A Dendrobium officinale tea drying equipment

Abstract

This invention belongs to the technical field of tea drying machines, and particularly relates to a Dendrobium officinale tea drying device, comprising: a drying cloth drying chamber and a drying chamber connected to each other inside the main unit housing; a drying cloth drying structure is provided inside the drying cloth drying chamber, and the same drying cloth is wrapped around the drying cloth drying structure and the inner side of the drying chamber; a high-temperature drying blower structure is provided at one end of the drying cloth drying chamber, and a coarse filter screen is fixedly connected to the other end of the drying cloth drying chamber, with the high-temperature drying blower structure corresponding to the coarse filter screen; a low-temperature drying blower structure is provided at one end of the drying chamber, with the air inlet of the low-temperature drying blower structure located outside the main unit housing and the air outlet of the low-temperature drying blower structure located inside the drying chamber; a filter cover structure is provided at the end of the drying chamber away from the low-temperature drying blower structure, and the filter cover structure is hinged to the main unit housing; a drying cloth transmission structure is provided between the drying chamber and the drying cloth drying chamber, and the drying cloth transmission structure is connected to the drying cloth transmission.

Description

Technical Field

[0001] This invention belongs to the technical field of tea drying machines, and particularly relates to a drying device for Dendrobium officinale tea. Background Technology

[0002] Dendrobium, also known as Immortal Orchid, Immortal Grass, Resurrection Grass, Purple Fairy Plant, Hanging Orchid, Forest Orchid, Forbidden Life, Golden Hairpin Flower, etc., has an erect, fleshy, thick, slightly flattened cylindrical stem, 10-60 cm long and up to 1.3 cm in diameter. It is a medicinal plant, with a sweet, bland, and slightly salty taste, and is cold in nature. It enters the stomach, kidney, and lung meridians. It benefits the stomach and promotes the production of body fluids, nourishes yin and clears heat. It is used for yin deficiency and fluid depletion, dry mouth and thirst, poor appetite and dry retching, post-illness weakness and fever, and blurred vision. Dendrobium flowers are elegant, delicate, and lovely, with bright colors and a fragrant aroma, and are considered one of the "Four Great Ornamental Flowers". Harvesting: Harvest in late spring before sprouting. Cut off stems older than three years, leaving the tender stems to continue growing. Processing: Due to differences in varieties and commercial medicinal materials, there are different processing methods. Two methods are described below: First, wash the harvested stems thoroughly to remove mud and sand, remove leaves and fibrous roots, separate individual stems, and blanch them in 85℃ hot water for 1-2 minutes. Then, remove them and spread them out on bamboo mats or a cement surface to sun-dry until they are about 50% dry. Next, rub off the sheath membrane by hand, and continue sun-drying, turning them frequently until completely dry. Alternatively, blanch the washed Dendrobium in boiling water for 5 minutes, remove and air-dry, then place them on bamboo mats to sun-dry, turning them 2-3 times a day. When they become soft, rub them while sun-drying, repeating this process several times until all remaining leaf sheaths are removed, then sun-dry until completely dry. To meet the needs of industrial production, drying machines are currently commonly used for drying Dendrobium.

[0003] In existing dryers, high-temperature blowing is often used for hot air drying. However, in order to pursue efficiency, high-temperature hot air is required, which can damage the aroma and nutrients of Dendrobium tea. Therefore, there is an urgent need for a device that can achieve good drying effect and efficiency while reducing the drying temperature to minimize the loss of aroma and nutrients during drying. Summary of the Invention

[0004] The purpose of this invention is to provide a Dendrobium officinale tea drying device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A Dendrobium officinale tea drying device includes: a main unit housing, wherein the main unit housing is provided with a drying cloth drying chamber and a drying chamber that are interconnected;

[0007] The drying cloth drying chamber is provided with a drying cloth drying structure inside. The drying cloth drying structure and the inner side of the drying chamber are wrapped with the same drying cloth. One end of the drying cloth drying chamber is provided with a high temperature drying blower structure. The other end of the drying cloth drying chamber is fixedly connected to a coarse filter screen. The high temperature drying blower structure corresponds to the coarse filter screen.

[0008] The drying chamber is cylindrical, with its axis set horizontally. One end of the drying chamber is provided with a low-temperature drying blower structure. The air inlet of the low-temperature drying blower structure is located outside the main unit housing, and the air outlet of the low-temperature drying blower structure is located inside the drying chamber. The end of the drying chamber away from the low-temperature drying blower structure is provided with a filter cover structure, which is hinged to the main unit housing.

[0009] A drying cloth transmission structure is provided between the drying chamber and the drying cloth drying chamber, and the drying cloth transmission structure is connected to the drying cloth transmission.

[0010] Preferably, the drying cloth drying structure includes two staggered stretching roller groups and at least one guide roller. The stretching roller group includes several stretching rollers, and the axes of the stretching rollers and guide rollers are horizontally arranged. The stretching rollers and guide rollers are rotatably connected to the inner side of the main unit housing. The drying cloth is wound around several stretching rollers, and the guide roller is used to guide the drying cloth back into the drying chamber.

[0011] Preferably, the high-temperature drying blower structure includes a hot air shell, which is fixedly connected to the main unit shell. A blower cavity is provided inside the hot air shell. The air inlet of the blower cavity is connected to the air outlet of a first blower. The first blower is fixedly connected to the hot air shell. The air outlet of the blower cavity has a plurality of narrow openings, which are arranged at equal intervals and correspond to the drying cloth. An electric heating wire is fixedly connected inside the blower cavity.

[0012] Preferably, two symmetrically arranged mounting rings are fixedly connected to the inner side of the drying chamber. The mounting rings are provided with mounting grooves, and the edge of the drying cloth is provided with a flexible limiting strip. The flexible limiting strip is slidably connected to the inner side of the mounting groove.

[0013] Preferably, the mounting ring has an inclined surface on the inner side of the side closest to the drying cloth.

[0014] Preferably, an anti-snagging scraper is fixedly connected between the two mounting rings, and the anti-snagging scraper is positioned in contact with the drying cloth.

[0015] Preferably, the low-temperature drying blower structure includes a heating chamber, which is fixedly connected to the main unit housing. The air inlet of the heating chamber is connected to the air outlet of a second blower, which is fixedly connected to the heating chamber. An air guide pipe is axially connected to the air outlet of the heating chamber. The air guide pipe is located inside the drying chamber and is coaxially arranged with the drying chamber. Several air outlets are provided around the air guide pipe.

[0016] Preferably, the filter cap structure includes a screw cap, one end of which is hinged to the main unit housing, and a fine filter screen is fixedly connected to the inner side of the screw cap.

[0017] Preferably, the drying cloth transmission structure includes a driving roller, an auxiliary roller, and a driven roller. The driving roller, auxiliary roller, and driven roller are rotatably connected to the inner side of the main machine housing. The drying cloth is frictionally connected to the driving roller and the auxiliary roller.

[0018] One end of the active roller is shaft-connected to the output shaft of the drive motor, which is fixedly connected to the main housing. The other end of the active roller is shaft-connected to a first gear. One end of the auxiliary roller is shaft-connected to a second gear, which meshes with the first gear. One end of the driven roller is shaft-connected to a third gear, which meshes with the second gear.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] In this invention, a drying cloth structure is provided to dry and heat the cloth, enabling it to dry the Dendrobium tea leaves and absorb moisture. The drying chamber and cloth, with their continuous movement, tumble the Dendrobium tea leaves, achieving a comprehensive and effective drying effect. Low-temperature and high-temperature drying structures are used to heat different areas at varying temperatures. The low-temperature drying structure reduces aroma and nutrient loss, while the high-temperature drying structure quickly dries and heats the cloth, improving the drying efficiency of the Dendrobium tea leaves. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a front view of the drying structure of the drying cloth;

[0025] Figure 4 This is a cross-sectional view of the high-temperature drying blower structure;

[0026] Figure 5 This is a schematic diagram of the mounting ring structure;

[0027] Figure 6 This is a partial cross-sectional view of the mounting ring;

[0028] Figure 7 This is a schematic diagram of the internal structure of the other side of the present invention;

[0029] Figure 8 A schematic diagram of the structure of the scraper to prevent material from sticking;

[0030] Figure 9 This is a schematic diagram of the low-temperature drying blower structure;

[0031] Figure 10 This is a schematic diagram of the drying cloth transmission structure.

[0032] The components include: 1. Main unit casing; 2. Drying chamber; 3. Drying cloth drying structure; 4. Drying cloth; 5. Drying cloth transmission structure; 6. High-temperature drying blower structure; 7. Low-temperature drying blower structure; 8. Filter cover structure; 9. Anti-clogging scraper; 10. Coarse filter screen; 201. Mounting ring; 202. Mounting groove; 203. Inclined surface; 301. Tension roller; 302. Guide roller; 401. Flexible limiting strip; 501. Drive roller. 502, Auxiliary roller; 503, Driven roller; 504, First gear; 505, Second gear; 506, Third gear; 507, Drive motor; 601, First blower; 602, Hot air casing; 603, Blower cavity; 604, Narrow opening; 605, Heating wire; 701, Second blower; 702, Heating chamber; 703, Air duct; 704, Air outlet; 801, Screw cap; 802, Fine filter screen. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figures 1 to 10 The present invention discloses a Dendrobium tea drying device, comprising: a main body shell 1, and a drying cloth drying chamber and a drying chamber 2 that are interconnected inside the main body shell 1;

[0036] A drying cloth drying structure 3 is provided inside the drying chamber. The same drying cloth 4 is wrapped around the drying cloth drying structure 3 and the drying chamber 2. A high-temperature drying blower structure 6 is provided at one end of the drying chamber. A coarse filter 10 is fixedly connected to the other end of the drying chamber. The high-temperature drying blower structure 6 corresponds to the coarse filter 10.

[0037] The drying chamber 2 is cylindrical, and the axis of the drying chamber 2 is set horizontally. One end of the drying chamber 2 is provided with a low-temperature drying blower structure 7. The air inlet of the low-temperature drying blower structure 7 is located outside the main unit housing 1, and the air outlet of the low-temperature drying blower structure 7 is located inside the drying chamber 2. The end of the drying chamber 2 away from the low-temperature drying blower structure 7 is provided with a filter cover structure 8, which is hinged to the main unit housing 1.

[0038] A drying cloth transmission structure 5 is provided between the drying chamber 2 and the drying cloth drying chamber, and the drying cloth transmission structure 5 is connected to the drying cloth 4 in a transmission manner.

[0039] This invention utilizes a drying cloth structure 3 to dry and heat a drying cloth 4, enabling the cloth 4 to dry the Dendrobium tea leaves and absorb moisture. By using a drying chamber 2 and a drying cloth 4, the continuous movement of the cloth 4 within the drying chamber 2 causes the Dendrobium tea leaves to tumble, achieving a comprehensive and effective drying effect. The invention also incorporates a low-temperature drying blower structure 7 and a high-temperature drying blower structure 6, which heat different areas at varying temperatures. The low-temperature drying blower structure 7 achieves low-temperature drying, reducing the loss of aroma and nutrients in the Dendrobium tea leaves. The high-temperature drying blower structure 6 rapidly dries and heats the cloth 4, improving the drying efficiency of the Dendrobium tea leaves.

[0040] Further optimizing the scheme, the drying cloth drying structure 3 includes two staggered stretching roller groups and at least one guide roller 302. The stretching roller group includes several stretching rollers 301. The axes of the stretching rollers 301 and the guide rollers 302 are horizontally arranged. The stretching rollers 301 and the guide rollers 302 are rotatably connected to the inner side of the main unit housing 1. The drying cloth 4 is wound around several stretching rollers 301. The guide rollers 302 are used to guide the drying cloth 4 back into the drying chamber 2.

[0041] Further optimizing the scheme, the high-temperature drying blower structure 6 includes a hot air shell 602, which is fixedly connected to the main unit shell 1. A blower cavity 603 is provided inside the hot air shell 602. The air inlet of the blower cavity 603 is connected to the air outlet of the first blower 601. The first blower 601 is fixedly connected to the hot air shell 602. The air outlet of the blower cavity 603 is provided with a number of narrow openings 604, which are arranged at equal intervals and correspond to the drying cloth 4. An electric heating wire 605 is fixedly connected inside the blower cavity 603.

[0042] To further optimize the design, two symmetrically arranged mounting rings 201 are fixedly connected to the inner side of the drying chamber 2. The mounting rings 201 are provided with mounting grooves 202. The edge of the drying cloth 4 is provided with a flexible limiting strip 401, which is slidably connected to the inner side of the mounting groove 202.

[0043] To further optimize the design, the inner side of the mounting ring 201 near the drying cloth 4 is provided with an inclined surface 203.

[0044] The scheme is further optimized by fixing an anti-snagging scraper 9 between the two mounting rings 201, and the anti-snagging scraper 9 is set to contact the drying cloth 4.

[0045] Further optimization of the scheme: the low-temperature drying blower structure 7 includes a heating chamber 702, which is fixedly connected to the main unit housing 1. The air inlet of the heating chamber 702 is connected to the air outlet of the second blower 701, which is fixedly connected to the heating chamber 702. The air outlet of the heating chamber 702 is axially connected to a guide pipe 703, which is located inside the drying chamber 2 and is coaxially arranged with the drying chamber 2. Several air outlets 704 are provided around the guide pipe 703.

[0046] The scheme is further optimized. The filter cover structure 8 includes a screw cap 801. One end of the screw cap 801 is hinged to the main unit housing 1. A fine filter screen 802 is fixedly connected to the inside of the screw cap 801.

[0047] The scheme is further optimized. The drying cloth transmission structure 5 includes a drive roller 501, an auxiliary roller 502, and a driven roller 503. The drive roller 501, auxiliary roller 502, and driven roller 503 are rotatably connected to the inner side of the main machine housing 1. The drying cloth 4 is frictionally connected to the drive roller 501 and the auxiliary roller 502. The drying cloth 4 is also frictionally connected to the auxiliary roller 502 and the driven roller 503.

[0048] One end of the drive roller 501 is shaft-connected to the output shaft of the drive motor 507, which is fixedly connected to the main housing 1. The other end of the drive roller 501 is shaft-connected to the first gear 504. One end of the auxiliary roller 502 is shaft-connected to the second gear 505, which meshes with the first gear 504. One end of the driven roller 503 is shaft-connected to the third gear 506, which meshes with the second gear 505.

[0049] When using this invention:

[0050] First, open the screw cap 801 and place a certain number of Dendrobium officinale short branches onto the drying cloth 4 inside the drying chamber 2, then close the screw cap 801.

[0051] The first blower 601 in the high-temperature drying blower structure 6 is started. The air blown in by the first blower 601 is heated to 150° to 350° by the heating wire 605 in the hot air shell 602. Then, it is accelerated by the narrow opening 604 (the acceleration of the air adopts the Venturi effect) and blown over the drying cloth 4 between several stretching rollers 301, quickly drying and heating the drying cloth 4, so that the drying cloth 4 can be used to assist in the drying of Dendrobium tea leaves in the subsequent process.

[0052] The second blower 701 in the low-temperature drying blower structure 7 is started. The air blown in by the second blower 701 is heated to 60° to 85° by the heating chamber 702 (the heating chamber 702 is equipped with an electric heating wire for heating the air) and is sprayed out through the air outlet 704 on the air duct 703. The hot air sprayed out by the air outlet 704 is discharged through the fine filter screen 802 on the cap 801.

[0053] The drive motor 507 in the drying cloth transmission structure 5 is turned on, causing the drive motor 507 to drive the active roller 501 to rotate. The active roller 501 drives the auxiliary roller 502 and the driven roller 503 to move through the meshing relationship between the first gear 504, the second gear 505 and the third gear 506, thereby providing the power for the movement of the drying cloth 4, so that the drying cloth 4 can move along the multiple stretching rollers 301, the guide rollers 302 and the inside of the drying chamber 2.

[0054] Inside the drying chamber 2, the Dendrobium tea leaves tumble and tumble due to the continuous movement of the drying cloth 4. The drying cloth 4, after being dried by the high-temperature drying and blowing structure 6, has better water absorption capacity and can absorb the moisture in the Dendrobium tea leaves more quickly. At the same time, the drying cloth 4 has a certain temperature after being dried by the high-temperature drying and blowing structure 6, which can improve the drying effect of the Dendrobium tea leaves. Since the Dendrobium tea leaves are constantly tumbling, the contact time with the high-temperature drying cloth 4 is very short, so it will not cause significant damage to the aroma and nutrients of the Dendrobium tea leaves.

[0055] After drying the Dendrobium tea leaves, the drying cloth 4 returns to the high-temperature drying blower structure 6 for further drying and heating, thus achieving a cyclical operation.

[0056] The mounting groove 202 on the mounting ring 201 inside the drying chamber 2 of the present invention can ensure that the drying cloth 4 will not fall off. The inclined surface 203 on the mounting ring 201 can allow the tumbling tea leaves to return to the drying cloth 4. The anti-stick scraper 9 between the mounting rings 201 can ensure that the drying cloth 4 will not stick to the tea leaves and carry them into other structures.

[0057] The low-temperature drying blower structure 7 ensures that the tea leaves are dried at a lower temperature, improving drying efficiency. Simultaneously, as the Dendrobium tea leaves tumble with the movement of the drying cloth 4, the air duct 703 located inside the drying chamber 2 blows air onto the tumbling Dendrobium tea leaves for even better drying results.

[0058] The filter cover structure 8 can reduce the amount of tea residue that is discharged during drying, thus reducing environmental pollution.

[0059] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0060] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A drying device for Dendrobium officinale tea leaves, characterized in that, include: The main unit housing (1) is provided with a drying cloth drying chamber and a drying chamber (2) that are interconnected inside the main unit housing (1); The drying cloth drying chamber is provided with a drying cloth drying structure (3) inside. The drying cloth drying structure (3) and the drying chamber (2) are wrapped with the same drying cloth (4) inside. A high temperature drying blower structure (6) is provided at one end of the drying cloth drying chamber. A coarse filter screen (10) is fixedly connected to the other end of the drying cloth drying chamber. The high temperature drying blower structure (6) corresponds to the coarse filter screen (10). The drying chamber (2) is cylindrical, and the axis of the drying chamber (2) is horizontal. A low-temperature drying blower structure (7) is provided at one end of the drying chamber (2). The air inlet of the low-temperature drying blower structure (7) is located outside the main housing (1), and the air outlet of the low-temperature drying blower structure (7) is located inside the drying chamber (2). A filter cover structure (8) is provided at the end of the drying chamber (2) away from the low-temperature drying blower structure (7). The filter cover structure (8) is hinged to the main housing (1). A drying cloth transmission structure (5) is provided between the drying chamber (2) and the drying cloth drying chamber, and the drying cloth transmission structure (5) is connected to the drying cloth (4) in a transmission manner.

2. The Dendrobium officinale tea drying equipment according to claim 1, characterized in that: The drying structure (3) of the drying cloth includes two staggered stretching roller groups and at least one guide roller (302). The stretching roller group includes several stretching rollers (301). The axes of the stretching rollers (301) and the guide rollers (302) are horizontally arranged. The stretching rollers (301) and the guide rollers (302) are rotatably connected to the inner side of the main housing (1). The drying cloth (4) is wound around several stretching rollers (301). The guide rollers (302) are used to guide the drying cloth (4) back into the drying chamber (2).

3. The Dendrobium officinale tea drying equipment according to claim 1, characterized in that: The high-temperature drying blower structure (6) includes a hot air shell (602), which is fixedly connected to the main unit shell (1). The hot air shell (602) is provided with a blower cavity (603) inside. The air inlet of the blower cavity (603) is connected to the air outlet of the first blower (601). The first blower (601) is fixedly connected to the hot air shell (602). The air outlet of the blower cavity (603) is provided with a plurality of narrow openings (604). The plurality of narrow openings (604) are arranged at equal intervals and correspond to the drying cloth (4). An electric heating wire (605) is fixedly connected to the inside of the blower cavity (603).

4. The Dendrobium officinale tea drying equipment according to claim 1, characterized in that: The drying chamber (2) has two symmetrically arranged mounting rings (201) fixedly connected to its inner side. The mounting rings (201) have mounting grooves (202) on them. The drying cloth (4) has a flexible limiting strip (401) on its edge. The flexible limiting strip (401) is slidably connected to the inner side of the mounting groove (202).

5. The Dendrobium officinale tea drying equipment according to claim 4, characterized in that: The mounting ring (201) has an inclined surface (203) on the inner side of the side closest to the drying cloth (4).

6. The Dendrobium officinale tea drying equipment according to claim 4, characterized in that: An anti-snagging scraper (9) is fixedly connected between the two mounting rings (201), and the anti-snagging scraper (9) is arranged in contact with the drying cloth (4).

7. The Dendrobium officinale tea drying equipment according to claim 1, characterized in that: The low-temperature drying blower structure (7) includes a heating chamber (702), which is fixedly connected to the main unit housing (1). The air inlet of the heating chamber (702) is connected to the air outlet of a second blower (701). The second blower (701) is fixedly connected to the heating chamber (702). The air outlet of the heating chamber (702) is axially connected to a guide pipe (703). The guide pipe (703) is located inside the drying chamber (2) and is coaxially arranged with the drying chamber (2). Several air outlets (704) are provided around the guide pipe (703).

8. The Dendrobium officinale tea drying equipment according to claim 1, characterized in that: The filter cover structure (8) includes a screw cap (801), one end of which is hinged to the main housing (1), and a fine filter screen (802) is fixedly connected to the inside of the screw cap (801).

9. The Dendrobium officinale tea drying equipment according to claim 1, characterized in that: The drying cloth transmission structure (5) includes a drive roller (501), an auxiliary roller (502), and a driven roller (503). The drive roller (501), the auxiliary roller (502), and the driven roller (503) are rotatably connected to the inner side of the main housing (1). The drying cloth (4) is frictionally connected to the drive roller (501) and the auxiliary roller (502). The drying cloth (4) is frictionally connected to the auxiliary roller (502) and the driven roller (503). One end of the active roller (501) is shaft-connected to the output shaft of the drive motor (507), which is fixedly connected to the main housing (1). The other end of the active roller (501) is shaft-connected to the first gear (504). One end of the auxiliary roller (502) is shaft-connected to the second gear (505), which meshes with the first gear (504) and the second gear (505). One end of the driven roller (503) is shaft-connected to the third gear (506), which meshes with the second gear (505) and the third gear (506).

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