Ganoderma lucidum oil preparation method and equipment

Abstract

The invention relates to the technical field of ganoderma lucidum oil preparation, and provides a ganoderma lucidum oil preparation method and equipment, and the method comprises the following steps: adding ganoderma lucidum particles into a supercritical CO2 extraction kettle under the conditions that the extraction pressure is 30 MPa, the temperature is 40-60 DEG C, the carbon dioxide flow is 300-600 L / h, and the extraction time is 2.5-4 hours, then adding the ganoderma lucidum particles into a first-stage separation tank for first-stage separation, the pressure of a first-stage separation instrument is 9-12 MPa, and the pressure of a second-stage separation instrument is 9-12 MPa; the temperature is 40-60 DEG C and the time is 0.5-1 hour, adding the mixture into a second-stage separation tank for second-stage separation after finishing, adding the mixture into a third-stage separation tank for third-stage separation after finishing, the pressure of a third-stage separation instrument is atmospheric pressure, the temperature is 40-60 DEG C, and the standing time is 2-4 days; the method has the beneficial effects that a supercritical CO2 extraction method is adopted, the oil extraction rate and quality of ganoderma lucidum oil extraction are improved through high-flow CO2, the operation is simple, purified water is adopted as an adhesive, the method is safer, and damage to ganoderma lucidum components due to addition of other adhesives is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of ganoderma lucidum oil preparation, and particularly relates to a ganoderma lucidum oil preparation method and equipment. Background Art

[0002] Most of the fruiting bodies of Ganoderma lucidum are annual, and a few are perennial, containing oil droplets. Ganoderma lucidum oil is a lipid active substance extracted from Ganoderma lucidum seeds. Usually, 1g of Ganoderma lucidum oil can be extracted from every 20g of Ganoderma lucidum powder. Ganoderma lucidum oil is enriched with triterpenoid ganoderic acid, unsaturated fatty acids, organic germanium, Ganoderma lucidum polysaccharides and other effective ingredients in Ganoderma lucidum seeds. It is a collection of effective ingredients in Ganoderma lucidum seeds and has health effects such as anti-tumor and immune regulation, lowering blood lipids, and protecting the liver.

[0003] Patent CN1094766C discloses a supercritical CO2 extraction and processing method for Ganoderma lucidum spore oil, which involves granulating a mixture of Ganoderma lucidum spores and water, gelatin or starch as a binder and then subjecting it to supercritical extraction. However, Ganoderma lucidum seeds still contain abundant Ganoderma lucidum oil. When Ganoderma lucidum seeds are used as raw materials to extract Ganoderma lucidum oil, the specific extraction pressure and CO2 flow rate range are wide, so that in production, high-purity Ganoderma lucidum oil cannot be quickly obtained, and the extraction time is long and the oil yield is low. Summary of the invention

[0004] In view of this, the present invention provides a method and equipment for preparing ganoderma oil, which adopts a supercritical CO2 extraction method to improve the oil yield and quality of ganoderma oil extraction through high-flow CO2. The operation is simple and purified water is used as an adhesive, which is safer and prevents the damage to ganoderma components caused by adding other adhesives.

[0005] The technical solution is as follows: A method and equipment for preparing ganoderma lucidum oil, characterized by comprising: (1) Fine grinding: Ganoderma lucidum fruiting bodies that meet national standards are crushed by a crushing device to obtain powdered Ganoderma lucidum powder; (2) Granulation: Add purified water as a binder to the Ganoderma lucidum powder, mix thoroughly to form a soft material, and make the soft material into Ganoderma lucidum granules and store them in a clean stainless steel tank. The mass ratio of the Ganoderma lucidum powder to purified water is 1: (0.25-0.35), and the Ganoderma lucidum granules are between 25-45 meshes; (3) Extraction: Add the Ganoderma lucidum particles into a supercritical CO2 extraction kettle, the extraction pressure is 30MPa, the temperature is 40-60°C, the carbon dioxide flow rate is 300-600L / h, the extraction time is 2.5-4 hours, and then add it into a primary separation tank for primary separation, the primary separation pressure is 9-12MPa, the temperature is 40-60°C, the time is 0.5-1 hour, after the end, add it into a secondary separation tank for secondary separation, the secondary separation pressure is 4-5MPa, the temperature is 40-60°C, the time is 0.5-1 hour, after the end, add it into a tertiary separation tank for tertiary separation, the tertiary separation pressure is atmospheric pressure, the temperature is 40°C, and the standing time is 2-4 days; (4) Packaging: Place the Ganoderma lucidum oil extracted from the three-stage separation tank into a clean packaging barrel for packaging.

[0006] During use, the above technical solution adopts supercritical CO2 extraction method to improve the oil yield and quality of Ganoderma lucidum oil extraction through high-flow CO2. The operation is simple and purified water is used as an adhesive, which is safer and prevents damage to Ganoderma lucidum components caused by adding other adhesives.

[0007] Preferably, the pulverizing equipment adopts a freezing embrittlement breaking method, after vacuum drying the Ganoderma lucidum, embrittle it at -20°C for 2-4 hours, and then breaks the wall by ultrasonic mixing to obtain Ganoderma lucidum powder.

[0008] Preferably, the mass ratio of the ganoderma lucidum powder to purified water is 1:0.3, and the ganoderma lucidum particles are screened through a sieve with a mesh size of 30-40.

[0009] Preferably, in the supercritical CO2 extraction kettle, the extraction pressure is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 450L / h, the extraction time is 3 hours, and then it is added to the primary separation tank for primary separation, the primary separation pressure is 10MPa, the temperature is 50°C, and the time is 0.7 hour. After the end, it is added to the secondary separation tank for secondary separation, the secondary separation pressure is 4.5MPa, the temperature is 50°C, and the time is 0.5 hour.

[0010] Preferably, in step (2), vitamin E powder is added to the ganoderma lucidum powder in a mass ratio of 10:0.5 before granulation.

[0011] During use of the above technical solution: vitamin E powder is added to reduce the oxidation of effective ingredients in the process of pulverizing ganoderma lucidum powder, thereby improving the oil yield and purity of ganoderma lucidum oil.

[0012] Preferably, the Ganoderma lucidum particles are added into a supercritical CO2 extraction kettle for secondary extraction, and the supercritical CO2 extraction kettle comprises an extraction kettle I and an extraction kettle II. The extraction pressure in the extraction kettle I is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 400L / h, and the extraction time is 2 hours. The extraction pressure in the extraction kettle II is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 600L / h, and the extraction time is 1 hour.

[0013] During use, the above technical solution adopts two large-flow CO2 supercritical extractions to further improve the oil yield and purity, and improve the storage stability and storage time of Ganoderma lucidum oil.

[0014] Ganoderma lucidum oil preparation equipment includes a CO2 gas source, a filter, a condenser, a storage tank, a main pump, a mixer, extraction I, separation I, separation II, separation III, a switch valve (V1-V28), a barrel / automatic control valve, and a pneumatic regulating valve. The storage tank is connected to the CO2 gas source through the condenser and the filter, a main pump is arranged between the mixer and the storage tank, the mixer is connected to extraction I, the extraction I is connected to separation I, the separation I is connected to separation II, and the separation II is connected to separation III.

[0015] Preferably, the barrel is filled with Ganoderma lucidum particles, and the barrel is loaded into extraction I, the switch valves (V1-V28) are all closed, the switch valve V1 is opened to allow the CO2 gas source to flow into the filter, the valves before and after the condenser are opened to allow CO2 to flow into the condenser and the storage tank, the valves before and after the main pump are opened to allow CO2 to flow into the main pump and the mixer, the switch valve V10 is opened to allow extraction I and the barrel to be simultaneously inlet, the switch valve V5 is slowly opened to allow CO2 gas to slowly enter extraction I, and when the pressure of extraction I is the same as the pressure of the storage tank, the switch valve V5 is fully opened, the switch valves V11 and V13 are slowly opened to exhaust the air in extraction I, and then the switch valves V11 and V13 are closed, the switch valves V14 and V24 are opened to allow CO2 to flow into separation I, the switch valve V26 is opened to allow CO2 to flow into separation II, the switch valve V28 is slowly opened to allow CO2 to flow into separation III, and the switch valve V27 is opened, and the pressure of separation III does not need to be adjusted; After the pressure is balanced, close the switch valves V24 and V26, use the automatic control valve to control the pressure of extraction I and separation I and II, turn on the CO2 pump, and the pneumatic regulating valve automatically controls the extraction pressure. After the extraction pressure reaches the extraction value, the CO2 in the supercritical state dissolved with the extract flows into separation I, and the pneumatic regulating valve automatically controls the pressure of separation 1. CO2 enters separation II. The pressure of separation III does not need to be adjusted. CO2 enters the front end of the system to start circulating extraction. After 2.5-4 hours of extraction, close the switch valve V10.

[0016] Preferably, after the extraction I is finished, the main pump is stopped first, the switch valves V5 and V14 are closed, the switch valves V10 and V19 are opened, and the switch valve V11 is slowly opened to allow the high-pressure CO2 in the extraction I to slowly release the pressure from the separation III. When the pressure stops dropping, the switch valve V19 is closed, and the switch valve V3 is opened, and the CO2 in the extraction I enters the oil-gas separator, and then the recovery pump is started. When the pressure of the extraction I drops below 0.8MPa, the recovery pump stops working, the switch valve V3 is closed, and the switch valve V13 is slowly opened to vent the remaining gas in the extraction I.

[0017] During use, the above technical solution can reduce energy consumption by continuously recovering and recycling CO2, and further improve oil yield and purity.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are: 1. The supercritical CO2 extraction method is used to improve the oil yield and quality of Ganoderma lucidum oil extraction through high-flow CO2. The operation is simple and purified water is used as an adhesive, which is safer and prevents the damage to Ganoderma lucidum components caused by adding other adhesives; 2. Add vitamin E powder to reduce the oxidation of active ingredients in the process of Ganoderma lucidum powder crushing, and improve the oil yield and purity of Ganoderma lucidum oil; 3. Use two large-flow CO2 supercritical extractions to further improve the oil yield and purity, and improve the storage stability and storage time of Ganoderma lucidum oil; 4. By continuously recovering and recycling CO2, energy consumption can be reduced and the oil yield and purity can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 The extraction I CO2 operation flow chart of the present invention; Figure 2 This is the extraction I CO2 recovery flow chart of the present invention; DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The invention purchases ganoderma lucidum fruiting bodies according to the national standard of ganoderma lucidum fruiting bodies, and tests the moisture, ash content and sensory organs of each batch, and puts them into storage for use after they are qualified. Example

[0023] A method and equipment for preparing ganoderma lucidum oil, comprising: (1) Fine grinding: Ganoderma lucidum fruiting bodies that meet national standards are crushed by a crushing device to obtain powdered Ganoderma lucidum powder; (2) Granulation: Add purified water as a binder to the Ganoderma lucidum powder, mix thoroughly to form a soft material, and make the soft material into Ganoderma lucidum granules and store them in a clean stainless steel tank. The mass ratio of the Ganoderma lucidum powder to purified water is 1:0.25, and the Ganoderma lucidum granules are between 25-30 meshes. (3) Extraction: Add the Ganoderma lucidum particles into a supercritical CO2 extraction kettle, the extraction pressure is 30MPa, the temperature is 40°C, the carbon dioxide flow rate is 300L / h, the extraction time is 4 hours, and then add it into a primary separation tank for primary separation, the primary separation pressure is 9MPa, the temperature is 40°C, the time is 0.6 hour, after the end, add it into a secondary separation tank for secondary separation, the secondary separation pressure is 4.5MPa, the temperature is 40°C, and the time is 0.6 hour; (4) Packaging: Place the Ganoderma lucidum oil extracted from the three-stage separation tank into a clean packaging barrel for packaging.

[0024] The crushing equipment adopts a freezing embrittlement and wall breaking method to embrittle the ganoderma lucidum for 2-4 hours at -20°C after vacuum drying, and then mixes and breaks the wall by ultrasonic wave to obtain ganoderma lucidum powder. Example

[0025] On the basis of Example 1, the mass ratio of the ganoderma lucidum powder to purified water is 1:0.3, and the ganoderma lucidum particles are screened through a sieve with a mesh size of 30-40.

[0026] In the supercritical CO2 extraction kettle, the extraction pressure is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 450L / h, the extraction time is 3 hours, and then it is added to the primary separation tank for primary separation. The primary separation pressure is 10MPa, the temperature is 50°C, and the time is 0.7 hour. After the end, it is added to the secondary separation tank for secondary separation. The secondary separation pressure is 4.5MPa, the temperature is 50°C, and the time is 0.5 hour. Example

[0027] On the basis of Example 1: the mass ratio of the Ganoderma lucidum powder: purified water is 1:0.3, and the Ganoderma lucidum particles are screened with a sieve of 30-40 mesh, the extraction pressure in the supercritical CO2 extraction kettle is 30MPa, the temperature is: 50°C, the carbon dioxide flow rate is 600L / h, the extraction time is 2 hours, and then added to the primary separation tank for primary separation, the primary separation pressure is 12MPa, the temperature is 50°C, the time is 0.7 hour, and then added to the secondary separation tank for secondary separation, the secondary separation pressure is 5MPa, the temperature is 50°C, and the time is 0.5 hour. Example

[0028] On the basis of Example 1: the mass ratio of the Ganoderma lucidum powder: purified water is 1:0.35, and the Ganoderma lucidum particles are screened with a sieve of 30-40 mesh, the extraction pressure in the supercritical CO2 extraction kettle is 30MPa, the temperature is: 60°C, the carbon dioxide flow rate is 500L / h, the extraction time is 3 hours, and then added to the primary separation tank for primary separation, the primary separation pressure is 11MPa, the temperature is 50°C, the time is 0.7 hour, and then added to the secondary separation tank for secondary separation, the secondary separation pressure is 5MPa, the temperature is 50°C, and the time is 0.5 hour. Example

[0029] On the basis of Example 1, in step (2), vitamin E powder is added to the ganoderma lucidum powder in a mass ratio of 10:0.5 before granulation. Example

[0030] On the basis of Example 1, the Ganoderma lucidum particles are added into a supercritical CO2 extraction kettle for secondary extraction. The supercritical CO2 extraction kettle includes an extraction kettle I and an extraction kettle II. The extraction pressure in the extraction kettle I is 30 MPa, the temperature is 50°C, the carbon dioxide flow rate is 400 L / h, and the extraction time is 2 hours. The extraction pressure in the extraction kettle II is 30 MPa, the temperature is 50°C, the carbon dioxide flow rate is 600 L / h, and the extraction time is 1 hour. Example

[0031] On the basis of Example 1: after completion, the mixture is added into a three-stage separation tank for three-stage separation, wherein the pressure of the three-stage separation tank is atmospheric pressure, the temperature is 40° C., and the standing time is 2-4 days.

[0032] Control group 1 The ganoderma lucidum fruiting bodies that meet the national standards are crushed by a crushing device to obtain powdered ganoderma lucidum powder, the ganoderma lucidum powder is added with purified water as a binder, and the mixture is fully mixed to form a soft material, and the soft material is made into ganoderma lucidum particles and stored in a clean stainless steel tank, wherein the mass ratio of the ganoderma lucidum powder to purified water is 1:0.25, and the ganoderma lucidum particles are between 25-30 meshes; Add the Ganoderma lucidum particles into a supercritical CO2 extraction kettle with an extraction pressure of 20MPa, a temperature of 40°C, a carbon dioxide flow rate of 20L / h, and an extraction time of 2 hours. Then add them into a primary separation tank for primary separation with a pressure of 5MPa, a temperature of 40°C, and a time of 0.6 hour. After the separation, add them into a secondary separation tank for secondary separation with a pressure of 4.5MPa, a temperature of 40°C, and a time of 0.6 hour.

[0033] Control group 2 On the basis of control group 1, Ganoderma lucidum particles were added into a supercritical CO2 extraction kettle, the extraction pressure was 30MPa, the temperature was 40°C, the carbon dioxide flow rate was 50L / h, the extraction time was 3 hours, and then added into a primary separation tank for primary separation, the primary separation pressure was 9MPa, the temperature was 40°C, the time was 0.6 hour, and then added into a secondary separation tank for secondary separation, the secondary separation pressure was 4.5MPa, the temperature was 40°C, and the time was 0.6 hour.

[0034] Control group 3 In the background technology, the preparation method in the comparative document is adopted. Ganoderma lucidum oil preparation equipment, such as Figure 1 and Figure 2 As shown, it includes a CO2 gas source, a filter, a condenser, a storage tank, a main pump, a mixer, extraction I, separation I, separation II, separation III, a switch valve (V1-V28), a barrel / automatic control valve, and a pneumatic regulating valve. The storage tank is connected to the CO2 gas source through the condenser and the filter. A main pump is arranged between the mixer and the storage tank. The mixer is connected to extraction I, the extraction I is connected to separation I, the separation I is connected to separation II, and the separation II is connected to separation III.

[0035] The barrel is filled with Ganoderma lucidum particles, and the barrel is loaded into the extraction I. The switch valves (V1-V28) are all closed, the switch valve V1 is opened to allow the CO2 gas source to flow into the filter, the valves before and after the condenser are opened to allow the CO2 to flow into the condenser and the storage tank, the valves before and after the main pump are opened to allow the CO2 to flow into the main pump and the mixer, the switch valve V10 is opened to allow the extraction I and the barrel to be simultaneously inlet, the switch valve V5 is slowly opened to allow the CO2 gas to slowly enter the extraction I, and when the pressure of the extraction I is the same as the pressure of the storage tank, the switch valve V5 is fully opened, the switch valves V11 and V13 are slowly opened to exhaust the air in the extraction I, and then the switch valves V11 and V13 are closed, the switch valves V14 and V24 are opened to allow the CO2 to flow into the separation I, the switch valve V26 is opened to allow the CO2 to flow into the separation II, the switch valve V28 is slowly opened to allow the CO2 to flow into the separation III, and the switch valve V27 is opened. The pressure of the separation III does not need to be adjusted; After the pressure is balanced, close the switch valves V24 and V26, use the automatic control valve to control the pressure of extraction I and separation I and II, turn on the CO2 pump, and the pneumatic regulating valve automatically controls the extraction pressure. After the extraction pressure reaches the extraction value, the CO2 in the supercritical state dissolved with the extract flows into separation I, and the pneumatic regulating valve automatically controls the pressure of separation 1. CO2 enters separation II. The pressure of separation III does not need to be adjusted. CO2 enters the front end of the system to start circulating extraction. After 2.5-4 hours of extraction, close the switch valve V10.

[0036] After the extraction I is finished, stop the main pump first, close the switch valves V5 and V14, open the switch valves V10 and V19, slowly open the switch valve V11 to allow the high-pressure CO2 in the extraction I to slowly release the pressure from the separation III, and when the pressure stops dropping, close the switch valve V19, open the switch valve V3, and the CO2 in the extraction I enters the oil-gas separator, and then start the recovery pump. When the pressure of the extraction I drops below 0.8MPa, the recovery pump stops working, close the switch valve V3, and slowly open the switch valve V13 to vent the remaining gas in the extraction I.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preparing ganoderma lucidum oil, characterized in that include: (1) Fine grinding: Ganoderma lucidum fruiting bodies that meet national standards are crushed by a crushing device to obtain powdered Ganoderma lucidum powder; (2) Granulation: Add purified water as a binder to the Ganoderma lucidum powder, mix thoroughly to form a soft material, and make the soft material into Ganoderma lucidum granules and store them in a clean stainless steel tank. The mass ratio of the Ganoderma lucidum powder to purified water is 1: (0.25-0.35), and the Ganoderma lucidum granules are between 25-45 meshes; (3) Extraction: Add the Ganoderma lucidum particles into a supercritical CO2 extraction kettle, the extraction pressure is 30MPa, the temperature is 40-60°C, the carbon dioxide flow rate is 300-600L / h, the extraction time is 2.5-4 hours, and then add it into a primary separation tank for primary separation, the primary separation pressure is 9-12MPa, the temperature is 40-60°C, the time is 0.5-1 hour, after the end, add it into a secondary separation tank for secondary separation, the secondary separation pressure is 4-5MPa, the temperature is 40-60°C, the time is 0.5-1 hour, after the end, add it into a tertiary separation tank for tertiary separation, the tertiary separation pressure is atmospheric pressure, the temperature is 40°C, and the standing time is 2-4 days; (4) Packaging: Place the Ganoderma lucidum oil extracted from the three-stage separation tank into a clean packaging barrel for packaging.

2. The method for preparing ganoderma lucidum oil according to claim 1, characterized in that: The crushing equipment adopts a freezing embrittlement and wall breaking method to embrittle the ganoderma lucidum for 2-4 hours at -20°C after vacuum drying, and then mixes and breaks the wall by ultrasonic wave to obtain ganoderma lucidum powder.

3. The method for preparing ganoderma lucidum oil according to claim 2, characterized in that: The mass ratio of the ganoderma lucidum powder to purified water is 1:0.3, and the ganoderma lucidum particles are screened through a sieve with a mesh size of 30-40.

4. The method for preparing ganoderma lucidum oil according to claim 3, characterized in that: In the supercritical CO2 extraction kettle, the extraction pressure is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 450L / h, the extraction time is 3 hours, and then it is added to the primary separation tank for primary separation. The primary separation pressure is 10MPa, the temperature is 50°C, and the time is 0.7 hour. After the end, it is added to the secondary separation tank for secondary separation. The secondary separation pressure is 4.5MPa, the temperature is 50°C, and the time is 0.5 hour.

5. A method for preparing ganoderma lucidum oil according to any one of claims 1 to 4, characterized in that: In step (2), vitamin E powder is added to the ganoderma lucidum powder in a mass ratio of 10:0.5 before granulation.

6. A method for preparing ganoderma lucidum oil according to any one of claims 1 to 4, characterized in that: The ganoderma lucidum particles are added into a supercritical CO2 extraction kettle for secondary extraction. The supercritical CO2 extraction kettle comprises an extraction kettle I and an extraction kettle II. The extraction pressure in the extraction kettle I is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 400L / h, and the extraction time is 2 hours. The extraction pressure in the extraction kettle II is 30MPa, the temperature is 50°C, the carbon dioxide flow rate is 600L / h, and the extraction time is 1 hour.

7. Ganoderma lucidum oil preparation equipment, characterized in that: A method for preparing ganoderma oil as described in any one of claims 1 to 6 is installed, comprising a CO2 gas source, a filter, a condenser, a storage tank, a main pump, a mixer, extraction I, separation I, separation II, separation III, a switch valve (V1-V28), a barrel / automatic control valve, and a pneumatic regulating valve. The storage tank is connected to the CO2 gas source through the condenser and the filter, a main pump is arranged between the mixer and the storage tank, the mixer is connected to extraction I, the extraction I is connected to separation I, the separation I is connected to separation II, and the separation II is connected to separation III.

8. The equipment for preparing ganoderma lucidum oil according to claim 7, characterized in that: The barrel is filled with Ganoderma lucidum particles, and the barrel is loaded into the extraction I. The switch valves (V1-V28) are all closed, the switch valve V1 is opened to allow the CO2 gas source to flow into the filter, the valves before and after the condenser are opened to allow the CO2 to flow into the condenser and the storage tank, the valves before and after the main pump are opened to allow the CO2 to flow into the main pump and the mixer, the switch valve V10 is opened to allow the extraction I and the barrel to be simultaneously inlet, the switch valve V5 is slowly opened to allow the CO2 gas to slowly enter the extraction I, and when the pressure of the extraction I is the same as the pressure of the storage tank, the switch valve V5 is fully opened, the switch valves V11 and V13 are slowly opened to exhaust the air in the extraction I, and then the switch valves V11 and V13 are closed, the switch valves V14 and V24 are opened to allow the CO2 to flow into the separation I, the switch valve V26 is opened to allow the CO2 to flow into the separation II, the switch valve V28 is slowly opened to allow the CO2 to flow into the separation III, and the switch valve V27 is opened. The pressure of the separation III does not need to be adjusted; After the pressure is balanced, close the switch valves V24 and V26, use the automatic control valve to control the pressure of extraction I and separation I and II, turn on the CO2 pump, and the pneumatic regulating valve automatically controls the extraction pressure. After the extraction pressure reaches the extraction value, the CO2 in the supercritical state dissolved with the extract flows into separation I, and the pneumatic regulating valve automatically controls the pressure of separation 1. CO2 enters separation II. The pressure of separation III does not need to be adjusted. CO2 enters the front end of the system to start circulating extraction. After 2.5-4 hours of extraction, close the switch valve V10.

9. The ganoderma lucidum oil preparation device according to claim 8, characterized in that: After the extraction I is finished, stop the main pump first, close the switch valves V5 and V14, open the switch valves V10 and V19, slowly open the switch valve V11 to allow the high-pressure CO2 in the extraction I to slowly release the pressure from the separation III, and when the pressure stops dropping, close the switch valve V19, open the switch valve V3, and the CO2 in the extraction I enters the oil-gas separator, and then start the recovery pump. When the pressure of the extraction I drops below 0.8MPa, the recovery pump stops working, close the switch valve V3, and slowly open the switch valve V13 to vent the remaining gas in the extraction I.

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