Pogostemon cablin essential oil clathrate compound preparation device

Abstract

The invention discloses a pogostemon cablin essential oil clathrate compound preparation device, and relates to the technical field of medicine preparation, the pogostemon cablin essential oil clathrate compound preparation device comprises a kettle body, the bottom of the kettle body is an arc-shaped lower sealing head structure; the flow guide cone is arranged in the center of the bottom of the kettle body, and baffles are vertically arranged on the inner wall of the kettle body in a circumferential array mode; the stirring assembly is arranged in the kettle body, and the stirring assembly is used for being matched with the flow guide cone and the baffle and is used for guiding liquid in the kettle body to circularly flow up and down; the outer circulation high-shearing assembly comprises a high-speed shearing device, a suction inlet assembly is arranged at the side bottom of the kettle body and communicated with a feeding port of the high-speed shearing device, and a backflow port is formed in the side wall of the kettle body and communicated with a discharging port of the high-speed shearing device; an outer circulation passage is formed between the kettle body and the high-speed shearing device; the ultrasonic-assisted assembly is arranged near the suction inlet assembly; and the essential oil injection pipe is arranged in the flow guide cone.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical preparation technology, specifically to an apparatus for preparing patchouli essential oil inclusion complex. Background Technology

[0002] Patchouli essential oil is a highly volatile, hydrophobic natural product. Its main active components are sensitive to temperature, oxygen, and light, and it exhibits a pronounced odor release characteristic. In the food, daily chemical, and medical carrier fields, to improve the dispersibility and storage stability of patchouli essential oil in aqueous systems and to achieve controlled aroma release and appropriate odor masking, current processes commonly employ inclusion carriers such as cyclodextrin and its derivatives to prepare patchouli essential oil inclusion complexes. Industrially, the inclusion carrier is typically dissolved in a stirred tank, and the essential oil is dispersed into an aqueous system by heating and stirring, external high-shear emulsification, high-energy ultrasonic dispersion, or the addition of a co-solvent. The resulting product is then cooled, solidified, or dried to obtain the inclusion complex.

[0003] Under scale-up and continuous batch production conditions, existing patchouli essential oil inclusion devices and processes often face a series of common problems. On the one hand, the flow field in conventional stirred tanks is not uniform enough, and vortex core voids, dead flow corners on the side walls and bottom are prone to appear. The initial addition position of the essential oil is often misaligned with the high-shear or ultrasonic action area, resulting in insufficient effective contact frequency between oil droplets and inclusion carriers, a wide particle size distribution, and difficulty in ensuring inclusion rate and batch-to-batch consistency. On the other hand, relying solely on high-shear or ultrasonic enhancement can easily lead to excessively high energy density and temperature gradients in local areas.

[0004] Therefore, we propose an apparatus for preparing patchouli essential oil inclusion complexes. Summary of the Invention

[0005] The purpose of this invention is to provide an apparatus for preparing patchouli essential oil inclusion complexes, thereby solving the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: an apparatus for preparing patchouli essential oil inclusion complexes, comprising: The vessel body has a rounded lower end cap structure at its bottom. A flow guide cone is provided at the center of the bottom of the vessel body, and baffles are vertically arranged in a circular array on the inner wall of the vessel body; A stirring assembly is disposed inside the vessel body. The stirring assembly is used in conjunction with a guide cone and a baffle to guide the liquid inside the vessel body into an up-and-down circulating flow. External circulation high-shear assembly, the external circulation high-shear assembly comprising: A high-speed shearing device is provided with an inlet assembly at the bottom side of the vessel body, which is connected to the feed inlet of the high-speed shearing device. A reflux port is provided on the side wall of the vessel body, which is connected to the discharge port of the high-speed shearing device, so as to form an external circulation path between the vessel body and the high-speed shearing device. An ultrasonic auxiliary component is disposed near the inlet component; An essential oil spray tube is provided inside a flow guide cone, with the outlet of the essential oil spray tube aligned with the inlet assembly.

[0006] Preferably, the stirring assembly includes: A stirring blade is disposed inside the vessel and directly opposite the guide cone. The stirring blade is used to push the liquid downward. A drive rod is fixedly connected to the top of the stirring blade. The scraper abuts against the inner wall of the vessel. A second drive rod is sleeved on the first drive rod. Several scrapers are provided. The scraper is fixedly connected to the outer wall of the bottom end of the second drive rod. A gear is fixedly connected to the top end of the second drive rod. The baffle and the vessel body have a gap that allows the scraper to pass through. A drive assembly for driving a drive rod and a gear to rotate.

[0007] Preferably, the driving component includes: A motor frame is fixedly connected to the top of the vessel body. A servo motor is fixedly connected inside the motor frame. The end of the output shaft of the servo motor is fixedly connected to the top of the drive rod. Servo motor 2 is fixedly connected to the motor frame. A gear 2 is fixedly connected to the end of the output shaft inside the servo motor 2, and the gear 2 meshes with gear 1.

[0008] Preferably, the ultrasonic assist component includes: An ultrasonic transducer is fixedly installed on the outer bottom of the vessel body. The vessel body has acoustic windows at the corresponding positions of each ultrasonic transducer. The inner surface of the acoustic windows is basically flush with the inner wall of the vessel body to allow ultrasonic waves to penetrate into the liquid inside the vessel. The focal area of ​​the sound field formed by the ultrasonic transducer inside the vessel body is located near the feeding area of ​​the suction port assembly.

[0009] Preferably, the suction port assembly includes a suction port body, which has a Venturi tube-like structure and includes, from the inside of the vessel body outwards, a feed inlet communicating with the inner cavity of the vessel body, a contraction section communicating with the feed inlet and having a gradually decreasing inner diameter, a throat section communicating with the contraction section and having the smallest inner diameter, and a diffusion section communicating with the throat section and having a gradually increasing inner diameter; wherein, the throat section is connected to the liquid inside the vessel body through the feed inlet, and the outlet of the diffusion section is connected to the feed inlet of the high-speed shearing device.

[0010] This invention has at least the following beneficial effects: 1. The arc-shaped lower end cap structure of the vessel body, in conjunction with the central guide cone, reliably guides the main circulating flow formed by the downward pressure of the stirring assembly to the bottom and side bottom areas of the vessel. Combined with baffles, this eliminates vortex cores and dead corners on the wall, facilitating continuous material renewal at the bottom and preventing localized sedimentation. The external circulation high-shear assembly positions the inlet assembly near the outer edge of the guide cone on the side bottom, ensuring that the material concentrated by the stirring and guide cone preferentially enters the high-speed shearing device, improving the effective utilization rate of the external circulation. The ultrasonic auxiliary assembly concentrates ultrasonic energy onto the inlet assembly's feeding area through an acoustic window, achieving a harmonious integration of the sound field and flow field. The spatial overlap at the inlet ensures that the patchouli essential oil sprayed from the essential oil spray tube is in a strong acoustic cavitation and turbulent environment before entering the external circulation, which significantly improves the initial dispersion of the essential oil, reduces the droplet size, and decreases the probability of the essential oil agglomerating, floating, or coalescing in other areas of the vessel. In addition, the essential oil spray tube is set inside the guide cone and aligned with the inlet assembly, so that the essential oil addition position is highly consistent with the high shear and ultrasonic action area, which is conducive to increasing the effective contact frequency between the essential oil and the inclusion carrier, improving the inclusion efficiency and the uniformity of product particle size distribution. At the same time, the essential oil is sprayed in a metered manner in a closed pipeline. 2. Through the structural design of the above-mentioned coaxial arrangement of the stirring blades and scrapers and their respective driving components, this embodiment can not only achieve overall up-and-down circulation of the liquid in the vessel, but also directionally scrape and drive the flow in areas near the inner wall of the vessel and the back of the baffle, which are prone to forming dead flow corners. This helps to weaken the vortex core voids and stagnant layers on the wall inside the vessel, reduce the adhesion and deposition of materials near the inner wall and baffle, and enhance the convective heat transfer in the wall area. As a result, on the one hand, it can improve the mixing uniformity and temperature uniformity of the patchouli essential oil inclusion system under high viscosity or high solid content conditions, providing more stable feeding conditions for subsequent high shear and ultrasonic dispersion of the external circulation. On the other hand, it also facilitates the scraping off and carrying away of residual materials near the inner wall and baffle during subsequent cleaning. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the stirring assembly structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A; Figure 5 This is a schematic diagram of the external circulation high shear component structure of the present invention.

[0012] In the diagram: 10. Vessel body; 11. Guide cone; 12. Baffle; 20. Stirring assembly; 21. Stirring blade; 22. Scraper; 23. Drive assembly; 24. Drive rod one; 25. Drive rod two; 26. Gear one; 30. External circulation high shear assembly; 31. High-speed shearing device; 32. Suction inlet assembly; 33. Return port; 40. Ultrasonic auxiliary assembly; 41. Ultrasonic transducer; 50. Essential oil injection pipe; 231. Motor frame; 232. Servo motor one; 233. Servo motor two; 234. Gear two; 321. Suction inlet body; 322. Feed inlet; 323. Contraction section; 324. Throat section; 325. Diffusion section. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-5 This invention provides a technical solution: an apparatus for preparing patchouli essential oil inclusion complex, comprising: The vessel body 10 has a bottom arc-shaped lower end cap structure; A flow guide cone 11 is disposed at the center of the bottom of the vessel body 10, and baffles 12 are vertically arranged in a circular array on the inner wall of the vessel body 10. A stirring assembly 20 is disposed inside the vessel body 10. The stirring assembly 20 is used to cooperate with the guide cone 11 and the baffle 12 to guide the liquid inside the vessel body 10 into an up-and-down circulating flow. External circulation high-shear assembly 30, the external circulation high-shear assembly 30 comprising: The high-speed shearing device 31 has an inlet assembly 32 at the bottom side of the vessel body 10, which is connected to the feed inlet of the high-speed shearing device 31. The side wall of the vessel body 10 has a reflux port 33, which is connected to the discharge port of the high-speed shearing device 31, so as to form an external circulation path between the vessel body 10 and the high-speed shearing device 31. An ultrasonic auxiliary component 40 is disposed near the suction port component 32. Essential oil spray pipe 50, the essential oil spray pipe 50 is disposed inside the guide cone 11, and the outlet of the essential oil spray pipe 50 is aligned with the suction port assembly 32; It should be noted that during operation, the inclusion carrier aqueous solution is first added to the vessel 10 and stirring is started by the stirring assembly 20. The stirring blade 21 rotates directly above the guide cone 11, pushing the liquid downward to the top of the guide cone 11. The liquid slides along the conical surface of the guide cone 11 and flows outward. After converging at the arc-shaped lower end cap, it is guided by the baffle 12 and scraper 22 to flow back upward along the inner wall of the vessel 10, thus forming a top-down and bottom-up circulating flow within the vessel 10. At the same time, the suction inlet assembly 32 at the bottom side of the vessel 10, under the suction action of the high-speed shearing device 31, draws the liquid around the guide cone 11 and near the bottom of the vessel 10 into the external circulation high-shear assembly 30. The liquid is strongly sheared and emulsified after passing through the high-shear stator and rotor areas of the suction inlet assembly 32 and the high-speed shearing device 31, and is then tangentially sprayed back into the vessel 10 through the return port 33, thus forming a bottom area. A composite circulating flow field is formed within the vessel body 10. While the external circulation is working, the ultrasonic transducer 41 in the ultrasonic auxiliary component 40 emits ultrasonic waves into the vessel body 10 through the acoustic window, forming a sound field focal zone near the feeding area of ​​the suction port component 32, causing strong acoustic cavitation and microscopic disturbance in the liquid within this area. The essential oil spray pipe 50 is arranged inside the guide cone 11, and its outlet is aligned with the suction port component 32. When patchouli essential oil needs to be added, the essential oil is sprayed out along the essential oil spray pipe 50 under a certain pressure, directly injected into the liquid in front of the suction port component 32, and preferentially falls into the action area of ​​the ultrasonic auxiliary component 40. Under the action of acoustic cavitation, it is pre-dispersed into smaller oil droplets and then enters the suction port component 32 with the local flow. It is then subjected to secondary shearing and refinement by the high-speed shearing device 31, thereby realizing the stepwise dispersion and mixing of essential oil in the aqueous phase and the inclusion carrier. It is worth noting that, through the cooperation of the arc-shaped lower end cap structure of the vessel body 10 and the central guide cone 11, the main circulating flow formed by the downward pressure of the stirring assembly 20 is reliably guided to the bottom and side bottom areas of the vessel. Combined with the baffle 12, this eliminates vortex cores and dead corners on the wall, facilitating continuous material renewal at the bottom and preventing localized sedimentation. The external circulation high-shear assembly 30 places the suction inlet assembly 32 near the outer edge of the guide cone 11 on the side bottom, allowing the material concentrated by the stirring and guide cone 11 to preferentially enter the high-speed shearing device 31, improving the effective utilization rate of the external circulation. The ultrasonic auxiliary assembly 40 concentrates ultrasonic energy onto the suction inlet assembly 32 through an acoustic window for feeding. The system achieves spatial overlap between the sound field and the flow field at the inlet, ensuring that the patchouli essential oil sprayed from the essential oil spray pipe 50 is in a strong acoustic cavitation and turbulent environment before entering the external circulation. This significantly improves the initial dispersion of the essential oil, reduces the droplet size, and decreases the probability of the essential oil agglomerating, floating, or coalescing in other areas of the vessel. Furthermore, the essential oil spray pipe 50 is positioned within the guide cone 11 and aligned with the inlet assembly 32, ensuring that the essential oil addition position is highly consistent with the high shear and ultrasonic action area. This helps to increase the effective contact frequency between the essential oil and the inclusion carrier, improve the inclusion efficiency, and enhance the uniformity of the product particle size distribution. Simultaneously, the essential oil is quantitatively sprayed into the closed pipeline.

[0015] Further, as shown in Figures 2 and 3, it is worth noting that the stirring assembly 20 includes: A stirring blade 21 is disposed inside the vessel body 10 and faces the guide cone 11. The stirring blade 21 is used to push the liquid downward. A drive rod 24 is fixedly connected to the top of the stirring blade 21. The scraper 22 abuts against the inner wall of the vessel body 10. The drive rod 24 is fitted with a drive rod 25. The scraper 22 is provided with several strips. The scraper 22 is fixedly connected to the outer wall of the bottom end of the drive rod 25. The top end of the drive rod 25 is fixedly connected to a gear 26. The baffle 12 and the vessel body 10 have a gap that allows the scraper 22 to pass through. Drive assembly 23, which is used to drive drive rod 24 and gear 26 to rotate; It should be noted that when the stirring assembly 20 is working, after the drive assembly 23 is started, it drives the drive rod 1 24 and drive rod 25 to rotate respectively. The drive rod 1 24 rotates directly above the guide cone 11 through the stirring blade 21 fixedly connected to its lower end, pressing the liquid in the middle and upper part of the vessel body 10 downward to the top of the guide cone 11. At the same time, the drive rod 25, which is coaxially arranged on the outside of the drive rod 1 24, rotates around the axis of the vessel body 10 under the drive of the gear 1 26. Several scraper strips 22 fixedly connected to the outer wall of its lower end sweep along the circumferential inner wall of the vessel body 10. During the rotation, the scraper strips 22 On the one hand, it basically adheres to the inner wall of the vessel 10 and slides within the reserved gap, scraping away the liquid and material attached to or near the inner wall and guiding them into the main circulating flow field formed by the stirring blade 21 and the guide cone 11; on the other hand, when the scraper 22 passes through the reserved gap between the baffle 12 and the vessel 10, it can also carry the liquid on the leeward side of the baffle 12 and its surrounding area out of the gap and into the overall circulation, so that the material in the wall area, around the baffle 12 and the area above the bottom of the vessel 10 is constantly renewed, forming a through-flowing vertical circulation with the material in the middle and upper parts of the vessel 10. It is worth noting that, through the structural design of the above-mentioned coaxial arrangement of the stirring blade 21 and the scraper 22 and their respective driving by the drive assembly 23, this embodiment can not only achieve overall up-and-down circulation of the liquid in the vessel 10, but also directionally scrape and drive the flow in areas that are prone to forming flow dead zones, such as the inner wall of the vessel 10 and the back of the baffle 12. This helps to weaken the vortex core voids and wall stagnation layers in the vessel, reduce the adhesion and deposition of materials near the inner wall and baffle 12, and enhance the convective heat transfer in the wall area. As a result, on the one hand, it can improve the mixing uniformity and temperature uniformity of the patchouli essential oil inclusion system under high viscosity or high solid content conditions, providing more stable feeding conditions for subsequent external circulation high shear and ultrasonic dispersion. On the other hand, it also facilitates the scraping off and carrying away of residual materials near the inner wall and baffle 12 during subsequent cleaning.

[0016] Further, as shown in Figure 4, it is worth noting that the driving component 23 includes: The motor frame 231 is fixedly connected to the top of the vessel body 10. A servo motor 232 is fixedly connected inside the motor frame 231. The end of the output shaft inside the servo motor 232 is fixedly connected to the top of the drive rod 24. Servo motor 233 is fixedly connected to motor frame 231. Gear 234 is fixedly connected to the end of the output shaft inside servo motor 233. Gear 234 meshes with gear 1 26. It should be noted that the motor frame 231 is fixed to the top of the vessel body 10 and is used to support and position the servo motor 1 232 and the servo motor 233. During operation, the output shaft of the servo motor 1 232 is rigidly connected to the top of the drive rod 1 24, directly transmitting the motor torque to the stirring blade 21, thereby forming a downward-pushing main circulation above the guide cone 11; the output shaft end of the servo motor 2233 is fixedly connected to the gear 234, which meshes with the gear 26 set at the top of the drive rod 25. When the servo motor 2233 rotates, it drives the drive rod 25 and the scraper 22 connected to its lower end to rotate around the axis of the vessel body 10 through gear transmission, thereby achieving scraping and flow on the inner wall of the vessel body 10 and the back of the baffle 12; the servo motor 1 232 and the servo motor 2233 can be set to start / stop and speed according to process requirements to achieve multiple operating conditions such as stirring only, scraping only, or stirring and scraping simultaneously.

[0017] Further, as shown in Figure 5, it is worth noting that the ultrasonic auxiliary component 40 includes: An ultrasonic transducer 41 is fixedly installed on the outer bottom of the vessel body 10. The vessel body 10 has an acoustic window at the corresponding position of each ultrasonic transducer 41. The inner surface of the acoustic window is basically flush with the inner wall of the vessel body 10, which is used to allow ultrasonic waves to penetrate into the liquid inside the vessel. The sound field focus area formed by the ultrasonic transducer 41 inside the vessel body 10 is located near the feeding area of ​​the suction port assembly 32. It should be noted that when the ultrasonic auxiliary component 40 is working, the ultrasonic transducer 41 is fixed to the outside of the bottom or side bottom of the vessel body 10, and its working surface is in close contact with the outer wall of the vessel body 10, transmitting high-frequency mechanical vibrations to the acoustic window. Structurally, the acoustic window is a partial thinning or insert of the vessel wall, and its inner surface is basically flush with the inner wall of the vessel body 10, so that the ultrasonic waves are attenuated less when passing through this point and act directly on the liquid inside the vessel body 10. When the ultrasonic transducer 41 is energized and vibrates, periodic high-pressure and low-pressure zones are formed in the adjacent area inside the acoustic window. The liquid generates cavitation bubbles in the low-pressure phase and collapses rapidly in the high-pressure phase, thereby forming a sound field focal region and strong acoustic cavitation effect near the feed area of ​​the suction inlet assembly 32. This sound field focal region coincides with the fluid streamline in front of the feed inlet 322 of the suction inlet assembly 32, so that the liquid that gathers from the bottom of the vessel and around the guide cone 11 to the front of the suction inlet assembly 32 undergoes ultrasonic cavitation and micro-scale shearing before entering the external circulation. This helps to reduce the size of local liquid clumps and oil droplets and promotes local mixing and disturbance of materials in this area. It is worth noting that, through the structural design of the ultrasonic transducer 41 in conjunction with the acoustic window, on the one hand, effective energy coupling between the ultrasonic auxiliary component 40 and the liquid inside the vessel 10 is achieved, while avoiding the direct insertion of the ultrasonic transducer 41 body into the vessel. This avoids occupying space inside the vessel, interfering with the stirring component 20 or the scraper 22, and preventing the formation of hard-to-clean structural dead corners inside the vessel, which is beneficial for maintaining the smoothness of the inner surface and the on-site cleaning effect. On the other hand, the sound field focal area is arranged near the feeding area of ​​the suction port component 32, so that the strengthening effect of ultrasonic cavitation is concentrated on the material that is about to be sucked by the external circulation high shear component 30. This can improve the micro-dispersion state of the area before the suction port without significantly increasing the overall ultrasonic power, reduce the agglomeration and particle size difference of the material before entering the high-speed shearing device 31, thereby improving the dispersion uniformity of patchouli essential oil in the inclusion system and the subsequent shearing efficiency. At the same time, it reduces the excessive acoustic energy effect on other areas inside the vessel, reduces local overheating and adverse effects on sensitive components.

[0018] Further, as shown in Figure 5, it is worth noting that the suction port assembly 32 includes a suction port body 321, which has a Venturi tube-like structure. From the inside of the vessel body 10 outwards, it includes, in sequence, a feed port 322 communicating with the inner cavity of the vessel body 10, a converging section 323 communicating with the feed port 322 and having a gradually decreasing inner diameter, a throat section 324 communicating with the converging section 323 and having the smallest inner diameter, and a diffuser section 325 communicating with the throat section 324 and having a gradually increasing inner diameter. The throat section 324 is connected to the liquid inside the vessel body 10 through the feed port 322, and the outlet of the diffuser section 325 is connected to the feed port of the high-speed shearing device 31. It should be noted that when the suction inlet assembly 32 operates continuously under the suction action of the high-speed shearing device 31, the liquid around the guide cone 11 and near the arc-shaped lower head inside the vessel body 10 is first collected in the side bottom area by the guide flow, and then enters the suction inlet body 321 through the feed inlet 322 located inside the vessel body 10. After entering, the liquid first passes through the contraction section 323 with a gradually decreasing inner diameter. In this section, the inner diameter decreases, the flow stream is compressed, the flow velocity gradually increases, and the static pressure decreases accordingly, forming an accelerated flow towards the throat section 324. When the liquid flows to the throat section 324, since the throat section 324 is the suction inlet... The section with the smallest inner diameter of the body 321 has the smallest cross-sectional area. The liquid flow velocity reaches its maximum and the local static pressure is the lowest at this point, forming a local low static pressure zone inside the suction inlet assembly 32. This zone has a significant suction and entrainment effect on the liquid in the vessel near the feed inlet 322. Subsequently, the liquid enters the diffusion section 325, which has a gradually increasing inner diameter. In the diffusion section 325, the flow velocity gradually decreases and the static pressure gradually recovers to a level that matches the inlet of the high-speed shearing device 31. Finally, the liquid is smoothly transported to the feed inlet of the high-speed shearing device 31, where it undergoes further high-speed shearing and emulsification treatment by the stator and rotor structure inside the high-speed shearing device 31. It is worth noting that by designing the suction inlet body 321 as a Venturi tube structure, compared to a simple straight-through structure, this embodiment utilizes the geometric contraction of the contraction section 323 and the throat section 324 to naturally form a stable high-velocity, low-static-pressure zone inside the suction inlet assembly 32 without adding additional moving parts. On the one hand, this enhances the suction capacity for liquid at the bottom of the vessel 10 and around the guide cone 11, allowing materials in the bottom and side bottom areas to be more fully and continuously drawn into the external circulation high-shear assembly 30, reducing bottom deposition and dead zones. On the other hand, this design, combined with the suction... The ultrasonic auxiliary component 40 near the inlet component 32 and the essential oil spray tube 50 aligned with the inlet component 32 make it easier for the ultrasonically pre-dispersed patchouli essential oil droplets to be drawn into the throat section 324 by the low static pressure zone generated by the Venturi structure near the feed inlet 322, and quickly enter the high-speed shearing device 31 for secondary refinement. This increases the probability of the essential oil droplets being captured by the external circulation high-shear passage, reduces the residence and aggregation of essential oil in other areas of the vessel body 10, and helps to improve the dispersion uniformity and inclusion efficiency of patchouli essential oil in the inclusion system, while maintaining the compactness and ease of processing of the inlet structure itself.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An apparatus for preparing patchouli essential oil inclusion complex, characterized in that, include: The vessel body (10) has a circular arc-shaped lower end cap structure at its bottom; A flow guide cone (11) is located at the center of the bottom of the vessel body (10), and baffles (12) are vertically arranged in a circular array on the inner wall of the vessel body (10). A stirring assembly (20) is disposed inside the vessel body (10). The stirring assembly (20) is used to cooperate with the guide cone (11) and the baffle (12) to guide the liquid inside the vessel body (10) into an up-and-down circulating flow. An external circulation high-shear assembly (30) comprising: The high-speed shearing device (31) has a suction port assembly (32) at the bottom side of the vessel body (10), which is connected to the feed port of the high-speed shearing device (31). The side wall of the vessel body (10) has a reflux port (33), which is connected to the discharge port of the high-speed shearing device (31) to form an external circulation path between the vessel body (10) and the high-speed shearing device (31). An ultrasonic auxiliary component (40) is disposed near the inlet component (32); An essential oil spray pipe (50) is disposed inside a guide cone (11), and the outlet of the essential oil spray pipe (50) is aligned with the inlet assembly (32).

2. The apparatus for preparing patchouli essential oil inclusion complex according to claim 1, characterized in that: The stirring assembly (20) includes: A stirring blade (21) is disposed inside the vessel body (10) and faces the guide cone (11). The stirring blade (21) is used to push the liquid downward. A drive rod (24) is fixedly connected to the top of the stirring blade (21). The scraper (22) abuts against the inner wall of the vessel body (10). The drive rod one (24) is fitted with a drive rod two (25). The scraper (22) is provided with several scrapers. The scraper (22) is fixedly connected to the outer wall of the bottom end of the drive rod two (25). The top end of the drive rod two (25) is fixedly connected with a gear one (26). The baffle (12) and the vessel body (10) have a gap that allows the scraper (22) to pass through. The drive assembly (23) is used to drive the drive rod (24) and the gear (26) to rotate.

3. The apparatus for preparing patchouli essential oil inclusion complex according to claim 2, characterized in that: The driving component (23) includes: The motor frame (231) is fixedly connected to the top of the vessel body (10). A servo motor (232) is fixedly connected inside the motor frame (231). The end of the output shaft inside the servo motor (232) is fixedly connected to the top of the drive rod (24). Servo motor two (233) is fixedly connected to motor frame (231). Gear two (234) is fixedly connected to the end of the output shaft inside servo motor two (233). Gear two (234) meshes with gear one (26).

4. The apparatus for preparing patchouli essential oil inclusion complex according to claim 3, characterized in that: The ultrasonic assist component (40) includes: An ultrasonic transducer (41) is fixedly installed on the outer bottom of the vessel body (10). The vessel body (10) has an acoustic window at the corresponding position of each ultrasonic transducer (41). The inner surface of the acoustic window is basically flush with the inner wall of the vessel body (10) to allow ultrasonic waves to penetrate into the liquid inside the vessel. The sound field focal area formed by the ultrasonic transducer (41) inside the vessel body (10) is located near the feeding area of ​​the suction port assembly (32).

5. The apparatus for preparing patchouli essential oil inclusion complex according to claim 4, characterized in that: The suction port assembly (32) includes a suction port body (321), which has a Venturi tube structure and includes, from the inside of the vessel body (10) outward, a feed port (322) communicating with the inner cavity of the vessel body (10), a contraction section (323) communicating with the feed port (322) and having a gradually decreasing inner diameter, a throat section (324) communicating with the contraction section (323) and having the smallest inner diameter, and a diffusion section (325) communicating with the throat section (324) and having a gradually increasing inner diameter; wherein, the throat section (324) is connected to the liquid in the vessel body (10) through the feed port (322), and the outlet of the diffusion section (325) is connected to the feed port of the high-speed shearing device (31).

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