Closed feeding and conveying equipment for veterinary powder

Abstract

The utility model relates to veterinary powder closed feeding and conveying equipment which comprises a closed box, a flowing cavity is formed in the closed box, a conveyor is arranged in the flowing cavity, the conveyor is provided with a U-shaped conveying channel used for conveying raw materials, a cleaning mechanism is arranged in the flowing cavity, and the cleaning mechanism is used for cleaning the raw materials. A drying mechanism is arranged in the flowing chamber; the cleaning mechanism comprises a supply part and a spraying part, the supply part is arranged on the closed box and used for supplying clean water to the spraying part, the drying mechanism comprises a hot air conveying end and an air supply pipeline, external pollution can be effectively prevented through the design of the closed box, and the purity of raw materials in the conveying process is ensured. Meanwhile, through the combined action of the cleaning mechanism and the drying mechanism, residues and moisture in the equipment are thoroughly removed, cross contamination and raw material caking are avoided, and the sanitary quality and stability of products are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of powder and bulk drug production, and particularly to a closed feeding and conveying device for veterinary powder and bulk drugs. Background Art

[0002] Powder and bulk drugs play a crucial role in the veterinary drug production and animal feed industries. Such preparations are mainly in the form of powders or granules after being uniformly mixed with one or more drugs, minerals, vitamins, trace elements or other nutritional additives and suitable excipients, facilitating animals to ingest them through the oral route.

[0003] In the veterinary drug production and animal feed processing industries, the transportation and handling of powder and bulk drugs are crucial links. Existing powder and bulk drug feeding and conveying devices are vulnerable to external contamination during transportation. Especially in a humid environment, the raw materials are prone to absorb moisture and agglomerate, affecting product quality. At the same time, it is difficult to effectively clean the inside of the device, resulting in the accumulation of residues and increasing the risk of cross - contamination. In addition, the lack of effective drying measures also limits the continuous operation ability and production efficiency of the device.

[0004] In view of the above problems, a closed feeding and conveying device for veterinary powder and bulk drugs is now designed. Summary of the Utility Model

[0005] The embodiments of the present application provide a closed feeding and conveying device for veterinary powder and bulk drugs to solve the problems in the related art that existing powder and bulk drug feeding and conveying devices are vulnerable to external contamination during transportation, it is difficult to effectively clean the inside of the device, resulting in the accumulation of residues and increasing the risk of cross - contamination.

[0006] In a first aspect, a closed feeding and conveying device for veterinary powder and bulk drugs is provided, including:

[0007] A closed box, the inside of the closed box has a flowing chamber, a conveyor is arranged inside the flowing chamber, the conveyor has a U - shaped transmission channel for raw material transportation, a cleaning mechanism is arranged inside the flowing chamber, and a drying mechanism is arranged inside the flowing chamber;

[0008] The cleaning mechanism includes a supply part and a spraying part. The supply part is arranged on the closed box and is used to supply clean water to the spraying part. The spraying part is arranged at the upper part of the flowing chamber and is used to spray the raw materials on the conveyor;

[0009] The drying mechanism includes a hot - air delivery end and a blowing pipeline. The hot - air delivery end is used to supply hot air flow to the blowing pipeline, and the blowing pipeline is arranged inside the flowing chamber to dry the raw materials.

[0010] In some embodiments, the conveyor includes two driving wheels that are relatively rotatably arranged inside the flow chamber, several auxiliary rollers are rotatably arranged inside the flow chamber, a conveyor belt is drivingly connected between the outside of the driving wheels and the auxiliary rollers, and several drain holes are provided on the conveyor belt.

[0011] In some embodiments, the auxiliary roller includes a rotating shaft rotatably arranged inside the flow chamber, guiding discs are arranged at both ends of the rotating shaft, and a U-shaped transmission channel is formed by enclosing between the guiding discs and the conveyor belt.

[0012] In some embodiments, the supply unit includes a water tank and a pump body. The water tank is arranged on the closed box. The water inlet of the pump body is communicated with the external water supply pipeline system, and the water outlet of the pump body is communicated with the water tank.

[0013] In some embodiments, the spraying unit includes several supply pipes and several spray heads. The several supply pipes are arranged above the flow chamber along the length of the closed box. The several spray heads are arranged at the bottom of the corresponding supply pipes. The supply pipes are U-shaped and are communicated with the water tank.

[0014] In some embodiments, the hot air conveying end includes a fan and a heater that are sequentially arranged on the closed box. A filter is arranged at the air inlet of the fan. The air outlet of the fan is communicated with the heater, and the heater is communicated with the air supply pipeline.

[0015] In some embodiments, the air supply pipeline includes a main pipeline arranged inside the flow chamber. Two branch pipes are oppositely arranged on the main pipeline. Several air supply pipes are arranged at the bottom of the branch pipes, and nozzles are arranged at the bottom ends of the air supply pipes;

[0016] The main pipeline is communicated with the heater.

[0017] In some embodiments, a sewage recovery mechanism is further included. The sewage recovery mechanism includes a partition plate arranged inside the flow chamber. The partition plate is located between the cleaning mechanism and the drying mechanism and is used to divide the flow chamber into a cleaning chamber and a drying chamber;

[0018] Two sewage recovery chambers are arranged at the bottom of the closed box. The two sewage recovery chambers are respectively communicated with the cleaning chamber and the drying chamber. A sludge pump is arranged on the sewage recovery chamber at the bottom of the cleaning chamber, and a drain pipe is arranged on the other sewage recovery chamber.

[0019] The embodiment of the present application provides a closed feeding and conveying device for veterinary powder and powder. Through the design of the closed box, external pollution is effectively prevented, and the purity of the raw materials during the conveying process is ensured. At the same time, through the combined action of the cleaning mechanism and the drying mechanism, the residues and moisture inside the equipment are completely removed, cross-contamination and raw material caking are avoided, and the hygienic quality and stability of the product are significantly improved.

[0020] This device realizes the automated cleaning and drying processes, reduces manual intervention and downtime, and improves the continuous operation ability and production efficiency of the production line. At the same time, the rapid completion of cleaning and drying also shortens the production cycle and reduces the production cost.

[0021] In addition, the cleaning and drying processes of this device are not limited to cleaning the device itself, but have wide applicability and can be applied to the cleaning and drying of various powder and bulk raw materials. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Three-dimensional structure schematic provided for the embodiment of the present application Figure 1 ;

[0024] Figure 2 Three-dimensional structure schematic provided for the embodiment of the present application Figure 2 ;

[0025] Figure 3 Front elevation sectional view provided for the embodiment of the present application;

[0026] Figure 4 Schematic diagram of the connection structure of the conveyor belt and the auxiliary roller provided for the embodiment of the present application;

[0027] Figure 5 Provided for the embodiment of the present application Figure 3 Enlarged view at position A in;

[0028] Figure 6 Provided for the embodiment of the present application Figure 3 Enlarged view at position B in.

[0029] In the figure: 1, closed box; 2, flow chamber; 3, conveyor; 31, driving wheel; 32, auxiliary roller; 321, rotating shaft; 322, guiding plate; 33, conveyor belt; 4, cleaning mechanism; 41, supply part; 411, water tank; 412, pump body; 42, spraying part; 421, supply pipe; 422, nozzle; 5, drying mechanism; 51, hot air conveying end; 511, fan; 512, heater; 513, filter; 52, air supply duct; 521, main duct; 522, branch pipe; 523, air supply pipe; 6, U-shaped transmission channel; 7, sewage recovery mechanism; 71, partition; 72, sewage recovery chamber; 73, sludge pump; 74, drain pipe. Detailed Embodiments

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0031] The embodiments of this application provide a closed feeding and conveying device for veterinary powder and bulk powder, which can solve the problems in the related art that the existing powder and bulk powder feeding and conveying devices are vulnerable to external contamination during the conveying process, and it is difficult to effectively clean the inside of the device, resulting in the accumulation of residues and increasing the risk of cross-contamination.

[0032] Please refer to Figures 1 - 3 , a closed feeding and conveying device for veterinary powder and bulk powder includes; a closed box 1, the inside of the closed box 1 has a flowing chamber 2, a conveyor 3 is arranged inside the flowing chamber 2, the conveyor 3 has a U-shaped conveying channel 6 for raw material conveying, a cleaning mechanism 4 is arranged inside the flowing chamber 2, and a drying mechanism 5 is arranged inside the flowing chamber 2;

[0033] The cleaning mechanism 4 includes a supply part 41 and a spraying part 42. The supply part 41 is arranged on the closed box 1 and is used to supply clean water to the spraying part 42. The spraying part 42 is arranged at the upper part of the flowing chamber 2 and is used to spray the raw materials on the conveyor 3.

[0034] The drying mechanism 5 includes a hot air conveying end 51 and a air supply pipe 52. The hot air conveying end 51 is used to supply hot air flow to the air supply pipe 52. The air supply pipe 52 is arranged inside the flowing chamber 2 and is used to dry the raw materials.

[0035] Closed feeding and conveying: The device realizes the closure of the entire feeding and conveying process through the closed box 1, effectively isolating the contamination of raw materials by adverse factors such as external dust and moisture. The raw materials are stably conveyed in the flowing chamber 2 through the U-shaped conveying channel 6 of the conveyor 3.

[0036] Cleaning process: When the device needs to be cleaned, the supply part 41 starts to work, introducing clean water from the external water supply pipe system into the spraying part 42. The spraying part 42 sprays water on the raw materials and the surface of the conveyor belt 33 on the conveyor 3, realizing a comprehensive cleaning of the inside of the device.

[0037] Drying process: After cleaning is completed, the hot air delivery end 51 is started, and the hot air delivery end 51 delivers the hot air flow into the hot air delivery end 51, and the hot air flow is evenly distributed in the entire chamber. The hot air flow ejected through the nozzle directly acts on the raw material and the surface of the conveyor 3 to achieve rapid drying.

[0038] The design of the closed box 1 effectively prevents external contamination and ensures the purity of the raw materials during the transmission process. At the same time, the combined action of the cleaning mechanism 4 and the drying mechanism 5 completely removes the residues and moisture inside the equipment, avoids cross contamination and raw material agglomeration, and significantly improves the sanitary quality and stability of the product.

[0039] The equipment realizes the automatic cleaning and drying process, reduces manual intervention and downtime, and improves the continuous operation capacity and production efficiency of the production line. At the same time, the rapid completion of cleaning and drying also shortens the production cycle and reduces production costs.

[0040] In addition, the cleaning and drying process of the equipment is not limited to the cleaning equipment itself, but has wide applicability and can be applied to the cleaning and drying of a variety of powdered raw materials.

[0041] It should be noted that, in this embodiment, a feed port is disposed at the upper portion of one end of the closed box 1 , and a discharge port is disposed at the bottom of the other end of the closed box 1 .

[0042] Specifically, the conveyor 3 in this embodiment includes two driving wheels 31 that are relatively rotatably arranged inside the flow chamber 2, and a plurality of auxiliary rollers 32 are rotatably arranged inside the flow chamber 2. A conveyor belt 33 is transmission-connected between the driving wheels 31 and the outside of the auxiliary rollers 32, and the conveyor belt 33 is provided with a plurality of drainage holes.

[0043] The closed box 1 is provided with a driving member, which is connected to any driving wheel 31 and is used to drive the driving wheel 31 to rotate. The driving member includes a driving motor and a reducer.

[0044] The main function of the conveyor 3 is to achieve stable transmission of the raw materials in the closed box 1 .

[0045] The driving member provided on the closed box 1 includes a driving motor and a reducer connected to any driving wheel 31. The driving wheel 31 is driven to rotate at a predetermined speed through the rotation of the driving motor and the deceleration and torque-increasing effect of the reducer.

[0046] The conveyor belt 33 is wound around the two driving wheels 31 and the outside of the auxiliary rollers 32 to form a closed loop. When the driving wheels 31 rotate, the conveyor belt 33 is driven to move in a predetermined direction by friction, thereby transmitting the raw materials from the input end to the output end.

[0047] Further, such as Figure 4As shown, in this embodiment, the auxiliary roller 32 includes a rotating shaft 321 rotatably arranged inside the flow chamber 2. Guide plates 322 are provided at both ends of the rotating shaft 321. The guide plates 322 are frustum-shaped. A U-shaped transmission channel 6 is formed by enclosing between the guide plates 322 and the conveyor belt 33.

[0048] The rotating shaft 321 is the core component of the auxiliary roller 32. It is rotatably arranged inside the flow chamber 2, providing support for the transmission of the conveyor belt 33.

[0049] The guide plates 322 are designed in a frustum shape. This shape helps to guide the conveyor belt 33 to maintain a stable path during transmission. A U-shaped transmission channel 6 is formed by enclosing between the guide plates 322 and the conveyor belt 33. This channel provides a more stable and efficient transmission environment for the raw materials on the conveyor belt 33.

[0050] When the conveyor belt 33 runs driven by the driving wheel 31, the rotating shaft 321 and the guide plates 322 of the auxiliary roller 32 rotate accordingly. The frustum shape design of the guide plates 322 enables the conveyor belt 33 to play a certain guiding role when passing through, thus maintaining its stability during transmission.

[0051] The formation of the U-shaped transmission channel 6 further enhances the stability of transmission. This channel restricts the lateral movement range of the conveyor belt 33, reducing problems such as unsmooth transmission or raw material spillage caused by deviation.

[0052] Specifically, in this embodiment, the supply unit 41 includes a water tank 411 and a pump body 412. The water tank 411 is arranged on the closed box 1. The water inlet of the pump body 412 is communicated with the external water supply pipeline system, and the water outlet of the pump body 412 is communicated with the water tank 411.

[0053] In this embodiment, as an important part of the cleaning mechanism 4, the supply unit 41 is designed to ensure the stable supply of clean water required during the cleaning process. Specifically, the supply unit 41 includes two key components, the water tank 411 and the pump body 412, which work together to achieve the circulation and supply of cleaning water.

[0054] The water tank 411 is arranged on the closed box 1, which is convenient for connection and integration with other parts of the cleaning mechanism 4 such as the spraying unit 42. Its main function is to store the clean water required during the cleaning process, ensuring a stable water source supply during the cleaning process.

[0055] The capacity of the water tank 411 should be reasonably designed according to the actual production demand and cleaning frequency to ensure that the cleaning effect will not be affected due to insufficient water volume during continuous cleaning.

[0056] The water inlet of the pump body 412 is connected to the external water supply pipeline system, enabling the external water source to smoothly enter the pump body 412. The water outlet is connected to the water tank 411. The pump body 412 pumps the external water source into the water tank 411 through the pressure generated by its operation, realizing the circulating supply of cleaning water.

[0057] When cleaning is required, the pump body 412 starts and begins to work. It uses its own suction to draw the clear water in the external water supply pipeline system into the pump body, and then pressurizes and injects the clear water into the water tank 411 through the water outlet. As the water level in the water tank 411 rises, the cleaning water is then sprayed out by the nozzles 422 of the spraying part 42 to spray and clean the raw materials on the conveyor 3.

[0058] As Figure 3 and Figure 5 shown, in this embodiment, the spraying part 42 includes a plurality of supply pipes 421 and a plurality of nozzles 422. The plurality of supply pipes 421 are arranged along the length of the closed box 1 above the flow chamber 2, and the plurality of nozzles 422 are arranged at the bottom of the corresponding supply pipes 421. The supply pipes 421 are U-shaped and the supply pipes 421 are connected to the water tank 411.

[0059] The supply pipes 421 are U-shaped, aiming to cover the entire width of the conveyor 3 to ensure that the cleaning water can fully cover the raw materials. At the same time, this U-shaped design also helps to reduce the splashing and waste of the cleaning water during the spraying process.

[0060] A plurality of nozzles 422 are arranged at the bottom of each supply pipe 421. These nozzles 422 are responsible for spraying the cleaning water in the supply pipes 421 at an appropriate pressure and angle, directly acting on the conveyor 3.

[0061] When cleaning is required, the pump body 412 pressurizes and injects the clear water in the external water supply pipeline system into the water tank 411. As the water level in the water tank 411 rises, the cleaning water enters the supply pipes 421 of the spraying part 42 through a specific pipeline system. The cleaning water flows in the supply pipes 421 and is sprayed out in the form of mist or fine stream when it reaches the nozzles 422. These sprayed cleaning waters directly act on the conveyor 3 to clean the inside of the closed box.

[0062] In addition, it can also be sprayed on the surface of the raw materials on the conveyor 3 to wash away impurities such as dirt and residues on the raw materials.

[0063] In this embodiment, the hot air conveying end 51 includes a fan 511 and a heater 512 arranged in sequence on the closed box 1. A filter 513 is arranged at the air inlet of the fan 511. The air outlet of the fan 511 is connected to the heater 512, and the heater 512 is connected to the air supply pipeline 52.

[0064] When the raw materials need to be dried, the fan 511 starts and begins to rotate, generating an air flow. The air flow enters the interior of the fan after being filtered by the filter 513, and then is transported to the heater 512 for heating. The heater 512 heats the air flow according to the set temperature to make it reach the appropriate drying temperature. The heated hot air is transported into the flow chamber 2 through the air supply duct 52 to dry the conveying equipment inside the closed box 1.

[0065] The hot air is evenly distributed inside the flow chamber 2 and blows inside the flow chamber 2, and the moisture is evaporated through heat conduction and convection, thus achieving the drying effect. The dried hot air is discharged outside the equipment through the discharge port of the flow chamber 2.

[0066] In addition, the raw materials on the conveyor 3 can also be dried.

[0067] As Figure 3 and Figure 6 shown, in this embodiment, the air supply duct 52 includes a main duct 521 arranged inside the flow chamber 2. Two branch pipes 522 are oppositely arranged on the main duct 521. A number of air supply pipes 523 are arranged at the bottom of the branch pipe 522, and nozzles are arranged at the bottom ends of the air supply pipes 523; the main duct 521 is communicated with the heater 512.

[0068] When the heater 512 heats the air to the appropriate temperature, the hot air enters the flow chamber 2 through the main duct 521. Inside the main duct 521, the hot air is divided into two paths and is respectively transported to both sides of the flow chamber 2 through the two branch pipes 522. Subsequently, the hot air is refined through a number of air supply pipes 523 and is transported to each corner of the flow chamber 2.

[0069] In one embodiment, it further includes a sewage recovery mechanism 7. The sewage recovery mechanism 7 includes a partition 71 arranged inside the flow chamber 2. The partition 71 is located between the cleaning mechanism 4 and the drying mechanism 5 and is used to divide the flow chamber 2 into a cleaning chamber and a drying chamber; two sewage recovery chambers 72 are arranged at the bottom of the closed box 1, and the two sewage recovery chambers 72 are respectively communicated with the cleaning chamber and the drying chamber. A sludge pump 73 is arranged on the sewage recovery chamber 72 at the bottom of the cleaning chamber, and a drain pipe 74 is arranged on the other sewage recovery chamber 72.

[0070] During the cleaning process, the cleaning water sprayed by the cleaning mechanism 4 acts on the dirt on the surface of the raw materials to form sewage. This sewage flows into the sewage recovery chamber 72 at the bottom of the cleaning chamber through the drainage system of the flow chamber 2. When the sewage accumulates to a certain extent, the sludge pump 73 starts to pump out and treat the sewage containing larger particle impurities.

[0071] During the drying process, the hot air generated by the drying mechanism 5 evaporates the moisture on the surface of the raw materials, forming water vapor. After the water vapor condenses into clear water in the flow chamber 2, it flows into the sewage recovery chamber 72 located at the bottom of the drying chamber through the drainage system. When the clear water accumulates to a certain extent, it is discharged outside the device through the drain pipe 74 for further treatment or recycling.

[0072] In another embodiment, in order to better clean the inside of the closed box 1, the spraying part 42 and the air supply duct 52 in this implementation scheme are distributed along the length direction of the flow chamber 2, and the air supply duct 52 is located outside the spraying part 42, so that spraying and drying cover the entire space.

[0073] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0074] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0075] The above description is only a specific embodiment of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A closed feeding and conveying device for veterinary powder, characterized in that: include: A closed box (1), wherein the closed box (1) has a flow chamber (2) inside, a conveyor (3) is arranged inside the flow chamber (2), the conveyor (3) has a U-shaped transmission channel (6) for conveying raw materials, a cleaning mechanism (4) is arranged inside the flow chamber (2), and a drying mechanism (5) is arranged inside the flow chamber (2); The cleaning mechanism (4) comprises a supply part (41) and a spray part (42), wherein the supply part (41) is arranged on the closed box (1) and is used to supply clean water to the spray part (42), and the spray part (42) is arranged on the upper part of the flow chamber (2) and is used to spray the raw materials on the conveyor (3); The drying mechanism (5) comprises a hot air delivery end (51) and an air supply duct (52); the hot air delivery end (51) is used to supply a hot air flow to the air supply duct (52); and the air supply duct (52) is arranged inside the flow chamber (2) and is used to dry the raw materials.

2. A closed feeding and conveying device for veterinary powders as claimed in claim 1, characterized in that: The conveyor (3) comprises two driving wheels (31) which are arranged inside the flow chamber (2) for relative rotation, a plurality of auxiliary rollers (32) are rotatably arranged inside the flow chamber (2), a conveyor belt (33) is transmission-connected between the driving wheels (31) and the outside of the auxiliary rollers (32), and the conveyor belt (33) is provided with a plurality of drainage holes.

3. A closed feeding and conveying device for veterinary powders as claimed in claim 2, characterized in that: The auxiliary roller (32) comprises a rotating shaft (321) rotatably arranged inside the flow chamber (2), guide plates (322) are arranged at both ends of the rotating shaft (321), and a U-shaped transmission channel (6) is formed between the guide plates (322) and the conveyor belt (33).

4. A closed feeding and conveying device for veterinary powders as claimed in claim 1, characterized in that: The supply part (41) comprises a water tank (411) and a pump body (412); the water tank (411) is arranged on the closed box (1); the water inlet of the pump body (412) is connected to an external water supply pipeline system; and the water outlet of the pump body (412) is connected to the water tank (411).

5. A closed feeding and conveying device for veterinary powders as claimed in claim 4, characterized in that: The spraying part (42) comprises a plurality of supply pipes (421) and a plurality of spray heads (422); the plurality of supply pipes (421) are arranged above the flow chamber (2) along the length of the closed box (1); the plurality of spray heads (422) are arranged at the bottom of the corresponding supply pipes (421); the supply pipes (421) are U-shaped, and the supply pipes (421) are connected to the water tank (411).

6. The closed feeding and conveying device for veterinary powders and granules according to claim 1, characterized in that: The hot air delivery end (51) comprises a fan (511) and a heater (512) which are arranged in sequence on the closed box (1); the air inlet of the fan (511) is provided with a filter (513); the air outlet of the fan (511) is connected to the heater (512); and the heater (512) is connected to the air supply duct (52).

7. A closed feeding and conveying device for veterinary powders as claimed in claim 6, characterized in that: The air supply pipe (52) comprises a main pipe (521) arranged inside the flow chamber (2), two branch pipes (522) are arranged on the main pipe (521) in a relative manner, a plurality of air supply pipes (523) are arranged at the bottom of the branch pipes (522), and a nozzle is arranged at the bottom end of the air supply pipe (523); The main pipeline (521) is in communication with the heater (512).

8. The closed feeding and conveying equipment for veterinary powders and granules according to claim 1, characterized in that: It also includes a sewage recovery mechanism (7), the sewage recovery mechanism (7) including a partition (71) arranged inside the flow chamber (2), the partition (71) being located between the cleaning mechanism (4) and the drying mechanism (5) and used to separate the flow chamber (2) into a cleaning chamber and a drying chamber; The bottom of the closed box (1) is provided with two sewage recovery chambers (72), which are respectively connected to the cleaning chamber and the drying chamber. A sludge pump (73) is provided on the sewage recovery chamber (72) at the bottom of the cleaning chamber, and a drainage pipe (74) is provided on the other sewage recovery chamber (72).

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