Separation and extraction system and method for preparing high-activity artemisia apiacea essential oil

Abstract

The invention provides a separation and extraction system for preparing high-activity artemisia apiacea essential oil and a method thereof, which are applied to the field of separation, extraction and preparation of artemisia apiacea. The system comprises a material distribution device, a crusher, an extraction device and a control module, according to the system, leaves and thick stems of artemisia apiacea can be recognized and split by arranging the material distributing device; according to the material distributing device, the separating roller unit is arranged to be matched with the fixing unit, and therefore the automatic splitting effect is achieved; by arranging the extraction device, different parts of sweet wormwood can be extracted by adopting different extraction schemes, so that high-activity sweet wormwood essential oil with different qualities is obtained; the extraction device improves the purity of the artemisia apiacea essential oil by adopting a secondary distillation mode.

Description

Technical Field

[0001] The invention relates to the field of separation, extraction and preparation of Artemisia annua, and in particular to a separation and extraction system and method for preparing highly active Artemisia annua essential oil. Background Art

[0002] Artemisinin is a sesquiterpene lactone compound containing a peroxide bridge extracted from the Asteraceae plant Artemisia annua, which has significant antimalarial effects.

[0003] In order to improve the extraction rate and purity of Artemisia annua essential oil, researchers have developed a variety of new extraction technologies, including supercritical fluid extraction, organic solvent extraction, steam distillation, etc. These methods improve the extraction efficiency and quality of Artemisia annua essential oil by optimizing the extraction process, but different parts of Artemisia annua can be extracted and prepared by different methods to obtain Artemisia annua essential oil of different qualities, so it is necessary to decompose and screen different parts of Artemisia annua before extraction. The existing pretreatment process is often completed by manual operation, resulting in low production efficiency and difficulty in achieving standard quality screening results, thus affecting the extraction and preparation quality of Artemisia annua. Summary of the invention

[0004] The purpose of the present invention is to address the existing deficiencies and propose a separation and extraction system and method for preparing highly active Artemisia annua essential oil.

[0005] In order to overcome the shortcomings of the prior art, the present invention adopts the following technical solutions:

[0006] A separation and extraction system for preparing highly active artemisia annua essential oil, comprising:

[0007] A material separation device, used for separating and screening the raw materials of Artemisia annua, so as to separate the thick stems and leaves of Artemisia annua;

[0008] A pulverizer, used for pulverizing the separated Artemisia annua respectively;

[0009] An extraction device, used for extracting and preparing artemisia annua essential oil;

[0010] A control module is communicatively connected with the material dividing device, the pulverizer and the extraction device;

[0011] The material separation device comprises a chassis and a feeding device and a separation device both arranged on the chassis, wherein the feeding device is used to control the amount of the Artemisia annua raw material supplied to the separation device, and the separation device is configured to separate the leaves and thick stems of Artemisia annua, and the chassis is provided with a feeding hopper and a material separation chamber;

[0012] The extraction device includes a distillation unit and a supercritical extraction unit, the distillation unit includes a first distillation kettle and a second distillation kettle, the output end of the first distillation kettle is connected to the input end of the second distillation kettle through a conduit, the distillation unit is configured to extract Artemisia annua leaf fragments through secondary distillation to prepare Artemisia annua essential oil, and the supercritical extraction unit is configured to extract Artemisia annua thick stem fragments through supercritical fluid.

[0013] The separation device includes a separation roller unit, a conveyor belt device, a fixing unit and a visual detection unit, all of which are arranged in the distribution chamber. The conveyor belt device is used to transport Artemisia annua. The visual detection unit is used to detect the morphology of Artemisia annua on the conveyor belt device. The separation roller unit is configured to provide separation traction force to Artemisia annua. The fixing unit is used to press and fix the Artemisia annua on the conveyor belt device. The visual detection unit is communicatively connected to the control module.

[0014] Furthermore, the feeding device includes a first mounting frame, a first driving motor, a first roller and a second roller. The first mounting frame is arranged at the outlet of the feed hopper. The first roller and the second roller are arranged side by side and rotatably on the first mounting frame. The first driving motor is fixedly arranged on the first mounting frame, and the first driving motor is respectively connected to the first roller and the second roller by transmission.

[0015] Furthermore, the separation roller unit includes a lifting mechanism, a second mounting frame, a third roller, and a second drive motor. The lifting mechanism is arranged on the material distribution chamber of the chassis and is connected to the second mounting frame. The lifting mechanism is used to adjust the height of the second mounting frame. The third roller is rotatably arranged on the second mounting frame. The second drive motor is arranged on the second mounting frame and is transmission-connected to the third roller.

[0016] Furthermore, the fixed unit includes a third drive motor, a crankshaft, a piston, a first mounting seat, a second mounting seat, a connecting rod, and a limit block. The first mounting seat and the second mounting seat are both connected to the chassis. The crankshaft is rotatably arranged on the first mounting seat. The third drive motor is arranged on the first mounting seat and is transmission-connected to the crankshaft. The piston is connected to the limit block through a connecting rod to form a pressing part. The pressing part is provided in multiple groups and is arranged in sequence on the crankshaft. The second mounting seat is provided with a slide groove matching the piston, and the cylinder end of the piston is slidably arranged in the slide groove.

[0017] Furthermore, the conveyor belt device is provided with a support platform at a position corresponding to the fixing unit and the separation roller unit, and the support platform is used to provide support to the conveyor belt when the fixing unit and the separation roller unit descend and contact the conveyor belt, so that the fixing unit and the separation roller unit can stably output separation and limit the fixing force.

[0018] Furthermore, the material dividing device further comprises a combing unit, and the combing unit is used to adjust the orientation of the Artemisia annua on the conveyor belt device;

[0019] An application method of a separation and extraction system for preparing highly active Artemisia annua essential oil, comprising:

[0020] S1, screening and separation, the material separation device is used to screen the Artemisia annua plants and separate the rhizomes and leaves;

[0021] S2, crushing, the leaves and the thick stems are crushed by a crusher to obtain leaf crushed materials and thick stem crushed materials respectively;

[0022] S3, first extraction, performing soaking and distillation extraction on the leaf fragments to obtain a first Artemisia annua essential oil;

[0023] The specific method of soaking extraction comprises: putting leaf crushed materials into a first distillation kettle, mixing with water for steaming, collecting evaporated essential oil through a condenser of the first distillation kettle, then inputting into a second distillation kettle through a conduit for secondary distillation, and then collecting through the condensation end of the second distillation kettle to obtain the first artemisia annua essential oil.

[0024] S4, second extraction, performing supercritical extraction on the thick stems to obtain a second Artemisia annua essential oil.

[0025] Supercritical fluid extraction uses the dissolving ability of supercritical fluids such as carbon dioxide under supercritical conditions to extract Artemisia annua essential oil.

[0026] The beneficial effects achieved by the present invention are:

[0027] This system can identify and separate the leaves and thick stems of Artemisia annua by setting up a material separation device;

[0028] The material separation device realizes the effect of automatic separation by setting a separation roller unit and a fixing unit;

[0029] By setting up the extraction device, different extraction schemes can be adopted to extract different parts of Artemisia annua, thereby obtaining highly active Artemisia annua essential oils of different qualities;

[0030] The extraction device improves the purity of the Artemisia annua essential oil by adopting a secondary distillation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0032] Figure 1 The present invention is a schematic diagram of the extraction and preparation process of Artemisia annua essential oil.

[0033] Figure 2 It is a schematic diagram of the internal structure of the material distribution device of the present invention.

[0034] Figure 3 It is a schematic diagram of the internal structure of another embodiment of the present invention.

[0035] Figure 4 It is a structural schematic diagram of the fixing unit of the present invention.

[0036] Figure 5 It is a schematic structural diagram of the separation roller unit of the present invention.

[0037] Figure 6 It is a schematic cross-sectional structural diagram of the second mounting seat of the present invention.

[0038] Figure 7 It is a schematic structural diagram of the distillation unit of the present invention.

[0039] In the figure: 1 a distributing device, 111 a feeding hopper, 112 a distributing chamber, 114 a guiding plate, 12 a feeding device, 121 a first roller, 122 a second roller, 13 a separating device, 131 a separating roller unit, 1311 a lifting mechanism, 1312 a second mounting frame, 1313 a third roller, 1314 a second driving motor, 132 a conveyor belt device, 1321 a supporting platform, 1322 a first discharging port, 1323 a second discharging port, 133 a fixing unit, 1331 a third driving motor, 1332 a crankshaft, 1333 a piston, 1334 a connecting rod, 1335 a limiting block, 134 a visual inspection unit, 14 a combing unit, 2 a pulverizer, 3 an extracting device, 31 a first distillation kettle, 32 a second distillation kettle. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail in conjunction with its embodiments below; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. For those skilled in the art, other systems, methods and / or features of this embodiment will become apparent after reviewing the following detailed description. It is intended that all such additional systems, methods, features and advantages are included in this specification, included within the scope of the present invention, and protected by the appended claims. Additional features of the disclosed embodiments are described in the following detailed description, and these features will be apparent from the following detailed description.

[0041] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] Embodiment 1.

[0043] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a separation and extraction system for preparing highly active Artemisia annua essential oil comprises:

[0044] The material separation device 1 is used to separate and screen the raw material of Artemisia annua, so as to separate the thick stems and leaves of Artemisia annua;

[0045] A crusher 2, for crushing the separated Artemisia annua respectively;

[0046] Extraction device 3, used for extracting and preparing artemisia annua essential oil;

[0047] A control module is communicatively connected with the material dividing device 1, the pulverizer 2 and the extraction device 3;

[0048] The material separation device 1 comprises a chassis and a feeding device 12 and a separation device 13 both arranged on the chassis, wherein the feeding device 12 is used to control the amount of the Artemisia annua raw material supplied to the separation device 13, and the separation device 13 is configured to separate the leaves and the thick stems of Artemisia annua. The chassis is provided with a feeding hopper 111 and a material separation chamber 112;

[0049] The separation device 13 includes a separation roller unit 131, a conveyor belt device 132, a fixing unit 133 and a visual detection unit 134, all of which are arranged in the distributing chamber 112. The conveyor belt device 132 is used to transport the Artemisia annua, and the visual detection unit 134 is used to detect the morphology of the Artemisia annua on the conveyor belt device 132. The separation roller unit 131 is configured to provide separation traction to the Artemisia annua, and the fixing unit 133 is used to press and fix the Artemisia annua on the conveyor belt device 132. The visual detection unit 134 is communicatively connected with the control module;

[0050] The feeding device 12 includes a first mounting frame, a first driving motor, a first rotating roller 121 and a second rotating roller 122. The first mounting frame is arranged at the outlet of the feeding hopper 111. The first rotating roller 121 and the second rotating roller 122 are arranged side by side and rotatably on the first mounting frame. The first driving motor is fixedly arranged on the first mounting frame, and the first driving motor is respectively connected to the first rotating roller 121 and the second rotating roller 122 by transmission.

[0051] The extraction device 3 includes a distillation unit and a supercritical extraction unit, the distillation unit includes a first distillation kettle 31 and a second distillation kettle 32, the output end of the first distillation kettle 31 is connected to the input end of the second distillation kettle 32 through a conduit, the distillation unit is configured to extract the Artemisia annua leaf fragments through secondary distillation to prepare Artemisia annua essential oil, and the supercritical extraction unit is configured to extract the Artemisia annua thick stem fragments through supercritical fluid.

[0052] The separation roller unit 131 includes a lifting mechanism 1311, a second mounting frame 1312, a third roller 1313, and a second driving motor 1314. The lifting mechanism 1311 is arranged on the material distribution chamber 112 of the chassis and is connected to the second mounting frame 1312. The lifting mechanism 1311 is used to adjust the height of the second mounting frame 1312. The third roller 1313 is rotatably arranged on the second mounting frame 1312. The second driving motor 1314 is arranged on the second mounting frame 1312 and is drivingly connected to the third roller 1313.

[0053] The fixing unit 133 includes a third driving motor 1331, a crankshaft 1332, a piston 1333, a first mounting seat, a second mounting seat, a connecting rod 1334, and a limit block 1335. The first mounting seat and the second mounting seat are both connected to the chassis. The crankshaft 1332 is rotatably arranged on the first mounting seat. The third driving motor 1331 is arranged on the first mounting seat and is transmission-connected to the crankshaft 1332. The piston 1333 is connected to the limit block 1335 through the connecting rod 1334 to form a pressing portion. The pressing portion is provided with multiple groups and arranged in sequence on the crankshaft 1332. The second mounting seat is provided with a slide groove matching the piston 1333, and the cylinder end of the piston 1333 is slidably arranged in the slide groove.

[0054] The conveyor belt device 132 is provided with a support platform 1321 at a position corresponding to the fixing unit 133 and the separation roller unit 131, and the support platform 1321 is used to provide support to the conveyor belt when the fixing unit 133 and the separation roller unit 131 are lowered and contact the conveyor belt, so that the fixing unit 133 and the separation roller unit 131 can stably output separation and limit the fixing force;

[0055] The material distribution device 1 further includes a combing unit 14, and the combing unit 14 is used to adjust the orientation of the Artemisia annua on the conveyor belt device 132;

[0056] Embodiment 2: This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the above technical features and is further described in detail:

[0057] A separation and extraction system for preparing highly active artemisia annua essential oil, comprising:

[0058] The material separation device 1 is used to separate and screen the raw material of Artemisia annua, so as to separate the thick stems and leaves of Artemisia annua;

[0059] A crusher 2, for crushing the separated Artemisia annua respectively;

[0060] Extraction device 3, used for extracting and preparing artemisia annua essential oil;

[0061] A control module is communicatively connected with the material dividing device 1, the pulverizer 2 and the extraction device 3;

[0062] The material separation device 1 comprises a chassis and a feeding device 12 and a separation device 13 both arranged on the chassis, wherein the feeding device 12 is used to control the amount of the Artemisia annua raw material supplied to the separation device 13, and the separation device 13 is configured to separate the leaves and the thick stems of Artemisia annua. The chassis is provided with a feeding hopper 111 and a material separation chamber 112;

[0063] The feeding device 12 includes a first mounting frame, a first driving motor, a first rotating roller 121 and a second rotating roller 122. The first mounting frame is arranged at the outlet of the feeding hopper 111. The first rotating roller 121 and the second rotating roller 122 are arranged side by side and rotatably on the first mounting frame. The first driving motor is fixedly arranged on the first mounting frame, and the first driving motor is respectively connected to the first rotating roller 121 and the second rotating roller 122 by transmission.

[0064] The gap between the first roller 121 and the second roller 122 is 2-4 cm;

[0065] The Artemisia annua can be fed in sequentially through the feeding device 12, and the deviated branches of the Artemisia annua can be broken and trimmed at the same time;

[0066] The separation device 13 includes a separation roller unit 131, a conveyor belt device 132, a fixing unit 133 and a visual detection unit 134, all of which are arranged in the distributing chamber 112. The conveyor belt device 132 is used to transport the Artemisia annua, and the visual detection unit 134 is used to detect the morphology of the Artemisia annua on the conveyor belt device 132. The separation roller unit 131 is configured to provide separation traction to the Artemisia annua, and the fixing unit 133 is used to press and fix the Artemisia annua on the conveyor belt device 132. The visual detection unit 134 is communicatively connected with the control module;

[0067] The separation roller unit 131 includes a lifting mechanism 1311, a second mounting frame 1312, a third roller 1313, and a second driving motor 1314. The lifting mechanism 1311 is arranged on the material distribution chamber 112 of the chassis and is connected to the second mounting frame 1312. The lifting mechanism 1311 is used to adjust the height of the second mounting frame 1312. The third roller 1313 is rotatably arranged on the second mounting frame 1312. The second driving motor 1314 is arranged on the second mounting frame 1312 and is drivingly connected to the third roller 1313.

[0068] The outer surface of the third rotating roller 1313 is made of polyurethane rubber material;

[0069] The fixing unit 133 includes a third driving motor 1331, a crankshaft 1332, a piston 1333, a first mounting seat, a second mounting seat, a connecting rod 1334, and a limit block 1335. The first mounting seat and the second mounting seat are both connected to the chassis. The crankshaft 1332 is rotatably arranged on the first mounting seat. The third driving motor 1331 is arranged on the first mounting seat and is transmission-connected to the crankshaft 1332. The piston 1333 is connected to the limit block 1335 through the connecting rod 1334 to form a pressing portion. The pressing portion is provided with multiple groups and arranged in sequence on the crankshaft 1332. The second mounting seat is provided with a slide groove matching the piston 1333, and the cylinder end of the piston 1333 is slidably arranged in the slide groove.

[0070] The conveyor belt device 132 is connected to the chassis, and the conveyor belt device 132 includes a conveyor belt and a first drive motor. The first drive motor is drivingly connected to the conveyor belt to drive the conveyor belt to operate;

[0071] The output end of the conveyor belt device 132 is respectively provided with a first discharge port 1322 and a second discharge port 1323, and the first discharge port 1322 and the second discharge port 1323 are separated by a guide plate 114;

[0072] The conveyor belt device 132 is provided with a support platform 1321 at a position corresponding to the fixing unit 133 and the separation roller unit 131, and the support platform 1321 is used to provide support to the conveyor belt when the fixing unit 133 and the separation roller unit 131 are lowered and contact the conveyor belt, so that the fixing unit 133 and the separation roller unit 131 can stably output separation and limit the fixing force;

[0073] The material distribution device 1 further includes a combing unit 14, and the combing unit 14 is used to adjust the orientation of the Artemisia annua on the conveyor belt device 132;

[0074] The combing unit 14 includes a lifting and adjusting frame and a brush, wherein the lifting and adjusting frame is arranged in the material distribution chamber 112 and above the conveyor belt, and the brush is arranged on the lifting and adjusting frame, and the bottom surface of the brush is arranged in an inclined shape;

[0075] By adjusting the distance between the brush and the conveyor belt, the brush can limit the rhizomes that are higher than the set height. As the conveyor belt is driven, the end with more leaves rotates toward the output end of the conveyor belt, and the rhizomes are continued to be dragged to make them separate. By setting the inclined brush, the thick stems can be separated from the brush more smoothly.

[0076] The extraction device 3 includes a distillation unit and a supercritical extraction unit, the distillation unit includes a first distillation kettle 31 and a second distillation kettle 32, the output end of the first distillation kettle 31 is connected to the input end of the second distillation kettle 32 through a conduit, the distillation unit is configured to extract the Artemisia annua leaf fragments to prepare the Artemisia annua essential oil through secondary distillation, and the supercritical extraction unit is configured to extract the Artemisia annua thick stem fragments through a supercritical fluid;

[0077] The first distillation kettle 31 and the second distillation kettle 32 are commonly used distillation kettle devices, which mainly include a kettle body, a condenser, and a heating device;

[0078] The pulverizer 2 can be a common pulverizing device, which is mainly used to pulverize the leaves and thick stems of Artemisia annua into small pieces. The specific structure and principle are not described here.

[0079] The system can identify and separate the leaves and thick stems of Artemisia annua by setting a dividing device 1; the dividing device 1 cooperates with the fixing unit 133 by setting a separation roller unit 131 to achieve the effect of automatic separation; different extraction schemes can be adopted for different parts of Artemisia annua by setting an extraction device 3, so as to obtain highly active Artemisia annua essential oils of different qualities; the extraction device 3 improves the purity of Artemisia annua essential oil by adopting a secondary distillation method; and the extraction efficiency of Artemisia annua is improved by setting a pulverizer 2.

[0080] Embodiment 3: This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the above technical features and is further described in detail:

[0081] Combination Figure 1 As shown, an application method of a separation and extraction system for preparing highly active Artemisia annua essential oil comprises:

[0082] S1, screening and separation, the material separation device 1 is used to screen the Artemisia annua plants to separate the rhizomes and leaves;

[0083] After washing and drying the Artemisia annua plants, they are placed in the feed hopper 111, and the feeding device 12 controls the input amount of the Artemisia annua so that the Artemisia annua can fall into the conveyor belt device 132 in sequence, and then are transported by the conveyor belt device 132. During the transportation process, the passing Artemisia annua is photographed, collected and analyzed by the visual detection unit 134 to identify and analyze whether there are thick stems of the Artemisia annua.

[0084] If it is identified that there is a thick stem, the Artemisia annua is determined as the target Artemisia annua, and the limit block 1335 at the corresponding position is controlled to move downward to intermittently fix the thick stem of the target Artemisia annua, and then the separation roller unit 131 is controlled to descend and contact the Artemisia annua leaves on the conveyor belt to drag the leaves so that the leaves are separated from the thick stem, and at the same time, a thrust is provided to make the leaves output from the first discharge port 1322, and the thick stem is transported by the conveyor belt device 132 to be sent out from the second discharge port 1323 for recovery;

[0085] The principle of intermittent fixing is to drive the pressing part to perform reciprocating lifting and lowering motion through the movement of the crankshaft 1332, thereby performing pressing and limiting movement on thick stems exceeding the set diameter;

[0086] If no thick stems are identified, the Artemisia annua is dragged and pulled by the third roller 1313 of the separation roller unit 131, and the leaves are sent out from the first discharge outlet;

[0087] S2, crushing, the leaves and the thick stems are crushed by a crusher 2 to obtain leaf crushed materials and thick stem crushed materials respectively;

[0088] S3, first extraction, performing soaking and distillation extraction on the leaf fragments to obtain a first Artemisia annua essential oil;

[0089] The specific method of immersion distillation extraction includes: putting leaf crushed material into a first distillation kettle 31, mixing with water for steaming, collecting the evaporated essential oil through a condenser of the first distillation kettle 31, then inputting it into a second distillation kettle 32 through a conduit for secondary distillation, and then collecting it through the condensation end of the second distillation kettle 32 to obtain the first Artemisia annua essential oil.

[0090] S4, second extraction, performing supercritical extraction on the thick stems to obtain a second Artemisia annua essential oil.

[0091] Supercritical fluid extraction uses the dissolving ability of supercritical fluids such as carbon dioxide under supercritical conditions to extract Artemisia annua essential oil.

[0092] Although the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the present invention. That is, the methods, systems and devices discussed above are examples. Various configurations may appropriately omit, replace or add various processes or components. For example, in alternative configurations, the method may be performed in an order different from the order described, and / or various components may be added, omitted and / or combined. Moreover, the features described with respect to certain configurations may be combined in various other configurations, such as different aspects and elements of the configurations may be combined in a similar manner. In addition, the elements therein may be updated as the technology develops, i.e., many elements are examples and do not limit the scope of the present disclosure or claims.

[0093] Specific details are given in the specification to provide a thorough understanding of the exemplary configurations including implementations. However, the configurations may be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary details to avoid obscuring the configurations. This description provides only example configurations and does not limit the scope, applicability, or configurations of the claims. On the contrary, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made to the functions and arrangements of the elements without departing from the spirit or scope of the present disclosure.

[0094] In summary, it is intended that the above detailed description is considered to be illustrative rather than restrictive, and it should be understood that the above embodiments should be understood to be only used to illustrate the present invention and not to limit the scope of protection of the present invention. After reading the contents of the present invention, the technician can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. A separation and extraction system for preparing highly active Artemisia annua essential oil, characterized in that: include: A material separation device, used for separating and screening the raw materials of Artemisia annua, so as to separate the thick stems and leaves of Artemisia annua; A pulverizer, used for pulverizing the separated Artemisia annua respectively; An extraction device, used for extracting and preparing artemisia annua essential oil; A control module is communicatively connected with the material dividing device, the pulverizer and the extraction device; The material separation device includes a chassis, a feeding device and a separation device both arranged on the chassis, wherein the feeding device is used to control the amount of the Artemisia annua raw material supplied to the separation device, and the separation device is configured to separate the leaves and thick stems of Artemisia annua; The separation device comprises a separation roller unit, a conveyor belt device, a fixing unit and a visual detection unit, all of which are arranged in a material distribution chamber. The conveyor belt device is used to transport the Artemisia annua, the visual detection unit is used to detect the morphology of the Artemisia annua on the conveyor belt device, the separation roller unit is configured to provide separation traction to the Artemisia annua, the fixing unit is used to press and fix the Artemisia annua on the conveyor belt device, and the visual detection unit is communicatively connected to the control module; The extraction device includes a distillation unit and a supercritical extraction unit, the distillation unit includes a first distillation kettle and a second distillation kettle, the output end of the first distillation kettle is connected to the input end of the second distillation kettle through a conduit, the distillation unit is configured to extract Artemisia annua leaf fragments through secondary distillation to prepare Artemisia annua essential oil, and the supercritical extraction unit is configured to extract Artemisia annua thick stem fragments through supercritical fluid.

2. A separation and extraction system for preparing highly active Artemisia annua essential oil as claimed in claim 1, characterized in that: The feeding device includes a first mounting frame, a first driving motor, a first roller and a second roller. The first mounting frame is arranged at the outlet of the feed hopper. The first roller and the second roller are arranged side by side and rotatably on the first mounting frame. The first driving motor is fixedly arranged on the first mounting frame, and the first driving motor is respectively connected to the first roller and the second roller by transmission.

3. A separation and extraction system for preparing highly active Artemisia annua essential oil as claimed in claim 2, characterized in that: The separation roller unit includes a lifting mechanism, a second mounting frame, a third roller, and a second drive motor. The lifting mechanism is arranged on the material distribution chamber of the chassis and is connected to the second mounting frame. The lifting mechanism is used to adjust the height of the second mounting frame. The third roller is rotatably arranged on the second mounting frame. The second drive motor is arranged on the second mounting frame and is transmission-connected to the third roller.

4. A separation and extraction system for preparing highly active Artemisia annua essential oil as claimed in claim 3, characterized in that: The fixing unit includes a third drive motor, a crankshaft, a piston, a first mounting seat, a second mounting seat, a connecting rod, and a limit block. The first mounting seat and the second mounting seat are both connected to the chassis. The crankshaft is rotatably arranged on the first mounting seat. The third drive motor is arranged on the first mounting seat and is connected to the crankshaft transmission. The piston is connected to the limit block through a connecting rod to form a pressing part. The pressing part is provided in multiple groups and is arranged in sequence on the crankshaft. The second mounting seat is provided with a slide groove matching the piston, and the cylinder end of the piston is slidably arranged in the slide groove.

5. A separation and extraction system for preparing highly active Artemisia annua essential oil as claimed in claim 4, characterized in that: The conveyor belt device is provided with a support platform at a position corresponding to the fixing unit and the separation roller unit, and the support platform is used to provide support to the conveyor belt when the fixing unit and the separation roller unit are lowered and contact the conveyor belt, so that the fixing unit and the separation roller unit can stably output separation and limit the fixing force.

6. A separation and extraction system for preparing highly active Artemisia annua essential oil as claimed in claim 5, characterized in that: The material dividing device further comprises a combing unit, and the combing unit is used for adjusting the orientation of the Artemisia annua on the conveyor belt device.

7. A method for using the separation and extraction system according to claim 6, characterized in that: include: S1, screening and separation, the material separation device is used to screen the Artemisia annua plants and separate the rhizomes and leaves; S2, crushing, the leaves and the thick stems are crushed by a crusher to obtain leaf crushed materials and thick stem crushed materials respectively; S3, first extraction, performing soaking and distillation extraction on the leaf fragments to obtain a first Artemisia annua essential oil; S4, second extraction, performing supercritical extraction on the thick stems to obtain a second Artemisia annua essential oil.

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