Fixation, cooling and screening production line for processing Wood Taiwan tribute tea by using Hua tea No. 10 fresh leaves

Abstract

The utility model relates to a fixation, cooling and screening production line for processing Wood Taiwan tribute tea from Hubei tea No.10 fresh leaves, which comprises a fixation mechanism, a group of cooling and conveying mechanisms, a winnowing mechanism and a screening mechanism, wherein one cooling and conveying mechanism is arranged between the fixation mechanism and the winnowing mechanism and used for conveying the tea leaves subjected to fixation into the winnowing mechanism, the winnowing mechanism is used for winnowing and impurity removal of the tea leaves, and the other cooling and conveying mechanism is arranged between the winnowing mechanism and the screening mechanism and used for conveying the tea leaves subjected to winnowing into the screening mechanism. Through the fixation mechanism, the cooling and conveying mechanism, the winnowing mechanism, the screening mechanism, the conveyor and a plurality of fans, tea leaves can be cooled and graded before rolling, so that the problems of dark color and uneven tenderness caused by high temperature in the processing process of Wood Taiwan tribute tea are effectively solved, and the waste of the tea leaves in the production process is effectively reduced; the production quality of the tribute tea is improved, so that the production cost is reduced, and the economic benefits of the tribute tea are improved.

Description

Technical Field

[0001] The present application relates to the technical field of tea production, and in particular to a production line for withering, cooling and screening of Wujiatai tribute tea using fresh leaves of E-Tea No. 10. Background Art

[0002] E-tea No. 10 is a tea tree variety bred from the natural hybrid offspring of the Enshi moss tea group tea garden through single plant selection. It has a large promotion area and is suitable for machine harvesting. However, after machine harvesting, there are many broken leaves of varying ages. If the grades are not screened and impurities are not removed in time after killing the green leaves, the quality of the finished tea will be affected. At the same time, the color of the green tea processed by this variety is darker than that of Fuding Dabai and other varieties. In particular, if the temperature is not cooled in time during the killing process, the color quality of the green tea will be seriously affected.

[0003] However, the existing Wujiatai tribute tea is usually rolled directly after withering, without cooling and grading the tea leaves before rolling, resulting in high temperature and dark color of the tea leaves during subsequent processing, as well as problems such as uneven age and tenderness, resulting in a lot of waste and failure to fully utilize the advantages of tea resources, which affects the quality of Wujiatai tribute tea and causes losses to the economic benefits of Wujiatai tribute tea.

[0004] In view of the above problems, a production line for withering, cooling and screening of Wujiatai tribute tea for processing fresh leaves of Echa No. 10 is designed. Utility Model Content

[0005] The embodiment of the present application provides a production line for withering, cooling and screening of Wujiatai tribute tea for processing fresh leaves of Hubei Tea No. 10, so as to solve the problem in the related art that tribute tea is usually directly rolled after withering, without cooling and grading the tea leaves before rolling, resulting in high temperature and dark color of the tea leaves in subsequent processing, unevenness of age and tenderness, and greater waste.

[0006] In the first aspect, a production line for processing Wujiatai tribute tea withering, cooling and screening of Echa No. 10 fresh leaves is provided, comprising:

[0007] A tea-withering mechanism, a group of cooling and conveying mechanisms, a pneumatic selection mechanism and a screening mechanism, wherein the tea-withering mechanism is used for withering tea leaves, wherein one cooling and conveying mechanism is arranged between the tea-withering mechanism and the pneumatic selection mechanism and is used for conveying the withered tea leaves into the pneumatic selection mechanism, wherein the pneumatic selection mechanism is used for pneumatic selection and impurity removal of tea leaves, and another cooling and conveying mechanism is arranged between the pneumatic selection mechanism and the screening mechanism and is used for conveying the pneumatically selected tea leaves into the screening mechanism, wherein the screening mechanism is used for screening and grading tea leaves;

[0008] The cooling conveying mechanism comprises a conveyor and a plurality of fans, and the plurality of fans are distributed along the length of the conveyor.

[0009] In some embodiments, the fixing mechanism is a drum fixing machine, and a plurality of temperature sensors and humidity sensors are arranged inside the drum fixing machine.

[0010] In some embodiments, a fresh leaf feeding mechanism is further included, wherein the discharge port of the fresh leaf feeding mechanism is connected to the feed port of the withering mechanism and is used to feed the fresh leaves into the withering mechanism.

[0011] In some embodiments, a horizontal conveying mechanism is also included, which includes a plurality of horizontal conveyor one and a group of horizontal conveyor two, wherein a group of horizontal conveyor two is relatively arranged at two ends of a conveyor on one side, and a plurality of horizontal conveyor one is arranged between the outlet of the corresponding killing mechanism and the horizontal conveyor two.

[0012] In some embodiments, a lifting mechanism is further included, which is arranged between the screening mechanism and the cooling and conveying mechanism on one side and is used to lift and convey the tea leaves on the cooling and conveying mechanism to the inside of the screening mechanism.

[0013] In some embodiments, the air selection mechanism includes an air selection chamber, a feed inlet, an air duct and a plurality of discharge ports, wherein the feed inlet is arranged on the air selection chamber, the air duct is connected to the air selection chamber and is used to supply air to the air selection chamber, and the plurality of discharge ports are arranged in sequence below the air selection chamber;

[0014] The air duct comprises an air duct and a fan. The fan is arranged at one end of the air duct, and the other end of the air duct is communicated with the air selection chamber.

[0015] The embodiment of the present application provides a production line for the cooling and screening of Wujiatai tribute tea for processing fresh leaves of Hubei Tea No. 10. The continuous screening process of the tribute tea can be realized through the screening mechanism, cooling and conveying mechanism, air selection mechanism, screening mechanism, conveyor and several fans. The tea leaves can be cooled and graded before rolling, effectively solving the problem of dark color and uneven age caused by high temperature during the processing of tribute tea, effectively reducing the waste of tea leaves in the production process, improving the production quality of tribute tea, thereby reducing production costs and improving the economic benefits of tribute tea. In addition, since the present invention adopts a continuous equipment combination, by adjusting the operating parameters, it is also suitable for the screening operation of other tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure provided for an embodiment of the present application;

[0018] Figure 2 A top view provided for an embodiment of the present application;

[0019] Figure 3 This is a front cross-sectional view of the air separation mechanism provided in an embodiment of the present application.

[0020] In the figure: 1. Withering mechanism; 2. Cooling and conveying mechanism; 21. Conveyor; 22. Fan; 3. Air selection mechanism; 31. Air selection chamber; 32. Feed inlet; 33. Air duct; 34. Discharge outlet; 4. Screening mechanism; 5. Fresh leaf feeding mechanism; 6. Horizontal conveying mechanism; 61. Horizontal conveyor 1; 62. Horizontal conveyor 2; 7. Lifting mechanism. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] The embodiment of the present application provides a production line for withering, cooling and screening of Wujiatai tribute tea for processing fresh leaves of Hubei Tea No. 10, which can solve the problem in the related art that tribute tea is usually directly rolled after withering, without cooling and grading the tea leaves before rolling, resulting in high temperature and dark color of the tea leaves in subsequent processing, unevenness of age and tenderness, and greater waste.

[0023] See also Figure 1-Figure 3 A production line for cooling and screening tea leaves for processing Wujiatai tribute tea leaves of Hubei Tea No. 10 includes: a tea-killing mechanism 1, a group of cooling and conveying mechanisms 2, a pneumatic mechanism 3 and a screening mechanism 4, wherein the tea-killing mechanism 1 is used for killing tea leaves, wherein one cooling and conveying mechanism 2 is arranged between the tea-killing mechanism 1 and the pneumatic mechanism 3 and is used for sending the killed tea leaves into the pneumatic mechanism 3, wherein the pneumatic mechanism 3 is used for pneumatic separation of tea leaves, and another cooling and conveying mechanism 2 is arranged between the pneumatic mechanism 3 and the screening mechanism 4 and is used for sending the pneumatically selected tea leaves into the screening mechanism 4, wherein the screening mechanism 4 is used for screening and grading tea leaves; the cooling and conveying mechanism 2 includes a conveyor 21 and a plurality of fans 22, wherein the plurality of fans 22 are distributed along the length of the conveyor 21.

[0024] It should be noted that the conveyor 21 on one side is arranged between the fixing mechanism 1 and the air separation mechanism 3, one end of the conveyor 21 is located at the bottom of the outlet of the fixing mechanism 1, and the other end is located above the inlet of the air separation mechanism 3; the conveyor 21 on the other side is arranged between the air separation mechanism 3 and the screening mechanism 4, one end of the conveyor 21 is located at the bottom of the outlet of the air separation mechanism 3, and the other end is located above the inlet of the screening mechanism 4.

[0025] In actual operation, the tea leaves are withered by the withering mechanism 1. After the withering is completed, the withered tea leaves are sent to the air selection mechanism 3 through the conveyor 21 on one side, and the fan 22 dissipates the heat of the tea leaves during the transportation. Subsequently, the air selection mechanism 3 is turned on to perform an air selection and impurity removal process on the tea leaves. The impurity-removed tea leaves fall onto the conveyor 21 on the other side, and after the heat is dissipated by the fan 22, they are sent to the screening mechanism 4, and the screening mechanism 4 performs a screening and grading process on the tea leaves.

[0026] In this way, the continuous process of withering and screening of tribute tea can be realized, and the tea leaves can be cooled and graded before rolling, effectively solving the problem of dark color and uneven age caused by high temperature during the processing of tribute tea, effectively reducing the waste of tea leaves during the production process, improving the production quality of tribute tea, thereby reducing production costs and improving the economic benefits of tribute tea. In addition, since the present invention adopts a continuous equipment combination, by adjusting the operating parameters, it is also suitable for the withering and screening operations of other tea leaves.

[0027] The conveyor 21 in this embodiment is an inclined conveyor, and the model may be 6CFL-100.

[0028] Preferably, Figure 1 As shown, the present embodiment further includes a fresh leaf feeding mechanism 5, the discharge port of the fresh leaf feeding mechanism 5 is connected with the feed port of the withering mechanism 1, and is used to feed the fresh leaves into the withering mechanism 1.

[0029] The fresh leaf feeding mechanism 5 is an elevator, and the elevator model can be 6CXS-40. The picked fresh leaves can be automatically fed into the withering mechanism 1 through the elevator, achieving the effect of automatic feeding, reducing the physical labor of the staff and improving production efficiency.

[0030] The fan 22 in this embodiment has a frequency of 50 Hz, a fan speed of 1400 r / min, and a power of 70 W.

[0031] The tea-fixing mechanism 1 in this embodiment is a drum tea-fixing machine, and a plurality of temperature sensors and humidity sensors are arranged inside the drum tea-fixing machine, and a plurality of camera devices are arranged between the drum tea-fixing machine and the conveyor 21.

[0032] The drum withering machine has annular heating tubes evenly installed on the drum body and the outer side of the drum body at a distance of 2.5 cm, and the spacing between the heating tubes is 15 cm. A number of temperature sensors and a number of humidity sensors are evenly arranged on the outer wall of the drum.

[0033] The temperature control system of the drum withering machine adopts a PID control system, which transmits data acquired by temperature and humidity sensors and cameras in real time to the control system, and compares and analyzes the control system with the initially set parameters to control the withering working parameters during the processing.

[0034] In actual operation, before tea processing, the withering mechanism 1 is turned on, and the movement switch of the drum withering machine is turned on first to rotate the drum, and then the temperature switch is turned on. When the drum temperature reaches the withering operation requirements, the switch of the fresh leaf feeding mechanism 5 is turned on, and the tea leaves are transported to the drum withering machine through the fresh leaf feeding mechanism 5. The temperature and humidity sensor measures the drum temperature in real time, and feeds back to the control system. The PLC controls the temperature and humidity of the drum withering machine. The camera device takes real-time photos of the tea leaves after withering, and the grayscale co-occurrence matrix is ​​used to calculate the texture features of the image. The energy value, entropy value, contrast, correlation, and inverse difference are obtained to control the drum speed of the withering machine to realize intelligent operation. The temperature of the tea drum withering machine is 250-300°C, the withering time is 1.5-2.5min, and the moisture content of the tea leaves after withering is controlled at 58%-65%.

[0035] The intelligentization of Wujiatai tribute tea withering process is achieved through the withering temperature and humidity PID control system and the withering image analysis feedback control system.

[0036] In one embodiment, it also includes a horizontal conveying mechanism 6, which includes a plurality of horizontal conveyors 61 and a group of horizontal conveyors 62. The group of horizontal conveyors 62 are relatively arranged at both ends of a conveyor 21 on one side, and the plurality of horizontal conveyors 61 are arranged between the outlet of the corresponding fixing mechanism 1 and the horizontal conveyors 62. The conveyor 21 on one side is located at the middle bottom of a group of horizontal conveyors 62, and the horizontal conveyor 2 62 is located at the bottom of the outlet of the horizontal conveyor 61 away from the fixing mechanism 1.

[0037] The withering mechanism 1 can be set up into multiple groups, and the withering mechanism 1 can be synchronously fed by multiple fresh leaf feeding mechanisms 5. At the same time, the tea leaves after withering pass through multiple horizontal conveyors 1 61 and horizontal conveyor 2 62 to be sent to the top of the cooling conveying mechanism 2, thereby forming multiple feeding production lines to avoid the subsequent production lines being in an idle state during the withering process of the tea leaves, maintain the saturation rate of the production operation, and improve the overall production efficiency.

[0038] It is understandable that in order to keep the video clear, the video device is arranged above the roller fixing machine and the horizontal conveyor 61.

[0039] Furthermore, it also includes a lifting mechanism 7, which is arranged between the screening mechanism 4 and the cooling and conveying mechanism 2 on one side, and is used to lift and convey the tea leaves on the cooling and conveying mechanism 2 to the inside of the screening mechanism 4.

[0040] The lifting mechanism 7 is a hoist, which lifts the cooled tea leaves on the conveyor 21 and delivers them into the screening mechanism 4, where the tea leaves are screened and upgraded.

[0041] Specifically, the air separation mechanism 3 in this embodiment includes an air separation chamber 31, a feed port 32, an air duct 33 and a plurality of discharge ports 34. The feed port 32 is arranged on the air separation chamber 31, the air duct 33 is connected with the air separation chamber 31 and is used to supply air to the air separation chamber 31, and a plurality of discharge ports 34 are arranged in sequence below the air separation chamber 31. Among them, the air duct 33 includes an air duct and a fan. The fan is arranged at one end of the air duct, and the other end of the air duct is connected with the air separation chamber 31.

[0042] In actual operation, the cooled tea leaves are conveyed to the feed port 32 through the conveyor 21, and the tea leaves fall into the air selection chamber 31 through the feed port 32. The fan is turned on to send gas into the air selection chamber 31 through the air duct. Through the action of wind force, strong wind force is generated in the air selection chamber 31. After the tea leaves fall into the air selection chamber 31, they are affected by the wind force. Tea leaves and impurities of different particle sizes will be blown to different degrees, and fall onto different discharge ports 34 according to their quality and surface area, so that the air-selected tea leaves fall into the corresponding discharge ports 34 in turn, and fall onto the conveyor 21 below through the discharge port 34.

[0043] The discharge port 34 is plugged with a sealing cover, which shields the discharge port, so that the staff can conveniently select to deliver tea leaves in different discharge ports 34 , and conveniently collect impurities such as stones and sand in the discharge port 34 .

[0044] It also includes several gear adjustment components, which are arranged above the corresponding discharge ports. The gear adjustment mechanism includes a rotating shaft, a baffle and an adjustment handle. By turning the adjustment handle, the rotating shaft is driven to rotate, and the angle and height of the baffle are adjusted, thereby changing the flow state of the tea leaves at the discharge port 34. This adjustment method can achieve accurate grading of tea leaves, so that tea leaves of different qualities can be effectively separated.

[0045] The screening mechanism 4 in this embodiment is a sieve bed, the front sieve bed is equipped with a 3-8 hole sieve, and the rear sieve bed is equipped with a 10-20 hole sieve. The sieve material is low-carbon steel wire, the shape of the sieve hole is square, the angle of the screen surface is adjusted to 2-6°, and a belt drive is adopted. The sieve bed is buffered by a spring steel plate, and the model of the sieve bed can be 6CFC-40.

[0046] In actual operation, the tea leaves after withering are transported to the top of the feed port 32 of the air selection mechanism 3 by the conveyor 21. The wind direction angle of the air selection mechanism is adjusted to 25-35° and the wind speed is 8-10m / s. The tea leaves after air selection will fall onto the conveyor 21 through the discharge port 34. During the transportation process, the tea leaves are cooled by the fan 22. The cooling time is 10-15min. The leaf thickness is 3-5cm, so that the temperature of the tea leaves drops to 30-35℃.

[0047] The cooled tea leaves are transported to the screening mechanism 4 through the lifting mechanism 7, and the tea leaves transported in sequence are screened by the screens with different apertures on the screening mechanism 4. During the screening process, the tea leaves on the screen and the tea leaves under the screen of different openings are collected and enter the subsequent rolling, shaping and drying process.

[0048] It should be noted that different aperture sieves can be selected according to the air-selected tea leaves sent out from different discharge ports 34. For example, when the tea leaves are transported to the screening mechanism 4, for the tea leaves from the second port, a 4-hole sieve is installed on the front screen, and a 10-hole sieve is installed on the rear screen; for the tea leaves from the third port, a 6-hole sieve is installed on the front screen, and a 12-hole sieve is installed on the rear screen; for the tea leaves from the fourth port, an 8-hole sieve is installed on the front screen, and a 16-hole sieve is installed on the rear screen. In this way, the tea leaves sieved from different ports and the tea leaves under the sieve are collected to complete the withering and screening operations, and enter the subsequent rolling, shaping and drying processes.

[0049] It should be noted that a vibrating feeding device is provided on the feed port 32 in the present embodiment, and the vibrating feeding device generates mechanical vibration to make the tea leaves fall into the air selection mechanism 3.

[0050] Preferably, uniform feeders are provided at the discharge ports of the fresh leaf feeding mechanism 5, the cooling and conveying mechanism 2 and the lifting mechanism 7 in this embodiment.

[0051] A uniform feeder is a device used to ensure uniform feeding of materials. It is widely used in various industries and production environments that require uniform feeding. This is a prior art and will not be described in detail here.

[0052] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0053] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0054] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A production line for processing Wujiatai tribute tea withering, cooling and screening of fresh leaves of Echa No. 10, characterized in that: include: A tea-withering mechanism (1), a group of cooling and conveying mechanisms (2), a pneumatic selection mechanism (3) and a screening mechanism (4), wherein the tea-withering mechanism (1) is used for withering tea leaves, wherein one cooling and conveying mechanism (2) is arranged between the tea-withering mechanism (1) and the pneumatic selection mechanism (3) and is used for conveying the withered tea leaves into the pneumatic selection mechanism (3), wherein the pneumatic selection mechanism (3) is used for pneumatic selection and impurity removal of the tea leaves, and another cooling and conveying mechanism (2) is arranged between the pneumatic selection mechanism (3) and the screening mechanism (4) and is used for conveying the pneumatically selected tea leaves into the screening mechanism (4), wherein the screening mechanism (4) is used for screening and grading the tea leaves; The cooling conveying mechanism (2) comprises a conveyor (21) and a plurality of fans (22), wherein the plurality of fans (22) are distributed along the length of the conveyor (21).

2. The production line for processing Wujiatai tribute tea withering, cooling and screening of Echa No. 10 fresh leaves as claimed in claim 1, characterized in that: The tea-fixing mechanism (1) is a drum tea-fixing machine, and a plurality of temperature sensors and humidity sensors are arranged inside the drum tea-fixing machine.

3. The production line for processing Wujiatai tribute tea withering, cooling and screening of Echa No. 10 fresh leaves as claimed in claim 1, characterized in that: It also comprises a fresh leaf feeding mechanism (5), the discharge port of the fresh leaf feeding mechanism (5) is connected with the feed port of the withering mechanism (1), and is used to feed the fresh leaves into the withering mechanism (1).

4. The production line for processing Wujiatai tribute tea withering, cooling and screening of Echa No. 10 fresh leaves as claimed in claim 1, characterized in that: It also includes a horizontal conveying mechanism (6), which includes a plurality of horizontal conveyors (61) and a group of horizontal conveyors (62), wherein the group of horizontal conveyors (62) are relatively arranged at both ends of the conveyor (21) on one side, and the plurality of horizontal conveyors (61) are arranged between the outlet of the corresponding killing mechanism (1) and the horizontal conveyors (62).

5. The production line for processing Wujiatai tribute tea withering, cooling and screening of Echa No. 10 fresh leaves as claimed in claim 1, characterized in that: It also comprises a lifting mechanism (7), which is arranged between the screening mechanism (4) and the cooling and conveying mechanism (2) on one side and is used to lift and convey the tea leaves on the cooling and conveying mechanism (2) to the inside of the screening mechanism (4).

6. The production line for processing Wujiatai tribute tea withering, cooling and screening of Echa No. 10 fresh leaves as claimed in claim 1, characterized in that: The air selection mechanism (3) comprises an air selection chamber (31), a material inlet (32), an air duct (33) and a plurality of material outlets (34); the material inlet (32) is arranged on the air selection chamber (31); the air duct (33) is connected to the air selection chamber (31) and is used to supply air to the air selection chamber (31); and the plurality of material outlets (34) are arranged in sequence below the air selection chamber (31); The air duct (33) comprises an air duct and a fan, wherein the fan is arranged at one end of the air duct, and the other end of the air duct is connected to the air selection chamber (31).

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