Tea leaf drying device

Abstract

The utility model discloses a tea leaf drying device, and relates to the technical field of drying equipment. The heating cylinder is rotationally connected to the bracket; the storage cylinder is connected into the heating cylinder, and a heating cavity is formed between the heating cylinder and the storage cylinder; the drying cylinder is connected into the storage cylinder, a plurality of screen holes are formed in the side wall of the drying cylinder, and a containing cavity is formed between the drying cylinder and the storage cylinder; the driving device is connected to the support and used for driving the heating cylinder to rotate, tea leaves needing to be dried are added into the drying cylinder, and in the rotating process, fine disintegrating slag in the tea leaves enters the containing cavity between the drying cylinder and the containing cylinder through the screen holes, so that the tea leaves in the drying cylinder reach a certain grade during drying, and the tea leaves are dried more conveniently. Manual screening after drying is not needed, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a tea drying device. Background Technology

[0002] Drying is a crucial step in tea production. Proper drying helps maintain the tea's appearance, taste, and aroma, and extends its shelf life. Using a tea dryer improves production efficiency and ensures consistent quality and flavor. A tea dryer is a device used to dry tea leaves. Its main function is to remove moisture from the tea leaves to ensure preservation and quality. Tea dryers typically use hot air or hot plates to quickly evaporate the moisture.

[0003] For example, in the prior art, application number 202323136879.6, entitled "A Tea Drying Device," describes a device comprising a tea drying shell supported by support legs, and a tea drying conveyor mesh located within the shell's inner cavity, moving at a uniform speed from left to right. A drying unit is located at the lower end of the shell's inner cavity to heat the mesh. When the mesh is activated, it moves uniformly from left to right within the shell, simultaneously pushing the drying unit into the shell. The tea leaves to be dried are fed into the mesh through the inlet, where the drying unit performs the drying operation. The dried tea leaves are then collected through the outlet. This design facilitates maintenance of the electrically heated drying unit.

[0004] However, some tea leaves will be mixed in during the picking process, affecting the grade of the tea. After the tea is dried, the above-mentioned equipment needs to be manually sorted, which increases the labor intensity of the staff. Utility Model Content

[0005] To address the problems of existing technologies, this utility model provides a tea drying device, comprising:

[0006] support;

[0007] The heating cylinder is rotatably connected to the bracket.

[0008] A storage tube is connected inside the heating tube, and a heating cavity is formed between the heating tube and the storage tube.

[0009] A drying cylinder is connected inside the storage cylinder, and a plurality of sieve holes are provided on the side wall of the drying cylinder, forming a receiving cavity between the drying cylinder and the storage cylinder;

[0010] A drive unit, connected to the bracket, is used to drive the heating cylinder to rotate.

[0011] Furthermore, the heating cylinder, the storage cylinder, and the drying cylinder are all double-conical.

[0012] Furthermore, a first valve is provided at one end of the drying cylinder.

[0013] Furthermore, a second valve is provided at one end of the storage tube.

[0014] Furthermore, the storage cylinder has several vent holes at the end furthest from the second valve.

[0015] Furthermore, the support includes:

[0016] Base plate;

[0017] Two vertical plates are connected vertically to the top of the base plate;

[0018] The heating cylinder is rotatably connected between the two vertical plates;

[0019] The drive device is connected to one of the vertical plates and is used to drive the heating cylinder to rotate between the two vertical plates.

[0020] Furthermore, a first rotating shaft and a second rotating shaft are respectively provided on opposite sides of the middle of the heating cylinder;

[0021] One end of the first rotating shaft is fixedly connected to one of the vertical plates, and the other end of the first rotating shaft is rotatably connected to the side wall of the heating cylinder;

[0022] One end of the second rotating shaft is rotatably connected to another vertical plate, and the other end of the second rotating shaft is fixedly connected to the side wall of the heating cylinder.

[0023] Furthermore, an air inlet pipe is connected through the first rotating shaft, and an air outlet pipe is rotatably connected through the second rotating shaft.

[0024] Furthermore, the driving device includes:

[0025] A motor is connected to the vertical plate corresponding to the second rotating shaft;

[0026] The first gear is connected to the output end of the motor;

[0027] The second gear is sleeved and fixed on the side wall of the second rotating shaft, and the second gear meshes with the first gear.

[0028] The beneficial effects of the technical solution provided by this utility model are as follows: In this utility model, a receiving cylinder is connected inside a heating cylinder, and a drying cylinder is connected inside the receiving cylinder. A sieve hole is opened on the drying cylinder, and a receiving cavity is formed between the drying cylinder and the receiving cylinder. A heating cavity is formed between the heating cylinder and the receiving cylinder. Tea leaves to be dried are added into the drying cylinder, and a driving device drives the heating cylinder to rotate. During the rotation, the fine fragments in the tea leaves enter the receiving cavity between the drying cylinder and the receiving cylinder through the sieve hole, so that the tea leaves in the drying cylinder reach a certain grade during drying, eliminating the need for manual screening after drying and reducing the labor intensity of workers. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a tea drying device provided by this utility model;

[0030] Figure 2 This is a cross-sectional schematic diagram of a tea drying device provided by this utility model;

[0031] Figure 3 This is a schematic diagram of the internal structure of a tea drying device provided by this utility model;

[0032] Figure 4 This is a schematic diagram of the structure of a drying cylinder provided by this utility model.

[0033] Reference numerals in the attached drawings: 1-Heating cylinder; 2-Collection cylinder; 3-Heating chamber; 4-Drying cylinder; 5-Sieve holes; 6-Collection chamber; 7-First valve; 8-Second valve; 9-Exhaust port; 10-Base plate; 11-Vertical plate; 12-First rotating shaft; 13-Second rotating shaft; 14-Inlet pipe; 15-Outlet pipe; 16-Motor; 17-First gear; 18-Second gear; 19-First side plate; 20-Second side plate. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "bottom," "top," "left," and "right" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] It should also be noted that, in this embodiment, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] See Figures 1-4 A tea drying device includes: a support frame, a heating cylinder 1 rotatably connected to the support frame, a receiving cylinder 2 connected inside the heating cylinder 1, a gap between the heating cylinder 1 and the receiving cylinder 2 forming a heating cavity 3, a drying cylinder 4 connected inside the receiving cylinder 2, a gap between the drying cylinder 4 and the receiving cylinder 2 forming a receiving cavity 6, and a plurality of sieve holes 5 are provided on the side wall of the drying cylinder 4; a driving device is also connected to the support frame for driving the heating cylinder 1, the receiving cylinder 2 and the drying cylinder 4 to rotate as a whole.

[0039] In use, the tea leaves to be dried are added to the drying cylinder 4. A heating medium can be added to the heating chamber 3 between the heating cylinder 1 and the storage cylinder 2. The heating medium transfers heat to the drying cylinder 4 to dry the tea leaves. During the drying process, the drive unit drives the heating cylinder 1, the storage cylinder 2, and the drying cylinder 4 to rotate on the support, which speeds up the drying process. During the rotation, the fine fragments in the tea leaves enter the receiving chamber 6 between the drying cylinder 4 and the storage cylinder 2 through the sieve holes 5. This allows the tea leaves in the drying cylinder 4 to reach a certain grade during drying, eliminating the need for manual screening after drying and reducing the labor intensity of the workers. In addition, the aperture of the sieve holes 5 can be determined by the particle size of the fragments to be screened out.

[0040] Furthermore, the heating cylinder 1, the receiving cylinder 2, and the drying cylinder 4 are all double-conical, with a cylindrical middle section and conical ends. The double-conical shape helps to evenly distribute the tea leaves during the drying process. The heating cylinder 1, the receiving cylinder 2, and the drying cylinder 4 are connected to a first side plate 19 and a second side plate 20 at their respective ends. A first valve 7 is provided on the first side plate 19 at the position corresponding to the drying cylinder 4. The first valve 7 can be a manual butterfly valve, used to add the tea leaves to be dried into the drying cylinder 4 and to pour out the tea leaves after drying. An annular opening is provided on the second side plate 20 at the position corresponding to the receiving cavity 6. A second valve 8 is connected to the annular opening. The second valve 8 can be an annular plate, which is detachably connected to the annular opening by bolts, and is used to pour out the screened residue.

[0041] Furthermore, a number of exhaust holes 9 are provided on the first side plate 19 at the position corresponding to the receiving cavity 6, and a number of exhaust holes 9 can also be provided on the annular plate. A number of exhaust holes 9 can also be provided on the second side plate 20 at the position corresponding to the drying cylinder 4. The gas evaporated after heating can be discharged through the exhaust holes 9. In addition, a filter screen can be provided at the exhaust holes 9.

[0042] Furthermore, the support includes: a base plate 10, two vertical plates 11 are vertically fixedly connected to the top of the base plate 10, a first rotating shaft 12 is fixedly connected to one of the vertical plates 11, and the other end of the first rotating shaft 12 is rotatably connected to the side wall of the heating cylinder 1 through a bearing; a second rotating shaft 13 is rotatably connected to the other vertical plate 11 through a bearing, and the other end of the second rotating shaft 13 is fixedly connected to the side wall of the heating cylinder 1.

[0043] An air inlet pipe 14 is connected through the first rotating shaft 12 and is rotatably connected to the side wall of the heating cylinder 1. An air outlet pipe 15 is rotatably connected through the second rotating shaft 13 and is rotatably connected through the second rotating shaft 13 via a bearing. The second rotating shaft 13 is rotatably connected to the side wall of the heating cylinder 1.

[0044] In use, the air inlet pipe 14 is connected to the hot air blower. The hot air blower is set to the required temperature and air volume. The hot air generated by the hot air blower enters the heating chamber 3 through the air inlet pipe 14. The heat in the hot air is transferred to the inside of the receiving cylinder 2 and the drying cylinder 4 to dry the tea leaves. The air outlet pipe 15 is connected to the heat exchanger and guides the discharged hot air to the heat exchanger. The heat exchanger transfers the heat in the hot air to the cold air entering the system through the heat exchange process, thereby realizing heat recovery. The recovered hot air can be sent back to the heating chamber 3.

[0045] Alternatively, the heating medium can also be a liquid.

[0046] Furthermore, the driving device includes: a motor 16, which is fixedly connected to a vertical plate 11 connected to a second rotating shaft 13. A first gear 17 is fixedly connected to the output end of the motor 16. A second gear 18 is sleeved on the second rotating shaft 13. The second rotating shaft 13 and the second gear 18 are fixedly connected. The second gear 18 meshes with the first gear 17. The motor 16 drives the first gear 17 to rotate, the first gear 17 drives the second gear 18 to rotate, and the second gear 18 drives the second rotating shaft 13 to rotate. The second rotating shaft 13 drives the heating cylinder 1 to rotate. It should be noted that the turning speed should be slow, so as to stir the tea leaves while preventing damage to the tea leaves and preventing the residue in the receiving cavity 6 from flowing back into the drying cylinder 4.

[0047] After drying, place the first storage box on the base plate 10, drive the second valve 8 downwards using the drive device, remove the bolts, open the annular plate, and pour the residue in the receiving cavity 6 into the first storage box; then place the second storage box on top, drive the first valve 7 downwards using the drive device, open the first valve, and pour the dried tea leaves into the second storage box.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tea leaf drying apparatus, characterized by comprising: The utility model relates to a kind of drying device, including: Support; Heating cylinder (1), rotationally connected in the support; Storage cylinder (2), connected in the heating cylinder (1), and the heating cylinder (1) and the storage cylinder (2) form heating cavity (3) between; Drying cylinder (4), connected in the storage cylinder (2), and a plurality of sieve holes (5) are set on the side wall of the drying cylinder (4), and the drying cylinder (4) and the storage cylinder (2) form containing cavity (6) between; Driving device, connected in the support, for driving the heating cylinder (1) to rotate.

2. The tea leaf drying apparatus according to claim 1, wherein The heating cylinder (1), the storage cylinder (2) and the drying cylinder (4) are all double-cone type.

3. The tea leaf drying apparatus according to claim 1, wherein One end of the drying cylinder (4) is provided with a first valve (7).

4. The tea leaf drying apparatus according to claim 1, wherein One end of the storage cylinder (2) is provided with a second valve (8).

5. The tea leaf drying apparatus as claimed in claim 4, wherein A plurality of exhaust holes (9) are formed in the end of the storage cylinder (2) away from the second valve (8).

6. The tea leaf drying apparatus as claimed in claim 1, wherein The support includes: Bottom plate (10); Two vertical plates (11) are vertically connected to the top of the bottom plate (10); The heating cylinder (1) is rotationally connected between the two vertical plates (11); The driving device is connected to one of the vertical plates (11) for driving the heating cylinder (1) to rotate between the two vertical plates (11).

7. The tea leaf drying apparatus as claimed in claim 6, wherein The middle of the heating cylinder (1) is provided with a first rotating shaft (12) and a second rotating shaft (13) on opposite sides, respectively; One end of the first rotating shaft (12) is fixedly connected to one of the vertical plates (11), and the other end of the first rotating shaft (12) is rotationally connected to the side wall of the heating cylinder (1); One end of the second rotating shaft (13) is rotationally connected to the other vertical plate (11), and the other end of the second rotating shaft (13) is fixedly connected to the side wall of the heating cylinder (1).

8. The tea leaf drying apparatus as claimed in claim 7, wherein The first rotating shaft (12) is connected with an air inlet pipe (14) therethrough, and the second rotating shaft (13) is connected with an air outlet pipe (15) rotationally therethrough.

9. The tea leaf drying apparatus as claimed in claim 7, wherein The driving device includes: Motor (16), connected to the vertical plate (11) corresponding to the second rotating shaft (13); First gear (17), connected to the output end of the motor (16); Second gear (18), fixedly sleeved on the side wall of the second rotating shaft (13), and the second gear (18) is engaged with the first gear (17).

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