Fishery and agriculture comprehensive utilization water product breeding tail water treatment device

Abstract

The application relates to the technical field of water culture tail water treatment devices, in particular to a fish and rice comprehensive utilization water culture tail water treatment device, which comprises a culture pond and a rice field body. The culture pond is internally divided into a storage cavity and a culture cavity. Track is equidistantly arranged on the two side walls in the culture cavity. An algal mat carrier body is further arranged in the culture cavity and is in sliding fit with the track. Filamentous algae are further cultured on the algal mat carrier body. A first drain pipe for flowing the treated tail water in the culture pond into the rice field body is further connected between the culture pond and the rice field body. A second drain pipe for draining water is further connected to the rice field body. The culture pond is provided with the algal mat carrier body which can be detachably arranged in the culture pond and has the filamentous algae planted thereon. The filamentous algae can absorb nutrients in water through growth, so that the water is purified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water aquaculture tail water treatment device, in particular to a fish and agriculture comprehensive utilization water aquaculture tail water treatment device. BACKGROUND

[0002] Water aquaculture tail water pollution is a typical problem of non-point source pollution. The main pollutants in tail water are ammonia nitrogen, nitrite, organic matter, phosphorus and fouling organisms. If tail water is not treated in time and effectively, it will not only deteriorate the environment of aquaculture water area, but also cause explosive diseases of fish, shrimp and crab, and even large-scale death.

[0003] At present, the aquaculture tail water in China is to ensure that the water quality index is stable to reach the discharge standard of Freshwater Pond Aquaculture Water Discharge Requirements (SCT9101-2007). The "three pools and two dams" purification system treatment process is generally used. It is discharged to the river or recycled to the fish pond for use. The "three pools and two dams" are sedimentation tank + filter dam + aeration tank + filter dam + artificial wetland. The suspended solids in the sewage are intercepted through the sedimentation tank and two filter dams. The aeration tank increases the dissolved oxygen in the water to speed up the oxidation and decomposition of organic pollutants. The artificial wetland is located at the rear end of the tail water treatment facility, and different trophic levels of aquatic plants are used to remove water pollutants. This treatment method is basically physical sedimentation and chemical agent degradation. Although the physical sedimentation method can effectively remove part of the suspended solids, it has poor removal effect on dissolved nutrients. The chemical flocculation method may introduce new chemicals, causing secondary pollution to the ecological environment. SUMMARY

[0004] The purpose of the present application is to provide a fish and agriculture comprehensive utilization water aquaculture tail water treatment device. A culture tank is arranged. An algal mat carrier body is detachably arranged in the culture tank. Filamentous algae are planted on the algal mat carrier body. The growth of the filamentous algae absorbs nutrients in the water to achieve the purpose of water purification.

[0005] To solve the problems in the prior art, the present application provides a fish and agriculture comprehensive utilization water aquaculture tail water treatment device, which comprises a culture tank and a rice field body. The culture tank is internally divided into a storage cavity and a culture cavity. Equidistant tracks are arranged on the two side walls inside the culture cavity. An algal mat carrier body is further arranged inside the culture cavity and is in sliding cooperation with the tracks. Filamentous algae are also cultured on the algal mat carrier body. A first drainage pipe is further connected between the culture tank and the rice field body to flow the treated tail water in the culture tank into the rice field body. A second drainage pipe is further connected to the rice field body for drainage. An algal mat carrier taking and placing assembly is further arranged on the culture tank to automatically extract the algal mat carrier body and clean the filamentous algae on the algal mat carrier body.

[0006] Preferably, the algal mat carrier taking and placing assembly comprises a moving frame capable of reciprocating along the length direction of the culture pond, and further comprises a first driving mechanism for driving the moving frame to move; the top of the algal mat carrier taking and placing assembly is further provided with an algal mat carrier lifting assembly for extracting the algal mat carrier body from the culture pond; the two sides of the moving frame are further provided with algal mat carrier cleaning assemblies for cleaning the filamentous algae on the algal mat carrier body; and the algal mat carrier taking and placing assembly further comprises a water spraying assembly for flushing the filamentous algae on the algal mat carrier body.

[0007] Preferably, the algal mat carrier cleaning assembly comprises two groups of scraper plates capable of contacting the surface of the algal mat carrier body, and the central positions of the scraper plates are further connected with connecting rods; the scraper plates are capable of swinging on the surface of the algal mat carrier body to scrape the filamentous algae on the algal mat carrier body; and the algal mat carrier cleaning assembly further comprises a second driving mechanism for driving the scraper plates to swing reciprocatingly.

[0008] Preferably, the water spraying assembly comprises two groups of connecting frames respectively arranged on the two sides of the moving frame, and the connecting frames are further provided with spray pipes rotatingly arranged thereon; the side of the spray pipe close to the algal mat carrier body is further provided with a plurality of spray heads for spraying water; the water spraying assembly further comprises a third rotary driving member for driving the spray pipe to rotate reciprocatingly, the third rotary driving member is fixed on the connecting frame, and the output end of the third rotary driving member is connected with one end of the spray pipe.

[0009] Preferably, the water spraying assembly further comprises a pump body arranged on the culture pond, the water inlet end of the pump body is connected with a second connecting pipe, one end of the second connecting pipe extends to the inside of the culture pond, the water outlet end of the pump body is connected with a first connecting pipe, one end of the first connecting pipe is connected with a shunt pipe, and one end of the shunt pipe is connected with the other end of the spray pipe.

[0010] Preferably, the algal mat carrier lifting assembly comprises an extension driving member fixed at the central position of the top of the moving frame, the output end of the extension driving member penetrates through the moving frame and is connected with a lifting plate, the bottom of the lifting plate is further provided with a plurality of clamping jaws for clamping the algal mat carrier body, and the bottom of the lifting plate is further provided with a camera.

[0011] Preferably, the algal mat carrier lifting assembly further comprises a guide rod vertically fixed on the top of the lifting plate, and the guide rod penetrates through the moving frame for keeping the lifting plate in linear motion.

[0012] Preferably, the second driving mechanism comprises a worm wheel rotatingly arranged on the side of the moving frame, an eccentric transmission rod is eccentrically arranged on the worm wheel, one end of the transmission rod is rotatingly provided with a cam, the cam is fixedly connected with the end of the connecting rod away from the scraper plate, and the second driving mechanism further comprises a second rotary driving member fixed on the moving frame, the output end of the second rotary driving member is connected with a worm, and the worm and the worm wheel are in meshing relationship.

[0013] Preferably, the first driving mechanism comprises two guide rails arranged at two sides of the culture pool and along the length direction of the culture pool, a rack is further arranged outside the guide rails, and a through slot is further arranged along the length direction of the two sides of the guide rails; the first driving mechanism further comprises a guide wheel rotatably arranged at the bottom of the moving frame, the guide wheel can roll in the through slot of the guide rail, and the first driving mechanism further comprises a first rotary driving member fixed at the outer side of the bottom end of the moving frame, the output end of the first rotary driving member is connected with a gear, and the gear is engaged with the rack.

[0014] Preferably, the storage cavity inside the culture pool is detachably provided with a collecting bucket for collecting filamentous algae, and a micropore for water outflow is arranged at the bottom of the collecting bucket; and a grating cover plate is further arranged at the top of the culture pool.

[0015] The present application has the following beneficial effects compared with the prior art:

[0016] 1. The culture pool is arranged, and the algal mat carrier body is detachably installed in the culture pool. The filamentous algae are cultured on the algal mat carrier body, and the filamentous algae cells can secrete slime and easily attach and grow on the algal mat carrier body. Compared with other algae, the filamentous algae have stronger photosynthesis and growth metabolism, and higher removal efficiency of nitrogen and phosphorus nutrients in water. The culture and growth period of the filamentous algae is about one day, and when the filamentous algae are in the exponential growth phase, they are placed in the culture pool. While the filamentous algae cell abundance increases, the nitrogen and phosphorus pollutants in the water are consumed, thereby realizing the effect of nitrogen and phosphorus removal of the water. The treated water enters the rice field body, and the nitrogen elements are removed by synthesizing amino acids, proteins and other nitrogen-containing organic matters by the rice; and the root microorganisms realize nitrification-denitrification in the anoxic and anaerobic environment. The phosphorus elements are removed by being absorbed by the rice as inorganic phosphorus and used for synthesizing lecithin, nucleic acid and ATP; at the same time, the microorganisms perform normal assimilation and excess accumulation of phosphorus; and the soil sedimentation removes the soluble phosphorus. Compared with the traditional "three-pool two-dam" process, the present application has high economic value, and the treatment process adopts physical and biological effects, does not pollute the environment by chemical treatment, has high treatment efficiency, and does not affect the growth of aquatic products and rice.

[0017] 2. The application sets up a moving frame and an algal mat carrier lifting assembly, which can automatically lift the algal mat carrier body out of the culture tank. When the cultivation and growth period of filamentous algae reaches about 20 days, the filamentous algae cell abundance reaches a peak, and then enters a growth recession period, and the cell metabolites increase. In order to avoid excessive consumption of oxygen by algal cells, leading to a decrease in dissolved oxygen and an increase in ammonia nitrogen, the algal mat carrier body needs to be lifted out of the culture tank at this time. Through the reciprocating movement of the moving frame on the culture tank, the camera in the lifting plate detects that the clamping jaw reaches the top of the algal mat carrier body, and then the telescopic driving part makes the clamping jaw move downward and clamps the algal mat carrier body, so as to lift it out of the culture tank. This process does not need manual operation of the staff, saves manpower, and improves work efficiency.

[0018] 3. In order to scrape the filamentous algae on the algal mat carrier body, the application sets up scraping plates on both sides of the algal mat carrier body. When the scraping plates are driven to reciprocate by the second driving mechanism, the filamentous algae on the algal mat carrier body can be scraped off. In order to make the filamentous algae fall into the collecting hopper, water is pumped into the spray pipe, and the water is sprayed from the spray head to flush the filamentous algae on the algal mat carrier body. At the same time, the spray pipe can rotate to ensure that the filamentous algae on each position of the algal mat carrier body can be flushed into the collecting hopper. The collected filamentous algae can be used as raw materials for producing biofuels, agricultural fertilizers and organic feed, and has certain economic value, which turns waste into treasure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of a fish and agriculture comprehensive utilization aquaculture tail water treatment device of the application.

[0020] Figure 2 is a first three-dimensional structure schematic diagram of an algal mat carrier taking and placing assembly of a fish and agriculture comprehensive utilization aquaculture tail water treatment device of the application.

[0021] Figure 3 is a top view structure schematic diagram of a fish and agriculture comprehensive utilization aquaculture tail water treatment device of the application.

[0022] Figure 4 is a second three-dimensional structure schematic diagram of an algal mat carrier taking and placing assembly of a fish and agriculture comprehensive utilization aquaculture tail water treatment device of the application.

[0023] Figure 5 is a three-dimensional structure schematic diagram of an algal mat carrier lifting assembly, an algal mat carrier cleaning assembly and a water spraying assembly of a fish and agriculture comprehensive utilization aquaculture tail water treatment device of the application.

[0024] Figure 6 is a three-dimensional structure schematic diagram of an algal mat carrier lifting assembly of a fish and agriculture comprehensive utilization aquaculture tail water treatment device of the application.

[0025] Figure 7It is the partial structure schematic view of algae lawn carrier cleaning assembly of fish and agriculture comprehensive utilization's aquaculture tail water treatment device of the application.

[0026] Figure 8 It is the side view structure schematic view of algae lawn carrier cleaning assembly of fish and agriculture comprehensive utilization's aquaculture tail water treatment device of the application.

[0027] Figure 9 It is the first three-dimensional structure schematic view of water spraying assembly of fish and agriculture comprehensive utilization's aquaculture tail water treatment device of the application.

[0028] Figure 10 It is the second three-dimensional structure schematic view of water spraying assembly of fish and agriculture comprehensive utilization's aquaculture tail water treatment device of the application.

[0029] Figure 11 It is the partial structure schematic view of algae lawn carrier cleaning assembly of fish and agriculture comprehensive utilization's aquaculture tail water treatment device of the application. Figure 7

[0030] The figure mark is: 1, culture pond;11, collection hopper;12, algae lawn carrier body;13, grating cover plate;14, first drain pipe;2, rice field body;3, second drain pipe;4, algae lawn carrier taking and placing assembly;41, moving frame;42, first driving mechanism;421, first rotary driving part;4211, gear;422, guide rail;423, rack;424, guide wheel;43, algae lawn carrier lifting assembly;431, telescopic driving part;432, guide rod;4311, lifting plate;4312, clamping jaw;44, algae lawn carrier cleaning assembly;441, scraper;4411, connecting rod;442, second driving mechanism;4421, second rotary driving part;4422, worm;4423, worm wheel;4424, transmission rod;4425, cam;45, water spraying assembly;451, spray pipe;4511, spray head;452, connecting frame;4521, third rotary driving part;453, shunt pipe;4531, first connecting pipe;454, pump body;4541, second connecting pipe. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means and achieved specific purposes and functions of the application, the application is described in further detail below in combination with the drawings and specific embodiments.

[0032] Reference Figures 1-11 ​As shown, the present application provides a fish and agricultural comprehensive utilization of aquaculture tail water treatment device, including culture pond 1 and paddy field body 2, culture pond 1 is divided into storage cavity and culture cavity, the inside two side walls of culture cavity are equidistantly provided with track, culture cavity is further provided with algal mat carrier body 12, algal mat carrier body 12 and track are slidably connected, algal mat carrier body 12 is further cultured with filamentous algae, track provides stable sliding path for algal mat carrier body 12, which is convenient for algal mat carrier body 12 to move in culture cavity, and algal mat carrier body 12 is convenient to take out, culture pond 1 and paddy field body 2 are further connected with first drain pipe 14, which is used to flow the treated tail water in culture pond 1 into paddy field body 2, paddy field body 2 is used to receive the treated tail water in culture pond 1, further natural purification is carried out, and nutrients in tail water are absorbed by the growth of rice, so that the resource utilization of tail water is realized. The second drain pipe 3 for draining is further connected to the paddy field body 2, and the algal mat carrier taking and placing assembly 4 for automatically taking out the algal mat carrier body 12 and cleaning the filamentous algae on the algal mat carrier body 12 is further arranged on the culture pond 1.

[0033] The tail water first enters the storage cavity of the culture pond 1, and in the culture cavity, the tail water passes through the filamentous algae on the algal mat carrier body 12, and removes the nutrients by using the biological purification effect of the filamentous algae. The treated tail water flows into the paddy field body 2 through the first drain pipe 14, and further natural purification is carried out by the growth of rice. The algal mat carrier taking and placing assembly 4 regularly or as needed takes out the algal mat carrier body 12 and cleans the filamentous algae growing thereon, so as to maintain the purification efficiency. The excess water in the paddy field body 2 is discharged through the second drain pipe 3, so as to maintain the water level balance of the paddy field.

[0034] The filamentous algae is cultured on the algal mat carrier body 12, and the filamentous algae cells can secrete mucus, which is easy to attach and grow on the algal mat carrier body 12. Compared with other algae, the filamentous algae has stronger photosynthesis and growth metabolism capacity, and higher removal efficiency of nitrogen and phosphorus nutrients in water. The culture and growth period of the filamentous algae is about 10 days, and the filamentous algae is placed in the culture pond 1 when it is in the exponential growth phase. The filamentous algae cells grow in abundance, which consumes the nitrogen and phosphorus pollutants in the water, so as to achieve the effect of nitrogen and phosphorus removal. The treated water enters the paddy field body 2, and the nitrogen elements are removed by synthesizing amino acids, proteins and other nitrogen-containing organic matters by the rice; the root microorganisms realize nitrification-denitrification in the anaerobic and anoxic environment. The phosphorus elements are removed by absorbing inorganic phosphorus by the rice and synthesizing lecithin, nucleic acid and ATP; at the same time, the microorganisms have normal assimilation and excess accumulation effects on phosphorus; the soil sedimentation removes the soluble phosphorus. Compared with the traditional "three ponds and two dams" process, the present application has higher economic value, and the treatment process uses physical and biological effects, without chemical treatment, which does not affect the growth of aquatic products and rice.

[0035] Reference Figures 2-5As shown in the figure, the algal mat carrier taking and placing assembly 4 comprises a moving frame 41 capable of reciprocating along the length direction of the culture tank 1, and a first driving mechanism 42 for driving the moving frame 41 to move. The top of the algal mat carrier taking and placing assembly 4 is also provided with an algal mat carrier lifting assembly 43 for extracting the algal mat carrier body 12 from the culture tank 1. The two sides of the moving frame 41 are also provided with an algal mat carrier cleaning assembly 44 for cleaning the filamentous algae on the algal mat carrier body 12. The algal mat carrier taking and placing assembly 4 further comprises a water spraying assembly 45 for flushing the filamentous algae on the algal mat carrier body 12.

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

[0037] Reference Figure 7 , Figure 8 and Figure 11 As shown in the figure, the algal mat carrier cleaning assembly 44 comprises two groups of scrapers 441 capable of contacting the surface of the algal mat carrier body 12. The center of the scraper 441 is also connected to a connecting rod 4411. The scraper 441 can swing on the surface of the algal mat carrier body 12 to scrape the filamentous algae on the algal mat carrier body 12. The algal mat carrier cleaning assembly 44 further comprises a second driving mechanism 442 for driving the scraper 441 to swing reciprocally.

[0038] When the second driving mechanism 442 is started, the second driving mechanism 442 drives the scraper 441 to swing reciprocally on the surface of the algal mat carrier body 12 through the connecting rod 4411. The swinging movement of the scraper 441 contacts the surface of the algal mat carrier body 12 to scrape the filamentous algae attached thereto. During the cleaning process, the water spraying assembly 45 can spray water on the algal mat 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 cleaning is completed, the second driving mechanism 442 stops working, and the scraper 441 returns to the initial position, preparing for the next cleaning operation.

[0039] The second driving mechanism 442 comprises a worm wheel 4423 rotatably arranged on the side of the moving frame 41, and an eccentric transmission rod 4424 rotatably arranged on the worm wheel 4423. One end of the transmission rod 4424 is rotatably arranged with a cam 4425, and the cam 4425 is fixedly connected to one end of the connecting rod 4411 away from the scraper 441. The second driving mechanism 442 further comprises a second rotary driving member 4421 fixedly arranged on the moving frame 41, and the output end of the second rotary driving member 4421 is connected with a worm 4422, which is in meshing engagement with the worm wheel 4423.

[0040] When the second rotary driving member 4421 is started, the second rotary driving member 4421 drives the worm 4422 to rotate. The rotary 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 moving frame 41. The rotation of the worm wheel 4423 causes the eccentric transmission rod 4424 to oscillate, which in turn drives the cam 4425 to move. The movement of the cam 4425 is converted into the reciprocating oscillation of the scraper 441 on the algal flat carrier body 12 through the connecting rod 4411, thereby achieving the cleaning of the filamentous algae. This design utilizes the characteristics of speed reduction 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 oscillate on the algal flat 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 speed reduction ratio and self-locking characteristics, this design also has high reliability and stability.

[0041] Referring to Figure 9 and Figure 10 As shown in the drawings, the water spraying assembly 45 comprises two groups of connecting frames 452 arranged on the two sides of the moving frame 41, and a spray pipe 451 rotatably arranged on the connecting frame 452. A plurality of spray heads 4511 for spraying water are arranged on one side of the spray pipe 451 close to the algal flat carrier body 12. The water spraying assembly 45 further comprises a third rotary driving member 4521 for driving the spray pipe 451 to rotate reciprocally, and the third rotary driving member 4521 is fixedly arranged on the connecting frame 452, and the output end of the third rotary driving member 4521 is connected with one end of the spray pipe 451.

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

[0043] The water spraying 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 with 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 with a first connecting pipe 4531, one end of the first connecting pipe 4531 is connected with a shunt pipe 453, one end of the shunt pipe 453 is connected with the other end of the spray pipe 451.

[0044] When the pump body 454 is started, the pump body 454 draws water from the culture tank 1 through the second connecting pipe 4541, and pressurizes the water and then delivers the water to the shunt pipe 453 through the first connecting pipe 4531. The shunt pipe 453 uniformly distributes the pressurized water into each spray pipe 451. The spray pipe 451 reciprocally rotates on the connecting frame 452 under the drive of the third rotary drive 4521, and the spray head 4511 arranged on the spray pipe 451 sprays water to the algal flat carrier body 12 at a certain angle and range.

[0045] When the scraper 441 is driven to reciprocally swing by the second drive mechanism 442, the filamentous algae on the algal flat carrier body 12 can be scraped off. In order to make the filamentous algae fall into the collection hopper 11, the present application draws water into the spray pipe 451, the water is sprayed out from the spray head 4511 to flush the filamentous algae on the algal flat carrier body 12. At the same time, the spray pipe 451 can rotate to ensure that the filamentous algae on each position of the algal flat carrier body 12 can be flushed into the collection hopper 11.

[0046] Reference Figure 5 and Figure 6 As shown in the figure, the algal flat carrier lifting assembly 43 comprises a telescopic drive 431 fixed at the top center position of the moving frame 41, the output end of the telescopic drive 431 penetrates through the moving frame 41 and is connected with a lifting plate 4311, the bottom of the lifting plate 4311 is further provided with a plurality of clamping jaws 4312 for clamping the algal flat carrier body 12, and the bottom of the lifting plate 4311 is further provided with a camera.

[0047] When the algal flat carrier body 12 needs to be taken out, the telescopic drive 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 approach the algal flat carrier body 12, the clamping jaws 4312 clamp the algal flat carrier body 12 through the opening and closing action. The telescopic drive 431 continues to drive the lifting plate 4311 to rise, and moves the algal flat carrier body 12 to a predetermined position. During the whole process, the camera can take pictures of the clamping jaws 4312 in real time, so that the clamping jaws 4312 can accurately position the position of the algal flat carrier body 12.

[0048] The algal flat carrier lifting assembly 43 further comprises a guide rod 432 vertically fixed at the top of the lifting plate 4311, the guide rod 432 penetrates through the moving frame 41 for keeping the lifting plate 4311 in straight line motion.

[0049] Reference Figures 4-6 As shown, the first driving mechanism 42 includes two guide rails 422 arranged on both sides of the culture pond 1 along the length direction of the culture pond 1, and a rack 423 is arranged outside the guide rail 422. The two sides of the guide rail 422 are also provided with a through slot along the length direction, the first driving mechanism 42 further includes a guide wheel 424 rotatably arranged at the bottom of the moving frame 41, the guide wheel 424 can roll in the through slot of the guide rail 422, and the first driving mechanism 42 further includes a first rotary driving member 421 fixed outside the bottom end of the moving frame 41, the output end of the first rotary driving member 421 is connected with a gear 4211, and the gear 4211 is meshed with the rack 423.

[0050] When the first rotary driving member 421 is started, the first rotary driving member 421 drives the gear 4211 to rotate. The rotary motion of the gear 4211 is converted into the linear motion of the moving frame 41 on the guide rail 422 through the meshing relationship with the rack 423, and at the same time, the guide wheel 424 rolls in the through slot of the guide rail 422, which reduces friction and provides guiding effect. So that the moving frame 41 can stably move along the length direction of the culture pond 1.

[0051] When in use, in order to avoid excessive consumption of oxygen by algal cells leading to a decrease in dissolved oxygen and an increase in ammonia nitrogen, the algal flat carrier body 12 needs to be pulled out of the culture pond 1. By reciprocating the moving frame 41 on the culture pond 1, the camera in the lifting plate 4311 detects that the clamping jaw 4312 reaches the top of the algal flat carrier body 12, and then the telescopic driving member 431 makes the clamping jaw 4312 move downward and clamps the algal flat carrier body 12, so as to pull it out of the culture pond 1. This process does not need to be manually operated by the staff, saving manpower and improving work efficiency.

[0052] The storage cavity inside the culture pond 1 is detachably provided with a collection bucket 11 for collecting filamentous algae, and the bottom of the collection bucket 11 is provided with micro-holes for water outflow. The top of the culture pond 1 is also provided with a grating cover plate 13.

[0053] The main function of the collection bucket 11 is to collect filamentous algae for subsequent processing and recycling. The bottom of the collection bucket 11 is provided with micro-holes, which allow water to flow out but prevent filamentous algae from passing through. The main function of the grating cover plate 13 is to prevent sundries from entering the culture pond 1, while allowing air to circulate and providing necessary oxygen for filamentous algae.

[0054] Working principle: filamentous algae of Chlorophyta is a kind 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, and compared with other algae, filamentous algae has stronger photosynthesis and growth metabolism, so it has higher removal efficiency of nitrogen and phosphorus nutrients in water. Filamentous algae gradually accumulates on the platform at 0-10d; at 10-15d, filamentous algae appears a substantial increase; at 15-20d, the cell abundance of filamentous algae basically remains stable; after 20d, 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 nitrogen, phosphorus and other pollutants in the water, thereby achieving the effect of nitrogen and phosphorus removal in the water. The treated water is then introduced into the rice field body 2. In the rice field body 2, the removal of nitrogen is mainly achieved by the synthesis of amino acids, proteins and other nitrogen-containing organic matter by rice; at the same time, the nitrification-denitrification effect of root microorganisms in the anaerobic and anoxic environment is achieved. The removal of phosphorus is achieved by the absorption of inorganic phosphorus by rice and the synthesis of lecithin, nucleic acids and ATP; in addition, microorganisms also have normal assimilation and excessive accumulation of phosphorus; at the same time, soil sedimentation also helps to remove soluble phosphorus. When the growth cycle of filamentous algae reaches about 20 days, the cell abundance of filamentous algae reaches the maximum peak value, and then the filamentous algae enters the growth recession period, and the cell metabolites increase. At the same time, in order to avoid excessive consumption of oxygen by filamentous algae cells, the dissolved oxygen decreases and the ammonia nitrogen increases, so the first rotary drive 421 is started to make the gear 4211 rotate. Due to the meshing action of the gear 4211 and the rack 423, the moving frame 41 starts to move. At this time, the camera is used to detect whether the clamping jaw 4312 reaches the top of the algae lawn carrier body 12. When the clamping jaw 4312 reaches the top of the algae lawn carrier body 12, the telescopic drive 431 makes the clamping jaw 4312 move down, clamps the algae lawn carrier body 12 and pulls it out of the culture pool 1. Then, the algae lawn carrier body 12 is moved to the upper side of the collection hopper 11. At this time, the second rotary drive 4421 is started to drive the worm 4422 to rotate. The worm 4422 further drives the worm wheel 4423 to rotate, and the worm wheel 4423 drives the cam 4425 to rotate through the movement of the transmission rod 4424. This series of transmission actions finally make the scraper 441 scrape the filamentous algae on the algae lawn carrier body 12. In order to further improve the collection efficiency of filamentous algae, the pump body 454 is started to pump water from the culture pool 1 into the spray pipe 451. The water is then sprayed out of the spray head 4511 to flush the remaining filamentous algae on the algae lawn carrier body 12.In addition, the spray pipe 451 can also rotate to ensure that the filamentous algae at each position on the algal mat carrier body 12 can be effectively flushed into the collection hopper 11, and the collected filamentous algae can be used as raw materials for producing biofuels and agricultural fertilizers, organic feed, and has certain economic value, turning waste into treasure. The device adopts a combination of filamentous algae and rice processing, has certain economic value, and the processing technology adopts physical and biological treatment, without chemical treatment, does not affect the growth of aquatic products and rice fields, increases the biodiversity of organisms, and strengthens the resistance of the system.

[0055] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A fishery and agriculture comprehensive utilization aquaculture effluent treatment device, characterized in that: The utility model relates to a kind of algae cultivation system, including culture pond (1) and rice field body (2), the inside of the culture pond (1) is divided into storage cavity and culture cavity, the inside of the culture cavity is equidistantly provided with track on two side walls, the inside of the culture cavity is further provided with algae lawn carrier body (12), algae lawn carrier body (12) and track sliding fit, filamentous algae are also cultivated on the algae lawn carrier body (12), the culture pond (1) and rice field body (2) are further connected with the first drain pipe (14) of the tail water in culture pond (1) after processing flows into in rice field body (2), the second drain pipe (3) for drainage is further connected on the rice field body (2), the culture pond (1) is further provided with the algae lawn carrier taking and placing assembly (4) for automatically extracting algae lawn carrier body (12) and cleaning down filamentous algae on algae lawn carrier body (12); The algae lawn carrier taking and placing assembly (4) includes a moving frame (41) that can move back and forth along the length of the culture pond (1), the algae lawn carrier taking and placing assembly (4) further includes a first drive mechanism (42) for driving the moving frame (41) to move, the top of the algae lawn carrier taking and placing assembly (4) is further provided with an algae lawn carrier lifting assembly (43) for extracting the algae lawn carrier body (12) from the culture pond (1), the two sides of the moving frame (41) are further provided with an algae lawn carrier cleaning assembly (44) for cleaning the filamentous algae on the algae lawn carrier body (12), the algae lawn carrier taking and placing assembly (4) further includes a water spraying assembly (45) for flushing the filamentous algae on the algae lawn carrier body (12) down; The algae lawn carrier cleaning assembly (44) includes two groups of scraper plates (441) that can contact the surface of the algae lawn carrier body (12), the center of the scraper plate (441) is further connected with a connecting rod (4411), the scraper plate (441) can swing on the surface of the algae lawn carrier body (12) to scrape the filamentous algae on the algae lawn carrier body (12) down, the algae lawn carrier cleaning assembly (44) further includes a second drive mechanism (442) for driving the scraper plate (441) to swing back and forth; The water spraying assembly (45) includes two groups of connecting frames (452) respectively arranged on the two sides of the moving frame (41), a spray pipe (451) is further rotatably arranged on the connecting frame (452), a plurality of spray heads (4511) for spraying water are further arranged on one side of the spray pipe (451) close to the algae lawn carrier body (12), the water spraying assembly (45) further includes a third rotary drive member (4521) for driving the spray pipe (451) to rotate back and forth, the third rotary drive member (4521) is fixed on the connecting frame (452), and the output end of the third rotary drive member (4521) is connected with one end of the spray pipe (451).

2. The device for treating tail water of aquaculture by fish and agriculture comprehensive utilization according to claim 1, characterized in that: The water spraying assembly (45) further comprises a pump body (454) arranged on the culture pond (1), a second connecting pipe (4541) is connected to the water inlet end of the pump body (454), one end of the second connecting pipe (4541) extends to the inside of the culture pond (1), a first connecting pipe (4531) is connected to the water outlet end of the pump body (454), one end of the first connecting pipe (4531) is connected with a shunt pipe (453), and the other end of the shunt pipe (453) is connected with the other end of the spray pipe (451).

3. The device according to claim 1, wherein the device is characterized by: The algae flat carrier lifting assembly (43) comprises a telescopic driving member (431) fixed at the top center of the moving frame (41), the output end of the telescopic driving member (431) penetrates through the moving frame (41) and is connected with a lifting plate (4311), and a plurality of clamping jaws (4312) for clamping the algae flat carrier body (12) are arranged at the bottom of the lifting plate (4311). A camera is arranged at the bottom of the lifting plate (4311).

4. The device according to claim 1, wherein the device is characterized by: The algae flat carrier lifting assembly (43) further comprises a guide rod (432) vertically fixed at the top of the lifting plate (4311), and the guide rod (432) penetrates through the moving frame (41) to enable the lifting plate (4311) to move linearly.

5. The device for treating fish farming tail water for fish and agriculture comprehensive utilization according to claim 1, characterized in that: The second driving mechanism (442) comprises a worm wheel (4423) rotatably arranged on the side of the moving frame (41), an eccentric transmission rod (4424) is arranged on the worm wheel (4423), one end of the transmission rod (4424) is rotatably provided with a cam (4425), the cam (4425) is fixedly connected with the end of the connecting rod (4411) away from the scraper (441), and the second driving mechanism (442) further comprises a second rotary driving member (4421) fixed on the moving frame (41). The output end of the second rotary driving member (4421) is connected with a worm (4422), and the worm (4422) and the worm wheel (4423) are meshed with each other.

6. The device for treating fish farming tail water for fish and agriculture comprehensive utilization according to claim 1, characterized in that: The first driving mechanism (42) comprises two guide rails (422) arranged on the two sides of the culture pond (1) and along the length direction of the culture pond (1), a rack (423) is further arranged outside the guide rail (422), and a through slot is further formed in the two sides of the guide rail (422) along the length direction thereof. The first driving mechanism (42) further comprises a guide wheel (424) rotatably arranged at the bottom position of the moving frame (41), the guide wheel (424) can roll in the through slot in the guide rail (422), and the first driving mechanism (42) further comprises a first rotary driving member (421) fixed at the outer side of the bottom end of the moving frame (41). The output end of the first rotary driving member (421) is connected with a gear (4211), and the gear (4211) and the rack (423) are meshed with each other.

7. The device according to claim 1, wherein the device is characterized by: A collecting bucket (11) for collecting filamentous algae is detachably arranged in the storage cavity in the culture pond (1), a plurality of micropores for water outflow are formed in the bottom of the collecting bucket (11), and a grating cover plate (13) is further arranged at the top of the culture pond (1). A collecting bucket (11) for collecting filamentous algae is detachably arranged in the storage cavity in the culture pond (1), a plurality of micropores for water outflow are formed in the bottom of the collecting bucket (11), and a grating cover plate (13) is further arranged at the top of the culture pond (1).

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