Rapid drying device for isatis root particles
By using a dual-chamber structure and combined heating method, the problem of incomplete drying of Isatis root granules was solved, achieving a highly efficient and thorough drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional drying equipment often causes the granules of Isatis indigotica to stick to the inner wall of the mixing chamber when drying granules, resulting in incomplete drying.
It adopts a dual-compartment structure, combining a primary drying chamber and a secondary drying chamber, and combines infrared heating and hot air treatment. It uses stirring blades and elastic scrapers to prevent sticking, and performs secondary drying through multi-layer inclined guide plates and PTC heaters.
This improved the completeness and efficiency of drying Isatis root granules, prevented granule sticking, and ensured the drying effect.
Smart Images
Figure CN224080671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, and in particular to a rapid drying device for Isatis indigotica granules. Background Technology
[0002] Drying is an important step in the preparation of traditional Chinese medicine granules. It is usually used to remove moisture from the granules to facilitate long-term storage while maintaining their medicinal efficacy. The key to the drying process is to select appropriate temperature, humidity, and time to ensure that the granules are dry without losing their active ingredients. Drying is a necessary process that requires a drying device.
[0003] In existing technologies, traditional drying devices typically heat and stir the Isatis root granules before using hot air to dry them. However, during the stirring process, the Isatis root granules may stick to the inner wall of the stirring chamber, resulting in incomplete drying. Therefore, we urgently need a rapid drying device for Isatis root granules. Utility Model Content
[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: A rapid drying device for Isatis tinctoria granules includes an outer shell. Inside the outer shell, a primary drying chamber and a secondary drying chamber are arranged sequentially from top to bottom. A hopper is provided between the primary and secondary drying chambers. The primary drying chamber is equipped with a drying assembly. A through groove is formed at the upper end of the secondary drying chamber. The lower end of the hopper is inserted into the through groove at the upper end of the secondary drying chamber. A sealing plate is movably arranged between the primary drying chamber and the hopper, located directly below the primary drying chamber. A discharge port is formed at the center of the lower surface of the outer shell, and the discharge port communicates with the interior of the secondary drying chamber. A feed inlet is fixedly provided on one side of the top of the outer shell, and a sealing cover is movably installed at the upper end of the feed inlet. Support legs are fixedly installed on both sides of the lower end of the outer shell.
[0005] As an improvement to the above technical solution, the primary drying chamber, the feeding hopper, and the secondary drying chamber are all fixedly connected to the inner wall of the outer shell.
[0006] As an improvement to the above technical solution, the sealing plate is movably inserted between the primary drying chamber and the discharge hopper through one side of the outer shell, and a handle is fixedly installed at one end of the sealing plate on the outside of the outer shell. A sealing gasket is fitted onto the lower outer surface of the primary drying chamber.
[0007] As an improvement to the above technical solution, the drying assembly includes a motor fixedly installed on the top of the outer shell. The output shaft of the motor passes through the outer shell and is fixedly connected to a rotating rod. The rotating rod is located inside the primary drying chamber. Several equally spaced stirring blades are fixedly installed on the outer surface of the rotating rod. An elastic scraper is fixedly installed at the end of each stirring blade. The elastic scraper is in contact with the inner wall of the primary drying chamber. A rubber pad is glued to the outer surface of the elastic scraper.
[0008] As an improvement to the above technical solution, a number of equally spaced infrared heating tubes are provided in the inner wall of the primary drying chamber, and the infrared heating tubes are arranged in a ring and embedded in the inner wall of the primary drying chamber.
[0009] As an improvement to the above technical solution, hot air ducts are provided on the outer surfaces of the upper two sides of the outer shell, and the hot air ducts penetrate the inner wall of the outer shell. Several ventilation holes are opened on the inner walls of both sides of the primary drying chamber. One end of the hot air duct that penetrates the outer shell is inserted into the interior of the ventilation hole. A circular filter screen is also fixedly installed inside the ventilation hole, and the circular filter screen is located on one side of the hot air duct. Several vent pipes are fixedly installed on the top of the outer shell. The vent pipes are connected to the interior of the primary drying chamber, and a circular filter screen is fixedly installed inside each vent pipe.
[0010] As an improvement to the above technical solution, the secondary drying chamber is provided with multiple layers of inclined guide plates, and the inclination angle of the guide plates is 25°. The guide plates are fixedly connected to the inner wall of the secondary drying chamber, and a PTC heater is embedded inside each guide plate. Symmetrically distributed guide plates are fixedly installed at the lower end of the interior of the secondary drying chamber. The guide plates are located directly below the guide plates, and the interiors of the two guide plates are connected to the discharge port.
[0011] The beneficial effects of this utility model are:
[0012] By sequentially arranging a primary drying chamber and a secondary drying chamber from top to bottom inside the outer casing, and installing a drying component inside the primary drying chamber, the Isatis root granules placed in the primary drying chamber can undergo initial drying treatment under the action of the drying component. After the initial drying treatment, they enter the secondary drying chamber for a second drying treatment, thereby further processing the Isatis root granules that need to be dried, increasing the completeness of drying the Isatis root granules in the overall device, and achieving high drying efficiency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a diagram showing the internal structure of the outer shell of this utility model;
[0015] Figure 3 This is a cross-sectional view of the present invention;
[0016] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0017] Reference numerals: 1. Outer shell; 11. Ventilation pipe; 12. Ventilation hole; 13. Circular filter screen; 2. Feed inlet; 21. Sealing cover; 3. Primary drying chamber; 31. Motor; 32. Rotating rod; 33. Stirring blade; 34. Elastic scraper; 341. Rubber pad; 35. Infrared heating tube; 4. Secondary drying chamber; 41. Guide plate; 42. PTC heater; 43. Material guide plate; 44. Through groove; 5. Discharge port; 6. Support leg; 7. Hopper; 8. Sealing plate; 81. Pull handle; 9. Hot air duct; 10. Sealing gasket. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.
[0019] Please see Figure 1-4 This utility model provides a technical solution: a rapid drying device for Isatis tinctoria granules, including an outer shell 1. Inside the outer shell 1, a primary drying chamber 3 and a secondary drying chamber 4 are arranged sequentially from top to bottom, and a hopper 7 is arranged between the primary drying chamber 3 and the secondary drying chamber 4. The primary drying chamber 3 is equipped with a drying component. The upper end of the secondary drying chamber 4 has a through groove 44. The lower end of the hopper 7 is inserted into the inside of the through groove 44 at the upper end of the secondary drying chamber 4. A sealing plate 8 is movably arranged between the primary drying chamber 3 and the hopper 7. The sealing plate 8 is located directly below the primary drying chamber 3. A discharge port 5 is opened in the middle of the lower surface of the outer shell 1 and is connected to the inside of the secondary drying chamber 4. A feed inlet 2 is fixedly arranged on one side of the top of the outer shell 1, and a sealing cover 21 is movably installed on the upper end of the feed inlet 2. Support legs 6 are fixedly installed on both sides of the lower end of the outer shell 1.
[0020] In this embodiment, a primary drying chamber 3 and a secondary drying chamber 4 are arranged sequentially from top to bottom inside the outer shell 1. A drying component is installed inside the primary drying chamber 3. Under the action of the drying component, the Isatis root granules placed in the primary drying chamber 3 can be dried for the first time. After the first drying is completed, they enter the secondary drying chamber 4 for a second drying process, thereby further processing the Isatis root granules that need to be dried. This increases the completeness of drying the Isatis root granules in the overall device and has a high drying efficiency.
[0021] Specifically, the primary drying chamber 3, the feeding hopper 7, and the secondary drying chamber 4 are all fixedly connected to the inner wall of the outer shell 1. The sealing plate 8 is inserted movably between the primary drying chamber 3 and the feeding hopper 7 through one side of the outer shell 1. A handle 81 is fixedly installed on one end of the sealing plate 8 located on the outside of the outer shell 1. A sealing gasket 10 is fitted onto the lower outer surface of the primary drying chamber 3.
[0022] Specifically, the drying assembly includes a motor 31 fixedly mounted on the top of the outer casing 1. The output shaft of the motor 31 passes through the outer casing 1 and is fixedly connected to a rotating rod 32, which is located inside the primary drying chamber 3. Several equally spaced stirring blades 33 are fixedly mounted on the outer surface of the rotating rod 32, and an elastic scraper 34 is fixedly mounted at the end of each stirring blade 33. The elastic scraper 34 contacts the inner wall of the primary drying chamber 3, and a rubber pad 341 is adhesively bonded to the outer surface of the elastic scraper 34. Several equally spaced infrared heating tubes 35 are arranged in a ring shape in the inner wall of the primary drying chamber 3. The outer shell 1 is fitted into the inner wall of the primary drying chamber 3. Hot air ducts 9 are provided on the upper two outer surfaces of the outer shell 1 and penetrate the inner wall of the outer shell 1. Several ventilation holes 12 are opened on the inner walls of the two sides of the primary drying chamber 3. One end of the hot air duct 9 that penetrates the outer shell 1 is inserted into the ventilation hole 12. A circular filter screen 13 is also fixedly installed inside the ventilation hole 12 and is located on one side of the hot air duct 9. Several air vents 11 are fixedly installed on the top of the outer shell 1. The air vents 11 are connected to the interior of the primary drying chamber 3 and a circular filter screen 13 is fixedly installed inside each air vent 11.
[0023] In this embodiment, a drying component is installed inside the primary drying chamber 3. Under the action of the drying component, when the Isatis root granules to be dried enter the primary drying chamber 3 through the feed inlet 2, the motor 31 is started first. Then, one end of the hot air duct 9 contacts the external hot air blower, and hot air enters the primary drying chamber 3 through the hot air duct 9. At the same time, the infrared heating tube 35 begins to radiate heat to the interior of the primary drying chamber 3. Driven by the motor 31, the rotating rod 32 begins to rotate, and the stirring blade 33 begins to stir the Isatis root granules entering the primary drying chamber 3, and stirs them with the infrared heating tube 35 and the hot air duct 9. The hot air entering the primary drying chamber 3 works in conjunction with the air to dry the Isatis root granules. The vent pipe 11 allows for exhaust. Meanwhile, the elastic scraper 34 at the end of the stirring blade 33 cleans the inner wall of the primary drying chamber 3 during the rotation of the stirring blade 33, preventing Isatis root granules from sticking to the inner wall. The stirring of the stirring blade 33 also prevents the Isatis root granules from sticking together. After the Isatis root granules have been dried in the primary drying chamber 3, the sealing plate 8 is opened, allowing the Isatis root granules to enter the secondary drying chamber 4 through the feed hopper 7.
[0024] Specifically, the secondary drying chamber 4 is equipped with multiple inclined guide plates 41 with an inclination angle of 25°. The guide plates 41 are fixedly connected to the inner wall of the secondary drying chamber 4, and each guide plate 41 is fitted with a PTC heater 42. The lower part of the interior of the secondary drying chamber 4 is fixedly installed with symmetrically distributed guide plates 43. The guide plates 43 are located directly below the guide plates 41, and the interiors of the two guide plates 43 are connected to the discharge port 5.
[0025] In this embodiment, when the Isatis root granules enter the secondary drying chamber 4, they pass sequentially on the surface of the guide plate 41. The PTC heater 42 installed inside the guide plate 41 heats the Isatis root granules passing on the surface of the guide plate 41, thereby drying the Isatis root granules again. The dried Isatis root granules then pass through the discharge port 5 via the guide plate 43, and the workers collect the dried Isatis root granules.
[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A rapid drying device for radix isatidis granules, comprising an outer housing (1), characterized in that: The inside of the shell body (1) is sequentially provided with a primary drying bin (3) and a secondary drying bin (4) from top to bottom, and a lower hopper (7) is arranged between the primary drying bin (3) and the secondary drying bin (4), the primary drying bin (3) is provided with a drying assembly, the upper end of the secondary drying bin (4) is provided with a through slot (44), the lower end of the lower hopper (7) is inserted into the inside of the through slot (44) provided at the upper end of the secondary drying bin (4), a sealing plate (8) is movably arranged between the primary drying bin (3) and the lower hopper (7), the sealing plate (8) is located directly below the primary drying bin (3), a discharge port (5) is formed in the middle of the lower surface of the shell body (1) and is connected with the inside of the secondary drying bin (4), a feeding port (2) is fixedly arranged on one side of the top of the shell body (1), a sealing cover (21) is movably arranged on the upper end of the feeding port (2), and supporting legs (6) are fixedly arranged on both sides of the lower end of the shell body (1).
2. The rapid drying device for isatis root granules according to claim 1, characterized in that: The primary drying bin (3), the lower hopper (7) and the secondary drying bin (4) are fixedly connected with the inner wall of the shell body (1).
3. The rapid drying device for isatis root granules according to claim 1, characterized in that: The sealing plate (8) is movably inserted between the primary drying bin (3) and the lower hopper (7) through one side of the shell body (1), one end of the sealing plate (8) located outside the shell body (1) is fixedly provided with a pull handle (81), and the lower end of the primary drying bin (3) is sleeved with a sealing gasket (10).
4. The rapid drying device for isatis root granules according to claim 1, characterized in that: The drying assembly comprises a motor (31) fixedly arranged on the top of the shell body (1), an output shaft of the motor (31) is fixedly connected with a rotating rod (32) penetrating through the shell body (1), the rotating rod (32) is located in the inside of the primary drying bin (3), a plurality of stirring blades (33) are fixedly arranged on the outer surface of the rotating rod (32) at equal intervals, an elastic scraper (34) is fixedly arranged on the end of each stirring blade (33), the elastic scraper (34) is in contact with the inner wall of the primary drying bin (3), and a rubber pad (341) is gluedly connected to the outer surface of the elastic scraper (34).
5. The rapid drying device for isatis root granules according to claim 4, characterized in that: A plurality of infrared heating pipes (35) are arranged in the inner wall of the primary drying bin (3) at equal intervals, and the infrared heating pipes (35) are annularly arranged in the inner wall of the primary drying bin (3).
6. The rapid drying device for isatis root granules according to claim 5, characterized in that: Hot air pipes (9) are arranged on both sides of the upper end of the shell body (1) and penetrate through the inner wall of the shell body (1), a plurality of ventilation holes (12) are formed in the inner walls of both sides of the primary drying bin (3), one end of the hot air pipe (9) penetrating through the shell body (1) is inserted into the inside of the ventilation hole (12), a circular filter screen (13) is fixedly arranged in the inside of the ventilation hole (12), the circular filter screen (13) is located on one side of the hot air pipe (9), a plurality of air permeable pipes (11) are fixedly arranged on the top of the shell body (1), the air permeable pipes (11) are connected with the inside of the primary drying bin (3), and a circular filter screen (13) is fixedly arranged in the inside of each air permeable pipe (11).
7. The rapid drying device for isatis root granules according to claim 1, characterized in that: The inside of the secondary drying bin (4) is provided with multiple layers of inclined flow guide plates (41), and the inclined angle of the flow guide plates (41) is 25°, the flow guide plates (41) are fixedly connected with the inner wall of the secondary drying bin (4), and the inside of each flow guide plate (41) is embedded with a PTC heater (42), the inside lower end of the secondary drying bin (4) is fixedly installed with symmetrically distributed material guide plates (43), the material guide plates (43) are located directly below the flow guide plates (41), and the interiors of the two material guide plates (43) are communicated with the discharge port (5).