Preparation method of aquatic feed for leiocassis longirostris

Abstract

The invention discloses a preparation method of an aquatic feed for leiocassis longirostris, and belongs to the field of fish feed processing. The preparation method includes the steps that feed raw materials are put into a stirring barrel to be stirred and mixed; the stirred and mixed feed is output from the stirring barrel, and the stirred and mixed feed enters a material homogenizing assembly to be further scattered; the feed scattered by the feed homogenizing assembly enters the discharge structure to be output, and meanwhile, a special preparation structure is arranged according to the preparation method. The feed mixing device has the beneficial effects that feed rises while being mixed and is impacted by the stirring rod, raw materials which are bonded into clusters are scattered, the raw materials can be conveniently mixed with other raw materials, and the feed mixing uniformity can be improved; meanwhile, in the device, the feed mixed by the stirring barrel falls on the material homogenizing net and then is subjected to the effect of the material homogenizing plate, and the clustered feed can be directly pressed to be scattered; and finally, the auger conveyor in the device is used for conveying the feed when the final mixing is executed.

Description

Technical Field

[0001] The invention relates to a method for preparing catfish aquatic feed, and belongs to the field of fish feed processing. Background Art

[0002] The channel catfish is native to America and belongs to the family Ictaluridae in the order Siluriformes. It is farmed in more than 20 provinces, municipalities and autonomous regions in China. The channel catfish was originally a carnivorous fish. After domestication, it can feed on plant-based feed. In natural waters, it mainly feeds on benthic organisms, aquatic insects, zooplankton, organic debris, plant seeds and small fish. It usually forages at the bottom and detects food by touch and smell. The eyes are larger than those of other catfish species and are adapted to visual feeding to a certain extent. They are active from sunset to midnight. They are most active when the water level rises. They rarely eat in winter. Juveniles mainly rely on plankton and aquatic insect larvae. Under artificial breeding conditions, they like to eat artificially prepared granular feeds at all growth stages. The feeding characteristics are feeding both day and night, mainly feeding on the bottom, and having the habit of feeding in groups, but they often go to the surface of the water to feed in the juvenile stage.

[0003] For the feed of channel catfish, mainly floating bait is fed, and sinking hard granular bait accounts for only a small proportion. The amount of feed is 0.75-1.00% of the fish body weight. The feeding location should be where the fish often move or where the fish can find the bait. It is best to eat it all in about 15 minutes. The protein content in the bait at the adult stage needs to reach about 30% to meet its nutritional needs. In addition to feeding with artificial compound bait, some animal food should be added before spawning and one month after spawning, such as fresh clam viscera, water earthworms, maggots, aquatic and terrestrial insects, etc.; At present, the feed for spotted catfish is mixed according to a certain ratio. The feed contains certain ingredients such as protein, enzyme, fiber, vitamins, etc., and then these ingredients are mixed and stirred evenly to form feed; however, the function of the feed stirring and mixing preparation device currently used is too single, which only adds the raw materials, stirs and mixes them, and then outputs them; so the stirred feed will have a proportion of about 5% to form a cohesive mass with larger particles; the proportion of the ingredients in such a cohesive mass is uneven, or even only has one ingredient. After the fish eats such a cohesive mass, it will affect the growth of the fish, so a new stirring and mixing preparation device is designed to reduce the probability of cohesive masses after stirring. Summary of the invention

[0004] The object of the present invention is to provide a method for preparing catfish aquatic feed, which can effectively solve the above-mentioned problems.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The invention comprises a preparation device, wherein the preparation device comprises a preparation tank, wherein a stirring barrel and a material distribution component arranged below the stirring barrel and a linkage structure for vibrating the material distribution component are arranged in the preparation tank; a material discharging structure is also arranged below the material distribution component, and the material discharging structure comprises a material dropping hopper and an auger conveyor arranged below the material dropping hopper; A linkage shaft is arranged in the mixing barrel, a mixing blade is installed on the linkage shaft, an extended end of the linkage shaft extends out of the mixing barrel, and a material balancing plate located in the material balancing assembly is arranged at the end of the linkage shaft; The material distribution component further includes a material distribution net, and the material distribution plate is arranged above the material distribution net; The linkage structure comprises a force-bearing plate arranged in the middle of the material-distributing net, a plurality of first arc-shaped protrusions evenly distributed around the circumference are arranged on the upper end of the force-bearing plate, and a second arc-shaped protrusion is arranged on the lower end surface of the linkage shaft.

[0006] Further: the first arc-shaped protrusion is provided with an arc edge on one side, and a vertical edge on the other side; the second arc-shaped protrusion is provided with an arc edge on the side opposite to the first arc-shaped protrusion, and a vertical edge on the other side.

[0007] Further: the upper end of the mixing barrel is provided with an end cover, the lower end is provided with a material drop opening and a mounting plate rotatably connected to the linkage shaft, the mounting plate is provided with reinforcing ribs around it, and one end of the reinforcing ribs is fixed to the mixing barrel; The lower end of the mixing barrel is also provided with a baffle plate for opening and closing the blanking port, and the number of the baffle plates is two, and they are opened and closed symmetrically; a mounting groove is provided in the middle of the baffle plate, a rotating shaft is provided in the mounting groove, a driven gear is provided on the rotating shaft, the driven gear is meshed with a driving gear, the driving gear key is connected to the driving shaft, the driving shaft is connected to a driving motor through a coupling, and the driving motor is installed on the lower end surface of the mounting plate.

[0008] Furthermore: the mixing barrel is divided into a large-diameter barrel, a small-diameter barrel and a conical barrel connecting the large-diameter barrel and the small-diameter barrel; the mixing blade includes a first auger arranged in the small-diameter barrel, a second auger arranged in the conical barrel, and a mixing rod arranged in the large-diameter barrel; the diameter of the second auger gradually increases from bottom to top; and a conical head is also arranged on the mixing rod.

[0009] Furthermore: an injection assembly is also arranged in the mixing barrel, and the injection assembly includes an air pump, an air duct is connected to the output end of the air pump, and the air duct is connected to a rotary joint, and teeth are arranged on the outside of the rotating disk of the rotary joint, and the teeth are meshed with a driving gear, and the driving gear is driven by an electric motor; and the upper part of the linkage shaft and the stirring rod are arranged as a hollow structure, the stirring rod is connected to the hollow part of the linkage shaft, and an air outlet is arranged on the conical head.

[0010] Furthermore: the linkage shaft is divided into a ventilation shaft, a stirring shaft, and a driving shaft from top to bottom; the ventilation shaft, the stirring shaft, and the driving shaft are all connected by a coupling; the ventilation shaft is connected to the stirring rod, the stirring shaft is connected to the first auger and the second auger, and the driving shaft is connected to the material equalizing plate through a mounting ring.

[0011] Furthermore: the lower end of the material balancing plate is evenly distributed with scraping grooves, and the material of the material balancing net is an elastic fiber net.

[0012] Furthermore: an electric heating coil is wound around the outside of the small-diameter barrel.

[0013] The beneficial effects are: After the feed is stirred by the first and second auger, the mixing process is first carried out and the feed will rise in the mixing barrel. After rising, the mixed feed begins to be hit by the stirring rod; the raw materials that are clumped together are broken up to facilitate mixing with other raw materials, which can improve the uniformity of feed mixing; at the same time, the design of the conical head can be inserted into the clumped raw materials in a pointed manner, which improves the efficiency of breaking up the clumped materials.

[0014] In this device, the feed mixed by the mixing barrel falls on the material leveling net and then is acted upon by the material leveling plate. The material leveling plate is set at a 45-degree inclination. When it rotates, the raw materials that are clumped together will be pressed under the material leveling plate. If the bonding force is weak, the raw materials will be directly crushed. If the bonding force is strong, the raw materials will continue to rotate on the material leveling net with the material leveling plate until they are crushed.

[0015] The auger conveyor in this device not only has the function of mixing raw materials, but also has the function of feeding. After the above measures, when most of the feed has been mixed, the auger conveyor can not only crush and mix the last few sticky clumps, but also directly transmit the evenly mixed feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is the small diameter barrel parts diagram of the present invention; Figure 3 for Figure 2 Middle partial enlarged picture; Figure 4 It is the blanking port parts diagram of the present invention; Figure 5 It is the parts diagram of the stirring rod of the present invention; Figure 6 It is the linkage structure parts diagram of the present invention.

[0018] Description of reference numerals: 1. Preparation tank; 2. Mixing barrel; 21. Large diameter barrel; 22. Small diameter barrel; 23. Conical barrel; 3. Material distribution assembly; 31. Material distribution plate; 32. Material distribution net; 33. Scraping groove; 4. Linkage structure; 41. Force plate; 42. First arc-shaped protrusion; 43. Second arc-shaped protrusion; 5. Linkage shaft; 51. Ventilation shaft; 52. Mixing shaft; 53. Drive shaft; 6. Mixing blade; 61. First auger; 62. Second auger; 63. Mixing rod; 64. Conical head; 7. Mounting plate; 8. Reinforcing ribs; 9. Baffle; 10. Mounting groove; 11. Rotating shaft; 12. Driven gear; 13. Driving gear; 14. Driving shaft; 15. Driving motor; 16. Electric heating ring; 17. Jet assembly; 171. Air pump; 172. Air guide tube; 173. Rotary joint; 174. Rotating disk; 175. Driving gear; 176. Air outlet; 18. Motor; 19. Drop hopper; 20. Auger conveyor. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] It should be noted that, in the description of the present invention, unless otherwise specified, “plurality” means two or more than two; the orientations or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside”, “front end”, “rear end”, “head” and “tail” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Furthermore, the terms “first,” “second,” “third,” etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0022] Meanwhile, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-6 This is an embodiment of a method for preparing catfish aquatic feed of the present invention. See also Figure 1 , comprising a preparation device, the preparation device comprising a preparation tank 1, the preparation tank 1 is provided with a stirring barrel 2 and a material distribution component 3 arranged below the stirring barrel 2, and a linkage structure 4 for vibrating the material distribution component 3; a material discharging structure is also arranged below the material distribution component 3, and the material discharging structure comprises a material drop hopper 19 and an auger conveyor 20 arranged below the material drop hopper 19; Specifically, during preparation, the raw materials of the feed are mixed with a certain proportion of additives and added into the mixing barrel 2 in the preparation tank 1 for mixing; the mixed feed is output from the mixing barrel 2 and enters the material leveling component 3 below to evenly break up the mixed feed. The purpose of this is that the raw materials may stick together to form a cohesive mass when mixed, so the material leveling component 3 can be used to break up the cohesive mass of feed to help mix the raw materials of the feed; The broken feed enters the auger conveyor 20 through the drop hopper 19 for further mixing. The reason for this arrangement is that if the feed raw materials in the mixing barrel 2 form a sticky mass, the mixing barrel 2 cannot evenly mix it with other raw materials. When these sticky raw materials enter the material mixing component 3, the material mixing component 3 can break them up. However, the material mixing component 3 does not have a good raw material mixing function. It only performs the function of agglomerating, and cannot complete the feed mixing operation. Therefore, the broken raw materials will fall into the auger conveyor 20 for re-mixing. The reason why the present device adopts the auger conveyor 20 is that the auger conveyor 20 not only has the function of mixing raw materials, but also has the function of feeding. However, the mixing function of the auger conveyor 20 is relatively poor, so the use of the auger conveyor 20 under the condition that most of the feed has been mixed can perfectly match the function of the present device.

[0024] This device improves the structure of stirring raw materials; See also Figure 2 , Figure 3 , Figure 4A linkage shaft 5 is provided in the mixing barrel 2, and a stirring blade 6 is installed on the linkage shaft 5. At the same time, the mixing barrel 2 is divided into a large-diameter barrel 21, a small-diameter barrel 22 and a conical barrel 23 connecting the large-diameter barrel 21 and the small-diameter barrel 22. The stirring blade 6 includes a first auger 61 arranged in the small-diameter barrel 22, a second auger 62 arranged in the conical barrel 23, and a stirring rod 63 arranged in the large-diameter barrel 21; the diameter of the second auger 62 gradually increases from bottom to top; and a conical head 64 is also arranged on the stirring rod 63.

[0025] In the field, the stirring of feed is basically carried out by auger stirring. In this device, the first auger 61 is located in the small-diameter barrel 22 at the bottom; the first auger 61 works and rotates, which drives the feed in the small-diameter barrel 22 to spirally rise. During the rising process, the raw materials are mixed with each other. At the same time, the feed will enter the conical barrel 23 and receive the stirring of the second auger 62. This device improves the structure of the second auger 62. The diameter of the second auger 62 gradually increases from bottom to top, so the area for driving the raw materials to rise gradually increases, and the volume of the raw materials that can be quickly mixed is also getting larger and larger; compared with the small-diameter barrel 22 and the first auger 61, the stirring effect of the conical barrel 23 combined with the second auger 62 is more excellent; After the feed is stirred by the second auger 62, it will also rise with the second auger 62, and at this time the feed will enter the large diameter barrel 21, and then be stirred by the stirring rod 63. At this time, the stirring rod 63 is completely different from the raw material mixing method of the first auger 61 and the second auger 62; the stirring rod 63 will hit the raw materials rising continuously from below, break up the raw materials that are clumped together, and facilitate mixing with other raw materials, which can improve the uniformity of feed mixing; The device is also provided with a conical head 64 on the stirring rod 63. The conical head 64 can be inserted into the raw materials that are clumped together in a pointed manner. Then the conical structure can directly break the clumped raw materials to achieve the effect of breaking up the raw materials and improving the efficiency of feed mixing.

[0026] At the same time, in this device, a raw material circulation gap is provided between the first auger 61 and the small-diameter barrel 22 or between the second auger 62 and the conical barrel 23. After the raw materials are lifted by the first auger 61 and the second auger 62, the raw materials will diffuse to the surroundings, fall through the circulation gap between the second auger 62 and the conical barrel 23, and enter the circulation gap between the first auger 61 and the small-diameter barrel 22, completing the mixing cycle of the raw materials. Moreover, when the raw materials enter the circulation gap between the second auger 62 and the conical barrel 23, if the raw materials are stuck together, they cannot enter. Therefore, the raw materials entering the circulation gap between the second auger 62 and the conical barrel 23 are in a relatively evenly mixed small particle state; after the raw materials have been circulated for many times, they will basically be mixed evenly. At this time, the mixing barrel 2 can be opened to allow the mixed raw materials to fall into the material equalization component 3 below.

[0027] The material distribution component 3 in the present device includes a material distribution net 32 ​​and a material distribution plate 31, which are located above the mixing barrel 2. When the raw materials are discharged, they will fall on the material distribution net 32. At this time, small particles of material will directly fall through the holes of the material distribution net 32, while the raw materials that are still clumped together will be left on the material distribution net 32; then the material distribution plate 31 is rotated, and the material distribution plate 31 will rotate above the material distribution net 32; the material distribution plate 31 of the present device is set to be inclined at forty-five degrees. When rotating, the raw materials that are clumped together will be pressed under the material distribution plate 31. If the bonding force is very weak, the raw materials will be directly crushed; if the bonding force is strong, they will follow the material distribution plate 31 and continue to rotate on the material distribution net 32 ​​until they are crushed.

[0028] At the same time, due to the design of the small-diameter barrel 22 of the mixing barrel 2 in the present device, the area for the feed to be output from the mixing barrel 2 is limited, so the feed will accumulate in the middle part of the material-distributing net 32, which will block the mesh holes of the material-distributing net 32. The rotation of the material-distributing plate 31 can evenly spread the feed on the material-distributing net 32, thereby accelerating the filtering of the feed.

[0029] See also Figure 6 In the present device, the structure for driving the material balancing plate 31 to rotate is the linkage shaft 5, so there is no need to add an additional power source for the rotation of the material balancing plate 31, which can save costs; when the feed is stirred, the stirring barrel 2 is not opened, that is, there is no feed on the material balancing plate 31, so the material balancing plate 31 follows the linkage shaft 5 to idle at this time. When idling, the resistance is only air, and the force applied to the first auger 61, the second auger 62, and the stirring rod 63 on the linkage shaft 5 is negligible.

[0030] When the mixing barrel 2 is opened, the feed will gradually fall from the mixing barrel 2 onto the material equalizing net 32. At this time, the material equalizing plate 31 will be subjected to force. However, when the force mainly comes from the feed, the amount of feed becomes the main factor in the magnitude of the force. Therefore, the feed falling from the mixing barrel 2 into the material equalizing net 32 ​​will not additionally increase the torque exerted on the linkage shaft 5.

[0031] However, when the material distribution component 3 is in use, the applicant found that the mesh of the material distribution net 32 ​​in the material distribution component 3 may be blocked, so the device is provided with a linkage structure 4, which includes a force-bearing plate 41 arranged in the middle of the material distribution net 32, and a plurality of circumferentially evenly distributed first arc-shaped protrusions 42 are arranged on the upper end of the force-bearing plate 41, and a second arc-shaped protrusion 43 is arranged on the lower end face of the linkage shaft 5.

[0032] See also Figure 6 When the linkage shaft 5 rotates, the second arc-shaped protrusion 43 at the lower end of the linkage shaft 5 will rotate accordingly, and at the same time, the second arc-shaped protrusion 43 will contact the first arc-shaped protrusion 42 at the upper end of the force-bearing plate 41, and the two arc-shaped protrusions interact with each other to generate a force. At this time, since the net structure of the material-equalizing net 32 ​​has elastic deformation ability, the force-bearing plate 41 is pressed down, causing the middle part of the entire material-equalizing net 32 ​​to be concave; then, as the linkage shaft 5 continues to rotate, the second arc-shaped protrusion 43 separates from the first arc-shaped protrusion 42, and the first arc-shaped protrusion 42 is not subjected to force. The force-bearing plate 41 will bounce upward due to the elasticity of the material-equalizing net 32, completing a vibration of the material-equalizing net 32; Therefore, the linkage shaft 5 rotates continuously, and the first arc-shaped protrusion 42 and the second arc-shaped protrusion 43 are in continuous contact and separation, so that the material distribution net 32 ​​can continuously vibrate up and down. The vibrating material distribution net 32 ​​can vibrate open the blocked mesh holes to avoid the mesh hole blockage affecting the filtering effect of the material distribution net 32.

[0033] The first arc-shaped protrusion 42 is provided with an arc edge on one side and a vertical edge on the other side, and the upper end surface of the first arc-shaped protrusion 42 is a plane; the second arc-shaped protrusion 43 is provided with an arc edge on the side opposite to the first arc-shaped protrusion 42, and the other side is provided with a vertical edge, and the lower end surface of the second arc-shaped protrusion 43 is a plane; in this way, the first arc-shaped protrusion 42 and the second arc-shaped protrusion 43 can smoothly make the two planes contact through the arc edges of the two planes, and elastically deform the material equalizing net 32. At the same time, when the first arc-shaped protrusion 42 is not in contact with the second arc-shaped protrusion 43, the deformation force will suddenly disappear, and the deformation of the material equalizing net 32 ​​will suddenly rebound to form vibration, which can improve the vibration effect of the material equalizing net 32.

[0034] The lower end of the material distribution plate 31 is evenly distributed with scraping grooves 33, and the material of the material distribution net 32 ​​is an elastic fiber net.

[0035] The elastic fiber net can be made of a very high-strength nylon woven net or polymer fiber material; it has strong stress deformation capacity, corrosion resistance, and a long service life; the scraping groove 33 at the lower end of the equalizing plate 31 can regularize the feed located above the equalizing net 32; at the same time, the number of equalizing plates 31 of this device is two, and they are symmetrically arranged; when one equalizing plate 31 regularizes the feed, when the other equalizing plate 31 rotates, it will break up the regularized feed, which can improve the filtering effect of the feed; the specific structure can make two equalizing plates 31 of the same length overlap, at this time it can be found that the scraping grooves 33 on the two equalizing plates 31 are staggered.

[0036] The linkage structure 4 adopted in the device only needs two protrusions and a force-bearing plate 41 to be realized, and the cost is low. At the same time, the upward vibration amplitude of the material distribution net 32 ​​can be controlled so as not to cause the feed to be vibrated very high. Such a setting can save the cost of the vibration motor, and at the same time, the linkage shaft 5 is used to provide the vibration force, which can save additional power and reduce energy consumption.

[0037] In the present device, since the material balancing plate 31 in the material balancing assembly 3 and the stirring blades 6 in the stirring barrel 2 share a linkage shaft 5, in order to stabilize the linkage shaft 5, a mounting plate 7 rotatably connected to the linkage shaft 5 is arranged in the middle position of the lower end of the stirring barrel 2, and reinforcing ribs 8 are arranged around the mounting plate 7, and one end of the reinforcing ribs 8 is fixed on the stirring barrel 2; at the same time, the diameter of the mounting plate 7 is smaller than the inner diameter of the stirring barrel 2, so the gap between the edge of the mounting plate 7 and the inner diameter of the stirring barrel 2 forms a ring-shaped feed opening; when the feed in the stirring barrel 2 is stirred, the feed opening passes through the pipe wall of the baffle 9, and when the stirring is completed, the baffle 9 is opened, and the feed passes through the feed opening smoothly along the gap between the first auger 61 and the small-diameter barrel 22, and is output from the stirring barrel 2.

[0038] Therefore, the fact that the material distribution plate 31 in the material distribution component 3 and the stirring blade 6 in the stirring barrel 2 in the present device share a linkage shaft 5 does not affect the output rate of the feed from the stirring barrel 2; on the contrary, during the process of feed output, the first auger 61 will also rotate. In the absence of the baffle 9, the centripetal force of the rotation of the first auger 61 will cause the feed to move toward the barrel wall of the small-diameter barrel 22, thereby accelerating the output of the feed.

[0039] There are two baffles 9, which are symmetrically opened and closed; a mounting groove 10 is provided in the middle of the baffle 9, and the main function of the mounting groove 10 is to provide an installation space, because the linkage shaft 5 will occupy a part of the installation space, so the mounting groove 10 is provided; A rotating shaft 11 is arranged in the mounting groove 10 , a driven gear 12 is arranged on the rotating shaft 11 , a driving gear 13 is meshed with the driven gear 12 , the driving gear 13 is key-connected to a driving shaft 14 , the driving shaft 14 is connected to a driving motor 15 through a coupling, and the driving motor 15 is mounted on the lower end surface of the mounting plate 7 .

[0040] When the baffle 9 is opened, the driving motor 15 can be turned on, the driving motor 15 works, drives the driving gear 13 to rotate, and then drives the meshing driven gear 12, and the driven gear 12 drives the key-connected rotating shaft 11, so as to realize the opening and closing of the baffle 9. Limiting plates are arranged at both ends of the rotating shaft 11 in the device, and the limiting plates are mainly used to install the rotating shaft 11, and have the same function as the limiting plates at the ends of the driving shaft 14 in the figure, but they are not marked in the figure.

[0041] See also Figure 5 In order to break the raw materials that are clumped together, the device is provided with a stirring rod 63, and a conical head 64 is provided on the stirring rod 63 to facilitate breaking the raw materials that are clumped together. However, in actual use, if a good breaking effect is desired, the time that the raw materials stay in the stirring barrel 2 needs to be increased; this will undoubtedly increase the cost of feed preparation; therefore, in order to improve the breaking efficiency, the device introduces an air jet assembly 17; The jet assembly 17 includes an air pump 171, and an air guide tube 172 is connected to the output end of the air pump 171; the air pump 171 of the device is not installed at the upper end of the mixing barrel 2 as shown in the figure, but can be installed anywhere, as long as the air guide tube 172 is long enough; At the same time, the air guide tube 172 is connected to a rotary joint 173, which is a commonly used connection device in the field, and its purpose is to allow liquid, gas and other media to be introduced while rotating; generally speaking, the rotary joint 173 has an input head for gas and liquid connection and a rotating disk 174, and the rotating disk 174 in the present device is provided with teeth on the outside, and the teeth are meshed with a driving gear 175, and the driving gear 175 is provided with a driving force by the motor 18; so when the motor 18 is started, the rotating disk 174 can rotate, and the input head on the rotating disk 174 is connected to the air guide tube 172, and the introduced gas can enter the hollow linkage shaft 5; In the present device, the upper part of the linkage shaft 5 and the stirring rod 63 are arranged as a hollow structure, the stirring rod 63 is connected with the hollow part of the linkage shaft 5, and an air outlet 176 is arranged on the conical head 64; therefore, the introduced gas will enter the stirring rod 63 after passing through the linkage shaft 5, then enter the conical head 64, and finally be output from the air outlet 176; the air flow impact can be performed on the feed that is stuck together, the efficiency of crushing is improved, and the stirring time is reduced.

[0042] The conical head 64 of the device has four air outlet holes 176 which are evenly distributed on the conical surface of the conical head 64 and are inclined. With this arrangement, airflow can be blown out from four directions, crushing and impacting the clumped feed from multiple angles, further improving the crushing efficiency.

[0043] The linkage shaft 5 of the device is divided into a ventilation shaft 51, a stirring shaft 52, and a driving shaft 53 from top to bottom; the ventilation shaft 51, the stirring shaft 52, and the driving shaft 53 are all connected by a coupling; the ventilation shaft 51 is connected to the stirring rod 63, the stirring shaft 52 is connected to the first auger 61 and the second auger 62, and the driving shaft 53 is connected to the material balancing plate 31 through a mounting ring.

[0044] The air passage can be unblocked through the ventilation shaft 51 at the upper part of the linkage shaft 5, the feed can be stirred through the stirring shaft 52 in the middle part of the linkage shaft 5, and the feed can be further crushed through the driving shaft 53; the multi-layer linkage can save a lot of cost.

[0045] An electric heating coil 16 is wrapped around the outside of the small-diameter barrel 22; the electric heating coil 16 in the device can be turned on according to the characteristics of the feed and the weather characteristics. If the air is relatively humid on that day, after a long stirring time, the feed will absorb moisture in the air, resulting in an increase in the humidity of the feed. At this time, the electric heating coil 16 can be turned on to dry the feed and facilitate the stirring and mixing of the feed.

[0046] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A method for preparing catfish aquatic feed, Features: The invention comprises a preparation method: S1: putting feed raw materials into a stirring barrel (2) for stirring and mixing; S2: discharging the stirred and mixed feed from the stirring barrel (2) and allowing the feed to enter a material distribution component (3) for further breaking up; S3: the feed broken up by the material distribution component (3) enters a discharging structure for discharging the feed; the invention comprises a preparation device: the preparation device comprises a preparation tank (1), the preparation tank (1) is provided with the stirring barrel (2) and the material distribution component (3) arranged below the stirring barrel (2), and a linkage structure (4) for vibrating the material distribution component (3); a discharging structure is also arranged below the material distribution component (3), and the discharging structure comprises a drop hopper (19) and an auger conveyor (20) arranged below the drop hopper (19); A linkage shaft (5) is arranged in the mixing barrel (2), a mixing blade (6) is installed on the linkage shaft (5), an extended end of the linkage shaft (5) protrudes out of the mixing barrel (2), and a material distribution plate (31) located in the material distribution component (3) is arranged at the end of the linkage shaft (5); the material distribution component (3) also includes a material distribution net (32), and the material distribution plate (31) is arranged above the material distribution net (32); the linkage structure (4) includes a force-bearing plate (41) arranged in the middle of the material distribution net (32), a plurality of first arc-shaped protrusions (42) uniformly distributed around the circumference are arranged on the upper end of the force-bearing plate (41), and a second arc-shaped protrusion (43) is arranged on the lower end surface of the linkage shaft (5).

2. The method for preparing catfish aquatic feed according to claim 1, Features: The first arc-shaped protrusion (42) is provided with an arc edge on one side and a vertical edge on the other side; the second arc-shaped protrusion (43) is provided with an arc edge on the side opposite to the first arc-shaped protrusion (42) and a vertical edge on the other side.

3. The method for preparing catfish aquatic feed according to claim 2, Features: The mixing barrel (2) is provided with an end cover at the upper end, a material discharge port at the lower end, and a mounting plate (7) rotatably connected to the linkage shaft (5), wherein the mounting plate (7) is provided with reinforcing ribs (8) around the periphery, and one end of the reinforcing ribs (8) is fixed to the mixing barrel (2); the mixing barrel (2) is also provided with a baffle (9) for opening and closing the material discharge port, wherein two baffles (9) are provided and open and close symmetrically; a mounting groove (10) is provided in the middle of the baffle (9), wherein a rotating shaft (11) is provided in the mounting groove (10), wherein a driven gear (12) is provided on the rotating shaft (11), wherein the driven gear (12) is meshed with a driving gear (13), wherein the driving gear (13) is key-connected to a driving shaft (14), wherein the driving shaft (14) is connected to a driving motor (15) via a coupling, wherein the driving motor (15) is mounted on the lower end surface of the mounting plate (7).

4. The method for preparing catfish aquatic feed according to claim 3, Features: The stirring barrel (2) is divided into a large-diameter barrel (21), a small-diameter barrel (22), and a conical barrel (23) connecting the large-diameter barrel (21) and the small-diameter barrel (22). The stirring blade (6) comprises a first auger (61) arranged in the small-diameter barrel (22), a second auger (62) arranged in the conical barrel (23), and a stirring rod (63) arranged in the large-diameter barrel (21); the diameter of the second auger (62) gradually increases from bottom to top; and the stirring rod (63) is also provided with a conical head (64).

5. The method for preparing catfish aquatic feed according to claim 4, Features: The mixing barrel (2) is further provided with an air jet assembly (17), the air jet assembly (17) comprising an air pump (171), the output end of the air pump (171) being connected to an air guide tube (172), the air guide tube (172) being connected to a rotary joint (173), the rotating disk (174) of the rotary joint (173) being provided with teeth on the outside, the teeth being meshed with a driving gear (175), the driving gear (175) being provided with a driving force by a motor (18); the upper part of the linkage shaft (5) and the stirring rod (63) being provided with a hollow structure, the stirring rod (63) being connected to the hollow part of the linkage shaft (5), and an air outlet hole (176) being provided on the conical head (64).

6. The method for preparing catfish aquatic feed according to claim 5, Features: The linkage shaft (5) is divided into a ventilation shaft (51), a stirring shaft (52), and a driving shaft (53) from top to bottom; the ventilation shaft (51), the stirring shaft (52), and the driving shaft (53) are all connected via a coupling; the ventilation shaft (51) is connected to the stirring rod (63), the stirring shaft (52) is connected to the first auger (61) and the second auger (62), and the driving shaft (53) is connected to the material balancing plate (31) via a mounting ring.

7. The method for preparing catfish aquatic feed according to claim 6, Features: The lower end of the material distribution plate (31) is evenly distributed with scraping grooves (33), and the material of the material distribution net (32) is an elastic fiber net.

8. The method for preparing catfish aquatic feed according to claim 7, Features: An electric heating coil (16) is wound around the outside of the small-diameter barrel (22).

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