A multi-layer drying oven for pharmaceutical manufacturing

Abstract

This utility model relates to the field of pharmaceutical drying technology, and more particularly to a multi-layer drying oven for pharmaceutical manufacturing; comprising: a tank body, a pipe assembly, and trays; by centrally placing the medicine into the inner tube, and then the upper ends of the second opening and the first opening are connected, when the transmission plate rises, it pushes the medicine in the inner tube to distribute to multiple trays, and after the medicine is dried, the lower ends of the second opening and the first opening are connected, and the medicine in the multiple trays falls into the medicine receiving box along the inner tube. The above method facilitates the placement and removal of medicine, and when the medicine is stirred, the revolution of the stirring rod generates a certain centrifugal force on the medicine, causing the medicine to move from the center of the tray to the edge, the medicine moves to the end of the stirring rod, and then the medicine slides back to the center of the tray. This is repeated to stir the medicine, so that the medicine can be close to the heat source, thereby being heated evenly in the tank.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical drying technology, and in particular to a multi-layer drying oven for pharmaceutical manufacturing. Background Technology

[0002] Pharmaceutical drying ovens are specialized equipment used in the pharmaceutical, laboratory, and medical industries to remove moisture from pharmaceuticals, raw materials, or instruments. They typically achieve rapid and uniform drying through methods such as heating, ventilation, or vacuum.

[0003] To improve the drying efficiency of drugs, multiple trays are usually placed inside the drying chamber, and the drugs on multiple trays are dried at the same time. However, due to the large number of trays, it is troublesome and time-consuming to place and take out the drugs. In addition, there is usually an uneven drying degree of drugs in different positions in the same drying chamber. Drugs closer to the heat source are usually easier to dry, while drugs farther away from the heat source are more difficult to dry, thus affecting the drying effect of the drugs.

[0004] Therefore, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a multi-layer drying oven for pharmaceutical manufacturing, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a technical solution: including a tank, a pipeline assembly, and a tray;

[0007] A pipe assembly is vertically installed at the axial center of the top surface inside the tank. The pipe assembly includes: a sleeve, an inner tube, a screw, and a transmission plate. Multiple trays are equidistantly fixed to the sleeve. The sleeve has an opening between each of two trays, with a baffle in the center of each opening. The inner tube is slidably installed inside the sleeve, with an elastic element between them. A fan is connected to the upper end of the inner tube. A second opening is also provided between each of the two trays in the inner tube. The screw penetrates vertically downwards into the inner tube, and a motor is connected to the upper end of the screw. The moving plate bulges towards the center and has a through opening on its wall. The transmission plate is located inside the inner tube and fits against its wall. The transmission plate is interference-fitted with the middle and upper walls of the inner tube. The transmission plate is connected to the screw via a nut. The bottom surface of the tray is a sloped surface inclined towards the axis. The axis of the bottom surface of the tray is on the same horizontal plane as the lower end of the opening of the sleeve. A receiving box is provided below the inner tube. The second opening is connected to the upper end of the first opening and is used to discharge the medicine into multiple trays. The second opening is connected to the lower end of the first opening and is used to discharge the medicine into the receiving box.

[0008] Preferably, a rubber layer is provided on the wall surface above the middle part of the inner tube.

[0009] Preferably, the top surface of the tank is provided with an upper shell, one side of the upper shell is connected to a fan, the other side of the upper shell is provided with a feed inlet, and the feed inlet is provided with a sealing door.

[0010] Preferably, the upper end of the inner tube extends into the upper shell and communicates with the upper shell, wherein the upper end of the inner tube is funnel-shaped and the funnel-shaped upper end of the inner tube is attached to the inner wall of the upper shell.

[0011] Preferably, the tank is equipped with a stirring mechanism, which includes: a support, stirring rods, a second motor, and a medicine container. The support is L-shaped and there are two supports. The horizontal sections of the two supports are located at the lower end of the tank and are connected to the rotating shaft of the second motor. Multiple stirring rods are equidistantly arranged on the vertical sections of the two supports. The multiple stirring rods are respectively attached to the bottom surface of multiple trays, wherein the ends of the stirring rods are spaced apart from the edges of the trays. The rotation of the stirring rods generates a certain centrifugal force on the medicine.

[0012] Preferably, the bottom surface of the medicine container is provided with a rubber pad to prevent damage when the medicine falls.

[0013] Preferably, the tank body is provided with an air inlet pipe assembly, which includes an air distribution pipe and an exhaust pipe. The air distribution pipe is wrapped around the tank body, and there are multiple exhaust pipes. The multiple exhaust pipes are vertically arranged on the inner wall of the tank body and are connected to the air distribution pipe. Multiple air outlets are opened on the exhaust pipes, and the multiple air outlets correspond to the spacing of the multiple trays.

[0014] Preferably, a second sealing door is provided on one side of the tank wall located on the receiving box, and the receiving box can be removed by opening the second sealing door.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By centrally placing the medicine into the inner tube, and then connecting the upper end of the second opening to the first opening, the transmission plate pushes the medicine in the inner tube to distribute to multiple trays when it rises. After the medicine is dried, the lower end of the second opening to the first opening is connected, and the medicine in the multiple trays falls into the medicine receiving box along the inner tube. The above method facilitates the placement and removal of medicine.

[0017] 2. When stirring the medicine, the rotation of the stirring rod generates a certain centrifugal force on the medicine, causing the medicine to move from the center of the tray to the edge. The medicine moves to the end of the stirring rod, and then slides back to the center of the tray. This process is repeated to stir the medicine, ensuring that the medicine is close to the heat source and is heated evenly in the container. Attached Figure Description

[0018] Figure 1 A detailed structural diagram of a multi-layer drying oven used in pharmaceutical manufacturing.

[0019] Figure 2 This is a detailed diagram of the internal structure of a multi-layer drying oven used in pharmaceutical manufacturing.

[0020] Figure 3 This is a detailed structural diagram of the axial pipe assembly of a multi-layer drying oven used in pharmaceutical manufacturing.

[0021] Figure 4 This is a partial structural detail of a multi-layer drying oven used in pharmaceutical manufacturing.

[0022] Figure 5 This is a top view detail of the tray structure of a multi-layer drying oven used in pharmaceutical manufacturing.

[0023] In the diagram: 1. Tank body; 2. Piping assembly; 21. Sleeve; 22. Inner pipe; 23. Screw; 24. Motor 1; 25. Transmission plate; 211. Opening 1; 212. Baffle; 221. Opening 2; 222. Elastic element; 3. Upper shell; 31. Feed inlet; 32. Exhaust fan; 4. Tray; 5. Stirring mechanism; 51. Support; 52. Stirring rod; 53. Motor 2; 54. Medicine container; 6. Air inlet assembly; 61. Air distribution pipe; 62. Exhaust pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: including a tank 1, a pipe assembly 2, an upper shell 3, a tray 4, a stirring mechanism 5, and an air inlet pipe assembly 6;

[0026] like Figure 1-2 As shown, a pipe assembly 2 is vertically arranged at the center of the top surface inside the tank 1. The upper shell 3 is fixed to the top surface of the tank 1. A blower 32 is connected to one side of the upper shell 3. The blower 32 actively extracts the moisture in the tank 1. A feed inlet 31 is opened on the other side of the upper shell 3. The feed inlet 31 is equipped with a sealing door. There are multiple trays 4, which are fixed at equal intervals inside the tank 1. The stirring mechanism 5 stirs the medicine in the multiple trays 4. The air inlet pipe assembly 6 delivers hot air into the tank 1 to dry the medicine in the multiple trays 4. A sealing door 2 is opened on the wall of the tank 1. The dried medicine is taken out by opening the sealing door 2.

[0027] like Figure 2-4 As shown, the pipe assembly 2 includes: a sleeve 21, an inner tube 22, a screw 23, and a transmission plate 25. The sleeve 21 and the inner tube 22 have rectangular cross-sections. The upper end of the sleeve 21 is connected to the upper housing 3. Multiple trays 4 are equidistantly fixed on the sleeve 21. The sleeve 21 has an opening 211 between two trays 4, and a baffle 212 is provided in the middle of the opening 211. The inner tube 22 is slidably disposed inside the sleeve 21. An elastic element 222 is provided between the inner tube 22 and the sleeve 21 to support the inner tube 22. The upper end of the inner tube 22 extends into the upper housing 3 and communicates with the upper housing 3. The upper end of the inner tube 22 is funnel-shaped, and the upper end of the funnel-shaped inner tube 22 is connected to the upper housing 3. The inner wall of the shell 3 is fitted together. The inner tube 22 is located between the two trays 4 and has two openings 221 respectively. The initial openings 221 are blocked by the baffle 212. The screw 23 penetrates vertically downward along the upper shell 3 into the inner tube 22, and the lower end of the screw 23 extends out of the inner tube 22. The upper end of the screw 23 is connected to the motor 24. The transmission plate 25 is raised towards the center and has a through-hole smaller than the volume of the drug on its wall. The transmission plate 25 is located in the inner tube 22 and fits against its wall. The transmission plate 25 is interference-fitted with the middle and upper wall of the inner tube 22, that is, the wall above the middle of the inner tube 22 is provided with a rubber layer. The transmission plate 25 is connected to the screw 23 by a nut. The motor 24 rotates the screw 23 in both directions to move the transmission plate 25 up and down.

[0028] like Figure 1-4 As shown, the bottom surface of the tray 4 is a sloped surface inclined towards the axis, and the axis of the bottom surface of the tray 4 is on the same horizontal plane as the lower end of the opening 211 of the sleeve 21.

[0029] like Figure 1 , Figure 2 , Figure 5As shown, the stirring mechanism 5 includes: a support 51, stirring rods 52, a second motor 53, and a medicine container 54. The support 51 is L-shaped, and there are two supports. The horizontal sections of the two supports 51 are located at the lower end of the interior of the tank 1 and are connected to the rotating shaft of the second motor 53. Multiple stirring rods 52 are equidistantly arranged on the vertical sections of the two supports 51. The stirring rods 52 are inclined in both the vertical and horizontal directions. The multiple stirring rods 52 are respectively attached to the bottom surfaces of multiple trays 4, with a certain distance between the ends of the stirring rods 52 and the edges of the trays 4. When the medicine in tray 4 is stirred, the stirring rod 52 rotates and generates a certain centrifugal force on the medicine, causing the medicine to move from the center of tray 4 to the edge. When the medicine moves to the end of the stirring rod 52, the stirring rod 52 stops acting on the medicine, and the medicine slides back to the center of tray 4. This process is repeated to stir the medicine. A detachable medicine receiving box 54 is provided on the support 51. The medicine receiving box 54 is located below the inner tube 22, and the axes of the two are on the same straight line. The medicine receiving box 54 is used to receive the dried medicine. A rubber pad is provided on the bottom surface of the medicine receiving box 54 to prevent damage when the medicine falls.

[0030] like Figure 1 , Figure 2 As shown, the air inlet pipe assembly 6 includes: an air distribution pipe 61 and an exhaust pipe 62. The air distribution pipe 61 is wrapped around the tank body 1. There are multiple exhaust pipes 62, which are vertically arranged on the inner wall of the tank body 1 and connected to the air distribution pipe 61. Multiple air outlets are opened on the exhaust pipes 62, and the multiple air outlets correspond to the spacing of the multiple trays 4. Hot air flows into the multiple exhaust pipes 62 along the air distribution pipe 61 and then exits along the multiple air outlets of the exhaust pipes 62 to dry the medicine on the trays 4.

[0031] Working principle:

[0032] Undried medicine is poured into the inner tube 22 through the feed inlet 31. The undried medicine accumulates to the top of the first opening 211. The motor 24 rotates forward, and the transmission plate 25 moves upward via the screw 23. When the transmission plate 25 reaches the middle of the inner tube 22, it is press-fitted with the inner tube 22 and pushes the inner tube 22 upward. When the elastic element 222 is compressed to its shortest length, the second opening 221 connects with the upper end of the first opening 211, and the undried medicine is transported by the transmission plate 24. Driven by plate 25, the dried medicine enters the trays 4 through multiple openings 221 and 211. Because there is a height difference between the upper end of opening 211 and the undried medicine in tray 4, the dried medicine cannot flow out. When the transmission plate 25 moves to the upper end of the inner tube 22, it stops. The inner tube 22 is interference-fitted with the transmission plate 25, which continuously limits the movement of the inner tube 22, allowing the upper ends of openings 221 and 211 to connect. Hot air flows along the air distribution pipe 61. The medicine on the tray 4 is dried by entering and exiting through multiple exhaust pipes 62. Multiple stirring rods 52 rotate to stir the medicine. As the hot air gradually decreases in temperature after exiting through the exhaust port, the medicine moves sequentially from the center to the edge of the tray 4 to ensure uniform heating. The moisture in the medicine is discharged through opening 1 211, opening 221, the through-hole in the wall of the transmission plate 25, and the exhaust fan 32. After the medicine is dried, motor 1 24 reverses, and the transmission plate 25 moves downward through the screw 23, that is, the inner tube 22 moves downward a certain distance. Opening 221 is connected to the lower end of opening 1 211. The dried medicine enters the inner tube 22 through multiple openings 1 211 and opening 2 221, and then falls into the medicine receiving box 54. The medicine receiving box 54 is manually removed for storage. Finally, the transmission plate 25 returns to the lower end of the screw 23, and the inner tube 22 rises through the elastic element 222. The baffle 212 re-seals opening 221.

Claims

1. A multi-tiered drying oven for pharmaceutical manufacturing, comprising: The container includes a tank (1), a pipe assembly (2), and trays (4); characterized in that: the pipe assembly (2) is vertically arranged at the center of the top surface inside the tank (1), the pipe assembly (2) includes: a sleeve (21), an inner tube (22), a screw (23), and a transmission plate (25), multiple trays (4) are fixed at equal intervals on the sleeve (21), the sleeve (21) has an opening (211) at equal intervals, a baffle (212) is provided in the middle of the opening (211), the inner tube (22) is slidably arranged inside the sleeve (21), and an elastic element (222) is provided between them, the inner tube (22) is connected to a fan (32), and an opening (221) is opened at equal intervals on the inner tube (22), the initial baffle (212) is positioned opposite the opening (221). 221) Blocking, the screw (23) penetrates vertically downward into the inner tube (22), the upper end of the screw (23) is connected to the motor (24), the wall of the transmission plate (25) has a through opening, the transmission plate (25) is located in the inner tube (22), the transmission plate (25) is interference-fitted with the middle and upper wall of the inner tube (22), the transmission plate (25) is connected to the screw (23) by a nut; the bottom surface of the tray (4) is a slope inclined towards the axis; a receiving box is provided below the inner tube (22); the second opening (221) is connected to the upper end of the first opening (211) for discharging the medicine into multiple trays (4), the second opening (221) is connected to the lower end of the first opening (211) for discharging the medicine into the receiving box.

2. The multi-layer drying oven for pharmaceutical production according to claim 1, characterized in that: A rubber layer is provided on the wall surface above the middle part of the inner tube (22).

3. The multi-layer drying oven for pharmaceutical production according to claim 1, characterized in that: The tank (1) has an upper shell (3) on its top surface. A blower (32) is connected to one side of the upper shell (3). An inlet (31) is opened on the other side of the upper shell (3). The inlet (31) is equipped with a sealing door.

4. The multi-layer drying oven for pharmaceutical production according to claim 1, characterized in that: The upper end of the inner tube (22) extends into the upper shell (3) and communicates with the upper shell (3). The upper end of the inner tube (22) is funnel-shaped, and the funnel-shaped upper end of the inner tube (22) is attached to the inner wall of the upper shell (3).

5. The multi-deck drying cabinet for pharmaceutical production as claimed in claim 1, wherein: The tank (1) is equipped with a stirring mechanism (5), which includes a support (51), stirring rods (52), motor II (53), and a medicine box (54). The support (51) is "L" shaped and there are two of them. The horizontal section of the two supports (51) is located at the lower end of the tank (1) and is connected to the rotating shaft of motor II (53). Multiple stirring rods (52) are equidistantly arranged on the vertical section of the two supports (51). The multiple stirring rods (52) are respectively attached to the bottom surface of multiple trays (4). The end of the stirring rod (52) is at a certain distance from the edge of the tray (4). The revolution of the stirring rod (52) generates a certain centrifugal force on the medicine.

6. The multi-deck drying oven for pharmaceutical production according to claim 5, characterized in that: The bottom surface of the medicine box (54) is provided with a rubber pad.

7. The multi-deck drying cabinet for pharmaceutical production as claimed in claim 1, wherein: The tank (1) is provided with an air inlet pipe assembly (6), which includes an air distribution pipe (61) and an exhaust pipe (62). The air distribution pipe (61) is wrapped around the tank (1), and there are multiple exhaust pipes (62). Multiple exhaust pipes (62) are vertically arranged on the inner wall of the tank (1) and connected to the air distribution pipe (61). Multiple air outlets are opened on the exhaust pipes (62), and the multiple air outlets correspond to the spacing of multiple trays (4).

8. The multi-deck drying cabinet for pharmaceutical production as claimed in claim 1, wherein: A sealing door is provided on one side of the receiving box on the wall of the tank (1).

Images