Uniform drying device for black tea leaves

By designing a uniform drying device for black tea leaves, and employing multi-layer mesh plates, hot air structure, and sensor control, the problems of uneven drying and low efficiency in traditional black tea drying have been solved, achieving a high-efficiency, energy-saving, and clean drying process.

CN224162852UActive Publication Date: 2026-04-24HUBEI YIDELAI BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI YIDELAI BIOTECHNOLOGY CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional methods of drying dark tea leaves suffer from uneven drying, low efficiency, energy waste, environmental pollution, and difficulties in disposing of residues.

Method used

Design a uniform drying device for black tea leaves, including a drying chamber, a hot air structure, a multi-layer tea leaf placement mesh, temperature and humidity sensors, a controller, and a residue collection box, to achieve intelligent and precise drying and convenient impurity removal.

Benefits of technology

This method achieves uniform drying of black tea leaves, improves drying efficiency, saves energy, reduces labor intensity, and ensures a clean drying environment and convenient equipment maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a black tea leaf uniform drying device which comprises a drying box body and a hot air structure arranged on the upper portion of the drying box body. The drying box body comprises a drying chamber and a recycling chamber, the drying chamber is arranged above the recycling chamber, and the drying chamber communicates with the recycling chamber. The drying device has the beneficial effects that the drying chamber and the recovery chamber in the drying box body are communicated up and down, so that impurities can be conveniently collected and cleaned; and through the arrangement of multiple layers of tea placing net plates, a feeding door and a discharging door, the treatment capacity is increased, and operation is convenient. The hot air structure generates stable hot air, the first filter screen filters impurities, and the drying environment is clean. The heat preservation layer outside the drying chamber reduces heat loss, cost is saved, hot air evenly enters the cavity layer and the air holes, and even drying is achieved. And the temperature sensor and the humidity sensor are matched with the controller, so that intelligent and accurate drying is realized. An air outlet of the recovery chamber and a second filter screen guarantee air circulation and prevent pollution, a residue collection box facilitates centralized cleaning of impurities, and the use and maintenance efficiency of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of black tea processing equipment, and in particular to a uniform drying device for black tea. Background Technology

[0002] As a traditional Chinese specialty tea, the drying process is crucial for dark tea, directly impacting its quality and taste. Traditional dark tea drying methods suffer from several problems, such as uneven drying leading to over- or under-drying, affecting quality; low drying efficiency prolonging production cycles and increasing costs; and a lack of effective monitoring and control of the drying environment, making it impossible to precisely adjust drying parameters to suit different batches. Furthermore, traditional drying equipment is inefficient in heat utilization, resulting in energy waste, and the resulting tea debris and other residues are difficult to collect and process, impacting the working environment and subsequent cleanup. Therefore, there is an urgent need to design a dark tea drying device that achieves uniform drying, improves drying efficiency, precisely controls the drying process, and facilitates easy collection and processing of residues.

[0003] Therefore, it is necessary to propose a device for uniformly drying black tea leaves to address the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a uniform drying device for black tea leaves to solve the above problems.

[0005] A uniform drying device for black tea leaves includes a drying chamber and a hot air structure, wherein the hot air structure is disposed on the upper part of the drying chamber; the drying chamber includes a drying chamber and a recovery chamber, wherein the drying chamber is disposed above the recovery chamber and the drying chamber is connected to the recovery chamber.

[0006] Preferably, the drying chamber is equipped with multiple layers of tea leaf placement mesh, the drying chamber has an inlet door on one side, and the recycling chamber has an outlet door on one side.

[0007] Preferably, the drying chamber is covered with an insulation layer, and a cavity layer is provided outside the insulation layer. The inner wall of the drying chamber is provided with a plurality of air holes, and the air holes are connected to the cavity layer.

[0008] Preferably, the tea-placement mesh plate has sliding strips on both sides, the inner wall of the drying chamber has a sliding groove that cooperates with the sliding strips, and the front of the tea-placement mesh plate has a push-pull handle.

[0009] Preferably, the hot air structure includes a heater, a fan, a hot air duct, and a wind box. The heater and the fan are both located inside the wind box. The wind box is connected to the cavity layer through the hot air duct. An air inlet is provided on one side of the wind box, and a first filter is provided at the air inlet.

[0010] Preferably, the drying chamber is equipped with a temperature sensor, and the tea leaf tray is equipped with a humidity sensor. Both the temperature sensor and the humidity sensor are connected to a controller, and the controller is connected to a heater and a fan.

[0011] Preferably, the recovery chamber has air outlets on both sides, and the air outlets are equipped with second filters.

[0012] Preferably, a residue collection box is placed in the recycling room.

[0013] Compared with existing technologies, this utility model offers the following advantages: The drying chamber and recovery chamber are vertically connected within the drying box, facilitating impurity collection and cleaning, and ensuring a clean drying environment. The multi-layer tea-laying mesh, inlet door, and outlet door increase processing capacity and simplify operation, improving work efficiency. The hot air structure generates stable hot air, and the first filter filters impurities, ensuring a clean drying environment. The insulation layer outside the drying chamber reduces heat loss, saving costs, while the cavity layer and air vents allow for even hot air entry, achieving uniform drying. Temperature and humidity sensors work in conjunction with the controller to achieve intelligent and precise drying. The air outlet and second filter in the recovery chamber ensure air circulation and prevent contamination, while the residue collection box facilitates centralized cleaning of impurities, improving the efficiency of device use and maintenance. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention;

[0015] Figure 2 This is a diagram of the internal structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model;

[0017] Figure 4 This is the drying chamber of this utility model;

[0018] Figure 5 This is a structural diagram of the tea-holding mesh plate of this utility model;

[0019] Figure 6 This is a diagram of the internal structure of the bellows of this utility model;

[0020] Figure 7 This is a block diagram of the controller module of this utility model.

[0021] The attached diagram is labeled as follows: 1. Drying chamber; 11. Drying room; 111. Tea leaf placement mesh; 112. Feeding door; 113. Insulation layer; 114. Cavity layer; 115. Air vent; 116. Sliding strip; 117. Sliding groove; 118. Push-pull handle; 12. Recovery chamber; 121. Discharge door; 122. Air outlet; 123. Second filter screen; 124. Residue collection box; 2. Hot air structure; 21. Heater; 22. Fan; 23. Hot air duct; 24. Air box; 25. Air inlet; 26. First filter screen; 31. Temperature sensor; 32. Humidity sensor; 33. Controller. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0026] like Figure 1 and combined Figures 2 to 7As shown, a uniform drying device for black tea leaves includes a drying chamber 1 and a hot air structure 2, wherein the hot air structure 2 is disposed on the upper part of the drying chamber 1; the drying chamber 1 includes a drying chamber 11 and a recovery chamber 12, wherein the drying chamber 11 is disposed above the recovery chamber 12 and the drying chamber 11 is connected to the recovery chamber 12.

[0027] Furthermore, the drying chamber 11 is equipped with a multi-layer tea leaf placement mesh 111, the drying chamber 11 has an inlet door 112 on one side, and the recycling chamber 12 has an outlet door 121 on one side.

[0028] The benefits of adopting further technical solutions are as follows: the setting of multi-layer tea placing mesh 111 increases the placement space for black tea, increases the single processing capacity of the drying device, and improves the drying efficiency; the feeding door 112 facilitates the placement of black tea on the tea placing mesh 111, and the discharging door 121 facilitates the removal of tea debris and other impurities collected in the recycling chamber 12.

[0029] Furthermore, the drying chamber 11 is wrapped with an insulation layer 113, and a cavity layer 114 is provided outside the insulation layer 113. The inner wall of the drying chamber 11 is provided with a plurality of air holes 115, and the air holes 115 are connected to the cavity layer 114.

[0030] The benefits of adopting further technical solutions are as follows: the heat insulation layer 113 can effectively reduce heat loss in the drying chamber 11, reduce energy consumption, and save drying costs; the interconnected design of the cavity layer 114 and the air vents 115 allows the hot air generated by the hot air structure 2 to enter the drying chamber 11 evenly through the cavity layer 114 and the air vents 115, ensuring the uniformity of temperature in the drying chamber, thereby achieving uniform drying of black tea leaves and improving drying quality.

[0031] Furthermore, the tea placing mesh plate 111 is provided with sliding strips 116 on both sides, the inner wall of the drying chamber 11 is provided with a sliding groove 117 that cooperates with and connects to the sliding strips 116, and the front part of the tea placing mesh plate 111 is provided with a push-pull handle 118.

[0032] The adoption of further technical solutions has the following benefits: the cooperation between the slide bar 116 and the slide groove 117 allows the tea placing screen 111 to slide easily in the drying chamber 11, making it convenient for operators to pull out the tea placing screen 111 for placing, turning and taking out black tea leaves; the setting of the push-pull handle 118 further improves the convenience of operation, reduces the labor intensity of operators, and also facilitates the fixing and positioning of the tea placing screen 111.

[0033] Furthermore, the hot air structure 2 includes a heater 21, a fan 22, a hot air duct 23, and a wind box 24. The heater 21 and the fan 22 are both located inside the wind box 24. The wind box 24 is connected to the cavity layer 114 through the hot air duct 23. An air inlet 25 is provided on one side of the wind box 24, and a first filter screen 26 is provided on the air inlet 25.

[0034] The advantages of adopting further technical solutions are as follows: the combination of heater 21 and fan 22 can generate hot air, which is then transported to cavity layer 114 through hot air duct 23, providing a stable heat source for drying black tea leaves; the setting of air inlet 25 ensures the circulation of air in air box 24, and the first filter 26 can filter impurities in the air entering air box 24, preventing impurities from entering drying chamber 11 and contaminating black tea leaves, ensuring a clean drying environment, and also extending the service life of each component in hot air structure 2.

[0035] Furthermore, a temperature sensor 31 is provided in the drying chamber 11, and a humidity sensor 32 is provided on the tea placing mesh plate 111. Both the temperature sensor 31 and the humidity sensor 32 are connected to the controller 33, which is connected to the heater 21 and the fan 22.

[0036] The benefits of adopting further technical solutions are as follows: Temperature sensor 31 and humidity sensor 32 can monitor the temperature and humidity of the black tea leaves in the drying chamber 11 in real time and feed the data back to controller 33. Controller 33 automatically adjusts the heating power of heater 21 and the air volume of fan 22 according to preset temperature and humidity parameters, so as to realize intelligent control of the drying process, ensure that the black tea leaves are dried under the best temperature and humidity conditions, improve the accuracy of drying and the quality of black tea leaves, and at the same time reduce manual intervention and reduce labor intensity.

[0037] Furthermore, the recovery chamber 12 has air outlets 122 on both sides, and the air outlets 122 are equipped with second filters 123.

[0038] The benefits of adopting further technical solutions are as follows: the air outlet 122 can discharge the humid air in the recovery chamber 12, ensuring air circulation in the recovery chamber 12 and preventing the accumulation of humid air from affecting the drying effect; the second filter 123 can filter out impurities such as tea leaves carried in the air, preventing the impurities from polluting the working environment after discharge, and also preventing external debris from entering the recovery chamber 12, thus ensuring the stability and cleanliness of the entire device operation.

[0039] Furthermore, a residue collection box 124 is placed inside the recycling chamber 12.

[0040] The benefits of adopting a further technical solution are as follows: The setting of the residue collection box 124 facilitates the centralized collection of tea leaves and other impurities that fall from the drying chamber 11 into the recycling chamber 12, making it easier to clean and handle, keeping the recycling chamber 12 clean, and also preventing the accumulation of impurities from affecting the normal operation of the device, thus improving the ease of use and maintenance efficiency of the device.

[0041] Compared with existing technologies, this utility model offers the following advantages: The drying chamber 11 and the recovery chamber 12 in the drying box 1 are vertically connected, facilitating impurity collection and cleaning, and ensuring a clean drying environment. The multi-layer tea leaf placement mesh 111, the inlet door 112, and the outlet door 121 increase processing capacity and facilitate operation, improving work efficiency. The hot air structure 2 generates stable hot air, and the first filter 26 filters impurities, ensuring a clean drying environment. The insulation layer 113 outside the drying chamber 11 reduces heat loss, saving costs, while the cavity layer 114 and air holes 115 allow hot air to enter evenly, achieving uniform drying. The temperature sensor 31, humidity sensor 32, and controller 33 work together to achieve intelligent and precise drying. The air outlet 122 and the second filter 123 of the recovery chamber 12 ensure air circulation and prevent pollution, while the residue collection box 124 facilitates centralized cleaning of impurities, improving the efficiency of device use and maintenance.

[0042] Working principle: The fan 22 draws air into the air box 24 through the air inlet 25. After being filtered by the first filter screen 26, the air is heated by the heater 21. The hot air enters the cavity layer 114 outside the drying chamber 11 through the hot air duct 23, and then evenly enters the drying chamber 11 through the air holes 115. Tea leaves are placed on the multi-layer tea leaf placement mesh plate 111 through the feeding door 112. The sliding strip 116 and the sliding groove 117 cooperate to facilitate the entry and exit of the mesh plate. The temperature sensor 31 in the drying chamber 11 and the humidity sensor 32 on the tea leaf placement mesh plate 111 monitor the environmental and tea leaf humidity data in real time and feed it back to the controller 33. The controller 33 adjusts the heater 21 and the fan 22 accordingly to achieve precise drying. The hot air and impurities generated during the drying process enter the recovery chamber 12 through the connection between the drying chamber 11 and the recovery chamber 12, and are discharged through the air outlet 122. The second filter screen 123 prevents impurities from being discharged. The residue collection box 124 collects the tea leaf residue that falls during the drying process. Finally, the dried tea leaves are taken out through the discharge door 121.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A device for uniformly drying black tea leaves, characterized in that: It includes a drying chamber (1) and a hot air structure (2), wherein the hot air structure (2) is located on the upper part of the drying chamber (1); the drying chamber (1) includes a drying chamber (11) and a recovery chamber (12), wherein the drying chamber (11) is located above the recovery chamber (12), and the drying chamber (11) and the recovery chamber (12) are connected.

2. The uniform drying device for black tea leaves as described in claim 1, characterized in that: The drying chamber (11) is equipped with a multi-layer tea-placement mesh (111), and the drying chamber (11) has an inlet door (112) on one side and an outlet door (121) on one side.

3. The uniform drying device for black tea leaves as described in claim 1, characterized in that: The drying chamber (11) is wrapped with an insulation layer (113), and a cavity layer (114) is provided outside the insulation layer (113). The inner wall of the drying chamber (11) is provided with a number of air holes (115), and the air holes (115) are connected to the cavity layer (114).

4. The uniform drying device for black tea leaves as described in claim 2, characterized in that: The tea placing mesh plate (111) has sliding strips (116) on both sides, the inner wall of the drying chamber (11) has a sliding groove (117) that is connected to the sliding strips (116), and the front part of the tea placing mesh plate (111) has a push-pull handle (118).

5. The uniform drying device for black tea leaves as described in claim 1, characterized in that: The hot air structure (2) includes a heater (21), a fan (22), a hot air duct (23), and a wind box (24). The heater (21) and the fan (22) are both located inside the wind box (24). The wind box (24) is connected to the cavity layer (114) through the hot air duct (23). An air inlet (25) is provided on one side of the wind box (24), and a first filter screen (26) is provided on the air inlet (25).

6. The uniform drying device for black tea leaves as described in claim 2, characterized in that: The drying chamber (11) is equipped with a temperature sensor (31), and the tea placing mesh plate (111) is equipped with a humidity sensor (32). The temperature sensor (31) and the humidity sensor (32) are both connected to the controller (33), and the controller (33) is connected to the heater (21) and the fan (22).

7. The uniform drying device for black tea leaves as described in claim 1, characterized in that: The recycling chamber (12) has air outlets (122) on both sides, and the air outlets (122) are equipped with second filters (123).

8. The uniform drying device for black tea leaves as described in claim 1, characterized in that: The recycling chamber (12) contains a residue collection box (124).