Dryer for dexamethasone production

By designing a compact drying assembly, three-dimensional drying of dexamethasone granules was achieved, solving the problems of large equipment size and large footprint, improving drying efficiency and reducing energy consumption costs.

CN223992422UActive Publication Date: 2026-03-13FUZHOU HUAXIA LIANGFANG BIOPHARMACEUTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing dexamethasone granule dryers are bulky due to their single-layer static drying design, which leads to inflexible production workshop layouts and increases the construction and energy costs for small and medium-sized pharmaceutical factories.

Method used

It adopts a compact drying component, including a hot air blower, connecting pipe, air outlet, stirring frame and filter plate. It achieves three-dimensional drying of particles through hot air circulation. Combined with the automatic rotation of the stirring frame, it ensures that the particles are heated evenly. The integrated filtration system intercepts particles from overflowing.

Benefits of technology

While reducing the floor space required, it improves drying efficiency, making it suitable for modern pharmaceutical production lines with limited space and reducing energy costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medicine drying, in particular to a drying machine for dexamethasone production, which comprises a base. The drying device further comprises a drying assembly, the drying assembly is arranged at the upper end of the base, and the drying assembly comprises a connecting plate, a round barrel, a supporting block, an air heater, a connecting pipe, an air outlet hole, a rotating rod, a stirring frame, an air outlet and a filtering plate. By arranging the drying assembly and the efficient hot air circulation structure, three-dimensional drying treatment of particles can be achieved, airflow generated by the air heater is conveyed through the optimally-designed connecting pipe, a uniform airflow field is formed through the multi-directional air outlet holes, the stirring frame is driven to automatically rotate while the particles are blown, three-dimensional stirring of the particles is achieved, and the drying efficiency is improved. The pneumatic mechanical synergistic effect mechanism can ensure that the particles are heated uniformly, the drying efficiency is improved compared with a traditional mode, meanwhile, the integrated filtering system effectively intercepts the particles from overflowing, the compact structural design is matched, and the excellent drying performance can still be kept under the condition that the occupied area is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical drying technology, and in particular to a dryer for the production of dexamethasone. Background Technology

[0002] The dexamethasone granule dryer is a drying equipment specifically designed for the production of dexamethasone granule formulations. It adopts low-temperature precise temperature control and uniform drying technology, and removes moisture and solvents from the granules through hot air circulation or vacuum drying to ensure drug activity and stability. The equipment is equipped with GMP compliant design and integrates solvent recovery and dust removal systems to meet the cleanliness and safety requirements of pharmaceutical production.

[0003] The existing dexamethasone granule dryer adopts a single-layer static drying structure, which is bulky and requires a lot of space for operation and maintenance. This restricts the layout of pharmaceutical production workshops, especially causing serious space utilization problems for small and medium-sized pharmaceutical factories, while also increasing the cost of factory construction and energy consumption.

[0004] Therefore, given that the existing dexamethasone granule dryers adopt a single-layer static drying design, resulting in large equipment size and the need to reserve a large amount of operating space, which not only severely restricts the flexibility of production workshop layout but also significantly increases the construction and energy consumption costs of small and medium-sized pharmaceutical factories, there is an urgent need to design a new type of dryer for dexamethasone production. Utility Model Content

[0005] To overcome the problems of existing dexamethasone granule dryers, which adopt a single-layer static drying design, have a large equipment size and require a lot of operating space, which not only seriously restricts the flexibility of production workshop layout, but also significantly increases the construction and energy consumption costs of small and medium-sized pharmaceutical factories.

[0006] The technical solution of this utility model is as follows: a dryer for dexamethasone production, including a base; and a drying component. The drying component is provided at the upper end of the base. The drying component includes a connecting plate, a cylindrical barrel, a support block, a hot air blower, a connecting pipe, an air outlet, a rotating rod, a stirring frame, an air outlet, and a filter plate. The rear end of the base is connected to the connecting plate, and the upper front side of the connecting plate is connected to the cylindrical barrel. The left end of the base is connected to the support block, and the top of the support block is connected to the hot air blower, which is connected to an external power source. The right end of the hot air blower extends into the inside of the cylindrical barrel and is connected to the connecting pipe. The right end of the connecting pipe has multiple air outlets at equal intervals. The inside of the cylindrical barrel is rotatably connected to a rotating rod, and the outer end of the rotating rod is connected to multiple stirring frames at equal intervals. The top of the cylindrical barrel is provided with an air outlet, which is connected to the cylindrical barrel. The top of the air outlet is connected to a filter plate.

[0007] Preferably, by setting up a drying component, the hot air blower blows hot air through the air outlet via a connecting pipe, thereby blowing the particles. While blowing the particles, the stirring frame is rotated by the rotating rod, which fully stirs and mixes the particles, improves the drying efficiency, and achieves rapid drying of the particles. The hot air is discharged through the air outlet, and the filter plate is used to filter the particles. This compact design can greatly reduce the floor space while improving the drying efficiency.

[0008] Preferably, a rotating shaft is connected to the lower front end of the cylinder with damping, and a knob is connected to the front end of the rotating shaft.

[0009] Preferably, the outer end of the rotating shaft is connected to an arc plate, which cooperates with the cylindrical barrel.

[0010] Preferably, a fixing block is connected to the right end of the cylinder, and a knob is damped to the right end of the fixing block.

[0011] Preferably, the outer end of the knob is connected to a baffle, and the left end of the baffle is connected to a stop block, which is movably connected to the arc plate.

[0012] Preferably, a feeding port is connected to the top left side of the cylinder, and the feeding port is connected to the cylinder.

[0013] Preferably, a cover plate is slidably connected to the top of the feeding port, and a lever plate is connected to the top of the cover plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up drying components, the efficient hot air circulation structure can achieve three-dimensional drying of particles. The airflow generated by the hot air blower is transported through the optimized connecting pipe and forms a uniform airflow field through multi-directional air outlets. While blowing the particles, it drives the stirring frame to rotate automatically, realizing three-dimensional tumbling of the particles. This pneumatic-mechanical synergy mechanism can ensure that the particles are heated evenly and the drying efficiency is improved compared with traditional methods. At the same time, the integrated filtration system effectively intercepts particle overflow. Combined with the compact structural design, it can maintain excellent drying performance while reducing the floor space, making it particularly suitable for modern pharmaceutical production lines with limited space. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional rear view of the dryer for dexamethasone production according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the dexamethasone production dryer of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional orthographic section of the dryer for dexamethasone production according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional top-section structural diagram of the dexamethasone production dryer of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Base; 21. Connecting plate; 22. Cylinder; 23. Support block; 24. Hot air blower; 25. Connecting pipe; 26. Air outlet; 27. Rotating rod; 28. Stirring frame; 29. ​​Air outlet; 210. Filter plate; 31. Rotating shaft; 32. Knob; 33. Arc plate; 34. Fixing block; 35. Knob; 36. Baffle; 37. Stop block; 38. Feeding port; 39. Cover plate; 310. Paddle plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment of a dexamethasone production dryer, including a base 1 and a drying assembly. The drying assembly is located at the upper end of the base 1 and includes a connecting plate 21, a cylindrical barrel 22, a support block 23, a hot air blower 24, a connecting pipe 25, an air outlet 26, a rotating rod 27, a stirring frame 28, an air outlet 29, and a filter plate 210. The connecting plate 21 is connected to the rear end of the base 1, and the cylindrical barrel 22 is connected to the upper front end of the connecting plate 21. The support block 23 is connected to the left end of the base 1, and the hot air blower 24 is connected to the top of the support block 23. The hot air blower 24 is connected to an external power source, and the right end of the hot air blower 24 extends into the cylindrical barrel 22 and is connected to the connecting pipe 25. The right end of the connecting pipe 25 has multiple air outlets at equal intervals. 26. A rotating rod 27 is rotatably connected inside the cylindrical barrel 22. Multiple stirring frames 28 are connected at equal intervals to the outer end of the rotating rod 27. An air outlet 29 is provided on the top of the cylindrical barrel 22 and is connected to the cylindrical barrel 22. A filter plate 210 is connected to the top of the air outlet 29. By setting up the drying component, the hot air blower 24 blows hot air through the air outlet 26 through the connecting pipe 25, thereby blowing the particles. While blowing the particles, the stirring frames 28 are driven to rotate through the rotating rod 27, which fully stirs and mixes the particles, improves the drying efficiency, and achieves rapid drying of the particles. The hot air is discharged through the air outlet 29, and the filter plate 210 is used to filter the particles. This compact design can greatly reduce the floor space while improving the drying efficiency.

[0023] Please see Figures 1-4In this embodiment, a rotating shaft 31 is dampedly connected to the lower front end of the cylindrical barrel 22. A knob 32 is connected to the front end of the rotating shaft 31. The knob 32 facilitates the rotation of the rotating shaft 31, thereby facilitating the pouring out of the dried granules. An arc plate 33 is connected to the outer end of the rotating shaft 31. The arc plate 33 cooperates with the cylindrical barrel 22. The rotation of the rotating shaft 31 drives the arc plate 33 to rotate, thereby assisting in the pouring out of the granules. A fixing block 34 is connected to the right end of the cylindrical barrel 22. A knob 35 is dampedly connected to the right end of the fixing block 34. The knob 35 is used to assist in limiting the position of the arc plate 33.

[0024] Please see Figures 2-4 In this embodiment, a baffle 36 is connected to the outer end of the knob 35, and a stop block 37 is connected to the left end of the baffle 36. The stop block 37 is movably connected to the arc plate 33. Rotating the knob 35 drives the baffle 36, which in turn drives the stop block 37 to rotate. The stop block 37 is used to press against the arc plate 33, thereby limiting the arc plate 33. A feeding port 38 is connected to the top left side of the cylinder 22. The feeding port 38 is connected to the cylinder 22 and is used to pour the granules into the cylinder 22. A cover plate 39 is slidably connected to the top of the feed inlet 38. A lever plate 310 is connected to the top of the cover plate 39. The lever plate 310 drives the cover plate 39 to slide on the feed inlet 38, thereby blocking the feed inlet 38 to prevent particles from being blown out. Rotating the knob 35 drives the baffle 36. The baffle 36 rotates and drives the stop block 37 to rotate. The stop block 37 is used to abut against the arc plate 33, thereby releasing the limitation on the arc plate 33. Rotating the shaft 31 drives the arc plate 33 to rotate, thereby assisting the particles to be poured out.

[0025] During operation, the granules are poured into the feeding port 38, and the lever 310 is turned. The lever 310 causes the cover plate 39 to slide on the feeding port 38, thereby blocking the feeding port 38 to prevent the granules from being blown out. The hot air blower 24 is started, and the hot air blows hot air through the air outlet 26 via the connecting pipe 25, thereby blowing the granules. While blowing the granules, the stirring frame 28 is driven to rotate via the rotating rod 27, which fully stirs and mixes the granules, improves the drying efficiency, and achieves rapid drying of the granules. The hot air is discharged through the air outlet 29. The filter plate 210 is used to filter the granules. The knob 32 is turned, and the knob 32 drives the rotating shaft 31 to rotate. The rotating shaft 31 drives the arc plate 33 to rotate, thereby assisting the granules to be poured out.

[0026] Through the above steps, by setting up drying components, the efficient hot air circulation structure can achieve three-dimensional drying of particles. The airflow generated by the hot air blower 24 is transported through the optimized connecting pipe 25 and forms a uniform airflow field through the multi-directional air outlet 26. While blowing the particles, it drives the stirring frame 28 to rotate automatically, realizing the three-dimensional tumbling of the particles. This pneumatic-mechanical synergistic mechanism can ensure that the particles are heated evenly and the drying efficiency is improved compared with traditional methods. At the same time, the integrated filtration system effectively intercepts particle overflow. With the compact structural design, it can maintain excellent drying performance while reducing the floor space. It is particularly suitable for modern pharmaceutical production lines with limited space. This solves the problem that the existing dexamethasone granule dryer adopts a single-layer static drying design, which is bulky and requires a lot of operating space. This not only seriously restricts the flexibility of the production workshop layout, but also significantly increases the construction and energy consumption costs of small and medium-sized pharmaceutical plants.

Claims

1. A drier for the production of dexamethasone, comprising a base (1); characterized in that: The base (1) is provided with a drying assembly at the upper end, the drying assembly comprises a connecting plate (21), a barrel (22), a supporting block (23), a hot air machine (24), a connecting pipe (25), an air outlet (26), a rotating rod (27), a stirring frame (28), an air outlet (29) and a filter plate (210), the rear end of the base (1) is connected with the connecting plate (21), the upper side of the front end of the connecting plate (21) is connected with the barrel (22), the left end of the base (1) is connected with the supporting block (23), the top of the supporting block (23) is connected with the hot air machine (24), the hot air machine (24) is connected with an external power supply, the right end of the hot air machine (24) extends to the inside of the barrel (22) and is connected with the connecting pipe (25), a plurality of air outlets (26) are formed at equal intervals in the right end of the connecting pipe (25), the inside of the barrel (22) is rotatably connected with the rotating rod (27), a plurality of stirring frames (28) are connected at equal intervals on the outer end of the rotating rod (27), the top of the barrel (22) is provided with the air outlet (29), the air outlet (29) is connected with the barrel (22), and the top of the air outlet (29) is connected with the filter plate (210).

2. The drier for producing dexamethasone according to claim 1, characterized by: The lower side of the front end of the barrel (22) is connected with a rotating shaft (31), and the front end of the rotating shaft (31) is connected with a knob (32).

3. The drier for producing dexamethasone according to claim 2, characterized by: The outer end of the rotating shaft (31) is connected with an arc plate (33), and the arc plate (33) is matched with the barrel (22).

4. The drier for producing dexamethasone according to claim 3, characterized by: The right end of the barrel (22) is connected with a fixed block (34), and the right end of the fixed block (34) is connected with a rotating knob (35).

5. The drier for producing dexamethasone according to claim 4, characterized by: The outer end of the rotating knob (35) is connected with a baffle (36), the left end of the baffle (36) is connected with a blocking block (37), and the blocking block (37) is movably connected with the arc plate (33).

6. The drier for producing dexamethasone according to claim 5, characterized by: The top left side of the barrel (22) is connected with a feeding port (38), and the feeding port (38) is connected with the barrel (22).

7. The drier for producing dexamethasone according to claim 6, characterized by: The top of the feeding port (38) is slidably connected with a cover plate (39), and the top of the cover plate (39) is connected with a push plate (310).