Mariculture underwater bait casting system

Abstract

The invention relates to an underwater bait casting system for mariculture, which comprises a storage bin, a weighing system, a feeder, a bait mixing device, a hydraulic driving device and an underwater conveying device, the bait mixing device comprises a mixing bin and a stirring device, and a feeding port valve and a discharging port valve are arranged at an inlet and an outlet of the mixing bin; the output end of the hydraulic driving device is divided into two paths, one path is connected with the side wall of the mixing bin in the tangential direction, and the other path is connected with a lower discharging pipe of the mixing bin; the underwater conveying device is provided with a conveying pipe with a conveying pump, one end of the conveying pipe is communicated with the lower discharging pipe, the other end of the conveying pipe is communicated with a feeding pipe, and a plurality of feeding nozzles are arranged on the two sides of the feeding pipe. According to the underwater fish feeding device, bait is uniformly fed at a specific depth underwater, fishes can be prevented from gathering due to water surface ingestion, the balance of dissolved oxygen in a water body is favorably maintained, the water quality problem caused by dense fish schools is reduced, meanwhile, the competition pressure and stress reaction between the fishes are reduced, and a more natural and healthy growth environment is provided for the fishes.

Description

Technical Field

[0001] The invention relates to a feeding system, in particular to an underwater feeding system for marine aquaculture, and belongs to the technical field of marine aquaculture. Background Art

[0002] At present, with the rapid development of marine aquaculture in my country, aquaculture in fishery facilities has gradually developed towards the deep sea. Some super-large cages, aquaculture platforms and aquaculture vessels have developed rapidly. The aquaculture process requires mechanized and automated aquaculture supporting facilities. Aquaculture feeding is the most important link in the aquaculture process. It is crucial to improve the aquaculture management level and operation efficiency according to the development and changes of marine aquaculture. The traditional surface feeding mode is generally to lure fish to the water surface to feed, but for large-scale aquaculture facilities in the deep sea, due to the large scale of the aquaculture fish, a large number of fish gather to feed, which will cause the fish to squeeze each other, and the dissolved oxygen in the local water body will be unbalanced, which will affect the production of fish and even cause death. Therefore, according to the aquaculture environment model, it is of great significance to match the appropriate feeding device for deep sea aquaculture. Summary of the invention

[0003] The purpose of the present invention is to provide a marine aquaculture underwater feeding system with high automation and high operating efficiency to solve the above technical problems.

[0004] The present invention adopts the following technical solutions:

[0005] A marine aquaculture underwater feeding system, including a storage bin 1, a weighing system 2, a feeder 3, and also includes a bait mixing device 4, a hydraulic drive device 5, and an underwater conveying device 6; the bait mixing device 4 includes a mixing bin 41, a stirring device 44, and the inlet and outlet of the mixing bin 41 are provided with a feed inlet valve 8 and a discharge outlet valve 9; the output end of the hydraulic drive device 5 is divided into two paths, one of which is tangentially connected to the side wall of the mixing bin 41, and the other is connected to the lower discharge pipe 48 of the mixing bin 41; the underwater conveying device 6 is provided with a delivery pipe 62 of a delivery pump 61, one end of the delivery pipe 62 is connected to the lower discharge pipe 48, and the other end is connected to the feeding pipe 65, and a plurality of feeding nozzles 66 are arranged on both sides of the feeding pipe 65.

[0006] Preferably, the bait-casting nozzle 66 is vortex-shaped.

[0007] Preferably, the end of the delivery pipe 62 is connected to a telescopic hose 63 , the lower end of the telescopic hose 63 is connected to an underwater riser 64 , and the lower end of the underwater riser 64 is connected to the feeding pipe 65 .

[0008] Furthermore, a feeding monitoring system 7 is provided at a depth corresponding to the level of the feeding pipe 65. The feeding monitoring system 7 adopts visual monitoring and is arranged near the feeding pipe 65 to monitor the feeding effect in real time, including the distribution of bait and the reaction of fish.

[0009] Preferably, the inlet of the feeder 3 is connected to the outlet of the storage bin 1 , and the outlet of the feeder 3 is connected to the bait mixing device 4 .

[0010] Preferably, the weighing system 2 is installed on the side wall of the storage bin 1 to accurately control the bait output according to the set feeding amount.

[0011] Preferably, the stirring device 44 is installed horizontally below the mixing bin 41 near the cone, supported by bearing seats 45 at both ends of the outer side of the mixing bin, and driven by a stirring motor 42 at one end.

[0012] Preferably, the hydraulic drive device 5 includes a high-pressure water pump 51, the pump outlet is connected to a three-way pipe, one water pipe is a mixing bin water inlet pipe 52, which is connected to the upper side wall of the mixing bin 41 and enters along the tangent direction of the mixing bin wall, and the other water pipe is a flushing pipe 53, which is connected to the lower discharge pipe 48 of the mixing bin 41; the water inlet pipe 52 and the flushing pipe 53 are respectively provided with a water inlet pipe valve 54 and a flushing pipe valve 55 for independent control.

[0013] A working method of an underwater feeding system for marine aquaculture, wherein a control system pre-sets a feeding amount parameter, a weighing system 2 extracts a certain amount of bait from a storage bin and enters a mixing bin, and then closes a feed inlet valve 8 to prevent suspended liquid from entering the storage bin during the mixing of the bait; a high-pressure water pump 51 is started, a water inlet pipe valve 54 is opened, and an appropriate amount of seawater is drawn into the mixing chamber, and the water inlet pipe and the outer wall of the mixing bin enter along a tangential direction, forming a vortex in the mixing bin 41, driving the bait to float; a stirring device 44 at the bottom of the mixing bin rotates slowly, mixing the bait and water in the mixing bin Stir up and down to prevent sedimentation and form a feed suspension with appropriate concentration; when the liquid in the mixing bin reaches the high liquid level sensor, the high-pressure water pump 51 and the water inlet pipe valve 54 are closed, and the discharge port valve 9 and the high-pressure water pump and flushing pipe valve 55 are opened. Under the action of hydraulic force, the bait suspension in the mixing bin enters the feeding pipe 65 through the delivery pipe 61 and the telescopic hose 63. When the low liquid level sensor detects that the mixing bin is empty, the discharge port valve 9 of the mixing bin is closed, and the flushing pipe 53 is closed after a delay, which can ensure that all the bait in the delivery pipe is discharged.

[0014] Preferably, the multiple vortex-shaped feeding nozzles 66 on the feeding pipe 65 use the rotational force generated by the water flow to evenly disperse the feed into the aquaculture waters. The delivery pump adopts variable frequency speed regulation to adjust the delivery speed and flow rate according to different water depths. Through continuous monitoring and adjustment cycles, the delivery pump maintains the output pressure within a stable range to ensure the uniform dispersion of the feed mixture underwater, which is neither too strong to cause the feed to break and float, nor too weak to cause the feed to settle. The feeding monitoring system 7 monitors the feeding behavior and environmental factors of underwater fish in real time, adjusts the feeding pipe suspension device according to the aggregation state of the fish school, and adjusts the depth of the feeding pipe 65 in the water in real time to perform feeding operations over a larger range.

[0015] The beneficial effects of the present invention are:

[0016] 1) Provide an underwater feeding system for marine aquaculture, which can evenly feed fish at a specific depth underwater, prevent fish from gathering due to feeding on the water surface, maintain the balance of dissolved oxygen in the water, reduce water quality problems caused by dense fish schools, and reduce competition pressure and stress response among fish, providing a more natural and healthy growth environment for fish.

[0017] 2) The output end of the hydraulic drive device is divided into two paths, one of which is tangentially connected to the side wall of the mixing bin to achieve rapid mixing of the material with the water flow, and the other is connected to the lower discharge pipe of the mixing bin to achieve water flow pushing of the material;

[0018] 3) The underwater conveying device includes a conveying pipe with a conveying pump, one end of the conveying pipe is connected to the lower discharge pipe, and the other end is connected to the feeding pipe. A plurality of feeding nozzles are arranged on both sides of the feeding pipe to achieve stable and uniform feeding;

[0019] 4) Real-time monitoring is achieved through the feeding monitoring system located near the feeding pipe, so that the depth of the feeding pipe in the water can be adjusted in real time through the telescopic hose to achieve better feeding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structural diagram of the underwater feeding system for marine aquaculture of the present invention.

[0021] Figure 2 This is a detailed diagram of the mixing device and hydraulic drive device of the marine aquaculture underwater feeding system of the present invention.

[0022] Figure 3 This is a detailed diagram of the conveying device of the underwater feeding system for marine aquaculture of the present invention.

[0023] Figure 4 This is a structural diagram of the water inlet of the bait mixing device of the marine aquaculture underwater feeding system of the present invention

[0024] Figure numerals: 1. Storage bin, 2. Weighing system, 3. Feeder, 4. Bait mixing device, 41. Mixing bin, 42. Stirring motor, 43. Coupling, 44. Stirring shaft, 45. Bearing seat, 46. High liquid level sensor, 47. Low liquid level sensor, 48. Discharge pipe, 5. Hydraulic drive device, 51. High-pressure water pump, 52. Water inlet pipe, 53. Flushing pipe, 54. Water inlet valve, 55. Flushing valve, 6. Underwater conveying device, 61. Conveying pump, 62. Conveying pipe, 63. Telescopic hose, 64. Underwater riser, 65. Feeding pipe, 66. Feeding nozzle, 7. Feeding monitoring system, 8. Feed inlet valve, 9. Discharge outlet valve, 10. Feeding pipe suspension device, 11. Breeding facilities, 12. Support frame. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown.

[0027] See also Figure 1-4 A marine aquaculture underwater feeding system, including a storage bin 1, a weighing system 2, a feeder 3, and also includes a bait mixing device 4, a hydraulic drive device 5, and an underwater conveying device 6; the bait mixing device 4 includes a mixing bin 41, a stirring device 44, and the inlet and outlet of the mixing bin 41 are provided with a feed inlet valve 8 and a discharge outlet valve 9; the output end of the hydraulic drive device 5 is divided into two paths, one of which is tangentially connected to the side wall of the mixing bin 41, and the other is connected to the lower discharge pipe 48 of the mixing bin 41; the underwater conveying device 6 is provided with a delivery pipe 62 with a delivery pump 61, one end of the delivery pipe 62 is connected to the lower discharge pipe 48, and the other end is connected to the feeding pipe 65, and a plurality of feeding nozzles 66 are arranged on both sides of the feeding pipe 65.

[0028] In this embodiment, see Figure 3 , the bait-casting nozzle 66 is vortex-shaped.

[0029] In this embodiment, see Figure 3 The end of the delivery pipe 62 is connected to a telescopic hose 63 , the lower end of the telescopic hose 63 is connected to an underwater riser 64 , and the lower end of the underwater riser 64 is connected to the feeding pipe 65 .

[0030] In this embodiment, see Figure 1 A feeding monitoring system 7 is provided at a depth corresponding to the level of the feeding pipe 65. The feeding monitoring system 7 adopts visual monitoring and is arranged near the feeding pipe 65 to monitor the feeding effect in real time, including the distribution of bait and the reaction of the fish school.

[0031] In this embodiment, see Figure 1 The inlet of the feeder 3 is connected to the outlet of the storage bin 1 , and the outlet of the feeder 3 is connected to the bait mixing device 4 .

[0032] In this embodiment, see Figure 1 The weighing system 2 is installed on the side wall of the storage bin 1 to accurately control the bait output according to the set feeding amount.

[0033] In this embodiment, see Figure 2 The stirring device 44 is horizontally installed under the mixing bin 41 near the cone, supported by bearing seats 45 at both ends of the outer side of the mixing bin, and driven by a stirring motor 42 at one end.

[0034] In this embodiment, see Figure 2 The hydraulic drive device 5 includes a high-pressure water pump 51, the pump outlet is connected to a three-way pipe, one water pipe is a mixing bin water inlet pipe 52, which is connected to the upper side wall of the mixing bin 41 and enters along the tangent direction of the mixing bin wall, and the other water pipe is a flushing pipe 53, which is connected to the lower discharge pipe 48 of the mixing bin 41; the water inlet pipe 52 and the flushing pipe 53 are respectively provided with a water inlet pipe valve 54 and a flushing pipe valve 55 for independent control.

[0035] According to the feeding requirements of breeding, the control system pre-sets the feeding amount parameters, and the weighing system extracts an appropriate amount of bait from the storage bin and enters the mixing bin, then closes the feed inlet valve to prevent the suspended liquid from entering the storage bin during the mixing process. Start the high-pressure water pump, open the water inlet valve, extract an appropriate amount of seawater into the mixing chamber, and the water inlet pipe and the outer wall of the mixing bin enter along the tangent direction, forming a vortex in the mixing bin to drive the bait to float. The stirring mechanism at the bottom of the mixing bin rotates slowly, stirring the bait and water in the mixing bin up and down to prevent sedimentation and form a feed suspension with appropriate concentration. When the liquid in the mixing bin reaches the high liquid level sensor, the high-pressure water pump water inlet valve is closed, and the mixing bin outlet valve and the high-pressure water pump flushing pipe valve are opened. Under the action of hydraulic force, the bait suspension in the mixing bin enters the underwater feeding pipe through the conveying pipe and the hose. When the low liquid level sensor detects that the mixing bin has been emptied, the mixing bin outlet valve 9 is closed, and the flushing pipe 53 is closed after a delay of a period of time, which can ensure that all the bait in the conveying pipe is discharged.

[0036] Multiple vortex nozzles are set on the feeding pipe, which use the rotational force generated by the water flow to evenly disperse the feed into the aquaculture waters, reduce feed accumulation, and improve utilization. The delivery pump adopts variable frequency speed regulation, which can adjust the delivery speed and flow rate according to different water depths. Through continuous monitoring and adjustment cycles, the delivery pump maintains the output pressure within a stable range to ensure the uniform dispersion of the feed mixture underwater, neither too strong to cause the feed to break and float, nor too weak to cause the feed to settle. The feeding monitoring system monitors the feeding behavior and environmental factors of underwater fish in real time, adjusts the feeding pipe suspension device according to the aggregation state of the fish school, and adjusts the depth of the feeding pipe in the water in real time to perform feeding operations in a wider range, improve the efficiency of aquaculture operations, and meet the nutritional needs of farmed fish.

[0037] The invention provides an underwater feeding system for marine aquaculture, which can achieve uniform feeding of bait at a specific underwater depth, prevent fish from gathering due to feeding on the water surface, maintain the balance of dissolved oxygen in the water body, reduce water quality problems caused by dense fish schools, and reduce competition pressure and stress response among fish, so as to provide a more natural and healthy growth environment for fish; the output end of a hydraulic drive device is divided into two paths, one of which is tangentially connected to the side wall of a mixing bin to achieve rapid mixing of materials with water flow, and the other is connected to a lower discharge pipe of the mixing bin to achieve water flow pushing of materials; the underwater conveying device comprises a conveying pipe with a conveying pump, one end of the conveying pipe is connected to the lower discharge pipe, and the other end is connected to a feeding pipe, a plurality of feeding nozzles are arranged on both sides of the feeding pipe, so as to achieve stable and uniform feeding; real-time monitoring is achieved through a feeding monitoring system located near the feeding pipe, so that the depth of the feeding pipe in the water is adjusted in real time through a telescopic hose, so as to achieve a better feeding effect.

Claims

1. An underwater feeding system for marine aquaculture, comprising a storage bin (1), a weighing system (2), and a feeder (3), characterized in that: It also includes a bait mixing device (4), a hydraulic driving device (5), and an underwater conveying device (6); The bait mixing device (4) comprises a mixing chamber (41), a stirring device (44), and the inlet and outlet of the mixing chamber (41) are provided with an inlet valve (8) and an outlet valve (9); The output end of the hydraulic drive device (5) is divided into two paths, one of which is tangentially connected to the side wall of the mixing bin (41), and the other is connected to the lower discharge pipe (48) of the mixing bin (41); The underwater conveying device (6) is provided with a conveying pipe (62) of a conveying pump (61), one end of the conveying pipe (62) is connected to a lower discharge pipe (48), and the other end is connected to a feeding pipe (65), and a plurality of feeding nozzles (66) are arranged on both sides of the feeding pipe (65).

2. The underwater feeding system for marine aquaculture according to claim 1, characterized in that: The bait throwing nozzle (66) is vortex-shaped.

3. The underwater feeding system for marine aquaculture according to claim 1, characterized in that: The end of the delivery pipe (62) is connected to a telescopic hose (63), the lower end of the telescopic hose (63) is connected to an underwater riser (64), and the lower end of the underwater riser (64) is connected to the feeding pipe (65).

4. The underwater feeding system for marine aquaculture according to claim 3, characterized in that: A feeding monitoring system (7) is provided at a depth corresponding to the level of the feeding pipe (65). The feeding monitoring system (7) adopts visual monitoring and is arranged near the feeding pipe (65) to monitor the feeding effect in real time, including the distribution of the bait and the reaction of the fish school.

5. The underwater feeding system for marine aquaculture according to claim 1, characterized in that: The inlet of the feeder (3) is connected to the outlet of the storage bin (1), and the outlet of the feeder (3) is connected to the bait mixing device (4).

6. The underwater feeding system for marine aquaculture according to claim 1, characterized in that: The weighing system (2) is installed on the side wall of the storage bin (1) to accurately control the output of bait according to the set feeding amount.

7. The underwater feeding system for marine aquaculture according to claim 1, characterized in that: The stirring device (44) is installed horizontally below the mixing bin (41) near the cone, supported by bearing seats (45) at both ends of the outer side of the mixing bin, and one end is driven by the stirring motor (42).

8. The underwater feeding system for marine aquaculture according to claim 1, characterized in that: The hydraulic drive device (5) comprises a high-pressure water pump (51), the pump outlet is connected to a three-way pipe, one water pipe is a mixing bin water inlet pipe (52), connected to the upper side wall of the mixing bin (41) and enters along the tangent direction of the mixing bin wall, and the other water pipe is a flushing pipe (53), connected to the lower discharge pipe (48) of the mixing bin (41); the water inlet pipe (52) and the flushing pipe (53) are respectively provided with a water inlet pipe valve (54) and a flushing pipe valve (55) for independent control.

9. A working method of the underwater feeding system for marine aquaculture according to claim 8, characterized in that: The control system pre-sets the feeding amount parameters, and the weighing system (2) extracts a certain amount of bait from the storage bin and enters the mixing bin, and then closes the feed inlet valve (8) to prevent the suspended liquid from entering the storage bin during the bait mixing process; Start the high-pressure water pump (51), open the water inlet valve (54), and draw a proper amount of seawater into the mixing chamber. The water inlet pipe and the outer wall of the mixing chamber enter along the tangent direction, forming a vortex in the mixing chamber (41), driving the bait to float; The stirring device (44) at the bottom of the mixing bin rotates slowly to stir the bait and water in the mixing bin up and down to prevent sedimentation and form a feed suspension with appropriate concentration; When the liquid in the mixing bin reaches the high liquid level sensor, the high pressure water pump (51) and the water inlet valve (54) are closed, and the discharge valve (9) and the high pressure water pump and flushing pipe valve (55) are opened. Under the action of hydraulic force, the bait suspension in the mixing bin enters the feeding pipe (65) through the delivery pipe (61) and the telescopic hose (63). When the low liquid level sensor detects that the mixing bin has been emptied, the discharge valve (9) of the mixing bin is closed, and the flushing pipe (53) is closed after a delay of a period of time, so as to ensure that all the bait in the delivery pipe is discharged.

10. The working method of the underwater feeding system for marine aquaculture according to claim 9, characterized in that: The multiple vortex-shaped feeding nozzles (66) on the feeding pipe (65) utilize the rotational force generated by the water flow to evenly disperse the feed into the aquaculture waters. The delivery pump adopts variable frequency speed regulation to adjust the delivery speed and flow rate according to different water depths. Through continuous monitoring and adjustment cycles, the delivery pump maintains the output pressure within a stable range to ensure that the feed mixture is evenly dispersed underwater, neither too strong to cause the feed to break and float, nor too weak to cause the feed to settle. The feeding monitoring system (7) monitors the feeding behavior and environmental factors of underwater fish in real time, adjusts the feeding pipe suspension device according to the aggregation state of the fish school, and adjusts the depth of the feeding pipe (65) in the water in real time to perform feeding operations over a wider range.

Images