Dynamic fermentation system for black tea
By setting up a guide unit and a air supply unit on the top of the black tea fermentation chamber, the tea leaves quickly enter the fermentation state, solving the problem of long fermentation time of tea leaves and improving fermentation efficiency.
Patent Information
- Application Number
- CN202422718001.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the existing black tea fermentation device, the tea leaves enter the fermentation state slowly, resulting in a longer fermentation time and low efficiency.
A guide unit is arranged on the top of the fermentation chamber. After mixing the fresh air and the fermentation chamber gas through the air supply unit, it is guided to the uppermost mesh belt conveying layer, providing a specific temperature, humidity and oxygen environment for the tea leaves, and using the guide unit to make the tea enter the fermentation state faster.
The fermentation time is shortened, the efficiency of black tea fermentation is improved, and the tea leaves enter the fermentation state faster, reducing unnecessary time consumption.
Smart Images
Figure CN223232011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of black tea fermentation, in particular to a black tea dynamic fermentation system. Background Art
[0002] Black tea is a fully fermented tea, named for its red tea soup. The production process involves picking, withering, rolling, fermenting, drying, and packaging, resulting in a tea with a richer flavor and aroma.
[0003] During the fermentation process, the duration and environmental conditions (such as temperature and humidity) are crucial to the flavor of black tea. The tea leaves gradually turn a dark brown, and the tea soup takes on a vibrant red color. During this process, the bitterness of black tea gradually decreases, and its sweetness and rich aroma emerge, forming its unique flavor profile. After fermentation is complete, the tea leaves are dried to halt the fermentation process and lock in these flavors. This process allows black tea to develop its captivating color, aroma, and rich taste, making it a popular tea beverage.
[0004] CN116762876A discloses a black tea fermentation device, comprising: a steam boiler, a fermentation box, a bracket supporting the fermentation box, a fermentation bed, a feeding conveyor, a tea feeding device, a leaf thickness uniformizer, a transmission chain and a motor, wherein the steam boiler is connected to the fermentation box via a pipeline, the lower end of the pipeline is split to form a first outlet; the fermentation bed is arranged in the fermentation box via a rotating shaft; the feeding conveyor is used to transport black tea embryos to the tea feeding device, and the tea feeding device transports the black tea embryos to the fermentation bed; the leaf thickness uniformizer is located behind the tea feeding device; and the motor is connected to the fermentation bed via a transmission chain.
[0005] The black tea fermentation device of the aforementioned technical solution utilizes a steam boiler for fermentation, enabling controllable fermentation temperature and humidity, significantly shortening fermentation time and saving fermentation space. However, the steam output by the steam boiler contains very low oxygen content, so the tea leaves do not ferment quickly after entering the fermentation chamber, resulting in a longer overall fermentation time. Utility Model Content
[0006] The purpose of this application is to provide a dynamic fermentation system for black tea, which aims to solve the problem of slow entry of tea into the fermentation state. This fermentation system sets a guide unit on the top of the fermentation chamber. The air supply unit can transport the mixed gas composed of fresh air and gas in the fermentation chamber to the mesh belt conveyor layer at the top, providing a specific temperature, humidity and oxygen environment for the tea newly entering the fermentation chamber, so that the tea newly entering the fermentation chamber can enter the fermentation state faster, reduce unnecessary time in the fermentation process, and improve efficiency.
[0007] To achieve the above objectives, this application provides the following technical solutions:
[0008] A black tea dynamic fermentation system includes a fermentation chamber, a conveying unit located in the fermentation chamber, a guide unit located at the top of the fermentation chamber, an air supply unit located on the side wall of the fermentation chamber, and an exhaust unit located at the lower part of the side wall of the fermentation chamber; the air supply unit is connected to an external constant temperature air supply device;
[0009] The conveying unit is provided with multiple mesh belt conveying layers for conveying tea leaves, and humidification modules are provided on both sides of each mesh belt conveying layer;
[0010] The exhaust unit is used to extract the gas in the fermentation chamber to the air supply unit and mix it with the hot air delivered by the air supply unit; the output end of the air supply unit faces the guide unit, and under the action of the guide unit, the mixed gas is guided to the mesh belt conveyor layer at the top.
[0011] Preferably, the guide unit includes a bracket connected to the top of the fermentation chamber and a guide plate connected to the bracket. The guide plate is provided with an arc bending portion, which is located above the conveying unit. The arc bending portion is used to guide the mixed gas output by the air supply unit to the mesh belt conveying layer located on the top layer.
[0012] Preferably, the guide plates are arranged symmetrically, and the air supply units are arranged on both sides of the fermentation chamber.
[0013] Preferably, the conveying unit comprises a frame, a plurality of mesh belt conveying layers are arranged on the frame from top to bottom, and the conveying directions of two adjacent mesh belt conveying layers are opposite, and the humidification modules are arranged on both sides of the frame.
[0014] Preferably, a baffle is further provided on the frame, and the baffle is arranged below the output end of each mesh belt conveying layer.
[0015] Preferably, the air supply unit includes a main pipe and multiple branch pipes connected to the main pipe, the multiple branch pipes are arranged on the side of the fermentation chamber, the main pipe is connected to the external constant temperature air supply device, and the output end of the exhaust unit is connected to the main pipe.
[0016] Preferably, the exhaust unit includes an exhaust pipe connected to the lower part of the side wall of the fermentation chamber and an exhaust mechanism connected to the exhaust pipe, the exhaust pipe is located below the output end of the air supply unit, and the output end of the exhaust mechanism is connected to the air supply unit.
[0017] Preferably, the humidification module includes a tube body and multiple output tubes connected to the tube body. The tube body is connected to an external water mist generator. The output tubes are horizontally arranged and connected to the side of the conveying unit. The multiple output tubes match the position of the mesh belt conveying layer, and multiple spray heads are provided on the output tubes.
[0018] Preferably, an exhaust pipe is further provided on the side wall of the fermentation chamber, and the exhaust pipe is located at the upper part of the side wall of the fermentation chamber. A temperature sensor and a humidity sensor are also provided in the fermentation chamber.
[0019] Compared with the prior art, the present invention has the following advantages:
[0020] The present application sets a guide unit at the top of the fermentation chamber, and the air supply unit can transport the mixed gas composed of fresh air and the gas in the fermentation chamber to the mesh belt conveyor layer at the top, providing a specific temperature, humidity and oxygen environment for the tea leaves newly entering the fermentation chamber, so that the tea leaves newly entering the fermentation chamber can enter the fermentation state faster, reduce unnecessary time in the fermentation process, and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 Schematic diagram of the internal structure of the black tea dynamic fermentation system of Example 1 of the present application;
[0022] Figure 2 This is one of the cross-sectional structural schematic diagrams of the black tea dynamic fermentation system of Example 1 of the present application;
[0023] Figure 3 This is the second schematic cross-sectional structure diagram of the black tea dynamic fermentation system of Example 1 of the present application.
[0024] The reference numerals are as follows:
[0025] Fermentation chamber 1; conveying unit 2; guide unit 3; air supply unit 4; exhaust unit 5; exhaust pipe 11; mesh belt conveyor layer 21; humidification module 22; frame 23; baffle 24; bracket 31; guide plate 32; main pipe 41; branch pipe 42; exhaust pipe 51; exhaust mechanism 52; pipe body 221; output pipe 222; spray head 223; arc bending portion 321. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0027] Example 1
[0028] refer to Figures 1 to 3 A black tea dynamic fermentation system includes a fermentation chamber 1, a conveying unit 2 located in the fermentation chamber 1, a guide unit 3 located at the top of the fermentation chamber 1, an air supply unit 4 located on the side wall of the fermentation chamber 1, and an exhaust unit 5 located at the lower part of the side wall of the fermentation chamber 1; the air supply unit 4 is connected to an external constant temperature air supply device;
[0029] The conveying unit 2 is provided with a plurality of mesh belt conveying layers 21 for conveying tea leaves, and a humidifying module 22 is provided on both sides of each mesh belt conveying layer 21;
[0030] The exhaust unit 5 is used to extract the gas in the fermentation chamber 1 to the air supply unit 4 and mix it with the hot air delivered by the air supply unit 4; the output end of the air supply unit 4 faces the guide unit 3, and under the action of the guide unit 3, the mixed gas is guided to the mesh belt conveyor layer 21 located at the top layer.
[0031] Under this design, the tea leaves are put into the top mesh belt conveyor layer 21 of the conveying unit 2 through an external conveyor belt or manual loading. Under the conveyance of the mesh belt conveyor layer 21, the tea leaves will fall from top to bottom at the output end of the upper mesh belt conveyor layer 21 to the lower mesh belt conveyor layer 21, and the tea leaves will be turned over in the process. The air supply unit 4 and the humidification module 22 are mainly used to provide a specific temperature and humidity environment for the fermentation chamber 1. Specifically, the external constant temperature air supply device delivers fresh air of a specific temperature to the air supply unit 4, and cooperates with the exhaust unit 5 to draw the gas with a certain humidity in the fermentation chamber 1 into the air supply unit 4, so that the fresh air is mixed with the gas in the fermentation chamber 1 to form a mixed gas, and enters the fermentation chamber 1 from the output end of the air supply unit 4. Under the action of the guide unit 3, the gas output by the air supply unit 4 will be guided to the mesh belt conveyor layer 21 at the top, providing a specific temperature, humidity and oxygen environment for the tea leaves newly entering the fermentation chamber 1, so that the tea leaves newly entering the fermentation chamber 1 can enter the fermentation state faster, reduce unnecessary time in the fermentation process, and improve efficiency.
[0032] It should be noted here that the pressure of the fresh air delivered by the air supply unit 4 will not be very high, so as to prevent the tea leaves on the mesh belt conveyor layer 21 from being blown away. The function of the guide unit 3 is to make the mixed gas fall so that it can contact the tea leaves on the uppermost mesh belt conveyor layer 21. The ultimate goal of the air supply unit 4 is to provide a specific temperature environment for the fermentation chamber 1, but under the action of the guide unit 3, the tea leaves on the uppermost mesh belt conveyor layer 21 will be contacted first. Due to the fermentation of the tea leaves, the oxygen in the fermentation chamber 1 will be gradually consumed. Through the input of fresh air, the tea leaves newly entering the fermentation chamber 1 will also be contacted with fresh air with sufficient oxygen first.
[0033] In this embodiment, the guide unit 3 includes a bracket 31 connected to the top of the fermentation chamber 1, and a guide plate 32 connected to the bracket 31. The guide plate 32 is provided with an arc bending portion 321, and the arc bending portion 321 is located above the conveying unit 2. The arc bending portion 321 is used to guide the mixed gas output by the air supply unit 4 to the mesh belt conveying layer 21 located at the top.
[0034] Specifically, after the air supply unit 4 outputs the mixed gas, the mixed gas is guided to the uppermost mesh belt conveyor layer 21 by the arc bending portion 321. At the same time, the bracket 31 is used to ensure the stability of the guide plate 32.
[0035] Furthermore, the guide plates 32 are arranged symmetrically, and the air supply units 4 are arranged on both sides of the fermentation chamber 1. The air intake of fresh air is increased to ensure that the tea leaves on the uppermost mesh belt conveyor layer 21 can be evenly exposed to the mixed air.
[0036] In this embodiment, the conveying unit 2 includes a frame 23 , a plurality of mesh belt conveying layers 21 are arranged on the frame 23 from top to bottom, and the conveying directions of two adjacent mesh belt conveying layers 21 are opposite, and the humidification modules 22 are arranged on both sides of the frame 23 .
[0037] In actual use, taking three layers as an example, the top layer is the first layer and so on. Tea leaves are put into the first layer through an external conveyor belt or manual loading, and are transported through the first layer. At the same time, in the first layer, the tea leaves will first come into contact with the mixed gas, so that the tea leaves can enter the fermentation state faster, until the tea leaves fall from the output end of the first layer to the second layer, and the second layer is transported in the opposite direction. The first and second layers cooperate to turn the tea leaves and transport them to the third layer through the second layer. In the second and third layers, the tea leaves have adapted to the environment in the fermentation chamber 1 and continue to ferment under a specific temperature, humidity and oxygen environment. At the same time, the operator can also set a slope conveyor belt at the output end of the third layer to transport the fermented tea leaves to the external drying equipment for drying.
[0038] Furthermore, a baffle 24 is provided on the frame 23, and is disposed below the output end of each mesh belt conveyor layer 21. Because the humidity in the fermentation chamber 1 is very high, tea leaves cannot be prevented from sticking to the mesh belt conveyor layer 21. However, the baffle 24 can scrape the tea leaves stuck to the mesh belt conveyor layer 21 to the next layer.
[0039] Preferably, the air supply unit 4 includes a main pipe 41 and multiple branch pipes 42 connected to the main pipe 41. The multiple branch pipes 42 are arranged on the side of the fermentation chamber 1. The main pipe 41 is connected to an external constant temperature air supply device, and the output end of the exhaust unit 5 is connected to the main pipe 41.
[0040] When in use, the constant temperature air supply device delivers fresh air of a specific temperature to the main pipe 41, enters the branch pipes 42 through the main pipe 41, and enters the fermentation chamber 1 from the branch pipes 42. The use of multiple air ducts can ensure that the temperature in the fermentation chamber 1 is more uniform.
[0041] Furthermore, the exhaust unit 5 includes an exhaust pipe 51 connected to the lower part of the side wall of the fermentation chamber 1 and an exhaust mechanism 52 connected to the exhaust pipe 51. The exhaust pipe 51 is located below the output end of the air supply unit 4, and the output end of the exhaust mechanism 52 is connected to the air supply unit 4.
[0042] The gas with a certain humidity in the fermentation chamber 1 is extracted into the air supply unit 4 through the exhaust mechanism 52 and mixed with the fresh air in the air supply unit 4, so that the mixed gas input into the fermentation chamber 1 through the air supply unit 4 not only has a certain temperature, but also has a certain humidity, and the oxygen content of the fresh air is more sufficient than that of the gas in the fermentation chamber 1.
[0043] In this embodiment, the humidification module 22 includes a tube body 221 and multiple output tubes 222 connected to the tube body 221. The tube body 221 is connected to an external water mist generator. The output tubes 222 are arranged horizontally and connected to the side of the conveyor unit 2. The multiple output tubes 222 are positioned to match the mesh belt conveyor layer 21. The output tubes 222 are equipped with multiple spray heads 223. Specifically, by arranging the output tubes 222 on both sides of the mesh belt conveyor layer 21, humidification from both sides can more evenly distribute moisture, reduce humidity differences, and ensure that the tea leaves have a consistent humidity.
[0044] Preferably, an exhaust pipe 11 is further provided on the side wall of the fermentation chamber 1, and the exhaust pipe 11 is located at the upper part of the side wall of the fermentation chamber 1. A temperature sensor (not shown in the figure) and a humidity sensor (not shown in the figure) are also provided in the fermentation chamber 1.
[0045] Specifically, when the humidity in the fermentation chamber 1 is too high, the exhaust pipe 11 is used to remove a portion of the gas with a certain humidity through the exhaust pipe 11 to reduce the humidity in the fermentation chamber 1. The temperature sensor and humidity sensor are mainly used to monitor the temperature and humidity conditions in the fermentation chamber 1, so that the operator can control the temperature and humidity environment in the fermentation chamber 1.
[0046] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. A black tea dynamic fermentation system, characterized in that: The fermentation chamber comprises a fermentation chamber, a conveying unit located in the fermentation chamber, a guide unit located at the top of the fermentation chamber, an air supply unit located on the side wall of the fermentation chamber, and an exhaust unit located at the lower part of the side wall of the fermentation chamber; the air supply unit is connected to an external constant temperature air supply device; The conveying unit is provided with a plurality of mesh belt conveying layers for conveying tea leaves, and humidification modules are provided on both sides of each mesh belt conveying layer; The exhaust unit is used to extract the gas in the fermentation chamber to the air supply unit and mix it with the hot air delivered by the air supply unit; the output end of the air supply unit is directed toward the guide unit, and under the action of the guide unit, the mixed gas is guided to the mesh belt conveyor layer at the top.
2. The black tea dynamic fermentation system according to claim 1, characterized in that: The guide unit includes a bracket connected to the top of the fermentation chamber and a guide plate connected to the bracket. The guide plate is provided with an arc bending portion, and the arc bending portion is located above the conveying unit. The arc bending portion is used to guide the mixed gas output by the air supply unit to the mesh belt conveying layer located on the top layer.
3. The black tea dynamic fermentation system according to claim 2, characterized in that: The guide plates are arranged symmetrically, and the air supply units are arranged on both sides of the fermentation chamber.
4. The black tea dynamic fermentation system according to claim 1, characterized in that: The conveying unit includes a frame, a plurality of mesh belt conveying layers are arranged on the frame from top to bottom, and the conveying directions of two adjacent mesh belt conveying layers are opposite, and the humidification modules are arranged on both sides of the frame.
5. The black tea dynamic fermentation system according to claim 4, characterized in that: The frame is further provided with a baffle, which is arranged below the output end of each mesh belt conveying layer.
6. The black tea dynamic fermentation system according to claim 1, characterized in that: The air supply unit includes a main pipe and multiple branch pipes connected to the main pipe. The multiple branch pipes are arranged on the side of the fermentation chamber. The main pipe is connected to an external constant temperature air supply device, and the output end of the exhaust unit is connected to the main pipe.
7. The black tea dynamic fermentation system according to claim 1, characterized in that: The exhaust unit includes an exhaust pipe connected to the lower part of the side wall of the fermentation chamber and an exhaust mechanism connected to the exhaust pipe. The exhaust pipe is located below the output end of the air supply unit, and the output end of the exhaust mechanism is connected to the air supply unit.
8. The black tea dynamic fermentation system according to claim 1, characterized in that: The humidification module includes a tube body and multiple output tubes connected to the tube body. The tube body is connected to an external water mist generator. The output tubes are horizontally arranged and connected to the side of the conveying unit. The multiple output tubes match the position of the mesh belt conveying layer. The output tubes are provided with multiple spray heads.
9. The black tea dynamic fermentation system according to claim 1, characterized in that: An air extraction pipe is further provided on the side wall of the fermentation chamber, and the air extraction pipe is located at the upper part of the side wall of the fermentation chamber. A temperature sensor and a humidity sensor are also provided in the fermentation chamber.