A cooling device for producing pig feed antibacterial granules

Abstract

The utility model relates to cooling device technical field especially relates to a cooling device for pig feed antibacterial granule production, including base, the base installs drive mechanism on, drive mechanism drive connection has the air duct that guides, the air duct's axial both ends are equipped with the opening that penetrates, the both ends of air duct rotatory connection have first casing and second casing respectively. The utility model discloses through setting up by drive mechanism drive rotating air duct, and setting up axial fan in the axial both ends of air duct, for forming the cold air flow that flows fast in the air duct, cooperation inside spiral plate makes feed granule in the while along the axial delivery of turning over to contact with cold air flow fully, improves the cooling efficiency and cooling uniformity of feed granule, sets up filter hole in the air duct simultaneously, sets up cover and recovery subassembly outside the filter hole of air duct for separating out condensate in time, avoids the feed granule in the air duct in the process of turning over and overabsorption condensate and leads to softening.

Description

Technical Field

[0001] This utility model relates to the field of cooling device technology, and in particular to a cooling device for the production of antibacterial pellets for pig feed. Background Technology

[0002] Antibacterial pellets for pigs are a type of pig feed product produced through industrial high-temperature pelleting. Their core characteristic is the addition of antibacterial components (such as plant extracts, probiotic metabolites, or chemical antibacterial agents) to the raw materials. These components are then processed through steam conditioning, extrusion molding, and other processes to create pelleted feed with antibacterial properties. In the industrial production of antibacterial pellets for pigs, a high-temperature pelleting process is typically used to process the raw materials into pellets with specific particle sizes and antibacterial properties. During pelleting, the pellets undergo high-temperature processes such as steam conditioning and extrusion molding, resulting in the pellets carrying a significant amount of residual heat. To ensure stable feed quality, extend the shelf life, and retain the activity of the antibacterial components, the high-temperature pellets need to be cooled to near room temperature.

[0003] Traditional cooling devices typically employ a reciprocating air-cooling structure. During the cooling process, feed pellets are conveyed and reciprocate within the cooling device via a conveyor, thereby contacting the cold airflow for heat dissipation. This heat dissipation method results in the accumulation of feed pellets, leading to insufficient contact between the bottom-layer pellets and the cold airflow. Consequently, internal heat buildup is difficult to cool, resulting in low efficiency and poor uniformity. Furthermore, during the cooling process, the condensate that precipitates from the contact between the hot feed pellets and the cold airflow cannot be discharged in time, easily causing the feed pellets to absorb excessive amounts of condensate and soften, thus affecting feed quality. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for the production of antibacterial pellets for pig feed, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cooling device for producing antibacterial pellets for pig feed includes a base, on which a drive mechanism is mounted. The drive mechanism drives and connects to an air guide duct. The air guide duct has through openings at both axial ends. A first housing and a second housing are rotatably connected to the two ends of the air guide duct, respectively. An axial flow fan is installed at the end of the first housing and the second housing away from the air guide duct. A cover is rotatably connected to the outer side of the middle of the air guide duct. The middle of the air guide duct has several filter holes communicating with the cover. A recycling component is installed at one bottom end of the cover. A discharge hopper is installed at one bottom end of the first housing. A feeding device communicating with the air guide duct is installed on the second housing.

[0006] Preferably, the cover is rotatably connected to the air guide tube via a bearing, and a sealing assembly is provided between the axial ends of the cover and the air guide tube, and a plurality of filter holes are arranged around the outer periphery of the air guide tube.

[0007] Preferably, the air guide duct has guide rings at both axial ends inside, with one end of the guide ring located at the opening of the air guide duct and the other end extending close to the filter hole.

[0008] Preferably, the diameter of the guide ring gradually increases from the opening end of the air guide tube towards the filter hole end.

[0009] Preferably, the interior of the air guide duct is further provided with several spiral plates extending spirally along its axial direction, with the end of the spiral plate away from the inner wall of the air guide duct protruding from the guide ring.

[0010] Preferably, both the first housing and the second housing are rotatably connected to the air duct via bearings, and the first housing and the second housing are provided with support frames at their side ends, with the other end of the support frame being fixedly connected to the base.

[0011] Preferably, the feeding device is installed above the side end of the second housing and includes a feeding hopper. The feeding hopper is fixedly connected to the second housing, and one end of the feeding hopper passes through the second housing and is connected to a feeding pipe. The other end of the feeding pipe is connected to the air guide tube.

[0012] Preferably, the external fixed assembly of the air duct is equipped with an external gear ring and a guide ring, the drive mechanism is driven and connected to the external gear ring, and an auxiliary roller is installed on the base, the auxiliary roller being tactilely connected to the guide ring.

[0013] Preferably, the drive mechanism includes a drive motor fixedly mounted on the base, and the output end of the drive motor is driven by a reducer to connect drive teeth, which mesh with an external gear ring.

[0014] Preferably, the recycling component includes a flow guide hopper fixedly installed at the bottom of the cover, with a recycling box connected to one bottom end of the flow guide hopper, and a permeable screen provided between the flow guide hopper and the recycling box.

[0015] Compared with the prior art, this utility model provides a cooling device for the production of antibacterial pellets for pig feed, which has the following beneficial effects: 1. This utility model features a rotating air duct driven by a drive mechanism, with axial flow fans at both ends of the air duct to create a rapidly flowing cold airflow within it. Combined with an internal spiral plate, this allows feed pellets to be conveyed axially while being turned, ensuring full contact with the cold airflow and improving cooling efficiency and uniformity. Additionally, a filter is installed in the air duct, with a cover and recovery assembly outside the filter to promptly separate condensate, preventing excessive condensate absorption and softening of the feed pellets during turning.

[0016] 2. This utility model guides the cold airflow to diffuse in a directional manner by setting a guide ring inside the air duct, thereby expanding the airflow coverage area and enhancing the cooling effect. At the same time, the guide ring guides the condensate to flow to the end of the air duct with filter holes, thereby promoting the discharge of condensate and preventing condensate from stagnating in the air duct. By setting a permeable screen in the recovery component, gravity is used to achieve solid-liquid separation between feed pellet powder and condensate, thereby recovering feed powder and reducing material loss. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a three-dimensional structural diagram of the air guide duct of this utility model; Figure 4 This is a front view cross-sectional view of the internal structure of the air guide duct of this utility model; Figure 5 This is a partial cross-sectional view of the three-dimensional structure of the first housing and the air guide tube of this utility model in connection. Figure 6 This is a partial cross-sectional view of the three-dimensional structure of the second housing and the air guide tube of this utility model in connection. Figure 7 For the present utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. First housing; 101. Discharge hopper; 2. Support frame; 3. Base; 4. Auxiliary roller; 5. Second housing; 6. Air guide duct; 601. External gear ring; 602. Guide ring; 603. Flow guide ring; 604. Spiral plate; 605. Filter hole; 7. Cover; 701. Flow guide hopper; 702. Recovery box; 703. Permeate screen; 8. Feeding device; 801. Feeding hopper; 802. Feeding pipe; 9. Axial flow fan; 10. Drive mechanism; 1001. Drive motor; 1002. Drive gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Example, refer to Figure 1 - Figure 7 A cooling device for producing antibacterial pig feed pellets includes a base 3, on which a drive mechanism 10 is mounted. The drive mechanism 10 drives a guide duct 6 to rotate. The guide duct 6 has through openings at both axial ends. A first housing 1 and a second housing 5 are rotatably connected to both ends of the guide duct 6. An axial flow fan 9 (model T35-11-6.3) is installed at the end of the first housing 1 and the second housing 5 furthest from the guide duct 6. The fan 9 receives air at one end and discharges air at the other, forming a flowing cold airflow within the guide duct 6, thereby enhancing airflow inside the guide duct 6 and promoting feed pellet cooling. A cover 7 is rotatably connected to the outer side of the middle section of the guide duct 6. Several passages communicating with the cover 7 are located in the middle section of the guide duct 6. A filter hole 605 is provided. A recovery component is installed at one end of the bottom of the cover 7 to recover the condensate generated when the cold airflow comes into contact with the hot feed particles during the cooling process. This prevents the feed particles in the air duct 6 from absorbing too much condensate during the turning process, which would cause them to soften. The condensate flows out through the filter hole 605 and enters the recovery component for collection. A discharge hopper 101 is installed at one end of the bottom of the first housing 1. A feeding device 8 connected to the air duct 6 is installed on the second housing 5 to add antibacterial pig feed particles into the air duct 6. The rotation of the air duct 6 causes the feed particles to turn in the air duct 6, so that the feed particles come into full contact with the cold airflow, thereby promoting the cooling of the feed. During the turning process, the feed particles move from one end of the second housing 5 of the air duct 6 to one end of the first housing 1 and are discharged through the discharge port.

[0022] Furthermore, the cover 7 is rotatably connected to the air guide 6 via bearings, and sealing components are provided between the axial ends of the cover 7 and the air guide 6. Several filter holes 605 are arranged around the outer periphery of the air guide 6 to ensure that the cover 7 is statically fixed on the base 3 relative to the air guide 6 and has a sealing structure between it and the air guide 6 to prevent cold air leakage. The surrounding filter holes 605 are used to allow the condensate generated during the cooling process to be discharged into the cover 7 in a timely manner through the filter holes 605 of the air guide 6 during the rotation of the air guide 6 and then flow into the recovery component for collection, so as to prevent the condensate from mixing with the feed particles and causing the feed to absorb water and soften.

[0023] Furthermore, guide rings 603 are provided at both axial ends inside the air guide duct 6. One end of the guide ring 603 is set at the opening of the air guide duct 6, and the other end extends close to the filter hole 605 to guide the cold airflow generated by the axial flow fan 9 to flow in a direction within the air guide duct 6, so as to avoid the airflow from dispersing at the opening end, ensure that the airflow is concentrated and covers the area where the particles are located, and enhance the cooling effect of the airflow on the particles.

[0024] Furthermore, the diameter of the guide ring 603 gradually increases from the opening end of the air guide tube 6 towards the filter hole 605, so that the cold airflow gradually diffuses during the flow process, more evenly covering the feed particles in the air guide tube 6, increasing the contact area between the airflow and the particles, further improving the cooling uniformity, and at the same time guiding the condensate generated during the cooling process to collect in the middle of the guide tube, and then discharged through the filter hole 605.

[0025] Furthermore, the interior of the air guide duct 6 is also provided with several spiral plates 604 extending spirally along its axis. The end of the spiral plate 604 away from the inner wall of the air guide duct 6 protrudes from the guide ring 603. When the air guide duct 6 rotates, the spiral plate 604 drives the particles to turn over. At the same time, the spiral structure guides the particles to move from the second shell 5 end to the first shell 1 end. This is used to realize the orderly transportation of feed particles while turning them over, so that the transportation and cooling of feed particles can be carried out at the same time, avoiding the accumulation of feed and resulting in low cooling efficiency.

[0026] Furthermore, both the first housing 1 and the second housing 5 are rotatably connected to the air guide duct 6 via bearings, and the side ends of the first housing 1 and the second housing 5 are provided with support frames 2. The other end of the support frame 2 is fixedly connected to the base 3 to ensure that the housing and the axial flow fan 9, feeding device 8 and other components above it remain fixed, providing stable rotational support for the air guide duct 6, avoiding structural displacement during device operation, and ensuring overall stability.

[0027] Furthermore, the feeding device 8 is installed above the side end of the second housing 5, including a feeding hopper 801. The feeding hopper 801 is fixedly connected to the second housing 5, and one end of the feeding hopper 801 passes through the second housing 5 and is connected to a feeding pipe 802. The other end of the feeding pipe 802 is connected to the air guide 6, so as to realize stable and uniform feeding into the rotating air guide 6 and avoid feed particle leakage.

[0028] Furthermore, the external fixed assembly of the air guide duct 6 includes an external gear ring 601 and a guide ring 602. The drive mechanism 10 is driven and connected to the external gear ring 601. An auxiliary roller 4 is installed on the base 3. The auxiliary roller 4 is rolled and connected to the guide ring 602. The external gear ring 601 transmits power to the drive mechanism 10, causing the air guide duct 6 to rotate. The guide ring 602 cooperates with the auxiliary roller 4 to assist in supporting the air guide duct 6, preventing radial displacement during rotation, and ensuring stable rotation of the air guide duct 6.

[0029] Furthermore, the drive mechanism 10 includes a drive motor 1001 fixedly mounted on the base 3, which is a Y200L-4 type three-phase asynchronous motor. The output end of the drive motor 1001 is connected to a drive gear 1002 through a reducer. The drive gear 1002 meshes with the outer gear ring 601. The power of the drive motor 1001 is transmitted to the outer gear ring 601 after the speed is reduced and the torque is increased by the reducer, thereby driving the air guide duct 6 to rotate. This is used to turn the feed pellets, so that the feed pellets can fully contact the cold airflow for cooling, and the feed pellets are transported in the air guide duct 6.

[0030] Furthermore, the recycling component includes a guide hopper 701 fixedly installed at the bottom of the cover 7. One end of the bottom of the guide hopper 701 is connected to a recycling box 702. A permeate screen 703 is provided between the guide hopper 701 and the recycling box 702. After the condensate flows into the cover 7 through the filter holes 605, it is collected by the guide hopper 701, filtered for impurities by the permeate screen 703, and then enters the recycling box 702. The permeate screen 703 is used to block the feed pellet powder mixed with the condensate. As the mixture of condensate and feed pellet powder gathers in the guide hopper 701, it is positioned above the permeate screen 703. Under the action of gravity, the condensate is precipitated out and passes through the permeate screen 703 into the recycling box 702 for collection. The dehydrated feed pellet powder is blocked above the permeate screen 703 and is subsequently recycled for secondary granulation.

[0031] Working Principle: During the feed pellet cooling process, feed pellets are added into the air duct 6 through one end of the feed hopper 801. The drive mechanism 10 is activated, causing the air duct 6 to rotate. The axial flow fan 9 at one end of the first housing 1 starts, drawing cold air into the air duct 6, which is then driven out by the axial flow fan 9 at the other end, thus forming a flowing cold airflow inside the air duct 6. The feed pellets enter the rotating air duct 6 through the feed pipe 802. The pellets are dispersed by the spiral plate 604, preventing them from accumulating, and begin to come into contact with the cold airflow. At the same time, the spiral plate 604 pushes the pellets to move axially along the air duct 6. The guide ring 603 gradually expands from the open end of the air duct 6 towards the filter hole 605. The large airflow guides the cold air to diffuse directionally inside the air duct 6, thus fully contacting the feed pellets. Through convective heat transfer, the feed pellets are cooled. The condensate generated by the contact between the cold airflow and the hot pellets mixes with the pellets that fall off during the turning of the feed pellets, forming a solid-liquid mixture. Under the action of gravity and centrifugal force, the mixture is discharged through the filter hole 605 on the air duct 6 and enters the stationary outer cover 7. It is collected by the guide bucket 701 at the bottom of the cover 7 and separated by the percolation screen 703, flowing into the recovery box 702. The separated feed particles are processed and then granulated again. The cooled feed pellets are pushed to the end of the air duct 6 by the spiral plate 604 and discharged from the discharge hopper 101 at the bottom of the first shell 1.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling device for producing antibacterial pellets for pig feed, comprising a base (3), characterized in that: A drive mechanism (10) is installed on the base (3). The drive mechanism (10) drives and connects to the air guide tube (6). The air guide tube (6) has through openings at both ends of its axial direction. The two ends of the air guide tube (6) are respectively rotatably connected to a first housing (1) and a second housing (5). An axial flow fan (9) is installed at the end of the first housing (1) and the second housing (5) away from the air guide tube (6). A cover (7) is rotatably connected to the outer side of the middle part of the air guide tube (6). The middle part of the air guide tube (6) has several filter holes (605) that communicate with the cover (7). A recycling component is installed at one bottom end of the cover (7). A discharge hopper (101) is installed at one bottom end of the first housing (1). A feeding device (8) that communicates with the air guide tube (6) is installed on the second housing (5).

2. The cooling device for producing antibacterial pellets for pig feed according to claim 1, characterized in that, The cover (7) is rotatably connected to the air guide tube (6) via bearings, and a sealing assembly is provided between the two axial ends of the cover (7) and the air guide tube (6), and a plurality of filter holes (605) are arranged around the outer periphery of the air guide tube (6).

3. The cooling device for producing antibacterial pellets for pig feed according to claim 2, characterized in that, The air guide tube (6) has guide rings (603) at both ends of its axial direction. One end of the guide ring (603) is set at the opening of the air guide tube (6), and the other end extends close to the filter hole (605).

4. A cooling device for producing antibacterial pellets for pig feed according to claim 3, characterized in that, The diameter of the guide ring (603) gradually increases from the opening end of the air guide tube (6) toward the filter hole (605).

5. A cooling device for producing antibacterial pellets for pig feed according to claim 4, characterized in that, The air guide tube (6) is also provided with a number of spiral plates (604) extending spirally along its axial direction. The end of the spiral plate (604) away from the inner wall of the air guide tube (6) protrudes from the guide ring (603).

6. A cooling device for producing antibacterial pellets for pig feed according to claim 1, characterized in that, The first housing (1) and the second housing (5) are rotatably connected to the air duct (6) through bearings, and the side ends of the first housing (1) and the second housing (5) are provided with support frames (2), and the other end of the support frame (2) is fixedly connected to the base (3).

7. A cooling device for producing antibacterial pellets for pig feed according to claim 6, characterized in that, The feeding device (8) is installed above the side end of the second housing (5) and includes a feeding hopper (801). The feeding hopper (801) is fixedly connected to the second housing (5), and one end of the feeding hopper (801) passes through the second housing (5) and is connected to a feeding pipe (802). The other end of the feeding pipe (802) is connected to the air guide tube (6).

8. A cooling device for producing antibacterial pellets for pig feed according to claim 1, characterized in that, The air duct (6) is externally fixed with an outer gear ring (601) and a guide ring (602). The drive mechanism (10) is driven to connect with the outer gear ring (601). An auxiliary roller (4) is installed on the base (3). The auxiliary roller (4) is tumbled to connect with the guide ring (602).

9. A cooling device for producing antibacterial pellets for pig feed according to claim 8, characterized in that, The drive mechanism (10) includes a drive motor (1001) fixedly mounted on the base (3). The output end of the drive motor (1001) is connected to a drive gear (1002) via a reducer. The drive gear (1002) meshes with the outer gear ring (601).

10. A cooling device for producing antibacterial pellets for pig feed according to claim 1, characterized in that, The recycling assembly includes a flow guide hopper (701) fixedly installed at the bottom of the cover (7), and a recycling box (702) is connected to one end of the bottom of the flow guide hopper (701). A permeable screen (703) is provided between the flow guide hopper (701) and the recycling box (702).

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