Tray dryer
Through the design of the tray dryer, the cooperation of strip air knife and rake leaves is used to solve the problem of uneven heating during the drying process of soft capsules, achieve uniform ventilation and drying, and improve production efficiency and product quality.
Patent Information
- Application Number
- CN202422756444.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In the prior art, the soft capsule drying process has problems such as uneven heating and air drying, which lead to hardening, adhesion and cracking of the capsule outer surface, and the drying cycle is long and the energy consumption is high.
The tray dryer uses the cooperation of strip air knife and rake leaves, and the hot air blown by the heating medium is preheated and blown by the centrifugal fan, combined with rotary stirring, to achieve uniform ventilation and drying of the capsules to avoid agglomeration.
The uniform drying of the capsules is achieved, the drying cycle is shortened, the energy consumption is reduced, and the adhesion and cracking of the capsules are avoided.
Smart Images
Figure CN223319493U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capsule production, in particular to a tray dryer. Background Art
[0002] Capsules are prepared by compression or drop-making methods. After forming, the capsules need to be dried. The moisture contained in the capsule wall has a certain impact on the disintegration time of the drug. Since the main component of the soft capsule shell is gelatin, long-term heating above 40°C will accelerate the hydrolysis and breakage of the peptide chains in the gelatin molecules. Therefore, when drying the soft capsules, the heating temperature should not be too high and the drying intensity should not be too large. Therefore, the drying cycle of the soft capsules is long, the drying process consumes a lot of energy, and practical problems such as adhesion and rupture caused by improper drying conditions. In the production process of soft capsules, the final drying is an important process that affects its quality.
[0003] Currently, there is still a drying method for soft capsules placed in a tray by manual overturning, which easily causes uneven heating and drying of the capsules, resulting in partial hardening of the outer surface of the capsules. Utility Model Content
[0004] The utility model provides a tray dryer to solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tray dryer, comprising a casing, a reduction motor is installed on the top of the casing, a hollow rotating shaft is installed in the casing through a bearing, and the top end of the hollow rotating shaft is connected to the reduction motor through a coupling, a strip air knife is connected to the hollow rotating shaft, and a rake blade is installed on the rear side of the strip air knife, a rotary joint is installed at the bottom end of the hollow rotating shaft, a centrifugal fan is installed on the outside of the casing, and the inlet end of the centrifugal fan extends into the casing, and its outlet end is connected to the rotary joint through a hose, small discs and large discs are distributed in the casing, and the lower parts of the small discs and the large discs are provided with heating interlayers, and pipe interfaces are provided on both sides of the heating interlayer, and the upper parts of the small discs and the large discs are provided with loading troughs, and discharge ports are provided at the edge of the loading trough of the small disc and the center of the loading trough of the large disc.
[0006] Furthermore, the top of the casing is provided with a feeding port and a moisture discharge port, and the bottom is provided with a discharge port.
[0007] Furthermore, the bottoms of the loading troughs of the small disc and the large disc are both inclined surfaces, and the small disc and the large disc are arranged in an interlaced and stacked manner.
[0008] Furthermore, the small disc and the large disc are both provided with through holes at their centers, and are movably sleeved on the hollow rotating shaft through the through holes.
[0009] Furthermore, the interface end of the strip-shaped air knife is connected to the hollow rotating shaft, and the strip-shaped air knife is located above the loading trough.
[0010] Furthermore, the pipe interface extends outward from the side wall of the casing, and the discharge openings are arranged in a ring shape.
[0011] Compared with the prior art, the present invention provides a tray dryer with the following beneficial effects:
[0012] This tray dryer introduces heating medium into the small disc and the large disc for preheating. After the temperature inside the casing reaches a suitable temperature, the centrifugal fan draws hot air from the casing to the strip air knife, which sprays an air flow barrier to the small disc and the large disc, so that the moisture in the capsules on them evaporates quickly and is discharged. At the same time, the reduction motor drives the hollow shaft to rotate, and the harrows stir the capsules so that the capsules can be evenly ventilated and dried. The cooperation of the strip air knife and the harrows can enhance the drying effect of the capsules and prevent agglomeration. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 This is a top view of the small disc of the utility model;
[0015] Figure 3 This is a top view of the large disc of the utility model.
[0016] In the figure: 1. Casing; 2. Reducer motor; 3. Hollow shaft; 4. Strip air knife; 5. Rake blade; 6. Rotary joint; 7. Centrifugal fan; 8. Small disc; 9. Large disc; 10. Heating interlayer; 11. Pipe interface; 12. Loading trough; 13. Discharge port; 14. Feeding port; 15. Dehumidification port; 16. Discharge port; 17. Through hole. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figure 1-Figure 3The utility model discloses a tray dryer, comprising a casing 1, a reduction motor 2 is installed on the top of the casing 1, a hollow rotating shaft 3 is installed in the casing 1 through a bearing, and the top end of the hollow rotating shaft 3 is connected to the reduction motor 2 through a coupling, a strip air knife 4 is connected to the hollow rotating shaft 3, and a rake 5 is installed on the rear side of the strip air knife 4, a rotary joint 6 is installed at the bottom end of the hollow rotating shaft, a centrifugal fan 7 is installed on the outside of the casing 1, and the inlet end of the centrifugal fan 7 extends into the casing 1, and the outlet end thereof is connected to the rotary joint 6 through a hose, small discs 8 and large discs 9 are distributed in the casing 1, and the lower parts of the small discs 8 and the large discs 9 are provided with a heating interlayer 10, and pipe interfaces 11 are provided on both sides of the heating interlayer 10, Heating medium is introduced into the small disc 8 and the large disc 9 respectively for preheating. After the temperature in the casing 1 reaches a suitable temperature, the centrifugal fan 7 draws hot air from the casing 1 to the strip air knife 4, and an air flow barrier is sprayed through the strip air knife 4 to blow to the small disc 8 and the large disc 9, so that the moisture in the capsules thereon evaporates quickly and is discharged. At the same time, the reduction motor 2 drives the hollow shaft 3 to rotate, thereby stirring through the rake leaves 5, so that the capsules can be evenly ventilated and dried. The cooperation of the strip air knife 4 and the rake leaves 5 can enhance the drying effect of the capsules, and is less likely to agglomerate. The upper parts of the small disc 8 and the large disc 9 are both provided with a loading trough 12, and a discharge port 13 is provided at the edge of the loading trough 12 of the small disc 8 and the center of the loading trough 12 of the large disc 9.
[0019] Specifically, a feeding port 14 and a moisture discharge port 15 are respectively provided on the top of the casing 1 , and a discharge port 16 is provided on the bottom.
[0020] In this embodiment, the feeding port 14 is used for feeding materials, the dehumidification port 15 is used for discharging moisture, and the materials are discharged from the discharging port 16 after being dried.
[0021] Specifically, the bottoms of the loading troughs 12 of the small disc 8 and the large disc 9 are both inclined surfaces, and the small disc 8 and the large disc 9 are arranged in an interlaced and stacked manner.
[0022] In this embodiment, if Figure 1 As shown in the figure, after the material is put in, it falls on the small disc 8 on the top layer, and the material is dried with the cooperation of the self-heating small disc 8, the strip air knife 4 and the rake 5. Since the bottom of the loading trough 12 is an inclined surface, during the stirring process of the rake 5, the material slides to the lowest end of the inclined surface under the influence of gravity, and then flows out from the discharge port 13 at the edge of the small disc 8, and falls on the large disc 9 below to continue drying. During the stirring process of the rake 5, the material slides to the lowest end of the inclined surface under the influence of gravity, and then flows out from the discharge port 13 in the middle of the large disc 9, and the flow is circulated like this.
[0023] Specifically, a through hole 17 is provided at the center of the small disc 8 and the large disc 9 , and the small disc 8 and the large disc 9 are movably sleeved on the hollow shaft 3 through the through hole 17 .
[0024] In this embodiment, the through hole 17 is a relief structure so that the small disc 8 , the large disc 9 and the hollow shaft 3 can be installed in the housing 1 .
[0025] Specifically, the interface end of the strip-shaped air knife 4 is connected to the hollow rotating shaft 3 , and the strip-shaped air knife 4 is located above the loading trough 12 .
[0026] In this embodiment, the strip air knife 4 is a device specially designed to blow out strong and high-speed airflow. The air enters the air knife high-pressure chamber through the air inlet of the air knife. After the air flow passes through the narrow and thin nozzle, a balanced airflow sheet is formed in the length direction of the air knife.
[0027] Specifically, the pipe interface 11 extends outward from the side wall of the casing 1, and the discharge ports 13 are arranged in a ring shape.
[0028] In this embodiment, the small disc 8 and the large disc 9 are connected to the heating system through the pipe interface 11 , so that a heating medium such as hot water or hot steam is introduced into the heating interlayer 10 .
[0029] During use, heating medium is introduced into the small disc 8 and the large disc 9 respectively for preheating. After the temperature in the casing 1 reaches the appropriate temperature, the centrifugal fan 7 draws hot air from the casing 1 to the strip air knife 4, and an air flow barrier is sprayed through the strip air knife 4 to blow towards the small disc 8 and the large disc 9. After the material is put into the casing 1, it falls on the small disc 8 on the top layer and is dried with the cooperation of the self-heating small disc 8, the strip air knife 4 and the rake 5. Since the bottom of the loading trough 12 is an inclined surface, during the stirring process of the rake 5, the material slides to the lowest end of the inclined surface under the influence of gravity, and then flows out from the discharge port 13 at the edge of the small disc 8 and falls on the large disc 9 below to continue drying. During the stirring process of the rake 5, the material slides to the lowest end of the inclined surface under the influence of gravity, and then flows out from the discharge port 13 in the middle of the large disc 9. The flow circulates like this and is finally discharged from the discharge port 16.
[0030] To sum up, the tray dryer introduces heating medium into the small disc 8 and the large disc 9 for preheating respectively. After the temperature in the casing 1 reaches a suitable temperature, the centrifugal fan 7 draws hot air from the casing 1 to the strip air knife 4, and the strip air knife 4 sprays an air flow barrier to blow towards the small disc 8 and the large disc 9, so that the moisture in the capsules thereon evaporates quickly and is discharged. At the same time, the reduction motor 2 drives the hollow shaft 3 to rotate, thereby stirring through the rake leaves 5, so that the capsules can be evenly ventilated and dried. The cooperation of the strip air knife 4 and the rake leaves 5 can enhance the drying effect of the capsules, and is less likely to cause agglomeration.
[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tray dryer, comprising a housing (1), characterized in that: A reduction motor (2) is installed on the top of the housing (1), a hollow rotating shaft (3) is installed in the housing (1) through a bearing, and the top end of the hollow rotating shaft (3) is connected to the reduction motor (2) through a coupling, a strip air knife (4) is connected to the hollow rotating shaft (3), and a rake (5) is installed on the rear side of the strip air knife (4), a rotary joint (6) is installed on the bottom end of the hollow return shaft, and a centrifugal fan (7) is installed on the outside of the housing (1), and the inlet end of the centrifugal fan (7) extends into the housing (1). , its outlet end is connected to the rotary joint (6) through a hose, a small disc (8) and a large disc (9) are distributed in the housing (1), and the lower parts of the small disc (8) and the large disc (9) are provided with a heating interlayer (10), and both sides of the heating interlayer (10) are provided with a pipe interface (11), and the upper parts of the small disc (8) and the large disc (9) are provided with a loading trough (12), and a discharge port (13) is provided at the edge of the loading trough (12) of the small disc (8) and the center of the loading trough (12) of the large disc (9).
2. A tray dryer according to claim 1, characterized in that: The top of the casing (1) is respectively provided with a feeding port (14) and a moisture discharge port (15), and the bottom is provided with a discharge port (16).
3. The tray dryer according to claim 1, characterized in that: The bottoms of the material loading troughs (12) of the small disc (8) and the large disc (9) are both inclined surfaces, and the small disc (8) and the large disc (9) are arranged in an interlaced and superimposed manner.
4. The tray dryer according to claim 1, characterized in that: The small disc (8) and the large disc (9) are both provided with a through hole (17) at their centers, and are movably sleeved on the hollow rotating shaft (3) through the through hole (17).
5. The tray dryer according to claim 1, characterized in that: The interface end of the strip-shaped air knife (4) is connected to the hollow rotating shaft (3), and the strip-shaped air knife (4) is located above the material loading trough (12).
6. The tray dryer according to claim 1, characterized in that: The pipe interface (11) extends outward from the side wall of the casing (1), and the discharge openings (13) are arranged in a ring shape.