A multi-layer drying mechanism for processing mulberry leaf tea

By designing a multi-layered, interconnected material cylinder structure in the mulberry leaf tea processing, the problem of hot air carrying moisture affecting the dryness of the upper mulberry leaves was solved, achieving a uniform drying effect for the mulberry leaves.

CN224470726UActive Publication Date: 2026-07-07SICHUAN QUANYITENG AGRICULTURAL DEVELOPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN QUANYITENG AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-07-02
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the current mulberry leaf tea drying process, the hot air carries away the moisture from the lower layer of mulberry leaves during drying, affecting the dryness of the upper layer and resulting in uneven drying.

Method used

A multi-layer drying mechanism is designed, with air chambers set on the outer ring of the material cylinder and interconnected with each other. Hot air enters the material cylinder from the bottom and directly discharges water vapor, ensuring that each layer of mulberry leaves is heated evenly. Uniform drying is achieved through the design of partitions and air holes.

Benefits of technology

This process ensures that each layer of mulberry leaves is thoroughly dried, avoiding the influence of moisture and guaranteeing a uniform drying effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of mulberry leaf tea drying technology, and discloses a multi-layer drying mechanism for mulberry leaf tea processing, including a heating base and multiple material cylinders. The material cylinders are stacked sequentially on top of the heating base, with a top cover covering the surface of the uppermost material cylinder. A horizontal plate is fixed inside the heating base, and an upward-blowing fan is installed inside the heating base below the middle of the horizontal plate. Heating wires are installed inside the heating base, and air pipes are provided on both sides of the heating base and both sides of the material cylinders. This utility model's technical solution allows multiple material cylinders to be stacked sequentially on top of the heating base, so that each material cylinder has an air chamber on its outer ring that can be interconnected. During drying, hot air without moisture flows into each material cylinder from the bottom and flows directly out of the heating base. After drying, the hot air containing moisture is discharged directly from the connecting pipes, ensuring that the mulberry leaves in each layer of material cylinders are fully dried to a sufficient degree of dryness.
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Description

Technical Field

[0001] This utility model relates to the field of mulberry leaf tea drying technology, specifically a multi-layer drying mechanism for mulberry leaf tea processing. Background Technology

[0002] Mulberry leaf tea is a beverage made from mulberry leaves. It is rich in nutrients such as amino acids and flavonoids, has a refreshing aroma and a sweet taste, and has the effects of dispelling wind-heat, clearing the lungs and moisturizing dryness. It can help relieve wind-heat colds and lung-heat coughs. Daily consumption can clear heat and reduce inflammation, and beautify the skin. It is suitable for most people. It is more effective when brewed with warm water at around 80℃. Mulberry leaves need to be dried during the production of mulberry leaf tea.

[0003] To achieve efficient drying, existing technologies use a multi-layered, steamer-like structure to allow hot air to flow from bottom to top, simultaneously drying multiple layers of mulberry leaves. However, the hot air carries moisture from the lower layers of leaves, significantly affecting the dryness of the upper layers. Therefore, we propose a multi-layered drying mechanism for mulberry leaf tea processing. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer drying mechanism for processing mulberry leaf tea. By setting multiple material cylinders, multiple layers can be stacked sequentially above a heating base, so that the outer ring of each material cylinder is provided with an air chamber that can be interconnected. During drying, hot air without moisture flows into each material cylinder from the bottom and flows directly out of the heating base. After drying, the hot air containing moisture is discharged directly from the connecting pipe, ensuring that the mulberry leaves in each layer of material cylinder are fully dried to a sufficient degree of dryness, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer drying mechanism for mulberry leaf tea processing, comprising a heating base and multiple material cylinders, the material cylinders being stacked sequentially above the heating base, the surface of the uppermost material cylinder being covered with a top cover, a horizontal plate being fixed inside the heating base, an upward-blowing fan being installed inside the heating base below the middle position of the horizontal plate, and an electric heating wire being installed inside the heating base; air pipes are provided on both sides of the surface of the heating base and on both sides of the surface of the material cylinders, the air pipes on the surface of the heating base connecting to the upper part of its interior, the air pipes of the material cylinders connecting to an air cavity provided on the outer ring of the material cylinders, the air pipes being inserted into the insertion ports provided on both sides of the bottom of the material cylinders and communicating with the interior of the air cavity, a partition plate being fixed horizontally at the lower part of the interior of the material cylinders, the air cavity communicating with the interior of the material cylinders below the partition plate through through holes evenly provided on the inner wall surface of the material cylinders, and air holes evenly provided on the surface of the partition plate, and multiple connecting pipes connecting the interior and exterior are evenly provided on the upper outer ring of the material cylinders.

[0006] By adopting the above technical solution, after mulberry leaves are laid inside the material cylinder, they are stacked sequentially on top of the heating base, and the air chambers of the material cylinders are interconnected and connected to the heating base. The hot air flowing out of the heating base can directly enter the interior of different material cylinders to dry the mulberry leaves, avoiding the drying effect of water vapor carried by the hot air.

[0007] Optionally, the heating base has a support foot fixed to its bottom outer ring, and multiple support feet are provided.

[0008] By adopting the above technical solution, the base is supported to a certain height, ensuring smooth airflow at the bottom.

[0009] Optionally, a sealing ring is fixedly attached to the inner surface of the inlet, and when the trachea is inserted into the inlet, the sealing ring contacts the outer surface of the trachea.

[0010] By adopting the above technical solution, a good sealing effect is achieved between the intubation port and the trachea.

[0011] Optionally, rubber sleeves are fitted onto the air pipes on both sides of the uppermost material cylinder, and the rubber sleeves block the air pipes of the uppermost material cylinder.

[0012] By adopting the above technical solution, the uppermost air pipe is sealed with a rubber sleeve to prevent the leakage of hot air.

[0013] Optionally, a mesh plate is horizontally fixed inside the material cylinder above the partition, and the mesh plate is parallel to the partition.

[0014] By adopting the above technical solution, the mulberry leaves are separated from the partition and laid on the surface of the mesh plate.

[0015] Optionally, a temperature sensor is installed on the inner wall surface of the heating base above the cross plate.

[0016] By adopting the above technical solution, the heating temperature inside the heating base is monitored by a temperature sensor.

[0017] Optionally, the inlet below the fan is connected to the outside of the heating base through the lower opening on the surface of the heating base, and the outlet above the fan is connected to the inside of the heating base above the horizontal plate through the upper opening on the surface of the horizontal plate.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] 1. The technical solution of this application sets up multiple material cylinders that can be stacked in layers above the heating base. Each material cylinder has an air chamber on its outer ring that can be interconnected. During drying, hot air without moisture flows into each material cylinder from the bottom and flows directly out of the heating base. After drying, the hot air containing moisture is discharged directly from the connecting pipe, which avoids the upper layer of mulberry leaves from being affected by moisture and thus ensures that the mulberry leaves in each layer of material cylinder are fully dried to a sufficient degree of dryness.

[0020] 2. The technical solution of this application introduces the hot air in the air chamber into the material cylinder below the partition first, and then flows evenly upward from the air hole, so as to ensure that the mulberry leaves are heated evenly and dried evenly. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the multi-layer drying mechanism for processing mulberry leaf tea according to this utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of the multi-layer drying mechanism for processing mulberry leaf tea according to this utility model.

[0024] Figure 3 This is a schematic diagram of a single material cylinder structure of the multi-layer drying mechanism for processing mulberry leaf tea according to this utility model.

[0025] In the diagram: 1. Heating base; 11. Horizontal plate; 111. Upper opening; 12. Fan; 121. Lower opening; 13. Heating wire; 14. Support leg; 15. Temperature sensor; 2. Barrel; 21. Air chamber; 211. Insert; 212. Through hole; 213. Sealing ring; 22. Partition; 221. Air hole; 23. Mesh plate; 24. Connecting pipe; 3. Air pipe; 31. Rubber sleeve; 4. Top cover. Detailed Implementation

[0026] Please see Figure 1-3 This utility model provides a technical solution: a multi-layer drying mechanism for processing mulberry leaf tea, including a heating base 1 and multiple material cylinders 2. A horizontal plate 11 is fixed inside the heating base 1. An upward-blowing fan 12 is installed inside the heating base 1 below the middle position of the horizontal plate 11. An electric heating wire 13 is provided inside the heating base 1. The inlet below the fan 12 is connected to the outside of the heating base 1 through the lower opening 121 on the surface of the heating base 1. The outlet above the fan 12 is connected to the inside of the heating base 1 above the horizontal plate 11 through the upper opening 111 on the surface of the horizontal plate 11.

[0027] A dustproof mesh is fixed inside the lower opening 121 to prevent dust from the outside air from being drawn in when the fan 12 is working. The bottom outer ring of the heating base 1 is fixed with a support leg 14. Multiple support legs 14 are provided. When the fan 12 and the heating wire 13 are started, the outside air is drawn in from the lower opening 121 and sent into the heating base 1 below the horizontal plate 11 through the upper opening 111. It will be heated by the heating wire 13. A temperature sensor 15 is installed on the inner wall surface of the heating base 1 above the horizontal plate 11. The temperature sensor 15 monitors the temperature of the heated air.

[0028] Air pipes 3 are provided on both sides of the surface of the heating base 1. The air pipes 3 on the surface of the heating base 1 are connected to the upper part of its interior. The heated air will flow upward from the air pipes 3. The material cylinders 2 are stacked on the heating base 1 in sequence, and air pipes 3 are provided on both sides of the surface of each material cylinder 2. The air pipes 3 are connected to the air chambers 21 provided on the outer ring of the material cylinder 2. At this time, the air pipes 3 are inserted into the inlets 211 provided on both sides of the bottom of the material cylinder 2 and communicate with the interior of the air chambers 21, so that the air chambers 21 of each material cylinder 2 are interconnected and directly connected to the upper part of the interior of the heating base 1. A sealing ring 213 is fixedly attached to the inner ring surface of the inlet 211. When the air pipe 3 is inserted into the inlet 211, the sealing ring 213 is in contact with the outer surface of the air pipe 3 to maintain a good sealing effect.

[0029] A partition 22 is horizontally fixed inside the lower part of the material cylinder 2. The air chamber 21 is connected to the inside of the material cylinder 2 below the partition 22 through the through holes 212 evenly arranged on the inner wall surface of the material cylinder 2. The hot air flowing from the heating base 1 into the air chamber 21 will enter the material cylinder 2 below the partition 22 through the through holes 212. The surface of the partition 22 is evenly provided with air holes 221. A mesh plate 23 is horizontally fixed inside the material cylinder 2 above the partition 22. The mesh plate 23 is parallel to the partition 22. Mulberry leaves can be laid on the surface of the mesh plate 23. In order to avoid the residue falling below the mesh plate 23, gauze can be laid on the surface of the mesh plate 23 first and then the mulberry leaves can be laid. The hot air entering below the partition 22 can flow evenly upward from the air cylinder to dry the mulberry leaves evenly. Since the hot air flows directly from the inside of the heating base 1, there is no problem of the hot air containing moisture affecting the drying effect.

[0030] The top layer of material cylinder 2 is covered with a top cover 4, while the bottom layer of material cylinder 2 is blocked by the top layer of material cylinder 2. Multiple connecting pipes 24 that connect the inside and outside are evenly arranged on the outer ring above the material cylinder 2. After drying, the hot air containing water vapor is finally discharged to the outside through the connecting pipes 24, carrying the water vapor.

[0031] Finally, rubber sleeves 31 are fitted onto the air pipes 3 on both sides of the uppermost material cylinder 2. The rubber sleeves 31 block the air pipes 3 of the uppermost material cylinder 2, causing hot air to leak out of the air pipes 3 of the uppermost material cylinder 2 and wasting heat.

[0032] During use, the top cover 4 and all the material cylinders 2 are removed and placed on the surface of the mesh plate 23. To prevent debris from falling through the mesh plate 23, gauze is first laid on the surface of the mesh plate 23 before the mulberry leaves are laid on top. First, one material cylinder 2 is supported above the heating base 1, and the two air pipes 3 on the surface of the heating base 1 are inserted into the two inlets 211 at the bottom of the material cylinder 2, so that the air pipes 3 are connected to the air chamber 21 of the material cylinder 2. Then, in the same way, multiple layers of material cylinders 2 are supported and stacked above the bottom material cylinder 2, and the air chambers 21 of all material cylinders 2 are connected. Finally, the top layer is placed on top of the bottom material cylinder 2. A cover 4 is placed on top of the material cylinder 2, and the two air pipes 3 on the surface of the uppermost material cylinder 2 are sealed with rubber sleeves 31. The fan 12, heating wire 13 and temperature sensor 15 are all connected to the industrial control equipment. The heating wire 13 is activated to heat the air, and the hot air is blown upward by the fan 12 and enters the air chamber 21 of each material cylinder 2. Then it enters the material cylinder 2 below the partition 22 through the through hole 212. After that, it flows upward through the air holes 221 evenly distributed on the upper surface of the partition 22 and dries the mulberry leaves evenly through the mesh plate 23. The air carrying moisture is finally discharged to the outside through the connecting pipe 24 of the outer ring.

Claims

1. A multi-layer drying mechanism for mulberry leaf tea processing, comprising a heating base (1) and a plurality of cartridges (2), the cartridges (2) being stacked in sequence above the heating base (1), characterized in that: The inside of the heating base (1) is fixed with a transverse plate (11), a fan (12) for blowing air upward is installed inside the heating base (1) below the middle position of the transverse plate (11), and an electric heating wire (13) is arranged inside the heating base (1); The surface of the heating base (1) and the surface of the barrel (2) are both provided with air pipes (3), the air pipes (3) on the surface of the heating base (1) are communicated to the upper part inside the heating base (1), the air pipes (3) of the barrel (2) are communicated to the air cavities (21) arranged on the outer ring of the barrel (2), the air pipes (3) are inserted into the sockets (211) arranged on the two sides of the bottom of the barrel (2) to be communicated with the inside of the air cavities (21), a partition plate (22) is fixed horizontally below the inside of the barrel (2), the air cavities (21) are communicated with the inside of the barrel (2) below the partition plate (22) through the through holes (212) uniformly arranged on the inner wall surface of the barrel (2), and air holes (221) are uniformly arranged on the surface of the partition plate (22), a plurality of connecting pipes (24) which are communicated with the inside and the outside are uniformly arranged on the outer ring of the upper part of the barrel (2).

2. The multi-layer drying mechanism for processing mulberry leaf tea according to claim 1, characterized in that: The outer ring of the bottom of the heating base (1) is fixed with supporting legs (14), and the supporting legs (14) are provided with a plurality of supporting legs.

3. The multi-deck drying mechanism for processing mulberry leaf tea according to claim 1, characterized in that: The inner ring surface of the socket (211) is fixedly attached with a sealing ring (213), and when the air pipe (3) is inserted into the socket (211), the sealing ring (213) is attached to the outer surface of the air pipe (3).

4. The multi-deck drying mechanism for processing mulberry leaf tea according to claim 1, characterized in that: Rubber sleeves (31) are sleeved on the air pipes (3) on the two sides of the uppermost barrel (2), and the rubber sleeves (31) block the air pipes (3) of the uppermost barrel (2).

5. The multi-deck drying mechanism for processing mulberry leaf tea according to claim 1, characterized in that: A mesh plate (23) is fixed horizontally inside the barrel (2) above the partition plate (22), and the mesh plate (23) is parallel to the partition plate (22).

6. The multi-deck drying mechanism for processing mulberry leaf tea according to claim 1, characterized in that: A temperature sensor (15) is arranged on the inner wall surface of the heating base (1) above the transverse plate (11).

7. The multi-layer drying mechanism for mulberry leaf tea processing according to claim 1 or 2, characterized in that: The inlet below the fan (12) is communicated to the outside of the heating base (1) through the lower through hole (121) on the surface of the heating base (1), and the outlet above the fan (12) is communicated to the inside of the heating base (1) above the transverse plate (11) through the upper through hole (111) on the surface of the transverse plate (11).

8. The multi-deck drying mechanism for processing mulberry leaf tea according to claim 1, characterized in that: An upper cover (4) is arranged on the surface of the uppermost barrel (2).