Dynamic pneumatic dryer for traditional Chinese medicine decoction pieces

By designing a dynamic airflow dryer of Chinese herbal medicines, using structures such as roller drums and hot air partition boards, uniform drying of Chinese herbal medicines at moderate temperatures is achieved, solving the problems of long drying time and ingredient damage in the existing technology, and improving the drying efficiency and quality.

CN222438358UActive Publication Date: 2025-02-07NANCHANG INNOVATION PHARMACEUTICAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202420701248.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-08
Publication Date
2025-02-07
Estimated Expiration
2034-04-08

AI Technical Summary

Technical Problem

The existing steam-heated hot air circulation oven used for drying Chinese herbal medicines has defects such as air flow not dynamic, rapid saturation of water vapor concentration, loss of diffusion power, resulting in long drying time, destruction of volatile and thermally sensitive components, and changes in medicinal properties.

Method used

A dynamic airflow dryer of traditional Chinese herbal medicine tablets is designed, using a drum structure and a hot air partition plate and a fence plate to generate hot air flow through an electric heater and a booster fan. The drum rotation and airflow ventilation are used to achieve dynamic circulation of air flow to ensure that The Chinese herbal tablets are dried evenly at moderate temperature.

Benefits of technology

It realizes rapid and even drying of traditional Chinese herbal medicines, maintains the volatile and thermally sensitive ingredients of the medicines, avoids changes in medicinal properties, has high drying efficiency and good quality, and has automated operation and high practical value.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222438358U_ABST
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Abstract

The utility model discloses a traditional Chinese medicine decoction piece dynamic airflow dryer which comprises a machine box, a rolling barrel and a supporting frame are arranged in the machine box, the rolling barrel is located on the upper portion of the supporting frame, a rotatable bottom plate is arranged at the bottom of the machine box, a feeding cover and a discharging cover are arranged at the two ends of the machine box respectively, an air cylinder is arranged on the upper portion of the rotatable bottom plate, and the upper end of the air cylinder is fixedly connected with the supporting frame. The lower end is rotationally connected with the rotatable bottom plate; an upper air outlet pipe is arranged at the top of the case; the supporting frame is provided with an upper hot air partition plate, a lower hot air partition plate and a surrounding plate, the upper hot air partition plate and the lower hot air partition plate are both in sliding fit with the rolling barrel, the surrounding plate is located between the upper hot air partition plate and the lower hot air partition plate and located on the lower portion of the rolling barrel, and the rolling barrel is provided with evenly-distributed air inlet channels. The supporting frame is provided with a motor, a lower air outlet pipe and an air inlet pipe. According to the dynamic airflow dryer for the traditional Chinese medicine decoction pieces, hot airflow of the rolling barrel can enter and exit, heat exchange and moisture removal are fast, the drying temperature and air pressure are natural and appropriate, the drying quality of the decoction pieces is good, automatic operation is achieved, efficiency is high, and high practical value and popularization value are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of dynamic airflow dryers for Chinese medicinal slices, in particular to a dynamic airflow dryer for Chinese medicinal slices. Background Art

[0002] At present, most of the Chinese herbal medicines in pharmaceutical factories are dried in steam-heated hot air circulation ovens. In this equipment, the airflow only circulates in the oven. Due to the small space in the oven, the water vapor concentration in the air quickly reaches saturation. Once saturated, the vaporized water vapor on the slices cannot diffuse. In other words, it loses the power of diffusion. Although it also has a dehumidification function, dehumidification also removes the temperature at the same time. Therefore, the cut Chinese herbal medicines can only be baked quietly for 6 or 7 hours in a high temperature environment to become dry. Some of them change color, and some become "cooked". In this way, it is inevitable that the volatile components and heat-sensitive components contained in the dried Chinese herbal medicines will be destroyed, and they may even be cooked and change their medicinal properties. For example, raw rhubarb becomes cooked rhubarb... It can be seen that there are obvious defects in drying Chinese herbal medicines in steam-heated hot air circulation ovens. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a dynamic airflow dryer for Chinese herbal medicine slices.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is a dynamic airflow dryer for Chinese herbal medicine slices: comprising a chassis, a drum and a support frame are arranged in the chassis, the drum is located on the upper part of the support frame, a rotatable bottom plate is arranged at the bottom of the chassis, a feed cover and a discharge cover are arranged at both ends of the chassis, a cylinder is arranged at the upper part of the rotatable bottom plate, the upper end of the cylinder is fixedly connected to the support frame, and the lower end is rotatably connected to the rotatable bottom plate; an upper air outlet pipe is arranged at the top of the chassis;

[0005] The support frame is provided with an upper hot air partition plate, a lower hot air partition plate and a surrounding plate, the upper hot air partition plate and the lower hot air partition plate are both slidably matched with the drum, the surrounding plate is located between the upper hot air partition plate and the lower hot air partition plate and at the bottom of the drum, and the drum is provided with evenly distributed air inlets;

[0006] The support frame is provided with a motor, a lower air outlet pipe and an air inlet pipe. The motor is connected to the sprocket at the end of the drum through a chain. An electric heater is provided in the air inlet pipe, and the air inlet pipe is connected to the booster fan. An air energy heat exchanger is provided next to the booster fan. The lower air outlet pipe and the upper port of the air inlet pipe are connected to the inside of the enclosure.

[0007] As an improvement, the drum is rotatably connected to the chassis via a plurality of support wheels at both ends, the support wheels are rollingly matched with the roller rings of the drum, and the support frame is fixedly connected to the chassis.

[0008] As an improvement, the chassis is provided with a control panel, and the control panel is electrically connected to the motor, the cylinder, the electric heater, the booster fan, and the air energy heat exchanger.

[0009] As an improvement, there are two motors and two cylinders.

[0010] As an improvement, the upper hot air partition plate and the lower hot air partition plate have the same structure and are both rotatably connected to the seat plate, and the seat plate is fixedly connected to the support frame.

[0011] As an improvement, the rotating end of the rotatable bottom plate faces the discharge cover; and the sprocket faces the feed cover.

[0012] As an improvement, the feed cover and the discharge cover are both rotatably connected to the chassis.

[0013] As an improvement, the booster fan and air energy heat exchanger are arranged on the support plate, and the air energy heat exchanger is composed of a compressor, a surface cooler, and a condenser.

[0014] As an improvement, the air inlet duct includes a stainless steel plate and a stainless steel sintered mesh.

[0015] Compared with the prior art, the utility model has the following advantages: operate the control panel to start the dryer, open the feed cover, manually put the cut Chinese herbal medicine slices into the drum and then close the feed cover. Setting parameters: ①, the temperature is set at 40--60℃; ②, the humidity parameter after drying is 10-13℅; ③, the electric heating working time is set according to the actual situation (it will not overheat); ④, the drum speed is 3-5 rpm, start the drum to start drying. The hot air flow enters the enclosure and then enters the drum from the air inlet duct to dry the Chinese herbal medicine slices that are constantly rolling. The lower part of the drum is the hot air zone, and the upper part is relatively the cool air zone, so that the average temperature of the Chinese herbal medicine slices receiving the air flow during rolling is moderate. The lower air outlet duct and the upper air outlet duct are used for ventilation to maintain the natural stability of the air pressure inside the drum and avoid overheating. After the drying is completed, the cylinder lifts the chassis, and then the unloading cover is opened to unload.

[0016] The dynamic airflow dryer for Chinese herbal medicine slices can allow hot air to flow in and out of the drum, with fast heat exchange and moisture removal. The drying temperature and air pressure are naturally suitable, the slice drying quality is good, the operation is automatic, the efficiency is high, and it has high practical value and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a dynamic airflow dryer for Chinese herbal medicine slices with side panels removed.

[0018] Figure 2 The utility model discloses a discharging state diagram of a dynamic airflow dryer for Chinese herbal medicine slices with the side panel removed.

[0019] Figure 3 The utility model is a structural schematic diagram of a dynamic airflow dryer for Chinese herbal medicine slices with the front panel removed.

[0020] Figure 4 The utility model is a structural schematic diagram of a dynamic airflow dryer for Chinese herbal medicine slices with a discharge cover removed.

[0021] Figure 5 The utility model is a side view of a dynamic airflow dryer for Chinese herbal medicine slices.

[0022] Figure 6 The utility model is a rear view of a dynamic airflow dryer for Chinese herbal medicine slices.

[0023] Figure 7 The utility model is a front view of a dynamic airflow dryer for Chinese herbal medicine slices.

[0024] Figure 8 The utility model discloses a structural schematic diagram of a hot air partition plate and a surrounding plate of a dynamic airflow dryer for Chinese herbal medicine slices.

[0025] Fig. 9 yes Figure 1 Enlarged view of point A in the middle.

[0026] Fig.10 The utility model is a structural schematic diagram of an air inlet duct of a dynamic airflow dryer for Chinese herbal medicine slices.

[0027] As shown in the figure: 1. Chassis, 2. Drum, 3. Support frame, 4. Rotatable bottom plate, 5. Feed cover, 6. Discharge cover, 7. Cylinder, 8. Upper hot air partition plate, 9. Lower hot air partition plate, 10. Air inlet duct, 11. Motor, 12. Lower air outlet duct, 13. Air inlet duct, 14. Chain, 15. Sprocket, 16. Electric heater, 17. Booster fan, 18. Air energy heat exchanger, 19. Support plate, 20. Seat plate, 21. Enclosure, 22. Upper air outlet duct, 23. Support wheel, 24. Stainless steel plate, 25. Stainless steel sintered mesh, 26. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the dynamic airflow dryer for Chinese herbal medicine slices of the utility model in conjunction with the accompanying drawings.

[0029] Combined with Figures 1 to 10 A dynamic airflow dryer for Chinese herbal medicine slices, comprising a chassis 1, wherein a drum 2 and a support frame 3 are arranged in the chassis 1, wherein the drum 2 is located on the upper part of the support frame 3, wherein a rotatable bottom plate 4 is arranged at the bottom of the chassis 1, wherein a feed cover 5 and a discharge cover 6 are arranged at both ends of the chassis 1, wherein a cylinder 7 is arranged on the upper part of the rotatable bottom plate 4, wherein the upper end of the cylinder 7 is fixedly connected to the support frame 3, and the lower end is rotatably connected to the rotatable bottom plate 4; wherein an upper air outlet pipe 22 is arranged on the top of the chassis 1;

[0030] The support frame 3 is provided with an upper hot air partition plate 8, a lower hot air partition plate 9 and a surrounding plate 21, the upper hot air partition plate 8 and the lower hot air partition plate 9 are both slidably matched with the drum 2, the surrounding plate 21 is located between the upper hot air partition plate 8 and the lower hot air partition plate 9 and at the lower part of the drum 2, and the drum 2 is provided with evenly distributed air inlet ducts 10;

[0031] The support frame 3 is provided with a motor 11, a lower air outlet pipe 12 and an air inlet pipe 13. The motor 11 is connected to a sprocket 15 at the end of the drum 2 through a chain 14. An electric heater 16 is provided in the air inlet pipe 13. The air inlet pipe 13 is connected to a booster fan 17. An air energy heat exchanger 18 is provided next to the booster fan 17. The upper ports of the lower air outlet pipe 12 and the air inlet pipe 13 are connected to the interior of the enclosure 21.

[0032] The drum 2 is rotatably connected to the chassis 1 via a plurality of support wheels 23 at both ends. The support wheels 23 are in rolling cooperation with the roller rings 26 of the drum 2 . The support frame 3 is fixedly connected to the chassis 1 .

[0033] The chassis 1 is provided with a control panel, and the control panel is electrically connected to the motor 11 , the cylinder 7 , the electric heater 16 , the booster fan 17 , and the air energy heat exchanger 18 .

[0034] The number of the motors 11 is two, and the number of the cylinders 7 is two.

[0035] The upper hot air partition plate 8 and the lower hot air partition plate 9 have the same structure and are both rotatably connected to the seat plate 20 , and the seat plate 20 is fixedly connected to the support frame 3 .

[0036] The rotating end of the rotatable bottom plate 4 faces the discharge cover 6 ; the sprocket wheel 15 faces the feed cover 5 .

[0037] The feed cover 5 and the discharge cover 6 are both rotatably connected to the chassis 1 .

[0038] The booster fan 17 and the air energy heat exchanger 18 are arranged on the support plate 19, and the air energy heat exchanger 18 is composed of a compressor, a surface cooler, and a condenser.

[0039] The air inlet duct 10 includes a stainless steel plate 24 and a stainless steel sintered mesh 25 .

[0040] When the utility model is implemented, the control panel is operated to start the dryer, the feed cover 5 is opened, and the cut Chinese herbal medicine slices are manually put into the drum 2 and then the feed cover 5 is closed. Setting parameters: ①, the temperature is set at 40--60℃; ②, the humidity parameter after drying is 10-13℅; ③, the electric heating working time is set according to the actual situation (it will not overheat); ④, the drum speed is 3-5 rpm, and the drum 2 is started to start drying. The hot air flow enters the enclosure 21 and then enters the drum 2 from the air inlet 10, and the Chinese herbal medicine slices that are constantly rolling are dried by air flow. The lower part of the drum 2 is a hot air zone, and the upper part is relatively a cool air zone, so that the average temperature of the air flow received by the Chinese herbal medicine slices during rolling is moderate. The lower air outlet 12 and the upper air outlet 22 are used for ventilation, so that the internal air pressure of the drum 2 is maintained naturally stable and avoids overheating. After the drying is completed, the cylinder 7 lifts the chassis 1, and then the unloading cover 6 is opened to unload.

[0041] The above describes the utility model and its implementation methods, which is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A dynamic airflow dryer for Chinese herbal medicine slices, characterized in that: The invention comprises a chassis (1), wherein a drum (2) and a support frame (3) are provided inside the chassis (1), wherein the drum (2) is located on the upper part of the support frame (3), wherein a rotatable bottom plate (4) is provided at the bottom of the chassis (1), wherein a feed cover (5) and a discharge cover (6) are provided at both ends of the chassis (1), wherein a cylinder (7) is provided on the upper part of the rotatable bottom plate (4), wherein the upper end of the cylinder (7) is fixedly connected to the support frame (3), and the lower end is rotatably connected to the rotatable bottom plate (4); and an upper air outlet pipe (22) is provided on the top of the chassis (1); The support frame (3) is provided with an upper hot air partition plate (8), a lower hot air partition plate (9) and a surrounding plate (21); the upper hot air partition plate (8) and the lower hot air partition plate (9) are both slidably matched with the drum (2); the surrounding plate (21) is located between the upper hot air partition plate (8) and the lower hot air partition plate (9) and at the lower part of the drum (2); the drum (2) is provided with evenly distributed air inlet ducts (10); The support frame (3) is provided with a motor (11), a lower air outlet pipe (12) and an air inlet pipe (13); the motor (11) is connected to a sprocket (15) at the end of the drum (2) through a chain (14); an electric heater (16) is provided in the air inlet pipe (13); the air inlet pipe (13) is connected to a booster fan (17); an air energy heat exchanger (18) is provided next to the booster fan (17); and the upper ports of the lower air outlet pipe (12) and the air inlet pipe (13) are connected to the interior of the enclosure (21).

2. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1, characterized in that: The drum (2) is rotatably connected to the chassis (1) via a plurality of support wheels (23) at both ends; the support wheels (23) are in rolling cooperation with the roller rings (26) of the drum (2); and the support frame (3) is fixedly connected to the chassis (1).

3. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1 or 2, characterized in that: The chassis (1) is provided with a control panel, and the control panel is electrically connected to the motor (11), the cylinder (7), the electric heater (16), the booster fan (17), and the air energy heat exchanger (18).

4. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1, characterized in that: There are two motors (11) and two cylinders (7).

5. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1, characterized in that: The upper hot air partition plate (8) and the lower hot air partition plate (9) have the same structure and are both rotatably connected to the seat plate (20), and the seat plate (20) is fixedly connected to the support frame (3).

6. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1 or 2, characterized in that: The rotating end of the rotatable bottom plate (4) faces the discharge cover (6); and the sprocket wheel (15) faces the feed cover (5).

7. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1 or 2, characterized in that: The feed cover (5) and the discharge cover (6) are both rotatably connected to the chassis (1).

8. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 3, characterized in that: The booster fan (17) and the air energy heat exchanger (18) are arranged on a support plate (19); the air energy heat exchanger (18) is composed of a compressor, a surface cooler, and a condenser.

9. A dynamic airflow dryer for Chinese herbal medicine slices according to claim 1, characterized in that: The air inlet duct (10) comprises a stainless steel plate (24) and a stainless steel sintered mesh (25).

Citation Information

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