Tea blank re-firing treatment equipment for osmanthus fragrans black tea production

Abstract

The utility model relates to the field of tea production equipment, concretely relates to a tea blank rekindling treatment equipment for osmanthus fragrans black tea production, including heating kiln, chain plate type conveyer and a plurality of discharging units, chain plate type conveyer sets up in heating kiln and the both ends of chain plate type conveyer extend to the outside of heating kiln from the entrance and exit of the both ends of heating kiln, and the discharging unit is evenly arranged at the side of chain plate type conveyer, the discharging unit includes the material holding tray, the inside rotation of material holding tray is provided with the rotating plate, and the both ends of rotating plate are coaxially provided with the support shaft, and the support shaft is rotatably connected with material holding tray and the end portion of support shaft is fixedly installed with the friction wheel, and the heating kiln of the outside middle part of chain plate type conveyer is provided with the friction plate parallel with the conveying direction of chain plate type conveyer. The utility model has the advantages of being capable of turning tea blank, making tea blank heat evenly and containing water evenly.

Description

Technical Field

[0001] This utility model relates to the field of tea production equipment, specifically to a tea blank re-firing treatment device for the production of osmanthus black tea. Background Technology

[0002] In the production of Osmanthus black tea, the tea leaves undergo re-firing during processing. This is primarily to control the moisture content and temperature of the tea leaves, a crucial step to ensure the success of the subsequent scenting process. It offers the following advantages: 1. Re-firing effectively reduces the moisture content of the tea leaves, achieving a suitable dryness for scenting (typically controlled between 4% and 5.5%). The drier the tea leaves, the stronger their ability to absorb floral aromas, allowing for better absorption of the osmanthus fragrance. 2. The porous structure of the dried tea leaves allows for more efficient absorption of the aromatic substances released by the osmanthus. 3. Re-firing also removes impurities from the tea leaves, stabilizing the original quality of the tea and providing a pure tea base for scenting. During re-firing, uniform heating of the tea leaves is a decisive factor in determining the quality of the tea. During the initial drying process, the lower parts of the tea leaves often have higher moisture content. Therefore, it is necessary to design a re-firing device for Osmanthus black tea production that can turn the tea leaves, ensuring uniform heating and moisture content. Summary of the Invention

[0003] The purpose of this utility model is to provide a tea blank re-firing treatment device for the production of osmanthus black tea, which has the advantages of being able to turn the tea blank, making the tea blank heat evenly and the moisture content evenly.

[0004] The technical solution adopted is as follows:

[0005] A tea blank re-firing treatment device for osmanthus black tea production includes a heating kiln, a chain conveyor belt, and several feeding units. The chain conveyor belt is installed inside the heating kiln, with both ends extending from the inlets and outlets at both ends of the heating kiln to the outside of the kiln. The feeding units are evenly arranged on the sides of the chain conveyor belt. Each feeding unit includes a material tray, with a rotating plate rotatably installed inside the tray. Both ends of the rotating plate are coaxially mounted with support shafts, which are rotatably connected to the material tray. Friction wheels are fixedly installed at the ends of the support shafts. Friction plates parallel to the conveying direction of the chain conveyor belt are installed inside the heating kiln on the outer side of the middle of the chain conveyor belt.

[0006] Preferably, inclined plates are provided at both the front and rear ends of the friction plate.

[0007] Preferably, the material tray below the rotating plate is provided with several grooves, and each groove is provided with a tension spring connected to the rotating plate.

[0008] Preferably, the length of the friction plate is one-quarter of the outer circumference length of the friction wheel.

[0009] Compared to existing technologies, the advantages are:

[0010] This invention places the tea blanks onto a rotating plate. The feeding unit moves with the chain conveyor belt. When the feeding unit moves to the middle of the heating kiln with the chain conveyor belt, the friction wheel contacts the friction plate and rotates, thereby turning the rotating plate 90 degrees and spreading the tea leaves on the rotating plate onto the other end of the feeding tray. This achieves the turning of the tea blanks, causing the lower tea blanks to turn to the top, thus achieving the advantages of uniform heating and uniform moisture content of the tea blanks. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a tea blank re-firing treatment device for the production of osmanthus black tea according to this utility model.

[0012] Figure 2 yes Figure 1 A schematic diagram of the structure at point A in the middle.

[0013] In the diagram: 1. Heating kiln; 2. Chain conveyor belt; 3. Material tray; 4. Rotating plate; 5. Support shaft; 6. Friction wheel; 7. Friction plate; 8. Inclined plate; 9. Groove; 10. Tension spring. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 2 As shown:

[0015] Example 1: A tea blank re-firing treatment device for osmanthus black tea production, including a heating kiln 1, a chain conveyor belt 2 and several feeding units. The chain conveyor belt 2 is set inside the heating kiln 1 and both ends of the chain conveyor belt 2 extend from the inlet and outlet of the heating kiln 1 to the outside of the heating kiln 1. The heating kiln 1 is equipped with a heating unit and an exhaust unit. The heating unit re-fires and dries the tea blanks entering the heating kiln 1, and the exhaust unit discharges the humid gas.

[0016] The feeding units are evenly arranged on the side of the chain conveyor belt 2. The feeding units move with the chain conveyor belt 2. The feeding units include a material tray 3. A rotating plate 4 is rotatably arranged inside the material tray 3. The rotating plate 4 occupies half of the space of the material tray 3. Support shafts 5 are coaxially arranged at both ends of the rotating plate 4. The support shafts 5 are rotatably connected to the material tray 3, and friction wheels 6 are fixedly installed at the ends of the support shafts 5. The friction wheels 6 extend outward to the outside of the chain conveyor belt 2.

[0017] Inside the heating kiln 1 on the outer side of the middle of the chain conveyor belt 2, there is a friction plate 7 parallel to the conveying direction of the chain conveyor belt 2. Before the chain conveyor belt 2 enters the heating kiln 1, the tea blanks are placed on the rotating plate 4. The feeding unit moves with the chain conveyor belt 2. When the feeding unit moves with the chain conveyor belt 2 to the middle of the heating kiln 1, the friction wheel 6 contacts the friction plate 7 and rotates, thereby turning the rotating plate 4 90 degrees and spreading the tea on the rotating plate 4 to the other end of the feeding tray 3, thereby turning the tea blanks so that the tea blanks at the bottom are turned to the top, so as to achieve uniform heating of the tea blanks.

[0018] Example 2: A tea blank re-firing treatment device for osmanthus black tea production, including a heating kiln 1, a chain conveyor belt 2 and several feeding units. The chain conveyor belt 2 is installed inside the heating kiln 1 and its two ends extend from the inlet and outlet of the heating kiln 1 to the outside of the heating kiln 1. The heating kiln 1 is equipped with a heating unit and an exhaust unit. The heating unit re-fires and dries the tea blanks entering the heating kiln 1, and the exhaust unit discharges the humid gas.

[0019] The feeding units are evenly arranged on the side of the chain conveyor belt 2. The feeding units move with the chain conveyor belt 2. The feeding units include a material tray 3. A rotating plate 4 is rotatably arranged inside the material tray 3. The rotating plate 4 occupies half of the space of the material tray 3. Support shafts 5 are coaxially arranged at both ends of the rotating plate 4. The support shafts 5 are rotatably connected to the material tray 3, and friction wheels 6 are fixedly installed at the ends of the support shafts 5. The friction wheels 6 extend outward to the outside of the chain conveyor belt 2.

[0020] A friction plate 7 parallel to the conveying direction of the chain conveyor belt 2 is installed in the heating kiln 1 on the outer side of the middle section of the chain conveyor belt 2. The length of the friction plate 7 is one-quarter of the outer circumference length of the friction wheel 6. The length of the inclined plate 8 is used to drive the rotating plate 4 to rotate 90 degrees.

[0021] Inclined plates 8 are provided at both the front and rear ends of the friction plate 7. The inclined plates 8 facilitate the guidance of the friction wheel 6. Several grooves 9 are provided in the material tray 3 below the rotating plate 4. Each groove 9 is provided with a tension spring 10 connected to the rotating plate 4. When the friction wheel 6 disengages from the friction plate 7, the tension spring 10 is used to pull the rotating plate 4 to reset.

[0022] The working principle is as follows:

[0023] Before the chain conveyor belt 2 enters the heating kiln 1, the tea blanks are placed on the rotating plate 4. The feeding unit moves with the chain conveyor belt 2. When the feeding unit moves with the chain conveyor belt 2 to the middle of the heating kiln 1, the friction wheel 6 contacts the friction plate 7 and rotates, thereby turning the rotating plate 4 90 degrees so that the tea on the rotating plate 4 is spread on the other end of the feeding tray 3. When the friction wheel 6 disengages from the friction plate 7, the tension spring 10 is used to pull the rotating plate 4 back to its original position. In this process, the tea blanks are turned over, so that the tea blanks at the bottom are turned over to the top, so that the tea blanks are heated evenly.

[0024] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A tea blank re-firing treatment device for the production of osmanthus black tea, comprising a heating kiln (1), a chain conveyor belt (2), and several feeding units, characterized in that: The chain conveyor belt (2) is installed inside the heating kiln (1), and both ends of the chain conveyor belt (2) extend from the inlet and outlet of the heating kiln (1) to the outside of the heating kiln (1). The feeding unit is evenly arranged on the side of the chain conveyor belt (2). The feeding unit includes a feeding tray (3). A rotating plate (4) is rotatably arranged inside the feeding tray (3). Both ends of the rotating plate (4) are coaxially provided with a support shaft (5). The support shaft (5) is rotatably connected to the feeding tray (3), and a friction wheel (6) is fixedly installed at the end of the support shaft (5). A friction plate (7) parallel to the conveying direction of the chain conveyor belt (2) is arranged inside the heating kiln (1) on the outer side of the middle of the chain conveyor belt (2).

2. The tea blank re-firing treatment equipment for osmanthus black tea production as described in claim 1, characterized in that: Inclined plates (8) are provided at both the front and rear ends of the friction plate (7).

3. The tea blank re-firing treatment equipment for osmanthus black tea production as described in claim 1, characterized in that: The material tray (3) below the rotating plate (4) is provided with several grooves (9), and each groove (9) is provided with a tension spring (10) connected to the rotating plate (4).

4. The tea blank re-firing treatment equipment for producing osmanthus black tea as described in claim 1, characterized in that: The length of the friction plate (7) is one-quarter of the outer circumference length of the friction wheel (6).

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