A ginkgo leaf drying device

Abstract

The utility model discloses a ginkgo leaf drying equipment, include: drying cylinder, guide material cover shell, dust extraction and dehumidification mechanism, waste heat reflux mechanism. Dust extraction and dehumidification mechanism includes the dehumidification cylinder, and the dehumidification cylinder rotates and is equipped with the filter screen cylinder, and the filter screen cylinder is fixedly equipped with the drying net tray of multiple groups even distribution in, and the inner wall of dehumidification cylinder is fixedly equipped with the cleaning brush, and the filter screen cylinder is fixedly equipped with the dehumidification fan in the side away from guide material cover shell. Waste heat reflux mechanism includes the exhaust pipe, and the one end fixedly connected with the elastic heat preservation reflux pipe of dehumidification cylinder away from the dehumidification cylinder. The utility model discloses a ginkgo leaf drying equipment through setting dust extraction and dehumidification mechanism, can carry out the extraction treatment to the high temperature humidity generated in ginkgo leaf drying process, has improved the high temperature humidity exportation efficiency in the cylinder, has improved ginkgo leaf drying efficiency, can carry out the recycling to the gas after dehumidification and dust removal, has improved the energy -conserving environmental protection nature of ginkgo leaf drying.

Description

Technical Field

[0001] This utility model belongs to the technical field of ginkgo leaf drying equipment, and specifically relates to a ginkgo leaf drying equipment. Background Technology

[0002] Ginkgo leaf drying equipment is a device used to dry ginkgo leaves. The main purpose of drying ginkgo leaves is to preserve their various active ingredients and facilitate storage. Currently, common ginkgo leaf drying equipment can be divided into several categories according to their structure: drum dryers, belt dryers, hot air circulating ovens, and disc dryers. Among them, drum dryers are used as ginkgo leaf drying equipment because of their advantages of large drying capacity, low energy consumption, and low drying cost.

[0003] A typical rotary drum dryer mainly consists of a drum, a hot air furnace, a rotary drive assembly, and other accessories. In practical applications, the ginkgo leaves to be dried are stored in the drum, and the ginkgo leaves are dried by heating the drum in the hot air furnace.

[0004] Moisture is generated during the drying process of ginkgo leaves in a rotary drum dryer, and the efficiency of moisture removal is closely related to the drying efficiency of ginkgo leaves. Existing rotary drum dryers mainly use dehumidifying fans at the discharge or feed end to accelerate the removal of moisture from the drum. However, during the dehumidification process, the drum experiences large temperature fluctuations due to the extraction of high-temperature moisture. This not only reduces the efficiency and uniformity of drying ginkgo leaves, but also leads to a certain degree of resource waste by directly exporting the high-temperature moisture from the drum. As a result, the rotary drum dryer has poor efficiency and energy-saving and environmental protection performance in drying ginkgo leaves.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a ginkgo leaf drying device.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a ginkgo leaf drying device that can improve the efficiency and energy conservation and environmental protection of drying ginkgo leaves.

[0008] To achieve the above objectives, a specific embodiment of this utility model provides a ginkgo leaf drying device, including: a drying drum, a material guide cover, a dust removal and dehumidification mechanism, and a waste heat return mechanism.

[0009] A guide cover is hinged to the port of the drying drum.

[0010] The dust removal and dehumidification mechanism is fixedly mounted on the side of the material guide cover away from the drying drum. The dust removal and dehumidification mechanism includes a dehumidification cylinder that is in communication with the material guide cover. A filter screen cylinder is rotatably mounted inside the dehumidification cylinder. Multiple sets of evenly distributed drying screens are fixedly mounted inside the filter screen cylinder. A discharge pipe is fixedly mounted below the dehumidification cylinder. A cleaning brush is fixedly mounted on the inner wall of the dehumidification cylinder and contacts the outer surface of the filter screen cylinder. A dehumidification fan is fixedly mounted on the side of the filter screen cylinder away from the material guide cover.

[0011] The waste heat return mechanism is fixedly assembled on the side of the dehumidification cylinder away from the material guide cover. The waste heat return mechanism includes an exhaust pipe, which is connected to the dehumidification cylinder. An elastic heat-insulating return pipe is fixedly connected to the end of the exhaust pipe away from the dehumidification cylinder.

[0012] In one or more embodiments of this utility model, a spiral guide plate is fixedly installed inside the drying drum. By installing the spiral guide plate inside the drying drum, the spiral guide plate can turn and discharge the ginkgo leaves inside as the drying drum rotates. A feeding pipe is fixedly installed above the guide cover. Ginkgo leaves to be dried are added into the drying drum through the feeding pipe. A discharge pipe is fixedly installed below the guide cover, and both the feeding pipe and the discharge pipe are correspondingly arranged to the drying drum. The dried ginkgo leaves are discharged from the drying drum through the discharge pipe.

[0013] In one or more embodiments of this utility model, a heat-insulating base frame is fitted below the drying drum. The heat-insulating base frame supports and limits the position of the drying drum. A heating chamber is formed between the heat-insulating base frame and the drying drum. The heating chamber provides assembly and operating space for the heating channel. Simultaneously, the outer wall of the drying drum can be heated through the heating chamber, thereby facilitating the drying of the ginkgo leaves inside the drying drum. A heating channel is fixedly installed within the heating chamber. The heating medium is conveyed through the heating channel.

[0014] In one or more embodiments of this utility model, an inner partition is fixedly assembled inside the dehumidification cylinder. The inner partition serves to limit the assembly of the drive gear ring. The inner partition and the filter screen cylinder divide the dehumidification cylinder into a dust removal chamber and an exhaust chamber, and the dehumidification fan is fixedly assembled in the exhaust chamber. The high-temperature humid air extracted from the drying drum is filtered and guided through the dust removal chamber. The dehumidified and dust-removed humid air is discharged through the exhaust chamber.

[0015] In one or more embodiments of this utility model, a drive gear ring is rotatably assembled inside the inner partition, and the drive gear ring is fixedly connected to the filter screen cylinder. The drive gear ring serves to assemble, fix, and drive the filter screen cylinder to rotate. A transmission gear meshes below the drive gear ring. The transmission gear transmits the power of the rotating shaft, allowing the filter screen cylinder to rotate synchronously with the rotating shaft under the meshing action of the drive gear ring and the transmission gear.

[0016] In one or more embodiments of this utility model, a rotating shaft is fixedly connected inside the transmission gear. The rotating shaft serves to assemble, fix, and drive the transmission gear. A gear cover is rotatably connected to the outer side of the rotating shaft, and the gear cover is fixedly assembled to the outer side of the dehumidifying cylinder. The gear cover limits the assembly of the rotating shaft. A rotating handwheel is fixedly connected to one end of the rotating shaft outside the gear cover. The transmission gear is driven to rotate by controlling the rotation of the rotating handwheel.

[0017] In one or more embodiments of this utility model, multiple sets of drying mesh trays are filled with drying packing material. The drying packing material dehumidifies the moisture after dust removal. A collection cylinder is threadedly connected to the lower part of the discharge pipe. The collection cylinder collects impurities filtered out in the dust removal chamber.

[0018] In one or more embodiments of this utility model, a distribution pipe is fixedly connected to the end of the elastic heat-insulating return pipe away from the exhaust pipe. The distribution pipe serves to connect the elastic heat-insulating return pipe with multiple guide pipes, facilitating the delivery of the dehumidified gas to the multiple guide pipes. A pipe frame is fitted onto the outer side of the distribution pipe, and the pipe frame is fixedly assembled to one side of the drying drum. The distribution pipe is assembled and fixed by the pipe frame.

[0019] In one or more embodiments of this utility model, an upper shell is fitted over the drying drum. The upper shell serves to limit and insulate the drying drum. The upper shell and the drying drum cooperate to form an insulated reflux chamber. By conveying the dehumidified and dust-removed gas into the insulated reflux chamber, the drying drum is insulated and heated, improving the energy efficiency of the drying drum. Multiple reflux pipes are fixedly installed above the upper shell, and all of the reflux pipes are connected to the insulated reflux chamber. The reflux pipes serve to connect the connecting pipes to the insulated reflux chamber.

[0020] In one or more embodiments of this utility model, a connecting pipe is fixedly connected above each of the plurality of return pipes. The connecting pipe serves to connect the return pipes and the guide pipes. A guide pipe is fixedly connected between each of the plurality of connecting pipes and the distribution pipes. The guide pipe serves to connect the distribution pipes and the connecting pipes.

[0021] Compared with the prior art, the ginkgo leaf drying equipment disclosed in this utility model can extract and process the high-temperature moisture generated during the drying process of ginkgo leaves by setting up a dust removal and dehumidification mechanism, thereby improving the efficiency of high-temperature moisture removal from the drum and improving the drying efficiency of ginkgo leaves.

[0022] By setting up a waste heat recirculation mechanism, the gas after dehumidification and dust removal can be recovered and reused, which improves the energy efficiency and environmental friendliness of drying ginkgo leaves. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a partial structural schematic diagram of a ginkgo leaf drying device according to one embodiment of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0026] Figure 3 This is a side sectional view of a ginkgo leaf drying device according to one embodiment of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure at point B;

[0028] Figure 5 This is a perspective view of a ginkgo leaf drying device according to an embodiment of the present invention;

[0029] Figure 6 This is a perspective view of the open state of the material guide cover of a ginkgo leaf drying device according to an embodiment of the present invention;

[0030] Figure 7 This is a perspective view of a ginkgo leaf drying device according to one embodiment of the present invention.

[0031] Explanation of key figure labels:

[0032] 1-Drying drum, 101-Guide cover, 102-Spiral guide plate, 103-Feeding pipe, 104-Discharge pipe, 105-Insulated base frame, 106-Heating chamber, 107-Heating flue, 2-Dust removal and dehumidification mechanism, 201-Dehumidification cylinder, 202-Filter screen cylinder, 203-Drying screen, 204-Discharge pipe, 205-Cleaning brush, 206-Dehumidification fan, 207-Inner partition, 208-Dust removal chamber, 209-Discharge... 210-Drive gear ring, 211-Transmission gear, 212-Rotating shaft, 213-Gear cover, 214-Rotating handwheel, 215-Drying packing, 216-Collecting cylinder, 3-Waste heat return mechanism, 301-Exhaust pipe, 302-Elastic heat-insulating return pipe, 303-Distribution pipe, 304-Pipe rack, 305-Upper shell, 306-Heat-insulating return cavity, 307-Return pipe, 308-Connecting pipe, 309-Guide pipe. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] like Figures 1 to 7 As shown, a ginkgo leaf drying device in one embodiment of the present invention includes: a drying drum 1, a material guide cover 101, a dust removal and dehumidification mechanism 2, and a waste heat return mechanism 3.

[0035] like Figures 5 to 6 As shown, a guide cover 101 is hinged to the end of the drying drum 1. The guide cover 101 assembles and fixes the feeding pipe 103 and the discharge pipe 104, and plays an auxiliary limiting role in the feeding and discharging process of ginkgo leaves.

[0036] like Figure 1 As shown, a spiral guide plate 102 is fixedly installed inside the drying drum 1. By setting the spiral guide plate 102 inside the drying drum 1, the spiral guide plate 102 can turn and discharge the ginkgo leaves inside as the drying drum 1 rotates.

[0037] Specifically, when the drying drum 1 rotates clockwise, the spiral guide plate 102 can turn the ginkgo leaves inside the drying drum 1. When the drying drum 1 rotates counterclockwise, the ginkgo leaves inside the drying drum 1 can be discharged under the action of the spiral guide plate 102.

[0038] like Figure 1As shown, a feeding pipe 103 is fixedly installed above the material guide cover 101. Ginkgo leaves to be dried are added into the drying drum 1 through the feeding pipe 103.

[0039] like Figure 1 As shown, a discharge pipe 104 is fixedly installed below the guide cover 101, and both the feeding pipe 103 and the discharge pipe 104 are correspondingly set with the drying drum 1. The dried ginkgo leaves are discharged from the drying drum 1 through the discharge pipe 104.

[0040] like Figure 1 As shown, an insulated base frame 105 is fitted under the drying drum 1. The insulated base frame 105 serves to support and limit the movement of the drying drum 1.

[0041] Specifically, a heating chamber 106 is formed between the heat-insulating base frame 105 and the drying drum 1. The heating chamber 106 provides assembly and operating space for the heating channel 107. At the same time, the outer wall of the drying drum 1 can be heated through the heating chamber 106, thereby facilitating the drying of the ginkgo leaves inside the drying drum 1.

[0042] like Figure 1 As shown, a heating channel 107 is fixedly installed inside the heating chamber 106. The heating medium is transported through the heating channel 107.

[0043] like Figures 1 to 2 As shown, the dust removal and dehumidification mechanism 2 is fixedly assembled on the side of the material guide cover 101 away from the drying drum 1. The dust removal and dehumidification mechanism 2 includes a dehumidification cylinder 201, which is in communication with the material guide cover 101. The dehumidification cylinder 201 provides a basis for guiding the high-temperature and humid air inside the drying drum 1.

[0044] like Figures 1 to 2 As shown, a filter screen 202 is rotatably mounted inside the dehumidification cylinder 201. The filter screen 202 filters and removes dust and impurities from the high-temperature humid air extracted during the operation of the dehumidification fan 206.

[0045] like Figures 1 to 4 As shown, multiple sets of evenly distributed drying screens 203 are fixedly assembled inside the filter screen cylinder 202. The drying screens 203 serve to contain and limit the drying filler 215.

[0046] like Figures 1 to 2 As shown, each of the multiple drying mesh trays 203 is filled with drying filler 215. The drying filler 215 dehumidifies the moisture after dust removal.

[0047] Specifically, silica gel desiccant can be used for the drying filler 215.

[0048] like Figures 1 to 2As shown, a waste discharge pipe 204 is fixedly installed below the dehumidification cylinder 201. The waste discharge pipe 204 discharges the impurities scraped off from the outside of the filter screen cylinder 202.

[0049] like Figures 1 to 2 As shown, a collection cylinder 216 is threadedly connected to the lower part of the discharge pipe 204. The collection cylinder 216 collects the impurities filtered out in the dust removal chamber 208.

[0050] like Figures 1 to 2 As shown, a cleaning brush 205 is fixedly mounted on the inner wall of the dehumidification cylinder 201, and the cleaning brush 205 is in contact with the outer surface of the filter screen cylinder 202. The impurities adhering to the outer surface of the filter screen cylinder 202 are cleaned by the relative movement of the cleaning brush 205 and the outer surface of the filter screen cylinder 202.

[0051] like Figure 1 As shown, a dehumidifying fan 206 is fixedly mounted on the side of the filter screen cylinder 202 away from the material guide cover 101. The high-temperature moisture inside the drying drum 1 is extracted by controlling the operation of the dehumidifying fan 206.

[0052] Specifically, the dehumidifier 206 is commercially available and can be purchased and used directly.

[0053] like Figures 1 to 2 As shown, an inner partition 207 is fixedly installed inside the dehumidification cylinder 201. The inner partition 207 serves to limit the assembly of the drive gear ring 210. The inner partition 207 and the filter screen cylinder 202 divide the dehumidification cylinder 201 into a dust removal chamber 208 and an exhaust chamber 209. The dehumidification fan 206 is fixedly installed in the exhaust chamber 209. The high-temperature humid air extracted from the drying drum 1 is filtered and guided through the dust removal chamber 208. The dehumidified and dust-removed humid air is discharged through the exhaust chamber 209.

[0054] like Figures 1 to 4 As shown, a drive gear ring 210 is rotatably mounted inside the inner partition 207, and the drive gear ring 210 is fixedly connected to the filter screen cylinder 202. The drive gear ring 210 serves to assemble, fix, and drive the rotation of the filter screen cylinder 202.

[0055] like Figures 1 to 4 As shown, a transmission gear 211 meshes below the drive gear ring 210. The transmission gear 211 transmits power to the rotating shaft 212, so that the filter screen cylinder 202 can rotate synchronously with the rotating shaft 212 under the meshing action of the drive gear ring 210 and the transmission gear 211.

[0056] like Figures 1 to 4 As shown, a rotating shaft 212 is fixedly connected inside the transmission gear 211. The rotating shaft 212 serves to assemble, fix, and drive the transmission gear 211.

[0057] like Figures 1 to 4 As shown, a gear cover 213 is rotatably connected to the outer side of the rotating shaft 212, and the gear cover 213 is fixedly assembled on the outer side of the dehumidifying cylinder 201. The gear cover 213 provides assembly limitation for the rotating shaft 212.

[0058] like Figures 1 to 4 As shown, a rotating handwheel 214 is fixedly connected to one end of the rotating shaft 212 located outside the gear housing 213. The transmission gear 211 is driven to rotate by controlling the rotation of the rotating handwheel 214.

[0059] like Figures 5 to 7 As shown, the waste heat return mechanism 3 is fixedly mounted on the side of the dehumidification cylinder 201 away from the material guide cover 101. The waste heat return mechanism 3 includes an exhaust pipe 301, which is connected to the dehumidification cylinder 201. The exhaust pipe 301 is used to exhaust the gas that has been dehumidified and dust-free inside the dehumidification cylinder 201.

[0060] like Figures 5 to 7 As shown, an elastic insulated return pipe 302 is fixedly connected to the end of the exhaust pipe 301 away from the dehumidification cylinder 201. The elastic insulated return pipe 302 serves to connect the exhaust pipe 301 and the distribution pipe 303.

[0061] like Figures 5 to 7 As shown, a distribution pipe 303 is fixedly connected to the end of the flexible heat-insulating return pipe 302 away from the exhaust pipe 301. The distribution pipe 303 serves to connect the flexible heat-insulating return pipe 302 with multiple guide pipes 309, facilitating the delivery of the dust-removed and dehumidified gas into the multiple guide pipes 309.

[0062] like Figures 5 to 7 As shown, a tube frame 304 is fitted onto the outer side of the distribution tube 303, and the tube frame 304 is fixedly assembled to one side of the drying drum 1. The distribution tube 303 is assembled and fixed by the tube frame 304.

[0063] like Figures 5 to 7 As shown, an upper cover 305 is fitted on top of the drying drum 1. The upper cover 305 serves to limit the position of the drying drum 1 and keep it warm.

[0064] like Figures 1 to 2 As shown, the upper shell 305 and the drying drum 1 cooperate to form a heat-insulating reflux cavity 306. By conveying the dust-removed and dehumidified gas into the heat-insulating reflux cavity 306, the drying drum 1 is heat-insulated and heated, thereby improving the energy efficiency of the drying drum 1.

[0065] like Figures 5 to 7As shown, multiple return pipes 307 are fixedly mounted on the upper part of the upper casing 305, and all of the multiple return pipes 307 are connected to the heat-insulating return cavity 306. The return pipes 307 serve to connect the connecting pipe 308 and the heat-insulating return cavity 306.

[0066] like Figures 5 to 7 As shown, a connecting pipe 308 is fixedly connected above each of the multiple return pipes 307. The connecting pipe 308 serves to connect the return pipes 307 and the guide pipes 309. A guide pipe 309 is fixedly connected between each of the multiple connecting pipes 308 and the distribution pipe 303. The guide pipe 309 serves to connect the distribution pipe 303 and the connecting pipes 308.

[0067] In practical use, the ginkgo leaves to be dried can be added into the feeding pipe 103. Under the guidance of the feeding pipe 103, the ginkgo leaves are conveyed into the drying drum 1. By controlling the clockwise rotation of the drying drum 1, the ginkgo leaves are tumbled and guided within the drying drum 1 under the action of the spiral guide plate 102. Furthermore, the drying drum 1 is heated by conveying the heating medium through the heating channel 107, thereby drying the tumbling ginkgo leaves within the drying drum 1.

[0068] During the drying process, the high-temperature humid air inside the drying drum 1 can be extracted by controlling the operation of the dehumidifying fan 206. The high-temperature humid air is transported to the dust removal chamber 208 under the action of the dehumidifying fan 206. After being removed and dried by the filter screen cylinder 202 and the drying packing 215, it is transported to the heat preservation and return chamber 306 through the exhaust pipe 301, the elastic heat preservation return pipe 302, the distribution pipe 303, the guide pipe 309, the connecting pipe 308 and the return pipe 307. The drying drum 1 is heat preservation and heating treatment by conveying the removed and dried gas into the heat preservation and return chamber 306, thereby recovering and reusing the high-temperature humid air extracted from the drying drum 1.

[0069] After drying, the dried ginkgo leaves inside the drying drum 1 can be discharged along the discharge pipe 104 by controlling the drying drum 1 to rotate counterclockwise.

[0070] In addition, when the filter screen cylinder 202 needs to be cleaned, the rotating shaft 212 can be driven to rotate by manually rotating the rotating handwheel 214. The filter screen cylinder 202 rotates synchronously under the meshing action of the drive gear ring 210 and the transmission gear 211. During the rotation of the filter screen cylinder 202, the cleaning brush 205 can continuously clean the impurities adhering to the outer surface of the filter screen cylinder 202. The cleaned impurities can be guided into the impurity collection cylinder 216 for collection along the impurity discharge pipe 204.

[0071] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ginkgo leaf drying device, characterized in that, include: A drying drum, wherein a material guide cover is hingedly fitted at the port position of the drying drum; A dust removal and dehumidification mechanism is fixedly installed on the side of the material guide cover away from the drying drum. The dust removal and dehumidification mechanism includes a dehumidification cylinder that is in communication with the material guide cover. A filter screen cylinder is rotatably installed inside the dehumidification cylinder. Multiple sets of evenly distributed drying screens are fixedly installed inside the filter screen cylinder. A discharge pipe is fixedly installed below the dehumidification cylinder. A cleaning brush is fixedly installed on the inner wall of the dehumidification cylinder and contacts the outer surface of the filter screen cylinder. A dehumidification fan is fixedly installed on the side of the filter screen cylinder away from the material guide cover. The waste heat return mechanism is fixedly assembled on the side of the dehumidification cylinder away from the material guide cover. The waste heat return mechanism includes an exhaust pipe that is connected to the dehumidification cylinder. An elastic heat-insulating return pipe is fixedly connected to the end of the exhaust pipe away from the dehumidification cylinder.

2. The ginkgo leaf drying equipment according to claim 1, characterized in that, A spiral guide plate is fixedly installed inside the drying drum, a feeding pipe is fixedly installed above the guide cover, and a discharge pipe is fixedly installed below the guide cover. The feeding pipe and the discharge pipe are both arranged corresponding to the drying drum.

3. The ginkgo leaf drying equipment according to claim 1, characterized in that, A heat-insulating base frame is fitted below the drying drum, and the heat-insulating base frame and the drying drum cooperate to form a heating chamber, and a heating channel is fixedly installed inside the heating chamber.

4. The ginkgo leaf drying equipment according to claim 1, characterized in that, An inner partition is fixedly installed inside the dehumidification cylinder. The inner partition and the filter screen cylinder divide the dehumidification cylinder into a dust removal chamber and an exhaust chamber. The dehumidification fan is fixedly installed inside the exhaust chamber.

5. A ginkgo leaf drying device according to claim 4, characterized in that, A drive gear ring is rotatably mounted inside the inner partition plate. The drive gear ring is fixedly connected to the filter screen cylinder. A transmission gear meshes below the drive gear ring.

6. The ginkgo leaf drying equipment according to claim 5, characterized in that, A rotating shaft is fixedly connected inside the transmission gear, and a gear cover is rotatably connected to the outside of the rotating shaft. The gear cover is fixedly assembled on the outside of the dehumidifying cylinder, and a rotating handwheel is fixedly connected to one end of the rotating shaft located outside the gear cover.

7. The ginkgo leaf drying equipment according to claim 1, characterized in that, Each of the multiple sets of drying mesh trays is filled with drying filler, and a collection cylinder is threadedly connected to the bottom of the discharge pipe.

8. The ginkgo leaf drying equipment according to claim 1, characterized in that, The end of the elastic heat-insulating return pipe away from the exhaust pipe is fixedly connected to a distribution pipe, and a pipe frame is fitted on the outside of the distribution pipe. The pipe frame is fixedly assembled on one side of the drying drum.

9. A ginkgo leaf drying device according to claim 8, characterized in that, An upper shell is fitted above the drying drum. The upper shell and the drying drum cooperate to form a heat-insulating reflux cavity. Multiple reflux pipes are fixedly installed above the upper shell, and the multiple reflux pipes are all connected to the heat-insulating reflux cavity.

10. A ginkgo leaf drying device according to claim 9, characterized in that, Each of the multiple return pipes is fixedly connected to a connecting pipe above it, and each of the multiple connecting pipes is fixedly connected to a guide pipe between it and the distribution pipe.

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