Keemun black tea primary and refining integrated processing system and processing technology

Abstract

The application discloses a kind of qimen black tea initial, refining integrated processing system and processing technology, including initial workshop and refining workshop;Initial workshop is sequentially provided with storage green machine unit, withering machine unit, rolling machine unit, fermentation equipment, first drying equipment, spread cooling equipment and second drying equipment according to initial process flow;Refining workshop is sequentially provided with winnowing machine, rolling sieve machine unit, plane round sieve machine unit, winnowing machine unit, color selection machine unit, third drying equipment, uniform heap machine unit and weighing and discharging equipment according to refining process flow;Initial workshop is connected by initial, refining connection equipment, the input end of initial, refining connection equipment is connected with the output end of second drying equipment, and the input end of winnowing machine is connected with the output end of initial, refining connection equipment.The initial workshop and refining workshop of the application are connected using connection equipment, for the conveying of crude tea, realize qimen Gongfu black tea initial, refining integrated intelligent processing, and improve production efficiency by more than 35%.

Description

Technical Field

[0001] This invention relates to the technical field of duct-based black tea fermentation, specifically to an integrated processing system and process for the initial and refined processing of Qimen black tea. Background Technology

[0002] The current processing technique for Qimen black tea involves initial processing followed by refining. Each tea season, fresh leaves are processed into raw tea and stored in warehouses. After the tea season ends, the raw tea is removed from storage and refined into finished tea. This traditional processing method has the following drawbacks:

[0003] 1. The long processing cycle is not conducive to current market sales. Initial processing takes about 2 months, and refining takes 3-6 months. From fresh leaf processing to finished product market launch, it takes at least 2-3 months, which cannot meet market expectations.

[0004] 2. The long interval between the initial and refining processes causes the tea leaves to absorb more moisture after the rainy season, requiring repeated firing and resulting in the loss of nutrients (such as tea polyphenols and theanine). Repeated firing of black tea can alter some of its internal nutrients, hindering the stable preservation of these valuable nutrients.

[0005] 3. Increased production and storage costs for enterprises due to the handling of raw tea. After initial processing, raw tea undergoes numerous handling processes, which increases production costs on the one hand, and the centralized, categorized, and batch-based handling of raw tea also puts pressure on warehousing. Summary of the Invention

[0006] To address the technical problems existing in the prior art, this invention provides an integrated processing system for the initial and refined processing of Qimen black tea.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] This invention relates to an integrated processing system for the primary and refined processing of Qimen black tea, comprising a primary processing workshop and a refined processing workshop;

[0009] The primary processing workshop is equipped with a foraging unit, a withering unit, a rolling unit, fermentation equipment, a first drying unit, a cooling unit, and a second drying unit, arranged in sequence according to the primary processing process.

[0010] The refining workshop is equipped with air separators, rotary screens, flat circular screens, air separators, color sorters, third drying equipment, homogenizing units, and weighing and feeding equipment in sequence according to the refining process.

[0011] The primary processing workshop is connected to the primary and refining connecting equipment. The input end of the primary and refining connecting equipment is connected to the output end of the second drying equipment, and the output end of the primary and refining connecting equipment is connected to the input end of the air separator.

[0012] Furthermore, the primary and refining connection equipment includes a primary vertical conveyor connected to the end of the second drying equipment, a cooling transmission system connected to the end of the primary vertical conveyor, and an electronic weighing flat conveyor located at the end of the cooling transmission system.

[0013] Furthermore, the electronic weighing conveyor has two output ends. One output end is directly connected to the air separator, and the other output end is connected to the feeding port via the feeding gooseneck conveyor. The feeding port is located on the ground, and a tea storage cavity is dug out from the ground. The feeding gooseneck conveyor has a bidirectional conveying function, which can both input the tea output from the electronic weighing conveyor into the tea storage cavity and transport the tea in the tea storage cavity to the air separator.

[0014] Furthermore, the primary and refining connection equipment is a closed structure that extends horizontally from the top of the primary workshop to the top of the refining workshop.

[0015] Furthermore, the cooling transmission system consists of a flat conveyor, on which a cooling air duct is opened on the sealed shell of the flat conveyor, and a variable frequency fan is installed inside the cooling air duct to remove the heat from the tea leaves on the flat conveyor.

[0016] Furthermore, a leaf-splitting rotating cage is installed between the initial vertical conveyor and the cooling conveyor system. The leaf-splitting rotating cage is driven to rotate by a motor. A through groove is opened on the circumference of the leaf-splitting rotating cage. The inner cavity of the leaf-splitting rotating cage is hollow, and a blade is installed in the inner cavity. The blade shaft is eccentrically set with the leaf-splitting rotating cage. The blade is rotatably connected to the blade shaft. The blade corresponds one-to-one with the through groove. Therefore, when the leaf-splitting rotating cage rotates, since some blades are located in the through groove, it will push the blades to rotate. Since the rotation center of the blade is eccentric with the rotation center of the leaf-splitting rotating cage, the blade will slide out or slide in the through groove during rotation. Multiple sets of blades are set so that two blades extend out of the through groove at the same time. The tea leaves are input between the extended blades, and the rotation carries the tea leaves between the two blades to the horizontal conveyor on one side.

[0017] Furthermore, the blades are arranged in three groups, each group consisting of two fixedly connected blades, and the blades of each group are individually connected to the blade shaft by a rotating shaft.

[0018] Furthermore, the blade shaft is a hollow structure, and one end of the blade shaft is fixedly connected to the support on the top of the workshop. One end of the blade shaft is connected to a fan. Micro-flow holes are opened on the circumference of the blade rotating cage, and brush plates are installed on the inner wall of the through groove for cleaning the blades.

[0019] Furthermore, the circumference of the leaf-rotating cage is provided with two layers of support surfaces, namely an upper support surface and a lower support surface. A spring connects the upper support surface and the lower support surface. A side plate is connected to the side of the upper support surface. The side plate serves as the inner wall of the through groove. The side plate and the lower support surface can slide against each other. Flexible protrusions are provided on the side plate, and flexible protrusions are also provided on the blades. When the blades extend or extend, they squeeze the flexible protrusions, causing the upper support surface to vibrate.

[0020] A processing technology for the initial and refined processing of Qimen black tea includes the following steps: storage of green leaves - withering - rolling - fermentation - drying - cooling and transport - sieving - cutting - winnowing - color sorting - blending - uniform stacking - packaging;

[0021] The process involves using a cooling conveyor system to directly transfer the raw tea leaves to the refining workshop. By adjusting the conveyor speed and fan rotation speed, the raw tea leaves are completely cooled during the conveying process to meet the refining requirements.

[0022] The beneficial effects of this invention are:

[0023] This invention connects the primary processing workshop and the refining workshop with a connecting device for transporting raw tea, realizing integrated intelligent processing of Qimen black tea from primary to refining stages. This increases production efficiency by more than 35%, reduces the number of batches of raw tea entering and leaving the warehouse by at least 10 per day, alleviates storage pressure, completes finished product processing within 24 hours, and allows for direct packaging and market entry, effectively enhancing market competitiveness. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0025] In the attached diagram:

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the initial and refined connection device of the present invention;

[0028] Figure 3 This is a schematic diagram of the leaf-shaped rotating cage structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the use state of the leaf-splitting rotary cage of the present invention;

[0030] Figure 5 This is a schematic diagram of the supporting surface structure of the present invention. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] This invention provides an integrated processing system for the initial and refined processing of Qimen black tea. (Refer to...) Figure 1 As shown, it includes a primary processing workshop and a refining workshop;

[0033] The primary processing workshop is equipped with a foraging unit, a withering unit, a rolling unit, fermentation equipment, a first drying unit, a cooling unit, and a second drying unit, arranged in sequence according to the primary processing process.

[0034] The refining workshop is equipped with air separators, rotary screens, flat circular screens, air separators, color sorters, third drying equipment, homogenizing units, and weighing and feeding equipment in sequence according to the refining process.

[0035] The primary processing workshop is connected to the primary and refining connecting equipment. The input end of the primary and refining connecting equipment is connected to the output end of the second drying equipment, and the output end of the primary and refining connecting equipment is connected to the input end of the air separator, which is used to directly transport the raw tea after primary processing to the refining workshop for further processing.

[0036] Continue to refer to Figure 2 As shown, the primary and refining connection equipment includes a primary vertical conveyor connected to the end of the second drying equipment, a cooling transmission system connected to the end of the primary vertical conveyor, and an electronic weighing conveyor located at the end of the cooling transmission system. The electronic weighing conveyor has two output ends: one output end is directly connected to the air separator, and the other output end is connected to the feeding port via a feeding gooseneck conveyor. The feeding port is located on the ground, with a tea storage chamber dug downwards. The feeding gooseneck conveyor has a bidirectional conveying function, capable of both feeding tea from the electronic weighing conveyor into the tea storage chamber and feeding tea from the tea storage chamber into the air separator. In actual implementation, the feeding gooseneck conveyor is set to connect directly to the air separator from the bottom tea storage chamber, with the output end of the electronic weighing conveyor positioned in the middle of the feeding gooseneck conveyor. If tea leaves need to be transported to the air separator for processing in real time, the feed gooseneck conveyor moves upwards directly. If tea leaves need to be temporarily stored in the tea storage chamber, the feed gooseneck conveyor moves downwards. Similarly, by controlling the feed gooseneck conveyor, tea leaves from the tea storage chamber can also be transported to the air separator. The tea storage chamber is a redundant design, serving as a transfer station. It can receive raw tea leaves from the primary processing workshop and can also temporarily store raw tea leaves from other places, playing a role in regulating production during peak processing seasons.

[0037] like Figure 1 as well as Figure 2 As shown, the primary and refining connection equipment is a closed structure, encased in a metal shell, connecting the two workshops from the top. (Continue referring to...) Figure 2 As shown, the cooling transmission system consists of a flat conveyor. A cooling air duct is opened on the sealed shell of the flat conveyor, and a variable frequency fan is installed in the cooling air duct to remove the temperature of the tea leaves on the flat conveyor.

[0038] Reference Figure 3 and Figure 4 As shown, a leaf-splitting rotating cage 2 is installed between the initial vertical conveyor and the cooling conveyor system. The leaf-splitting rotating cage 2 is driven to rotate by a motor 1. A through groove 21 is opened on the circumference of the leaf-splitting rotating cage 2. The inner cavity of the leaf-splitting rotating cage 2 is hollow, and a blade shaft 3 is installed in the inner cavity. The blade shaft 3 is eccentrically set with the leaf-splitting rotating cage 2. A blade 32 is rotatably connected to the blade shaft 3. The blade 32 corresponds one-to-one with the through groove 21. Therefore, when the leaf-splitting rotating cage 2 rotates, since some of the blades 32 are located in the through groove 21, the blades 32 will be pushed to rotate. Since the rotation center of the blades 32 is eccentric with the rotation center of the leaf-splitting rotating cage 2, the blades 32 will slide out or slide in the through groove 21 during rotation. Multiple sets of blades 32 are provided, so that two blades 32 extend out of the through groove 21 at the same time. The tea leaves are input between the extended blades 32, and the rotation carries the tea leaves between the two blades 32 to the horizontal conveyor on one side.

[0039] Reference Figure 3-4 As shown, the blades 32 are arranged in three groups, each group consisting of two fixedly connected blades. Each group of blades is individually rotatably connected to the blade shaft 3 via a rotating shaft 31. In other words, the blades in each group are in a relative rotational relationship. Figure 4 The B-blade and the blade marked with the same shade on the opposite side belong to the same group. When one of the blades in the group extends out of the through groove 21, the other blade extends into the through groove 21, and vice versa, to ensure that the leaf-splitting rotating cage 2 pushes the blade.

[0040] Furthermore, the blade shaft 3 is a hollow structure, and one end of the blade shaft 3 is fixedly connected to the support on the top of the workshop. A fan is connected to the other end of the blade shaft 3. Micro-flow holes are opened on the circumference of the blade rotating cage 2. A brush plate is provided on the inner wall of the through groove 21 for cleaning the blades. The circumference of the blade rotating cage 2 is provided with two layers of support surfaces, namely the upper support surface 22 and the lower support surface 221. A spring is connected between the upper support surface 22 and the lower support surface 221. A side plate is connected to the side of the upper support surface 22. The side plate serves as the inner wall of the through groove 21. The side plate and the lower support surface 221 can slide against each other. Flexible protrusions 224 are provided on the side plate. Flexible protrusions 300 are also provided on the blade 23. When the blade 32 extends or extends, it squeezes the flexible protrusions 224, causing the upper support surface 22 to vibrate.

[0041] The first function of the leaf-splitting rotating drum 2 is to separate the leaves, that is, to even out the tea leaves output from the vertical conveyor. (Refer to...) Figure 4As shown, the tea leaves enter between leaves A and B. Since the space in this area is fixed during rotation, the leaf-separating drum 2 only needs to rotate at a certain speed, usually low speed. The volume of tea leaves it receives each time is also relatively fixed. Then, the tea leaves are scattered onto the flat conveyor on the right side of the diagram through rotation, which can achieve the effect of uniform material distribution.

[0042] Furthermore, a temporary storage chamber can be set at the output port of the vertical conveyor, with an electronic valve at the bottom to regulate the flow rate. In traditional transport systems, either a flatbed leveling machine is used for leveling, but this type of machine is too large for the scenario described in this invention; or multiple distribution rakes are installed on the flat conveyor for distribution. However, the initially processed tea leaves are brittle after drying and easily broken. Moreover, the tea leaves coming from the initial processing contain a significant amount of tea dust. The distribution rakes themselves are mounted on rotating shafts, and over time, tea dust can affect operation. Since the conveying equipment of this invention is located at the top of the workshop, maintenance is difficult. Additionally, the distribution rake installation structure is not compact and generally requires multiple sets.

[0043] This application utilizes the leaf-splitting rotary drum 2 for material distribution, while also using the rotary drum as a bellows. A second function of the rotary drum is cooling; it cools the material during distribution and then spreads it evenly on the horizontal conveyor. Only one rotary drum 2 needs to be installed, located at the top of the vertical conveyor for easy maintenance. Furthermore, the rotary drum leaf distribution method prevents tea leaves from being compressed during spreading.

[0044] In the specific design, the blade shaft 3 is a hollow structure, and one end of the blade shaft 3 is fixedly connected to the support at the top of the workshop. One end of the blade shaft 3 is connected to a fan. Micro-flow holes are opened on the circumference of the blade rotating cage 2. A brush plate or sponge plate is installed on the inner wall of the through groove (21) for cleaning the blades. Due to the static electricity on the blade surface, it may have an adsorption effect on tea dust. Therefore, when it goes in and out of the through groove 21, the tea dust is cleaned by friction.

[0045] A micro-airflow is generated by a fan to remove the heat from the raw tea extracted by the leaf-splitting rotating drum 2. At the same time, it can also remove some tea dust.

[0046] Reference Figure 4 As shown, the circumference of the leaf-shaped rotating cage 2 can also be designed as a concave structure, and baffles are provided on both sides of the leaf-shaped rotating cage 2 (such as...). Figure 3 As shown in the figure, an internal air box is formed, which has better airflow guidance, significant cooling effect, and better flattening effect.

[0047] Additionally, refer to Figure 5As shown. The circumference of the leaf-splitting rotating cage (2) is provided with two layers of support surfaces, namely the upper support surface (22) and the lower support surface (221). A spring is connected between the upper support surface (22) and the lower support surface (221). A side plate is connected to the side of the upper support surface (22). The side plate serves as the inner wall of the through groove (21). The side plate and the lower support surface (221) can slide against each other. Flexible protrusions (224) are provided on the side plate. Flexible protrusions (300) are also provided on the blades (23). When the blades (32) extend or extend, they squeeze the flexible protrusions (224), causing the upper support surface (22) to vibrate, so that the micro-airflow can carry away the tea dust or powder on the support surface.

[0048] In summary, the overall processing flow of this invention includes the following: withering, rolling, fermentation, drying, cooling and conveying, sieving, chopping, winnowing, color sorting, blending, homogenization, and packaging. After initial processing, the fresh leaves are directly conveyed to the refining workshop for further processing using a cooling conveyor system. The system utilizes a horizontal conveyor and fans for cooling, with adjustable conveyor speed and fan rotation to ensure the tea is fully cooled before reaching the refining workshop's feeding port, meeting the refining requirements. Intelligent adjustment of the feeding speed ensures sufficient quantity of tea enters the sieving process, meeting the requirements of refining production. The entire process from fresh leaves to finished tea can be completed within 24 hours. This integrated intelligent processing of Qimen Gongfu black tea's initial and refining stages increases production efficiency by over 35%, reduces the number of batches of tea entering and leaving the warehouse by at least 10 per day, alleviates storage pressure, and allows for finished product processing within 24 hours, enabling direct packaging and market entry, effectively enhancing market competitiveness.

[0049] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A system for integrated processing of Keemun black tea, characterized in that it comprises: It includes a primary processing workshop and a refining workshop. The primary processing workshop is equipped with a storage unit, withering unit, rolling unit, fermentation equipment, first drying equipment, cooling equipment, and second drying equipment, arranged in sequence according to the primary processing process. The refining workshop is equipped with an air separator, a rotary screen unit, a flat circular screen unit, an air separator unit, a color sorter unit, a third drying equipment, a uniform stacking unit, and weighing and feeding equipment, arranged in sequence according to the refining process. The primary processing workshop and the refining workshop are connected by a primary and refining connecting device. The input end of the primary and refining connecting device is connected to the output end of the second drying equipment, and the output end of the primary and refining connecting device is connected to the input end of the air separator, which is used to directly transport the raw tea after primary processing to the refining workshop for further processing. The primary and refining connection equipment includes a primary vertical conveyor connected to the end of the second drying equipment, a cooling transmission system connected to the end of the primary vertical conveyor, and an electronic weighing flat conveyor located at the end of the cooling transmission system. The primary and secondary refining connection equipment is provided with a leaf-splitting rotating cage (2). A through groove (21) is provided on the circumferential surface of the leaf-splitting rotating cage (2). A blade shaft (3) is installed in the inner cavity of the leaf-splitting rotating cage (2). The blade shaft (3) is eccentrically arranged with the leaf-splitting rotating cage (2). A blade (32) is rotatably connected to the blade shaft (3). The blade (32) can slide out or slide in the through groove (21). The blade shaft (3) is a hollow structure, and one end of the blade shaft (3) is fixedly connected to the support on the top of the workshop. One end of the blade shaft (3) is connected to a fan. Micro-flow holes are opened on the circumference of the blade rotating cage (2). A brush plate is provided on the inner wall of the through groove (21) for cleaning the blades. The circumferential surface of the leaf-shaped rotating cage (2) is provided with an upper support surface (22) and a lower support surface (221). A spring is connected between the upper support surface (22) and the lower support surface (221). When the blade (32) slides out or slides in, it causes the upper support surface (22) to vibrate by squeezing the flexible protrusion (224) provided on the inner wall of the through groove (21). The upper support surface (22) is connected to a side plate, which serves as the inner wall of the through groove (21). The side plate and the lower support surface (221) can slide against each other. The flexible protrusion (224) is provided on the side plate, and the blade (32) is also provided with flexible protrusions (300).

2. The system for integrated processing of Keemun black tea according to claim 1, characterized in that, The electronic weighing conveyor has two output ends. One output end is directly connected to the air separator, and the other output end is connected to the feeding port via a feeding gooseneck conveyor. The feeding port is located on the ground, and a tea storage cavity is dug out of the ground. The feeding gooseneck conveyor has a bidirectional conveying function, which can both input the tea output from the electronic weighing conveyor into the tea storage cavity and transport the tea in the tea storage cavity to the air separator.

3. The system for integrated processing of Keemun black tea according to claim 2, characterized in that: The primary and refining connection equipment is a closed structure that extends horizontally from the top of the primary workshop to the top of the refining workshop.

4. The system for integrated processing of Keemun black tea according to claim 3, characterized in that, The cooling transmission system consists of a flat conveyor, with a cooling air duct opened on the sealed shell of the flat conveyor. A variable frequency fan is installed inside the cooling air duct to remove the heat from the tea leaves on the flat conveyor.

5. The system for integrated processing of Keemun black tea according to claim 1, wherein, The leaf-splitting drum (2) is driven to rotate by the motor (1). The blades (32) correspond one-to-one with the through slots (21). When the leaf-splitting drum (2) rotates, some of the blades (32) are located in the through slots (21), which will push the blades (32) to rotate. Since the rotation center of the blades (32) is eccentric to the rotation center of the leaf-splitting drum (2), the blades (32) slide out or slide in the through slots (21) when rotating. There are multiple sets of blades (32), so that two blades (32) extend out of the through slots (21) at the same time. The tea leaves are fed between the extended blades (32), and the rotation carries the tea leaves between the two blades (32) to the flat conveyor on one side.

6. The system for integrated processing of Keemun black tea according to claim 5, characterized in that, The blades (32) are arranged in three groups, each group consisting of two fixedly connected blades. Each group of blades is individually connected to the blade shaft (3) via a rotating shaft (31).

7. A processing technology using the Keemun black tea primary and refining integrated processing system according to claim 1, characterized in that, The process includes the following steps: withering, rolling, fermentation, drying, cooling and conveying, sieving, cutting, winnowing, color sorting, blending, uniform piling, and packing. Among these steps, a cooling and conveying system is used to directly transport the raw tea leaves to the refining workshop for refining. By adjusting the conveying speed and fan speed, the raw tea leaves are completely cooled during the conveying process to meet the refining requirements.

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