A veterinary drug granule drying and sieving device and its integrated process

Abstract

This invention relates to the field of veterinary drug granule processing technology, specifically to a veterinary drug granule drying and screening device and its integrated process. The veterinary drug granule drying and screening device includes an L-shaped plate with two horizontal plates mounted on its outer side. This invention uses a drive assembly to rotate a rotating tube and spiral blades, causing the granules to tumble and be conveyed within the drying and filtering chamber, simultaneously completing the initial filtration. Simultaneously, a blower heating assembly blows hot air into the rotating tube, which is then evenly blown onto the granules through air holes, achieving integrated filtration and drying operations, significantly improving production efficiency, avoiding cross-contamination and material loss, and achieving a high degree of automation. A secondary drying and filtering chamber allows for secondary filtration, and the hot air can be reused within the chamber through a discharge pipe, enhancing the drying effect. Furthermore, a secondary drying assembly further dries the filtered granules, thus comprehensively ensuring the drying quality.

Description

Technical Field

[0001] This invention relates to the field of veterinary drug granule processing technology, specifically to a veterinary drug granule drying and screening device and its integrated process. Background Technology

[0002] Veterinary drug granules are one of the most widely used dosage forms in veterinary clinical practice, possessing advantages such as good flowability, high stability, accurate dosage, and ease of packaging and transportation. In the preparation of veterinary drug granules, wet granulation is a commonly used method, and its subsequent processing mainly includes two key steps: drying and sieving of the wet granules. The drying process aims to remove moisture from the wet granules, prevent mold growth, and ensure their physical stability; the sieving process is used to separate any clumps, excessively large particles, and fine powder that may exist after drying, in order to obtain finished granules with uniform particle size that meet quality requirements.

[0003] Currently, in the veterinary drug production field, the drying and sieving of granules are mostly carried out using separate, step-by-step equipment. For example, wet granules are first dried using a fluidized bed dryer or oven, and then the material is transferred to a vibrating screen or rotary vibrating screen for sieving after the drying process is completed. This traditional step-by-step processing mode has the following shortcomings in practical applications: 1. Low production efficiency: Drying and screening are carried out sequentially in two separate devices, and materials need to be transferred between different devices, which not only increases the complexity of the production process, but also prolongs the production cycle, making it difficult to meet the needs of large-scale continuous production.

[0004] 2. Easily leads to cross-contamination and material loss: During the transfer process, materials are easily contaminated by the external environment, and it is also difficult to completely avoid spillage and dust, which reduces the yield of finished products and increases the difficulty of clean production.

[0005] 3. Low level of automation: The connection between processes often relies on manual operation or simple conveying devices, making it difficult to achieve full-process automated closed-loop control, and the stability and traceability of process parameters are poor.

[0006] Therefore, those skilled in the art provide a veterinary drug granule drying and sieving device and its integrated process to solve the problems mentioned in the background art. Summary of the Invention

[0007] The purpose of this invention is to provide a veterinary drug granule drying and screening device and its integrated process to solve the problems of low production efficiency, easy cross-contamination and material loss, and low degree of automation mentioned in the background art.

[0008] To achieve the above objectives, the present invention aims to provide a veterinary drug granule drying and screening device, comprising an L-shaped plate, two horizontal plates installed on the outer side of the L-shaped plate, and a drying filter box one and a drying filter box two respectively fixedly installed on the ends of the two horizontal plates away from the L-shaped plate. The drying filter box one is located above the drying filter box two, and a feed pipe is installed at one end of the bottom of the drying filter box one, the bottom of the feed pipe extending into the interior of the drying filter box two. Both the drying filter box 1 and the drying filter box 2 are rotatably connected to rotating tubes. One end of the rotating tube inside the drying filter box 1 extends to the outside of the drying filter box 1, and both ends of the rotating tube inside the drying filter box 2 extend to the outside of the drying filter box 2. The two rotating tubes are connected by belt drive. A spiral blade is fixedly connected to the outside of the rotating tube and inside the drying filter box 1 or the drying filter box 2. The two spiral blades rotate in opposite directions. Air blowing holes are equally spaced on the outside of the rotating tube and inside the drying filter box 1 or the drying filter box 2. A filter screen is installed inside each air blowing hole. A drive assembly is provided on one side of the drying and filtering box, and the drive assembly is used to drive the rotating tube to rotate. A blower heating assembly is provided on the outer side of the L-shaped plate. The blower heating assembly is connected to the interior of the rotating tube and is used to deliver hot air into the interior of the rotating tube. Both the first and second drying filter boxes have filter holes at their bottoms. Both the first and second drying filter boxes have secondary drying components at their bottoms, located outside the filter holes. These secondary drying components are used to perform secondary drying on the filtered veterinary drug granules.

[0009] As a further improvement to this technical solution, the drive assembly includes a motor, a drive gear, and a driven gear. The motor is fixedly connected to one side of the drying filter box, the drive gear is fixedly connected to the output shaft of the motor, and the driven gear is fixedly connected to the outside of the rotating tube and located outside the drying filter box. The drive gear and the driven gear are meshed together.

[0010] As a further improvement to this technical solution, the blower heating assembly includes a blower, a heating box, a heating wire, a connecting pipe, and a rotary joint. The heating box is fixedly connected to the outside of the L-shaped plate, the heating wire is installed inside the heating box, the blower is fixedly connected to the bottom of the L-shaped plate, and the output end of the blower is connected to the inside of the heating box through a pipe. The connecting pipe is fixedly connected to the top of the heating box, and the rotary joint is fixedly connected to the end of the rotary pipe located outside either the first or second drying filter box. The end of the connecting pipe away from the heating box is fixedly connected to the rotary joint and is internally connected.

[0011] As a further improvement to this technical solution, the secondary drying assembly includes a drying chamber, a rotating rod, and two spiral blades. The drying chamber is fixedly connected to the bottom of the first and second drying filter chambers and located outside the filter holes. The rotating rod is rotatably connected inside the drying chamber, with one end of each rotating rod extending to the outside of the drying chamber. The two spiral blades are fixedly connected to the outside of the rotating rod and located inside the drying chamber. The rotating rod and the corresponding rotating tube are connected by belt drive. The two spiral blades have opposite rotation directions. The spiral blade inside the first drying chamber at the bottom of the first drying filter chamber has the same rotation direction as the rotating tube inside the first drying filter chamber. The spiral blade inside the second drying chamber at the bottom of the second drying filter chamber has the same rotation direction as the rotating tube inside the second drying filter chamber.

[0012] As a further improvement to this technical solution, a control panel is fixedly installed on one side of the L-shaped plate, and the motor, blower and heating wire are all electrically connected to the control panel.

[0013] As a further improvement to this technical solution, fixing holes are provided at the four corners of the bottom of the L-shaped plate.

[0014] As a further improvement to this technical solution, a door is rotatably connected to the outside of the heating box, and the door is used to maintain and replace the heating wire inside the heating box.

[0015] As a further improvement to this technical solution, a feeding funnel is fixedly connected to the top end of the drying and filtering box one that is away from the feeding pipe. The feeding funnel is connected to the interior of the drying and filtering box one, and a cover plate is provided on the top of the feeding funnel.

[0016] As a further improvement to this technical solution, a discharge pipe is fixedly connected to the bottom end of the drying filter box two away from the discharge pipe. A collection box one is placed on the top of the L-shaped plate and below the discharge pipe. A collection pipe one is fixedly installed at the bottom end of the drying box at the bottom of the drying filter box one, near the discharge pipe. A collection pipe two is fixedly installed at the bottom end of the drying box at the bottom of the drying box two, away from the discharge pipe. The bottoms of the collection pipe one and the collection pipe two converge. A collection box two is placed on the top of the L-shaped plate and below the bottoms of the collection pipe one and the collection pipe two.

[0017] This invention also provides an integrated process for a veterinary drug granule drying and screening device. The integrated process is implemented based on the aforementioned veterinary drug granule drying and screening device and includes the following steps: S1. Add the wet veterinary drug granules to be dried into the interior of the drying and filtering chamber one through the feeding funnel; S2. Start the motor via the control panel. The motor drives the drive gear to rotate, which in turn drives the driven gear meshing with it to rotate. This, in turn, drives the rotating tube and spiral blades inside the drying filter box one to rotate, thereby tumbling and conveying the veterinary granules inside the drying filter box one. At the same time, the filter holes are used to filter the veterinary granules during the tumbling and conveying process. In addition, the belt drive drives the rotating tube and spiral blades inside the drying filter box two to rotate together, so that the veterinary granules that have not passed through the filter holes can also be tumbling, conveying and filtering after entering the drying filter box two through the feed pipe. S3. Simultaneously start the blower and heating wire. The air generated by the blower is delivered to the interior of the heating box through the pipeline, and after being heated by the heating wire, it is delivered to the interior of the rotating tube through the connecting pipe and the rotary joint. Finally, it is blown evenly onto the veterinary drug granules in the tumbling conveying process through the air blowing holes on the outside of the rotating tube, so as to achieve simultaneous filtration and drying. S4. After being filtered through the filter holes, the veterinary drug granules fall into the interior of the drying chamber. Using the belt, the rotation of the rotating tube drives the rotating rod and the second spiral blade to rotate. The second spiral blade then tumbles and conveys the veterinary drug granules that have entered the drying chamber. At the same time, some of the hot air blown into the drying filter box 1 and the drying filter box 2 enters the interior of the drying chamber through the filter holes, thereby further drying the veterinary drug granules that are tumbled and conveyed inside the drying chamber. S5. After passing the filtration, the veterinary drug granules are dried again in the drying chamber and then enter the interior of the collection box 2 through collection pipe 1 and collection pipe 2 for collection. The veterinary drug granules that fail the filtration are fully dried in the drying and filtration box 2 and then fall into the interior of the collection box 1 through the discharge pipe for collection.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this veterinary drug granule drying and screening device and its integrated process, a drive assembly is set up to drive the rotating tube and spiral blades to rotate together, which can tumble and convey the veterinary drug granules inside the drying and filtering box. At the same time, with the help of the filter holes, the veterinary drug granules can undergo an initial filtration operation inside the drying and filtering box. The blower heating assembly blows air into the rotating tube, and blowers on the outside of the rotating tube evenly heat the veterinary drug granules during the tumbling and conveying process. Thus, the veterinary drug granules can be dried by blowing air during the filtration process. This not only improves production efficiency, but also reduces the risk of cross-contamination and material loss. In addition, no manual operation is required between processes, which greatly improves the automation level of the equipment and is beneficial to practical applications.

[0019] 2. In this veterinary drug granule drying and screening device and its integrated process, by setting a second drying filter box at the bottom of the first drying filter box, the veterinary drug granules after the first filtration can be filtered a second time, thereby further increasing the filtration effect. Furthermore, since the first drying filter box and the second drying filter box are connected by a feed pipe, the hot air entering the first drying filter box will re-enter the second drying filter box. This allows the equipment to perform a forced-air drying operation on the veterinary drug granules while simultaneously performing a second filtration, thus ensuring the effectiveness of the forced-air drying.

[0020] 3. In this veterinary drug granule drying and screening device and its integrated process, by setting secondary drying components at the bottom of drying filter box one and drying filter box two, the veterinary drug granules after filtration can be dried a second time, and hot air can continuously penetrate the entire conveying channel of veterinary drug granules, thereby further increasing the drying effect of the equipment on veterinary drug granules. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0023] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure.

[0024] Figure 4 This is a partial structural diagram of the present invention. Figure 1 .

[0025] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0026] Figure 6 This is a cross-sectional structural diagram of the drying filter box and the drying box of the present invention.

[0027] Figure 7 This is a cross-sectional structural diagram of the drying filter box 2 and the drying box of the present invention.

[0028] Figure 8 This is a schematic diagram of the driving state of the driving component of the present invention.

[0029] In the diagram: 1. L-shaped plate; 2. Horizontal plate; 3. Drying and filtering box one; 4. Drying and filtering box two; 5. Rotating tube; 6. Spiral blade one; 7. Filter hole; 8. Motor; 9. Drive gear; 10. Driven gear; 11. Blower; 12. Heating box; 13. Heating wire; 14. Connecting pipe; 15. Rotary joint; 16. Drying box; 17. Rotating rod; 18. Spiral blade two; 19. Control panel; 20. Fixing hole; 21. Feeding funnel; 22. Cover plate; 23. Discharge pipe; 24. Discharge pipe; 25. Collection box one; 26. Collection pipe one; 27. Collection pipe two; 28. Collection box two; 29. ​​Air blowing hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In one specific embodiment, such as Figure 1-8As shown, a veterinary drug granule drying and screening device includes an L-shaped plate 1. Fixing holes 20 are provided at the four corners of the bottom of the L-shaped plate 1, allowing for better installation and fixation of the entire device. Two horizontal plates 2 are installed on the outer side of the L-shaped plate 1. Drying filter box 3 (first type) and drying filter box 4 (second type) are respectively fixedly installed at the ends of the two horizontal plates 2 away from the L-shaped plate 1. The horizontal plates 2 facilitate better installation of drying filter box 3 and drying filter box 4. Drying filter box 3 (first type) is located above drying filter box 4. This vertical layout fully utilizes vertical space, reduces the horizontal footprint of the equipment, and makes the production line layout more compact. A feed pipe 23 is installed at one end of the bottom of drying filter box 3. The bottom of the feed pipe 23 extends into the interior of drying filter box 4, used to transport granules that have not passed the initial filtration in drying filter box 3 to drying filter box 4 for secondary processing. This achieves automatic material flow, eliminating the need for manual transfer and avoiding the risk of cross-contamination. Both the bottom of drying filter box 3 and drying filter box 4 are equipped with filter holes 7. The diameter of the filter holes 7 is set according to the particle size requirements of the veterinary drug granules to achieve particle screening. A discharge pipe 24 is fixedly connected to the bottom of drying filter box 4 at the end furthest from the feed pipe 23. A collection box 25 is placed on the top of the L-shaped plate 1, below the discharge pipe 24, to collect large-diameter particles or clumps that have not passed through the filter holes 7 after secondary filtration. These materials can be processed separately as defective products after thorough drying. A feeding funnel 21 is fixedly connected to the top of drying filter box 3 at the end furthest from the feed pipe 23. The feeding funnel 21 communicates with the interior of drying filter box 3, facilitating centralized feeding by operators. A cover plate 22 is provided on the top of the feeding funnel 21, which can be closed when no material is being added to prevent external impurities from entering the equipment, ensuring the cleanliness of the material and preventing hot air from escaping.

[0032] Both the drying filter box 3 (first type) and the drying filter box 4 (second type) are rotatably connected to rotating pipes 5. One end of the rotating pipe 5 inside the drying filter box 3 extends to the outside of the drying filter box 3, and both ends of the rotating pipe 5 inside the drying filter box 4 extend to the outside of the drying filter box 4. The two rotating pipes 5 are connected by a belt drive. This linkage design allows only one power source to drive the rotating pipes 5 in the drying filter box 3 and the drying filter box 4 to work simultaneously, which not only reduces the equipment manufacturing cost but also simplifies the control logic and improves the coordination of equipment operation. Spiral blades 6 are fixedly connected to the outside of the rotating tube 5 and inside either the first drying filter box 3 or the second drying filter box 4. The two spiral blades 6 rotate in opposite directions. Specifically, the spiral blades 6 inside the first drying filter box 3 are configured to push the material from the feeding funnel 21 towards the feed pipe 23, while the spiral blades 6 inside the second drying filter box 4 are configured to push the material from the inlet of the feed pipe 23 towards the discharge pipe 24. This design ensures the directional flow of the material within the box, preventing material accumulation or backflow. Air blowing holes 29 are equidistantly opened on the outside of the rotating tube 5 and inside either the first drying filter box 3 or the second drying filter box 4. Each air blowing hole 29 is equipped with a filter screen, which prevents fine particles from entering the rotating tube 5 and causing blockage, ensuring long-term operational reliability.

[0033] A drive assembly is installed on one side of the drying and filtering box 3 to drive the rotating tube 5. The drive assembly includes a motor 8, a drive gear 9, and a driven gear 10. The motor 8 is fixedly connected to one side of the drying and filtering box 3, serving as the power source for the entire equipment. The motor 8 is a variable frequency speed control motor, which can flexibly adjust its speed according to the material characteristics and processing capacity, thereby achieving optimal drying and screening effects. The drive gear 9 is fixedly connected to the output shaft of the motor 8, and the driven gear 10 is fixedly connected to the outside of the rotating tube 5 and located outside the drying and filtering box 3. The drive gear 9 and driven gear 10 mesh together, and the power transmission is smooth and reliable with a precise transmission ratio, ensuring that the rotating tube 5 operates stably at the set speed. Compared to belt or chain drives, this design offers better synchronization and a longer service life.

[0034] The L-shaped plate 1 has a blower heating assembly on its outer side, which communicates with the interior of the rotating tube 5 to supply hot air into the tube 5. The blower heating assembly includes a blower 11, a heating box 12, a heating wire 13, a connecting pipe 14, and a rotary joint 15. The heating box 12 is fixedly connected to the outer side of the L-shaped plate 1, and the heating wire 13 is installed inside the heating box 12. The heating wire 13 is made of stainless steel electric heating tube, which has the advantages of high thermal efficiency, corrosion resistance, and long service life. A door is rotatably connected to the outer side of the heating box 12. The door is used for maintenance and replacement of the heating wire 13 inside the heating box 12. The door facilitates regular maintenance, cleaning, or replacement of the heating wire 13 by operators, ensuring the long-term reliability of the equipment. Blower 11 is fixedly connected to the bottom of L-shaped plate 1. The output end of blower 11 is connected to the interior of heating box 12 through a pipe. Connecting pipe 14 is fixedly connected to the top of heating box 12. Rotary joint 15 is fixedly connected to the end of rotating pipe 5 located outside drying filter box 3 or drying filter box 4. The end of connecting pipe 14 away from heating box 12 is fixedly connected to rotary joint 15 and internally connected. Through the connection of rotary joint 15, the rotating pipe 5 does not affect connecting pipe 14 while rotating, and the rotating pipe 5 can continuously receive hot air from heating box 12 during rotation, realizing a reliable sealed connection between moving and stationary parts and ensuring the continuity of hot air delivery. During operation, the air generated by blower 11 is heated by heating box 12 and enters the interior of rotating pipe 5 through connecting pipe 14 and rotary joint 15. Finally, it is evenly blown from air outlet 29 onto the tumbling and conveying veterinary drug granules, realizing a highly efficient operation mode of simultaneous conveying and drying. Compared with external hot air baking, this internal heating method has less heat loss and higher heat energy utilization.

[0035] A control panel 19 is fixedly installed on one side of the L-shaped plate 1. The motor 8, blower 11, and heating wire 13 are all electrically connected to the control panel 19. The control panel 19 integrates a PLC controller and a touch screen. Operators can set process parameters such as the speed of the motor 8, the heating temperature of the heating wire 13, and the air volume of the blower 11 through the touch screen. The equipment can then operate automatically according to the set parameters, realizing full-process automated control. This not only reduces the labor intensity of operators but also ensures the stability and traceability of process parameters, which is conducive to the continuous improvement of product quality.

[0036] The bottom of both the drying filter box 3 and the drying filter box 4, located outside the filter holes 7, is equipped with a secondary drying assembly. This secondary drying assembly is used to perform a second drying of the filtered veterinary drug granules, ensuring that the moisture content of the final product meets quality standards. Specifically, the secondary drying assembly includes a drying chamber 16, a rotating rod 17, and two spiral blades 18. The drying chamber 16 is fixedly connected to the bottom of both the drying filter box 3 and the drying filter box 4, located outside the filter holes 7, and is used to collect small-diameter qualified granules falling from the filter holes 7. The rotating rod 17 is rotatably connected inside the drying chamber 16, with one end extending to the outside of the drying chamber 16. The two spiral blades 18 are fixedly connected to the outside of the rotating rod 17 and located inside the drying chamber 16. The rotating rod 17 and the corresponding rotating tube 5 are connected via belt drive. This linkage design eliminates the need for an additional power source for the secondary drying assembly, further simplifying the equipment structure and reducing energy consumption. The two spiral blades 18 rotate in opposite directions. The spiral blades 18 inside the drying chamber 16 at the bottom of drying chamber 13 rotate in the same direction as the rotating tube 5 inside drying chamber 13. This allows small-diameter particles falling from the filter holes 7 at the bottom of drying chamber 13 to be conveyed towards the side closer to the feed pipe 23. Similarly, the spiral blades 18 inside the drying chamber 16 at the bottom of drying chamber 4 rotate in the same direction as the rotating tube 5 inside drying chamber 4. This allows small-diameter particles falling from the filter holes 7 at the bottom of drying chamber 4 to be conveyed away from the feed pipe 23, facilitating subsequent collection. It is worth noting that a portion of the hot air blown into drying chambers 13 and 24 enters the interior of drying chamber 16 through the filter holes 7, thus re-drying the qualified particles being conveyed inside drying chamber 16. This achieves cascaded utilization of thermal energy, further improving drying efficiency and energy utilization.

[0037] In this system, a collection pipe 26 is fixedly installed at the bottom of the drying chamber 16, located at the bottom of the drying chamber 16 ...

[0038] In another specific embodiment, an integrated process for a veterinary drug granule drying and sieving device, the integrated process being implemented based on the veterinary drug granule drying and sieving device, includes the following steps: S1. Add the wet veterinary drug granules to be dried into the drying and filtering box 3 through the feeding funnel 21; S2. Start the motor 8 via the control panel 19. The motor 8 drives the drive gear 9 to rotate, which in turn drives the driven gear 10 meshing with it to rotate. This causes the rotating tube 5 and the spiral blade 6 inside the drying filter box 3 to rotate, thereby tumbling and conveying the veterinary granules inside the drying filter box 3. At the same time, the filter holes 7 are used to filter the veterinary granules during the tumbling and conveying process. In addition, the belt drive causes the rotating tube 5 and the spiral blade 6 inside the drying filter box 4 to rotate together, so that the veterinary granules that have not passed through the filter holes 7 can also be tumbling, conveying and filtering after entering the drying filter box 4 through the feed pipe 23. S3. Simultaneously start the blower 11 and the heating wire 13. The air generated by the blower 11 is transported to the interior of the heating box 12 through the pipeline, and after being heated by the heating wire 13, it is transported to the interior of the rotating tube 5 through the connecting pipe 14 and the rotary joint 15. Finally, it is evenly blown onto the veterinary drug granules in the tumbling and conveying process through the air blowing hole 29 on the outside of the rotating tube 5, so as to achieve simultaneous filtration and drying. S4. After being filtered through the filter hole 7, the veterinary drug granules fall into the drying chamber 16. Using the belt, the rotation of the rotating tube 5 drives the rotating rod 17 and the spiral blade 18 to rotate. The spiral blade 18 then tumbles and conveys the veterinary drug granules that have entered the drying chamber 16 again. At the same time, some of the hot air blown into the drying filter box 3 and the drying filter box 4 will enter the drying chamber 16 through the filter hole 7, thereby further drying the veterinary drug granules that are tumbled and conveyed inside the drying chamber 16. S5. After passing the filtration, the veterinary drug granules are dried again in the drying oven 16 and then enter the collection box 28 through the collection pipe 1 26 and the collection pipe 27 for collection. The veterinary drug granules that fail the filtration are fully dried in the drying filter box 2 4 and then fall into the collection box 25 through the discharge pipe 24 for collection.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A veterinary drug granule drying and sieving device, characterized in that, Includes an L-shaped plate (1), on the outside of which two horizontal plates (2) are installed. At the ends of the two horizontal plates (2) away from the L-shaped plate (1), a drying filter box one (3) and a drying filter box two (4) are respectively fixedly installed. The drying filter box one (3) is located above the drying filter box two (4). A feed pipe (23) is installed at one end of the bottom of the drying filter box one (3). The bottom of the feed pipe (23) extends into the interior of the drying filter box two (4). Both the drying filter box one (3) and the drying filter box two (4) are rotatably connected to rotating tubes (5); One end of the rotating tube (5) located inside the first drying filter box (3) extends to the outside of the first drying filter box (3), and both ends of the rotating tube (5) located inside the second drying filter box (4) extend to the outside of the second drying filter box (4). The two rotating tubes (5) are connected by belt drive. The rotating tubes (5) are fixedly connected to the outside of the first drying filter box (3) or the second drying filter box (4). The two spiral blades (6) rotate in opposite directions. The outer side of the rotating tube (5) and the interior of the drying filter box (3) or the drying filter box (4) are provided with air blowing holes (29) at equal intervals. The air blowing holes (29) are all equipped with filter screens. A drive assembly is provided on one side of the drying filter box (3), and the drive assembly is used to drive the rotating tube (5) to rotate. A blower heating assembly is provided on the outside of the L-shaped plate (1). The blower heating assembly is connected to the inside of the rotating tube (5) and is used to deliver hot air into the inside of the rotating tube (5). Both the first drying filter box (3) and the second drying filter box (4) have filter holes (7) at their bottoms. Both the first drying filter box (3) and the second drying filter box (4) have secondary drying components at their bottoms and outside the filter holes (7). The secondary drying components are used to perform secondary drying on the filtered veterinary drug granules.

2. The veterinary drug granule drying and sieving device according to claim 1, characterized in that, The drive assembly includes a motor (8), a drive gear (9) and a driven gear (10). The motor (8) is fixedly connected to one side of the drying filter box (3), and the drive gear (9) is fixedly connected to the output shaft of the motor (8). The driven gear (10) is fixedly connected to the outside of the rotating tube (5) and located outside the drying filter box (3). The driving gear (9) meshes with the driven gear (10).

3. The veterinary drug granule drying and sieving device according to claim 2, characterized in that, The blower heating assembly includes a blower (11), a heating box (12), a heating wire (13), a connecting pipe (14), and a rotary joint (15). The heating box (12) is fixedly connected to the outside of the L-shaped plate (1), and the heating wire (13) is installed inside the heating box (12). The blower (11) is fixedly connected to the bottom of the L-shaped plate (1), and the output end of the blower (11) is connected to the interior of the heating box (12) through a pipe. The connecting pipe (14) is fixedly connected to the top of the heating box (12). The rotary joint (15) is fixedly connected to one end of the rotating tube (5) located outside the first drying filter box (3) or the second drying filter box (4). The end of the connecting tube (14) away from the heating box (12) is fixedly connected to the rotary joint (15) and communicates internally.

4. The veterinary drug granule drying and sieving device according to claim 1, characterized in that, The secondary drying assembly includes a drying box (16), a rotating rod (17), and a spiral blade (18). The drying box (16) is fixedly connected to the bottom of the first drying filter box (3) and the second drying filter box (4) and is located outside the filter hole (7). The rotating rod (17) is rotatably connected to the inside of the drying box (16), and one end of the rotating rod (17) extends to the outside of the drying box (16). The spiral blade (18) is fixedly connected to the outside of the rotating rod (17) and located inside the drying box (16). The rotating rod (17) and the corresponding rotating tube (5) are connected by belt drive, and the two spiral blades (18) rotate in opposite directions; The spiral blades (18) inside the drying box (16) at the bottom of the drying filter box (3) have the same rotation direction as the rotating tube (5) inside the drying filter box (3). The spiral blades (18) inside the drying box (16) at the bottom of the drying filter box (4) have the same rotation direction as the rotating tube (5) inside the drying filter box (4).

5. The veterinary drug granule drying and sieving device according to claim 3, characterized in that, A control panel (19) is fixedly installed on one side of the L-shaped plate (1), and the motor (8), blower (11) and heating wire (13) are all electrically connected to the control panel (19).

6. The veterinary drug granule drying and sieving device according to claim 1, characterized in that, Fixing holes (20) are provided at the four corners of the bottom of the L-shaped plate (1).

7. The veterinary drug granule drying and sieving device according to claim 3, characterized in that, The heating box (12) is rotatably connected to a door, which is used to maintain and replace the heating wire (13) inside the heating box (12).

8. The veterinary drug granule drying and sieving device according to claim 1, characterized in that, The top of the drying filter box (3) is fixedly connected to a feeding funnel (21) at the end away from the feeding pipe (23). The feeding funnel (21) is connected to the interior of the drying filter box (3). The top of the feeding funnel (21) is provided with a cover plate (22).

9. The veterinary drug granule drying and sieving device according to claim 1, characterized in that, The bottom of the drying filter box 2 (4) is fixedly connected to the end away from the feed pipe (23) by the discharge pipe (24); A collection box (25) is placed on top of the L-shaped plate (1) and below the discharge pipe (24). A collection pipe (26) is fixedly installed at the bottom of the drying box (16) located at the bottom of the drying filter box (3) near the end of the feed pipe (23); A collection pipe (27) is fixedly installed at the bottom of the drying box (16) located at the bottom of the drying filter box (4) away from the feed pipe (23), and the bottoms of the collection pipe (26) and the collection pipe (27) converge together; Collection box 2 (28) is placed on top of the L-shaped plate (1) and below the bottom of collection tube 1 (26) and collection tube 2 (27).

10. An integrated process for a veterinary drug granule drying and sieving device, characterized in that, The integrated process is implemented based on the veterinary drug granule drying and screening device according to any one of claims 1-9, and includes the following steps: S1. Add the wet veterinary drug granules to be dried into the interior of the drying filter box (3) through the feeding funnel (21); S2. Start the motor (8) through the control panel (19). The motor (8) drives the drive gear (9) to rotate and drives the driven gear (10) meshed with it to rotate, thereby driving the rotating tube (5) and the spiral blade (6) inside the drying filter box (3) to rotate, thereby tumbling and conveying the veterinary granules inside the drying filter box (3). At the same time, the filter hole (7) is used to filter the veterinary granules during the tumbling and conveying process. In addition, the belt drive is used to drive the rotating tube (5) and the spiral blade (6) inside the drying filter box (4) to rotate together, so that the veterinary granules that have not passed through the filter hole (7) can also be tumbling, conveying and filtering after entering the interior of the drying filter box (4) through the feed pipe (23). S3. Simultaneously start the blower (11) and the heating wire (13). The air generated by the blower (11) is transported to the interior of the heating box (12) through the pipe, and after being heated by the heating wire (13), it is transported to the interior of the rotating tube (5) through the connecting pipe (14) and the rotary joint (15). Finally, it is blown evenly onto the veterinary drug particles in the tumbling and conveying process through the air blowing hole (29) on the outside of the rotating tube (5) to achieve simultaneous filtration and drying. S4. After being filtered through the filter hole (7), the veterinary drug granules fall into the interior of the drying chamber (16). Using the belt, the rotating tube (5) rotates, driving the rotating rod (17) and the spiral blade (18) to rotate. The spiral blade (18) then tumbles and conveys the veterinary drug granules that have entered the drying chamber (16) again. At the same time, some of the hot air blown into the drying filter box (3) and the drying filter box (4) will enter the interior of the drying chamber (16) through the filter hole (7), thereby drying the veterinary drug granules that have been tumbled and conveyed inside the drying chamber (16) again. S5. After the veterinary drug granules that pass the filtration test are dried again in the drying box (16), they enter the inside of the collection box (28) through the collection pipe one (26) and the collection pipe two (27) for collection. The veterinary drug granules that fail the filtration test are fully dried in the drying filter box two (4) and finally fall into the inside of the collection box one (25) through the discharge pipe (24) for collection.

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