White tea production withering equipment

Abstract

The utility model discloses withering equipment for white tea production, and relates to the technical field of tea production equipment. Comprising a withering environment creating box used for containing tea leaves to be withered for withering treatment, one end of the withering environment creating box is provided with an inlet and outlet and an end cover for sealing the inlet and outlet, the lower end of the end cover is connected with the withering environment creating box through a hinge, and the end face of the end cover is arranged to be of an arc surface structure in the vertical direction; the hot air supply channel structure is arranged at the upper end part in the withering environment building box and is used for guiding hot air to the arc surface of the end cover, and a hot air generation furnace is arranged at one end, opposite to the end cover, of the withering environment building box and is used for supplying hot air to the hot air supply channel structure; the tea leaf bearing nets are horizontally arranged in the withering environment building box and used for bearing tea leaves to be withered, the multiple tea leaf bearing nets are distributed in parallel at intervals from top to bottom, each tea leaf bearing net comprises a supporting frame, and a ventilation bearing net is arranged on the inner side of each supporting frame.

Description

Technical Field

[0001] This utility model relates to the technical field of tea production equipment, and in particular to a withering device for white tea production. Background Technology

[0002] Withering is the "soul" of white tea processing; its quality directly determines the quality of the finished tea. Withering generally occurs under specific temperature, humidity, and ventilation conditions, accompanied by leaf moisture evaporation and respiration, resulting in the slow hydrolysis and oxidation of the leaf's internal components. During this process, the tea leaves release a grassy aroma, enhancing the fragrance and producing a sweet and mellow "withered aroma," which plays a crucial role in the quality of white tea. In the production of white tea using mechanical withering equipment, the withering temperature should be controlled between 26-30℃. This withering method is suitable for large-scale white tea production, as it relies on controllable temperature and humidity. Furthermore, to ensure the effectiveness of withering and the quality of the white tea, the air humidity should be maintained between 60-75% RH.

[0003] Currently, existing technologies using mechanical equipment for white tea withering often employ layered loading of tea leaves for high-efficiency withering. For example, patent application number CN202323145149.2, titled "A High-Efficiency Automatic Withering Machine for White Tea," includes a support body, a temperature and humidity control mechanism, and a carrying component. The support body is a hollow cavity with openings at both ends and a semi-circular arc shape on one side. The temperature and humidity control mechanism is located inside the support body near the semi-circular arc side, and the carrying component is located inside the support body, adjacent to the temperature and humidity control mechanism. This utility model belongs to the technical field of tea production equipment, specifically a high-efficiency automatic withering machine for white tea. By controlling the temperature and humidity of the gas, it increases the withering rate of white tea, allowing air to circulate within the support body, thus increasing air circulation. However, in the multi-layer distribution structure described in the aforementioned patent, the single fan supplies air to the multi-layer structure, resulting in uneven air distribution. For example, the air volume is large and the temperature is suitable at the fan supply position or air outlet, while the air volume is small and the temperature is lower at the fan supply position. This leads to different withering conditions and withering quality of tea leaves in different layers, affecting the overall withering effect of white tea.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a withering device for white tea production. Summary of the Invention

[0005] The purpose of this invention is to provide a withering device for white tea production in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a withering device for white tea production, comprising:

[0008] A withering environment creation box is used to contain tea leaves to be withered for withering treatment. One end of the withering environment creation box is provided with an inlet and an end cap that closes the inlet and the outlet. The lower end of the end cap is hinged to the withering environment creation box. The end face of the end cap is set as an arc surface structure along the vertical direction.

[0009] A hot air supply channel structure is provided at the upper end of the withering environment creation box and guides the hot air to the arc surface of the end cover. A hot air generator is provided on the withering environment creation box at one end opposite to the end cover to supply hot air to the hot air supply channel structure.

[0010] The tea-carrying nets consist of multiple horizontally arranged nets within the withering environment chamber to support tea leaves awaiting withering. These nets are spaced apart and parallel to each other from top to bottom. Each tea-carrying net includes a support frame, with a ventilated net disposed inside the support frame, and an arc-shaped guide plate disposed on one end of the support frame facing the end cap.

[0011] A dehumidification mechanism is provided on one end of the withering environment creation box opposite to the end cover to discharge the moisture inside the withering environment creation box located below the hot air supply channel structure.

[0012] In each of the tea-carrying nets, the hot air from the hot air delivery channel structure is guided to the arc surface of the end cap and then directed above the tea-carrying net via the arc-shaped guide plate.

[0013] Furthermore, a support frame is provided at the bottom of the withering environment creation box.

[0014] Furthermore, the hot air supply channel structure includes a channel partition, which is horizontally connected inside the wilting environment creation box and forms a channel for guiding the flow of hot air with the top wall of the wilting environment creation box.

[0015] Furthermore, the channel partition has a downwardly extending arc-shaped plate at one end facing the end cap, with the outer arc surface of the arc-shaped plate facing the direction of the end cap.

[0016] Furthermore, the arc-shaped guide plate extends upward in an arc shape from the support frame, and the distance between the end of the arc-shaped guide plate and the end cap is less than the distance between the arc-shaped plate and the end cap.

[0017] Furthermore, the support frames, distributed from top to bottom, are arranged with increasing lengths so that the arc-shaped guide plates, also distributed from top to bottom, gradually approach the end cap.

[0018] Furthermore, multiple support rollers are provided on both the front and rear surfaces of the withering environment creation box, and the lower surface of each tea leaf support net is supported by multiple support rollers on both sides.

[0019] Furthermore, the dehumidification mechanism includes a dehumidification box, which is disposed on one end of the wilting environment creation box opposite to the end cap and is connected to the space on the wilting environment creation box located below the channel partition. An industrial dehumidifier is disposed outside the dehumidification box, and a dehumidification channel is provided between the industrial dehumidifier and the dehumidification box.

[0020] In the above technical solution, the withering equipment for white tea production provided by this utility model has the following beneficial effects:

[0021] This device uses a hot air supply channel structure to centrally supply air, and at the same time, it combines the arc-shaped guide plate on the multi-layer tea carrying net with the arc-shaped surface structure of the end cap, so that the air of appropriate temperature supplied by the hot air supply channel structure can be delivered to the top of the multi-layer tea carrying net at the same time, so as to achieve high-quality production of white tea withering by uniformly supplying hot air. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments 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. Figure 1 A schematic diagram of the structure of a white tea withering device provided in an embodiment of this utility model;

[0023] Figure 2 A schematic diagram showing the removal of a tea-carrying net from the withering environment creation box in a white tea production withering equipment provided in this embodiment of the utility model;

[0024] Figure 3 A front view of a white tea withering device provided in an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the structure of a tea leaf support net for a white tea withering device provided in this embodiment of the present invention;

[0026] Figure 5 A top view of a tea-carrying net for a white tea withering device provided in an embodiment of this utility model;

[0027] Figure 6 This is a top view of the distribution of support rollers in a withering environment creation box for a white tea production withering device, as provided in an embodiment of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Withering environment creation box; 2. Entrance / exit; 3. End cover; 4. Hot air generator; 5. Support frame; 6. Ventilation support net; 7. Arc-shaped guide plate; 8. Support frame; 9. Channel partition; 10. Arc-shaped plate; 11. Support rollers; 12. Dehumidification box; 13. Industrial dehumidifier; 14. Dehumidification channel. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, a further detailed description of this utility model will be provided below with reference to the accompanying drawings. Please refer to... Figure 1-6 A withering device for white tea production, comprising:

[0031] The withering environment creation box 1 is used to contain the tea leaves to be withered and to create a suitable environment for the withering production of white tea inside the withering environment creation box 1, such as sending in hot air at 26-30℃ and maintaining the internal humidity between 60-75%RH for withering treatment. The withering environment creation box 1 is provided with an inlet 2 and an end cover 3 that closes the inlet 2 at one end. The lower end of the end cover 3 is hinged to the withering environment creation box 1 to make it easy to open and close the end cover 3. The end cover 3 can be fastened by conventional locking or bolt fastening. The end face of the end cover 3 is set as an arc surface structure along the vertical direction, and its arc surface is used to guide the direction of hot air delivery.

[0032] The hot air supply channel structure is set at the upper end of the withering environment creation box 1 and guides the hot air to the arc surface of the end cover 3, so that the hot air flows along the arc surface. A hot air generator 4 is set on the end of the withering environment creation box 1 opposite to the end cover 3 to send hot air of the required temperature into the hot air supply channel structure.

[0033] The tea-carrying nets are multiple horizontally arranged within the withering environment chamber 1 to hold tea leaves to be withered. These nets are spaced apart and parallel to each other from top to bottom. Each tea-carrying net includes a support frame 5, with a ventilated carrying net 6 installed inside the support frame 5. The support frame 5 supports and flattens the ventilated carrying net 6 to hold the tea leaves. The ventilated carrying net 6 provides ventilation from both above and below for better withering. An arc-shaped guide plate 7 is installed on the end of the support frame 5 facing the end cap 3 to guide the hot air flowing along the arc surface of the end cap 3 to the area above the respective tea-carrying net. Since the multiple tea-carrying nets are evenly distributed from top to bottom, and the arc-shaped guide plates 7 all face the arc surface of the end cap 3, the arc-shaped guide plates 7 of each tea-carrying net can guide the hot air blowing along the arc surface of the end cap 3 to the area above their respective tea-carrying nets.

[0034] The dehumidification mechanism is installed on the end of the withering environment creation box 1 opposite to the end cover 3 to discharge the moisture inside the withering environment creation box 1 located below the hot air supply channel structure. In the case of excessive humidity, the moisture is discharged through the dehumidification mechanism to maintain a suitable humidity environment for withering inside the withering environment creation box 1.

[0035] Each tea-carrying net is guided by an arc-shaped guide plate 7 to direct the hot air from the arc surface of the end cap 3 to the top of the tea-carrying net, so as to achieve uniform hot air delivery and ensure that the tea leaves on each layer are evenly placed in a suitable temperature and humidity environment for withering, thereby ensuring the stable withering quality of white tea.

[0036] In addition, the temperature and humidity control inside the withering environment creation box 1, including the corresponding sensors for temperature and humidity detection and the use and regulation of the hot air generator 4 and the dehumidification mechanism, are all common knowledge familiar to those skilled in the art and will not be elaborated further. This device only solves the technical problem of uneven air supply.

[0037] Furthermore, a support frame 8 is provided at the bottom of the wilting environment creation box 1 to support the wilting environment creation box 1 for easy operation and use.

[0038] Furthermore, the hot air supply channel structure includes a channel partition 9, which is horizontally connected inside the withering environment creation box 1 and forms a channel with the top wall of the withering environment creation box 1 to guide the flow of hot air. This allows the hot air at a suitable temperature blown out by the hot air generator 4 to be guided to the arc-shaped position of the end cover 3 through the channel formed by the channel partition 9 and the top wall of the withering environment creation box 1. The supply air temperature of the hot air generator 4 should also take into account the temperature loss of the supply air within the hot air supply channel structure.

[0039] Furthermore, an arc-shaped plate 10 extending downwards is provided on the end of the channel partition 9 facing the end cover 3. The outer arc surface of the arc-shaped plate 10 faces the direction of the end cover 3. The arc-shaped plate 10 is provided to match the arc surface structure of the end cover 3, so that the hot air supply channel structure can better flow along the arc surface structure of the end cover 3, and also better allow the hot air to flow into the tea leaf support mesh closest to the channel partition 9.

[0040] Furthermore, the arc-shaped guide plate 7 extends upward in an arc shape from the support frame 5, and the distance between the end of the arc-shaped guide plate 7 and the end cap 3 is less than the distance between the arc-shaped plate 10 and the end cap 3, so that the arc-shaped guide plate 7 extends beyond the position of the arc-shaped plate 10 so that hot air can be introduced above the tea carrying net.

[0041] Furthermore, the support frames 5, distributed from top to bottom, are arranged with increasing lengths so that the arc-shaped guide plates 7, distributed from top to bottom, gradually approach the end cap 3. This is to prevent the lower arc-shaped guide plate 7 from being blocked by the upper arc-shaped guide plate 7 and thus failing to properly introduce hot air into the tea leaf carrier net.

[0042] Furthermore, multiple support rollers 11 are installed on both the front and rear surfaces of the withering environment creation box 1. Each tea-carrying mesh is supported by multiple support rollers 11 on both sides of its lower surface, allowing each tea-carrying mesh to be placed on the support rollers 11 on the same plane. This device facilitates operation by utilizing the relative rolling movement between the support rollers 11 and the tea-carrying mesh during the process of feeding or removing the tea-carrying mesh into or from the withering environment creation box 1. The end cap 3 of this device can be opened and closed to facilitate the entry and exit of the tea-carrying mesh from the withering environment creation box 1. After the end cap 3 is closed, it can be secured using conventional locking or bolt methods.

[0043] Furthermore, the dehumidification mechanism includes a dehumidification box 12, which is installed on the withering environment creation box 1 opposite to one end of the end cap 3 and connected to the space below the channel partition 9 on the withering environment creation box 1, so that the air above the multi-layer tea carrying net can enter the dehumidification box 12. An industrial dehumidifier 13 is installed outside the dehumidification box 12, and a dehumidification channel 14 is set between the industrial dehumidifier 13 and the dehumidification box 12, so that the air entering the dehumidification box 12 is extracted by the industrial dehumidifier 13 to regulate the air humidity inside the withering environment creation box 1.

[0044] In summary, this device uses a hot air supply channel structure to centrally supply air, and combines the arc-shaped guide plate on the multi-layer tea carrying net with the arc-shaped surface structure of the end cap, so that the air at the appropriate temperature supplied by the hot air supply channel structure can be delivered to the top of the multi-layer tea carrying net at the same time, so as to achieve high-quality production of white tea withering by uniformly supplying hot air.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A withering device for white tea production, characterized in that, include: Withering environment creation box (1) is used to contain tea leaves to be withered for withering treatment. The withering environment creation box (1) is provided with an inlet (2) and an end cap (3) to close the inlet (2) at one end. The lower end of the end cap (3) is hinged to the withering environment creation box (1). The end face of the end cap (3) is set as an arc surface structure in the vertical direction. A hot air supply channel structure is provided at the upper end of the withering environment creation box (1) and guides the hot air to the arc surface of the end cover (3). A hot air generator (4) is provided on one end of the withering environment creation box (1) opposite to the end cover (3) to supply hot air to the hot air supply channel structure. The tea carrying net consists of multiple horizontally arranged tea leaves to be withered within the withering environment creation box (1). These multiple tea carrying nets are spaced apart from each other and arranged parallel to each other from top to bottom. Each tea carrying net includes a support frame (5), a ventilated carrying net (6) is arranged inside the support frame (5), and an arc-shaped guide plate (7) is arranged on one end of the support frame (5) facing the end cap (3). A dehumidification mechanism is provided on one end of the withering environment creation box (1) opposite to the end cap (3) to discharge the moisture inside the withering environment creation box (1) located below the hot air supply channel structure. Each of the tea-carrying nets guides the hot air from the hot air delivery channel structure to the arc surface of the end cap (3) via the arc-shaped guide plate (7) and directs the hot air above the tea-carrying net.

2. The withering equipment for white tea production according to claim 1, characterized in that, The bottom of the withering environment creation box (1) is equipped with a support frame (8).

3. The withering equipment for white tea production according to claim 1, characterized in that, The hot air supply channel structure includes a channel partition (9), which is horizontally connected inside the withering environment creation box (1) and forms a channel for guiding the flow of hot air with the top wall of the withering environment creation box (1).

4. The white tea withering equipment according to claim 3, characterized in that, An arc-shaped plate (10) extending downwards is provided on one end of the channel partition (9) facing the end cap (3), and the outer arc surface of the arc plate (10) faces the direction of the end cap (3).

5. The withering equipment for white tea production according to claim 4, characterized in that, The arc-shaped guide plate (7) extends upward in an arc shape from the support frame (5), and the distance between the end of the arc-shaped guide plate (7) and the end cap (3) is less than the distance between the arc-shaped plate (10) and the end cap (3).

6. The withering equipment for white tea production according to claim 1, characterized in that, The support frames (5) are arranged from top to bottom with increasing lengths so that the arc-shaped guide plates (7) are gradually positioned closer to the end caps (3).

7. The withering equipment for white tea production according to claim 1, characterized in that, Multiple support rollers (11) are provided on both the front and rear surfaces of the withering environment creation box (1), and the lower surface of each tea carrying net is supported by multiple support rollers (11) on both sides.

8. The withering equipment for white tea production according to claim 3, characterized in that, The dehumidification mechanism includes a dehumidification box (12), which is located on one end of the withering environment creation box (1) opposite to the end cap (3) and connected to the space below the channel partition (9) on the withering environment creation box (1). An industrial dehumidifier (13) is installed outside the dehumidification box (12), and a dehumidification channel (14) is provided between the industrial dehumidifier (13) and the dehumidification box (12).

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