An apparatus and method for producing tea leaves

Abstract

The present application relates to a kind of tea production methods, fixation treatment and drying treatment are carried out in the same cylinder fixation machine, A moisture removal unit and B moisture removal unit are arranged on the cylinder fixation machine, the moisture removal capacity of A moisture removal unit is greater than the moisture removal capacity of B moisture removal unit;Fixation treatment process, simultaneously start A moisture removal unit, B moisture removal unit and carry out moisture removal;Drying treatment process, first simultaneously start A moisture removal unit, B moisture removal unit and carry out moisture removal;Then close B moisture removal unit, only use A moisture removal unit and carry out moisture removal;Subsequently, close A moisture removal unit, only start B moisture removal unit and carry out moisture removal;Finally, simultaneously close A moisture removal unit, B moisture removal unit.The moisture removal unit and B moisture removal unit are simultaneously set, so that moisture removal is more reliable, accurate, improve the effect of tea fixation treatment and drying treatment, improve tea quality.

Description

Technical Field

[0001] This invention relates to the field of tea production, and specifically to a tea production equipment and method. Background Technology

[0002] In tea-producing rural areas, tea is an important crop, with almost every household cultivating it. This has also led to the emergence of numerous individual businesses and small tea factories processing tea. These businesses need to consider equipment costs during production and generally choose multi-functional tea production equipment. Drum-type tea fixing machines can be used for both fixing and drying tea leaves to enhance aroma. However, the processing parameters for fixing and drying differ, and currently available drum-type tea fixing machines cannot reliably meet the needs of both processes. Therefore, it is necessary to address this issue. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a tea production method that can reliably remove moisture.

[0004] The specific technical solution adopted in this invention is as follows.

[0005] A method for producing tea, characterized in that: the fixation treatment and drying treatment are carried out on the same drum fixation machine, and the drum fixation machine is equipped with a dehumidification unit A and a dehumidification unit B, wherein the dehumidification capacity of the dehumidification unit A is greater than that of the dehumidification capacity of the dehumidification unit B.

[0006] During the blanching process, both the A and B dehumidification units are activated simultaneously for dehumidification.

[0007] During the drying process, firstly, dehumidification unit A and dehumidification unit B are started simultaneously for dehumidification; then, dehumidification unit B is turned off and only dehumidification unit A is used for dehumidification; subsequently, dehumidification unit A is turned off and only dehumidification unit B is started for dehumidification; finally, dehumidification units A and B are turned off simultaneously.

[0008] The preferred solutions are: Unit A uses hot air to blow into the drum body for dehumidification, and Unit B uses hot air to blow into the drum body for dehumidification.

[0009] The hot air blown into Unit A is heated by a hot air heater installed on the outside of the drum body, while the hot air blown into Unit B is heated by the residual heat between the drum body and the outer shell.

[0010] Unit B blows hot air in from the top of the corresponding drum body along the length of the drum body.

[0011] A dehumidification unit blows hot air into the drum body from region A within the drum body along its length.

[0012] The present invention also provides a tea production device, including a frame and a drum body rotatably mounted on the frame, characterized in that: the frame is further provided with an A dehumidification unit and a B dehumidification unit for blowing air into the cylinder cavity of the drum body; the A dehumidification unit has an A air outlet, the air distribution direction of the A air outlet is set to correspond to the A area, the area through which the tea leaves fall from the highest point to the bottom of the inner wall of the drum body when the drum body rotates; the B dehumidification unit has a B air outlet, the B air outlet is set to correspond to the area with a larger height inside the drum body.

[0013] A further proposed solution is as follows: the two ends of the drum body are designated as end A1 and end A2, respectively. End A1 of the drum body is equipped with a feeding mechanism for adding tea raw materials into the drum body, and air outlets A and B are located at end A1.

[0014] The air outlets A and B both have the same air outlet direction as the length of the roller body.

[0015] Air outlets are spaced along the path of the falling tea leaves.

[0016] The A dehumidification unit also includes an A blower and an A air distribution box. The air outlet of the A blower is connected to the A air distribution box via an A connecting duct. The A connecting duct is equipped with an A heating component. The A air outlet is composed of a short pipe installed on the A air distribution box.

[0017] The beneficial effects of this invention are: by simultaneously setting up dehumidification unit A and dehumidification unit B, dehumidification becomes more reliable and precise, improving the effectiveness of tea fixation and drying processes, and thus enhancing tea quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a drum blanching machine.

[0019] Figure 2 This is a schematic diagram of the structure of Unit A, the dehumidification unit.

[0020] Figure 3 This is a structural schematic diagram of Unit A from another perspective.

[0021] The attached diagram is labeled as follows: 10-frame, 11-A air outlet, 12-A air distribution box, 13-A blower, 14-A heating component, 15-mounting plate, 16-outer casing, 21-B blower, 22-U-shaped tube. Detailed Implementation

[0022] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0023] As used herein, the terms “parallel,” “perpendicular,” etc., are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors.

[0024] A tea production method involves performing fixation and drying processes on the same drum fixation machine. The drum fixation machine is equipped with a dehumidification unit A and a dehumidification unit B, with the dehumidification capacity of unit A being greater than that of unit B. During the fixation process, both units A and B are activated simultaneously for dehumidification. During the drying process, both units A and B are first activated simultaneously for dehumidification; then unit B is shut down, and only unit A is used for dehumidification; subsequently, unit A is shut down, and only unit B is activated for dehumidification; finally, both units A and B are shut down simultaneously.

[0025] The preferred scheme is as follows: Dehumidification unit A uses hot air blown into the drum body for dehumidification, and dehumidification unit B also uses hot air blown into the drum body for dehumidification. The hot air blown into dehumidification unit A is heated by a hot air heater installed on the outside of the drum body, while the hot air blown into dehumidification unit B is heated by residual heat between the drum body and the outer shell. Dehumidification unit B blows hot air from the top of the corresponding drum body along the length of the drum body. Dehumidification unit A blows hot air from area A within the corresponding drum body along the length of the drum body. In this way, dehumidification unit A has a greater dehumidification capacity than dehumidification unit B, and the dehumidification precision is better, allowing moisture to be quickly removed during the fixation process, thus improving the fixation effect. During the tea drying stage, the opening and closing states of dehumidification units A and B are controlled separately to prevent the tea leaves from shrinking too quickly, allowing the aroma of the tea leaves to be fully released, thereby improving the quality of the tea. In summary, by simultaneously setting up both Dehumidification Unit A and Dehumidification Unit B, the dehumidification process becomes more reliable and precise, meeting the dehumidification requirements for both the withering and drying processes of tea. This allows the drum withering machine to reliably perform both withering and drying of tea, thereby improving tea quality. This equipment is particularly suitable for producing pan-fired green tea, where the results are even better.

[0026] like Figure 1 , 2As shown, a drum-type tea-killing machine includes a frame 10 and a drum body rotatably mounted on the frame 10. The frame 10 is also equipped with an A dehumidification unit and a B dehumidification unit for blowing air into the drum body's cavity. The A dehumidification unit has an A air outlet 11, and the air distribution direction of the A air outlet 11 corresponds to area A. A more preferred and precise method is as follows: the projection of the A air outlet 11 in the vertical plane A is denoted as A1 projection, and the projection of area A in the vertical plane A is denoted as A2 projection. The A1 projection is located within the A2 projection, or the A1 and A2 projections partially overlap. This can also be understood as the A air outlet 11 directing air distribution towards area A, which is the area along which the tea leaves fall from the highest point down the inner wall of the drum body as it rotates. A further embodiment is that the A air outlet 11 is located at the end of the drum body. The preferred configuration is as follows: the two ends of the drum body are designated as end A1 and end A2, respectively. End A1 of the drum body is equipped with a feeding mechanism for adding tea leaves into the drum body, and air outlet 11 is located at end A1. The air distribution direction of air outlet 11 is consistent with the length direction of the drum body. End A2 constitutes the unloading end of the drum fixing machine. By placing air outlet 11 at end A1, it will not affect the unloading process, and end A2 is an open end, which is more conducive to moisture removal.

[0027] A further design involves: air outlets 11 are spaced along the path of the falling tea leaves, preferably 2 to 4 outlets 11. The detailed design includes: the A dehumidification unit further comprises an A blower 13 and an A distribution box 12. The outlet of the A blower 13 is connected to the A distribution box 12 via an A connecting duct. An A heating element 14 is mounted on the A connecting duct. The A outlets 11 are formed by short pipes mounted on the A distribution box 12. The feeding mechanism is a feeding hopper. A ring-shaped, vertically arranged mounting plate 15 is provided at the A1 end of the drum body. The mounting plate 15 and the drum body are concentrically arranged. The discharge port of the feeding head is located in the empty area in the middle of the mounting plate 15. The A distribution box 12 is fixedly mounted on the mounting plate 15. The A heating element 14 can be an electric heater (hot air heater) or a ceramic heater. This allows for convenient and reliable distribution of hot air to the A area, increasing the dehumidification effect. The A distribution box 12 has the function of distributing airflow and adjusting air pressure.

[0028] It also includes a B dehumidification unit, which includes a B air outlet. The B air outlet is located in the area with a relatively large height inside the drum body, and the air outlet direction is the same as the air outlet direction of the drum body. The B dehumidification unit also includes a B blower 21. An outer shell 16 is provided on the outside of the drum body, and a B cavity is formed between the drum body and the outer shell 16. The B blower 21 is located at the A2 end of the drum body, and the air outlet of the B blower 21 is connected to one end of the B cavity. The B air outlet is formed by one end of a U-shaped pipe 22. One end of the U-shaped pipe 22 is fixedly installed on the upper part of the mounting plate 15, and the other end of the U-shaped pipe 22 is connected to the B cavity. The B cavity can be formed by a pipe, preferably by a sealing element between the drum body and the outer shell 16 to form the B cavity. The B cavity uses the waste heat of the drum blanching machine to heat the airflow blown in by the B blower 21, achieving an energy-saving effect. Setting up two sets of dehumidification units can meet the different processing needs of fixation and drying, realize the purpose of producing tea with one piece of equipment, and reduce the cost of equipment procurement for tea production.

[0029] The beneficial effects of this invention are as follows: Since the tea leaves are mainly concentrated on one side of the drum body for tumbling, by implementing the above scheme, the air outlet 11 is arranged correspondingly to area A. The air outlet 11 blows the tumbling and falling tea leaves, so that the tea leaves can be dehumidified quickly and reliably, improving the accuracy and precision of dehumidification, and improving the tea fixation effect and tea quality.

[0030] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A method of tea leaf production, characterised in that: The fixation treatment and the drying treatment are performed on the same cylinder fixation machine, the cylinder fixation machine is provided with an A moisture removal unit and a B moisture removal unit, the moisture removal capacity of the A moisture removal unit is greater than that of the B moisture removal unit; During the fixation treatment process, the A moisture removal unit and the B moisture removal unit are started simultaneously to remove moisture; During the drying treatment process, the A moisture removal unit and the B moisture removal unit are started simultaneously to remove moisture first; then the B moisture removal unit is closed and only the A moisture removal unit is used to remove moisture; subsequently, the A moisture removal unit is closed and only the B moisture removal unit is started to remove moisture; finally, the A moisture removal unit and the B moisture removal unit are closed simultaneously; The A moisture removal unit uses hot air blown into the cylinder body to remove moisture, and the B moisture removal unit also uses hot air blown into the cylinder body to remove moisture; the hot air blown by the A moisture removal unit is heated by a hot air heater arranged outside the cylinder body, and the hot air blown by the B moisture removal unit is heated by the residual heat between the cylinder body and the outer shell; The B moisture removal unit blows hot air from a position corresponding to the top of the cylinder body along the length direction of the cylinder body; the A moisture removal unit blows hot air from a position corresponding to the A area in the cylinder body along the length direction of the cylinder body; the A area is an area through which tea falls from the highest position on the inner wall of the cylinder body during rotation of the cylinder body; The two ends of the cylinder body are respectively marked as an A1 end and an A2 end, the A1 end of the cylinder body is provided with a feeding mechanism for feeding tea raw materials into the cylinder body, and the A air outlet and the B air outlet are arranged at the A1 end; the A air outlet is arranged at intervals along the falling path of the tea.

2. The tea leaf production method according to claim 1, characterized by: The A moisture removal unit further comprises an A air blower and an A air distribution box, the outlet of the A air blower is connected to the A air distribution box through an A connecting air pipe, the A connecting air pipe is provided with an A heating assembly, and the A air outlet is a short pipe arranged on the A air distribution box.

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