Feed scattering device and method for aquaculture

Abstract

The invention belongs to the technical field of automatic aquaculture, and discloses a feed scattering device and method for aquaculture, the device comprises a feed tank body, and a plurality of groups of inner storage tanks are arranged in the feed tank body; a discharging mechanism at the bottom of each inner storage tank achieves accurate metering of feed through the overlap ratio of discharging holes of an upper fixing disc and a lower rotating disc. The scattering assembly synchronously driven by the lower rotating disc can instantly crush and scatter the falling feed; the mixed feed is conveyed to the top through the feed scattering and conveying piece and pushed through the two-stage gas booster pump, the feed scattering distance and the coverage range are remarkably increased, and meanwhile the feed scattering uniformity is optimized through continuous vibration of the feed scattering gun body. Feed is effectively prevented from being affected with damp and agglomerated, the feed is thoroughly crushed, the mixing proportion is flexibly adjusted, and the spraying distance and uniformity are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of automated aquaculture technology, specifically relating to a feed spreading device and method for aquaculture. Background Technology

[0002] Aquaculture is one of my country's important agricultural industries. With the continuous expansion of aquaculture scale, traditional manual feeding methods can no longer meet the needs of modern aquaculture. Manual feeding is not only labor-intensive and inefficient, but also makes it difficult to ensure the uniformity of feed distribution, affecting the aquaculture results. In order to improve aquaculture efficiency, various automatic feeding devices have emerged in existing technologies.

[0003] Existing aquaculture feeding equipment is mainly divided into two types: fixed and mobile. Fixed feeding equipment is usually installed at the edge of the aquaculture pond and sprays feed onto the water surface using a pressurized spray gun; mobile feeding equipment can move around the water surface or the edge of the aquaculture pond to spread feed. These devices have solved the problem of low efficiency of manual feeding to some extent, but the following technical defects still exist in actual use: (1) The existing feed spreading equipment is located on one side of the aquaculture pond for a long time. The equipment is exposed to a high humidity environment, and moisture can easily penetrate into the inside of the feed spreading equipment and wet the stored feed. After the feed gets damp, it is easy to clump and coagulate. Clumped feed is not only easy to deteriorate and affect the quality of feed, but may also block the feed spreading gun and conveying pipe, causing the equipment to malfunction and the feed spreading operation to be forced to stop, which seriously affects the continuity of aquaculture operations.

[0004] (2) The storage structure of the feed spreading equipment can usually only store and spread a single type of feed, and cannot achieve the mixing and spreading of multiple feeds. In actual aquaculture, the feed ratio often needs to be adjusted according to the different growth stages and nutritional needs of aquatic species. Existing equipment cannot flexibly adjust the ratio of mixed feed, and manual mixing of feed is required in advance, which is cumbersome and difficult to control the ratio accurately.

[0005] (3) There is a lack of effective prevention and treatment mechanisms for feed agglomeration. Even if the equipment has a certain stirring function, it is mainly for mixing loose feed. There is a lack of effective means to break up the already formed feed agglomerates, which makes it impossible for the agglomerated feed to pass through the conveying system smoothly, affecting the normal operation of the equipment.

[0006] In addition, existing feed spreading equipment has shortcomings in spraying distance and uniformity. Limited spraying distance requires the equipment to be moved frequently to cover the entire breeding area; uneven spraying results in some areas having too much feed and others having too little feed, affecting breeding results and feed utilization. Summary of the Invention

[0007] Purpose of the Invention: The purpose of this invention is to address the shortcomings of existing technologies by providing a feed spreading device for aquaculture. Through a double-layer protective structure of the inner storage tank and the feed tank, the device effectively reduces the possibility of feed clumping due to moisture absorption. A multi-stage crushing and dispersing mechanism ensures that clumped feed is completely broken up, preventing blockage of the spreading system. The configuration of multiple inner storage tanks and a pressure monitoring system allows for flexible adjustment of the mixed feed ratio. A dual-stage gas pressurization and vibration distribution mechanism significantly improves the spraying distance and uniformity.

[0008] Technical solution: The feed spreading device for aquaculture according to the present invention includes: The feed tank has multiple sets of inner storage tanks arranged at equal intervals around its upper interior, forming a double-layer protective structure. A mixing assembly, located at the bottom of the feed tank, is used to mix feed from different inner storage tanks; A feeder is positioned in the middle of the feed tank. The feeder can transport the feed mixed by the mixing component to the top of the feed tank and spray it. A dehumidifying device is installed at the bottom of the mixing assembly. The dehumidifying device can dehumidify the inside of the spreading and feeding component to keep the inside of the system dry. A discharge mechanism is provided at the bottom of each of the inner storage tanks, and the discharge mechanism includes a discharge plate and a dispersing assembly; The feeding plate includes an upper fixed plate and a lower rotating plate. The upper fixed plate and the lower rotating plate are fitted together and overlap vertically. Both the upper fixed plate and the lower rotating plate are provided with feeding holes. The opening and closing of the feeding holes are controlled by rotating the lower rotating plate. The dispersing assembly consists of an upper stirring mechanism and a lower stirring mechanism, which are fixedly connected to the upper and lower sides of the lower rotating disk, respectively. The upper stirring mechanism, the lower rotating disk, and the lower stirring mechanism can rotate synchronously to perform multi-stage crushing and dispersing of the feed falling from the inner storage tank.

[0009] To further improve the above technical solution, the upper fixed plate is fixedly installed at the bottom of the inner storage tank, and the lower rotating plate is rotatably connected to the lower surface of the upper fixed plate. The upper stirring mechanism includes an inner stirring component, the lower end of which is fixedly installed on the upper surface of the lower rotating plate, and the upper end is rotatably connected to the top of the inner storage tank. A first motor is installed at the top of the inner storage tank, and the output end of the first motor is fixedly connected to the inner stirring component. With this structure, the first motor can drive the inner stirring component, the lower rotating plate, and the dispersing assembly to rotate synchronously, achieving synergistic effects of feed feeding control and crushing / dispersing.

[0010] Furthermore, the lower stirring mechanism includes a conical baffle, which is located below the lower rotating disk and rotatably connected to the inner storage tank. The tip of the conical baffle points downwards and has a discharge hole at the tip. Multiple sets of connecting plates are evenly connected around the discharge hole on the upper surface of the conical baffle. Each connecting plate is telescopic and its upper end is fixedly connected to the lower rotating disk. Multiple sets of material dispersing rods are fixedly installed on the upper edge of the conical baffle. Abutment rods are symmetrically installed on the lower surface of the conical baffle. A convex plate is fixedly installed on the lower surface of the inner storage tank. The lower end of each abutment rod abuts against the upper surface of the convex plate. When the conical baffle rotates, it vibrates due to the contact between the abutment rods and the convex plate. This structure achieves multiple functions: rotary crushing, filtering, and vibration-assisted discharge of feed.

[0011] Furthermore, the mixing assembly includes an inner guide seat, which is rotatably mounted on the lower end of the feed tank. The upper surface of the inner guide seat is a conical surface inclined towards the center. Multiple sets of internal stirring shafts are fixedly mounted on the upper surface of the inner guide seat. A material accumulation hole is opened in the center of the inner guide seat, and multiple sets of ventilation holes are opened at the bottom of the material accumulation hole. A support base is fixedly mounted on the lower end of the feed tank, and the lower end of the inner guide seat is inserted into and rotatably connected to the support base. This structure allows feed from different inner storage tanks to be fully mixed and converged at the material accumulation hole for delivery.

[0012] Furthermore, a lower empty chamber is provided below the ventilation hole in the inner guide seat. The lower empty chamber is connected to the support base, and the dehumidification device is fixedly installed inside the support base. Multiple sets of side connecting columns are equidistantly arranged around the edge of the support base. The interior of each side connecting column is hollow, forming a dehumidification chamber, and a filter element is fixedly installed at the upper end of the dehumidification chamber. The side connecting columns are filled with desiccant. Multiple air chambers are opened inside the support base, and the air chambers connect the dehumidification device to the bottom of the dehumidification chamber. This structure forms a complete dehumidification circulation system. Moisture is extracted by the dehumidification device, introduced into the dehumidification chamber through the air chambers, absorbed by the desiccant, and discharged through the filter element, effectively maintaining the dry state inside the system.

[0013] Furthermore, the feeding component includes a feeding pipe, an upper guide component, and a feeding gun body. The feeding pipe is rotatably installed in the middle of the feed tank, with its lower end positioned above the stacking hole. The upper guide component is rotatably connected to the upper surface of the feed tank, and the upper end of the feeding pipe is fixedly connected to the upper guide component. A rotary motor is fixedly installed on the upper surface of the upper guide component, and a spiral feeding component is fixedly installed at the output end of the rotary motor. The spiral feeding component is located inside the feeding pipe and conforms to the inner wall of the feeding pipe. The feeding gun body is rotatably connected to the upper guide component via a rotating seat, and the lower end of the feeding gun body is connected to the upper end of the feeding pipe via a retractable flexible hose. This structure enables spiral conveying and flexible spraying of feed.

[0014] Furthermore, a rear pushing component is fixedly installed inside the upper guide component on the side away from the spreading gun body, and a front pushing component is fixedly installed inside the spreading gun body. Both the front pushing component and the rear pushing component are gas booster pumps. A positioning ring is fixedly installed at the front end of the spreading gun body, and multiple sets of cutting blades are fixedly installed inside the positioning ring. A shrinkable baffle is arranged around the end of the positioning ring away from the front pushing component. This structure realizes the functions of dual-stage gas booster pushing, cutting processing, and automatic protection of feed.

[0015] Furthermore, glass frames are provided on the side walls of the feed tank corresponding to the positions of the inner storage tank. Each glass frame contains transparent glass and is rotatably connected to the feed tank, with a sealing gasket at the connection point. A rotating baffle is rotatably mounted on the side of the inner storage tank closest to the glass frame. The lower end of the rotating baffle is rotatably connected to the inner storage tank, and the upper end has a locking block that engages with the inner storage tank. This structure facilitates observation of the remaining feed level in the inner storage tank, and the dual-opening design of the glass frame and the rotating baffle allows for quick and easy feed replenishment.

[0016] Furthermore, a pressure sensor is installed at the bottom of the inner storage tank, and a remote control terminal is installed inside the feed tank. The pressure sensor can transmit the obtained pressure information to the remote control terminal. Through the pressure monitoring system, the feed content in each inner storage tank can be monitored in real time, facilitating precise control of the mixed feed ratio.

[0017] Furthermore, a second motor is provided on the outer side of the upper guide component. The output end of the second motor is fixedly connected to the rotating base. The second motor is a bidirectional motor. The second motor drives the rotating base to rotate in both directions, causing the spreading gun body to vibrate continuously, so that the sprayed feed is more evenly distributed on the surface of the aquaculture pond.

[0018] The method for spreading aquaculture feed using the above-mentioned device includes the following steps: S1: Different types of feed are classified and stored in multiple sets of inner storage tanks. The feed content is monitored by a pressure sensor installed at the bottom of each inner storage tank and transmitted to the remote control terminal. S2: Start the first motor at the top of the corresponding inner storage tank to drive the inner agitator to rotate. The inner agitator drives the lower rotating disk to rotate, so that the discharge hole on the lower rotating disk coincides with the discharge hole on the upper fixed disk, and the feed falls from the gap between the adjacent connecting plates. The lower rotating disk drives the conical baffle to rotate synchronously, and the material dispersing rod on it crushes the feed. The contact rod on the lower surface of the conical baffle continuously contacts the cam, causing the conical baffle to vibrate up and down. The crushed feed can flow out from the bottom of the discharge mechanism and enter the mixing component under the action of vibration. S3: By driving the inner guide seat to rotate, the inner stirring shaft on the upper surface of the inner guide seat is driven to mix the feed. The mixed feed gathers towards the center along the inner guide seat and accumulates at the stacking hole. S4: The dehumidification equipment removes moisture from the inside of the feed tank, the feed pipe, and the spreader gun through the ventilation holes; the extracted moisture enters the dehumidification chamber through the air chamber, is dried by the desiccant, and is discharged through the filter. S5: The spiral feeder conveys the mixed feed upward along the feed pipe to the upper guide; the feed enters the spreader body through the retractable hose, the rear pusher serves as the first-stage pushing power, and the front pusher serves as the second-stage pushing power to propel the feed to be sprayed. S6: When the pressurized feed passes through the positioning ring, the cutting blade inside the positioning ring cuts the feed; the second motor drives the rotating seat to rotate forward and backward, causing the spreading gun body to vibrate up and down continuously, so as to achieve uniform spreading of the feed. S7: Based on actual breeding needs and feed content information fed back by pressure sensors, adjust the discharge volume of each inner storage tank to achieve the spreading of mixed feed with different ratios. Repeat S2 to S6 to complete multiple spreading operations. After spreading is completed, the shrink baffle automatically gathers towards the center to block the outlet of the spreading gun.

[0019] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows: This invention employs a double-layer protective structure combining a feed tank and multiple sets of inner storage tanks. The outer feed tank effectively isolates the inner storage tanks from moisture in the external environment, while the multiple sets of inner storage tanks provide independent protective space for the feed. This double-layer protective design significantly reduces the possibility of moisture intrusion. Combined with a complete active circulation dehumidification system (especially for dehumidifying the feed pipe and spreading gun), it effectively prevents the feed from becoming damp, clumping, and deteriorating, ensuring feed quality and continuous operation of the equipment.

[0020] This invention designs a multi-stage synergistic crushing mechanism, including: an internal stirring component in the inner storage tank initially stirring and dispersing the stored feed; a dispersing rod on the conical baffle rotating with the conical baffle to perform rotary shearing crushing of falling feed clumps; a filter screening between adjacent connecting plates, allowing only properly crushed small feed particles to pass through the gaps, ensuring the uniformity of the discharged feed particles; and continuous contact between the contact rod and the convex plate causing the conical baffle to vibrate at high frequency, further promoting the separation of feed clumps and accelerating the flow of crushed feed from the discharge hole. This multi-stage synergistic crushing mechanism can more thoroughly crush feed clumps, effectively preventing clumped feed from entering the spreading and feeding components, avoiding problems such as blockage of the spreading system and equipment downtime, and significantly improving the reliability and continuity of equipment operation.

[0021] This invention presents an active circulating dehumidification system. The dehumidification device, through ventilation holes at the bottom of the feed stack and a lower empty chamber, can continuously dehumidify the interior of the feed tank, especially the feed pipe and the spreader gun. The extracted moisture is introduced into the dehumidification chamber inside the connecting column within the air chamber in the support base. Under the action of the desiccant filled in the dehumidification chamber, the moisture in the air is absorbed and dried. The dried gas is then filtered through a filter and discharged into the air. The active circulating dehumidification mechanism is more effective and continuously stable. In particular, the arrangement of the dehumidification device below the feed pipe can create a forced dehumidification effect along the critical path of feed transportation, effectively preventing feed from sticking and accumulating inside the feed pipe and spreader gun due to excessive moisture, ensuring unobstructed flow of the spreading system and significantly reducing the risk of equipment blockage.

[0022] This invention innovatively employs a two-stage gas pressurization structure in the feeding component, including a rear-push component located within the upper guide component to initially pressurize the feed entering the feeding system, and a front-push component located within the feeding gun body to further pressurize the feed, thereby generating greater pushing force and higher spray speed, significantly increasing the feed spraying distance; at the same time, it utilizes the vibration and uniform distribution mechanism of the feeding gun body to achieve fan-shaped or diffused spraying, effectively expanding the coverage area and improving the uniformity of feed distribution.

[0023] This invention sets up multiple independent inner storage tanks inside the feed tank, and equips each inner storage tank with a pressure sensor at the bottom. The pressure sensor can monitor the feed content in each inner storage tank in real time and transmit the information to a remote control terminal. Operators can control the discharge amount of various feeds by controlling the start and stop of the first motor and the running time of each inner storage tank according to actual breeding needs, thereby realizing flexible adjustment of the mixed feed ratio and greatly improving the flexibility and scientific nature of breeding management.

[0024] This invention features multiple sets of cutting blades within a positioning ring at the front end of the feed dispenser. These blades cut the sprayed feed clumps, ensuring the feed is dispensed in appropriately sized particles, thus preventing localized overfeeding and feed waste caused by large clumps of feed. Simultaneously, a shrink-fitting baffle surrounding the end of the positioning ring away from the forward-pushing component provides adaptive protection, effectively preventing external moisture from entering the feed pipe and feed tank through the feed dispenser.

[0025] This invention integrates functions such as storage, dehumidification, crushing, proportioning, conveying, pressurization, and uniform distribution. It has a high degree of automation, a compact and reasonable structure, reduces manual intervention, and improves overall operational efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal storage tank of the present invention; Figure 3 This is a cross-sectional view of the structure of the present invention; Figure 4 For the present invention Figure 3 A partial structural diagram at point A in the middle; Figure 5 For the present invention Figure 3 A partial structural diagram at point B; Figure 6 For the present invention Figure 3 A partial structural diagram at point C; Figure 7 This is a cross-sectional view of the inner storage tank in this invention; Figure 8 For the present invention Figure 7 A partial schematic diagram of the structure at point D.

[0027] Explanation of reference numerals in the attached drawings: 1. Feed tank body; 2. Glass frame; 3. Support base; 4. Side connecting column; 5. Filter element; 6. Dehumidifier; 7. Inner storage tank; 8. Rotating baffle; 9. Upper guide component; 10. Spreading gun body; 11. Rotating seat; 12. Rotating motor; 13. Inner guide seat; 14. Inner stirring shaft; 15. Dehumidification chamber; 16. Feeding pipe; 17. Screw feeder; 18. Front pusher component; 19. Rear pusher component; 20. Inner stirring component; 21. Lower empty chamber; 22. Ventilation hole; 23. Stacking hole; 24. Shrinkable baffle; 25. Positioning ring; 26. Cutting blade; 27. Upper fixed plate; 28. Lower rotating plate; 29. ​​Conical baffle; 30. Distributing rod; 31. Protruding plate; 32. Discharge hole; 33. Connecting plate; 34. Abutment rod. Detailed Implementation

[0028] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0029] Example 1: As Figures 1 to 8 As shown, the present invention provides a feed spreading device for aquaculture, including a feed tank 1, multiple sets of internal storage tanks 7, a mixing component, a spreading and feeding component, a dehumidifying device 6, and a discharging mechanism.

[0030] I. Overall Structural Layout like Figure 1 and Figure 3 As shown, the feed tank 1 is the main external structure of the entire device, and it adopts a cylindrical or near-cylindrical design. The preferred material is corrosion-resistant and weather-resistant stainless steel or engineering plastic. A support base 3 is fixedly installed at the bottom of the feed tank 1. The support base 3 serves to support the entire device and fix it to the ground or the edge of the breeding pond.

[0031] Multiple sets of inner storage tanks 7 are equidistantly arranged in a circular pattern at the upper part of the feed tank 1. In this embodiment, 3 to 6 sets of inner storage tanks 7 are preferably provided. The multiple sets of inner storage tanks 7 are evenly distributed in a circle, and the spacing between each set of inner storage tanks 7 is equal. This layout not only ensures full utilization of the internal space of the feed tank 1, but also facilitates the even falling of feed from each inner storage tank 7 into the mixing component. Each set of inner storage tanks 7 is an independent storage container that can store different types or different formulations of feed, such as feed with different protein content, feed with different particle sizes, or special feed for different growth stages.

[0032] II. Structure and Working Principle of the Discharge Mechanism like Figure 2 , Figure 7 and Figure 8 As shown, each inner storage tank 7 is equipped with a discharge mechanism at its bottom, which includes a feeding plate and a dispersing component.

[0033] (1) Structure of blanking plate like Figure 8 As shown, the feeding plate includes an upper fixed plate 27 and a lower rotating plate 28. The upper fixed plate 27 is fixedly installed at the bottom of the inner storage tank 7 and is fixedly connected to the inner storage tank 7 by bolts or welding. The upper fixed plate 27 has a disc-shaped structure with a plurality of feeding holes evenly distributed on it. The number of feeding holes is preferably 4 to 8, and the diameter of the feeding holes is determined according to the size of the feed particles, preferably 10 mm to 30 mm.

[0034] The lower rotating disk 28 is the same size as or slightly smaller than the upper fixed disk 27, and is rotatably connected to the lower surface of the upper fixed disk 27. In this embodiment, the lower rotating disk 28 is rotatably connected to the upper fixed disk 27 via a central bearing. The bearing is installed in a bearing seat at the center of the upper fixed disk 27, and the center of the lower rotating disk 28 is fixed to the inner ring of the bearing, allowing the lower rotating disk 28 to rotate freely relative to the upper fixed disk 27. The lower rotating disk 28 also has the same number and size of feeding holes as the upper fixed disk 27, and the circumferential distribution of the feeding holes corresponds to the feeding holes of the upper fixed disk 27.

[0035] When the lower rotating disk 28 rotates, the position of its discharge hole changes. When the discharge hole on the lower rotating disk 28 is aligned with the discharge hole on the upper fixed disk 27, the feed in the inner storage tank 7 can fall through the aligned discharge hole; when the lower rotating disk 28 rotates to misalign its discharge hole with the discharge hole on the upper fixed disk 27, the discharge hole is blocked, and the feed cannot fall. By controlling the rotation angle and dwell time of the lower rotating disk 28, the amount of feed can be precisely controlled, thereby achieving precise adjustment of the mixed feed ratio.

[0036] (2) Structure of the upper stirring mechanism like Figure 7 , Figure 8 As shown, the upper stirring mechanism includes an inner stirring component 20, which is a vertically arranged stirring shaft. Its lower end is fixedly installed at the center of the upper surface of the lower rotating disk 28, forming a rigid connection with the lower rotating disk 28 by bolts or welding. The upper end of the inner stirring component 20 passes through the internal space of the inner storage tank 7 and is rotatably connected to the top of the inner storage tank 7. Specifically, the upper end of the inner stirring component 20 is installed in a bearing seat at the top of the inner storage tank 7 via a bearing, allowing it to rotate freely while remaining concentric.

[0037] Multiple sets of stirring blades are fixedly installed along the height direction on the shaft of the inner stirring component 20. The stirring blades are preferably spiral or inclined plate-shaped structures, and the number of stirring blades is preferably 3 to 5 sets, with each set including 2 to 4 blades. When the stirring blades rotate with the inner stirring component 20, they can stir and push the feed in the inner storage tank 7, preventing the feed from caking during storage, and assisting the feed to move to the lower feed hole when discharging.

[0038] A first motor is installed at the top of the inner storage tank 7. The first motor is preferably an adjustable-speed motor or a stepper motor, and its output end is fixedly connected to the upper end of the inner stirring component 20 via a coupling. The first motor drives the inner stirring component 20 to rotate. Since the lower end of the inner stirring component 20 is fixedly connected to the lower rotating disk 28, the rotation of the inner stirring component 20 synchronously drives the lower rotating disk 28 to rotate, thereby controlling the opening and closing of the feed outlet. In this embodiment, the rotational speed of the first motor is preferably 10 to 60 revolutions per minute, which can both fully stir the feed and precisely control the feed amount.

[0039] (3) Structure of the lower stirring mechanism like Figure 7 and Figure 8 As shown, the lower stirring mechanism includes a conical baffle 29 and its auxiliary components. The conical baffle 29 is located below the lower rotating disk 28 and has an inverted conical structure with the tip of its conical surface pointing downwards. The conical baffle 29 is connected to the lower rotating disk 28 via a connecting structure on its upper surface, and its outer peripheral edge is rotatably connected to the lower inner wall of the inner storage tank 7 via bearings. In this way, the conical baffle 29 can rotate with the lower rotating disk 28 and also generate relative motion with respect to the inner storage tank 7 during rotation.

[0040] The cone baffle 29 has a discharge hole 32 at its tip. The diameter of the discharge hole 32 is preferably 20mm to 50mm. The crushed feed finally falls into the mixing component through the discharge hole 32.

[0041] Multiple sets of connecting plates 33 are evenly connected around the discharge hole 32 on the upper surface of the conical baffle 29, preferably 4 to 8 sets. Each set of connecting plates 33 is a telescopic plate structure, specifically a spring plate, flexible plate, or telescopic rod structure. The upper end of the connecting plate 33 is fixedly connected to the lower surface edge of the lower rotating disk 28 by a hinge or flexible connection, and the lower end of the connecting plate 33 is connected to the upper surface of the conical baffle 29.

[0042] Because the connecting plate 33 has a telescopic feature, when the rotating disk 28 rotates, the connecting plate 33 can transmit rotational torque to the conical baffle 29, causing the conical baffle 29 to rotate synchronously. At the same time, since the conical baffle 29 will vibrate up and down during rotation due to the action of the abutment rod 34 and the cam 31, the telescopic feature of the connecting plate 33 can adapt to this vibration movement, avoiding stress concentration and structural damage caused by rigid connection.

[0043] A gap is formed between two adjacent sets of connecting plates 33, which serves as a filter. Feed falling from the inner storage tank 7 is initially broken up by the inner agitator 20 and the dispersing rod 30, then falls into the space between the lower rotating disc 28 and the conical baffle 29. Only feed particles broken to a sufficiently small size can pass through the gap between the adjacent connecting plates 33, fall onto the conical surface of the conical baffle 29, and slide along the conical surface towards the discharge hole 32. Larger, insufficiently broken pieces of feed cannot pass through the gap and remain in the space above the connecting plates 33 for further crushing. The width of the gap between the connecting plates 33 can be adjusted according to the required feed particle size, preferably from 5mm to 15mm.

[0044] Multiple sets of material distribution rods 30 are fixedly installed on the upper surface edge of the conical baffle 29, i.e., around the large end of the conical surface. The material distribution rods 30 are preferably rod-shaped or sheet-shaped, evenly distributed along the circumference of the conical baffle 29, and the number is preferably 6 to 12 sets. Each set of material distribution rods 30 can be a single rod or a group of multiple rods. The material distribution rods 30 extend upwards perpendicular to the conical surface of the conical baffle 29, with an extension height preferably between 30 mm and 80 mm.

[0045] As the conical baffle 29 rotates with the lower rotating disk 28, the feed bar 30 rotates within the space between the lower rotating disk 28 and the conical baffle 29, continuously stirring and crushing the feed within that space. The rotational shearing action of the feed bar 30 effectively breaks up feed clumps, especially for feed that has slightly coagulated due to moisture; the crushing effect of the feed bar 30 is particularly significant.

[0046] At least two abutment rods 34 are symmetrically installed on the lower surface of the conical baffle 29, i.e., the outer surface of the cone. In this embodiment, it is preferable to install two abutment rods 34, which are symmetrically distributed at 180 degrees in the circumferential direction of the lower surface of the conical baffle 29. The abutment rods 34 can be made of metal rods or wear-resistant plastic rods, extending downward perpendicular to the conical surface, and their lower ends are arc surfaces or spherical surfaces to reduce wear when in contact with the cam 31.

[0047] A convex plate 31 is fixedly installed on the lower surface of the inner storage tank 7, that is, at the inward protrusion of the bottom of the inner storage tank 7. The convex plate 31 is an annular protrusion structure, and its upper surface is higher than other areas of the lower surface of the inner storage tank 7. The circumferential diameter of the convex plate 31 matches the rotation trajectory radius of the lower end of the abutment rod 34, so that when the conical baffle 29 rotates, the lower end of the abutment rod 34 can continuously abut against the upper surface of the convex plate 31.

[0048] The upper surface of the cam 31 is designed with an undulating structure, such as a wave-like, sawtooth-like, or multi-protrusion shape. When the abutment rod 34 slides on the upper surface of the cam 31 as the conical baffle 29 rotates, the undulating structure of the upper surface of the cam 31 causes the abutment rod 34 to be subjected to a periodic upward compressive force. This compressive force forces the conical baffle 29 to vibrate in the up-down direction. The vibration frequency of the conical baffle 29 depends on the number of undulating structures on the upper surface of the cam 31 and the rotational speed of the conical baffle 29. In this embodiment, the vibration frequency is preferably between 5Hz and 20Hz.

[0049] The up-and-down vibration of the conical baffle 29 produces two beneficial effects: First, the vibration can further promote the separation and breaking of feed agglomerates. The inertial force generated by the vibration causes relative displacement inside the agglomerates, accelerating the disintegration of the agglomerates. Second, the vibration can prevent small particles of feed after crushing from sticking and accumulating on the surface of the conical baffle 29 or at the discharge hole 32, accelerating the flow of feed from the discharge hole 32 and improving the discharge efficiency.

[0050] (4) Working process of the discharge mechanism When it is necessary to discharge material from a certain inner storage tank 7, the first motor at the top of the inner storage tank 7 is started. The first motor drives the inner agitator 20 to rotate, and the agitator blades on the inner agitator 20 agitate the feed in the inner storage tank 7, making the feed loose and moving towards the downward feed hole.

[0051] The rotation of the inner agitator 20 synchronously drives the lower rotating disk 28 to rotate. When the lower rotating disk 28 rotates and its discharge hole aligns with the discharge hole on the upper fixed disk 27, the feed in the inner storage tank 7 falls from the aligned discharge hole under the action of gravity. The feed first passes through the agitator blade area of ​​the inner agitator 20, where it undergoes initial agitation and dispersion, and then enters the space between the lower rotating disk 28 and the conical baffle 29 through the discharge hole.

[0052] The rotation of the lower rotating disk 28 is transmitted to the conical baffle 29 through the connecting plate 33, causing the conical baffle 29 to rotate synchronously. The feed distribution rod 30 on the upper surface edge of the conical baffle 29 rotates with the conical baffle 29, performing rotary shearing crushing on the feed falling into the space. The impact and shearing action of the feed distribution rod 30 can gradually break up feed clumps into small particles.

[0053] Under the combined action of gravity, centrifugal force, and the push of the feed rod 30, the crushed feed particles move towards the gap between adjacent connecting plates 33. Feed particles smaller than the gap width can pass through the gap smoothly and fall onto the conical surface of the conical baffle 29; while feed particles larger than the gap width remain above the connecting plate 33 and are further crushed by the feed rod 30 until they are crushed to a size that can pass through the gap.

[0054] Feed falling through the gap onto the conical surface of the conical baffle 29 slides along the discharge hole 32 at the center of the conical surface under the influence of gravity and the inclination angle of the conical surface. During the sliding process, the up-and-down vibration of the conical baffle 29 accelerates the movement speed of the feed and prevents the feed from accumulating on the conical surface. Finally, the properly crushed feed falls from the discharge hole 32 and enters the mixing assembly at the bottom of the feed tank 1.

[0055] Simultaneously, the abutment rod 34 on the lower surface of the conical baffle 29 rotates with the conical baffle 29, and its lower end continuously slides on the upper surface of the cam 31. Due to the undulating structure of the upper surface of the cam 31, the abutment rod 34 is subjected to periodic upward compression, causing the conical baffle 29 to vibrate continuously up and down. This vibration persists throughout the entire discharge process, ensuring smooth feed flow and unobstructed discharge hole 32.

[0056] By controlling the running time and speed of the first motor, the discharge volume of each inner storage tank 7 can be precisely controlled. For example, the longer the running time, the larger the discharge volume; the faster the speed, the more times the discharge holes overlap per unit time, and the faster the discharge speed. Combined with the monitoring of the feed content in the inner storage tank 7 by the pressure sensor, precise feed ratio control can be achieved.

[0057] III. Structure and Working Principle of the Mixing Component like Figure 3 and Figure 5 As shown, the mixing assembly is located at the bottom of the feed tank 1, and its core component is the inner guide seat 13.

[0058] (1) Internal guide seat structure The inner guide seat 13 is a disc-shaped or shallow conical disc-shaped structure, rotatably installed in the lower internal space of the feed tank 1. The outer diameter of the inner guide seat 13 is slightly smaller than the inner diameter of the feed tank 1, maintaining an appropriate gap with the inner wall of the feed tank 1. The lower end of the inner guide seat 13 is a central shaft or bushing structure, which is inserted into the support base 3 and rotatably connected to the support base 3 through bearings. This installation method allows the inner guide seat 13 to rotate horizontally around its central axis.

[0059] The upper surface of the inner feed guide 13 is designed as a conical surface inclined towards the center. Specifically, the outer periphery of the upper surface of the inner feed guide 13 is the highest, gradually decreasing towards the center to form a concave conical or funnel-shaped surface converging towards the center. This inclined design ensures that feed falling at any position on the upper surface of the inner feed guide 13 will slide and converge towards the center under the action of gravity. The inclination angle of the conical surface is preferably between 15 and 45 degrees, which ensures both smooth sliding of the feed and provides sufficient mixing space.

[0060] Multiple sets of internal stirring shafts 14 are fixedly installed on the upper surface of the inner guide seat 13. The internal stirring shafts 14 are vertically arranged shafts or plate-like structures, with their lower ends fixed to the upper surface of the inner guide seat 13 and their upper ends extending upwards. The number of internal stirring shafts 14 is preferably 4 to 8 sets, evenly distributed along the circumference of the inner guide seat 13. Each set of internal stirring shafts 14 can be a single shaft or a group of shafts. The height of the internal stirring shafts 14 is preferably 80mm to 200mm, and the selection of the height should take into account the feed stacking height and mixing effect.

[0061] The inner stirring shaft 14 can be straight, spiral, or have lateral blades. When the inner guide seat 13 rotates, the inner stirring shaft 14 rotates accordingly, stirring and mixing the feed from different inner storage tanks 7 that falls onto the inner guide seat 13. During rotation, the inner stirring shaft 14 continuously agitates the feed, ensuring that different types of feed are thoroughly and evenly mixed.

[0062] A piling hole 23 is provided at the center of the inner guide seat 13, that is, at the lowest point of the conical concave surface. The piling hole 23 is a circular or nearly circular opening, preferably with a diameter of 60 mm to 150 mm. The thoroughly mixed feed converges towards the center along the inclined surface of the inner guide seat 13 and eventually accumulates at the position of the piling hole 23. The size of the piling hole 23 must be large enough to accommodate a certain amount of mixed feed to form a buffer zone, but also avoid being too large to cause excessive feed accumulation.

[0063] At the bottom of the material stacking hole 23, i.e., at its lower edge, multiple sets of ventilation holes 22 are provided. The ventilation holes 22 are small holes, preferably 5mm to 15mm in diameter, and preferably 6 to 12 in number, evenly distributed along the circumference of the bottom of the material stacking hole 23. The ventilation holes 22 connect downwards to the space below the inner guide seat 13, serving as channels for the dehumidification system to extract moisture.

[0064] (2) Drive mechanism of inner guide seat like Figure 3 As shown, at the lower end of the feed tank 1, inside the support base 3, a drive mechanism is provided for driving the inner guide seat 13 to rotate. This drive mechanism includes a drive motor, a transmission gear set, and meshing gears.

[0065] The drive motor is fixedly mounted on a mounting base inside the support base 3. The drive motor is preferably an adjustable AC motor or DC motor, and the power is selected according to the size of the inner guide seat 13 and the amount of feed, generally from 0.5kW to 2kW. A drive gear is fixedly mounted on the output shaft of the drive motor.

[0066] The lower end bushing of the inner guide seat 13 has a gear ring machined on its outer surface, or a gear ring is fixedly mounted on the bushing to form a driven gear. The driving gear and the driven gear are connected by meshing through an intermediate transmission gear set. In this embodiment, two sets of meshing gears are preferably used for transmission. This gear transmission method can achieve the effect of speed reduction and torque increase, allowing the inner guide seat 13 to rotate at a lower speed but with sufficient torque to ensure the mixing effect.

[0067] The rotational speed of the inner guide seat 13 is preferably between 5 rpm and 30 rpm. Too high a rotational speed will cause the feed to be thrown to the outer periphery due to centrifugal force, affecting its convergence towards the center; too low a rotational speed will reduce the mixing efficiency. An appropriate rotational speed can both fully mix the feed and allow the feed to converge smoothly towards the stacking hole 23.

[0068] (3) Working process of the mixing component Crushed feed from the discharge mechanisms of each inner storage tank 7 falls onto the upper surface of the inner guide seat 13 from different positions. Since each inner storage tank 7 is circumferentially distributed inside the feed tank 1, the feed landing points are distributed at different circumferential positions on the upper surface of the inner guide seat 13.

[0069] After the drive motor starts, it drives the inner guide seat 13 to rotate through the gear transmission mechanism. The inner stirring shaft 14 on the upper surface of the inner guide seat 13 rotates synchronously with the inner guide seat 13. During the rotation, the inner stirring shaft 14 continuously pushes, turns and stirs the feed. Different types of feed from different inner storage tanks 7 are mixed together under the action of the inner stirring shaft 14 to achieve homogenization.

[0070] Meanwhile, the conical surface design of the inner guide seat 13, which is inclined towards the center, allows the feed to gradually move towards the center during the mixing process. Under the combined action of gravity, centrifugal force, and the push of the inner stirring shaft 14, the feed spirals along the inclined surface towards the stacking hole 23.

[0071] The thoroughly mixed feed eventually converges and accumulates at the center of the feed hole 23 in the inner feed guide seat 13, forming a mixed feed pile. The feed pile at the feed hole 23 serves as a buffer zone, providing a stable feed supply for the subsequent feeding component, and the pressure generated by the accumulation helps the feed enter the feed pipe 16 of the feeding component.

[0072] The degree of mixing can be controlled by adjusting the speed of the drive motor and the rotation time of the inner guide seat 13. Generally, 3 to 5 rotations of the inner guide seat 13 can achieve thorough and uniform mixing of the feed.

[0073] IV. Structure and Working Principle of Dehumidification System like Figure 3As shown, the present invention designs a dehumidification system, including a dehumidification device 6, a ventilation hole 22, a lower empty chamber 21, an air chamber, a side connecting column 4, a dehumidification chamber 15, a desiccant, and a filter element 5.

[0074] (1) Dehumidification equipment and air circuit connection The dehumidification device 6 is fixedly installed inside the support base 3. The dehumidification device 6 can be an air pump, a fan, or other equipment capable of generating negative pressure to extract gas. The power of the dehumidification device 6 is selected according to the volume of the feed tank 1 and the dehumidification requirements, preferably 50W to 200W.

[0075] like Figure 5 As shown, the bottom of the material stacking hole 23 of the inner guide seat 13 has multiple sets of ventilation holes 22. Below the ventilation holes 22 is the lower cavity 21 formed between the lower end of the inner guide seat 13 and the support base 3. The lower cavity 21 is a relatively closed space that communicates with the interior of the support base 3.

[0076] The air intake of the dehumidifier 6 is connected to the lower empty chamber 21. When the dehumidifier 6 is working, a negative pressure is generated in the lower empty chamber 21. This negative pressure is transmitted to the stacking hole 23 through the ventilation hole 22, and then to the internal space of the feed tank 1. Under the action of negative pressure, the air inside the feed tank 1, including humid air, is drawn into the lower empty chamber 21 through the ventilation hole 22.

[0077] The key feature of this dehumidification arrangement is that the dehumidification device 6 is located directly below the feed pipe 16, the feed pile hole 23 is the feed source location of the feed pipe 16, and the ventilation hole 22 is directly aligned with the feed pile hole 23 and the lower end of the feed pipe 16. Therefore, the area with the strongest dehumidification effect is precisely the critical part of feed conveying, allowing for focused dehumidification of the feed pipe 16 and the interior of the feed gun 10, areas where feed is most prone to sticking and clogging due to high humidity. This targeted dehumidification design significantly improves the moisture-proof effect.

[0078] (2) Dehumidification chamber structure like Figure 1 As shown, multiple sets of side connecting columns 4 are equidistantly arranged around the edge of the support base 3, and the number of side connecting columns 4 is preferably 4 to 8 sets. The side connecting columns 4 serve both as structural supports for the feed tank 1 and as an important component of the dehumidification system.

[0079] like Figure 3 As shown, each side connecting column 4 has a hollow interior, forming a dehumidification chamber 15. The dehumidification chamber 15 is a vertical cylindrical or square cavity, its internal space used to fill desiccant and accommodate airflow. The volume of the dehumidification chamber 15 is determined according to dehumidification requirements, typically ranging from 1 liter to 5 liters per chamber.

[0080] A filter element 5 is fixedly installed at the upper end of the dehumidification chamber 15. The filter element 5 can be a metal mesh, filter cloth, sponge, or other porous filter material. The function of the filter element 5 is to prevent the desiccant particles in the dehumidification chamber 15 from flowing out with the airflow, and to filter the exhaust gas to remove any dust or impurities that may be carried, ensuring that the exhaust gas is clean.

[0081] The dehumidification chamber 15 is filled with a desiccant. The desiccant can be silica gel, calcium oxide, activated alumina, molecular sieves, or other hygroscopic materials. In this embodiment, silica gel desiccant is preferred because it has advantages such as strong moisture absorption capacity, recyclability, non-corrosiveness, and safety and environmental friendliness. The amount of desiccant filled in each dehumidification chamber 15 is preferably 0.5 kg to 2 kg.

[0082] The desiccant can be filled in granular bulk or placed in a breathable mesh bag and then put into the dehumidification chamber 15. The latter method facilitates the replacement and regeneration of the desiccant.

[0083] (3) Air chamber connection structure The support base 3 has multiple air chambers inside. The air chambers are pipes or channels inside the support base 3, used to connect the dehumidification equipment 6 and the bottom of each dehumidification chamber 15.

[0084] Specifically, the exhaust port of the dehumidifier 6 is connected to the inlet of the dehumidification chamber 15 at the bottom of each side connecting column 4 through the air chamber. The air chamber can be connected by an independent pipeline, that is, a main pipeline is led out from the exhaust port of the dehumidifier 6 and then branched to each dehumidification chamber 15; or it can be connected by a cavity, that is, a common air cavity is formed inside the support base 3, and the exhaust port of the dehumidifier 6 and the bottom of each dehumidification chamber 15 are connected to this common air cavity.

[0085] To ensure that each dehumidification chamber 15 receives a uniform airflow distribution, a flow regulating valve or throttling orifice can be installed in the air chamber system to balance the airflow of each path.

[0086] (4) Working process of the dehumidification system After the dehumidification device 6 is started, its air extraction port generates negative pressure in the lower empty chamber 21. The negative pressure is transmitted to the material stacking hole 23 and the inside of the feed tank 1 through the ventilation hole 22. The humid air inside the feed tank 1 is extracted, enters the lower empty chamber 21 through the ventilation hole 22, and is then sucked in by the dehumidification device 6.

[0087] The dehumidifier 6 pressurizes the drawn-in humid air and discharges it from the exhaust port. The discharged moisture is then guided through the air chamber into the dehumidification chamber 15 at the bottom of each side connecting column 4. The moisture enters from the bottom of the dehumidification chamber 15 and flows upward through the filled desiccant layer.

[0088] As the air flows through the desiccant layer, the moisture in the air is absorbed by the desiccant. Desiccants such as silica gel have a large number of micropores and a large specific surface area, enabling them to effectively adsorb water molecules from the air. After being treated with the desiccant, the moisture is transformed into dry air.

[0089] The dried air continues to rise, passing through the filter element 5 at the top of the dehumidification chamber 15. The filter element 5 removes any desiccant dust and other impurities that may be carried in the air. The filtered clean and dry air is then discharged from the filter element 5 and released into the surrounding atmosphere.

[0090] The entire dehumidification process forms a cycle: moisture inside feed tank 1 → ventilation hole 22 → lower empty chamber 21 → dehumidification device 6 → air chamber → dehumidification chamber 15 → desiccant absorbs moisture → filter element 5 → discharge. This cycle continues, constantly extracting and dehumidifying the moisture inside feed tank 1, keeping the inside of feed tank 1, especially the inside of feed pipe 16 and feed gun body 10, dry.

[0091] The dehumidifier 6 can operate continuously or intermittently. In high-humidity environments or rainy days, the operating time of the dehumidifier 6 can be increased; in dry weather, the operating time can be appropriately reduced to save energy. By monitoring the humidity inside the feed tank 1 with a humidity sensor, the start and stop of the dehumidifier 6 can be automatically controlled, achieving intelligent dehumidification.

[0092] Desiccants become saturated after absorbing a certain amount of moisture and require regeneration or replacement. Silica gel desiccants can be regenerated by heating, evaporating and releasing the absorbed moisture to restore their absorbent capacity. The regeneration temperature is typically 120℃ to 150℃, and the regeneration time is 2 to 4 hours. Through regular regeneration, the desiccant can be reused, reducing operating costs.

[0093] V. Structure and Working Principle of the Material Spreading and Feeding Component like Figure 1 , Figure 3 and Figure 5 As shown, the feed spreading and feeding device is a key system that transports the mixed feed from the bottom of the feed tank 1 through the stacking hole 23 to the top and sprays it out. It includes the feed pipe 16, the upper guide 9, the feed spreading gun body 10 and related components.

[0094] (1) Feeding tube and spiral feeding parts The feeding pipe 16 is a vertical or nearly vertical tubular structure, with its axis coinciding with or close to the central axis of the feed tank 1. The feeding pipe 16 is rotatably mounted in the middle of the feed tank 1. Specifically, the feeding pipe 16 is mounted on the internal support structure of the feed tank 1 via bearings and can rotate around its own axis. This rotatable connection is to accommodate the directional adjustment of the feed gun body 10.

[0095] The lower end of the feeding pipe 16 is located directly above the stacking hole 23, with an appropriate distance between them, preferably 20mm to 80mm. The diameter of the opening at the lower end of the feeding pipe 16 is slightly smaller than or equal to the diameter of the stacking hole 23, ensuring that the feeding pipe 16 can effectively suck up the feed piled up at the stacking hole 23.

[0096] The inner diameter of the feeding pipe 16 is determined according to the feed conveying capacity, preferably 50mm to 120mm, and the pipe wall thickness is preferably 3mm to 8mm. The material of the feeding pipe 16 is preferably stainless steel, hard plastic, or other wear-resistant and corrosion-resistant materials. The length of the feeding pipe 16 depends on the height of the feed tank 1, and is generally 1 meter to 3 meters.

[0097] The feeding pipe 16 is equipped with a spiral feeding component 17. The spiral feeding component 17 is a spiral structure formed by the rotation of spiral blades around a central axis, similar to an Archimedes spiral or an auger. The central axis of the spiral feeding component 17 is concentric with the feeding pipe 16, and the outer edge of the spiral blades is in contact with the inner wall of the feeding pipe 16. The gap between the two is preferably less than 5 mm to reduce feed backflow.

[0098] The pitch of the spiral feeder 17, i.e., the axial distance between adjacent spiral blades, is determined according to the feed particle size and conveying efficiency, and is preferably 40mm to 100mm. The thickness of the spiral blades is preferably 2mm to 5mm, and the material of the spiral blades is the same as or similar to that of the feed tube 16 to ensure good fit and wear resistance.

[0099] The upper end of the feeding pipe 16 is fixedly connected to the upper guide member 9. The upper guide member 9 is rotatably connected to the upper surface of the feed tank 1. Specifically, the upper guide member 9 is connected to the top of the feed tank 1 through a flange and a bearing mounting seat, and can rotate around a vertical axis. Since the upper end of the feeding pipe 16 is fixedly connected to the upper guide member 9, the feeding pipe 16 rotates when the upper guide member 9 rotates.

[0100] (2) Drive system of screw feeder A rotary motor 12 is fixedly mounted on the upper surface of the upper guide component 9. The rotary motor 12 is preferably an adjustable speed motor, and its power is selected according to the feed conveying volume and conveying height, preferably from 0.5kW to 3kW. The output end of the rotary motor 12 is fixedly mounted to the upper central shaft of the screw feeder 17 via a coupling, or it can be connected via a reducer to obtain greater torque and a more suitable speed.

[0101] The rotating motor 12 drives the screw feeder 17 to rotate. The rotational speed of the screw feeder 17 is preferably between 60 rpm and 300 rpm. The selection of the rotational speed should balance the conveying efficiency and the integrity of the feed. Too high a speed may cause the feed to break, while too low a speed will result in low conveying efficiency.

[0102] When the screw feeder 17 rotates, its helical blades push the feed inside the feed pipe 16 upwards axially. The feed enters from the lower end of the feed pipe 16, spirals upwards under the push of the helical blades, similar to the movement of a screw in a nut, and finally exits from the upper end of the feed pipe 16. This screw conveying method can stably and continuously convey feed, unaffected by changes in the height of the feed accumulation.

[0103] (3) Connection between the upper guide component and the spreading gun body The upper guide 9 has a cavity structure, and its internal space is connected to the upper end of the feeding pipe 16, forming a space for feed collection and turning. The feed output from the upper end of the feeding pipe 16 enters the cavity of the upper guide 9, where it can undergo direction change and temporary buffering.

[0104] The upper guide 9 has a discharge port on its side or top surface, which is connected to the lower end of the spreading gun body 10 via a retractable hose. The retractable hose is made of flexible rubber hose, corrugated pipe or other flexible tubing, and its inner diameter matches the discharge port of the upper guide 9 and the inlet of the spreading gun body 10, preferably 40mm to 100mm.

[0105] The length of the telescopic hose is preferably between 300mm and 800mm. This length is necessary to ensure that the feed gun body 10 has sufficient range of motion, while also preventing excessive length that could cause feed to accumulate inside the hose. Both ends of the telescopic hose are securely connected to the upper guide component 9 and the feed gun body 10 via clamps, flanges, or quick couplings to ensure a leak-proof connection.

[0106] The spray gun body 10 is rotatably connected to the upper guide component 9 via a rotating base 11. The rotating base 11 is a support structure, and its bottom is connected to the outside of the upper guide component 9 through a bearing, allowing it to rotate around a horizontal or vertical axis. The spray gun body 10 is fixedly mounted on the rotating base 11. When the rotating base 11 rotates, the spray gun body 10 rotates accordingly, thereby adjusting the spraying direction.

[0107] The rotating base 11 can rotate up and down, with the preferred rotation angle ranging from -30 degrees to +60 degrees. A negative angle indicates downward tilt, and a positive angle indicates upward tilt. It can also rotate horizontally left and right, achieving a 360-degree omnidirectional rotation angle. Through the flexible rotation of the rotating base 11, the spreading gun body 10 can be adjusted to any desired spraying direction.

[0108] (4) Two-stage gas pressurization system A rear pusher 19 is fixedly installed inside the upper guide component 9 on the side away from the feed gun body 10. The rear pusher 19 is a gas booster pump, whose air inlet is connected to the air in the cavity of the upper guide component 9, and whose air outlet is connected to the feed channel inside the upper guide component 9 through a pipe.

[0109] A front-push component 18 is fixedly installed inside the material spreading gun body 10. The front-push component 18 is also a gas booster pump, with its air inlet connected to the air inside the material spreading gun body 10 and its air outlet connected to the material discharge channel of the material spreading gun body 10.

[0110] The gas booster pump can be a piston, diaphragm, or screw pump, capable of boosting atmospheric air to a certain pressure. In this embodiment, the boosting pressure of the rear pusher 19 is preferably 0.2 MPa to 0.5 MPa, and the boosting pressure of the front pusher 18 is preferably 0.3 MPa to 0.8 MPa. The pressure of the front pusher 18 is higher than that of the rear pusher 19, achieving two-stage incremental boosting.

[0111] Both the rear pusher component 19 and the front pusher component 18 are driven by electricity and can be controlled by an electric air pump or an external air source via a solenoid valve. They can start simultaneously or with a time delay to achieve the best pressurization effect.

[0112] The working principle of the dual-stage gas pressurization is as follows: After the feed is conveyed to the upper guide 9 through the screw feeder 17, it is accelerated and pushed for the first time by the airflow generated by the rear pusher 19. This airflow and feed mixture enter the feed gun body 10 through the retractable hose. Inside the feed gun body 10, the higher pressure airflow generated by the front pusher 18 accelerates and pushes the feed for the second time.

[0113] The advantages of two-stage pressurization are: the first stage of pressurization gives the feed initial velocity, overcoming pipeline resistance and gravity, and allowing it to smoothly enter the feed spraying gun 10; the second stage of pressurization gives the feed a sufficiently high spray velocity, enabling it to be sprayed over a longer distance. Compared with single-stage high-pressure pressurization, this multi-stage pressurization method has lower pressure requirements on the equipment, higher safety, and a more stable and continuous pressurization effect.

[0114] (5) Cutting blade and positioning ring A positioning ring 25 is fixedly installed at the front end of the spreading gun body 10. The positioning ring 25 is an annular structure with an inner diameter slightly larger than the inner diameter of the spreading gun body 10. It is fixed to the front end of the spreading gun body 10 by means of a flange or threaded connection. The function of the positioning ring 25 is to fix the cutting blade 26 and the shrink-off cloth 24.

[0115] Multiple sets of cutting blades 26 are fixedly installed inside the positioning ring 25. The cutting blades 26 are blades or wires, and the number is preferably 3 to 8 sets. The arrangement of the cutting blades 26 inside the positioning ring 25 can be radial, that is, each cutting blade 26 extends from the inner edge of the positioning ring 25 towards the center, and the center positions intersect or leave a certain gap; or it can be a cross-grid, that is, the cutting blades 26 form a grid structure within the cross section of the positioning ring 25.

[0116] The cutting blade 26 faces the direction of feed flow. When the feed passes through the positioning ring 25 at high speed under the propulsion of the airflow, the feed clumps come into contact with the cutting blade 26 and are cut and separated into smaller particles or fragments. The cutting blade 26 is preferably made of stainless steel, high carbon steel, or ceramic, which has good sharpness and wear resistance.

[0117] The gap between the cutting blades 26 determines the maximum size of the feed pellets after cutting. The gap size can be designed according to actual needs, preferably 10mm to 30mm. A smaller gap allows for finer cutting of the feed, but with greater resistance; a larger gap results in less resistance, but limited cutting effect. In this embodiment, by rationally designing the number and arrangement of the cutting blades 26, the resistance is controlled within a reasonable range while ensuring the cutting effect.

[0118] The cutting action of the cutting blade 26 has two benefits: first, it prevents large clumps of feed from clogging the outlet of the feed gun 10; second, it cuts the feed into appropriately sized particles, ensuring that the sprayed feed is of uniform size, which is beneficial for aquatic animals to feed and for the distribution of feed on the water surface.

[0119] (6) Adaptive protection of retractable baffle At the end of the positioning ring 25 furthest from the forward-pushing component 18, i.e., the outlet end of the positioning ring 25, a shrinkage baffle 24 is arranged around it. The shrinkage baffle 24 is an annular curtain or membrane structure, with one end fixed to the edge of the outlet end of the positioning ring 25 and the other end being a free end.

[0120] The shrink-fit tarpaulin 24 is made of a flexible waterproof material, such as a rubber membrane, silicone membrane, waterproof canvas, or flexible plastic membrane. The shrink-fit tarpaulin 24 has a natural tendency to shrink towards the center. This shrinkage tendency can be achieved through the elasticity of the material itself, or by adding elastic ropes or spring coils to the free edges of the shrink-fit tarpaulin 24.

[0121] When the current pusher 18 is working, generating a high-pressure airflow that propels the feed out, the pressure of the airflow acts on the inner surface of the shrinkage baffle 24, overcoming the shrinkage force of the shrinkage baffle 24 and causing the shrinkage baffle 24 to automatically expand outward, that is, diffuse towards the interior of the feed gun body 10. At this time, the free end of the shrinkage baffle 24 opens, the outlet of the positioning ring 25 is fully opened, and the feed can be smoothly sprayed out through the shrinkage baffle 24.

[0122] When the material feeding stops, the forward-pushing component 18 ceases operation. After the airflow pressure disappears, the shrinking baffle 24 automatically converges towards the center under its own shrinkage force. The free ends of the shrinking baffle 24 converge towards the center, approaching each other and even overlapping, blocking and sealing the outlet of the material feeding gun 10.

[0123] The adaptive opening and closing characteristic of the shrinkable baffle 24 enables automatic protection: it automatically opens during feeding to avoid obstructing feed spraying; and it automatically closes when feeding stops to prevent external moisture, dust, or other impurities from entering the feed pipe 16 and feed tank 1 through the feed gun body 10. This protection mechanism requires no manual operation or additional control system, relying entirely on airflow pressure and the inherent characteristics of the shrinkable baffle 24, resulting in a simple and reliable structure.

[0124] The shrinkage force of the retractable baffle 24 must be appropriately designed: if the shrinkage force is too small, the outlet may not be able to be completely closed, resulting in poor protection; if the shrinkage force is too large, a higher airflow pressure is required to open it, increasing energy consumption. Through material selection and structural design, the retractable baffle 24 can be opened smoothly under an airflow pressure of 0.1MPa to 0.3MPa, and can automatically close within 3 to 10 seconds after the airflow stops.

[0125] (7) Working process of the feeding and spreading component When feeding is required, the rotating motor 12 is started first, which drives the screw feeder 17 to rotate. The screw blades of the screw feeder 17 push the feed sucked in at the lower end of the feeding pipe 16 upward. The feed is sucked in at the lower end of the feeding pipe 16 through the stacking hole 23, and spirals upward under the push of the screw blades, overcoming gravity and the frictional resistance of the pipe wall, and is continuously conveyed upward.

[0126] After the feed reaches the upper end of the feeding pipe 16, it enters the cavity of the upper guide component 9. Almost simultaneously, the rear pusher component 19 is activated, and the pressurized airflow generated by the rear pusher component 19 enters the cavity of the upper guide component 9, pushing the feed into the cavity. Under the push of the airflow, the feed passes through the outlet of the upper guide component 9 and enters the retractable hose.

[0127] Feed enters the feed dispenser body 10 through a retractable hose. Inside the feed dispenser body 10, the forward pushing component 18 is activated (it can be activated simultaneously with the rear pushing component 19, or slightly later by 1 to 2 seconds), generating a higher-pressure boosted airflow. The airflow from the forward pushing component 18 provides a second boosted push to the feed, giving it a greater speed under the dual airflow propulsion.

[0128] When the high-speed feed reaches the front end of the feed gun body 10 and passes through the positioning ring 25, it comes into contact with the cutting blade 26 inside the positioning ring 25, and the feed clump is cut into particles of appropriate size by the cutting blade 26.

[0129] Simultaneously, the airflow pressure causes the retractable baffle 24 to automatically expand inward, allowing the feed to pass smoothly through the retractable baffle 24 and be sprayed out from the front end of the feed gun body 10. Under the powerful thrust of the dual-stage gas pressurization, the feed can be sprayed to a relatively long distance, ranging from 10 to 30 meters, depending on the pressurization pressure, the elevation angle of the feed gun body 10, and the physical properties of the feed.

[0130] The sprayed feed travels in a parabolic trajectory through the air before landing on the surface of the aquaculture pond. Because the feed is cut by the cutting blade 26, the particle size is relatively uniform, and the distribution on the water surface is also relatively even.

[0131] When it is necessary to stop feeding, the rear pusher 19 and the front pusher 18 are stopped first, and the airflow pressure disappears. The shrinking baffle 24 automatically converges towards the center under its own shrinkage force, sealing the outlet of the feeding gun 10. Then the rotating motor 12 stops rotating, the screw feeder 17 stops rotating, and the feed delivery stops. The entire system enters standby mode.

[0132] In standby mode, the retractable baffle 24 remains closed, effectively preventing external moisture from entering. Simultaneously, the dehumidifier 6 operates continuously or intermittently to keep the system interior dry. This ensures that even during prolonged standby in high-humidity environments, the system remains dry, preventing feed from becoming damp and clumping.

[0133] VI. Vibration Distribution System like Figure 1 and Figure 3 As shown, a second motor is provided on the outer side of the upper guide 9. The second motor is a bidirectional motor, that is, a motor that can rotate in both forward and reverse directions. It can be an AC motor or a stepper motor with forward and reverse control.

[0134] The output end of the second motor is fixedly connected to the rotating base 11. Specifically, the output shaft of the second motor is connected to the rotating shaft of the rotating base 11 through a coupling or transmission mechanism. When the second motor rotates forward, the rotating base 11 rotates in one direction, causing the spreading gun body 10 to swing upward or to one side; when the second motor rotates in reverse, the rotating base 11 rotates in the opposite direction, causing the spreading gun body 10 to swing downward or to the other side.

[0135] The second motor rotates continuously in both directions according to a set program, for example, rotating forward for 2 seconds, pausing for 0.5 seconds, rotating backward for 2 seconds, pausing for 0.5 seconds, and so on. Driven by this forward and reverse rotation, the rotating base 11 drives the spreading gun body 10 to vibrate up and down or swing left and right continuously.

[0136] The amplitude of the vibration is determined by the rotation angle of the second motor, preferably ±10 degrees to ±30 degrees. The frequency of the vibration is determined by the forward and reverse switching frequency of the second motor, preferably 0.2 Hz to 1 Hz, that is, 0.2 to 1 vibration per second.

[0137] The vibration of the feed spray gun body 10 causes the spray direction to change continuously. When swinging upwards, the feed spray angle increases, the spray distance increases, and the coverage area extends to the far end; when swinging downwards, the feed spray angle decreases, the spray distance decreases, and the coverage area extends to the near end. Through continuous up-and-down vibration, the feed can evenly cover the entire fan-shaped area from near to far.

[0138] If the rotating seat 11 is designed to rotate horizontally and the feed gun body 10 swings left and right, the feed spraying can cover a larger horizontal angle range, achieving uniform spreading over a large area.

[0139] Compared with fixed-direction spraying, vibration-distribution mechanism has significant advantages: feed sprayed in a fixed direction will concentrate in a certain area, resulting in an overabundance of feed in that area and an underabundance of feed in other areas; vibration-distribution mechanism disperses the feed to multiple different locations, resulting in a more uniform overall distribution, avoiding the problem of local overabundance or underabundance, and improving feed utilization and breeding effect.

[0140] VII. Feeding System like Figure 1 and Figure 2 As shown, a glass frame 2 is provided on the side wall of the feed tank 1 corresponding to the position of each inner storage tank 7. The glass frame 2 is a rectangular or approximately rectangular frame structure, and its size is sufficient to observe the state of the feed inside the inner storage tank 7. Preferably, the height is 300mm to 800mm and the width is 200mm to 500mm.

[0141] The glass frame 2 contains transparent glass, which can be made of tempered glass, acrylic glass, or other transparent materials. The thickness of the transparent glass is preferably 5mm to 12mm to ensure sufficient strength and safety.

[0142] The glass frame 2 is rotatably connected to the feed tank 1. Specifically, one edge of the glass frame 2 is connected to the feed tank 1 via a hinge, allowing it to be flipped open outwards. A sealing gasket is provided at the connection between the glass frame 2 and the feed tank 1. The sealing gasket is made of rubber strips, silicone strips, or other elastic sealing materials. When the glass frame 2 is closed, the sealing gasket is compressed, forming a seal between the glass frame 2 and the feed tank 1 to prevent moisture from entering through the connection gap.

[0143] The glass frame 2 is secured in the closed position by latches or buckles, ensuring it will not be accidentally opened during transport and use. To open the glass frame 2, simply release the latches and flip the glass frame 2 outwards.

[0144] A rotating baffle 8 is rotatably mounted on the side of the inner storage tank 7 near the glass frame 2. The rotating baffle 8 is a plate-shaped structure, the size of which matches the opening on the inner side of the glass frame 2. The lower end of the rotating baffle 8 is rotatably connected to the side wall of the inner storage tank 7 via a hinge, allowing it to be flipped open outwards.

[0145] The upper end of the rotating baffle 8 is provided with a locking block, which can be a protrusion, a hook, or a magnet. When the rotating baffle 8 is closed, the locking block engages with the corresponding slot or magnetic component on the upper end of the inner storage tank 7, fixing the rotating baffle 8 in the closed position.

[0146] During the feeding operation, first open the glass frame 2, then open the rotating baffle 8, fully exposing the interior of the inner storage tank 7. Operators can directly pour or shovel feed into the inner storage tank 7. Due to the large openings of the glass frame 2 and the rotating baffle 8, the feeding operation is very convenient and quick.

[0147] After loading is complete, first close the rotating baffle 8, and the snap-fit ​​block is snapped into place with the inner storage tank 7; then close the glass frame 2, the sealing gasket is compressed to form a seal, and the latch is tightened. The entire loading process is simple and efficient.

[0148] During daily operation, operators can observe the remaining feed level, feed condition (whether it is clumped or damp), and feed type in each inner storage tank 7 at any time through the transparent glass of the glass frame 2, without having to open the tanks. This visualization design greatly facilitates daily management and maintenance.

[0149] VIII. Intelligent Monitoring and Control System Each inner storage tank 7 is equipped with a pressure sensor at its bottom. The pressure sensor can be a strain gauge pressure sensor, a piezoresistive pressure sensor, or a capacitive pressure sensor. The pressure sensor is installed on the support structure at the bottom of the inner storage tank 7 or on the lower surface of the upper fixed plate 27, and can sense the pressure generated by the weight of the feed inside the inner storage tank 7.

[0150] A remote control terminal is installed inside the feed tank 1. The remote control terminal includes a microprocessor, memory, communication module, and display module. The microprocessor can be a microcontroller, PLC, or embedded computer.

[0151] The pressure sensor is connected to the remote control terminal via a signal line, enabling it to transmit real-time pressure information to the terminal. Upon receiving the pressure information, the remote control terminal calculates the feed content (weight or volume) in each inner storage tank 7 using a pre-calibrated pressure-weight conversion relationship.

[0152] The remote control terminal's display module can show real-time feed content, historical consumption curves, and remaining available time for each internal storage tank 7. Operators can easily monitor the feed status through the display module.

[0153] The remote control terminal can also control the start and stop of the first motor, rotating motor 12, rear pusher 19, front pusher 18, second motor, and dehumidification equipment 6 of each inner storage tank 7. Operators can set the feeding program through the remote control terminal, such as: setting the discharge ratio of each inner storage tank 7, for example, inner storage tank 7-1 discharges 30%, inner storage tank 7-2 discharges 50%, and inner storage tank 7-3 discharges 20%; setting the feeding time and cycle, for example, feeding once each at 8:00 AM, 12:00 PM, and 6:00 PM every day, each lasting 10 minutes; setting the rotation speed of the screw feeder 17 to control the feed conveying speed; setting the pressure of the gas booster pump to control the spraying distance; and setting the vibration frequency and amplitude of the feeding gun body 10 to control the feed distribution range.

[0154] The remote control terminal can connect to external devices via a communication module, enabling remote monitoring and control. The communication module can utilize WiFi, 4G / 5G, Bluetooth, or wired networks. Operators can monitor equipment operation status, check feed levels, and modify feeding programs from a distance using a mobile app or computer software, achieving truly intelligent, unattended operation.

[0155] When the feed content in one of the internal storage tanks 7 falls below a set threshold, the remote control terminal can issue an alarm to remind the operator to replenish the feed in time. When an equipment malfunction is detected, such as motor overload, material blockage, or sensor failure, the remote control terminal will also issue an alarm and automatically shut down the machine for protection.

[0156] Example 2: The complete working process of the feed spreading device for aquaculture of the present invention is as follows: Feed storage: Different types of feed are stored separately in multiple sets of internal storage tanks 7. The feed status can be observed through the glass frame 2, and the feed content is monitored in real time by pressure sensors.

[0157] Discharge and Crushing: According to the set ratio, the first motor of the corresponding inner storage tank 7 is started, driving the inner agitator 20, the lower rotating disk 28 and the conical baffle 29 to rotate synchronously. The feed falls from the overlapping discharge hole, is initially agitated by the inner agitator 20, is crushed by the rotation of the feed rod 30, is filtered through the gap between the connecting plates 33, and flows out from the discharge hole 32 under the vibration of the conical baffle 29.

[0158] Mixing and converging: Crushed feed from different inner storage tanks 7 falls onto the inner guide seat 13. The inner guide seat 13 rotates, and the inner stirring shaft 14 fully mixes the feed. The mixed feed converges along the inclined surface to the stacking hole 23.

[0159] Dehumidification protection: The dehumidification equipment 6 works continuously, extracting moisture from the inside of the feed tank 1, especially the inside of the feeding system, through the ventilation hole 22. The moisture is introduced into the dehumidification chamber 15 through the air chamber, where the desiccant absorbs the moisture and then discharges through the filter element 5, keeping the system dry.

[0160] Screw conveyor: The rotating motor 12 drives the screw feeder 17 to rotate, conveying the feed at the stacking hole 23 upward along the feeding pipe 16 to the upper guide 9.

[0161] Dual-stage pressurization: The rear pusher 19 generates a first-stage pressurized airflow, which pushes the feed into the feed gun body 10; the front pusher 18 generates a second-stage pressurized airflow, which enables the feed to obtain a sufficiently high spray speed.

[0162] Cutting and spraying: When the feed passes through the positioning ring 25, it is cut into appropriate particles by the cutting blade 26. The airflow pressure causes the shrinkage baffle 24 to open automatically, and the feed is sprayed out from the feed gun body 10.

[0163] Vibration distribution: The second motor drives the rotating seat 11 to rotate in both directions, and the feeding gun body 10 vibrates continuously, so that the sprayed feed is evenly distributed on the surface of the breeding pond.

[0164] Shutdown protection: When the material is stopped, the airflow disappears, and the retractable baffle 24 automatically gathers and closes the outlet of the material gun 10 to prevent moisture from entering.

[0165] Intelligent control: The remote control terminal automatically controls the coordinated operation of various components based on feedback from the pressure sensor and preset programs to achieve intelligent automatic material spreading.

[0166] The entire system's components work together to form a complete closed loop, encompassing storage, moisture prevention, crushing, mixing, dehumidification, conveying, pressurization, cutting, spraying, and protection, achieving efficient, reliable, and intelligent automated feeding operations for aquaculture.

[0167] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A feed spreading device for aquaculture, characterized in that, include: The feed tank has several sets of internal storage tanks arranged equidistantly around its upper interior. A mixing assembly is located at the bottom of the feed tank. A feeding and spreading component is located in the middle of the feed tank, and the feeding and spreading component can transport the feed mixed by the mixing component to the top of the feed tank; A dehumidifying device is installed at the bottom of the mixing assembly, and the dehumidifying device is capable of dehumidifying the inside of the spreading and feeding component; A discharge mechanism is disposed at the bottom of each of the inner storage tanks, and the discharge mechanism includes: The blanking plate includes an upper fixed plate and a lower rotating plate, the upper fixed plate and the lower rotating plate are fitted together and overlap each other, and both the upper fixed plate and the lower rotating plate are provided with blanking holes; The dispersing component consists of an upper stirring mechanism and a lower stirring mechanism, which are fixedly connected to the upper and lower sides of the lower rotating disk, respectively. The upper stirring mechanism, the lower rotating disk, and the lower stirring mechanism can rotate synchronously to crush and disperse the feed falling from the inner storage tank.

2. The feed spreading device for aquaculture according to claim 1, characterized in that, The upper fixed plate is fixedly installed at the bottom of the inner storage tank, and the lower rotating plate is rotatably connected to the lower surface of the upper fixed plate. The upper stirring mechanism includes an inner stirring component. The lower end of the inner stirring component is fixedly installed on the upper surface of the lower rotating plate, and the upper end is rotatably connected to the top of the inner storage tank. A first motor is provided on the top of the inner storage tank, and the output end of the first motor is fixedly connected to the inner stirring component.

3. The feed spreading device for aquaculture according to claim 1, characterized in that, The lower stirring mechanism includes a conical baffle, which is located below the lower rotating disk and rotatably connected to the inner storage tank. The tip of the conical baffle points downward and has a discharge hole at the tip. Multiple sets of connecting plates are evenly connected around the discharge hole on the upper surface of the conical baffle. The connecting plates are telescopic and their upper ends are fixedly connected to the lower rotating disk. Multiple sets of material dispersing rods are fixedly installed on the upper edge of the upper surface of the conical baffle. Abutment rods are symmetrically installed on the lower surface of the conical baffle. A convex plate is fixedly installed on the lower surface of the inner storage tank. The lower end of the abutment rod abuts against the upper surface of the convex plate. When the conical baffle rotates, it vibrates due to the contact between the abutment rod and the convex plate.

4. The feed spreading device for aquaculture according to claim 1, characterized in that, The mixing assembly includes an inner guide seat, which is rotatably mounted on the lower end of the feed tank. The upper surface of the inner guide seat is a conical surface inclined towards the center. Multiple sets of inner stirring shafts are fixedly mounted on the upper surface of the inner guide seat. A material stacking hole is opened in the middle of the inner guide seat. Multiple sets of ventilation holes are opened at the bottom of the material stacking hole. A support base is fixedly mounted on the lower end of the feed tank. The lower end of the inner guide seat is inserted into the support base and rotatably connected to it.

5. The feed spreading device for aquaculture according to claim 4, characterized in that, A lower empty chamber is provided below the ventilation hole in the inner guide seat. The lower empty chamber is connected to the support base. The dehumidification device is fixedly installed in the support base. Multiple sets of side connecting columns are equidistantly arranged around the edge of the support base. The interior of each side connecting column is hollow to form a dehumidification chamber, and a filter element is fixedly installed at the upper end of the dehumidification chamber. The side connecting columns are filled with desiccant. Multiple air chambers are opened in the support base. The air chambers connect the bottom of the dehumidification device and the dehumidification chamber.

6. The feed spreading device for aquaculture according to claim 1, characterized in that, The feeding device includes a feeding pipe, an upper guide, and a feeding gun body. The feeding pipe is rotatably installed in the middle of the feed tank, with its lower end located above the stacking hole. The upper guide is rotatably connected to the upper surface of the feed tank, and the upper end of the feeding pipe is fixedly connected to the upper guide. A rotating motor is fixedly installed on the upper surface of the upper guide, and a spiral feeding component is fixedly installed at the output end of the rotating motor. The spiral feeding component is located inside the feeding pipe and fits against the inner wall of the feeding pipe. The feeding gun body is rotatably connected to the upper guide through a rotating seat, and the lower end of the feeding gun body is connected to the upper end of the feeding pipe through a retractable hose.

7. The feed spreading device for aquaculture according to claim 6, characterized in that, A rear pusher is fixedly installed inside the upper guide component on the side away from the spreading gun body. A front pusher is fixedly installed inside the spreading gun body. Both the front pusher and the rear pusher are gas booster pumps. A positioning ring is fixedly installed at the front end of the spreading gun body. Multiple sets of cutting blades are fixedly installed inside the positioning ring. A shrinkable baffle is arranged around the end of the positioning ring away from the front pusher.

8. The feed spreading device for aquaculture according to claim 1, characterized in that, The feed tank sidewall is provided with a glass frame corresponding to the position of the inner storage tank. The glass frame is filled with transparent glass. The glass frame is rotatably connected to the feed tank and a sealing gasket is provided at the connection. The inner storage tank is rotatably installed with a rotating baffle on the side near the glass frame. The lower end of the rotating baffle is rotatably connected to the inner storage tank, and the upper end is provided with a snap-fit ​​block, which snaps into the inner storage tank.

9. The feed spreading device for aquaculture according to claim 6, characterized in that, A second motor is provided on the outside of the upper guide component. The output end of the second motor is fixedly connected to the rotating base. The second motor is a bidirectional motor.

10. A method for spreading feed for aquaculture using the apparatus of claim 1, characterized in that, Including the following: S1: Different types of feed are classified and stored in multiple sets of the inner storage tanks (7). The feed content is monitored by a pressure sensor installed at the bottom of each inner storage tank (7) and transmitted to the remote control terminal. S2: Start the first motor at the top of the corresponding inner storage tank to drive the inner stirring component (20) to rotate. The inner stirring component (20) drives the lower rotating disk (28) to rotate, so that the discharge hole on the lower rotating disk (28) coincides with the discharge hole on the upper fixed disk (27), and the feed falls from the gap between the adjacent connecting plates. The lower rotating disk (28) drives the conical baffle (29) to rotate synchronously, and the material dispersing rod (30) on it crushes the feed. The contact rod (34) on the lower surface of the conical baffle (29) continuously contacts the convex disk (31), causing the conical baffle (29) to oscillate up and down. The crushed feed can flow out from the bottom of the discharge mechanism and enter the mixing component under the action of vibration. S3: By driving the inner guide seat (13) to rotate, the inner stirring shaft (14) on the upper surface of the inner guide seat (13) is driven to mix the feed. The mixed feed converges towards the center along the inner guide seat (13) and accumulates at the stacking hole (23). S4: The dehumidification equipment (6) dehumidifies the inside of the feed tank (1), the feed pipe (16), and the feed gun body (10) through the ventilation hole (22); the extracted moisture enters the dehumidification chamber (15) through the air chamber, and after being dried by the desiccant, it is discharged through the filter element (5); S5: The spiral feeder (17) conveys the mixed feed upward along the feed pipe (16) to the upper guide (9); the feed enters the spreader body (10) through the retractable hose, the rear pusher (19) serves as the first-stage pushing power, and the front pusher (18) serves as the second-stage pushing power to drive the feed to spray; S6: When the pressurized feed passes through the positioning ring (25), the cutting blade (26) inside the positioning ring (25) cuts the feed; the second motor drives the rotating seat (11) to rotate forward and backward, so that the spreading gun body (10) vibrates up and down continuously to achieve uniform spreading of feed; S7: Based on the actual breeding needs and the feed content information fed back by the pressure sensor, adjust the discharge amount of each inner storage tank to achieve the spreading of mixed feed with different ratios. Repeat steps S2 to S6 to complete multiple spreading operations. After the spreading is completed, the shrink baffle (24) automatically gathers towards the middle to block the outlet of the spreading gun body (10).

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