A white tea withering room and withering method thereof

Abstract

The present invention discloses a white tea withering room, including a withering room body and a main control device. A withering space is formed in the withering room body, and a sieve for placing green tea is built in the withering space; a plurality of placement grooves arranged parallel to each other are arranged on the inner wall of the withering room body along its length direction, and the placement grooves on the side walls on both sides of the withering space are arranged one by one, and the two sides of the sieve are placed in the placement grooves; the present invention adopts a method combining a green tea withering prediction model with a database, which can save labor and realize precise operation at a fixed point and time. At the same time, the device and method of the present invention can make the green tea on each sieve wither according to a preset process, which can significantly improve work efficiency; it can adapt to large-scale factory-based continuous production of tea, and at the same time can greatly improve the stability of the quality of finished tea.

Description

Technical Field

[0001] The invention relates to the technical field of tea processing, in particular to a white tea withering room and a withering method thereof. Background Art

[0002] Withering is a step in the tea-making process, in which the tea leaves lose moisture before processing. During the withering process, the moisture content of fresh leaves decreases, the leaves become soft from brittle and hard, and the color changes from bright green to dark green, making the leaves easier to roll into strips. Due to the loss of moisture and respiration of the leaves, the permeability of cell membranes increases, and the activity of enzymes in the leaves increases, which promotes the decomposition and transformation of fresh leaf components such as starch, protein, and insoluble protopectin, generating glucose, amino acids, soluble pectin and other effective substances that are beneficial to the quality of the finished tea. Polyphenols also oxidize to varying degrees, causing the grassy smell of the tea leaves to dissipate, producing the mellow but not astringent tea aroma and tea flavor unique to different types of tea, such as subtle fragrance and floral and fruity fragrance.

[0003] The existing withering process is to either spread the tea leaves thinner, which can speed up the withering process, but the tea leaves lose moisture too quickly, inhibiting the transformation and accumulation of substances contained in the tea leaves, resulting in poor quality of the finished tea leaves; or spread the tea leaves thicker, which slows down the rate of moisture loss but greatly slows down the withering efficiency.

[0004] Therefore, the purpose of this application is to study a white tea withering room and processing technology that can be mass-produced and easily controlled to lay the foundation for processing high-quality tea. Summary of the invention

[0005] Based on the existing technology, the purpose of the present invention is to provide a white tea withering room which is easy to install and has a reasonable structure.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A white tea withering room, comprising a withering room body and a main control device, wherein a withering space is formed in the withering room body, and a sieve for placing green tea is built into the withering space;

[0008] The inner wall of the withering room body is provided with a plurality of placement grooves arranged parallel to each other along its length direction, and the placement grooves on the side walls on both sides of the withering space are arranged one by one; the two sides of the sieve are placed in the placement grooves;

[0009] The withering room body is provided with a plurality of first cavities and second cavities in the side walls on both sides along the length direction thereof, and the first cavities and the second cavities are arranged alternately with each other; a plurality of first through holes and second through holes are arranged equidistantly on the inner wall of the withering room body, the withering space is connected with the first cavity through the first through holes, and the withering space is connected with the second cavity through the second through holes; an exhaust pipe is arranged at the top of the withering room body, and the second cavities are connected with the exhaust pipe through the through pipe arranged on the side of the withering room body;

[0010] A plurality of fans and connecting pipes are provided on the side of the withering room body, the fans are connected to the first cavity through the connecting pipes, and the fans and the first cavity are arranged one by one; a dehumidification device and a heating device are built into the connecting pipe, and the heating device is located on the side of the dehumidification device away from the fan;

[0011] A weighing sensor for measuring the weight of the sieve is arranged between each sieve and the placement slot; a plurality of wireless temperature sensors and wireless humidity sensors are arranged on the sieves in the same row; the main control device is connected to the dehumidification device, the heating device, the fan, and the weighing sensor, and the main control device is communicatively connected to the wireless temperature sensor and the wireless humidity sensor.

[0012] The withering space is equipped with several baffles, which are detachably arranged on the inner wall of the withering room body; the baffles are located between the first through hole and the second through hole, and are used to block the wind blown out of the first through hole from directly entering the second through hole; wherein, the width of the baffles is 1 / 4-1 / 3 of the width of the withering space.

[0013] Furthermore, the first cavity in the side wall of one side of the withering room body and the second cavity in the side wall of the other side are arranged in one-to-one correspondence.

[0014] Furthermore, both ends of the sieve are respectively inserted into placement grooves on the side walls of the withering space and located on the same horizontal plane.

[0015] Furthermore, the first through hole or the second through hole is located between two adjacent placement grooves, and a plurality of first through holes or the second through holes are equidistantly arranged between two adjacent placement grooves; the first through hole or the second through hole is rectangular, circular or waist-shaped.

[0016] The present invention also discloses a withering method based on a white tea withering room, comprising the following steps:

[0017] Step S1, testing the water content of tea leaves to obtain the initial water content of the tea leaves;

[0018] Step S2: setting tea varieties and process requirements in the main control device of the withering room;

[0019] Step S3, collecting the temperature and relative humidity of the environment around the withering room, and collecting the weight loss rate of tea leaves, wind speed, temperature and humidity in the withering room in real time;

[0020] Step S4, calculating the air volume of each fan and the temperature and humidity required for each air outlet based on the collected data by combining the tea leaf withering prediction model with the database;

[0021] Step S5, the main control device controls the speed of the fan, the power of the dehumidification device and the heating temperature of the heating device according to the air supply volume of each fan and the temperature and humidity required by each air supply port;

[0022] Step S6, determine whether the weight loss rate of the green tea leaves meets the process requirements. If so, send it to the next processing step; if not, return to step S3.

[0023] Furthermore, the step S1 is specifically as follows:

[0024] S11. Fresh tea sieving: put fresh tea leaves into the sieve and spread the fresh tea leaves evenly in the sieve to a thickness of 3-5 cm;

[0025] S12, testing the moisture content of green tea leaves: testing the moisture content of the green tea leaves on each sieve, and classifying the moisture content of the green tea leaves on each sieve;

[0026] S13. Fresh tea leaves are sent to the withering room and placed in layers: sieves filled with fresh green tea leaves are placed layer by layer on the racks in the withering room; green tea leaves within the same moisture content range are placed in front of the same air supply outlet.

[0027] Furthermore, the water content of the green tea is classified into a range of 2%.

[0028] Furthermore, the step S3 is specifically as follows:

[0029] The weight loss rate of tea leaves in each sieve is collected in real time, and the wind speed, temperature and humidity at multiple detection positions in the withering room are collected in real time; wherein, the detection positions are evenly distributed in the withering room, and detection positions are provided at the top, middle and bottom of the same row of sieves corresponding to each air supply outlet.

[0030] Furthermore, the green tea withering prediction model is a model for the relationship between the air volume in the withering space, the temperature and humidity in the withering space, and the water loss of the green tea.

[0031] The database stores data of each withering process, including ambient temperature, humidity, air supply volume in the withering space, temperature and humidity in the withering space, weight loss rate curve of tea leaves in each sieve, pictures before withering, pictures after withering, soup color pictures, raw tea pictures, and sensory evaluation records of judges.

[0032] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0033] The several air inlets of the present scheme are equidistantly arranged along the length direction of the withering room, and the air inlets are alternately arranged on the side surfaces of the withering room body; the ventilation blown in by the fan is buffered and diverted by the first cavity, further solving the problem of excessive wind speed in the local position near the air inlet, and the ventilation blown in by the fan is further diverted by using a plurality of first through holes evenly distributed between two adjacent placement grooves; at the same time, the ventilation blown out of the first through hole is guided by the baffle plate to enter the second through hole directly opposite to the first through hole and adjacent to the left and right sides; the ventilation wind speed at each position in the withering room is balanced, which promotes the transformation and accumulation of substances contained in the tea leaves, and can also avoid the uneven withering caused by excessive water loss, further eliminate the green smell, and improve the quality of the finished tea leaves.

[0034] The present invention adopts a method combining a tea leaf withering prediction model with a database, which can save labor and realize precise operation at a fixed point and time. At the same time, the device and method of the present invention can make the tea leaves on each sieve wither according to a preset process, which can significantly improve work efficiency; it can adapt to large-scale factory-based continuous production of tea leaves, and can greatly improve the stability of the quality of finished tea.

[0035] The present invention monitors the moisture content of tea leaves indirectly by real-time weight monitoring, thereby ensuring that the moisture content of finished tea leaves will not decrease too much or too little, and the implementation method is simple and easy to control; placing tea leaves with similar moisture contents at the air inlet of the same fan is convenient for controlling the ventilation air volume in the same area, thereby avoiding uneven withering caused by different moisture contents. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0037] Figure 1 It is a schematic diagram of the overall structure of the white tea withering room of the present invention.

[0038] Figure 2 The internal structure of the white tea withering room of the present invention is shown in FIG. Figure 1 .

[0039] Figure 3 The internal structure of the white tea withering room of the present invention is shown in FIG. Figure 2 .

[0040] Figure 4It is a schematic diagram of the enlarged structure of point A of the present invention.

[0041] Figure 5 The present invention is a flow chart of the white tea withering room and its withering method. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figures 1 to 4 As shown in FIG. 1 , the present solution provides a white tea withering room, comprising a withering room body 1, a withering space 11 is formed in the withering room body 1, and a sieve 6 for placing green tea leaves is built in the withering space 11;

[0044] Reference Figure 1-3 As shown, a plurality of first cavities 15 and a second cavities 13 are provided in the side walls on both sides of the withering room body 1 along its length direction, and the first cavities 15 and the second cavities 13 are alternately arranged, and the first cavities 15 in the side wall on one side of the withering room body 1 and the second cavities 13 in the side wall on the other side are arranged one by one; a plurality of first through holes 14 and second through holes 12 are equidistantly arranged on the inner wall of the withering room body 1, and the withering space 11 is communicated with the first cavity 15 through the first through holes 14, and the withering space 11 is communicated with the second cavity 13 through the second through holes 12; an exhaust duct 41 is provided at the top of the withering room body 1, and the second cavity 13 is communicated with the exhaust duct 41 through the through pipe 4 arranged on the side of the withering room body 1; a plurality of fans 2 and connecting pipes 3 are provided on the side of the withering room body 1, and the fan 2 is communicated with the first cavity 15 through the connecting pipe 3, and the fan 2 and the first cavity 15 are arranged one by one;

[0045] The first through hole 14 or the second through hole 12 is located between two adjacent placement grooves 17, and multiple first through holes 14 or second through holes 12 are equidistantly arranged between two adjacent placement grooves 17; the first through hole 14 or the second through hole 12 is rectangular, circular or waist-shaped.

[0046] The several air inlets of the withering chamber body 1 are equidistantly arranged along its length direction, and the air inlets are alternately arranged on the side surfaces of the withering chamber body 1; this avoids the air inlets of the withering chamber body 1 being too concentrated, which causes excessive wind speed in the local position of the withering chamber body 1 close to the air inlet, and then makes the withering degree of the green tea leaves close to the air inlet much higher than that of the green tea leaves at other positions, affecting the withering quality; the air inlets are alternately arranged on the side surfaces of the withering chamber body 1, so that the air inlet arrangement is more reasonable, and the problem of uneven ventilation wind speed at different positions in the withering chamber body 1 is effectively solved.

[0047] At the same time, the fan 2 blows external air into the first cavity 15 through the connecting pipe 3, and the withering space 11 is connected to the first cavity 15 through the first through hole 14; the ventilation blown in by the fan 2 is buffered and diverted by the first cavity 15, which further solves the problem of excessive wind speed in the local position near the air inlet, and uses a plurality of first through holes 14 evenly distributed between two adjacent placement grooves 17 to further divert the ventilation blown in by the fan 2, so that the ventilation blown into the withering space 11 is more uniform, so as to improve the withering efficiency of white tea.

[0048] Reference Figure 4 As shown, the connecting pipe 3 has a built-in dehumidification device 31 and a heating device 32, and the heating device 32 is located on the side of the dehumidification device 31 away from the fan 2; wherein, a wind guide plate 16 is horizontally placed at the connection between the connecting pipe 3 and the first cavity 15, and the wind guide plate 16 is used to guide the wind blown out of the dehumidification device 31 to the upper half of the first cavity 15; and a wind guide surface 18 is provided at the bottom end of the first cavity 15.

[0049] By utilizing the wind guiding effect of the wind guide plate 16 and the wind guide surface 18, the wind blown out by the fan 2 can be more evenly filled in the first cavity 15; this avoids the wind blown out by the fan 2 being concentrated in the first cavity 15, and avoids the difference in ventilation wind speed blown out from the first through holes 14 arranged above and below the first cavity 15, so that the ventilation blown into the withering space 11 is more uniform, thereby improving the withering efficiency of white tea.

[0050] In addition, refer to Figure 2-3 As shown, the withering space 11 is built with a plurality of baffles 5, and the baffles 5 are detachably arranged on the inner wall of the withering room body 1; the baffles 5 are located between the first through hole 14 and the second through hole 12, and the baffles 5 are used to block the wind blown out of the first through hole 14 from directly entering the second through hole 12; wherein, the width of the baffles 5 is 1 / 4-1 / 3 of the width of the withering space 11.

[0051] The baffle plate 5 is arranged in the withering space 11, and the baffle plate 5 is located between the first through hole 14 and the second through hole 12, so that the air blown out of the first through hole 14 can be blocked by the baffle plate 5 and blown to the middle position in the withering space 11, thereby preventing the air blown out of the first through hole 14 from directly entering the second through hole 12;

[0052] At the same time, a plurality of first cavities 15 and second cavities 13 are provided in the side walls of the withering room body 1 along the length direction thereof, and the first cavities 15 and the second cavities 13 are arranged alternately with each other, and the first cavities 15 in one side wall of the withering room body 1 and the second cavities 13 in the other side wall thereof are arranged one by one, and the withering space 11 is connected to the second cavity 13 through the second through hole 12;

[0053] Among them, the adjacent first cavity 15 is not connected to the second cavity 13, and the ventilation blown out of the first through hole 14 is guided by the baffle 5 into the second through hole 12 directly opposite to the first through hole 14 and adjacent to the left and right, so that the ventilation blown into the withering space 11 is more uniform, so as to improve the withering efficiency of white tea.

[0054] Reference Figure 1-3 As shown, the inner wall of the withering room body 1 is provided with a plurality of placement grooves 17 arranged parallel to each other along its length direction, and the placement grooves 17 on the side walls on both sides of the withering space 11 are arranged one by one, and the placement grooves 17 are the same length as the withering room body 1; the two ends of the sieve 6 are respectively inserted into the placement grooves 17 on the side walls on both sides of the withering space 11 and located on the same horizontal plane, and the length of the sieve 6 is the same as the length of the first cavity 15 or the second cavity 13.

[0055] The ventilation duct is formed by two sieves 6 adjacent to each other, and the air enters the duct from the first through hole 14, passes between the two sieves 6 adjacent to each other, and then is sent out from the second through hole 12. In this way, the air can be sent to the upper and lower sides of the sieve 6, passing through the middle of the stacked tea leaves, so that each tea leaf can be fully ventilated. At the same time, the ventilation of the tea leaves can also effectively blow the tea leaves, so that the withering effect is better; accelerate the evaporation of water in the withering process, prevent the accumulation of undesirable gases such as carbon dioxide, and at the same time supply the oxygen required for biochemical changes in the tea leaves, thereby accelerating the withering efficiency.

[0056] Reference Figure 1-3 As shown, a weighing sensor 61 for measuring the weight of the sieve 6 is provided between each sieve 6 and the placement slot 17; the weighing sensor 61 is used to detect the weight of the sieve 6 in real time, so as to calculate the weight loss rate of the green tea, thereby converting the real-time moisture content of the green tea. Among them, each sieve 6 uses a sieve 6 of standard weight, so that their own weight is similar, avoiding the weight difference of the sieve 6 affecting the calculation of the weight loss rate of the green tea.

[0057] According to the deadweight W of each sieve 61 , each sieve 6 and its initial total weight W of the green tea leaves it carries 2 And the initial water content Q of the green tea in each sieve 6 1 , thus calculating the water content W of the green tea in each sieve 6 3 After the tea leaves are withered, the weight W of each sieve 6 is detected in real time by the weighing sensor 61 4 , thus according to

[0058]

[0059] Get the real-time water content Q of the inner green tea in each sieve 6 at this time 2 .

[0060] The present invention indirectly monitors the water content of tea leaves by real-time weight monitoring, thereby ensuring that the water content of finished tea leaves will not be reduced too much or too little, and the implementation method is simple and easy to control.

[0061] In addition, a plurality of wireless temperature sensors 71 and wireless humidity sensors 72 are arranged on the sieves 6 in the same row, and the wireless temperature sensors 71 and the wireless humidity sensors 72 are equidistantly distributed on the sieves 6 in the same row, and the wireless temperature sensors 71 and the wireless humidity sensors 72 are fixed at the bottom of the sieve 6 or the top of the withering space 11; so that the temperature and humidity at various positions of the withering space 11 can be detected in real time, so that the main control device can better control the dehumidification device 31 and the heating device 32 to wither the green tea.

[0062] At the same time, the wind speed sensor 73 of the withering space 11 is used to detect the ventilation wind speed blown out of the first through hole 14, wherein the wind speed sensor 73 is located at the top of the withering space 11, and the wind speed sensor 73 is arranged in a one-to-one correspondence with the fan 2; using the wind speed sensor 73 to detect the wind speed at different positions can prevent the tea from losing water too quickly, promote the transformation and accumulation of substances contained in the tea, and avoid uneven withering caused by excessive water loss, further eliminate the green smell, and improve the quality of the finished tea.

[0063] The main control device is connected to the dehumidification device 31, the heating device 32, the fan 2, and the weighing sensor 61. The main control device is communicatively connected to the wireless temperature sensor 71 and the wireless humidity sensor 72. The wireless temperature sensor 71 and the wireless humidity sensor 72 use radio frequency identification technology and can perform real-time detection of the temperature and humidity of the withering space 11.

[0064] The tea leaf withering prediction model and database are embedded and stored in the main control device.

[0065] Reference Figure 5 As shown, the present invention also discloses a withering method based on a white tea withering room, comprising the following steps:

[0066] Step S1, testing the water content of tea leaves to obtain the initial water content of the tea leaves;

[0067] Step S2: setting tea varieties and process requirements in the main control device of the withering room;

[0068] Step S3, collecting the temperature and relative humidity of the environment around the withering room, and collecting the weight loss rate of tea leaves, wind speed, temperature and humidity in the withering room in real time;

[0069] Step S4, calculating the air supply volume of each fan 2 and the temperature and humidity required for each air outlet according to the collected data by combining the tea leaf withering prediction model with the database;

[0070] Step S5, according to the air supply volume of each fan 2 and the temperature and humidity required by each air supply port, the main control device controls the speed of the fan 2, the power of the dehumidification device 31 and the heating temperature of the heating device 32;

[0071] Step S6, determine whether the weight loss rate of the green tea leaves meets the process requirements. If so, send it to the next processing step; if not, return to step S3.

[0072] Wherein, step S1 is specifically as follows:

[0073] S11, fresh tea sieving: put fresh green tea into sieve 6, and spread the fresh tea leaves evenly in the sieve 6, with a thickness of 3-5 cm;

[0074] S12, testing the water content of green tea leaves: testing the water content of green tea leaves on each sieve 6, and classifying the water content of green tea leaves on each sieve 6;

[0075] S13, fresh tea is sent to the withering room and placed in layers: the sieves 6 filled with fresh green tea are placed layer by layer on the bracket in the withering room; wherein, the green tea within the same moisture content range is placed in front of the same air supply outlet.

[0076] It is worth mentioning that when spreading the tea leaves in the sieve 6, it is necessary to spread the tea leaves thinly and evenly; the size of each sieve 6 can be the same, and the amount of tea leaves spread can be the same; in order to facilitate the calculation of the water content.

[0077] In addition, the water content of the green tea is classified into a range of 2%.

[0078] Placing tea leaves with similar moisture content at the same fan inlet avoids tea leaves with too much difference in moisture content being at the same inlet, which would cause differences in withering degree and uneven quality of the finished tea leaves.

[0079] Wherein, the step S3 is specifically as follows:

[0080] The weight loss rate of tea leaves in each sieve 6 is collected in real time, and the wind speed, temperature and humidity at multiple detection positions in the withering room are collected in real time; wherein, the detection positions are evenly distributed in the withering room, and detection positions are provided at the top, middle and bottom of the same row of sieves 6 corresponding to each air supply outlet.

[0081] Among them, the tea leaf withering prediction model is a model for the relationship between the air volume in the withering space, the temperature and humidity in the withering space, and the water loss of tea leaves. Through the massive amount of tea leaf withering experimental data in the early stage, through the joint simulation analysis of multiple software, the influencing factors of the coupling of temperature and humidity, tea leaf quality and air volume are traced, and the correlation model between tea leaf water loss and control variables is established;

[0082] Collect data from various sensors in the withering room, use blind element separation and power spectrum analysis (PSD) time difference positioning technology, and establish a corresponding digital twin technology model; this is conducive to the prediction of the water loss of green tea, the withering air volume, temperature and humidity in the short term, and realize the digital control of three-dimensional withering;

[0083] The database stores data of each withering process, including ambient temperature, humidity, air supply volume in the withering space, temperature and humidity in the withering space, weight loss rate curve of tea leaves in each sieve, pictures before withering, pictures after withering, soup color pictures, raw tea pictures, and sensory evaluation records of judges.

[0084] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A white tea withering room, characterized in that: The withering room body (1) comprises a withering room body (1) and a main control device, wherein a withering space (11) is formed in the withering room body (1), and a sieve (6) for placing green tea leaves is built in the withering space (11); The inner wall of the withering room body (1) is provided with a plurality of placement grooves (17) arranged in parallel with each other along its length direction, and the placement grooves (17) on the side walls of the withering space (11) are arranged one by one in correspondence; the two sides of the sieve (6) are placed in the placement grooves (17); The withering room body (1) is provided with a plurality of first cavities (15) and second cavities (13) in the side walls on both sides along the length direction thereof, and the first cavities (15) and the second cavities (13) are arranged alternately with each other; a plurality of first through holes (14) and second through holes (12) are equidistantly arranged on the inner wall of the withering room body (1), the withering space (11) is communicated with the first cavity (15) through the first through holes (14), and the withering space (11) is communicated with the second cavity (13) through the second through holes (12); an exhaust duct (41) is provided at the top end of the withering room body (1), and the second cavities (13) are communicated with the exhaust duct (41) through the through pipe (4) arranged on the side of the withering room body (1); A plurality of fans (2) and connecting pipes (3) are provided on the side of the withering room body (1); the fans (2) are connected to the first cavity (15) through the connecting pipes (3), and the fans (2) and the first cavity (15) are arranged in a one-to-one correspondence; the connecting pipes (3) are equipped with a dehumidifying device (31) and a heating device (32), and the heating device (32) is located on a side of the dehumidifying device (31) away from the fans (2); A weighing sensor (61) for measuring the weight of the sieve (6) is provided between each sieve (6) and the placement slot (17); a plurality of wireless temperature sensors (71) and wireless humidity sensors (72) are provided on the sieves (6) in the same row; the main control device is connected to the dehumidification device (31), the heating device (32), the fan (2), and the weighing sensor (61); and the main control device is in communication connection with the wireless temperature sensor (71) and the wireless humidity sensor (72); The first cavity (15) in one side wall of the withering room body (1) and the second cavity (13) in the other side wall are arranged in one-to-one correspondence; The withering space (11) is provided with a plurality of baffles (5), and the baffles (5) are detachably arranged on the inner wall of the withering room body (1); the baffles (5) are located between the first through hole (14) and the second through hole (12), and the baffles (5) are used to prevent the wind blown out of the first through hole (14) from directly entering the second through hole (12); wherein the width of the baffles (5) is 1 / 4-1 / 3 of the width of the withering space (11).

2. A white tea withering room according to claim 1, characterized in that: The two ends of the sieve (6) are respectively inserted into placement grooves (17) on the side walls of the withering space (11) and located on the same horizontal plane.

3. A white tea withering room according to claim 1, characterized in that: The first through hole (14) or the second through hole (12) is located between two adjacent placement grooves (17), and a plurality of first through holes (14) or second through holes (12) are equidistantly arranged between two adjacent placement grooves (17); the first through hole (14) or the second through hole (12) is rectangular, circular or waist-shaped.

4. A withering method based on the white tea withering room according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step S1, testing the water content of tea leaves to obtain the initial water content of the tea leaves; Step S2: setting tea varieties and process requirements in the main control device of the withering room; Step S3, collecting the temperature and relative humidity of the environment around the withering room, and collecting the weight loss rate of tea leaves, wind speed, temperature and humidity in the withering room in real time; Step S4, calculating the air volume of each fan (2) and the temperature and humidity required for each air outlet based on the collected data by combining the tea leaf withering prediction model with the database; Step S5, according to the air supply volume of each fan (2) and the temperature and humidity required by each air supply port, the main control device controls the rotation speed of the fan (2), the power of the dehumidification device (31) and the heating temperature of the heating device (32); Step S6, determine whether the weight loss rate of the green tea leaves meets the process requirements. If so, send it to the next processing step; if not, return to step S3.

5. A withering method based on a white tea withering room according to claim 4, characterized in that: The step S1 is specifically as follows: S11, fresh tea sieving: fresh tea leaves are put into the sieve (6), and the fresh tea leaves are evenly spread in the sieve (6), with the thickness of the spread leaves being 3-5 cm; S12, testing the water content of the green tea leaves: testing the water content of the green tea leaves on each sieve (6), and classifying the water content of the green tea leaves on each sieve (6); S13. Fresh tea leaves are sent to the withering room and placed in layers: sieves (6) filled with fresh green tea leaves are placed layer by layer on the support in the withering room; wherein, green tea leaves within the same moisture content range are placed in front of the same air supply port.

6. A withering method based on a white tea withering room according to claim 5, characterized in that: The water content of the green tea is classified into a range of 2%.

7. A withering method based on a white tea withering room according to claim 4, characterized in that: The step S3 is specifically as follows: The weight loss rate of tea leaves in each sieve (6) is collected in real time, and the wind speed and temperature and humidity at multiple detection positions in the withering room are collected in real time; wherein the detection positions are evenly distributed in the withering room, and detection positions are provided at the top, middle and bottom of the same row of sieves (6) corresponding to each air supply port.

8. A withering method based on a white tea withering room according to claim 4, characterized in that: The tea leaf withering prediction model is a model for the relationship between the air volume in the withering space (11), the temperature and humidity in the withering space (11) and the water loss of the tea leaves; The database stores data of each withering process, the data including ambient temperature, humidity, air volume in the withering space (11), temperature and humidity in the withering space (11), weight loss rate curve of tea leaves in each sieve (6), pictures before withering, pictures after withering, tea soup color pictures, raw tea pictures, and sensory evaluation records of judges.

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