Extraction method of tea leaf essential oil

Abstract

The invention belongs to the technical field of essential oil extraction, and discloses a tea essential oil extraction method which comprises a support, a distillation retort is fixedly mounted in the support through bolts, an air inlet pipe is welded to one end of the distillation retort, a condenser is connected to the top end of the distillation retort through a pipeline, and a collecting tank is mounted at one end of the condenser; a stir-frying mechanism is fixedly mounted in the distillation tank and comprises a screen for placing tea leaves, so that each part of the tea leaves can be uniformly heated in the distillation process, and the phenomenon of local overheating or insufficient heating is avoided, so that the quality and extraction efficiency of essential oil are ensured; compared with standing tea leaves, the stir-fried tea leaves can release more essential oil components in a short time, can promote air circulation, help molecules of the essential oil to be in better contact with steam and increase the volatility of the essential oil, so that the yield and the extraction efficiency of the essential oil are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of essential oil extraction, and in particular relates to a method for extracting tea essential oil. Background Art

[0002] As a traditional drink, tea has a lot of aromatic substances that are loved by people. In recent years, studies have found that tea contains a lot of volatile essential oils, which have a variety of biological activities, including antioxidant, antibacterial, and anti-inflammatory effects.

[0003] At present, the extraction methods of tea essential oil mainly include distillation, supercritical fluid extraction and short-range thermal treatment;

[0004] Currently, there are three methods of distillation: above-water distillation, in-water distillation and direct introduction of steam. However, in the direct steam distillation method, since the gas is pressurized into the distillation tank, it is not convenient to stir-fry the tea leaves, which causes the bottom of the tea leaves to be heated higher than the top, resulting in uneven heating of the tea leaves, which further affects the extraction of tea essential oil. Summary of the invention

[0005] The present invention aims at the problem that in the prior art, in which the gas is directly introduced into the distillation tank under pressure, it is inconvenient to stir-fry the tea leaves, so that the bottom of the tea leaves are heated higher than the top, and the tea leaves are heated unevenly, which further affects the extraction of tea essential oil. The present invention proposes the following technical solution:

[0006] A method for extracting tea essential oil is applied to an extraction device for tea essential oil, the extraction device for tea essential oil comprising a bracket, a distillation tank is fixedly installed inside the bracket by bolts, an air inlet pipe is welded to one end of the distillation tank, a condenser is connected to the top of the distillation tank by a pipeline, and a collecting tank is installed at one end of the condenser; a stir-frying mechanism is fixedly installed inside the distillation tank, the stir-frying mechanism comprises a screen for placing tea leaves, a limiting ring for limiting the position of the tea leaves is welded to the top edge of the screen, a limiting ring for limiting the position of the tea leaves is welded to the middle of the screen, and a A rotating ring, a guide groove is welded on the top of the rotating ring, and a rotating shaft that drives the object to rotate is connected to the middle of the screen and the limiting ring. Three round rods with supporting functions are welded equidistantly on the outside of the rotating shaft and correspond to the middle of the top of the guide groove. The gas flows along the outside of the guide groove, thereby setting a wind wall between the round rod and the limiting ring. A rotating sleeve is rotatably connected on the outside of the round rod, and a bucket is fixedly installed equidistantly on the outside of the rotating sleeve. A barrier strip is rotatably connected to one end of the rotating sleeve corresponding to the outside of the round rod, and the barrier strip is attached to the top of the limiting ring; the method for extracting tea essential oil comprises the following steps:

[0007] Step 1: Choose tea: First, choose tea as the raw material;

[0008] Step 2: receiving raw materials: putting dry tea leaves into a distillation tank and suspending them in the air through a stir-frying mechanism;

[0009] Step 3: Extraction of essential oils: Steam is filled into the distillation tank, and the steam contacts and evaporates the tea leaves. At this time, the stir-frying mechanism operates to turn the tea leaves inside the distillation tank, and the steam contacts and evaporates the tea leaves and enters the condenser for condensation.

[0010] Step 4: Essential oil collection and post-distillation processing: Filter the collected liquid through a filter and collect it through a collection bottle.

[0011] As a preferred embodiment of the above technical solution, a triangular arc ring is fixedly installed at the bottom end of the rotating shaft, a driving blade is fixedly installed at the bottom end of the triangular arc ring, a stirring blade is fixedly installed at the top end of the rotating shaft, a guide cover is fixedly installed at the bottom end of the screen at the outer side of the stirring blade and the rotating shaft passes through the guide cover.

[0012] As a preferred embodiment of the above technical solution, a plurality of connecting pipes are fixedly installed inside the air guide cover and the connecting pipes pass through the interior of the limiting ring, and a connecting strip is fixedly installed on the top of the rotating ring and the connecting strip is fixedly installed on the outside of the top of the rotating shaft.

[0013] As a preferred embodiment of the above technical solution, a flip bar is installed at the top edge of the guide groove, and the size of the flip bar is larger than the size of the air outlet of the guide groove.

[0014] As a preferred embodiment of the above technical solution, an inner serrated ring is welded to the edge of the inner wall of the limiting ring, and a static gear is meshedly connected to the inner wall of the inner serrated ring. A bevel gear is fixedly installed on the top of the static gear, and a mounting plate is sleeved on the bottom of the outer surface of the bevel gear and the mounting plate is fixedly installed on the outside of the rotating shaft.

[0015] As a preferred embodiment of the above technical solution, the outer side of the bevel gear is meshedly connected with a bevel gear ring fixedly connected to the rotating sleeve, and the bottom end of the bevel gear is rotatably connected to the inside of the mounting plate.

[0016] As a preferred embodiment of the above technical solution, a bottom supporting mechanism is fixedly installed at the bottom end of the driving blade inside the distillation tank, and the bottom supporting mechanism includes a supporting ring fixedly installed inside the distillation tank, arc strips are welded at equal distances on the top of the support ring, cylinders are welded between several of the arc strips, manual telescopic rods are fixedly installed on the bottom ends of several of the arc strips, and a sealing plug is fixedly installed on the bottom end of the manual telescopic rod and the sealing plug is slidably connected to the outside of the cylinder.

[0017] As a preferred embodiment of the above technical solution, an arc groove is provided inside the support ring, and a guide groove is provided at the top end of the sealing plug.

[0018] The beneficial effects of the present invention are:

[0019] (1) It can ensure that all parts of the tea leaves are heated evenly during the distillation process, avoiding local overheating or insufficient heating, thereby ensuring the quality and extraction efficiency of the essential oil. It can also destroy the cell structure on the surface of the tea leaves, accelerating the release of the essential oil. Compared with the static tea leaves, the stir-fried tea leaves can release more essential oil components in a shorter time, promote air circulation, help the molecules of the essential oil to better contact with the steam, increase its volatility, and thus improve the yield and extraction efficiency of the essential oil.

[0020] (2) It can effectively prevent tea leaves from piling up on the surface of the screen, especially on the outside, and avoid the failure of some areas to be effectively stir-fried due to the accumulation, thereby achieving a full stir-frying effect. By ensuring that the tea leaves are fully stir-fried, the quality loss and waste of tea leaves caused by uneven heating can be reduced, the tea leaves processing efficiency can be improved, and the tea leaves can be made to reach an ideal processing state in a shorter time, thereby improving processing efficiency and saving manpower and time.

[0021] (3) The overall space size inside the distillation tank is changed, thereby achieving the purpose of saving steam resources, and at the same time, the driving blades can be supported to prevent the driving blades from falling, thereby increasing the stability of the driving blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a structural schematic diagram of a method for extracting tea essential oil in Example 1;

[0023] Figure 2 Shown is a front view of a method for extracting tea essential oil in Example 1;

[0024] Figure 3 Shown is a schematic cross-sectional view of the distillation tank in Example 1;

[0025] Figure 4 The diagram shows the connection structure of the stir-frying mechanism and the bottom support mechanism in Example 1;

[0026] Figure 5 What is shown is a schematic diagram of the structure of the stir-frying mechanism in Example 1;

[0027] Figure 6 Shown is a bottom view of the stir-frying mechanism in Example 1;

[0028] Figure 7 The figure shows a schematic diagram of the installation structure of the rotating sleeve in Example 1;

[0029] Figure 8 The example 1 is shown Figure 7 Schematic diagram of the installation structure in area A;

[0030] Fig. 9 The figure shows a schematic diagram of the installation structure of the air guide cover in Example 1;

[0031] Fig.10 Shown is a cross-sectional view of the air deflector in Example 1;

[0032] Fig.11 What is shown is a schematic structural diagram of the bottom support mechanism in Example 1.

[0033] In the figure: 1. bracket; 2. distillation tank; 3. air inlet pipe; 4. condenser; 5. collecting tank; 6. stir-frying mechanism; 61. screen; 62. limiting ring; 63. rotating shaft; 64. triangular arc ring; 65. driving blade; 66. stirring blade; 67. deflector; 68. connecting pipe; 69. limiting ring; 610. connecting strip; 611. rotating ring; 612. guide groove; 613. flipping strip; 614. mounting plate; 615. static gear; 616. bevel gear; 617. bevel gear ring; 618. rotating sleeve; 619. bucket; 620. barrier strip; 621. round rod; 622. inner serrated ring; 7. bottom support mechanism; 71. support ring; 72. arc strip; 73. cylinder; 74. manual telescopic rod; 75. sealing plug; 76. arc groove; 77. guide groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0035] Embodiment 1: The present invention provides a method for extracting tea essential oil, such as Figures 1 to 11 As shown, the extraction equipment for tea essential oil includes a bracket 1, a distillation tank 2 is fixedly installed inside the bracket 1 by bolts, an air inlet pipe 3 is welded to one end of the distillation tank 2, a condenser 4 is connected to the top of the distillation tank 2 by a pipeline, and a collection tank 5 is installed at one end of the condenser 4;

[0036] A stir-frying mechanism 6 is fixedly installed inside the distillation tank 2, and the stir-frying mechanism 6 includes a screen 61 for placing tea leaves, a limiting ring 62 for limiting the position of the tea leaves is welded on the top edge of the screen 61, a limiting ring 69 for limiting the position of the tea leaves is welded in the middle of the screen 61, a rotating ring 611 is rotatably connected inside the limiting ring 69, a guide groove 612 is welded on the top of the rotating ring 611, and a rotating shaft 63 for driving the object to rotate is rotatably connected to the middle of the screen 61 and the limiting ring 69, and the rotating shaft Three round rods 621 with supporting functions are welded at equal intervals on the outside of 63 and correspond to the middle of the top of the guide groove 612. The gas flows along the outside of the guide groove 612, thereby setting a wind wall between the round rod 621 and the limiting ring 69. The outside of the round rod 621 is rotatably connected to the rotating sleeve 618, and the bucket 619 is fixedly installed at equal intervals on the outside of the rotating sleeve 618. The outside of the round rod 621 is rotatably connected to one end of the rotating sleeve 618, and the blocking strip 620 is attached to the top of the limiting ring 62.

[0037] like Figure 5 and Figure 6 As shown, a triangular arc ring 64 is fixedly installed at the bottom end of the rotating shaft 63, a driving blade 65 is fixedly installed at the bottom end of the triangular arc ring 64, a stirring blade 66 is fixedly installed at the top end of the rotating shaft 63, a guide cover 67 is fixedly installed at the bottom end of the screen 61 at the outer position of the stirring blade 66, and the rotating shaft 63 passes through the guide cover 67;

[0038] When the steam flows, the driving blade 65 is driven to rotate. When the driving blade 65 rotates, the stirring blade 66 is driven to rotate. When the stirring blade 66 rotates, the steam is adsorbed. When the stirring blade 66 rotates, the rotating shaft 63 is driven to rotate, thereby changing the difficulty of rotating the rotating shaft 63, thereby facilitating the adjustment of the position of the rotating sleeve 618.

[0039] like Fig. 9 and Fig.10 As shown, a plurality of connecting pipes 68 are fixedly installed inside the air guide cover 67 and the connecting pipes 68 penetrate the inside of the limiting ring 69, and a connecting strip 610 is fixedly installed on the top of the rotating ring 611 and the connecting strip 610 is fixedly installed on the outside of the top of the rotating shaft 63;

[0040] When the stirring blade 66 rotates, the steam enters the deflector 67, and enters the limiting ring 69 through the connecting pipe 68, and then is discharged along the deflector groove 612 at the top of the limiting ring 69, thereby forming a wind wall at the connection between the rotating sleeve 618 and the limiting ring 69, thereby preventing the tea leaves that fall after being scooped by the bucket 619 from entering the limiting ring 69.

[0041] like Fig. 9 and Fig.10As shown, a flip bar 613 is installed at the top edge of the guide groove 612, and the size of the flip bar 613 is larger than the size of the air outlet of the guide groove 612;

[0042] The direction of the air outlet is changed by the flip bar 613 , and the tea leaves are prevented from entering the guide groove 612 under the blocking condition of the flip bar 613 .

[0043] like Figure 7 and Figure 8 As shown, an inner serrated ring 622 is welded to the inner wall edge of the limiting ring 69, and a static gear 615 is meshedly connected to the inner wall of the inner serrated ring 622. A bevel gear 616 is fixedly installed on the top of the static gear 615. A mounting plate 614 is sleeved on the bottom of the outer surface of the bevel gear 616, and the mounting plate 614 is fixedly installed on the outside of the rotating shaft 63. A bevel gear ring 617 fixedly connected to the rotating sleeve 618 is meshedly connected to the outer side of the bevel gear 616, and the bottom end of the bevel gear 616 is rotatably connected to the inside of the mounting plate 614.

[0044] When the rotating shaft 63 rotates, it drives the mounting plate 614 to rotate, causing the static gear 615 to be displaced. When the static gear 615 is displaced, it engages with the inner serrated ring 622, causing the static gear 615 to rotate. When the static gear 615 rotates, it drives the bevel gear 616 to rotate. When the bevel gear 616 rotates, it drives the bevel gear ring 617 to rotate. When the bevel gear ring 617 rotates, it drives the rotating sleeve 618 to rotate on itself, thereby changing the difficulty of rotating the rotating sleeve 618.

[0045] like Figure 3 and Fig.11 As shown, a bottom support mechanism 7 is fixedly installed at the bottom end of the driving blade 65 inside the distillation tank 2, and the bottom support mechanism 7 includes a support ring 71 fixedly installed inside the distillation tank 2, arc strips 72 are welded at equal distances on the top of the support ring 71, and cylinders 73 are welded between a plurality of arc strips 72, and a manual telescopic rod 74 is fixedly installed at the bottom end of the plurality of arc strips 72, and a sealing plug 75 is fixedly installed at the bottom end of the manual telescopic rod 74 and the sealing plug 75 is slidably connected to the outside of the cylinder 73, an arc groove 76 is opened inside the support ring 71, and a guide groove 77 is opened at the top end of the sealing plug 75;

[0046] It can be used to adjust the space inside the distillation tank 2, changing the size of the port space inside the distillation tank 2, thereby saving steam resources, and can support the driving blade 65, increase the supporting force at the bottom end of the driving blade 65, and prevent the driving blade 65 from being displaced.

[0047] The present invention also provides a method for extracting tea essential oil, which is applied to a tea essential oil extraction device and comprises the following steps:

[0048] Step 1: Choose tea: First, choose tea as the raw material;

[0049] Step 2: receiving raw materials: putting dry tea leaves into a distillation tank and suspending them in the air through a stir-frying mechanism;

[0050] Step 3: Extraction of essential oils: Steam is filled into the distillation tank, and the steam contacts and evaporates the tea leaves. At this time, the stir-frying mechanism operates to turn the tea leaves inside the distillation tank, and the steam contacts and evaporates the tea leaves and enters the condenser for condensation.

[0051] Step 4: Essential oil collection and post-distillation processing: The collected liquid is filtered through a filter and collected through a collection bottle, including the following steps:

[0052] Step 1: Select tea: First, select tea as the raw material. The types of tea can be green tea, black tea, oolong tea, etc. Dry the freshly picked tea leaves to remove excess moisture and improve the extraction efficiency of essential oils.

[0053] Step 2: receiving raw materials: putting dry tea leaves into the distillation tank 2 and suspending them in the air through the stir-frying mechanism 6;

[0054] Step 3: Extraction of essential oil: Steam is charged into the distillation tank 2, and the steam contacts and evaporates the tea leaves. At this time, the turning mechanism 6 operates to turn the tea leaves inside the distillation tank 2, and the steam contacts and evaporates the tea leaves and enters the condenser 4 for condensation. The essential oil components in the steam are condensed and collected through condensation, while the water-containing substances are discharged through different channels to avoid loss of essential oils.

[0055] Step 4: Essential oil collection and post-distillation processing: Filter the collected liquid through a filter to remove impurities and unnecessary moisture to obtain pure tea essential oil, and finally collect it through a collection bottle.

[0056] Working principle: During the actual use of the device, the user opens and closes the end cover at the top of the distillation tank 2, and then puts the freshly picked tea leaves into the top of the screen 61 after drying, and at this time pulls the manual telescopic rod 74, which drives the sealing plug 75 to move. When the sealing plug 75 moves, it enters the support ring 71, and the support ring 71 is sealed, thereby changing the overall space size inside the distillation tank 2, thereby achieving the purpose of saving steam resources. In this process, the bottom of the distillation tank 2 can be heated, and hot water can be put into the support ring 71 to form water vapor, so as to achieve the purpose of extracting the tea leaves, and at the same time, the driving blade 65 can be supported to prevent the driving blade 65 from falling, thereby increasing the stability of the driving blade 65.

[0057] Then, the air inlet pipe 3 is connected to the external steam generator, and the end cover of the distillation tank 2 is closed. In this process, the steam directly impacts the outer side of the driving blade 65, causing the driving blade 65 to rotate. When the driving blade 65 rotates, it drives the rotating shaft 63 to rotate. When the rotating shaft 63 rotates, it drives the mounting plate 614 and the round rod 621 to rotate synchronously. At this time, due to the meshing between the static gear 615 and the inner serrated ring 622, the static gear 615 rotates by itself. When the static gear 615 rotates, it drives the bevel gear 616 to rotate. When the bevel gear 616 rotates, it drives the bevel gear ring 617 to rotate. When the toothed ring 617 rotates, it drives the rotating sleeve 618 to rotate. The rotating sleeve 618 rotates and drives the bucket 619 to stir-fry the tea leaves, which can ensure that all parts of the tea leaves are evenly heated during the distillation process, avoiding local overheating or insufficient heating, thereby ensuring the quality and extraction efficiency of the essential oil, and can destroy the cell structure on the surface of the tea leaves, accelerating the release of the essential oil. Compared with the static tea leaves, the stir-fried tea leaves can release more essential oil components in a shorter time, which can promote air circulation, help the molecules of the essential oil to better contact with the steam, increase its volatility, and thus improve the yield and extraction efficiency of the essential oil;

[0058] When the bucket 619 is frying the tea leaves, the tea leaves on the outside are blocked by the blocking strip 620, and at the same time, the rotating shaft 63 rotates to drive the stirring blade 66 to rotate. When the stirring blade 66 rotates, it drives the steam to enter the inside of the limiting ring 69 along the guide cover 67 and the connecting pipe 68, and in this process, the connecting strip 610 drives the rotating ring 611 to rotate synchronously, and at this time, the gas inside the limiting ring 69 is discharged along the guide groove 612 of the connecting strip 610, and blows the flipping strip 613, so that the flipping strip 613 flips, and after the flipping strip 613 flips, the gas is discharged along the guide groove 612, and forms a gas waterfall near the end of the connecting strip 610, and the blocking effect of the gas and the blocking strip 620 is utilized to prevent the tea leaves from flowing to the outside during frying, thereby causing the tea leaves to be The phenomenon of tea leaves falling to other parts can be avoided, and in this process, the tea leaves can enter the screen 61 and be located at the bottom of the bucket 619, so that the tea leaves on the screen 61 at the bottom of the bucket 619 are turned over, and the tea leaves on both sides flow to the bottom of the bucket 619, so that the tea leaves on the surface of the screen 61 are turned over comprehensively, which can effectively prevent the tea leaves from piling up on the surface of the screen 61, especially on the outer side, and avoid the partial area from being effectively turned over due to the accumulation, so as to achieve a sufficient turning over effect. By ensuring the turning over of the tea leaves comprehensively, the quality loss and waste of the tea leaves caused by uneven heating can be reduced, the tea leaves processing efficiency can be improved, and the tea leaves can reach the ideal processing state in a shorter time, thereby improving the processing efficiency and saving manpower and time.

[0059] The steam during the tea distillation process, at this time, the essential oil components in the tea and the steam enter the condenser 4 for condensation, and the essential oil components in the steam are condensed and collected through condensation. The condensed liquid falls into the collection tank 5 for collection, thereby completing the overall collection of the tea essential oil.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A method for extracting tea essential oil, characterized in that: The invention relates to an extraction device for tea essential oil, comprising a bracket (1), wherein a distillation tank (2) is fixedly installed inside the bracket (1) by means of bolts, an air inlet pipe (3) is welded to one end of the distillation tank (2), a condenser (4) is connected to the top of the distillation tank (2) by means of a pipeline, and a collecting tank (5) is installed at one end of the condenser (4); a stir-frying mechanism (6) is fixedly installed inside the distillation tank (2), the stir-frying mechanism (6) comprises a screen (61) for placing tea leaves, a limiting ring (62) for limiting the position of the tea leaves is welded to the top edge of the screen (61), a limiting ring (69) for limiting the position of the tea leaves is welded to the middle of the screen (61), a rotating ring (611) is rotatably connected to the inside of the limiting ring (69), and the rotating ring (611) is rotatably connected to the inside of the limiting ring (69). 1) A guide groove (612) is welded at the top, and a rotating shaft (63) is rotatably connected to the middle of the screen (61) and the limiting ring (69) for driving the object to rotate. Three round rods (621) with a supporting function are equidistantly welded on the outside of the rotating shaft (63) and correspond to the middle of the top of the guide groove (612). The gas flows along the outside of the guide groove (612), thereby setting a wind wall between the round rod (621) and the limiting ring (69). A rotating sleeve (618) is rotatably connected to the outside of the round rod (621). A bucket (619) is equidistantly fixedly installed on the outside of the rotating sleeve (618). A blocking strip (620) is rotatably connected to one end of the rotating sleeve (618) on the outside of the round rod (621), and the blocking strip (620) is attached to the top of the limiting ring (62); The extraction method of tea essential oil comprises the following steps: Step 1: Choose tea: First, choose tea as the raw material; Step 2: receiving raw materials: putting dried tea leaves into a distillation tank (2) and suspending them in the air through a stir-frying mechanism (6); Step 3: Extraction of essential oil: Steam is introduced into the distillation tank (2), and the steam contacts and evaporates the tea leaves. At this time, the stir-frying mechanism (6) operates to cause the tea leaves to turn inside the distillation tank (2), and the steam contacts and evaporates the tea leaves and enters the condenser (4) for condensation. Step 4: Essential oil collection and post-distillation processing: Filter the collected liquid through a filter and collect it through a collection bottle.

2. The method for extracting tea essential oil according to claim 1, characterized in that: A triangular arc ring (64) is fixedly mounted on the bottom end of the rotating shaft (63), a driving blade (65) is fixedly mounted on the bottom end of the triangular arc ring (64), a stirring blade (66) is fixedly mounted on the top end of the rotating shaft (63), a flow guide cover (67) is fixedly mounted on the bottom end of the screen (61) at a position outside the stirring blade (66), and the rotating shaft (63) passes through the flow guide cover (67).

3. The method for extracting tea essential oil according to claim 2, characterized in that: A plurality of connecting pipes (68) are fixedly installed inside the deflector (67), and the connecting pipes (68) penetrate the interior of the limiting ring (69). A connecting strip (610) is fixedly installed at the top end of the rotating ring (611), and the connecting strip (610) is fixedly installed on the outside of the top end of the rotating shaft (63).

4. The method for extracting tea essential oil according to claim 1, characterized in that: A flip bar (613) is installed at the top edge of the guide groove (612), and the size of the flip bar (613) is larger than the size of the air outlet of the guide groove (612).

5. The method for extracting tea essential oil according to claim 1, characterized in that: An inner serrated ring (622) is welded to the inner wall edge of the limiting ring (69), and a static gear (615) is meshedly connected to the inner wall of the inner serrated ring (622). A bevel gear (616) is fixedly mounted on the top of the static gear (615), and a mounting plate (614) is sleeved on the bottom of the outer surface of the bevel gear (616), and the mounting plate (614) is fixedly mounted on the outside of the rotating shaft (63).

6. The method for extracting tea essential oil according to claim 5, characterized in that: The outer side of the bevel gear (616) is meshedly connected with a bevel gear ring (617) fixedly connected to the rotating sleeve (618), and the bottom end of the bevel gear (616) is rotatably connected to the inside of the mounting plate (614).

7. The method for extracting tea essential oil according to claim 1, characterized in that: A bottom support mechanism (7) is fixedly installed at the bottom end of the driving blade (65) inside the distillation tank (2), and the bottom support mechanism (7) includes a support ring (71) fixedly installed inside the distillation tank (2), arc strips (72) are welded at equal distances on the top of the support ring (71), and cylinders (73) are welded between a plurality of the arc strips (72), and a manual telescopic rod (74) is fixedly installed at the bottom end of a plurality of the arc strips (72), and a sealing plug (75) is fixedly installed at the bottom end of the manual telescopic rod (74), and the sealing plug (75) is slidably connected to the outside of the cylinder (73).

8. The method for extracting tea essential oil according to claim 7, characterized in that: An arc-shaped groove (76) is provided inside the support ring (71), and a guide groove (77) is provided at the top end of the sealing plug (75).

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