Circulating aquaculture feeding device

Abstract

The invention belongs to the related technical field of feeding equipment, and particularly discloses a recirculating aquaculture feeding device which comprises a U-shaped bridge pier body, a connecting column is arranged on the inner side of the U-shaped bridge pier body, attaching bases abutting against the upper portion of the connecting column are arranged on the two sides of the outer portion of the connecting column, and frame bases are fixedly arranged on the inner sides of the outer portions of the two attaching bases. The two attaching bases are connected through a bidirectional telescopic rod arranged together, clamping pieces are arranged on the lower portions of the interiors of the two frame bases, fixing mechanisms are arranged on the upper end faces of the two frame bases, fixing columns are arranged on the outer walls of the front ends of the two frame bases, and the exteriors of the two fixing columns are correspondingly connected with supporting columns through arranged hanging rods. According to the edible mushroom cultivation platform, in the process of feeding equipment, an edible mushroom cultivation medium can be dispersed, air permeability is kept, it needs to be guaranteed that heat penetrates through the interior during sterilization, and sterilization dead angles are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field related to feeding equipment, and specifically discloses a circulating water aquaculture feeding device. Background Art

[0002] With the rapid development of the recirculating aquaculture system (RAS), high-density aquaculture poses higher requirements for the coordination of water quality management and precise feeding. In existing recirculating aquaculture systems, the feeding devices mostly adopt fixed throwing structures, resulting in uneven distribution of feed, leading to local overfeeding and accumulation of residual bait. At the same time, problems such as insufficient dissolved oxygen in the water body and suspension of feces need to be treated by independent purification equipment, and the feeding system and the water treatment system usually operate separately, with bottlenecks such as repeated energy consumption, low space utilization rate, and response lag. Especially during the feed delivery process, the contradiction between water body disturbance and sedimentation of residual bait has not been resolved for a long time, resulting in coexistence of water quality deterioration and feed waste. Therefore, it needs to be improved. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the background art, and a circulating water aquaculture feeding device is proposed, including a pool body and a feed bin. On both sides above the pool body, there are frame rails. Inside the two frame rails, sliding frames are respectively installed corresponding to each other through driving mechanisms provided. Inside one end of the two sliding frames away from the frame rails, a water circulation treatment mechanism is connected through a lifting mechanism provided. The outside of the feed bin is jointly erected above the two sliding frames through an installation frame provided, and inside the installation frame and near the lower part of the feed bin, there is a hopper bin. Below the hopper bin, there is a metering bin. Below the outside of the metering bin, a V-shaped guide plate is connected through a fixing mechanism provided. On both sides of the V-shaped guide plate, there are ring shells extending out, and inside the ring shells, there are centrifugal material distribution mechanisms provided.

[0004] Preferably, the driving mechanism includes a lead screw rotatably installed at the lower part inside the frame rail. One end of the lead screw is threaded through the inside of the sliding frame. The sliding frame is slidably matched with the frame rail. One end of the lead screw is provided with a first motor. On the outer wall of one side of the pool body, there is a bracket fixedly provided, and a fixed connection is made between the bracket and the first motor.

[0005] Preferably, the lifting mechanism includes a vertical frame fixedly provided inside the sliding frame and away from one side of the frame rail. Inside the vertical frame, there is a first hydraulic cylinder. The telescopic end of the first hydraulic cylinder is fixedly provided with a slider. The slider is slidably matched with the inner wall of the vertical frame. The water circulation treatment mechanism is arranged on the outer wall of one side of the slider.

[0006] Preferably, the water circulation treatment mechanism includes a connecting rod fixedly provided on the outer wall of one side of the slider. At the end of the connecting rod, there is a portal frame. On both sides inside the portal frame and near the lower position, there are reciprocating mechanisms provided.

[0007] Preferably, two sets of the gantries arranged symmetrically are connected by two fixed rods arranged therebetween. Mounting seats are commonly installed at both outer ends of the two fixed rods. A connecting seat is commonly arranged between two mounting seats at the same end. A clamping shaft is rotatably inserted through the interior of the mounting seat. A rotating joint is sleeved outside the clamping shaft. A swing rod extends from one end of the rotating joint away from the clamping shaft. An aeration device is clamped inside the swing rod. An engaging member that is matched with the reciprocating mechanism for rotation is arranged above the outer portion of the clamping shaft.

[0008] Preferably, the reciprocating mechanism includes a second hydraulic cylinder fixedly arranged on one side inside the gantry. A rack is fixedly arranged at the telescopic end of the second hydraulic cylinder.

[0009] Preferably, the engaging member includes a fixed sleeve fixedly arranged above the outer portion of the clamping shaft. An arc-shaped gear is arranged outside the fixed sleeve. The arc-shaped gear is meshed and connected with the rack.

[0010] Preferably, the fixing mechanism includes steel frames respectively installed on both sides of the outer wall of the metering bin. The V-shaped material guiding plate is clamped between the two sets of steel frames. A metering rotary distributing blade is rotatably arranged inside the metering bin. One end of the axis of the metering rotary distributing blade extends outside the metering bin and is connected with a second motor. The second motor is fixedly installed outside the metering bin.

[0011] Preferably, the centrifugal material distributing mechanism includes a rotating shaft rotatably inserted through the middle inside the ring shell. Material distributing centrifugal vanes are fixedly arranged on the outer portion of the rotating shaft and at the inner surface of the ring shell. A clamping shell is arranged at the bottom of the ring shell. A filter cylinder is in threaded connection inside the clamping shell. A spiral scraping and screwing blade is arranged on the inner surface of the filter cylinder. A rotary screen cylinder is arranged inside the filter cylinder and on the outer portion of the rotating shaft. Condensing and disturbing vanes are arranged on the outer surface of the rotary screen cylinder at equal intervals along the circumferential direction. Material distributing openings are respectively formed on both sides inside the ring shell. A third motor is arranged above one end of the rotating shaft. The third motor is obliquely installed outside the metering bin through a fixed frame arranged therebetween.

[0012] Preferably, support columns are installed at each corner outside the pool body. The inner surface of the pool body is all arranged as a conical surface. A notch box is communicated and installed at the center of the bottom of the pool body. An adsorption pipe is communicated and installed on one side inside the notch box. One side inside the adsorption pipe is connected with an intermittent vacuum pump through a connecting pipe communicated therewith. The intermittent vacuum pump is fixedly connected with the outside of the pool body.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By setting up a rack rail above the pool body and driving the carriage to move through the transmission of the driving mechanism, the feeding bin, hopper bin, and metering bin can move above the pool body. Thus, when feeding granular feed, the granular feed can be evenly spread on the water surface. Through the set V-shaped guide plate, the falling granular feed can be discharged into the inner part of the ring shell. When the third motor drives the rotating shaft to rotate, the feeding centrifugal plate can evenly spray the granular feed on the inner surface of the ring shell in a centrifugal manner through the feeding port into the pool, reducing the aggregation of fish schools.

[0014] By setting the inner surface of the pool body as a conical surface, the feces of the fish school can be guided to settle at the incision box, and the intermittent vacuum pump is set to suck the feces, reducing the pollution of water by feces during the daily feeding of fish.

[0015] By setting a guide at the lower end of the metering bin to guide the granular feed to the surface of the V-shaped guide plate, the third motor drives the rotating shaft and the feeding centrifugal plate above the ring shell to rotate, and the granular feed is thrown into the pool from the feeding port in a centrifugal and dispersed manner, which can increase the feeding area of the thrown granular feed. Driven by the rotating shaft, the rotating screen cylinder at the lower end of the rotating shaft can highly agitate the flocs in the pool body, promoting the reduction of impurities inside the pool body. At the same time, during the high-speed rotation of the rotating screen cylinder, the floating objects and flocs on the surface can be centrifugally thrown to the outer surface of the spiral scraping and screwing piece. Through the spiral structure, the flocs are attached to the outside of the spiral scraping and screwing piece, and with the dynamic path of feeding, the two-way optimization of feeding and water treatment can be achieved.

[0016] Through the set first hydraulic cylinder, the slider, connecting rod, and gantry can be driven for height adjustment. When the carriage moves horizontally, the aeration device can be injected into the pool body. The second first hydraulic cylinder drives the rack to slide, and the corresponding arc gear drives the clamping shaft, rotating joint, swing rod, and aeration device to perform an arc movement, which helps to expand the aeration area of the pool body, increase the oxygen in the pool body, realize the closed-loop management of feeding, filtering, and oxygenation, and greatly improve the space efficiency and energy utilization rate of the recirculating aquaculture system. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall connection structure of the present invention from another angle; Figure 3 It is a schematic diagram of the partial structure inside the pool body of the present invention; Figure 4 It is a schematic diagram of the connection structure among the feeding bin, hopper bin, and metering bin of the present invention; Figure 5 It is a schematic diagram of the connection structure among the rail rack, slider, and driving mechanism of the present invention; Figure 6 It is a schematic diagram of the connection structure among the rail rack, slider, and driving mechanism of the present invention from another angle; Figure 7 Schematic diagram of the connection structure between the quantitative bin and the V-shaped guide plate of the present invention; Figure 8 Schematic diagram of the connection structure between the ring shell and the V-shaped guide plate of the present invention; Figure 9 Schematic diagram of the connection structure between the ring shell and the filter cartridge of the present invention; Figure 10 Schematic diagram of the disassembly of the connection between the cartridge case, the rotating shaft and the filter cartridge of the present invention; Figure 11 For the present invention Figure 6 Enlarged structure schematic diagram at position A in

[0018] In the figure: 1. Pool body; 2. Support column; 3. Conical surface; 4. First motor; 5. Mounting frame; 6. Feeding bin; 7. Gantry; 8. Rack rail; 9. Lead screw; 10. Connecting rod; 11. Hopper bin; 12. Bracket; 13. Intermittent vacuum pump; 14. Notch box; 15. Adsorption tube; 16. Connecting pipe; 17. Second motor; 18. Quantitative rotary distribution blade; 19. Slide carriage; 20. Vertical frame; 21. Fixed rod; 22. Aeration device; 23. Second hydraulic cylinder; 24. First hydraulic cylinder; 25. Swing rod; 26. Connecting seat; 27. Slide block; 28. Quantitative bin; 29. Filter cartridge; 30. Fixed frame; 31. Distribution centrifugal blade; 32. Third motor; 33. Ring shell; 34. Steel frame; 35. Spiral scraping and screwing blade; 36. Distribution port; 37. V-shaped guide plate; 38. Rotary screen cylinder; 39. Rotating shaft; 40. Cartridge case; 41. Coagulation and turbulence disturbing blade; 42. Arc gear; 43. Fixed sleeve; 44. Rotating joint; 45. Frame seat; 46. Rack. Detailed implementation manners

[0019] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0020] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0021] Such as Figures 1 - 11A circulating water aquaculture feeding device shown in the figure includes a pool body 1 and a feeding bin 6. On both sides above the pool body 1, there are installed rack rails 8. Inside the two sets of rack rails 8, sliding frames 19 are respectively installed in a corresponding manner through driving mechanisms arranged. At one end of the two sliding frames 19 away from the rack rails 8, a water circulation treatment mechanism is connected through a lifting mechanism arranged inside. The outside of the feeding bin 6 is jointly erected above the two sliding frames 19 through an installation frame 5 arranged. And inside the installation frame 5 and near the lower part of the feeding bin 6, there is a hopper bin 11. Below the inside of the hopper bin 11, there is a metering bin 28. Below the outside of the metering bin 28, a V-shaped material guiding plate 37 is connected through a fixing mechanism arranged. On both sides of the V-shaped material guiding plate 37, there are extended ring shells 33. And inside the ring shells 33, there are centrifugal material distribution mechanisms arranged; The rack rail 8 is made of aluminum alloy material, and the span covers the pool body 1; The feeding bin 6 can pre-store granular feed, convey the feed to the inside of the hopper bin 11, and finally conduct metered feeding through the metering bin 28.

[0022] The driving mechanism includes a lead screw 9 rotatably installed at the lower part inside the rack rail 8. One end of the lead screw 9 is threaded through the inside of the sliding frame 19. The sliding frame 19 is in sliding fit with the rack rail 8. At one end of the lead screw 9, there is a first motor 4. On the outer wall of one side of the pool body 1, there is a fixed bracket 12. A fixed connection is provided between the bracket 12 and the first motor 4; The first motor 4 drives the sliding frame 19 to translate outside the rack rail 8. When feeding, it can expand the feed throwing area and improve the feeding rate in the edge area, thereby meeting the dynamic feeding of different fish groups.

[0023] The lifting mechanism includes a vertical frame 20 fixedly arranged inside the sliding frame 19 on the side away from the rack rail 8. Inside the vertical frame 20, there is a first hydraulic cylinder 24. The telescopic end of the first hydraulic cylinder 24 is fixedly provided with a slider 27. The slider 27 is in sliding fit with the inner wall of the vertical frame 20. The water circulation treatment mechanism is arranged on one outer wall of the slider 27. The water circulation treatment mechanism includes a connecting rod 10 fixedly arranged on one outer wall of the slider 27. At the end of the connecting rod 10, there is a portal frame 7. On both sides inside the portal frame 7 and near the lower position, there are reciprocating mechanisms arranged; The first hydraulic cylinder 24 drives the slider 27, the connecting rod 10, and the portal frame 7 to move downward, prompting the reciprocating mechanism to penetrate deep into the pool body 1, and then cooperating with the water circulation treatment mechanism to penetrate into the pool body 1 for purification treatment.

[0024] Two sets of gantries 7 arranged symmetrically are connected by two fixed rods 21 provided. Seat brackets 45 are jointly installed at both outer ends of the two fixed rods 21. A connecting seat 26 is jointly arranged between two seat brackets 45 at the same end. A clamping shaft is rotationally inserted inside the seat bracket 45. A rotating joint 44 is sleeved outside the clamping shaft. A swing rod 25 extends from one end of the rotating joint 44 away from the clamping shaft. An aeration device 22 is clamped inside the swing rod 25. Above the outside of the clamping shaft, an engaging member that rotates in cooperation with a reciprocating mechanism is provided. The reciprocating mechanism includes a second hydraulic cylinder 23 fixedly arranged on one side inside the gantry 7. A rack 46 is fixedly arranged at the telescopic end of the second hydraulic cylinder 23. The engaging member includes a fixed sleeve 43 fixedly arranged above the outside of the clamping shaft. An arc gear 42 is arranged outside the fixed sleeve 43. The arc gear 42 is meshed and connected with the rack 46; When the aeration device 22 extends to the lower part inside the pool body 1, the second hydraulic cylinder 23 drives the rack 46 to reciprocate, drives the arc gear 42 to rotate, promotes the swing rod 25 to swing horizontally, expands the aeration coverage range, and can evenly improve the dissolved oxygen rate of the deep water body; The aeration device 22 is composed of structures such as a submersible pump, a jet, a diffuser, and an air suction pipe.

[0025] The fixing mechanism includes steel frames 34 respectively installed on both outer walls of the quantitative bin 28. A V-shaped material guiding plate 37 is clamped between the two sets of steel frames 34. A quantitative rotating and distributing blade 18 is rotationally arranged inside the quantitative bin 28. One end of the axis of the quantitative rotating and distributing blade 18 extends outside the quantitative bin 28 and is connected with a second motor 17. The second motor 17 is fixedly installed outside the quantitative bin 28; When the second motor 17 starts to drive the rotating and distributing blade 18 inside the quantitative bin 28 to rotate, the granular feed can be evenly discharged into the pool body 1. It should be specially noted that a meter can be added inside the quantitative bin 28 to weigh the weight of the granular feed fed each time.

[0026] The centrifugal distributing mechanism includes a rotating shaft 39 rotationally inserted in the middle inside the ring shell 33. Centrifugal distributing sheets 31 are fixedly arranged on the outside of the rotating shaft 39 and at the inner surface of the ring shell 33. A clamping shell 40 is arranged at the bottom of the ring shell 33. A filter cylinder 29 is threadedly connected inside the clamping shell 40. A spiral scraping and screwing sheet 35 is arranged on the inner surface of the filter cylinder 29. A rotating sieve cylinder 38 is arranged on the outside of the rotating shaft 39 and inside the filter cylinder 29. Condensing and disturbing sheets 41 are arranged at equal intervals along the circumferential direction on the outer surface of the rotating sieve cylinder 38. Distributing openings 36 are opened on both sides inside the ring shell 33. A third motor 32 is arranged above one end of the rotating shaft 39. The third motor 32 is obliquely installed outside the quantitative bin 28 through a fixed bracket 30 provided; The third motor 32 drives the rotating shaft 39 to rotate at a high speed. The feed is thrown in a fan shape from the material distribution port 36 under the centrifugal force into the pool body 1, which can greatly improve the dispersion degree of the granular feed, reduce the aggregation of the fish group, and also reduce the stress response of the fish group due to traditional fixed-point feeding. At the same time, the rotating shaft 39 also drives the rotating screen cylinder 38 below to rotate, so that during the transverse movement, the flocs on the liquid surface are centrifugally thrown to the outside of the floc disturbing flow plate 41, reducing the probability of fish swallowing plankton and flocs during feeding and ensuring the growth environment of the fish; And the cartridge case 40 is threadedly connected to the filter cylinder 29, which is relatively convenient for disassembly and cleaning in the later stage.

[0027] Support columns 2 are installed at each corner outside the pool body 1. The inner surface of the pool body 1 is set as a conical surface 3. And a cut box 14 is connected and installed at the center of the bottom of the pool body 1. One side inside the cut box 14 is connected and installed with an adsorption pipe 15. One side inside the adsorption pipe 15 is connected with an intermittent vacuum pump 13 through a connected connecting pipe 16. The intermittent vacuum pump 13 is fixedly connected to the outside of the pool body 1; The support column 2 is made of stainless steel to ensure the stability of the equipment erection; The design of the conical surface 3 can use gravity to guide fish feces and residual bait to concentrate inside the cut box 14. The intermittent vacuum pump 13 efficiently collects the feces through the connecting pipe 16 and the adsorption pipe 15, reduces the sediment, reduces the ammonia nitrogen concentration, and purifies the water inside the pool body 1 through an external purification device.

[0028] Working principle: When in use, the first motor 4 drives the lead screw 9 to rotate, driving the carriage 19 to move horizontally along the frame rail 8, so that the feeding bin 6 covers the entire area of the pool body 1. The second motor 17 drives the rotating distribution blade 18 to rotate, prompting the granular feed inside the quantitative bin 28 to fall evenly. At the same time, the third motor 32 drives the rotating shaft 39 to rotate at a high speed. The material distribution centrifugal piece 31 evenly scatters the feed through the material distribution port 36 in a fan shape. The scattering area is larger than that of traditional fixed-point feeding, reducing the aggregation of the fish group. And during the rotation of the rotating shaft 39, the rotating screen cylinder 38 at the lower end is prompted to synchronously disturb the water body. When the rotating screen cylinder 38 rotates at a high speed, the flocs are centrifugally thrown to the outer surface of the spiral scraping and screwing piece 35, reducing the situation of the fish group swallowing sundries during feeding. The multi-layer spiral structure outside the spiral scraping and screwing piece 35 can attach the flocs. Subsequently, the filter cylinder 29 is removed by thread to uniformly process the flocs on the outer surface. The inner surface of the pool body 1 is set as a conical surface 3. The fish feces and residual bait slide along the conical surface 3 to the cut box 14 due to gravity. The intermittent vacuum pump 13 sucks periodically, and sucks the fish feces and residual bait inside to the outside through the connecting pipe 16, ensuring the growth environment of the pool body 1; After the feeding is completed, the first hydraulic cylinder 24 drives the gantry 7, the connecting rod 10, and the slider 27 to descend, causing the aeration device 22 to be injected into the interior of the pool body 1. The second hydraulic cylinder 23 drives the rack 46 to slide, prompting the rotation of the arc gear 42 and the clamping shaft on one side. Thus, the rotating joint 44 at the lower end of the clamping shaft and the aeration device 22 can oxygenate the pool body 1 through a laterally swinging path, realizing the closed-loop management of feeding, filtering, and oxygenation, and greatly improving the space efficiency and energy utilization rate of the recirculating aquaculture system.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A circulating water aquaculture feeding device, comprising a pool body (1) and a feeding bin (6), characterized in that: On both sides above the pool body (1), there are track rails (8) provided. Inside the two groups of track rails (8), there are sliding frames (19) respectively installed in a sliding manner through the driving mechanisms provided. One end of the two sliding frames (19) away from the track rails (8) is internally connected with a water circulation treatment mechanism through the lifting mechanism provided. The outside of the feeding bin (6) is jointly erected above the two sliding frames (19) through the mounting frame (5) provided. And inside the mounting frame (5) and near the lower part of the feeding bin (6), there is a hopper bin (11). Below the hopper bin (11), there is a quantitative bin (28). Below the outside of the quantitative bin (28), there is a V-shaped guiding plate (37) connected through the fixing mechanism provided. On both sides of the V-shaped guiding plate (37), there are ring shells (33) extending out. And inside the ring shells (33), there are centrifugal material distribution mechanisms provided.

2. The circulating water aquaculture feeding device according to claim 1, wherein: The driving mechanism includes a lead screw (9) rotatably installed at the lower part inside the track rail (8). One end of the lead screw (9) is threaded through the inside of the sliding frame (19). The sliding frame (19) is in sliding fit with the track rail (8). One end of the lead screw (9) is provided with a first motor (4). On one side outer wall of the pool body (1), there is a bracket (12) fixedly arranged. There is a fixed connection between the bracket (12) and the first motor (4).

3. The circulating water aquaculture feeding device according to claim 1, wherein: The lifting mechanism includes a vertical frame (20) fixedly arranged inside one side of the sliding frame (19) away from the track rail (8). Inside the vertical frame (20), there is a first hydraulic cylinder (24). The telescopic end of the first hydraulic cylinder (24) is fixedly provided with a slider (27). The slider (27) is in sliding fit with the inner wall of the vertical frame (20). The water circulation treatment mechanism is arranged on one side outer wall of the slider (27).

4. The circulating water aquaculture feeding device according to claim 3, wherein: The water circulation treatment mechanism includes a connecting rod (10) fixedly arranged on one side outer wall of the slider (27). At the end of the connecting rod (10), there is a portal frame (7). On both sides inside the portal frame (7) and near the lower position, there are reciprocating mechanisms provided.

5. The circulating water aquaculture feeding device according to claim 4, wherein: Between the two symmetrically arranged portal frames (7), there are two fixed rods (21) provided for connection. At both ends of the outside of the two fixed rods (21), there are mounting seats (45) jointly installed. Between the two mounting seats (45) at the same end, there is a connecting seat (26). Inside the mounting seat (45), there is a clamping shaft rotatably inserted. Outside the clamping shaft, there is a rotating joint (44) sleeved. One end of the rotating joint (44) away from the clamping shaft extends out with a swing rod (25). Inside the swing rod (25), there is an aeration device (22) clamped. Above the outside of the clamping shaft, there is an engaging part that cooperates with the reciprocating mechanism to rotate.

6. The circulating water aquaculture feeding device according to claim 5, characterized in that: The reciprocating mechanism includes a second hydraulic cylinder (23) fixedly arranged on one side inside the portal frame (7). The telescopic end of the second hydraulic cylinder (23) is fixedly provided with a rack (46).

7. The circulating water aquaculture feeding device according to claim 6, wherein: The engaging part includes a fixed sleeve (43) fixedly arranged above the outside of the clamping shaft. Outside the fixed sleeve (43), there is an arc-shaped gear (42). The arc-shaped gear (42) is meshed and connected with the rack (46).

8. The circulating water aquaculture feeding device according to claim 1, wherein: The fixed mechanism includes steel frames (34) respectively installed on both sides of the outer wall of the metering bin (28). The V-shaped material guiding plate (37) is clamped between the two groups of steel frames (34). A metering rotary distributing blade (18) is rotatably arranged inside the metering bin (28), and one end of the axis of the metering rotary distributing blade (18) extends outside the metering bin (28) and is connected to a second motor (17). The second motor (17) is fixedly installed outside the metering bin (28).

9. The circulating water aquaculture feeding device according to claim 1, characterized in that: The centrifugal distributing mechanism includes a rotating shaft (39) rotatably inserted through the middle of the inner side of the ring shell (33). Distributing centrifugal blades (31) are fixedly arranged on the outer part of the rotating shaft (39) and at the inner surface of the ring shell (33). A clamping shell (40) is arranged at the bottom of the ring shell (33). A filter cartridge (29) is threadedly connected inside the clamping shell (40). A spiral scraping and screwing blade (35) is arranged on the inner surface of the filter cartridge (29). A rotating screen cylinder (38) is arranged on the outer part of the rotating shaft (39) and inside the filter cartridge (29). Condensing and disturbing flow blades (41) are arranged on the outer surface of the rotating screen cylinder (38) at equal intervals in the circumferential direction. Distributing openings (36) are formed on both sides inside the ring shell (33). A third motor (32) is arranged above one end of the rotating shaft (39). The third motor (32) is obliquely installed outside the metering bin (28) through a fixed frame (30) arranged thereon.

10. The circulating water aquaculture feeding device according to claim 1, characterized in that: Support columns (2) are installed at each corner outside the pool body (1). The inner surface of the pool body (1) is set as a conical surface (3). A cut-off box (14) is connected and installed at the center of the bottom of the pool body (1). An adsorption pipe (15) is connected and installed on one side inside the cut-off box (14). An intermittent vacuum pump (13) is connected to one side inside the adsorption pipe (15) through a connecting pipe (16) connected and installed. The intermittent vacuum pump (13) is fixedly connected to the outside of the pool body (1).

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