An efficient drying system for aquatic feed

Abstract

This application relates to the field of aquatic feed processing, and specifically discloses an efficient drying system for aquatic feed, which includes a tank body, a feed pipe, and a discharge pipe. Inside the tank cavity, the following components are sequentially arranged from top to bottom: a centrifugal stirring mechanism, a primary drying mechanism, a secondary drying mechanism, a circulation mechanism, and a feeding mechanism, which are used to convey the aquatic feed dried by the secondary drying mechanism into the discharge pipe. The aquatic feed entering the tank body can be centrifugally dispersed by the centrifugal stirring mechanism, so that the aquatic feed can be dispersed. The primary drying mechanism can perform hot air drying on the centrifugally dispersed aquatic feed, thereby removing the moisture in the aquatic feed. When the aquatic feed is dried by the primary drying mechanism, it will enter the secondary drying mechanism again for secondary drying, so that the moisture in the aquatic feed can be removed more thoroughly, improving the drying effect of the aquatic feed.

Description

Technical Field

[0001] The present application relates to the field of aquatic feed processing, and particularly to an efficient drying system for aquatic feed. Background Art

[0002] In the production and processing of aquatic feed, it is often necessary to dry a variety of vegetable raw materials or animal raw materials for further processing. Most of the current drying equipment used is a feed dryer.

[0003] In the related art, the feed dryer includes a drum, a driving mechanism for driving the drum to rotate, and a heating mechanism disposed below the drum for heating the drum. Feed inlets and outlets for aquatic feed to enter and exit the drum are provided at the left and right ends of the drum. When the aquatic feed enters the interior of the drum from the feed inlet, the aquatic feed rotates along the inner peripheral wall of the drum under the action of the drum. At this time, the heating mechanism can heat the outer peripheral wall of the drum, so that the aquatic feed in the drum is heated and becomes dry. The dried aquatic feed falls out of the drum from the outlet, thereby completing the drying of the aquatic feed.

[0004] In view of the above related art, although the heating mechanism can heat the outer peripheral wall of the rotating drum, the aquatic feed entering the interior of the drum will accumulate on the inner wall of the drum near the bottom under the action of gravity. The aquatic feed accumulated on the inner wall of the drum is arranged in a stacked manner. Even if the drum is always in a rotating state, it is difficult for the drum to drive the aquatic feed to be fully turned over, so that the heating time of the lower-layer aquatic feed most closely attached to the inner bottom wall of the drum is longer than that of the upper-layer aquatic feed. Therefore, it is difficult for the heating mechanism to uniformly heat all the aquatic feed, resulting in insufficient heating of the aquatic feed far from the heating mechanism, and thus the aquatic feed falling out of the drum is difficult to be completely dried. Therefore, it is necessary to improve this situation. Summary of the Invention

[0005] In order to more fully heat the aquatic feed, the present application provides an efficient drying system for aquatic feed.

[0006] An efficient drying system for aquatic feed provided by the present application adopts the following technical solutions:

[0007] An efficient drying system for aquatic feed includes a tank body, a feed pipe disposed at the upper end of the tank body and communicating with the inner cavity of the tank body, and a discharge pipe disposed at the lower end of the tank body and communicating with the inner cavity of the tank body. The following are sequentially arranged from top to bottom in the inner cavity of the tank body:

[0008] A centrifugal stirring mechanism for centrifugally dispersing the aquatic feed entering the tank body.

[0009] The primary drying mechanism is used to conduct primary hot air drying on the aquatic feed in the centrifugal stirring mechanism;

[0010] The secondary drying mechanism is used to conduct secondary baking on the aquatic feed after hot air drying by the primary drying mechanism;

[0011] The circulation mechanism is used to circulate and reflux the hot air in the primary drying mechanism;

[0012] The feeding mechanism is used to convey the aquatic feed dried by the secondary drying mechanism into the discharge pipe.

[0013] By adopting the above technical solution, when the aquatic feed enters the tank through the feed pipe, the centrifugal stirring mechanism can centrifugally disperse the aquatic feed entering the tank, thereby dispersing the aquatic feed and increasing the contact area between the aquatic feed and the air. The primary drying mechanism can conduct hot air drying on the centrifugally dispersed aquatic feed, thereby quickly removing most of the moisture in the aquatic feed;

[0014] When the aquatic feed is dried by the primary drying mechanism, it will enter the secondary drying mechanism again for secondary baking, so that the moisture in the aquatic feed can be removed more thoroughly, thereby improving the drying effect on the aquatic feed.

[0015] Compared with the drying methods in the related art, the drying method in this application greatly increases the contact area between the aquatic feed and the air, enabling the aquatic feed to be more fully dried by the primary drying mechanism and the secondary drying mechanism, and greatly improving the drying effect on the aquatic feed.

[0016] Optionally, the centrifugal stirring mechanism includes a mounting column, a centrifugal cylinder, and a driving mechanism. The mounting column is hollow and fixed on the inner wall of the tank and communicates with the feed pipe. The centrifugal cylinder rotates around the axis of the mounting column and is rotatably installed on the outer peripheral wall of the mounting column. The barrel wall of the centrifugal cylinder is provided in a wide-mouth shape, and the driving mechanism is used to drive the centrifugal cylinder to rotate;

[0017] A material guiding channel is arranged in the inner cavity of the mounting column. The material guiding channel is located above the centrifugal cylinder and is hollow, and the material guiding channel penetrates through the outer peripheral wall of the mounting column.

[0018] By adopting the above technical solution, when the aquatic feed enters the tank through the feed pipe, it will enter the inner cavity of the installation column, and then be sent to the inner bottom wall of the centrifugal cylinder after passing through the material guiding channel. Driven by the driving mechanism, the centrifugal cylinder will rotate, and the rotating centrifugal cylinder will throw the aquatic feed on the inner bottom wall towards the inner wall of the centrifugal cylinder. Since the inner wall of the centrifugal cylinder is in a wide-mouth shape, the aquatic feed on the centrifugal cylinder will gradually move upward until it is thrown out of the centrifugal cylinder. During the process of the aquatic feed being dispersed, the primary drying mechanism always blows hot air on the aquatic feed on the inner wall of the centrifugal cylinder, enabling the aquatic feed to quickly become dry.

[0019] Optionally, the driving mechanism includes a first driving member installed on the installation column, a first gear coaxially sleeved and fixed on the output end of the first driving member, and an internal gear ring fixed on the outer bottom wall of the centrifugal cylinder. The length direction of the first driving member is parallel to the axis direction of the installation column. The rotation axis of the internal gear ring coincides with the rotation axis of the centrifugal cylinder, and the tooth surfaces of the first gear and the internal gear ring are meshed with each other.

[0020] By adopting the above technical solution, controlling the first driving member to work, the first driving member drives the first gear to rotate, and the first gear rotates to drive the internal gear ring at the bottom of the centrifugal cylinder to rotate, thereby driving the centrifugal cylinder to rotate, so as to realize the dispersion of the aquatic feed on the inner bottom wall of the centrifugal cylinder.

[0021] Optionally, the primary drying mechanism includes a drying cylinder and a hot air assembly. The drying cylinder is fixed on the installation column and is hollow. The drying cylinder is located inside the centrifugal cylinder. A plurality of ventilation holes are formed on the outer peripheral wall of the drying cylinder, and the hot air assembly is communicated with the inner cavity of the drying cylinder.

[0022] By adopting the above technical solution, when the aquatic feed is dispersed by the rotating centrifugal cylinder, the hot air assembly supplies hot air to the drying cylinder, and the hot air in the inner cavity of the drying cylinder sprays out through the ventilation holes, thereby drying the aquatic feed on the inner wall of the centrifugal cylinder with hot air.

[0023] Optionally, the hot air assembly includes a blower, a ventilation pipe and a heating element arranged outside the tank. One end of the ventilation pipe is communicated with the inner cavity of the drying cylinder, and the other end is communicated with the air outlet end of the blower. The heating element is arranged on the ventilation pipe.

[0024] By adopting the above technical solution, the blower can blow air, and the air blown out by the blower can be heated by the heating element. The heated hot air enters the drying cylinder through the ventilation pipe, thereby drying the aquatic feed with hot air.

[0025] Optionally, a plurality of spoiler bars are arranged on the inner peripheral wall of the centrifugal cylinder, and each spoiler bar extends from the bottom of the centrifugal cylinder towards the port of the centrifugal cylinder.

[0026] By adopting the above technical solution, when the aquatic feed rolls from the side wall near the bottom of the centrifugal cylinder to the side wall away from the bottom, the spoiler bars can further disperse the aquatic feed, so that the aquatic feed can be further broken up, increasing the contact area between the aquatic feed and the hot air, and thus making the drying effect of the aquatic feed better.

[0027] Optionally, the secondary drying mechanism includes a guide plate arranged in a ring shape. One side of the guide plate is fixedly sealed with the inner peripheral wall of the centrifugal cylinder, and the other end is located above the port of the drying cylinder. A plurality of material dropping openings are formed in the mounting column outside the material guiding channel, and each of the material dropping openings is arranged on the inner bottom wall of the drying cylinder. The aquatic feed in the drying cylinder can pass through the material dropping openings and enter the mounting column and fall out from the lower end of the mounting column.

[0028] By adopting the above technical solution, when the aquatic feed rolls from the peripheral wall of the centrifugal cylinder to the guide plate, the guide plate can guide the aquatic feed, so that the aquatic feed can fall into the inner cavity of the drying cylinder more dispersedly. Since the cavity in the inner wall of the drying cylinder is filled with high-temperature hot air, the inner cavity of the drying cylinder is also in a high-temperature state. The aquatic feed scattered into the inner cavity of the drying cylinder can be further dried by the high-temperature air, so that the moisture of the aquatic feed can be fully removed, and the drying effect on the aquatic feed is further improved.

[0029] Optionally, the circulation mechanism includes a reflux ring and a reflux pipe. The peripheral wall of the centrifugal cylinder is also hollow, and a plurality of reflux holes are formed on one side of the centrifugal cylinder close to the ventilation holes, and each of the reflux holes is communicated with the inner cavity of the peripheral wall of the centrifugal cylinder;

[0030] An annular groove is formed on the outer peripheral wall of the centrifugal cylinder along its circumferential direction, and a plurality of air guide openings communicated with the inner cavity of the centrifugal cylinder are spaced apart at the bottom of the groove. The reflux ring is hollow and fixed on the inner wall of the tank body. The reflux ring is slidably and adaptively clamped in the groove, and a plurality of reflux openings are formed on the inner peripheral wall of the reflux ring corresponding to the air guide openings at the bottom of the groove. The two ends of the reflux pipe are respectively communicated with the inner cavity of the reflux ring and the air inlet end of the blower.

[0031] By adopting the above technical solution, after the hot air dries the aquatic feed, under the suction effect at the air inlet end of the blower, the hot air will pass through the air guiding port and the return port respectively and then enter the inner cavity of the return ring, and then return to the air inlet end of the blower through the return pipe, thereby realizing the recycling of the hot air inside the tank body. Since the air coming out of the tank body is hot air, when the hot air returns to the heating element, the hot air can be heated up faster, and the heating element can remove the water vapor mixed in the hot air. In addition, the circulating and returning hot air reduces the heat pollution caused by direct discharge into the external air, making it more environmentally friendly.

[0032] Optionally, a material scattering mechanism for scattering the aquatic feed after secondary drying is further provided at a position near the bottom end of the mounting column;

[0033] The material scattering mechanism includes a rotating shaft, a second gear, a third gear, an outer gear ring and a material scattering plate. The rotating shaft is rotatably installed in the tank body and is parallel to the rotation axis of the centrifugal cylinder. The second gear and the third gear are respectively coaxially sleeved and fixed at both ends of the rotating shaft, and the second gear meshes with the inner gear ring. The outer gear ring is rotatably sleeved on the rod body near the bottom of the mounting column, the third gear meshes with the outer gear ring, and the material scattering plate is installed on the outer gear ring and is located below the bottom of the mounting column.

[0034] By adopting the above technical solution, when the aquatic feed after two - stage drying falls out from the lower end of the mounting column, since the rotation of the inner gear ring will drive the rotation of the second gear, the second gear drives the third gear to rotate through the rotating shaft, and the rotation of the third gear drives the rotation of the outer gear ring, so that the material scattering plate rotates together with the outer gear ring. At this time, the aquatic feed falling from the mounting column will fall onto the material scattering plate. Since the material scattering plate is in a rotating state, the aquatic feed will be thrown away again. During this process, the aquatic feed is scattered again, enabling the aquatic feed to be dried more fully. At this time, the aquatic feed has distinct particles, and the scattered aquatic feed falls from the edge of the material scattering plate to the bottom of the tank body and is sent out of the tank body through the feeding mechanism at the bottom of the tank body into the discharge pipe, thereby completing the drying process of the aquatic feed.

[0035] Optionally, the feeding mechanism includes a second driving member installed on the tank body and a spiral conveying blade penetrating through the tank body and extending into the tank body. The spiral conveying blade is coaxially fixed with the output end of the second driving member, and the end of the spiral conveying blade away from the second driving member extends into the discharge pipe.

[0036] By adopting the above technical solution, during the process of aquatic feed falling to the bottom of the tank body, the second driving member drives the spiral conveying blade to conduct spiral conveying on the aquatic feed, so that the aquatic feed at the bottom of the tank body can be sent into the discharge pipe; and during the process of conveying the aquatic feed, due to the relatively high temperature inside the entire tank body, the spiral conveying blade can still stir and dry the aquatic feed, further improving the drying effect of the aquatic feed.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. When the aquatic feed enters the tank body from the feed pipe, the centrifugal stirring mechanism can conduct centrifugal dispersion on the aquatic feed entering the tank body, thereby dispersing the aquatic feed, increasing the contact area between the aquatic feed and the air, and the primary drying mechanism can conduct hot air drying on the aquatic feed during centrifugal dispersion, thereby quickly removing most of the moisture in the aquatic feed; when the aquatic feed is dried by the primary drying mechanism, it will enter the secondary drying mechanism again for secondary drying, so that the moisture in the aquatic feed can be removed more thoroughly, thereby improving the drying effect of the aquatic feed;

[0039] 2. After the hot air dries the aquatic feed, under the suction of the air inlet end of the blower, the hot air will pass through the air guide port and the return port respectively and then enter the inner cavity of the return ring, and then return to the air inlet end of the blower through the return pipe, thereby realizing the recycling of the hot air inside the tank body. Since the air coming out of the tank body is hot air, when the hot air returns to the heating element, the hot air can be heated faster, and the heating element can remove the water vapor mixed in the hot air. In addition, the circulating and returning hot air reduces the heat pollution caused by direct discharge into the external air, making it more environmentally friendly;

[0040] 3. The rotating material scattering plate can throw the aquatic feed again, thereby dispersing the aquatic feed again, enabling the aquatic feed to be dried more fully. At this time, the aquatic feed is clearly separated into particles, and the scattered aquatic feed falls from the edge of the material scattering plate to the bottom of the tank body and is sent out of the tank body through the discharge pipe at the bottom of the tank body by the feeding mechanism at the bottom of the tank body, thereby completing the drying process of the aquatic feed. Description of the Drawings

[0041] Figure 1 is the overall structural schematic diagram of an efficient aquatic feed drying system in an embodiment of the present application.

[0042] Figure 2 is Figure 1 the internal structural schematic diagram of the tank body in

[0043] Figure 3 is Figure 2 a partial cross-sectional view inside the tank body in

[0044] Reference numerals: 1, tank body; 11, feed pipe; 12, discharge pipe; 2, centrifugal stirring mechanism; 21, mounting column; 211, material guiding channel; 212, mounting frame; 213, blanking port; 22, centrifugal cylinder; 221, spoiler bar; 222, return hole; 223, groove; 2231, air guiding port; 23, driving mechanism; 231, first driving member; 232, first gear; 233, internal gear ring; 3, primary drying mechanism; 31, drying cylinder; 311, ventilation hole; 32, hot air assembly; 321, blower; 322, ventilation pipe; 323, heating member; 4, secondary drying mechanism; 41, guiding plate; 5, circulation mechanism; 51, return ring; 511, return port; 52, return pipe; 6, material scattering mechanism; 61, rotating shaft; 62, second gear; 63, third gear; 64, external gear ring; 65, material scattering plate; 7, feeding mechanism; 71, second driving member; 8, aggregate bin. Detailed implementation manners

[0045] The following is a further detailed description of the present application in conjunction with the attached Figures 1-3 drawings.

[0046] An embodiment of the present application discloses an efficient drying system for aquatic feed. Referring to Figure 1 and Figure 2 , it includes a tank body 1, a feed pipe 11 fixed on the top of the tank body 1 and communicating with the inner cavity of the tank body 1, and a discharge pipe 12 fixed on the side bottom wall of the tank body 1 and communicating with the inner cavity of the tank body 1. Inside the tank body 1, there are successively arranged from top to bottom: a centrifugal stirring mechanism 2, a primary drying mechanism 3, a secondary drying mechanism 4, a circulation mechanism 5, a material scattering mechanism 6, and a feeding mechanism 7.

[0047] Referring to Figure 1 and Figure 2 , when the aquatic feed enters the tank body 1 through the feed pipe 11, the centrifugal stirring mechanism 2 can centrifugally disperse the aquatic feed entering the tank body 1, so as to disperse the aquatic feed. And the primary drying mechanism 3 can hot air dry the aquatic feed during centrifugal dispersion. When the aquatic feed is dried by the primary drying mechanism 3, it will enter the secondary drying mechanism 4 again for secondary drying. When the aquatic feed is successively dried by the primary drying mechanism 3 and the secondary drying mechanism 4, it will pass through the material scattering mechanism 6 for re-scattering and drying, and finally be further scattered by the feeding mechanism 7 and sent out of the tank body 1 and enter the discharge pipe 12.

[0048] Referring to Figure 2 and Figure 3 , the centrifugal stirring mechanism 2 includes a mounting column 21, a centrifugal cylinder 22, and a driving mechanism 23. The mounting column 21 is vertically fixedly welded on the inner top wall of the tank body 1, and the mounting column 21 is hollow and communicates with the feed pipe 11, so that the aquatic feed in the feed pipe 11 can fall into the inner cavity of the mounting column 21;

[0049] A material guiding channel 211 is also fixedly welded in the inner cavity of the mounting column 21. The material guiding channel 211 is hollow, and one end of the material guiding channel 211 communicates with one end of the mounting column 21 close to the feed pipe 11, so that the aquatic feed entering the inner cavity of the mounting column 21 from the feed pipe 11 can all enter the material guiding channel 211. The other end of the material guiding channel 211 branches out into three paths, and the three paths respectively penetrate through the outer peripheral wall of the mounting column 21. At this time, the aquatic feed in the material guiding channel 211 can fall out from the three paths at the lower end of the material guiding channel 211;

[0050] The centrifugal cylinder 22 is rotationally mounted on the outer peripheral wall of the mounting column 21 with the axis of the mounting column 21 as the rotating shaft 61, and the lower end of the material guiding channel 211 is located above the inner bottom wall of the centrifugal cylinder 22 close to it. The aquatic feed falling out from the material guiding channel 211 can all fall onto the inner bottom wall of the centrifugal cylinder 22. The barrel wall of the centrifugal cylinder 22 extends outward in a wide-mouth shape. The driving mechanism 23 can drive the centrifugal cylinder 22 to rotate. The rotating centrifugal cylinder 22 throws the aquatic feed on the bottom wall to the side wall and finally throws it out of the centrifugal cylinder 22;

[0051] Refer to Figure 3 , the driving mechanism 23 includes a first driving member 231, a first gear 232 and an internal gear ring 233. A mounting frame 212 is fixedly mounted on the mounting column 21. The mounting frame 212 is located below the bottom wall of the centrifugal cylinder 22. The first driving member 231 is a servo motor. The servo motor is mounted on the mounting frame 212, and the length direction of the output end of the servo motor is parallel to the axis direction of the mounting column 21. The first gear 232 is coaxially sleeved and fixed on the output end of the servo motor. The internal gear ring 233 is fixedly welded on the outer bottom wall of the centrifugal cylinder 22, and the rotation axis of the internal gear ring 233 coincides with the rotation axis of the centrifugal cylinder 22. The tooth surfaces of the first gear 232 and the internal gear ring 233 are meshed with each other.

[0052] When the servo motor rotates, the first gear 232 will rotate accordingly, thereby driving the internal gear ring 233 to rotate. The internal gear ring 233 drives the entire centrifugal cylinder 22 to rotate, so that the aquatic feed falling to the bottom of the centrifugal cylinder 22 is thrown to the side wall of the centrifugal cylinder 22.

[0053] When the aquatic feed is thrown to the side wall by the centrifugal cylinder 22, the primary drying mechanism 3 can perform hot air drying on the aquatic feed. Specifically, refer to Figure 1 , Figure 2 and Figure 3, the primary drying mechanism 3 includes a drying cylinder 31 and a hot air assembly 32. The drying cylinder 31 is fixedly welded to the mounting column 21 and its side wall is hollow. The drying cylinder 31 is located inside the centrifugal cylinder 22, and the top of the drying cylinder 31 is lower than the top of the centrifugal cylinder 22. A plurality of ventilation holes 311 are formed in the outer peripheral wall of the drying cylinder 31, and each ventilation hole 311 is arranged towards the inner peripheral wall of the centrifugal cylinder 22. The hot air assembly 32 is communicated with the inner cavity of the drying cylinder 31. The hot air assembly 32 can pump hot air into the inner cavity of the drying cylinder 31 and blow the hot air out through the ventilation holes 311, so as to perform hot air drying on the aquatic feed on the inner peripheral wall of the centrifugal cylinder 22.

[0054] Refer to Figure 2 and Figure 3 , the hot air assembly 32 includes a blower 321, a ventilation pipe 322 and a heating element 323. The blower 321 is fixedly installed on the outer top wall of the tank body 1. One end of the ventilation pipe 322 is communicated with the inner cavity of the drying cylinder 31, and the other end is communicated with the air outlet end of the blower 321. The heating element 323 is a heating box and an electric heating wire fixedly installed in the heating box. The middle of the ventilation pipe 322 is disconnected by the heating box, and both ends of the ventilation pipe 322 are respectively communicated with the inner cavity of the heating box. The air blown out from the air outlet end of the blower 321 enters the heating box and is heated by the electric heating wire, and then enters the inner cavity of the side wall of the drying cylinder 31 through the ventilation pipe 322, so that the air entering the inner cavity of the side wall of the drying cylinder 31 is high-temperature hot air, thereby performing high-temperature hot air drying on the moisture in the aquatic feed.

[0055] In order to enable the aquatic feed on the inner peripheral wall of the centrifugal cylinder 22 to come into contact with the hot air more fully, refer to Figure 3 , a plurality of spoiler bars 221 are fixedly welded on the inner peripheral wall of the centrifugal cylinder 22. Each spoiler bar 221 extends from the bottom of the centrifugal cylinder 22 towards the port direction of the centrifugal cylinder 22. The spoiler bars 221 can further disperse the scattered aquatic feed, so that the aquatic feed can be dried more fully.

[0056] Refer to Figure 2 and Figure 3, the secondary drying mechanism 4 includes a guide plate 41 arranged in a ring shape. One side of the guide plate 41 is fixedly sealed and welded to the inner peripheral wall of the centrifugal cylinder 22, and the other end is located above the port of the drying cylinder 31. The connection between the guide plate 41 and the centrifugal cylinder 22 is a curved surface, which facilitates the aquatic feed on the inner peripheral wall of the centrifugal cylinder 22 to be guided through the guide plate 41, and then fly out from the upper end of the guide plate 41 and fall into the inner cavity of the drying cylinder 31; a plurality of material dropping openings 213 are formed on the mounting column 21 outside the material guiding channel 211, and each material dropping opening 213 is located at the inner bottom wall of the drying cylinder 31. The inner bottom wall of the drying cylinder 31 is inclined, and the height of the bottom of the drying cylinder 31 gradually decreases from the position far away from the material dropping opening 213 to the position close to the material dropping opening 213, so that the aquatic feed falling into the drying cylinder 31 can quickly pass through the material dropping opening 213 and enter the mounting column 21 and fall out from the lower end of the mounting column 21.

[0057] Refer to Figure 2 and Figure 3 , the circulation mechanism 5 includes a return ring 51 and a return pipe 52. The peripheral wall of the centrifugal cylinder 22 is also hollow, and a plurality of return holes 222 are formed on one side of the centrifugal cylinder 22 close to the ventilation hole 311. Each return hole 222 communicates with the inner cavity of the peripheral wall of the centrifugal cylinder 22; a ring-shaped groove 223 is formed on the outer peripheral wall of the centrifugal cylinder 22 along its circumference, and a plurality of air guide openings 2231 communicating with the inner cavity of the centrifugal cylinder 22 are spaced apart at the bottom of the groove 223. The return ring 51 is hollow and fixed to the inner wall of the tank body 1. The inner peripheral wall of the return ring 51 is slidably and fittingly clamped in the groove 223, and a plurality of return openings 511 are formed on the inner peripheral wall of the return ring 51 corresponding to the air guide openings at the bottom of the groove 223. The two ends of the return pipe 52 are respectively communicated with the inner cavity of the return ring 51 and the air inlet end of the blower 321.

[0058] After the hot air dries the aquatic feed, under the suction of the air inlet end of the blower 321, the hot air will respectively pass through the air guide openings 2231 and the return openings 511 and then enter the inner cavity of the return ring 51, and then return to the air inlet end of the blower 321 through the return pipe 52, so as to realize the recycling of the hot air inside the tank body 1.

[0059] The material scattering mechanism 6 can further scatter the aquatic feed falling out of the lower end of the mounting column 21. Specifically, refer to Figure 2 and Figure 3, the bulk material mechanism 6 includes a rotating shaft 61, a second gear 62, a third gear 63, an outer gear ring 64, and a bulk material tray 65. The rotating shaft 61 is rotatably installed on the mounting frame 212, and the rotating axis of the rotating shaft 61 is parallel to that of the centrifugal cylinder 22. The second gear 62 and the third gear 63 are respectively coaxially sleeved and fixed at both ends of the rotating shaft 61. The outer gear ring 64 is rotatably sleeved on the rod body near the bottom of the mounting column 21, and the second gear 62 meshes with the inner gear ring 233, and the third gear 63 meshes with the outer gear ring 64. A plurality of fixing rods are welded and fixed below the outer gear ring 64, and the bulk material tray 65 is welded and fixed at one end of the fixing rod away from the outer gear ring 64. The bulk material tray 65 is arranged parallel to the bottom wall of the centrifugal cylinder 22 and is located below the bottom of the mounting column 21.

[0060] When the aquatic feed after two - stage drying falls out from the lower end of the mounting column 21, it will finally fall onto the bulk material tray 65. Since the bulk material tray 65 is in a rotating state, at this time, the aquatic feed will be thrown away again. During this process, the aquatic feed is broken up again, so that the aquatic feed can be dried more fully, and the aquatic feed particles are distinct at this time.

[0061] Refer to Figure 1 and Figure 2 , the feeding mechanism 7 includes a second driving member 71 and a spiral conveying blade. The second driving member 71 is a reduction motor. The reduction motor is installed on the outer side wall of the tank body 1. The spiral conveying blade is located on the inner bottom of the tank body 1. The output shaft of the reduction motor penetrates through the tank body 1 and extends into the inner cavity of the tank body 1, and the spiral conveying blade is coaxially sleeved and fixed on the output shaft of the reduction motor. The end of the spiral conveying blade away from the reduction motor extends into the discharge pipe 12.

[0062] In order to ensure that all the aquatic feed spilled out from the bulk material tray 65 can be conveyed to the discharge pipe 12 by the spiral conveying blade, refer to Figure 2 and Figure 3 , an aggregate bin 8 is fixedly installed on the inner bottom wall of the tank body 1. The upper part of the aggregate bin 8 is funnel - shaped, and the lower part is adapted to the shape of the spiral conveying blade.

[0063] During the process of the aquatic feed falling to the bottom of the tank body 1, the reduction motor drives the spiral conveying blade to convey the aquatic feed spirally, so that the aquatic feed at the bottom of the tank body 1 can be sent into the discharge pipe 12. During the process of conveying the aquatic feed, due to the relatively high temperature inside the entire tank body 1, the spiral conveying blade can still stir and dry the aquatic feed, further improving the drying effect of the aquatic feed.

[0064] The implementation principle of the high - efficiency drying system for aquatic feed in the embodiment of the present application is as follows: When the aquatic feed enters the tank body 1 from the feed pipe 11, it will enter the inner cavity of the mounting column 21, and then be sent to the inner bottom wall of the centrifugal cylinder 22 through the material guiding channel 211.

[0065] Meanwhile, the servo motor drives the first gear 232 to rotate. The rotation of the first gear 232 drives the internal gear ring 233 at the bottom of the centrifugal cylinder 22 to rotate, thereby driving the centrifugal cylinder 22 to rotate. The rotating centrifugal cylinder 22 will throw the aquatic feed on the inner bottom wall towards the inner wall of the centrifugal cylinder 22. Since the inner wall of the centrifugal cylinder 22 is in a wide-mouth shape, the aquatic feed on the centrifugal cylinder 22 will gradually slide upward. At this time, the blower 321 sends the hot air heated by the electric heating wire into the inner cavity of the side wall of the drying cylinder 31 through the ventilation pipe 322, and then sprays out from the ventilation holes 311 to hot-air dry the aquatic feed on the inner peripheral wall of the centrifugal cylinder 22;

[0066] When the aquatic feed rolls from the peripheral wall of the centrifugal cylinder 22 to the guide plate 41, the guide plate 41 can guide the aquatic feed so that the aquatic feed can fall into the inner cavity of the drying cylinder 31 more dispersedly. Since the cavity of the inner wall of the drying cylinder 31 is filled with hot air, the inner cavity of the drying cylinder 31 is also in a high-temperature state. The aquatic feed scattered into the inner cavity of the drying cylinder 31 can be further dried by the hot air, so that the moisture of the aquatic feed can be fully removed;

[0067] The aquatic feed falling on the bottom wall of the drying cylinder 31 enters the mounting column 21 through the material dropping port 213 under the action of gravity, and falls out from the lower end of the mounting column 21. The aquatic feed finally falls on the scattering plate 65. At this time, the aquatic feed will be thrown away again. During this process, the aquatic feed is scattered again, so that the aquatic feed can be dried more fully. At this time, the aquatic feed is clearly granulated, and the scattered aquatic feed falls from the edge of the scattering plate 65 to the bottom of the tank body 1. The spiral conveying blades at the bottom of the tank body 1 convey the aquatic feed to the discharge pipe 12, thus completing the drying of the aquatic feed.

[0068] The above are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An efficient drying system for aquatic feed, characterized in that: It includes a tank body (1), a feed pipe (11) arranged at the upper end of the tank body (1) and communicating with the inner cavity of the tank body (1), and a discharge pipe (12) arranged at the lower end of the tank body (1) and communicating with the inner cavity of the tank body (1). In the inner cavity of the tank body (1), the following components are arranged in sequence from top to bottom: A centrifugal stirring mechanism (2) for centrifugally dispersing the aquatic feed entering the tank body (1); the centrifugal stirring mechanism (2) includes a mounting column (21), a centrifugal cylinder (22) and a driving mechanism (23). The mounting column (21) is hollow and fixed on the inner wall of the tank body (1) and communicates with the feed pipe (11). The centrifugal cylinder (22) rotates around the axis of the mounting column (21) and is rotatably mounted on the outer peripheral wall of the mounting column (21). The barrel wall of the centrifugal cylinder (22) is arranged in a wide-mouth shape. The driving mechanism (23) is used to drive the centrifugal cylinder (22) to rotate; A material guiding channel (211) is arranged in the inner cavity of the mounting column (21). The material guiding channel (211) is located above the centrifugal cylinder (22) and is hollow, and the material guiding channel (211) penetrates through the outer peripheral wall of the mounting column (21); a material scattering mechanism (6) for scattering the aquatic feed after secondary drying is also arranged at a position near the bottom end of the mounting column (21); A primary drying mechanism (3) for performing primary hot air drying on the aquatic feed in the centrifugal stirring mechanism (2); the primary drying mechanism (3) includes a drying cylinder (31) and a hot air assembly (32). The drying cylinder (31) is fixed on the mounting column (21) and is hollow. The drying cylinder (31) is located inside the centrifugal cylinder (22). A plurality of ventilation holes (311) are formed on the outer peripheral wall of the drying cylinder (31). The hot air assembly (32) communicates with the inner cavity of the drying cylinder (31); the hot air assembly (32) includes a blower (321), a ventilation pipe (322) and a heating element (323) arranged outside the tank body (1). One end of the ventilation pipe (322) communicates with the inner cavity of the drying cylinder (31), and the other end communicates with the air outlet end of the blower (321). The heating element (323) is arranged on the ventilation pipe (322); A secondary drying mechanism (4) for performing secondary baking on the aquatic feed after hot air drying by the primary drying mechanism (3); the secondary drying mechanism (4) includes a guiding plate (41) arranged in a ring shape. One side of the guiding plate (41) is hermetically fixed to the inner peripheral wall of the centrifugal cylinder (22), and the other end is located above the port of the drying cylinder (31), A circulation mechanism (5) for circulating and refluxing the hot air in the primary drying mechanism (3); A feeding mechanism (7) for conveying the aquatic feed dried by the secondary drying mechanism (4) into the discharge pipe (12).

2. The high-efficiency drying system for aquatic feed according to claim 1, wherein: The driving mechanism (23) includes a first driving member (231) mounted on the mounting column (21), a first gear (232) coaxially sleeved and fixed on the output end of the first driving member (231), and an internal gear ring (233) fixed on the outer bottom wall of the centrifugal cylinder (22). The length direction of the first driving member (231) is parallel to the axial direction of the mounting column (21). The rotation axis of the internal gear ring (233) coincides with the rotation axis of the centrifugal cylinder (22). The first gear (232) meshes with the tooth surface of the internal gear ring (233).

3. An efficient drying system for aquatic feed according to claim 1, wherein: A plurality of spoiler bars (221) are provided on the inner peripheral wall of the centrifugal cylinder (22), and each of the spoiler bars (221) extends from the bottom of the centrifugal cylinder (22) towards the port of the centrifugal cylinder (22).

4. An efficient drying system for aquatic feed according to claim 1, characterized in that: A plurality of blanking ports (213) are formed in the mounting column (21) outside the material guiding channel (211), and each of the blanking ports (213) is located on the inner bottom wall of the drying cylinder (31). The aquatic feed in the drying cylinder (31) can pass through the blanking ports (213) into the mounting column (21) and fall out from the lower end of the mounting column (21).

5. An efficient drying system for aquatic feed according to claim 1, characterized in that: The circulation mechanism (5) includes a return ring (51) and a return pipe (52). The peripheral wall of the centrifugal cylinder (22) is also hollow, and a plurality of return holes (222) are formed on one side of the centrifugal cylinder (22) close to the ventilation holes (311). Each of the return holes (222) communicates with the inner cavity of the peripheral wall of the centrifugal cylinder (22). An annular groove (223) is formed on the outer peripheral wall of the centrifugal cylinder (22) along its circumferential direction. A plurality of air guiding ports (2231) communicating with the inner cavity of the centrifugal cylinder (22) are spaced apart at the bottom of the groove (223). The return ring (51) is hollow and fixed on the inner wall of the tank body (1). The return ring (51) is slidably and adaptively clamped in the groove (223). A plurality of return ports (511) corresponding to the air guiding ports (2231) at the bottom of the groove (223) are formed on the inner peripheral wall of the return ring (51). The two ends of the return pipe (52) are respectively communicated with the inner cavity of the return ring (51) and the air inlet end of the blower (321).

6. The efficient drying system for aquatic feed according to claim 2, wherein: The material scattering mechanism (6) includes a rotating shaft (61), a second gear (62), a third gear (63), an external gear ring (64) and a material scattering plate (65). The rotating shaft (61) is rotatably installed in the tank body (1) and is parallel to the rotation axis of the centrifugal cylinder (22). The second gear (62) and the third gear (63) are respectively coaxially sleeved and fixed on both ends of the rotating shaft (61), and the second gear (62) meshes with the internal gear ring (233). The external gear ring (64) is rotatably sleeved on the rod body of the mounting column (21) close to the bottom. The third gear (63) meshes with the external gear ring (64). The material scattering plate (65) is installed on the external gear ring (64) and is located below the bottom of the mounting column (21).

7. An efficient drying system for aquatic feed according to any one of claims 1-6, characterized in that: The feeding mechanism (7) includes a second driving member (71) installed on the tank body (1) and a spiral conveying blade that penetrates the tank body (1) and extends into the tank body (1). The spiral conveying blade is coaxially fixed to the output end of the second driving member (71), and one end of the spiral conveying blade away from the second driving member (71) extends into the discharge pipe (12).

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