Broiler chicken pellet feed cooling and drying equipment

Abstract

This utility model discloses a cooling and drying device for broiler pellet feed, including a storage tank; an extrusion mechanism comprising multiple sets, each including an extrusion pipe and a cutting assembly. The extrusion pipe is connected to the bottom of the storage tank, and the cutting assembly is connected to the storage tank to cut the feed extruded from the extrusion pipe; a cooling mechanism disposed in the extrusion pipe to cool the feed passing through the extrusion pipe; and a drying mechanism disposed at the outlet end of the extrusion pipe to collect the extruded feed pellets and dry the collected feed pellets with air blowing. Through this structure, the feed is rapidly cooled before extrusion to reduce the temperature of the base material to near room temperature. Simultaneously, forced cooling air and the feed passing through a narrow guide channel improve the utilization efficiency of the drying air.

Description

Technical Field

[0001] This utility model relates to feed processing equipment, and in particular to a cooling and drying device for broiler pellet feed. Background Technology

[0002] Broiler feed contains various components: energy materials, protein materials, minerals, etc. These materials are ground into powder or fine granules, then uniformly mixed and processed into a paste, which is then extruded into fine pellets. It's important to note that broiler pellets need to be rapidly cooled to room temperature after high-temperature pelleting to prevent mold growth. Traditional broiler feed cooling primarily relies on air cooling, i.e., blowing cooling air onto the feed surface to quickly lower the feed temperature to room temperature. However, this cooling method has the following drawbacks: after extrusion, the core of the feed relies entirely on heat exchange with the outer layer, resulting in slow cooling of the core. This necessitates extremely long cooling belts to support existing air-cooled feed, leading to large space requirements and low cooling efficiency. Furthermore, current feed drying methods mainly rely on cooling air blowing across the feed surface to remove moisture and ensure the feed reaches the required moisture content. However, existing air drying mainly relies on natural convection, resulting in extremely low utilization efficiency of the drying air in air drying equipment. Usually, only the drying air at the bottom that comes into contact with the feed achieves the drying effect, while the remaining drying air passing through the upper layers is wasted, leading to serious resource waste. Utility Model Content

[0003] The purpose of this invention is to provide a cooling and drying device for broiler pellet feed to improve the cooling and drying efficiency of the feed.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A broiler pellet feed cooling and drying device, comprising

[0006] Storage bins;

[0007] An extrusion feeding mechanism, comprising multiple sets, including an extrusion tube and a cutting assembly, wherein the extrusion tube is connected to the bottom of a storage tank and the cutting assembly is connected to the storage tank to cut the feed extruded from the extrusion tube;

[0008] A cooling mechanism is installed in the extrusion tube to cool the feed passing through the extrusion tube;

[0009] The air-drying mechanism is located at the discharge end of the extrusion pipe to collect the extruded feed pellets and dry them by blowing air.

[0010] Preferably, the cooling mechanism includes a fan A, and an air guide pipe A is connected to the air outlet of the fan A. The air guide pipe A extends into the extrusion pipe in a U-shape, and the air outlet of the air guide pipe A extends out of the extrusion pipe.

[0011] Preferably, a blower hood A is also connected to the air outlet of the blower A, and the blower hood A is positioned facing the outer surface of the extrusion tube.

[0012] Preferably, a baffle plate is also provided on the side of the extrusion tube facing away from the blower hood A. The baffle plate is coaxially arranged with the extrusion tube and the curvature is between 160° and 180°.

[0013] Preferably, the wind deflector is provided with ventilation holes evenly spaced.

[0014] Preferably, the air-drying mechanism includes a receiving hopper and a blower B. The lower end of the receiving hopper is connected to a guide channel. Air grooves are respectively provided on the upper and lower side plates of the guide channel. A blower hood B is provided on the air grooves. An air guide pipe B is connected to the blower hood B. The air guide pipe B is connected to the air inlet and outlet of the blower B. A dryer is also provided between the air outlet of the blower B and the air guide pipe B. A conveyor roller group is also provided on the guide channel. The mesh belt passes through the upper and lower side plates of the guide channel and is wound around the conveyor roller group.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: The cooling mechanism in this solution extends into the extrusion pipe to rapidly cool the unextruded feed, reducing the initial temperature of the base feed. Simultaneously, the mesh belt in the drying mechanism drives the feed pellets through the guide channel, and as the material passes through the guide channel, forced drying air is blown between the feed pellets to achieve the purpose of drying the feed. It should be noted that the guide channel in this solution is relatively narrow; when the drying air blows from the upper / lower side of the guide channel to the lower / upper side, the drying air can only pass through the gaps between the feed pellets, thus maximizing the utilization of the drying air. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 A sectional view;

[0018] Figure 3 This is a schematic diagram of the cooling mechanism in this utility model;

[0019] Figure 4 yes Figure 3 A sectional view.

[0020] Reference numerals: 1. Storage hopper; 2. Extrusion mechanism; 21. Extrusion pipe; 22. Cutting assembly; 221. Telescopic cylinder; 222. Cutter; 3. Cooling mechanism; 31. Fan A; 32. Air duct A; 33. Air blower hood A; 34. Baffle plate; 341. Ventilation hole; 4. Drying mechanism; 41. Receiving hopper; 42. Fan B; 43. Guide channel; 431. Upper and lower side plates; 432. Air duct; 44. Air blower hood B; 45. Air duct B; 46. Dryer; 47. Conveyor roller group; 48. Mesh belt. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-4As shown, the device includes a storage tank 1 for storing uniformly mixed feed. Multiple extrusion mechanisms 2 are horizontally arranged at the bottom of the storage tank. Each extrusion mechanism 2 includes an extrusion pipe 21 connected to the bottom of the storage tank 1 and a cutting assembly 22 mounted on the extrusion pipe 21. The cutting assembly includes a telescopic cylinder 221 and a cutter 222 connected to the telescopic cylinder. In this design, the cutter is flush with the lower end face of the extrusion pipe and, after the telescopic cylinder extends, can cut the feed extruded outside the extrusion pipe to form feed pellets.

[0025] It is important to note that in this design, the moisture content of the feed remains higher than the set value after being cut into pellets by the cutting component. Therefore, the receiving feed pellets need to be dried by air drying mechanism 4. Furthermore, to maximize the cooling efficiency of shortening the core of the feed pellets, this design cools the feed as a whole (to near room temperature) before extrusion. For this purpose, a cooling mechanism 3 is provided, which extends into the extrusion tube to cool the material entering the tube.

[0026] It should be noted that in the above scheme, the cooling mechanism 3 includes a fan A31, and an air guide pipe A32 is connected to the air outlet of the fan A. The air guide pipe A passes through the extrusion pipe in a U-shape. It should be understood that when the fan A starts, cooling air quickly passes through the air guide pipe A to cool the material passing through the air guide pipe A. It should be noted that the air guide pipe A can be made of materials with high thermal conductivity, such as copper or aluminum. It should also be noted that in this scheme, the extrusion pipe is a gradually narrowing stepped pipe, so the feed will mix when passing through the narrowing section to ensure the uniformity of the extruded feed temperature.

[0027] In addition, it should be noted that in order to improve the uniformity of cooling of the feed inside and outside the extrusion tube, a blower hood A33 is connected to the air outlet of the blower A. The blower hood A is set facing the outer surface of the extrusion tube 21 so that while the blower A cools the feed temperature inside the extrusion tube through the air guide tube A, it can also cool the feed on the outer layer of the extrusion tube.

[0028] It should also be noted that in the above scheme, a baffle plate 34 can be installed on the side of the extrusion pipe 21 facing away from the blower hood A. This baffle plate is coaxially arranged with the extrusion pipe. There is a gap channel between the baffle plate and the extrusion pipe for cooling air to pass through. When the cooling air blown out by the blower hood A passes through the extrusion pipe towards the side of the blower hood A, it enters the channel between the extrusion pipe and the baffle plate, thereby efficiently cooling the material on the other side of the extrusion pipe and ensuring the uniformity of cooling of the material on both the front and back sides of the extrusion pipe. It should be noted that in order to ensure that the air passing through the front side of the extrusion pipe can enter the space between the extrusion pipe and the baffle plate to the maximum extent, the curvature of the baffle plate is between 160° and 180°.

[0029] It should also be noted that after the cooling air enters between the baffle plate and the extrusion pipe, the portion of air that has already undergone cooling needs to dissipate quickly to ensure that the subsequent cooling air can continuously replenish the flow. Therefore, several ventilation holes 341 are evenly distributed on the baffle plate.

[0030] Furthermore, it should be noted that in this solution, the drying mechanism 4 includes a receiving hopper 41 located below the extrusion mechanism and a blower B42. The discharge end of the receiving hopper 41 is connected to a guide channel 43, which has upper and lower side plates 431, on which several air troughs 432 are evenly distributed. It should be noted that a blower hood B44 is also installed over the air hood, and this blower hood B is connected to the blower B via an air duct B. Specifically, the blower hood B on the upper side plate is connected to the air outlet of the blower B, and the blower hood B on the lower side plate is connected to the air inlet of the blower B. Alternatively, the air inlets and outlets connected to the blower hoods on the upper and lower side plates can be reversed. Then, when the blower B is running, the drying air can circulate between the blower B and the guide channel. In addition, it should be noted that during the specific implementation process, the drying air will carry away a large amount of moisture from the feed particles when passing through the guide channel. In order to ensure that the dryness of the feed can be maintained continuously during the circulating drying process, a dryer 46 is also installed between the air outlet of the blower B and the air guide pipe B.

[0031] Additionally, it's important to note that the guide channel is relatively narrow to ensure effective utilization of the drying air. To ensure smooth passage of feed pellets within the guide channel, a set of conveyor rollers 47 is installed on both the upper and lower side plates. This set consists of two transfer rollers and a drive motor that rotates the conveyor rollers. Furthermore, a mesh belt 48 is wound around the conveyor rollers, entering the inner surface of the guide channel from both ends of the upper and lower side plates. When the drive motor rotates, the rotating drive rollers cause the mesh belt to move against the inner wall of the guide channel, thereby moving the feed pellets located between the guide channels towards the discharge end of the guide channel. During this process, the drying air blown by fan B passes over the surface of the feed pellets moving in the middle of the guide channel, effectively removing excess moisture from the feed pellets. It's also important to note that this forced-air drying method can, to some extent, rapidly cool the feed pellets, further reducing their temperature after drying and preventing mold growth under high temperature and humidity conditions. It's also important to understand that in this solution...

[0032] Working Principle: After the feed is evenly mixed in the storage tank, it is extruded through the extrusion mechanism under high pressure. The extruded feed is cut into granules by the cutting component and falls into the receiving hopper below. It's important to note that as the feed enters the extrusion mechanism, the air duct A in the cooling system rapidly cools the feed passing through the extrusion pipe. Simultaneously, the cold air blown out by the blower hood A also cools the feed in the extrusion pipe, allowing the feed temperature to quickly drop to room temperature. This eliminates the need for a long cooling channel for airflow cooling, significantly saving space occupied by traditional cooling equipment. Furthermore, this solution also utilizes external blower hood A and baffles to provide external cooling for the extrusion pipe, ensuring that the internal and external temperatures of the material entering the extrusion pipe remain consistent, and guaranteeing that the internal and external temperatures of the extruded feed granules are similar.

[0033] It should also be noted that this solution achieves forced airflow drying of the feed pellets passing through the guide channel by setting up a narrow passage and using air blowers B and fans B on both sides of the guide channel. In this narrow environment, the loss and waste of drying air is effectively reduced, and the feed pellets can be cooled down simultaneously with drying. This maximizes the utilization of drying air.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling and drying device for broiler pellet feed, characterized in that: include Storage bin (1); The extrusion mechanism (2) has multiple sets, including an extrusion tube (21) and a cutting assembly (22). The extrusion tube (21) is connected to the bottom of the storage tank (1), and the cutting assembly (22) is connected to the storage tank (1) to cut the feed extruded from the extrusion tube (21). A cooling mechanism (3) is provided in the extrusion pipe (21) to cool the feed passing through the extrusion pipe (21); The air-drying mechanism (4) is set at the discharge end of the extrusion pipe (21) to collect the extruded feed pellets and to dry the collected feed pellets by blowing air.

2. The broiler pellet cooling and drying equipment as described in claim 1, characterized in that: The cooling mechanism (3) includes a fan A (31), and a guide pipe A (32) is connected to the air outlet of the fan A (31). The guide pipe A (32) extends into the extrusion pipe (21) in a U-shape, and the air outlet of the guide pipe A (32) extends out of the extrusion pipe (21).

3. The broiler pellet feed cooling and drying equipment as described in claim 2, characterized in that: The blower A (31) is also connected to a blower hood A (33) at its air outlet, and the blower hood A (33) is positioned facing the outer surface of the extrusion pipe (21).

4. The broiler pellet feed cooling and drying equipment as described in claim 3, characterized in that: A baffle plate (34) is also provided on the side of the extrusion tube (21) facing away from the blower hood A (33). The baffle plate (34) is coaxially arranged with the extrusion tube (21) and the curvature is between 160 and 180°.

5. The broiler pellet cooling and drying equipment as described in claim 4, characterized in that: The wind deflector (34) is provided with ventilation holes (341) evenly distributed.

6. The broiler pellet cooling and drying equipment as described in claim 5, characterized in that: The air drying mechanism (4) includes a receiving hopper (41) and a blower B (42). The lower end of the receiving hopper (41) is connected to a guide channel (43). The upper and lower side plates (431) of the guide channel (43) are respectively provided with air grooves (432). The air grooves (432) are covered with a blower hood B (44). The blower hood B (44) is connected with an air guide pipe B (45). The air guide pipe B (45) is connected to the air inlet and outlet of the blower B (42). A dryer (46) is also provided between the air outlet of the blower B (42) and the air guide pipe B (45). A conveyor roller group (47) is also provided on the guide channel (43). The mesh belt (48) passes through the upper and lower side plates (431) of the guide channel (43) and is wound around the conveyor roller group (47).

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