Aquaculture tail water treatment device for comprehensive utilization of fishers and farmers

Abstract

The invention relates to the technical field of aquaculture tail water treatment devices, in particular to an aquaculture tail water treatment device comprehensively utilized by fishers.The aquaculture tail water treatment device comprises a culture pond and a rice field body, the interior of the culture pond is divided into a storage cavity and a culture cavity, and rails are arranged on the two side walls in the culture cavity at equal intervals; an algae apron carrier body is further arranged in the culture cavity, the algae apron carrier body is in sliding fit with the track, filamentous algae are further cultured on the algae apron carrier body, and a first drainage pipe for enabling tail water treated in the culture pond to flow into the rice field body is further connected between the culture pond and the rice field body; the rice field body is further connected with a second drainage pipe used for draining water. The culture pond is arranged, the algae apron carrier body is detachably arranged in the culture pond, filamentous algae are planted on the algae apron carrier body, and nutrient substances in water are absorbed through growth of the filamentous algae, so that the purpose of purifying water is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture tail water treatment devices, in particular to an aquaculture tail water treatment device for comprehensive utilization of fishery and agriculture. Background Art

[0002] Aquaculture tailwater pollution is a typical problem of non-point source pollution. The main pollutants in tailwater are ammonia nitrogen, nitrite, organic matter, phosphorus and fouling organisms. If tailwater is not treated in a timely and effective manner, it will not only deteriorate the environment of aquaculture waters, but also cause outbreaks of diseases among fish, shrimps and crabs, and even large-scale deaths.

[0003] At present, in order to ensure that the water quality indicators of aquaculture tailwater in my country meet the discharge standards of "Freshwater Pond Aquaculture Water Discharge Requirements" (SCT9101-2007), the "three pools and two dams" purification system treatment process is generally adopted. It is discharged into rivers or recycled and reused in fish ponds. "Three pools and two dams" refers to sedimentation tank + filter dam + aeration tank + filter dam + artificial wetland. The suspended matter in the sewage is intercepted by the sedimentation tank and two filter dams; the aeration tank increases the dissolved oxygen in the water and accelerates the oxidation and decomposition of organic pollutants; the artificial wetland is located at the back end of the tailwater treatment facility, and aquatic plants at different nutrient levels are used to remove water pollutants. This treatment method is basically physical precipitation and chemical degradation. Although the physical precipitation method can effectively remove some suspended matter, it is not effective in removing dissolved nutrients; the chemical flocculation method may introduce new chemical substances, causing secondary pollution to the ecological environment. Summary of the invention

[0004] The purpose of the present invention is to provide an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture. A culture pool is provided, in which an algae lawn carrier body is detachably provided. Filamentous algae are planted on the algae lawn carrier body, and nutrients in the water are absorbed through the growth of the filamentous algae to achieve the purpose of water purification.

[0005] In order to solve the problems of the prior art, the present invention provides an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture, comprising a culture pond and a rice field body, the interior of the culture pond is divided into a storage chamber and a culture chamber, tracks are equidistantly arranged on the two side walls of the culture chamber, an algae lawn carrier body is also arranged inside the culture chamber, the algae lawn carrier body is slidably matched with the track, filamentous algae are also cultured on the algae lawn carrier body, a first drain pipe for flowing the treated tailwater in the culture pond into the rice field body is connected between the culture pond and the rice field body, a second drain pipe for drainage is also connected to the rice field body, and an algae lawn carrier taking and placing component for automatically extracting the algae lawn carrier body and cleaning the filamentous algae on the algae lawn carrier body is also arranged on the culture pond.

[0006] Preferably, the algae lawn carrier picking and placing assembly includes a movable frame capable of reciprocating along the length direction of the culture tank, the algae lawn carrier picking and placing assembly also includes a first driving mechanism for driving the movable frame to move, the top of the algae lawn carrier picking and placing assembly is also provided with an algae lawn carrier lifting assembly for extracting the algae lawn carrier body from the culture tank, both sides of the movable frame are also provided with algae lawn carrier cleaning assemblies for cleaning the filamentous algae on the algae lawn carrier body, and the algae lawn carrier picking and placing assembly also includes a water spray assembly for flushing the filamentous algae on the algae lawn carrier body.

[0007] Preferably, the algae lawn carrier cleaning assembly includes two groups of scrapers that can contact the surface of the algae lawn carrier body, and a connecting rod is also connected to the center position of the scraper. The scraper can swing on the surface of the algae lawn carrier body to scrape off the filamentous algae on the algae lawn carrier body. The algae lawn carrier cleaning assembly also includes a second driving mechanism for driving the scraper to swing back and forth.

[0008] Preferably, the water spray assembly includes two groups of connecting frames respectively arranged on both sides of the movable frame, and a nozzle is rotatably arranged on the connecting frame. A plurality of nozzles for spraying water are also arranged on the side of the nozzle close to the algae lawn carrier body. The water spray assembly also includes a third rotating driving member for driving the nozzle to rotate reciprocally, and the third rotating driving member is fixed on the connecting frame, and the output end of the third rotating driving member is connected to one end of the nozzle.

[0009] Preferably, the water spray assembly also includes a pump body arranged on the culture tank, the water inlet end of the pump body is connected to a second connecting pipe, one end of the second connecting pipe extends to the interior of the culture tank, the water outlet end of the pump body is connected to a first connecting pipe, one end of the first connecting pipe is connected to a diversion pipe, and one end of the diversion pipe is connected to the other end of the nozzle.

[0010] Preferably, the algae lawn carrier lifting assembly includes a telescopic driving member fixed at the top center position of the mobile frame, the output end of the telescopic driving member passes through the mobile frame and is connected to a lifting plate, and a plurality of clamps for clamping the algae lawn carrier body are also provided at the bottom of the lifting plate, and a camera is also provided at the bottom of the lifting plate.

[0011] Preferably, the algae lawn carrier lifting assembly also includes a guide rod vertically fixed on the top of the lifting plate, and the guide rod passes through the movable frame to enable the lifting plate to maintain linear motion.

[0012] Preferably, the second driving mechanism includes a worm gear rotatably arranged on the side of the movable frame, a transmission rod is eccentrically arranged on the worm gear, a cam is rotatably arranged on one end of the transmission rod, the cam is fixedly connected to an end of the connecting rod away from the scraper, and the second driving mechanism also includes a second rotating driving member fixed on the movable frame, the output end of the second rotating driving member is connected to a worm, and the worm and the worm wheel are meshed with each other.

[0013] Preferably, the first driving mechanism includes two guide rails respectively arranged on both sides of the culture tank and arranged along the length direction of the culture tank, and a rack is also arranged on the outer side of the guide rail. Through grooves are also opened on both sides of the guide rail along the length direction. The first driving mechanism also includes a guide wheel rotatably arranged at the bottom position of the mobile frame, and the guide wheel can roll in the through groove in the guide rail. The first driving mechanism also includes a first rotating driving member fixed on the outer side of the bottom end of the mobile frame, and the output end of the first rotating driving member is connected to a gear, and the gear and the rack are meshed with each other.

[0014] Preferably, the storage chamber inside the culture tank is detachably provided with a collecting bucket for collecting filamentous algae, the bottom of the collecting bucket is provided with microholes for water to flow out, and the top of the culture tank is also provided with a grille cover.

[0015] The beneficial effects of the present invention compared with the prior art are:

[0016] 1. The present invention sets a culture pool, and the algae lawn carrier body is detachably installed in the culture pool. Filamentous algae are cultured on the algae lawn carrier body, and the filamentous algae cells can secrete mucus, which is easy to attach and grow on the algae lawn carrier body. Compared with other algae, filamentous algae has stronger photosynthesis and growth metabolism ability, and has higher removal efficiency of nitrogen and phosphorus nutrients in water. The culture growth cycle of filamentous algae is about days. When the filamentous algae is in the exponential growth phase, it is placed in the culture pool. While the abundance of filamentous algae cells increases, pollutants such as nitrogen and phosphorus in the water body are consumed, thereby achieving the effect of reducing nitrogen and removing phosphorus in the water body. The treated water enters the rice field, where nitrogen is removed by rice synthesizing amino acids, proteins and other nitrogen-containing organic matter; root microorganisms realize nitrification-denitrification in anoxic and anaerobic environments. Phosphorus is removed by rice absorbing inorganic phosphorus and using it to synthesize lecithin, nucleic acid and ATP; at the same time, microorganisms perform normal assimilation and excessive accumulation of phosphorus; soil precipitation removes soluble phosphorus. Compared with the traditional "three ponds and two dams" process, the present invention has higher economic value, and the treatment process adopts physical and biological effects, without chemical treatment and does not pollute the environment, and has high treatment efficiency and does not affect the growth of aquatic products and rice.

[0017] 2. The present application can automatically lift the algae lawn carrier body out of the culture tank by setting a mobile frame and an algae lawn carrier lifting component. When the culture growth cycle of filamentous algae reaches about 20 days, the abundance of filamentous algae cells reaches a peak, and then enters a growth decline period, and the cell metabolites increase. In order to avoid excessive oxygen consumption by algae cells, resulting in a decrease in dissolved oxygen and an increase in ammonia nitrogen, the algae lawn carrier body needs to be pulled out of the culture tank at this time. The mobile frame moves back and forth on the culture tank, and the camera in the lifting plate detects that the clamp has reached the top of the algae lawn carrier body. The telescopic drive member moves the clamp down and clamps the algae lawn carrier body to pull it out of the culture tank. This process does not require manual operation by the staff, saving manpower and improving work efficiency.

[0018] 3. In order to scrape off the filamentous algae on the algae lawn carrier body, the present invention provides scrapers on both sides of the algae lawn carrier body. When the scrapers are driven by the second driving mechanism to swing back and forth, the filamentous algae on the algae lawn carrier body can be scraped off. In order to make the filamentous algae fall into the collection bucket, the present invention draws water into the nozzle, and the water is sprayed from the nozzle to flush the filamentous algae on the algae lawn carrier body. At the same time, the nozzle can rotate to ensure that the filamentous algae at various positions on the algae lawn carrier body can be flushed into the collection bucket. The collected filamentous algae can be used as raw materials for producing biofuels, agricultural fertilizers, and organic feeds, which has a certain economic value and turns waste into treasure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0020] Figure 2 It is a first stereoscopic structural schematic diagram of an algae lawn carrier taking and placing component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0021] Figure 3 The present invention is a schematic diagram of the top view of the structure of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture.

[0022] Figure 4 It is a second stereoscopic structural schematic diagram of an algae lawn carrier taking and placing component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of an algae lawn carrier lifting component, an algae lawn carrier cleaning component and a water spray component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of an algae lawn carrier lifting component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0025] Figure 7It is a partial structural schematic diagram of an algae lawn carrier cleaning component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0026] Figure 8 It is a side structural schematic diagram of an algae lawn carrier cleaning component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0027] Fig. 9 It is a first stereoscopic structural schematic diagram of a water spray component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0028] Fig.10 It is a second stereoscopic structural schematic diagram of a water spray component of an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to the present invention.

[0029] Fig.11 The invention is an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture Figure 7 Enlarged structural diagram at A in the middle.

[0030] The numbers in the figure are: 1, culture tank; 11, collection bucket; 12, algae lawn carrier body; 13, grille cover; 14, first drain pipe; 2, rice field body; 3, second drain pipe; 4, algae lawn carrier pick-up and placement assembly; 41, mobile frame; 42, first driving mechanism; 421, first rotating driving member; 4211, gear; 422, guide rail; 423, rack; 424, guide wheel; 43, algae lawn carrier lifting assembly; 431, telescopic driving member; 432, guide rod; 4311, lifting plate; 43 12. Clamp; 44. Algae floor carrier cleaning assembly; 441. Scraper; 4411. Connecting rod; 442. Second driving mechanism; 4421. Second rotating driving member; 4422. Worm; 4423. Worm wheel; 4424. Transmission rod; 4425. Cam; 45. Water spray assembly; 451. Spray pipe; 4511. Spray head; 452. Connecting frame; 4521. Third rotating driving member; 453. Diverter pipe; 4531. First connecting pipe; 454. Pump body; 4541. Second connecting pipe. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figure 1-Figure 11As shown, the present invention provides an aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture, including a culture pool 1 and a rice field body 2, the interior of the culture pool 1 is divided into a storage chamber and a culture chamber, tracks are equidistantly arranged on the two side walls of the culture chamber, an algae lawn carrier body 12 is also arranged inside the culture chamber, the algae lawn carrier body 12 slides with the track, filamentous algae are also cultured on the algae lawn carrier body 12, the track provides a stable sliding path for the algae lawn carrier body 12, which is convenient for the algae lawn carrier body 12 to move in the culture chamber and to take out the algae lawn carrier body 12, a first drain pipe 14 is also connected between the culture pool 1 and the rice field body 2 to flow the treated tailwater in the culture pool 1 into the rice field body 2, the rice field body 2 is used to receive the treated tailwater in the culture pool 1, to carry out further natural purification, and to absorb nutrients in the tailwater through the growth of rice, so as to realize the resource utilization of the tailwater. The rice field body 2 is also connected to a second drainage pipe 3 for drainage, and the culture pool 1 is also provided with an algae lawn carrier taking and placing component 4 for automatically extracting the algae lawn carrier body 12 and cleaning the filamentous algae on the algae lawn carrier body 12 .

[0033] The tail water first enters the storage chamber of the culture pool 1. In the culture chamber, the tail water flows through the filamentous algae on the algae lawn carrier body 12, and the nutrients are removed by the biological purification effect of the filamentous algae. The treated tail water flows into the rice field body 2 through the first drain pipe 14, and is further naturally purified by the growth of rice. The algae lawn carrier taking and placing component 4 regularly or as needed extracts the algae lawn carrier body 12 to clean the filamentous algae growing thereon to maintain its purification efficiency. The excess water in the rice field body 2 is discharged through the second drain pipe 3 to maintain the water level balance of the rice field.

[0034] Filamentous algae are cultivated on the algae lawn carrier body 12, and the filamentous algae cells can secrete mucus and are easy to attach and grow on the algae lawn carrier body 12. Compared with other algae, filamentous algae have stronger photosynthesis and growth metabolism capabilities, and are more efficient in removing nitrogen and phosphorus nutrients in water bodies. The cultivation and growth cycle of filamentous algae is about 10 days. When the filamentous algae is in the exponential growth phase, it is placed in the culture pool 1. As the abundance of filamentous algae cells increases, pollutants such as nitrogen and phosphorus in the water body are consumed, thereby achieving the effect of reducing nitrogen and phosphorus in the water body. The treated water enters the rice field body 2, where nitrogen is removed by synthesizing amino acids, proteins and other nitrogen-containing organic matter by rice; root microorganisms achieve nitrification-denitrification in anoxic and anaerobic environments. Phosphorus is removed by rice absorbing inorganic phosphorus and using it to synthesize lecithin, nucleic acids and ATP; at the same time, microorganisms perform normal assimilation and excessive accumulation of phosphorus; soil precipitation removes soluble phosphorus. Compared with the traditional "three pools and two dams" process, the present invention has higher economic value, and the treatment process adopts physical and biological effects without chemical treatment, and does not affect the growth of aquatic products and rice.

[0035] refer to Figure 2-Figure 5As shown, the algae lawn carrier picking and placing component 4 includes a movable frame 41 that can reciprocate along the length direction of the culture tank 1, and the algae lawn carrier picking and placing component 4 also includes a first driving mechanism 42 for driving the movable frame 41 to move. The top of the algae lawn carrier picking and placing component 4 is also provided with an algae lawn carrier lifting component 43 for extracting the algae lawn carrier body 12 from the culture tank 1, and both sides of the movable frame 41 are also provided with algae lawn carrier cleaning components 44 for cleaning the filamentous algae on the algae lawn carrier body 12. The algae lawn carrier picking and placing component 4 also includes a water spray component 45 for flushing the filamentous algae on the algae lawn carrier body 12.

[0036] When it is necessary to clean the filamentous algae on the algae lawn carrier body 12, the first driving mechanism 42 is started, and the first driving mechanism 42 drives the mobile frame 41 to move to the target position along the length direction of the culture tank 1. The algae lawn carrier lifting component 43 is started to vertically extract the algae lawn carrier body 12 from the culture chamber. And the algae lawn carrier body 12 is moved to the top of the storage chamber, and the algae lawn carrier cleaning component 44 starts to work to clean the filamentous algae on the algae lawn carrier body 12. At the same time, the water spraying component 45 sprays water on the algae lawn carrier body 12 to assist the cleaning process. After the cleaning is completed, the algae lawn carrier lifting component 43 puts the algae lawn carrier body 12 back into the culture chamber, and the mobile frame 41 returns to the initial position or moves to the next target position, ready for the next cleaning operation.

[0037] refer to Figure 7 , Figure 8 and Fig.11 As shown, the algae lawn carrier cleaning component 44 includes two groups of scrapers 441 that can contact the surface of the algae lawn carrier body 12. A connecting rod 4411 is also connected to the center position of the scraper 441. The scraper 441 can swing on the surface of the algae lawn carrier body 12 to scrape off the filamentous algae on the algae lawn carrier body 12. The algae lawn carrier cleaning component 44 also includes a second driving mechanism 442 for driving the scraper 441 to swing back and forth.

[0038] When the second driving mechanism 442 is started, the second driving mechanism 442 drives the scraper 441 to swing back and forth on the surface of the algae lawn carrier body 12 through the connecting rod 4411. The swinging motion of the scraper 441 contacts the surface of the algae lawn carrier body 12 and scrapes off the filamentous algae attached thereto. During the cleaning process, the water spraying assembly 45 can spray water to the algae lawn carrier body 12 to soften the attachment between the filamentous algae and the carrier, making the cleaning of the scraper 441 easier and more efficient. After the cleaning is completed, the second driving mechanism 442 stops working, and the scraper 441 returns to the initial position, ready for the next cleaning operation.

[0039] The second driving mechanism 442 includes a worm gear 4423 rotatably arranged on the side of the movable frame 41, a transmission rod 4424 is eccentrically rotatably arranged on the worm gear 4423, a cam 4425 is rotatably arranged on one end of the transmission rod 4424, the cam 4425 is fixedly connected to one end of the connecting rod 4411 away from the scraper 441, and the second driving mechanism 442 also includes a second rotating driving member 4421 fixed on the movable frame 41, the output end of the second rotating driving member 4421 is connected to the worm 4422, and the worm 4422 and the worm gear 4423 are meshed with each other.

[0040] When the second rotary drive member 4421 is started, the second rotary drive member 4421 drives the worm 4422 to rotate. The rotational motion of the worm 4422 is transmitted to the worm wheel 4423 through meshing, so that the worm wheel 4423 rotates on the side of the mobile frame 41. The rotation of the worm wheel 4423 causes the transmission rod 4424 to swing eccentrically thereon, thereby driving the cam 4425 to move. The movement of the cam 4425 is converted into the reciprocating swing of the scraper 441 on the algae platform carrier body 12 through the connecting rod 4411, thereby realizing the cleaning of the filamentous algae. This design utilizes the characteristics of deceleration and change of transmission direction of the worm 4422 and the worm wheel 4423 transmission, as well as the movement of the cam 4425, so that the scraper 441 can swing on the algae platform carrier body 12 in a stable and continuous manner, effectively cleaning the filamentous algae. At the same time, since the transmission of the worm 4422 and the worm wheel 4423 has a large reduction ratio and self-locking characteristics, this design also has high reliability and stability.

[0041] refer to Fig. 9 and Fig.10 As shown, the water spray assembly 45 includes two groups of connecting frames 452 respectively arranged on both sides of the movable frame 41, and a nozzle 451 is rotatably arranged on the connecting frame 452. A plurality of nozzles 4511 for spraying water are also arranged on the side of the nozzle 451 close to the algae lawn carrier body 12. The water spray assembly 45 also includes a third rotating driving member 4521 for driving the nozzle 451 to rotate reciprocally. The third rotating driving member 4521 is fixed on the connecting frame 452, and the output end of the third rotating driving member 4521 is connected to one end of the nozzle 451.

[0042] When the third rotary drive member 4521 is started, the third rotary drive member 4521 drives the nozzle 451 to reciprocate on the connecting frame 452. The rotation of the nozzle 451 causes the nozzle 4511 provided thereon to spray water to clean the algae lawn carrier body 12 at a certain angle and range. Since the nozzle 451 can reciprocate, the spraying direction of the nozzle 4511 can also be changed accordingly, thereby achieving comprehensive cleaning of the surface of the algae lawn carrier body 12. This design not only improves the cleaning efficiency, but also ensures the uniformity and thoroughness of the cleaning.

[0043] The water spray assembly 45 also includes a pump body 454 arranged on the culture tank 1, the water inlet end of the pump body 454 is connected to the second connecting pipe 4541, one end of the second connecting pipe 4541 extends to the interior of the culture tank 1, the water outlet end of the pump body 454 is connected to the first connecting pipe 4531, one end of the first connecting pipe 4531 is connected to the diversion pipe 453, and one end of the diversion pipe 453 is connected to the other end of the nozzle 451.

[0044] When the pump body 454 is started, the pump body 454 draws water from the culture pool 1 through the second connecting pipe 4541, and after pressurizing the water, delivers it to the diverter pipe 453 through the first connecting pipe 4531. The diverter pipe 453 evenly distributes the pressurized water to each nozzle 451. The nozzle 451 reciprocates on the connecting frame 452 under the drive of the third rotating driving member 4521, and the nozzle 4511 provided on the nozzle 451 sprays water to clean the algae lawn carrier body 12 at a certain angle and range.

[0045] When the scraper 441 is driven by the second driving mechanism 442 to swing back and forth, the filamentous algae on the algae lawn carrier body 12 can be scraped off. In order to make the filamentous algae fall into the collection bucket 11, the present invention draws water into the nozzle 451, and the water is sprayed from the nozzle 4511 to flush the filamentous algae on the algae lawn carrier body 12. At the same time, the nozzle 451 can rotate to ensure that the filamentous algae at various positions on the algae lawn carrier body 12 can be flushed into the collection bucket 11.

[0046] refer to Figure 5 and Figure 6 As shown, the algae lawn carrier lifting assembly 43 includes a telescopic driving member 431 fixed at the top center position of the moving frame 41, the output end of the telescopic driving member 431 passes through the moving frame 41 and is connected to a lifting plate 4311, and a plurality of clamps 4312 for clamping the algae lawn carrier body 12 are also arranged at the bottom of the lifting plate 4311, and a camera is also arranged at the bottom of the lifting plate 4311.

[0047] When it is necessary to take out the algae ping carrier body 12, the telescopic drive member 431 is started and drives the lifting plate 4311 to move in the vertical direction. The lifting plate 4311 drives the clamping jaws 4312 to move together. When the clamping jaws 4312 are close to the algae ping carrier body 12, the clamping jaws 4312 clamp the algae ping carrier body 12 through the opening and closing action. The telescopic drive member 431 continues to drive the lifting plate 4311 to rise and move the algae ping carrier body 12 to a predetermined position. During the whole process, the camera can shoot the clamping jaws 4312 in real time so that the clamping jaws 4312 can accurately locate the position of the algae ping carrier body 12.

[0048] The algae lawn carrier lifting assembly 43 also includes a guide rod 432 vertically fixed on the top of the lifting plate 4311. The guide rod 432 passes through the movable frame 41 to enable the lifting plate 4311 to maintain linear motion.

[0049] refer to Figure 4-Figure 6 As shown, the first driving mechanism 42 includes two guide rails 422 respectively arranged on both sides of the culture tank 1 and arranged along the length direction of the culture tank 1, and a rack 423 is also arranged on the outer side of the guide rail 422. Through grooves are also opened on both sides of the guide rail 422 along its length direction. The first driving mechanism 42 also includes a guide wheel 424 rotatably arranged at the bottom position of the moving frame 41, and the guide wheel 424 can roll in the through groove in the guide rail 422. The first driving mechanism 42 also includes a first rotating driving member 421 fixed to the outer side of the bottom end of the moving frame 41, and the output end of the first rotating driving member 421 is connected to a gear 4211, and the gear 4211 and the rack 423 are meshed with each other.

[0050] When the first rotary drive member 421 is started, the first rotary drive member 421 drives the gear 4211 to rotate. The rotary motion of the gear 4211 is converted into the linear motion of the mobile frame 41 on the guide rail 422 through the meshing relationship with the rack 423. At the same time, the guide wheel 424 rolls in the through groove of the guide rail 422 to reduce friction and provide a guiding function, so that the mobile frame 41 can stably move along the length direction of the culture tank 1.

[0051] During use, in order to prevent excessive oxygen consumption by algae cells, resulting in a decrease in dissolved oxygen and an increase in ammonia nitrogen, the algae lawn carrier body 12 needs to be extracted from the culture pool 1. The mobile frame 41 moves back and forth on the culture pool 1, and after the camera in the lifting plate 4311 detects that the clamping claw 4312 reaches the top of the algae lawn carrier body 12, the telescopic driving member 431 moves the clamping claw 4312 downward and clamps the algae lawn carrier body 12, and extracts it from the culture pool 1. This process does not require manual operation by the staff, saving manpower and improving work efficiency.

[0052] The storage chamber inside the culture tank 1 is detachably provided with a collecting bucket 11 for collecting filamentous algae. The bottom of the collecting bucket 11 is provided with microholes for water to flow out. The top of the culture tank 1 is also provided with a grille cover 13.

[0053] The main function of the collecting hopper 11 is to collect the filamentous algae for subsequent processing and recycling. The bottom of the collecting hopper 11 is provided with micropores, which allow water to flow out but can prevent the filamentous algae from passing through. The main function of the grille cover 13 is to prevent debris from entering the culture tank 1, while allowing air circulation to provide the necessary oxygen for the filamentous algae.

[0054] Working principle: The filamentous algae of the Chlorophyta is a type of attached algae suitable for algae lawn technology. Because its cells can secrete mucus, it is easy to attach and grow on the substrate of the algae lawn device platform. Compared with other algae, filamentous algae has stronger photosynthesis and growth metabolism ability, which makes it more efficient in removing nitrogen and phosphorus nutrients in the water body. The filamentous algae gradually accumulates on the platform from 0 to 10 days; from 10 to 15 days, the filamentous algae increases significantly; from 15 to 20 days, the cell abundance of filamentous algae remains basically stable; after 20 days, the cell abundance decreases to a certain extent. First, the filamentous algae is cultured in the culture pool 1. As the filamentous algae grows, its cell abundance gradually increases, and in the process, it consumes pollutants such as nitrogen and phosphorus in the water body, thereby achieving the effect of reducing nitrogen and phosphorus in the water body. The treated water is then introduced into the rice field body 2. In the paddy field 2, the removal of nitrogen is mainly accomplished by the synthesis of amino acids, proteins and other nitrogen-containing organic matter by rice; at the same time, root microorganisms realize nitrification-denitrification in anoxic and anaerobic environments. The removal of phosphorus is accomplished by the absorption of inorganic phosphorus by rice and its use in the synthesis of lecithin, nucleic acid and ATP, etc.; in addition, microorganisms also perform normal assimilation and excessive accumulation of phosphorus; at the same time, soil precipitation also helps to remove soluble phosphorus. When the growth cycle of filamentous algae reaches about 20 days, the abundance of filamentous algae cells reaches a peak value, and then the filamentous algae growth declines, and the cell metabolites increase immediately. At the same time, in order to avoid excessive oxygen consumption by filamentous algae cells, the dissolved oxygen decreases, and the ammonia nitrogen increases, the first rotating drive member 421 is started to rotate the gear 4211. Due to the meshing action of the gear 4211 and the rack 423, the movable frame 41 begins to move. At this time, the camera is used to detect whether the clamp 4312 reaches the top of the algae carrier body 12. When the clamp 4312 reaches the top of the algae lawn carrier body 12, the telescopic driving member 431 moves the clamp 4312 downward, clamps the algae lawn carrier body 12 and extracts it from the culture tank 1. Subsequently, the algae lawn carrier body 12 is moved above the collecting bucket 11. At this time, by starting the second rotating driving member 4421, the second rotating driving member 4421 drives the worm 4422 to rotate. The worm 4422 then drives the worm wheel 4423 to rotate, and the worm wheel 4423 rotates the cam 4425 through the movement of the transmission rod 4424. This series of transmission actions eventually causes the scraper 441 to scrape off the filamentous algae on the algae lawn carrier body 12. In order to further improve the collection efficiency of the filamentous algae, water is pumped from the culture tank 1 into the nozzle 451 by starting the pump body 454. The water is then sprayed out from the nozzle 4511 to flush the remaining filamentous algae on the algae lawn carrier body 12.In addition, the nozzle 451 can also rotate to ensure that the filamentous algae at various positions on the algae lawn carrier body 12 can be effectively flushed into the collecting bucket 11. The collected filamentous algae can be used as raw materials for producing biofuels, agricultural fertilizers, and organic feed, which has certain economic value and turns waste into treasure. This device adopts a combination of filamentous algae and rice treatment, which has certain economic value. The treatment process adopts physical and biological treatment without chemical treatment, does not affect the growth of aquatic products and rice fields, increases the diversity of biological phases, and enhances the system's resistance.

[0055] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture, characterized by: The invention comprises a culture pool (1) and a rice field body (2), wherein the culture pool (1) is divided into a storage chamber and a culture chamber, tracks are equidistantly arranged on both side walls of the culture chamber, an algae lawn carrier body (12) is arranged inside the culture chamber, the algae lawn carrier body (12) is slidably matched with the tracks, filamentous algae are also cultured on the algae lawn carrier body (12), a first drainage pipe (14) is connected between the culture pool (1) and the rice field body (2) for flowing treated tail water in the culture pool (1) into the rice field body (2), a second drainage pipe (3) for drainage is also connected to the rice field body (2), and an algae lawn carrier taking and placing component (4) for automatically extracting the algae lawn carrier body (12) and cleaning the filamentous algae on the algae lawn carrier body (12) is also arranged on the culture pool (1).

2. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 1 is characterized by: The algae lawn carrier placement component (4) comprises a movable frame (41) capable of reciprocating along the length direction of the culture tank (1), and the algae lawn carrier placement component (4) also comprises a first driving mechanism (42) for driving the movable frame (41) to move. The top of the algae lawn carrier placement component (4) is also provided with an algae lawn carrier lifting component (43) for extracting the algae lawn carrier body (12) from the culture tank (1). Algae lawn carrier cleaning components (44) for cleaning the filamentous algae on the algae lawn carrier body (12) are also provided on both sides of the movable frame (41). The algae lawn carrier placement component (4) also comprises a water spray component (45) for flushing the filamentous algae on the algae lawn carrier body (12).

3. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 2 is characterized by: The algae lawn carrier cleaning component (44) includes two groups of scrapers (441) that can contact the surface of the algae lawn carrier body (12), and the center position of the scraper (441) is also connected to a connecting rod (4411). The scraper (441) can swing on the surface of the algae lawn carrier body (12) to scrape off the filamentous algae on the algae lawn carrier body (12). The algae lawn carrier cleaning component (44) also includes a second driving mechanism (442) for driving the scraper (441) to swing back and forth.

4. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 2 is characterized by: The water spray assembly (45) includes two groups of connecting frames (452) respectively arranged on both sides of the movable frame (41), and a nozzle (451) is rotatably arranged on the connecting frame (452). A plurality of nozzles (4511) for spraying water are also arranged on one side of the nozzle (451) close to the algae lawn carrier body (12). The water spray assembly (45) also includes a third rotating driving member (4521) for driving the nozzle (451) to rotate reciprocatingly. The third rotating driving member (4521) is fixed on the connecting frame (452), and the output end of the third rotating driving member (4521) is connected to one end of the nozzle (451).

5. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 4 is characterized by: The water spray assembly (45) further comprises a pump body (454) arranged on the culture tank (1); the water inlet end of the pump body (454) is connected to a second connecting pipe (4541); one end of the second connecting pipe (4541) extends into the interior of the culture tank (1); the water outlet end of the pump body (454) is connected to a first connecting pipe (4531); one end of the first connecting pipe (4531) is connected to a shunt pipe (453); one end of the shunt pipe (453) is connected to the other end of the spray pipe (451).

6. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 4 is characterized by: The algae lawn carrier lifting component (43) includes a telescopic driving member (431) fixed at the top center position of the moving frame (41), the output end of the telescopic driving member (431) passes through the moving frame (41) and is connected to a lifting plate (4311), and a plurality of clamping claws (4312) for clamping the algae lawn carrier body (12) are also arranged at the bottom of the lifting plate (4311), and a camera is also arranged at the bottom of the lifting plate (4311).

7. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 4 is characterized by: The algae lawn carrier lifting assembly (43) also includes a guide rod (432) vertically fixed on the top of the lifting plate (4311), and the guide rod (432) passes through the movable frame (41) to enable the lifting plate (4311) to maintain linear motion.

8. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 3 is characterized by: The second driving mechanism (442) includes a worm wheel (4423) rotatably arranged on the side of the movable frame (41); a transmission rod (4424) is eccentrically rotatably arranged on the worm wheel (4423); a cam (4425) is rotatably arranged on one end of the transmission rod (4424); the cam (4425) is fixedly connected to an end of the connecting rod (4411) away from the scraper (441); the second driving mechanism (442) also includes a second rotating driving member (4421) fixed on the movable frame (41); the output end of the second rotating driving member (4421) is connected to a worm (4422); the worm (4422) and the worm wheel (4423) are meshed with each other.

9. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 3 is characterized by: The first driving mechanism (42) comprises two guide rails (422) respectively arranged on both sides of the culture tank (1) and arranged along the length direction of the culture tank (1); a rack (423) is also arranged on the outer side of the guide rail (422); through grooves are also opened on both sides of the guide rail (422) along the length direction; the first driving mechanism (42) also comprises a guide wheel (424) rotatably arranged at the bottom position of the movable frame (41); the guide wheel (424) can roll in the through groove in the guide rail (422); the first driving mechanism (42) also comprises a first rotating driving member (421) fixed on the outer side of the bottom end of the movable frame (41); the output end of the first rotating driving member (421) is connected to a gear (4211); the gear (4211) and the rack (423) are meshed with each other.

10. The aquaculture tailwater treatment device for comprehensive utilization of fishery and agriculture according to claim 3 is characterized by: The storage chamber inside the culture pond (1) is detachably provided with a collecting bucket (11) for collecting filamentous algae, the bottom of the collecting bucket (11) is provided with microholes for water to flow out, and the top of the culture pond (1) is also provided with a grille cover plate (13).

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