Drying device for liquid medicine in pharmaceutical production
By using a rotating assembly and a servo motor-driven gear meshing transmission, combined with a pressure relief and fan blade design, the problem of uneven temperature during the drying process of liquid drugs is solved, thereby improving the drying speed and equipment safety.
Patent Information
- Application Number
- CN202423198717.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In current pharmaceutical manufacturing processes, uneven temperature distribution during the drying of liquid drugs leads to slow drying speeds.
A rotating component is used to rotate the liquid medicine in the tray, combined with a servo motor to drive gear meshing transmission to ensure uniform heating of the medicine, and a pressure relief component and fan blades are used to enhance gas circulation to maintain uniform temperature inside the chamber.
This method achieves a uniform temperature rise in liquid drugs, improves drying speed, prevents drug spillage, and protects the equipment from overpressure damage.
Smart Images

Figure CN223959193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical technology, specifically to a drying device for liquid drugs in pharmaceutical production. Background Technology
[0002] Currently, in pharmaceutical production, trays are commonly used to dry liquid drugs, thereby removing moisture from the liquid drugs before processing and use. Existing liquid drug drying technologies involve placing the liquid drug in a tray, and then placing the tray on a drying rack inside a drying chamber for drying.
[0003] Existing drying ovens use internal heating to dry the drugs inside the trays. This involves heating the trays to heat the drugs inside. However, during this process, the temperature of the drugs in contact with the inner wall of the tray rises too quickly, while the temperature of the drugs far from the inner wall rises more slowly, resulting in uneven overall temperature and slow drying speed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a drying device for liquid drugs in pharmaceutical production. It has the advantage of rotating the drug to ensure a uniform temperature rise and accelerate drying, while avoiding the problem of slow drying caused by uneven temperature distribution of the liquid drug.
[0005] To achieve the goal of rotating the drug to uniformly raise the temperature of the liquid drug and accelerate drying, this utility model provides the following technical solution:
[0006] A drying apparatus for liquid drugs in pharmaceutical manufacturing includes a drying chamber, a heater fixedly connected to the side wall of the drying chamber, multiple drying chambers formed inside the drying chamber, a rotating assembly installed inside each drying chamber for rotating the drug in the inner chamber of a tray, and a pressure relief assembly installed on the inner wall of the drying chamber. The apparatus also includes:
[0007] The rotating assembly includes a partition plate, which is fixedly installed in the inner cavity of the drying chamber. Multiple partition plates are provided. A connecting column is rotatably connected to the top of the partition plate, and a tray is snapped onto the top of the connecting column. A servo motor is fixedly connected to the top of the drying chamber. A rotating shaft is fixedly connected to the output end of the servo motor. A first gear is fixedly connected to the side wall of the rotating shaft, and a second gear is fixedly connected to the side wall of the connecting column. The first gear and the second gear are meshed together.
[0008] According to some embodiments, a mounting bracket is fixedly connected to the top of the connecting column, a connecting block is snapped into the inner wall of the mounting bracket, a tray is fixedly connected to the top of the connecting block, and the side wall of the tray is set to be arc-shaped.
[0009] According to some embodiments, the sidewall of the connecting block is threaded with a threaded bolt, and the threaded bolt passes through the mounting bracket, and a limit ring is fixedly connected to the top of the tray.
[0010] According to some embodiments, the pressure relief assembly includes a connecting pipe, which is fixedly installed on the top of the drying chamber, and the connecting pipe has a square opening on its side wall.
[0011] According to some embodiments, a rubber plug is slidably connected to the inner wall of the connecting tube, and a spring is fixedly connected between the rubber plug and the top wall of the connecting tube.
[0012] According to some embodiments, the surface of the partition is provided with multiple holes, and the top of the partition located below the connecting pipe is provided with a through hole.
[0013] According to some embodiments, a rotating column is rotatably connected to the bottom wall of the drying oven, and fan blades are fixedly connected to the side wall of the rotating column.
[0014] According to some embodiments, both the rotating shaft and the side wall of the rotating column are fixedly connected to sprockets, and the sprockets are rotatably connected to each other by a track. Beneficial effects
[0015] This invention provides a drying device for liquid drugs in pharmaceutical production, which has the following beneficial effects:
[0016] In this pharmaceutical manufacturing process, the liquid drug drying device attaches a tray containing the drug to the top of a connecting column. Then, a servo motor drives a rotating shaft to rotate. Since the first gear and the second gear are meshed, the rotating shaft can drive the connecting column to rotate, thereby rotating the tray. The tray, in turn, causes the liquid drug inside its cavity to rotate, thus mixing the drugs, preventing uneven heating of the liquid drug and improving the drying speed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the left side structure of the device of this utility model;
[0018] Figure 2 This is a schematic diagram of the right side structure of the device of this utility model;
[0019] Figure 3 This is a schematic diagram (front view) of the structure of the device of this utility model;
[0020] Figure 4 This is a partial cross-sectional structural diagram of the device of this utility model;
[0021] Figure 5 This is a schematic diagram (front view) of the mounting bracket of this utility model.
[0022] In the diagram: 1. Drying oven; 101. Heater; 102. Drying chamber; 103. Tray; 2. Rotating assembly; 201. Partition; 202. Connecting column; 203. Servo motor; 204. Rotating shaft; 205. First gear; 206. Second gear; 207. Mounting bracket; 208. Connecting block; 209. Threaded bolt; 210. Limiting ring; 3. Pressure relief assembly; 301. Connecting pipe; 302. Square opening; 303. Rubber plug; 304. Spring; 305. Through hole; 4. Rotating column; 401. Fan blade; 402. Sprocket; 403. Track. Detailed Implementation
[0023] 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.
[0024] Reference Figures 1-5 A drying apparatus for liquid drugs in pharmaceutical production includes a drying chamber 1, a heater 101 fixedly connected to the side wall of the drying chamber 1, multiple drying chambers 102 formed inside the drying chamber 1, a rotating assembly 2 installed inside the drying chamber 102 for rotating the drug in the inner cavity of a tray 103, and a pressure relief assembly 3 installed on the inner wall of the drying chamber 1. The apparatus also includes:
[0025] The rotating assembly 2 includes a partition 201, which is fixedly installed in the inner cavity of the drying oven 1. Multiple partitions 201 are provided. A connecting column 202 is rotatably connected to the top of the partition 201. A tray 103 is snapped onto the top of the connecting column 202. A servo motor 203 is fixedly connected to the top of the drying oven 1. A rotating shaft 204 is fixedly connected to the output end of the servo motor 203. A first gear 205 is fixedly connected to the side wall of the rotating shaft 204. A second gear 206 is fixedly connected to the side wall of the connecting column 202. The first gear 205 and the second gear 206 are meshed together.
[0026] A mounting bracket 207 is fixedly connected to the top of the connecting column 202. A connecting block 208 is snapped into the inner wall of the mounting bracket 207. A tray 103 is fixedly connected to the top of the connecting block 208, and the side wall of the tray 103 is set to be arc-shaped.
[0027] The connecting block 208 has a threaded bolt 209 threaded on its side wall, and the threaded bolt 209 passes through the mounting bracket 207. The top of the tray 103 is fixedly connected to a limit ring 210.
[0028] It should be noted that: the medicine is placed in the inner cavity of the tray 103, and then the tray 103 is installed by using the threaded bolt 209 to pass through the connecting block 208 and the mounting bracket 207. The heater 101 can heat the drying oven 1 to dry the medicine. The servo motor 203 drives the rotating shaft 204 to rotate. Since the first gear 205 on the side wall of the rotating shaft 204 and the second gear 206 on the side wall of the connecting column 202 are meshed, the rotating shaft 204 can drive the connecting column 202 to rotate, thereby rotating the tray 103. The tray 103 will then drive the liquid medicine in its inner cavity to rotate, thereby mixing and avoiding uneven heating of the liquid medicine, thus improving the drying speed. In addition, the limiting ring 210 can be used to prevent the liquid medicine from spilling out of the tray 103 when the tray 103 rotates.
[0029] Reference Figures 1-5 The pressure relief assembly 3 includes a connecting pipe 301, which is fixedly installed on the top of the drying oven 1. A square opening 302 is provided on the side wall of the connecting pipe 301.
[0030] A rubber plug 303 is slidably connected to the inner wall of the connecting tube 301, and a spring 304 is fixedly connected between the rubber plug 303 and the inner top wall of the connecting tube 301.
[0031] The surface of the partition 201 has multiple holes, and the top of the partition 201 located below the connecting pipe 301 has a through hole 305.
[0032] It should be noted that during the drying process of liquid drugs, a large amount of water vapor is generated, which increases the pressure inside the drying chamber 1. When the pressure increases to a certain level, it will push the rubber stopper 303 inside the connecting pipe 301 to slide up to the square opening 302. At this time, the spring 304 is compressed, and the water vapor inside the drying chamber 1 will flow out from the square opening 302 on the side wall of the connecting pipe 301. This prevents the pressure inside the drying chamber 1 from becoming too high and causing equipment damage. After the water vapor flows out, the rubber stopper 303 returns to its original position due to the rebound force of the spring 304, keeping the drying chamber 1 in a sealed state and preventing excessive heat loss.
[0033] Reference Figures 1-5 A rotating column 4 is rotatably connected to the bottom wall of the drying oven 1, and a fan blade 401 is fixedly connected to the side wall of the rotating column 4;
[0034] Both the rotating shaft 204 and the side wall of the rotating column 4 are fixedly connected to sprockets 402, and the sprockets 402 are rotatably connected to each other by a track 403.
[0035] It should be noted that the rotating shaft 204 drives the rotating column 4 to rotate through the track 403 on the side wall of the sprocket 402, thereby causing the fan blade 401 to rotate and generate wind, which in turn increases the flow rate of gas in the drying chamber 1 through the holes and through holes 305 on the surface of the partition 201, so that the temperature of the drying chamber 1 is uniform, which is convenient for drying the liquid drugs in the inner cavity of the tray 103.
[0036] Operating procedure: The medicine is placed in the inner cavity of the tray 103. Then, the tray 103 is installed by using the threaded bolt 209 to pass through the connecting block 208 and the mounting bracket 207. The heater 101 can heat the drying oven 1 to dry the medicine. The servo motor 203 drives the rotating shaft 204 to rotate. Since the first gear 205 on the side wall of the rotating shaft 204 and the second gear 206 on the side wall of the connecting column 202 are meshed, the rotating shaft 204 can drive the connecting column 202 to rotate, thereby rotating the tray 103. The tray 103 will then drive the liquid medicine in its inner cavity to rotate, thereby mixing and avoiding uneven heating of the liquid medicine, thus improving the drying speed. In addition, the limiting ring 210 can prevent the liquid medicine from spilling out of the tray 103 when the tray 103 rotates.
[0037] The rotating shaft 204 drives the rotating column 4 to rotate through the track 403 on the side wall of the sprocket 402, thereby causing the fan blade 401 to rotate and generate wind, thereby increasing the flow rate of gas in the drying chamber 1 through the holes and through holes 305 on the surface of the partition 201, so that the temperature of the drying chamber 1 is uniform, which is convenient for drying liquid drugs in the inner cavity of the tray 103.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for drying a liquid pharmaceutical product in pharmaceutical production, comprising a drying cabinet (1), characterized in that: The drying box (1) is fixedly connected with a heater (101) on the side wall, a plurality of drying cavities (102) are arranged in the inner cavity of the drying box (1), a rotating assembly (2) is arranged in the inner cavity of the drying cavity (102), and the rotating assembly (2) is used for rotating the medicine in the inner cavity of the tray (103). The rotating assembly (2) comprises a partition plate (201) fixedly arranged in the inner cavity of the drying box (1), and the partition plate (201) is provided with a plurality of groups; the partition plate (201) is rotatably connected with a connecting column (202) at the top; the connecting column (202) is connected with a tray (103) at the top; the drying box (1) is fixedly connected with a servo motor (203) at the top; the servo motor (203) is fixedly connected with a rotating shaft (204) at the output end; the rotating shaft (204) is fixedly connected with a first gear (205) on the side wall; the connecting column (202) is fixedly connected with a second gear (206) on the side wall; and the first gear (205) and the second gear (206) are meshed.
2. The device for drying liquid pharmaceuticals in pharmaceutical production according to claim 1, characterized in that: The connecting column (202) is fixedly connected with a mounting bracket (207) at the top; the mounting bracket (207) is connected with a connecting block (208) on the inner wall; the connecting block (208) is fixedly connected with a tray (103) at the top; and the side wall of the tray (103) is provided in an arc shape.
3. The device for drying a liquid pharmaceutical product in pharmaceutical production according to claim 2, characterized in that: The connecting block (208) is threadedly connected with a threaded bolt (209) on the side wall, and the threaded bolt (209) penetrates the mounting bracket (207); and the tray (103) is fixedly connected with a limiting ring (210) at the top.
4. The device for drying a liquid pharmaceutical product in pharmaceutical production according to claim 3, characterized in that: The pressure relief assembly (3) comprises a connecting pipe (301) fixedly arranged on the top of the drying box (1); and a square opening (302) is arranged on the side wall of the connecting pipe (301).
5. The device for drying a liquid pharmaceutical product in pharmaceutical production according to claim 4, characterized in that: A rubber plug (303) is slidably connected to the inner wall of the connecting pipe (301), and a spring (304) is arranged between the rubber plug (303) and the inner top wall of the connecting pipe (301).
6. The device for drying a liquid pharmaceutical product in pharmaceutical production according to claim 5, characterized in that: A plurality of holes are arranged on the surface of the partition plate (201), and a through hole (305) is arranged on the top of the partition plate (201) below the connecting pipe (301).
7. The device for drying a liquid pharmaceutical product in pharmaceutical production according to claim 6, characterized in that: A rotating column (4) is rotatably connected to the inner bottom wall of the drying box (1), and the rotating column (4) is fixedly connected with a fan blade (401) on the side wall.
8. The device for drying a liquid pharmaceutical product in pharmaceutical production according to claim 7, characterized in that: Chain wheels (402) are fixedly connected to the side walls of the rotating shaft (204) and the rotating column (4), and a track (403) is rotatably connected between the chain wheels (402).