CN112322392A - Method for extracting antrodia camphorata essential oil - Google Patents
Method for extracting antrodia camphorata essential oil Download PDFInfo
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- CN112322392A CN112322392A CN202011180956.6A CN202011180956A CN112322392A CN 112322392 A CN112322392 A CN 112322392A CN 202011180956 A CN202011180956 A CN 202011180956A CN 112322392 A CN112322392 A CN 112322392A
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- 238000000605 extraction Methods 0.000 claims abstract description 33
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- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000000194 supercritical-fluid extraction Methods 0.000 claims abstract description 9
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/025—Recovery by solvent extraction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/005—Antimicrobial preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/004—Aftersun preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/805—Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Birds (AREA)
- Epidemiology (AREA)
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- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses an extraction method of antrodia camphorata essential oil, belonging to the technical field of antrodia camphorata application, and the extraction method comprises the following steps: s1, pretreatment: cleaning Antrodia camphorata, drying in the air, and drying in an oven at 60-80 deg.C for 1-2 hr; s2, leaching: putting the pretreated antrodia camphorata into an extraction tank, extracting for 4-8h at 60-80 ℃, and filtering out dregs to obtain an extract; s3, concentrating and drying: concentrating the leaching solution, and spray drying to obtain Antrodia camphorata micro powder; s4, preparing antrodia camphorata essential oil: and (3) putting the antrodia cinnamomea micro powder into a supercritical fluid extraction kettle, and extracting to obtain the antrodia cinnamomea essential oil. The extraction pressure of the supercritical fluid extraction kettle is 32-40MPa, the extraction temperature is 42-47 ℃, and the extraction time is 50-60 min. The invention can effectively reduce the extraction time and improve the extraction efficiency.
Description
Technical Field
The invention relates to the technical field of antrodia camphorata application, and particularly relates to an extraction method of antrodia camphorata essential oil.
Background
Antrodia camphorata, also known as Antrodia camphorata, belongs to the order Aphyllophorales, Polyporaceae, perennial mushroom fungi. The Antrodia camphorata contains various physiological active ingredients, such as polysaccharide, triterpenes, superoxide dismutase (SOD) adenosine, protein (containing immunity protein), various vitamins, microelements (calcium, phosphorus and paper mulberry), nucleic acid, agglutinin, amino acids, cholesterol, lignin, blood pressure stabilizing substances, etc. It has physiological activity of resisting tumor, enhancing immunity, resisting virus, resisting allergy, resisting hypertension, inhibiting platelet aggregation, lowering blood pressure, reducing cholesterol, resisting bacteria, protecting liver, etc.
Because the polysaccharide contained in the antrodia camphorata can activate cells, improve physique and enhance the immune regulation in human body, the antrodia camphorata can prevent influenza virus infection at early stage and improve immunity, and can resist influenza and viruses related to intestinal tracts; in addition, the antrodia camphorata can also prevent various cardiovascular diseases, has the curative effects of protecting the liver, promoting the regeneration of liver cells and resisting liver cancer, has multiple effects, so the antrodia camphorata has wide application and can be processed into antrodia camphorata tea, antrodia camphorata wine, antrodia camphorata essential oil, antrodia camphorata spray and the like.
Chinese patents with application publication number CN108456592A and application publication date 2018, 08 and 28 disclose a method for extracting Antrodia camphorata essential oil. In the existing extraction process of antrodia camphorata essential oil, a soaking mode is adopted to lead soluble effective components in the antrodia camphorata to be carried out by water, the antrodia camphorata needs to be soaked for 15-24h, the time is long, and the soaking effect is poor.
In view of the above, the invention provides a method for extracting antrodia camphorata essential oil.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an extraction method of antrodia camphorata essential oil.
In order to achieve the purpose, the invention provides the following technical scheme:
the extraction method of the antrodia camphorata essential oil comprises the following steps:
s1, pretreatment: cleaning Antrodia camphorata, drying in the air, and drying in an oven at 60-80 deg.C for 1-2 hr;
s2, leaching: putting the pretreated antrodia camphorata into an extraction tank, extracting for 4-8h at 60-80 ℃, and filtering out dregs to obtain an extract;
s3, concentrating and drying: concentrating the leaching solution, and spray drying to obtain Antrodia camphorata micro powder;
s4, preparing antrodia camphorata essential oil: and (3) putting the antrodia cinnamomea micro powder into a supercritical fluid extraction kettle, and extracting to obtain the antrodia cinnamomea essential oil.
More preferably: the extraction pressure of the supercritical fluid extraction kettle is 32-40MPa, the extraction temperature is 42-47 ℃, and the extraction time is 50-60 min.
More preferably: in step S2, the leaching tank includes a tank body, a driving mechanism, a stirring liquid outlet mechanism, a filter screen, a connecting pipe, a pump, and a return pipe;
the top of the tank body is covered with a cover plate, the cover plate is provided with a feed inlet, an upper chamber and a lower chamber are arranged in the tank body, a filter screen is arranged between the upper chamber and the lower chamber, the filter screen is fixed below the inner part of the tank body, the bottom of the tank body is provided with a leaching liquor outlet, the side part is provided with a dregs outlet, and the dregs outlet is positioned on the upper chamber;
the connecting pipe with lower cavity intercommunication, the pump import with the connecting pipe is connected, the export with the back flow is connected, the pump be used for with material in the lower cavity is carried extremely stirring liquid mechanism, stirring liquid mechanism is used for stirring material in the upper cavity just is used for with material in the back flow is sent back to go up the cavity, actuating mechanism is used for the drive stirring liquid mechanism stirs.
More preferably: the stirring liquid outlet mechanism comprises a central pipe and a stirring pipe, the top of the filter screen is provided with a slot, the central pipe is positioned in the middle of the tank body, the lower end of the central pipe is inserted into the slot, the upper end of the central pipe penetrates through the cover plate and extends upwards, the upper end of the central pipe is an open end, and the lower end of the central pipe is a closed end;
the stirring pipe is fixed on the outer surface of the central pipe and is coaxially and rotatably arranged with the central pipe, one end of the stirring pipe is fixed with the central pipe, the other end of the stirring pipe is close to the inner wall of the upper chamber, and the stirring pipe is communicated with the central pipe;
the central pipe and the stirring pipe are provided with through holes, one end of the return pipe is connected with the pump, and the other end of the return pipe is inserted into the central pipe from the upper end of the central pipe.
More preferably: the driving mechanism comprises a motor, a driving gear, a supporting platform, a driven gear and a connecting shaft;
the supporting platform is fixed on the cover plate, the motor is installed on the supporting platform, a central shaft of the driving gear is parallel to a central shaft of the central pipe, the driving gear and the driven gear are both contacted with the top surface of the cover plate, the upper end of the connecting shaft is connected with an output shaft of the motor, the lower end of the connecting shaft penetrates through the center of the driving gear and is inserted in the cover plate, and the driving gear is fixed on the connecting shaft;
the driven gear is meshed with the driving gear, and the driving gear is sleeved on the central tube and fixed with the central tube.
More preferably: the filter screen sets up for the slope, dregs of a decoction export is located go up cavity lower part one side and be close to the lowest position of filter screen.
More preferably: one end of the medicine residue outlet is fixed on the tank body, and the other end of the medicine residue outlet is inclined downwards in the direction far away from the tank body.
More preferably: the outer surface of the tank body is provided with a jacket, the jacket is provided with a heat medium inlet and a heat medium outlet, the heat medium inlet is positioned on one side of the lower part of the tank body, and the heat medium outlet is positioned on one side of the upper part of the tank body.
More preferably: the heat medium inlet is used for the heat medium to enter, the heat medium outlet is used for the heat medium to flow out, and the heat medium is hot water or steam.
More preferably: an eccentric block is fixed in the axial direction of the central pipe, and the eccentric block is located on the lower portion of the central pipe and below the stirring pipe.
In conclusion, the invention has the following beneficial effects: in order to dissolve the active ingredients in the antrodia camphorata, the invention adopts the leaching tank to leach for 6 hours at 70 ℃, compared with the traditional soaking mode, the soaking time can be effectively reduced, and the extraction efficiency is improved. The antrodia camphorata essential oil obtained by the invention can be applied to cosmetics, daily chemical products and the like, and the antrodia camphorata essential oil handmade soap prepared from the antrodia camphorata essential oil has the effects of sterilization and moisture retention, and can improve symptoms such as thick pores, black heads inhibition, erythema, edema and the like caused by ultraviolet rays. The invention specially designs a novel circulating reflux type leaching tank for improving the leaching efficiency, and the leaching effect is better.
Drawings
FIG. 1 is a block flow diagram of example 1, which is mainly used for embodying the method for extracting Antrodia camphorata essential oil;
FIG. 2 is a schematic structural view of example 1, which is mainly used for embodying the internal structure of a leaching tank;
FIG. 3 is a schematic sectional view of embodiment 1, which is mainly used for showing the structure of a stirring and liquid-discharging mechanism.
In the figure, 1, a tank body; 2. a jacket; 3. a thermal medium inlet; 4. a thermal medium outlet; 5. a medicine residue outlet; 6. a leaching liquor outlet; 7. filtering with a screen; 81. a motor; 82. a driving gear; 83. a support platform; 84. a driven gear; 91. a central tube; 92. a stirring pipe; 93. a through hole; 94. an eccentric block; 10. a slot; 11. a feed inlet; 12. a cover plate; 13. a connecting pipe; 14. a pump; 15. a return pipe; 16. an upper chamber; 17. a lower chamber.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example 1: an extraction method of Antrodia camphorata essential oil is shown in figure 1 and comprises the following steps:
s1, pretreatment: cleaning Antrodia camphorata, airing, and drying for 1.5 hours at 70 ℃ through an oven for later use;
s2, leaching: putting the pretreated antrodia camphorata into a leaching tank, leaching for 6 hours at 70 ℃, and filtering out dregs to obtain a leaching solution;
s3, concentrating and drying: concentrating the leaching solution, and spray drying to obtain Antrodia camphorata micro powder;
s4, preparing antrodia camphorata essential oil: putting the antrodia camphorata micro powder into a supercritical fluid extraction kettle, and extracting for 55min under the conditions of extraction pressure of 38MPa and extraction temperature of 45 ℃ to obtain the antrodia camphorata essential oil.
In the technical scheme, in order to dissolve the active ingredients in the antrodia camphorata, the extraction tank is adopted for extraction, and the extraction is carried out for 6 hours at 70 ℃, so that compared with the traditional water soaking mode, the soaking time can be effectively reduced, and the extraction efficiency is improved. The antrodia camphorata essential oil obtained by the invention can be applied to cosmetics, daily chemical products and the like, and the antrodia camphorata essential oil handmade soap prepared from the antrodia camphorata essential oil has the effects of sterilization and moisture retention, and can improve symptoms such as thick pores, black heads inhibition, erythema, edema and the like caused by ultraviolet rays.
Referring to fig. 2 to 3, in step S2, the leaching tank includes a tank body 1, a driving mechanism, a stirring liquid outlet mechanism, a filter screen 7, a connecting pipe 13, a pump 14, and a return pipe 15. The top of the tank body 1 is covered with a cover plate 12, the thickness of the cover plate 12 gradually becomes thinner from the middle part to the periphery, and the cover plate 12 is connected with the tank body 1 through bolts. Specifically, jar body 1 top is provided with the round flange, and the impartial interval is provided with a plurality of screw holes on flange and the apron 12, and the bolt is installed in the screw hole to make apron 12 can dismantle the connection on jar body 1. A feed inlet 11 is formed in the cover plate 12, the feed inlet 11 is located on one side of the middle of the cover plate 12, and materials such as antrodia camphorata and solvent (water) are added into the tank body 1 through the feed inlet 11.
Referring to fig. 2-3, an upper chamber 16 and a lower chamber 17 are arranged inside the tank body 1, a filter screen 7 is arranged between the upper chamber 16 and the lower chamber 17, and the upper chamber 16 and the lower chamber 17 are respectively positioned at the upper side and the lower side of the filter screen 7. The filter screen 7 is fixed in jar internal portion below 1, and jar 1 bottom is provided with leaching liquor export 6, and leaching liquor export 6 is located cavity 17 bottom center down. The side part of the tank body 1 is provided with a dregs of a decoction outlet 5, and the dregs of a decoction outlet 5 is positioned on the upper chamber 16. Filter screen 7 is the slope setting, and dregs of a decoction export 5 is located 16 lower part one sides of last cavity and is close to the lowest position of filter screen 7, and 5 one ends of dregs of a decoction export are fixed on jar body 1, and the other end is to keeping away from jar body 1 direction downward sloping to make the dregs of a decoction outwards discharge along filter screen 7 and dregs of a decoction export 5.
In the above technical scheme, materials such as antrodia camphorata and solvent are added into the tank body 1 through the feed inlet 11, and because the filter screen 7 is arranged between the upper chamber 16 and the lower chamber 17, the antrodia camphorata can only be intercepted in the upper chamber 16, and the solvent can circulate between the upper chamber 16 and the lower chamber 17, so that a better filtering effect can be achieved, the leaching liquor and the medicine residues can be separated conveniently, the leaching liquor is discharged outwards through the leaching liquor outlet 6, and the leaching liquor is convenient to circulate and flow back.
Referring to fig. 2 to 3, the connection pipe 13, the pump 14 and the return pipe 15 are located outside the tank 1, the connection pipe 13 communicates with the lower chamber 17, the inlet of the pump 14 is connected to the connection pipe 13, and the outlet is connected to the return pipe 15. The pump 14 is used for conveying the material in the lower chamber 17 to the stirring and liquid discharging mechanism, the stirring and liquid discharging mechanism is used for stirring the material in the upper chamber 16 and is used for conveying the material in the return pipe 15 back to the upper chamber 16. The driving mechanism is used for driving the stirring liquid outlet mechanism to stir.
Referring to fig. 2-3, preferably, the agitation and draining mechanism comprises a central pipe 91 and an agitation pipe 92. The center of the top of the filter screen 7 is provided with a slot 10, the central tube 91 is positioned in the middle of the tank body 1, the lower end of the central tube is inserted into the slot 10, and the upper end of the central tube passes through the cover plate 12 and extends upwards. The central tube 91 is a vertical tube and has an open end at its upper end and a closed end at its lower end. The stirred tube 92 is fixed at the outer surface of center tube 91 and is coaxially rotated with center tube 91 and set up, and stirred tube 92 is equidistant from top to bottom and is provided with a plurality ofly, and stirred tube 92 of same level is provided with two, and two stirred tubes 92 are located the relative both sides of center tube 91 respectively. One end of the stirring pipe 92 is fixed to the central pipe 91, the other end of the stirring pipe is close to the inner wall of the upper chamber 16, the end of the stirring pipe is a closed end, and the stirring pipe 92 is a round pipe and is communicated with the central pipe 91. A plurality of circular through holes 93 are formed in the central pipe 91 and the stirring pipe 92 respectively to communicate the central pipe 91, the stirring pipe 92 and the upper chamber 16, so that the refluxed leaching solution flows into the upper chamber 16 through the through holes 93. The return pipe 15 is connected at one end to the pump 14 and at the other end inserted into the central pipe 91 from the upper end of the central pipe 91.
In the above technical scheme, after the pump 14 is started, the leaching liquor in the tank body 1 sequentially passes through the connecting pipe 13, the pump 14 and the return pipe 15 and enters the central pipe 91, and because the central pipe 91 is positioned in the upper chamber 16 and the central pipe 91 is communicated with the stirring pipe 92, the leaching liquor refluxed into the central pipe 91 is refluxed into the upper chamber 16 again through the central pipe 91 and the through holes 93 on the stirring pipe 92, so that a leaching liquor circulating and refluxing process can be formed, the transfer of the solvent is accelerated, so that the antrodia camphorata is fully contacted with the solvent, and the leaching rate and the product quality are improved.
Referring to fig. 2 to 3, the driving mechanism includes a motor 81, a driving gear 82, a support platform 83, a driven gear 84, and a connecting shaft. The supporting platform 83 is fixed on the top of the cover plate 12, the motor 81 is installed on the supporting platform 83, and the central axis of the driving gear 82 is parallel to the central axis of the central tube 91. The driving gear 82 and the driven gear 84 are both contacted with the top surface of the cover plate 12, the upper end of the connecting shaft is connected with an output shaft of the motor 81, the lower end of the connecting shaft penetrates through the center of the driving gear 82 and is inserted into the cover plate 12, and the driving gear 82 is fixed on the connecting shaft. The driven gear 84 is engaged with the driving gear 82, and the driving gear 82 is sleeved on the central tube 91 and fixed with the central tube 91. An eccentric block 94 is fixed to the center tube 91 in the axial direction, and the eccentric block 94 is located below the center tube 91 and below the agitation tube 92.
In above-mentioned technical scheme, when motor 81 started, the connecting axle will drive driving gear 82 and rotate, because driving gear 82 and driven gear 84 meshing set up, and driven gear 84 fixes on center tube 91, therefore when driving gear 82 rotated, driven gear 84 will drive center tube 91 and rotate. Since the return pipe 15 is inserted downwards from the upper end of the central pipe 91, it will not interfere with the rotation of the central pipe 91, so the central pipe 91 can drive the stirring pipe 92 to rotate, so as to stir the materials. In the rotation process of the central tube 91 and the stirring tube 92, the leaching solution flows back through the through holes 93, so that the leaching solution can flow into the upper chamber 16 from each position, the contact area between the antrodia camphorata and the solvent is increased, and the leaching effect is better. The eccentric block 94 is arranged, so that when the central tube 91 rotates, the tank body 1 vibrates to prevent the dregs from blocking the filter screen.
Referring to fig. 2 to 3, a jacket 2 is provided on an outer surface of a tank body 1, and a heat medium inlet 3 and a heat medium outlet 4 are provided on the jacket 2. The heat medium inlet 3 is positioned at one side of the lower part of the tank body 1, and the heat medium outlet 4 is positioned at one side of the upper part of the tank body 1. The heat medium inlet 3 is used for the heat medium to enter, and the heat medium outlet 4 is used for the heat medium to flow out, and the heat medium is hot water or steam, preferably, the heat medium is hot water.
In the technical scheme, the leaching temperature is convenient to control, so that the antrodia camphorata is leached at a proper temperature, and the leaching efficiency is accelerated.
Example 2: the difference between the method for extracting the antrodia camphorata essential oil and the embodiment 1 is that the method for extracting the antrodia camphorata essential oil comprises the following steps:
s1, pretreatment: cleaning Antrodia camphorata, airing, and drying for 2 hours at 60 ℃ through a drying oven for later use;
s2, leaching: putting the pretreated antrodia camphorata into a leaching tank, leaching for 8 hours at 60 ℃, and filtering out dregs of a decoction to obtain a leaching solution;
s3, concentrating and drying: concentrating the leaching solution, and spray drying to obtain Antrodia camphorata micro powder;
s4, preparing antrodia camphorata essential oil: putting the antrodia camphorata micro powder into a supercritical fluid extraction kettle, and extracting for 60min under the conditions that the extraction pressure is 32MPa and the extraction temperature is 42 ℃ to obtain the antrodia camphorata essential oil.
Example 3: the difference between the method for extracting the antrodia camphorata essential oil and the embodiment 1 is that the method for extracting the antrodia camphorata essential oil comprises the following steps:
s1, pretreatment: cleaning Antrodia camphorata, airing, and drying for 1h at 80 ℃ through a drying oven for later use;
s2, leaching: putting the pretreated antrodia camphorata into a leaching tank, leaching for 4 hours at 80 ℃, and filtering out dregs of a decoction to obtain a leaching solution;
s3, concentrating and drying: concentrating the leaching solution, and spray drying to obtain Antrodia camphorata micro powder;
s4, preparing antrodia camphorata essential oil: putting the antrodia camphorata micro powder into a supercritical fluid extraction kettle, and extracting for 50min under the conditions that the extraction pressure is 40MPa and the extraction temperature is 47 ℃ to obtain the antrodia camphorata essential oil.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several improvements and modifications without departing from the principle of the present invention will occur to those skilled in the art, and such improvements and modifications should also be construed as within the scope of the present invention.
Claims (10)
1. The extraction method of the antrodia camphorata essential oil is characterized by comprising the following steps: the method comprises the following steps:
s1, pretreatment: cleaning Antrodia camphorata, drying in the air, and drying in an oven at 60-80 deg.C for 1-2 hr;
s2, leaching: putting the pretreated antrodia camphorata into an extraction tank, extracting for 4-8h at 60-80 ℃, and filtering out dregs to obtain an extract;
s3, concentrating and drying: concentrating the leaching solution, and spray drying to obtain Antrodia camphorata micro powder;
s4, preparing antrodia camphorata essential oil: and (3) putting the antrodia cinnamomea micro powder into a supercritical fluid extraction kettle, and extracting to obtain the antrodia cinnamomea essential oil.
2. The method for extracting Antrodia camphorata essential oil according to claim 1, which is characterized in that: the extraction pressure of the supercritical fluid extraction kettle is 32-40MPa, the extraction temperature is 42-47 ℃, and the extraction time is 50-60 min.
3. The method for extracting Antrodia camphorata essential oil according to claim 1, which is characterized in that: in step S2, the leaching tank includes a tank body (1), a driving mechanism, a stirring liquid outlet mechanism, a filter screen (7), a connecting pipe (13), a pump (14) and a return pipe (15);
the top of the tank body (1) is covered with a cover plate (12), a feeding hole (11) is formed in the cover plate (12), an upper chamber (16) and a lower chamber (17) are arranged in the tank body (1), a filter screen (7) is arranged between the upper chamber (16) and the lower chamber (17), the filter screen (7) is fixed below the inner part of the tank body (1), a leaching liquor outlet (6) is formed in the bottom of the tank body (1), a medicine residue outlet (5) is formed in the side part of the tank body, and the medicine residue outlet (5) is located in the upper chamber (16);
the connecting pipe (13) is communicated with the lower chamber (17), an inlet of the pump (14) is connected with the connecting pipe (13), an outlet of the pump is connected with the return pipe (15), the pump (14) is used for conveying materials in the lower chamber (17) to the stirring liquid outlet mechanism, the stirring liquid outlet mechanism is used for stirring the materials in the upper chamber (16) and sending the materials in the return pipe (15) back to the upper chamber (16), and the driving mechanism is used for driving the stirring liquid outlet mechanism to stir.
4. The method for extracting Antrodia camphorata essential oil according to claim 3, which is characterized in that: the stirring liquid outlet mechanism comprises a central pipe (91) and a stirring pipe (92), a slot (10) is formed in the top of the filter screen (7), the central pipe (91) is located in the middle of the tank body (1), the lower end of the central pipe is inserted into the slot (10), the upper end of the central pipe penetrates through the cover plate (12) and extends upwards, the upper end of the central pipe (91) is an open end, and the lower end of the central pipe is a closed end;
the stirring pipe (92) is fixed on the outer surface of the central pipe (91) and is coaxially and rotatably arranged with the central pipe (91), one end of the stirring pipe (92) is fixed with the central pipe (91), the other end of the stirring pipe is close to the inner wall of the upper chamber (16), and the stirring pipe (92) is communicated with the central pipe (91);
through holes (93) are formed in the central pipe (91) and the stirring pipe (92), one end of the return pipe (15) is connected with the pump (14), and the other end of the return pipe is inserted into the central pipe (91) from the upper end of the central pipe (91).
5. The method for extracting Antrodia camphorata essential oil according to claim 4, which is characterized in that: the driving mechanism comprises a motor (81), a driving gear (82), a supporting platform (83), a driven gear (84) and a connecting shaft;
the supporting platform (83) is fixed on the cover plate (12), the motor (81) is installed on the supporting platform (83), the central axis of the driving gear (82) is parallel to the central axis of the central tube (91), the driving gear (82) and the driven gear (84) are both contacted with the top surface of the cover plate (12), the upper end of the connecting shaft is connected with an output shaft of the motor (81), the lower end of the connecting shaft penetrates through the center of the driving gear (82) and is inserted in the cover plate (12), and the driving gear (82) is fixed on the connecting shaft;
driven gear (84) with driving gear (82) meshing sets up, driving gear (82) cover is established on center tube (91) and with center tube (91) are fixed.
6. The method for extracting Antrodia camphorata essential oil according to claim 4, which is characterized in that: the filter screen (7) is arranged in an inclined mode, and the medicine dreg outlet (5) is located on one side of the lower portion of the upper cavity (16) and close to the lowest position of the filter screen (7).
7. The method for extracting Antrodia camphorata essential oil according to claim 3, which is characterized in that: one end of the medicine residue outlet (5) is fixed on the tank body (1), and the other end of the medicine residue outlet is downwards inclined towards the direction far away from the tank body (1).
8. The method for extracting Antrodia camphorata essential oil according to claim 3, which is characterized in that: the outer surface of the tank body (1) is provided with a jacket (2), the jacket (2) is provided with a heat medium inlet (3) and a heat medium outlet (4), the heat medium inlet (3) is positioned on one side of the lower part of the tank body (1), and the heat medium outlet (4) is positioned on one side of the upper part of the tank body (1).
9. The method for extracting Antrodia camphorata essential oil according to claim 8, which is characterized in that: the heat medium inlet (3) is used for the heat medium to enter, the heat medium outlet (4) is used for the heat medium to flow out, and the heat medium is hot water or steam.
10. The method for extracting Antrodia camphorata essential oil according to claim 3, which is characterized in that: an eccentric block (94) is axially fixed on the central pipe (91), and the eccentric block (94) is positioned at the lower part of the central pipe (91) and below the stirring pipe (92).
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