box (5) is provided with a circulation pipe (54).

9. The aquaculture water nutrient recycling device according to claim 3, characterized in that: A screen is provided at the bottom of the filter frame (21), and the blade plate (204) and the brush plate (202) are both in contact with the bottom of the screen.

10. An aquaculture water utilization system, characterized in that: include: An aquaculture water body, wherein the aquaculture water body comprises a suction pump for discharging impurities in the water body; A water recycling device, comprising a controller, a treatment tank (2), a reaction tank (3), a sedimentation tank (4), and a disinfection tank (5), wherein a plurality of the water recycling devices are connected in series, and the water pumped out by the suction pump enters the water recycling device, enters from the treatment tank (2), and is discharged from the disinfection tank (5); A water quality detection device comprises a connecting pipe (601), a valve and a water quality detector. The water quality detection device is connected to a plurality of water recycling devices for detection respectively, and outputs the water quality after the water quality meets the requirements.

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