Aquaculture ecological circulation system

Abstract

The aquaculture ecological circulation system comprises an aquaculture area, a biological bait culture area, a crop planting area, a submerged plant culture area and a filtering and disinfecting area which are sequentially arranged according to the water flowing sequence and sequentially communicated through water pipes, and the filtering and disinfecting area is further communicated with the aquaculture area through a water pipe to form a circulating water channel; a fish fry raising area for raising fish fries from the fry stage to the juvenile stage is further arranged between the crop planting area and the submerged plant cultivation area. According to the aquaculture ecological circulation system, the fry raising area with the floating bridges and the water planting baskets is added in an existing circulation system, scattered feeding can be carried out according to the maturity degree of fishes, meanwhile, the crop planting area is supplemented and purified, the circulating water quality is further adjusted, organic matter in water is removed, the overall circulation utilization rate is higher, and the aquaculture effect is better. In addition, a large amount of land occupied by the submerged plant cultivation area can be reduced, and the economic benefit is higher.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture technology, specifically relating to an aquaculture ecological cycle system. Background Technology

[0002] With technological advancements and changes in the supply and demand system, large-scale, intelligent, and systematic development are clear future directions for the aquaculture industry. Therefore, aquaculture methods are gradually transitioning from privately contracted manual farming to large-scale, automated farming models planned by enterprises. For large-scale aquaculture, to ensure high efficiency, meet stringent environmental requirements, and maximize resource utilization, a comprehensive recycling system is often needed to support the aquaculture ponds, thereby preventing pollution and improving efficiency.

[0003] The patent document with authorization publication number "CN102835319B" discloses an ecological recirculating aquaculture system and a method for using the system for aquaculture. It utilizes multiple types of areas to form a circulating system to filter water quality, thus assisting in the internal circulation of water for aquaculture. However, it still has some shortcomings. First, the water flows directly into the submerged plant cultivation area after passing through the crop planting area. The submerged plant cultivation area requires multiple ponds for adsorption and filtration, which requires a large area. Furthermore, a large amount of organic matter and other feedable substances in the crop planting area cannot be absorbed by the submerged plants, resulting in nutrient waste and indirectly increasing aquaculture costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an aquaculture ecological cycle system that improves recycling rates, increases economic benefits, and reduces land occupation.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] This invention provides an aquaculture ecological cycle system, comprising an aquaculture area, a biological feed cultivation area, a crop planting area, a submerged plant cultivation area, and a filtration and disinfection area arranged sequentially according to water flow and connected by water pipes. The filtration and disinfection area is also connected to the aquaculture area through water pipes to form a circulating waterway. Between the crop planting area and the submerged plant cultivation area, there is a fry rearing area for raising fry to juvenile fish. The fry rearing area is divided into multiple rearing units by a net spanning the width of the fry rearing area. Each rearing unit is equipped with a floating bridge, and the floating bridge has a water-planting basket floating on the upper layer of the water. The bottom and sides of the water-planting basket have water passage holes, and emergent plants are planted in the water-planting basket.

[0007] Preferably, the floating bridge includes multiple bridge bodies spanning the fish fry rearing area and connecting beams located at both ends of the floating bridge. Each aquatic planting basket is located between two adjacent bridge bodies, and the connecting beams are fixedly connected to the ends of the bridge bodies. Each bridge body in the same floating bridge is fixedly connected by the connecting beams.

[0008] Preferably, the bottom of the water-planting basket is lined with a layer of gravel, and the roots of emergent plants are planted in the gravel layer. Specifically, the gravel layer is made of volcanic rock with a particle size larger than the diameter of the water passage holes in the water-planting basket.

[0009] Preferably, in the fish fry rearing area, the size of the fish fry in the multiple rearing units gradually increases from one end closer to the crop planting area to the other end according to the direction of water flow. After the fish fry in the end rearing unit reach maturity, they are harvested and transported to the aquaculture area.

[0010] Preferably, the bridge body has stepped sides extending outward from the bottom, and the top of the water-planting basket has an integrally formed outward-extending flange, with the flange of the water-planting basket mounted on the stepped side between two adjacent bridge bodies.

[0011] Preferably, the types of emergent plants in the water-planting basket are changed according to the season.

[0012] Preferably, the crop planting area is specifically a paddy field, in which rice is grown and shrimp and crabs are raised.

[0013] Preferably, the aquaculture area includes multiple aquaculture tanks connected in series or in parallel, in which fish from the juvenile to adult stages are raised.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The aquaculture ecological cycle system of this invention adds a fish fry rearing area with floating bridges and aquatic plant baskets to the existing cycle system. This allows for decentralized feeding based on the maturity of the fish, while also supplementing and purifying the crop planting area. It further regulates the quality of the circulating water and removes organic matter. The structure of the aquatic plant baskets and gravel layer also compensates for the difficulty in harvesting conventional aquatic plants. This ensures both the economic benefits of aquaculture and the effectiveness of water treatment while reducing the difficulty of harvesting. The overall recycling rate is higher, and the large amount of land occupied by the submerged plant cultivation area is reduced, resulting in higher economic benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a fish fry rearing area in an aquaculture ecological cycle system.

[0017] Figure 2 yes Figure 1 A schematic diagram showing the combination of the greywater planting basket and the floating bridge.

[0018] 1-Fish fry rearing area; 11-Resting unit; 2-Isolation net; 3-Floating bridge; 31-Bridge body; 32-Aquatic plant basket; 321-Gravel layer; 33-Connecting beam. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] Example

[0021] Please see Figures 1 to 2 An aquaculture ecological cycle system includes an aquaculture area, a live feed cultivation area, a crop planting area, a submerged plant cultivation area, and a filtration and disinfection area, arranged sequentially according to water flow and connected by water pipes. The filtration and disinfection area is also connected to the aquaculture area via water pipes to form a circulating waterway. Between the crop planting area and the submerged plant cultivation area, there is a fry rearing area 1 for raising fry to juvenile fish. The fry rearing area is divided into multiple rearing units 11 by a net spanning the width of the fry rearing area. Each rearing unit is equipped with a floating bridge 3, and each floating bridge has a water-planting basket 32 ​​floating on the upper layer of the water. The water-planting basket has drainage holes on its bottom and sides, and emergent plants are planted in the water-planting basket. The specific structure or aquaculture content of the live feed cultivation area and the filtration and disinfection area are basically consistent with those disclosed in the patent document with authorization publication number "CN102835319B", and will not be elaborated here. This application may also add an auxiliary aquaculture area and a fertilizer addition area, consistent with the above-mentioned public documents, after the biological feed cultivation area, according to actual needs.

[0022] The floating bridge 3 includes multiple bridge bodies 31 spanning the fish fry rearing area and connecting beams 33 located at both ends of the floating bridge. Each aquatic planting basket is located between two adjacent bridge bodies. The connecting beams are connected and fixed to the ends of the bridge bodies. Each bridge body in the same floating bridge is connected and fixed through the connecting beams.

[0023] The bottom of the water-planting basket 32 ​​is lined with a layer of gravel, and the roots of emergent plants are planted in the gravel layer. Specifically, the gravel layer is made of volcanic rock with a particle size larger than the diameter of the water passage holes in the water-planting basket.

[0024] In the fish fry rearing area 1, the size of the fish fry in the multiple rearing units 11 gradually increases from one end near the crop planting area to the other end according to the direction of water flow. After the fish fry in the end rearing unit reach maturity, they are harvested and transported to the aquaculture area.

[0025] The bridge body 31 has stepped shapes on both sides that extend outward from the bottom, and the top of the water-planting basket 32 ​​has an integrally formed outward-extending flange. The flange of the water-planting basket is mounted on the stepped side between two adjacent bridge bodies.

[0026] The types of emergent plants in the hydroponic basket 32 ​​change with the seasons. Specifically, emergent plants can include reeds, water celery, and other plants with medicinal value. These plants typically have roots in the soil, making harvesting difficult, hence their relatively low planting density and high economic value. In this application, however, they are planted in a layer of gravel, primarily volcanic rock, which is much easier to harvest than soil. Furthermore, these emergent plants can absorb residual organic matter from water that has passed through agricultural areas, further purifying the water.

[0027] The crop cultivation area is specifically a paddy field, where rice is grown and shrimp and crabs are raised. The water output from the biological feed cultivation area is rich in nutrients required by the paddy field-grown shrimp and crabs. These substances include fish excrement, which adult fish cannot consume but can be absorbed by the paddy field-grown shrimp and crabs.

[0028] The aquaculture area includes multiple breeding tanks connected in series or in parallel, which hold fish from the juvenile to adult stages.

[0029] The aquaculture ecological cycle system in this embodiment is mainly designed for the recycling of water in large-scale aquaculture. The water pipes used for circulation are primarily pre-buried or exposed cement pipes or corrugated pipes. Water flows automatically under the action of a water pump, and the flow rate is adjusted by other control systems as the water flows from the filtration and disinfection zone to the aquaculture zone. Since the feed available to fish fry varies at different growth stages, the fish fry rearing area supplements the aquaculture zone, while also supplementing the purification function of the crop planting area. The fish fry and emergent plants treat overflowing organic matter.

[0030] The beneficial effects of this invention are as follows: By adding a fish fry rearing area with a floating bridge and aquatic plant baskets to the existing circulation system, fish can be fed in a dispersed manner according to their maturity level. At the same time, it plays a supplementary and purifying role in the crop planting area, further regulating the circulating water quality and removing organic matter from the water. Meanwhile, the structure of the aquatic plant baskets and gravel layer can also make up for the difficulty in harvesting conventional aquatic plants, ensuring the economic benefits of aquaculture and the effect of water treatment while reducing the difficulty of harvesting. The overall recycling rate is higher, and it can also reduce the large amount of land occupied by the submerged plant cultivation area, resulting in higher economic benefits.

[0031] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. An aquaculture ecological cycle system, characterized in that, The system includes an aquaculture area, a biological feed cultivation area, a crop planting area, a submerged plant cultivation area, and a filtration and disinfection area, which are arranged in sequence according to the water flow and connected in sequence by water pipes. The filtration and disinfection area is also connected to the aquaculture area through water pipes to form a circulating waterway. Between the crop planting area and the submerged plant cultivation area, there is a fry rearing area (1) for raising fry from the larval stage to the juvenile stage. The fry rearing area is divided into multiple rearing units (11) by an isolation net (11) that spans the fry rearing area along the width of the fry rearing area. Each rearing unit is equipped with a floating bridge (3). The floating bridge is equipped with a water-planting basket (32) floating on the upper layer of the water. The bottom and sides of the water-planting basket have water passage holes, and emergent plants are planted in the water-planting basket.

2. The aquaculture ecological cycle system according to claim 1, characterized in that, The floating bridge (3) includes multiple bridge bodies (31) spanning the fish fry rearing area and connecting beams (33) located at both ends of the floating bridge. Each water planting basket is located between two adjacent bridge bodies. The connecting beams are connected and fixed to the ends of the bridge bodies. Each bridge body in the same floating bridge is connected and fixed through the connecting beams.

3. The aquaculture ecological cycle system according to claim 1, characterized in that, The bottom of the water-planting basket (32) is covered with a layer of gravel, and the roots of emergent plants are planted in the gravel layer. The gravel layer is made of volcanic rock with a particle size larger than the diameter of the water passage hole of the water-planting basket.

4. The aquaculture ecological cycle system according to claim 1, characterized in that, In the fish fry rearing area (1), the size of the fish fry in the multiple rearing units (11) gradually increases from one end near the crop planting area to the other end according to the direction of water flow. After the fish fry in the end rearing unit reach maturity, they are caught and transported to the aquaculture area.

5. The aquaculture ecological cycle system according to claim 2, characterized in that, The bridge body (31) has steps extending outward from the bottom on both sides, and the top of the water planter (32) is integrally formed with an outward-extending flange. The flange of the water planter is mounted on the step-shaped side between two adjacent bridge bodies.

6. The aquaculture ecological cycle system according to claim 1, characterized in that, The types of emergent plants in the water-planting basket (32) change with the seasons.

7. The aquaculture ecological cycle system according to claim 1, characterized in that, The crop planting area is specifically a paddy field, in which rice is grown and shrimp and crabs are raised.

8. The aquaculture ecological cycle system according to claim 1, characterized in that, The aquaculture area includes multiple breeding tanks connected in series or in parallel, which hold fish from the juvenile to adult stages.

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