Drying device for processing medicinal materials
By using a multi-layer air supply system and a temperature-controlled drying device, the problems of uneven airflow and incomplete drying of medicinal materials in traditional drying devices have been solved, achieving efficient and uniform drying of medicinal materials and self-cleaning of the equipment, thereby improving the quality and safety of medicinal materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN JIATAI PHARM CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional air-drying equipment has a simple structure and a single air supply system, which leads to uneven airflow distribution in the drying chamber, incomplete drying of medicinal materials, potential drug safety hazards, and complicated cleaning and maintenance, and easy residue of medicinal materials to breed bacteria.
The design incorporates a multi-layered air supply system, combining multiple hot air blowers and temperature sensors. It utilizes staggered conveyor belts and baffles to guide airflow, achieving uniform drying of medicinal materials. The conveyor belts are self-cleaned via scrapers.
It improves the efficiency and effectiveness of drying medicinal materials, ensures the quality of medicinal materials, prevents loss of medicinal properties, simplifies equipment cleaning and maintenance, and reduces the risk of bacterial growth.
Smart Images

Figure CN224365259U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medicinal material processing technology, and in particular to an air-drying device for medicinal material processing. Background Technology
[0002] Medicinal herb processing is a crucial step in treating natural medicinal raw materials through physical, chemical, or biological methods to ensure they meet pharmaceutical standards. This includes processes such as washing and screening to remove mud, non-medicinal parts, or toxic components, ensuring medication safety. Drying and processing methods inhibit microbial growth and enzyme activity, preventing the degradation or loss of active ingredients. Among these methods, air drying is one of the most important methods for drying medicinal herbs. It involves slowly evaporating moisture through natural or temperature-controlled airflow. Compared to sun exposure or high-temperature drying, air drying reduces problems such as surface cracking and discoloration, maintaining the integrity of the appearance and its commercial value.
[0003] Despite the existence of various air-drying equipment, many shortcomings still exist. Traditional air-drying devices have simple structures and single air supply systems, resulting in uneven airflow distribution within the drying chamber and dead zones in some areas. When the material layer is too thick, poor ventilation of the bottom layer of medicinal materials can easily lead to localized overheating or excessive humidity, resulting in incomplete drying of the medicinal materials, bacterial growth, and mold reproduction, causing fermentation or rot of the medicinal materials, reducing their functionality, and even posing drug safety hazards. It also makes equipment cleaning and maintenance complicated, and there is a potential threat of residual medicinal residues breeding bacteria.
[0004] Therefore, in view of the problems of the simple structure and single air supply system of the above-mentioned traditional air drying device, which leads to uneven airflow distribution in the drying chamber, incomplete drying of medicinal materials, reduced functionality of medicinal materials, and even potential drug safety hazards, as well as complicated equipment cleaning and maintenance and the potential threat of residual medicinal residues breeding bacteria, a medicinal material processing air drying device with multi-layer air supply and multiple sensors to control temperature can be designed. Utility Model Content
[0005] In order to overcome the problems of traditional air drying equipment having a simple structure and a single air supply system, resulting in uneven airflow distribution in the drying chamber, incomplete drying of medicinal materials, reduced functionality of medicinal materials, and even potential drug safety hazards, as well as complicated equipment cleaning and maintenance, and easy residue of medicinal materials to breed bacteria.
[0006] The technical solution of this utility model is as follows: a drying device for processing medicinal materials, including a housing; and a hot air blower. Several hot air blowers are fixedly connected to the outside of the housing, and the hot air blowers are arranged alternately from top to bottom. The output end of the hot air blower is connected to an air supply pipe. Several nozzles are connected to the air supply pipe, and the nozzles spray air towards a baffle plate. The baffle plate is arranged in an arc shape above the conveyor belt. Several conveyor belts are provided, and the conveyor belts are arranged alternately from top to bottom. A drive shaft is sleeved on the outside of the higher end of the conveyor belt, and a driven shaft is sleeved on the outside of the lower end of the conveyor belt. One end of the drive shaft is fixedly connected to the output end of a motor, and the other end of the drive shaft is rotatably connected to the housing. One end of the driven shaft is rotatably connected to a turntable, and the other end of the driven shaft is rotatably connected to the housing.
[0007] Preferably, when the medicinal materials enter the box, they fall onto the conveyor belt under gravity. The motor outputs torque, causing the drive shaft to rotate, which in turn drives the conveyor belt mounted on the outside of the drive shaft to rotate. The driven shaft also rotates on the turntable, conveying the medicinal materials. The conveyor belt is arranged at an angle. When the medicinal materials reach the end of the conveyor belt, they automatically fall into the next layer under gravity. While conveying the medicinal materials, a hot air blower provides negative pressure to generate a hot airflow. The hot airflow is delivered to the nozzles through the air duct. The nozzles blow the hot air towards the baffle plate, which guides the direction of the airflow, so that the hot air blows onto the medicinal materials on the conveyor belt, drying each layer of medicinal materials.
[0008] Preferably, the fixed end of the motor is fixedly connected to the inside of the housing, and the turntable is fixedly connected to the same side of the housing where the motor is located.
[0009] Preferably, a baffle plate is provided below the lower end of the conveyor belt. There are two baffle plates, and the two baffle plates are fixedly connected inside the box.
[0010] Preferably, a temperature sensor is fixedly connected above the baffle plate, and the temperature sensor is electrically connected to a hot air blower. There are two temperature sensors, and the temperature sensor model is CWDZ11.
[0011] Preferably, the wind baffle is fixedly connected to the inside of the box, and there are two wind baffles, which are located diagonally above the two baffles.
[0012] Preferably, a connecting frame is fixedly connected above the wind deflector, and a scraper is fixedly connected above the connecting frame, with the scraper in contact with the higher end of the conveyor belt.
[0013] Preferably, a support frame is fixedly connected to the outside of the box, an inlet is provided at the top of the box, an outlet is provided at the bottom of the box, and a collection box is provided below the outlet.
[0014] The beneficial effects of this utility model are:
[0015] The system employs a multi-layered conveyor belt and multiple hot air blowers to simultaneously dry the medicinal herbs during transport. As the herbs flow down layer by layer under gravity, they are evenly separated, preventing excessive accumulation and ensuring the bottom layer remains dry. This results in higher drying efficiency and better drying effects. The hot air blowers utilize baffles to guide airflow, preventing direct hot air from damaging the herbs and ensuring proper air circulation. Multiple temperature sensors monitor the temperature of the herbs and control the hot air blowers to achieve optimal drying temperatures. Real-time monitoring of the internal environment ensures higher quality dried herbs. Furthermore, a scraper enables the conveyor belt to self-clean, facilitating cleaning and maintenance, preventing clogging, and improving overall efficiency. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model.
[0017] Figure 2 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.
[0018] Figure 3 The diagram shown is a schematic representation of the conveyor belt movement structure of this utility model.
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the hot air blower of this utility model;
[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the scraper of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Hot air blower; 3. Air duct; 4. Nozzle; 5. Motor; 6. Driven shaft; 7. Turntable; 8. Driven shaft; 9. Conveyor belt; 10. Support frame; 11. Baffle plate; 12. Baffle plate; 13. Connecting frame; 14. Scraper; 15. Temperature sensor; 16. Inlet; 17. Outlet; 18. Collection box. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5This utility model provides an embodiment: a drying device for processing medicinal materials, including a housing 1; and a hot air blower 2. A plurality of hot air blowers 2 are fixedly connected to the outer side of the housing 1, arranged alternately from top to bottom. The output end of each hot air blower 2 is connected to an air supply pipe 3. A plurality of nozzles 4 are connected to the air supply pipe 3, with the nozzles 4 spraying air towards a baffle plate 12. The baffle plate 12 is arc-shaped and positioned above a conveyor belt 9. A plurality of conveyor belts 9 are arranged alternately from top to bottom. The conveyor belt 9 has a drive shaft 6 mounted on the outer side of its higher end and a driven shaft 8 mounted on the outer side of its lower end. One end of the drive shaft 6 is fixedly connected to the output end of a motor 5, and the other end is rotatably connected to a housing 1. The driven shaft 8 is rotatably connected to a turntable 7, and the other end is also rotatably connected to the housing 1. When the medicinal materials enter the housing 1, they fall onto the conveyor belt 9 under gravity. The motor 5 outputs torque, causing the drive shaft 6 to rotate, thus driving the driven shaft 6 mounted on the drive shaft 9. The conveyor belt 9 on the outer side of shaft 6 rotates, and the driven shaft 8 also rotates on the turntable 7 to transport the medicinal materials. The conveyor belt 9 is arranged at an angle. When the medicinal materials move to the end of the conveyor belt 9, they automatically fall to the next layer under the action of gravity. At the same time as transporting the medicinal materials, the hot air blower 2 provides negative pressure to generate a hot air flow. The hot air flow is transported to the nozzle 4 through the air duct 3. The nozzle 4 blows the hot air towards the baffle plate 12. The baffle plate 12 guides the direction of the air flow, so that the hot air blows onto the medicinal materials on the conveyor belt 9. The herbs in the first layer are air-dried. The fixed end of the motor 5 is fixedly connected to the inside of the box 1. The turntable 7 is fixedly connected to the same side of the box 1 where the motor 5 is located. The motor 5 serves as the power source and is used to output torque. The turntable 7 is used to rotate. There are two baffle plates 11 below the lower end of the conveyor belt 9. The two baffle plates 11 are fixedly connected to the inside of the box 1. When the herbs fall from the upper layer to the lower layer, the baffle plates 11 guide the falling herbs so that the herbs are transported along a predetermined route.
[0024] Please see Figures 1-5In this embodiment, a temperature sensor 15 is fixedly connected above the baffle plate 11. The temperature sensor 15 is electrically connected to the hot air blower 2. There are two temperature sensors 15, and the model of the temperature sensor 15 is CWDZ11. When the medicinal material falls onto the baffle plate 11, the temperature sensor 15 detects the temperature of the medicinal material in real time. If the temperature is too high, the hot air blower 2 is controlled to lower the temperature; if the temperature is too low, the hot air blower 2 is controlled to raise the temperature. Two baffle plates 12 are fixedly connected to the inside of the housing 1. The two baffle plates 12 are located diagonally above the two baffle plates 11. The baffle plates 12 guide the airflow direction, so that the hot air blows onto the medicinal material on the conveyor belt 9. Above the baffle plates 12 A connecting frame 13 is fixedly connected, and a scraper 14 is fixedly connected above the connecting frame 13. The scraper 14 contacts the higher end of the conveyor belt 9. The scraper 14 is positioned below the conveyor belt 9 to scrape off the medicinal materials that are attached to the conveyor belt 9 and have not fallen off, so as to avoid repeated drying and to clean the surface of the conveyor belt 9. A support frame 10 is fixedly connected to the outside of the box 1. An inlet 16 is provided at the top of the box 1, and an outlet 17 is provided at the bottom of the box 1. A collection box 18 is provided below the outlet 17. The box 1 is fixed by the support frame 10. The staff puts the washed medicinal materials into the box 1 through the inlet 16. The medicinal materials fall automatically from the outlet 17 and are collected by the collection box 18 below.
[0025] During operation, workers feed the cleaned medicinal herbs into the housing 1 through the inlet 16. The herbs automatically fall from the outlet 17 and, under gravity, land on the conveyor belt 9. The motor 5 outputs torque, causing the drive shaft 6 to rotate, which in turn drives the conveyor belt 9, which is mounted on the outside of the drive shaft 6, to rotate. The driven shaft 8 also rotates on the turntable 7, conveying the herbs. The conveyor belt 9 is inclined, so when the herbs reach the end of the conveyor belt 9, they fall from the upper layer to the lower layer. The baffle plate 11 guides the falling herbs, ensuring they are conveyed along a predetermined route. A scraper 14 is also used to scrape off any herbs adhering to the conveyor belt 9 that have not fallen off, preventing repeated drying. The surface of the conveyor belt 9 is also cleaned. While conveying the medicinal materials, the hot air blower 2 provides negative pressure to generate hot air flow. The hot air flow is delivered to the nozzle 4 through the air duct 3. The nozzle 4 blows the hot air towards the baffle plate 12. The baffle plate 12 guides the direction of the air flow, so that the hot air blows onto the medicinal materials on the conveyor belt 9, and the medicinal materials on each layer are dried. When the medicinal materials fall onto the baffle plate 11, the temperature sensor 15 detects the temperature of the medicinal materials in real time. If the temperature is too high, the hot air blower 2 is controlled to lower the temperature. If the temperature is too low, the hot air blower 2 is controlled to raise the temperature. When the conveying is completed, the drying of the medicinal materials is also completed at the same time. The medicinal materials automatically fall from the discharge port 17 and are collected by the collection box 18 below.
[0026] Through the above steps, a multi-layer conveyor belt 9 and multiple hot air blowers 2 are set up to work together. While conveying the medicinal materials, they are simultaneously dried. As the materials flow down layer by layer under gravity, they are evenly separated, preventing excessive accumulation and ensuring the bottom layer is dried properly. This results in higher drying efficiency and better drying effect. Furthermore, the hot air blowers 2 utilize baffles 12 to guide the airflow, preventing direct hot air from blowing onto the materials and losing their medicinal properties. This also achieves airflow circulation for drying the materials. Multiple temperature sensors 15 are used to monitor the temperature of the medicinal materials. The temperature of the hot air blower 2 is controlled and adjusted to the optimal temperature for drying medicinal materials. The environment inside the chamber 1 is monitored in real time to improve the quality of the dried medicinal materials. The scraper 14 is used to achieve the self-cleaning function of the conveyor belt 9, which makes it easier to clean and maintain the device, prevents blockage, and improves work efficiency. This solves the problems of traditional air drying devices with simple structure and single air supply system, which lead to uneven airflow distribution in the drying chamber, incomplete drying of medicinal materials, reduced functionality of medicinal materials, and even potential drug safety hazards. It also makes equipment cleaning and maintenance complicated and easily leaves behind medicinal residues that can breed bacteria.
Claims
1. A drying device for processing medicinal materials, comprising a box body (1); characterized in that: Further include hot air blower (2), the box (1) outside is fixedly connected with a plurality of hot air blowers (2), a plurality of hot air blowers (2) are staggered from top to bottom, the output end of hot air blower (2) and the pipeline connection of air conveying pipe (3), air conveying pipe (3) pipeline connection has a plurality of nozzles (4), nozzle (4) jet direction is towards the wind baffle (12), the wind baffle (12) is arranged in the arc shape above the conveying belt (9), the conveying belt (9) is equipped with a plurality of, a plurality of conveying belts (9) are staggered from top to bottom, the higher one end outside of conveying belt (9) is sleeved with driving shaft (6), the lower one end outside of conveying belt (9) is sleeved with driven shaft (8), the output end of motor (5) is fixedly connected with one end of driving shaft (6), the other end of driving shaft (6) is rotatably connected with box (1), one end of driven shaft (8) is rotatably connected with rotary table (7), the other end of driven shaft (8) is rotatably connected with box (1).
2. The medicinal material processing and drying device according to claim 1, characterized in that: The fixed end of motor (5) is fixedly connected to the inner side of box (1), and rotary table (7) is fixedly connected to the same side of the box (1) with motor (5) inside.
3. The medicinal material processing and drying device according to claim 1, characterized in that: The lower end of the conveying belt (9) is provided with a baffle (11), and the baffle (11) is provided with two, and the two baffles (11) are fixedly connected inside the box (1).
4. The medicinal material processing and drying apparatus according to claim 1, characterized in that: The temperature sensor (15) is fixedly connected above the baffle (11), the temperature sensor (15) is electrically connected with the hot air blower (2), the temperature sensor (15) is provided with two, and the temperature sensor (15) is CWDZ11 sensor.
5. The medicinal material processing and drying apparatus according to claim 1, wherein: The wind baffle (12) is fixedly connected to the inner side of the box (1), and the wind baffle (12) is provided with two, and the two wind baffles (12) are located obliquely above the two baffles (11).
6. The medicinal material processing and drying apparatus according to claim 1, wherein: The connecting frame (13) is fixedly connected above the wind baffle (12), the connecting frame (13) is fixedly connected with scraper (14) above, and the scraper (14) is in contact with the higher one end of the conveying belt (9) above.
7. The medicinal material processing and drying apparatus according to claim 1, wherein: The box (1) is fixedly connected with a support frame (10) outside, the box (1) is provided with a feeding port (16) above, the box (1) is provided with a discharge port (17) below, and the discharge port (17) is provided with a collecting box (18) below.