Traditional Chinese medicine drying device

By designing a Chinese medicine drying device including a box, a rotating shaft, a drying box, an air inlet assembly and an exhaust assembly, the problems of easy breakage and low drying efficiency of Chinese medicine during the drying process are solved, and the uniform drying and efficient drying of Chinese medicine are achieved.

CN222598329UActive Publication Date: 2025-03-11THE FIRST AFFILIATED HOSPITAL OF GUANGXI UNIV OF TRADITIONAL CHINESE MEDICINE (GUANGXI TRADITIONAL CHINESE MEDICINE HOSPITAL)
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Patent Information

Application Number
CN202421033034.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-13
Publication Date
2025-03-11
Estimated Expiration
2034-05-13

AI Technical Summary

Technical Problem

The existing Chinese herbal medicine drying equipment can easily cause the Chinese herbal medicine to break down during the stir-frying process, resulting in more debris, and the drying efficiency and sanitary conditions are insufficient.

Method used

A Chinese medicine drying device is designed, including a box, a rotating shaft, a drying box, an air inlet assembly and an air exhaust assembly. The drying box rotates synchronously through the rotating shaft to ensure that the Chinese medicinal materials are heated evenly; the air inlet and exhaust components increase the drying temperature and reduce humidity, and improve drying efficiency; cold air is used to dry it later in the drying stage to reduce cooling.

Benefits of technology

This device makes the Chinese herbal medicine not easy to break during the drying process and maintains high integrity; it improves drying efficiency and sanitary conditions, shortens the drying time, and facilitates subsequent processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a traditional Chinese medicine drying device which comprises a box body which is of a horizontally-arranged hollow cylindrical structure. The rotating shaft is arranged in the axial direction of the box body and is driven by a motor to rotate; the drying boxes are arranged in the circumferential direction of the rotating shaft at intervals and connected with the rotating shaft, each drying box is provided with a drying hole, and the length direction of each drying box is parallel to the rotating shaft; the air inlet assembly comprises an air blower and a heating box, an air outlet of the air blower communicates with an air inlet of the heating box, and an air outlet of the heating box communicates with the bottom of the box body; the exhaust assembly comprises an exhaust fan, and an air inlet of the exhaust fan communicates with the top of the box body; the lower portion of the box body is provided with a material taking and placing opening and a material taking and placing opening door matched with the material taking and placing opening, and the material taking and placing opening is horizontally arranged and is opposite to the motion trail of the drying box. The traditional Chinese medicine decoction piece drying device has the advantages that drying efficiency is high, dried traditional Chinese medicine decoction pieces are not prone to being broken, and integrity is good.
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Description

Technical Field

[0001] The utility model relates to the field of Chinese medicinal material processing, and more specifically, to a Chinese medicinal material drying device. Background Art

[0002] Chinese herbal medicine slices are Chinese herbal medicines that have been processed according to the theory of traditional Chinese medicine and the processing methods of traditional Chinese medicine, and can be directly used in clinical Chinese medicine. Chinese herbal medicine slices need to be dried during the processing. The existing drying methods for herbal medicine slices generally include natural drying and artificial drying. Natural drying is to dry the cut herbal medicine slices in the sun or in a cool and ventilated place; artificial drying is to use drying equipment to dry the herbal medicine slices. Although the natural drying method has the advantages of being economical, convenient and low-cost, this method occupies a large area, is easily affected by the climate, and the herbal medicine slices are not very hygienic; artificial drying is not affected by the climate, is more hygienic than natural drying, and can shorten the drying time.

[0003] Existing drying equipment, such as the utility model patent with publication number CN210689050U, discloses a Chinese medicine slice dryer, which introduces hot air into the Chinese medicine slices by arranging a blower, an electric heating wire and a ventilation plate, and stir-fries the Chinese medicine slices by arranging a rotating motor, a rotating column and a stirring blade, so as to achieve the purpose of fully heating and drying the Chinese medicine slices. However, the stirring blade directly contacts the Chinese medicine slices to stir-fry the Chinese medicine slices, which easily causes the Chinese medicine to break and produces more debris. Utility Model Content

[0004] One purpose of the utility model is to provide a Chinese medicine drying device to at least solve the above-mentioned problem.

[0005] In order to achieve the purpose and other advantages of the utility model, a traditional Chinese medicine drying device is provided, comprising: a box body, which is a horizontally arranged hollow cylindrical structure; a rotating shaft, which is arranged along the axial direction of the box body and is driven to rotate by a motor; a plurality of drying boxes, which are arranged at intervals along the circumference of the rotating shaft and connected to the rotating shaft, each drying box is provided with a drying hole, and the length direction of the drying box is parallel to the rotating shaft; an air inlet assembly, which comprises a blower and a heating box, the air outlet of the blower is connected to the air inlet of the heating box, and the air outlet of the heating box is connected to the bottom of the box body; an exhaust assembly, which comprises an exhaust fan, and the air inlet of the exhaust fan is connected to the top of the box body; wherein, a material access opening and a material access opening door matched therewith are provided at the lower part of the box body, and the material access opening is horizontally arranged and opposite to the movement trajectory of the drying box.

[0006] Preferably, in the traditional Chinese medicine drying device, the drying box is a pull-out drying box, comprising a fixed part and a movable part, the fixed part is a hollow rectangular structure, and the fixed part is open at one end close to the material access port door, both ends of the bottom surface of the fixed part are fixedly connected to the rotating shaft through a connecting assembly, the movable part is a hollow rectangular structure with an open top surface, the movable part is arranged in the fixed part and horizontally slidably connected thereto, the end of the movable part close to the material access port door is provided with a pull-out door cooperating with the open end of the fixed part, and a handle is provided on the outside of the pull-out door, wherein the fixed part and the movable part are both mesh structures.

[0007] Preferably, in the traditional Chinese medicine drying device, an air distribution box is fixedly provided at the bottom of the box body, a plurality of air distribution holes are spaced apart on the top surface of the air distribution box, each air distribution hole is connected to the bottom of the box body, and the side wall of the air distribution box is connected to the air outlet of the heating box through an air distribution pipe.

[0008] Preferably, in the traditional Chinese medicine drying device, the air branch duct comprises a first air branch duct, a second air branch duct and a plurality of third air branch ducts, one end of the first air branch duct is connected to the air outlet of the heating box, and the other end is connected to the middle part of the side wall of the second air branch duct, both ends of the second air branch duct are closed, one end of the plurality of third air branch ducts are respectively connected to the side walls of the second air branch duct, and the other ends are respectively connected to the side walls of the air branch box.

[0009] Preferably, in the traditional Chinese medicine drying device, an air collecting box is fixedly provided at the bottom of the box body, a plurality of air collecting holes are spaced apart on the bottom surface of the air collecting box, each air collecting hole is connected to the top of the box body, and the top surface of the air collecting box is connected to the air inlet of the exhaust fan through an air collecting pipe.

[0010] Preferably, in the traditional Chinese medicine drying device, the air collecting duct comprises a first air collecting duct, a second air collecting duct and a plurality of third air collecting ducts, one end of the first air collecting duct is connected to the air inlet of the exhaust fan, and the other end is connected to the middle part of the side wall of the second air collecting duct, both ends of the second air collecting duct are closed, one end of the plurality of third air collecting ducts are respectively connected to the side walls of the second air collecting duct, and the other ends are respectively connected to the top surface of the air collecting box.

[0011] Preferably, the traditional Chinese medicine drying device further includes: a heat recovery component, which includes an exhaust duct, a heat recovery box and a first air inlet duct, the heat recovery box is a vertically arranged hollow box structure, an air inlet is provided at the bottom of the heat recovery box, one end of the exhaust duct is connected to the air outlet of the exhaust fan, the other end extends into the heat recovery box and is serpentine-bent inside the heat recovery box and then passes through the bottom of the heat recovery box, one end of the first air inlet duct is connected to the top of the heat recovery box, and the other end is connected to the air inlet of the blower.

[0012] Preferably, in the traditional Chinese medicine drying device, one end of the first air inlet pipe close to the blower is connected to the air inlet of the blower through a three-way valve, and the other port of the three-way valve is connected to the second air inlet pipe.

[0013] The utility model at least has the following beneficial effects:

[0014] First, by setting a rotating shaft, a motor and a drying box, and placing the Chinese herbal medicine pieces to be dried in the drying box, during the drying process, the drying box can rotate synchronously with the rotating shaft, so that the Chinese herbal medicine pieces are evenly heated. At the same time, the drying box limits the large-scale turning and displacement of the Chinese herbal medicine pieces, so that the dried Chinese herbal medicine pieces are not easy to break and have good integrity;

[0015] Second, by setting up the air inlet component and the air exhaust component, the drying temperature in the box can be quickly increased, the humidity in the box can be reduced, and the drying efficiency can be improved;

[0016] Third, by turning off the resistance wire in the heating box and turning on the exhaust fan in the later stage of drying, the Chinese herbal medicines can be quickly dried and cooled by cold air, which is convenient for timely follow-up processing after the Chinese herbal medicines are taken out.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a traditional Chinese medicine drying device according to an embodiment of the utility model;

[0019] Figure 2 It is a side structural schematic diagram of a traditional Chinese medicine drying device of another embodiment of the utility model;

[0020] Figure 3 It is a schematic cross-sectional structural diagram of a box body of another embodiment of the utility model;

[0021] Figure 4 It is a schematic cross-sectional structural diagram of a heat recovery box according to another embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and drawings so that those skilled in the art can implement the invention with reference to the description.

[0023] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0024] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figure 1 to Figure 3 As shown, the utility model provides a Chinese medicine drying device, comprising: a box body 1, which is a horizontally arranged hollow cylindrical structure; a rotating shaft 2, which is arranged along the axial direction of the box body 1 and driven to rotate by a motor 3; a plurality of drying boxes 4, which are arranged at intervals along the circumference of the rotating shaft 2 and connected to the rotating shaft 2, each drying box 4 is provided with a drying hole, and the length direction of the drying box 4 is parallel to the rotating shaft 2; an air inlet component, which comprises a blower 5 and a heating box 6, the air outlet of the blower 5 is connected to the air inlet of the heating box 6, and the air outlet of the heating box 6 is connected to the bottom of the box body 1; an exhaust component, which comprises an exhaust fan 7, the air inlet of the exhaust fan 7 is connected to the top of the box body 1; wherein, a material taking and placing port and a material taking and placing port door 8 matched therewith are provided at the lower part of the box body 1, and the material taking and placing port is horizontally arranged and opposite to the movement trajectory of the drying box 4.

[0026] In the above embodiment, the Chinese medicine drying device includes a housing 1, a rotating shaft 2, a plurality of drying boxes 4, an air inlet assembly and an exhaust assembly. The housing 1 is a horizontally arranged hollow cylindrical structure, and the housing 1 can be supported and fixed on the ground by a supporting assembly. A material access opening is provided at the lower part of one end surface of the housing 1, and a material access opening door 8 is provided on the material access opening to cooperate with it. The rotating shaft 2 is arranged along the axial direction of the housing 1 and is rotatably connected to the two end surfaces of the housing 1 through bearings, and one end of the rotating shaft 2 passes through the housing 1 and is connected to the output shaft of a motor 3, and the motor 3 drives the rotating shaft 2 to rotate around the axial direction of the housing 1. A plurality of drying boxes 4 are arranged in the box body 1 at intervals along the circumference of the rotating shaft 2. The length direction of each drying box 4 is parallel to the rotating shaft 2. Both ends of each drying box 4 are fixed on the rotating shaft 2 through a connecting assembly 23 and rotate synchronously with the rotating shaft 2. When the drying box 4 rotates to the lowest point in the box body 1 along the rotating shaft 2, the drying box 4 is opposite to the material access port. Each drying box 4 is provided with a drying hole, and the diameter of the drying hole is smaller than the width of the dried Chinese herbal medicine slices. An air inlet assembly is arranged at the outside of the bottom of the box body 1 and is used to introduce hot air into the box body 1. The air inlet assembly includes a blower 5 and a heating box 6 connected to the air outlet of the blower 5. A resistance wire is arranged in the heating box 6, and the air outlet of the heating box 6 is connected to the bottom of the box body 1. An exhaust assembly is arranged at the outside of the top of the box body 1. The exhaust assembly is used to discharge the hot and humid air in the box body 1. The exhaust assembly includes an exhaust fan 7, and the air inlet of the exhaust fan 7 is connected to the top of the box body 1.

[0027] When in use, first open the material access door 8, put the Chinese herbal medicines to be dried into the drying box 4, then close the material access door 8, start the blower 5 and the electric heating box 6, introduce hot air into the box body 1, and then start the motor 3, so that the motor 3 drives the rotating shaft 2, and the rotating shaft 2 drives the drying box 4 to rotate slowly around the axial direction of the box body 1, and the Chinese herbal medicines to be dried in the drying box 4 are uniformly heated and dried. During the drying process, the exhaust fan 7 is started at a preset time interval to discharge the hot and humid air in the box body 1. In the later stage of drying, the resistance wire in the electric heating box 6 is turned off while the blower 5 and the exhaust fan 7 are kept on, and the Chinese herbal medicines are quickly cold-dried and cooled. After drying, the material access door 8 is opened, and the dried Chinese herbal medicines are taken out of the drying box 4, and the subsequent packaging process can be transferred to.

[0028] The utility model provides a rotating shaft, a motor and a drying box, and places the Chinese herbal medicine pieces to be dried in the drying box. During the drying process, the drying box can rotate synchronously with the rotating shaft, so that the Chinese herbal medicine pieces are evenly heated. At the same time, the drying box limits the large-scale turning and displacement of the Chinese herbal medicine pieces, so that the dried Chinese herbal medicine pieces are not easy to break and have good integrity. The air inlet component and the air exhaust component are provided to quickly increase the drying temperature in the box and reduce the humidity in the box, thereby improving the drying efficiency. The resistance wire in the heating box is closed in the late stage of drying and the exhaust fan is turned on in coordination, so that the Chinese herbal medicine pieces are quickly dried with cold air and cooled, so that it is convenient to carry out subsequent processing in time after the Chinese herbal medicine pieces are taken out.

[0029] Furthermore, a temperature and humidity sensor is provided in the box 1, and a controller is provided outside the box 1, and the controller is respectively connected to the temperature and humidity sensor, the heating box 6 and the exhaust fan 7. In the early stage of drying, when the temperature in the box exceeds a preset threshold, the controller controls the resistance wire in the heating box to be turned off and the exhaust fan to be turned on. When the temperature in the box is lower than the preset threshold, the controller controls the resistance wire in the heating box to be turned on to control the temperature in the box within a preset range. When the humidity in the box exceeds the preset threshold, the controller controls the exhaust fan to be turned on to extract the hot and humid air in the box to control the humidity in the box below the preset threshold.

[0030] Further, the drying box 4 is a pull-out drying box, including a fixed part and a movable part, the fixed part is a hollow rectangular parallelepiped structure, and one end of the fixed part close to the material access port door 8 is open, the two ends of the bottom surface of the fixed part are fixedly connected to the rotating shaft 2 through a connecting assembly 23, the movable part is a hollow rectangular parallelepiped structure with an open top surface, the movable part is arranged in the fixed part and horizontally slidably connected thereto, the end of the movable part close to the material access port door 8 is provided with a pull-out door that cooperates with the open end of the fixed part, and a handle is provided on the outside of the pull-out door, wherein the fixed part and the movable part are both mesh structures. When taking and placing Chinese herbal medicine pieces, the movable part can be pulled out of the fixed part by the handle, and the Chinese herbal medicine pieces can be taken and placed through the material access port door, which is simple to operate.

[0031] In another embodiment, an air distribution box 9 is fixedly provided at the bottom of the box body 1, and a plurality of air distribution holes are spaced apart on the top surface of the air distribution box 9, each of which is connected to the bottom of the box body 1, and the side wall of the air distribution box 9 is connected to the air outlet of the heating box 6 through an air distribution pipe.

[0032] In the above embodiment, an air distribution box is arranged at the bottom of the box body, so that the gas entering the box body from the heating box enters the box body through the air distribution holes on the air distribution box, so that the gas entering the box body is evenly distributed.

[0033] Furthermore, the air branch duct includes a first air branch duct 10, a second air branch duct 11 and a plurality of third air branch ducts 12, one end of the first air branch duct 10 is connected to the air outlet of the heating box 6, and the other end is connected to the middle part of the side wall of the second air branch duct 11, and both ends of the second air branch duct 11 are closed, one end of the plurality of third air branch ducts 12 are respectively connected to the side walls of the second air branch duct 11, and the other ends are respectively connected to the side walls of the air branch box 9, so that the gas entering the air branch box is more evenly distributed, and thus the gas entering the box body is more evenly distributed.

[0034] In another embodiment, an air collecting box 13 is fixedly provided at the bottom of the box body 1, and a plurality of air collecting holes are spaced apart on the bottom surface of the air collecting box 13, each of the air collecting holes is connected to the top of the box body 1, and the top surface of the air collecting box 13 is connected to the air inlet of the exhaust fan 7 through an air collecting pipe.

[0035] In the above embodiment, an air collecting box is arranged on the top of the box body, so that the gas exhausted from the box body enters the air collecting box through the air collecting holes and is then drawn out by the exhaust fan, so that the gas on the top of the box body is evenly drawn out.

[0036] Furthermore, the air collecting duct includes a first air collecting duct 14, a second air collecting duct 15 and a plurality of third air collecting ducts 16, one end of the first air collecting duct 14 is connected to the air inlet of the exhaust fan 7, and the other end is connected to the middle of the side wall of the second air collecting duct 15, and both ends of the second air collecting duct 15 are closed, one end of the plurality of third air collecting ducts 16 are respectively connected to the side walls of the second air collecting duct 15, and the other ends are respectively connected to the top surfaces of the air collecting box 17, so that the gas at the top of the box body can enter the air collecting box more evenly.

[0037] In another embodiment, the Chinese medicine drying device further includes: a heat recovery component, which includes an exhaust pipe 17, a heat recovery box 18 and a first air inlet pipe 19. The heat recovery box 18 is a vertically arranged hollow box structure, and an air inlet 20 is provided at the bottom of the heat recovery box 18. One end of the exhaust pipe 17 is connected to the air outlet of the exhaust fan 7, and the other end extends into the heat recovery box 18 and passes through the bottom of the heat recovery box 18 after being serpentine-bent inside the heat recovery box 18. One end of the first air inlet pipe 19 is connected to the top of the heat recovery box 18, and the other end is connected to the air inlet of the blower 5. Specifically, the heat recovery box 18 is a heat-insulating box, and the part of the exhaust pipe 17 located in the heat recovery box 18 is an aluminum tube.

[0038] In the above embodiment, by providing an exhaust duct, a heat recovery box and a first air inlet duct, the air entering the blower first enters the heat recovery box through the air inlet, and after being preheated by heat exchange with the exhaust duct in the heat recovery box, enters the blower through the first air inlet duct, thereby realizing the recovery of heat in the hot and humid air extracted from the box and saving energy.

[0039] Furthermore, if Figure 4 As shown, the exhaust duct 17 is serpentine-bent in the same vertical plane of the heat recovery box 18, and the spacing between the upper and lower adjacent exhaust ducts 17 is 1 to 1.5 cm, and the spacing between the inner wall of the heat recovery box 18 and the wall of the adjacent exhaust duct 17 is 1 to 3 cm to improve the heat recovery effect.

[0040] In another embodiment, one end of the first air inlet pipe 19 close to the blower 5 is connected to the air inlet of the blower 5 through a three-way valve 21 , and the other end of the three-way valve 21 is connected to the second air inlet pipe 22 .

[0041] In the above embodiment, the three-way valve is a two-inlet-one-outlet three-way valve, the outlet end is connected to the air inlet of the blower, one of the inlet ends is connected to the first air inlet pipe, and the other inlet end is connected to the second air inlet pipe. By controlling the on-off of the three-way valve, the gas entering the blower during the drying process is regulated. Specifically, in the early stage of drying, the first air inlet pipe is connected to the air inlet of the blower, so that the external air is preheated by the heat recovery box before entering the blower, realizing heat recovery and utilization. In the late stage of drying, the second air inlet pipe is connected to the air inlet of the blower, so that the external air directly enters the blower, realizing rapid cooling of the Chinese herbal medicine slices.

[0042] The number of devices and processing scales described here are used to simplify the description of the utility model. The application, modification and variation of the Chinese medicine drying device of the utility model are obvious to those skilled in the art.

[0043] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A Chinese medicine drying device, characterized in that: include: The box body is a horizontally arranged hollow cylindrical structure; A rotating shaft, which is arranged along the axial direction of the box body and is driven to rotate by a motor; A plurality of drying boxes are arranged at intervals along the circumference of the rotating shaft and connected to the rotating shaft, each drying box is provided with a drying hole, and the length direction of the drying box is parallel to the rotating shaft; An air inlet assembly, comprising a blower and a heating box, wherein the air outlet of the blower is connected to the air inlet of the heating box, and the air outlet of the heating box is connected to the bottom of the box body; An exhaust assembly includes an exhaust fan, the air inlet of the exhaust fan is connected to the top of the box; wherein, The lower part of the box body is provided with a material access opening and a material access opening door matched therewith, the material access opening is arranged horizontally, and when the drying box rotates with the rotating shaft to the lowest point in the box body, the drying box is opposite to the material access opening; The drying box is a pull-out drying box, including a fixed part and a movable part, the fixed part is a hollow rectangular parallelepiped structure, and one end of the fixed part close to the material access door is open, the two ends of the bottom surface of the fixed part are fixedly connected to the rotating shaft through a connecting assembly, the movable part is a hollow rectangular parallelepiped structure with an open top surface, the movable part is arranged in the fixed part and horizontally slidably connected thereto, the end of the movable part close to the material access door is provided with a pull-out door that cooperates with the open end of the fixed part, and a handle is provided on the outside of the pull-out door, wherein each drying box is provided with a drying hole, and the diameter of the drying hole is smaller than the width of the dried Chinese herbal medicine slices.

2. The Chinese medicine drying device according to claim 1, characterized in that: An air distribution box is fixedly provided at the bottom of the box body, and a plurality of air distribution holes are spaced apart on the top surface of the air distribution box. Each air distribution hole is connected to the bottom of the box body, and the side wall of the air distribution box is connected to the air outlet of the heating box through an air distribution pipe.

3. The Chinese medicine drying device according to claim 2, characterized in that: The air distribution duct includes a first air distribution duct, a second air distribution duct and multiple third air distribution ducts, one end of the first air distribution duct is connected to the air outlet of the heating box, and the other end is connected to the middle part of the side wall of the second air distribution duct, both ends of the second air distribution duct are closed, and one end of the multiple third air distribution ducts are respectively connected to the side walls of the second air distribution duct, and the other end are respectively connected to the side walls of the air distribution box.

4. The Chinese medicine drying device according to claim 2, characterized in that: An air collecting box is fixedly arranged at the bottom of the box body, and a plurality of air collecting holes are spaced apart on the bottom surface of the air collecting box. Each air collecting hole is connected to the top of the box body, and the top surface of the air collecting box is connected to the air inlet of the exhaust fan through an air collecting pipe.

5. The Chinese medicine drying device according to claim 4, characterized in that: The air collecting duct includes a first air collecting duct, a second air collecting duct and multiple third air collecting ducts, one end of the first air collecting duct is connected to the air inlet of the exhaust fan, and the other end is connected to the middle part of the side wall of the second air collecting duct, both ends of the second air collecting duct are closed, one end of the multiple third air collecting ducts are respectively connected to the side walls of the second air collecting duct, and the other ends are respectively connected to the top surface of the air collecting box.

6. The Chinese medicine drying device according to claim 4, characterized in that: Also includes: A heat recovery component comprises an exhaust duct, a heat recovery box and a first air inlet duct, wherein the heat recovery box is a vertically arranged hollow box structure, an air inlet is provided at the bottom of the heat recovery box, one end of the exhaust duct is communicated with the air outlet of the exhaust fan, the other end extends into the heat recovery box and is serpentine-bent inside the heat recovery box before passing through the bottom of the heat recovery box, one end of the first air inlet duct is communicated with the top of the heat recovery box, and the other end is communicated with the air inlet of the blower.

7. The Chinese medicine drying device according to claim 6, characterized in that: One end of the first air inlet pipe close to the blower is connected to the air inlet of the blower through a three-way valve, and the other end of the three-way valve is connected to the second air inlet pipe.

Citation Information

Patent Citations

  • Drying machine for traditional Chinese medicine decoction pieces

    CN210689050U