Supercritical shiny-leaved yellowhorn seed extraction device

Abstract

The invention discloses a supercritical xanthoceras sorbifolia bunge seed extraction device, and relates to the technical field of extraction.The supercritical xanthoceras sorbifolia bunge seed extraction device comprises an extraction kettle, a carbon dioxide pipe, a clear water pipe, a stirring assembly and a separation assembly.The top of the extraction kettle is provided with a feeding port, and a sealing cover is arranged at the feeding port; the carbon dioxide pipe and the clear water pipe are symmetrically connected to the upper end of the extraction kettle, electromagnetic valves are arranged on the carbon dioxide pipe and the clear water pipe, the separation assembly is arranged at the bottom of the extraction kettle in a sliding mode, the separation assembly and the extraction kettle are installed in a sliding and sealing mode, and the stirring assembly stirs the interior of the extraction kettle. The electromagnetic valve on the clear water pipe is opened by a control system, clear water is flushed into the extraction kettle, and shiny-leaved yellowhorn seed residues are flushed into the drainage hose along with the clear water, so that the interior of the extraction kettle is automatically cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of extraction, in particular to a supercritical Xanthoceras sorbifolia seed extraction device. Background Art

[0002] Supercritical fluid extraction (SCFE) technology, due to its environmentally friendly and highly selective advantages, has been widely used in the extraction of plant oils and active ingredients. Xanthoceras sorbifolia seeds, an important woody oil resource, have a kernel oil content of 50%-70% and are rich in bioactive substances such as nervonic acid. However, the current supercritical CO2 extraction process for Xanthoceras sorbifolia seeds still faces significant technical bottlenecks in the extraction kettle, the core device. Conventional mechanical stirring systems, operating under high pressure and in a closed environment, have limited mixing efficiency, resulting in suboptimal mass transfer. When processing high-oil-content materials, conventional paddle structures are prone to material agglomeration, causing uneven solvent penetration and a decrease in oil release rate by approximately 30%. This not only prolongs the extraction cycle but also increases CO2 circulation by over 20%, significantly increasing energy costs. Furthermore, existing equipment lacks an automated cleaning module, requiring manual disassembly and cleaning of the kettle after each operation. This process takes up to 1.5-2 hours and carries the risk of cross-contamination between batches due to blind spots in the cleaning process. Statistics show that product quality fluctuations due to incomplete cleaning of conventional equipment can reach 15%, severely restricting the efficiency of continuous production. Summary of the Invention

[0003] The object of the present invention is to provide a supercritical Xanthoceras sorbifolia seed extraction device to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a supercritical Xanthoceras sorbifolia seed extraction device, comprising an extraction kettle, a carbon dioxide tube, a clean water tube, a stirring assembly and a separation assembly, a feed port being provided on the top of the extraction kettle, a sealing cover being provided at the feed port, the carbon dioxide tube and the clean water tube being symmetrically connected to the upper end of the extraction kettle, both the carbon dioxide tube and the clean water tube being provided with solenoid valves, the separation assembly being slidingly arranged at the bottom of the extraction kettle, the separation assembly and the extraction kettle being slidingly and sealingly installed, the stirring assembly stirring the interior of the extraction kettle, the operator drying the Xanthoceras sorbifolia seeds to be extracted and crushing them into small particles, the efficiency of the Xanthoceras sorbifolia extraction can be improved by drying and crushing, the crushed Xanthoceras sorbifolia seeds are put into the extraction kettle through the feed port, the sealing cover is closed firmly, the interior of the extraction kettle reaches a sealed state, the pressure and temperature inside the tank body are increased to the supercritical pressure and temperature of carbon dioxide, and the Xanthoceras sorbifolia seeds can be extracted by using carbon dioxide.

[0005] Furthermore, the stirring assembly includes a bullet-shaped cabin and three stirring rods. The bullet-shaped cabin is sealed and slidably connected to the bottom of the extraction kettle. The three stirring rods are located inside the extraction kettle. The three stirring rods are evenly distributed in a ring shape and are installed on the bullet-shaped cabin. Each stirring rod is spirally provided with a number of stirring blades. A driven bevel gear is provided at one end of each stirring rod. The driven bevel gear is located inside the bullet-shaped cabin. The angle between the axis of each stirring rod and the horizontal plane is 21°. The control system opens the solenoid valve on the carbon dioxide tube, and the supercritical carbon dioxide enters the extraction kettle and contacts the Xanthoceras sorbifolia seeds. After the stirring assembly is started, the Xanthoceras sorbifolia seeds are stirred.

[0006] Furthermore, the stirring assembly includes a double-headed motor, a driving bevel gear, a driving gear and a sliding gear. The double-headed motor, the driving bevel gear, the driving gear and the sliding gear are all arranged inside the bullet-shaped cabin. The driving bevel gear and the driving gear are respectively arranged at the upper end and the lower end of the double-headed motor. The driving bevel gear is meshed and connected with each driven bevel gear. The sliding gear is rotatably installed at the bottom of the bullet-shaped cabin. The sliding gear passes through the side wall of the bullet-shaped cabin. The double-headed motor drives the driving bevel gear and the driving gear to rotate. The driving bevel gear drives all the driven bevel gears to rotate. The driven bevel gear drives the stirring rod to rotate. The moving stirring blades stir and flip the Xanthoceras sorbifolia seeds so that they are fully in contact with carbon dioxide, thereby improving the extraction effect.

[0007] Furthermore, a sliding internal tooth groove is provided at the position where the bottom of the extraction kettle is slidably connected to the bullet-shaped cabin. The sliding gear is engaged with the sliding internal tooth groove, and the driving gear drives the sliding gear to rotate. Since the internal tooth groove is fixed, the bullet-shaped cabin as a whole rotates at the bottom of the extraction kettle, that is, while the stirring rod rotates, the bullet-shaped cabin drives all the stirring rods to perform circular motion in the extraction kettle, covering the stirring range to the entire interior of the extraction kettle.

[0008] Furthermore, the stirring assembly includes an adapter plate, a pair of T-shaped connecting plates, a servo motor, a worm, a worm wheel and a pair of cranks. The adapter plate is rotatably mounted on the bottom of the bullet-shaped cabin, a pair of the T-shaped connecting plates are symmetrically mounted on the bottom of the adapter plate, each T-shaped connecting plate is provided with a straight groove, the worm is connected to the motor shaft of the servo motor, a pair of the cranks are symmetrically mounted on both sides of the worm wheel, each crank is provided with a cylindrical pin, the cylindrical pin on the crank is slidably mounted in the straight groove on the T-shaped connecting plate, the worm is meshed with the worm wheel, the servo motor is energized to drive the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the crank to move, and the crank The cylindrical pin is used to drive the T-shaped connecting plate to move up and down, that is, the adapter plate drives the bullet-shaped cabin to move up and down. During the up and down reciprocating movement of the bullet-shaped cabin at the bottom of the extraction kettle, the sliding gear still maintains sliding engagement with the internal tooth groove, so the lifting and lowering movement and the rotational movement of the bullet-shaped cabin will not interfere with each other. Through the setting of the stirring component, the stirring rod can rotate in the extraction kettle while rotating. The stirring rod also has the function of moving up and down. The stirring rod stirs the Xanthoceras sorbifolia seeds through three-dimensional movement, mixing the Xanthoceras sorbifolia seeds and carbon dioxide very evenly, making the contact between the two more sufficient and thorough, thereby improving the extraction efficiency of the Xanthoceras sorbifolia seeds.

[0009] Furthermore, four through holes are provided at the bottom of the extraction kettle, and the four through holes are evenly distributed in a circular shape. A chute is provided inside the extraction kettle shell corresponding to each circular hole. The separation component includes several filter plates. The filter plate is slidingly and sealably installed inside each chute. The filter plates seal the circular holes. The extracted solution flows downward through the circular holes at the bottom of the extraction kettle. The filter plates block the Xanthoceras sorbifolia crushed materials to ensure that the extraction solution without solid impurities flows out. The extraction solution enters the temporary storage tank through the discharge pipe and waits for subsequent processing.

[0010] Furthermore, the separation assembly includes four hydraulic cylinders, which are installed in the extraction kettle shell. The piston rods of the four hydraulic cylinders extend into four slide grooves respectively. The piston rods are connected to the filter plate. The four hydraulic cylinders are connected to the hydraulic system through pipelines.

[0011] Furthermore, a circular rotating groove is opened at the bottom of the extraction kettle corresponding to the opening of each circular hole, and the separation assembly includes four bevel gear turntables, each of which is rotatably installed in the circular rotating groove, and each bevel gear turntable is connected to a discharge pipe and a drainage hose, and each discharge pipe is rotatably and sealedly connected to a docking sleeve at one end away from the bevel gear turntable, and the axis line of the docking sleeve coincides with the axis line of the bevel gear turntable, and the docking sleeve is connected to the temporary storage tank through a pipeline. After the extraction is completed, the solenoid valve on the carbon dioxide tube is closed, the hollow cup motor drives the bevel gear ring to rotate, and the bevel gear ring drives all the bevel gear turntables to rotate. In the extraction state, the discharge pipe is aligned with the circular hole at the bottom of the extraction kettle. After the bevel gear turntable rotates, the drainage hose will be aligned with the circular hole at the bottom of the extraction kettle, and the pipe mouth of the discharge pipe is closed. The hydraulic system controls all hydraulic cylinders to start working, and the hydraulic cylinder draws the filter element plate into the slide groove. The circular hole at the bottom of the extraction kettle is opened, and the inside of the extraction kettle is connected to the drainage hose.

[0012] Furthermore, the separation component also includes a bevel gear ring, which is installed at the bottom of the extraction kettle. A hollow cup motor is arranged between the bevel gear ring and the extraction kettle. The bevel gear ring is meshed and connected with each of the bevel gear turntables. The hollow cup motor is connected to a control system through a circuit. The control system opens the solenoid valve on the clean water pipe, and clean water is flushed into the extraction kettle. The Xanthoceras sorbifolia seed residue is flushed into the drainage hose along with the clean water, thereby realizing automatic cleaning of the inside of the extraction kettle.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By setting up the stirring assembly, the stirring rod can rotate while circulating in the extraction kettle. The stirring rod also has the function of moving up and down. The stirring rod stirs the Xanthoceras sorbifolia seeds through three-dimensional movement, and mixes and stirs the Xanthoceras sorbifolia seeds and carbon dioxide very evenly, making the contact between the two more sufficient and thorough, thereby improving the extraction efficiency of the Xanthoceras sorbifolia seeds; by controlling the rotation of the bevel gear turntable, the drainage hose will be aligned with the circular hole at the bottom of the extraction kettle, and the mouth of the discharge pipe will be closed. The control system will open the solenoid valve on the clean water pipe, and clean water will be flushed into the extraction kettle. The Xanthoceras sorbifolia seed residue will be flushed into the drainage hose along with the clean water, thereby realizing automatic cleaning of the inside of the extraction kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall appearance structure of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 2 The overall appearance structure of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 3 Schematic diagram of the internal structure of the present invention Figure 1 ;

[0018] Figure 4 Schematic diagram of the internal structure of the present invention Figure 2 ;

[0019] Figure 5 Schematic diagram of the internal structure of the present invention Figure 3 ;

[0020] Figure 6 The structure of the stirring component of the present invention is schematically shown. Figure 1 ;

[0021] Figure 7 The structure of the stirring component of the present invention is schematically shown. Figure 2 ;

[0022] Figure 8 Schematic diagram of the bottom structure of the extraction kettle of the present invention.

[0023] In the figure: 1. Extraction kettle; 2. Carbon dioxide pipe; 3. Clean water pipe; 4. Hydraulic cylinder; 5. Filter plate; 6. Bevel gear turntable; 7. Discharge pipe; 8. Docking sleeve; 9. Drain hose; 10. Bevel gear ring; 11. Bullet-shaped cabin; 12. Double-head motor; 13. Driving bevel gear; 14. Driven bevel gear; 15. Stirring rod; 16. Stirring blade; 17. Driving gear; 18. Sliding gear; 19. Adapter plate; 20. T-shaped connecting plate; 21. Servo motor; 22. Worm; 23. Worm wheel; 24. Crank. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0025] Example: Figures 1-8As shown, the present invention provides a technical solution, a supercritical Xanthoceras sorbifolia seed extraction device, comprising an extraction kettle 1, a carbon dioxide tube 2, a clean water tube 3, a stirring assembly and a separation assembly, a feed port is provided on the top of the extraction kettle 1, a sealing cover (not shown in the figure) is provided at the feed port, the carbon dioxide tube 2 and the clean water tube 3 are symmetrically connected to the upper end of the extraction kettle 1, and the carbon dioxide tube 2 and the clean water tube 3 are both provided with solenoid valves, the separation assembly is slidably arranged at the bottom of the extraction kettle 1, the separation assembly and the extraction kettle 1 are slidably and sealedly installed, the stirring assembly stirs the inside of the extraction kettle 1, the operator dries the Xanthoceras sorbifolia seeds to be extracted and crushes them into small particles, the efficiency of the Xanthoceras sorbifolia extraction can be improved by drying and crushing, the crushed Xanthoceras sorbifolia seeds are put into the extraction kettle 1 through the feed port, the sealing cover is closed firmly, the inside of the extraction kettle 1 reaches a sealed state, the pressure and temperature inside the tank body are increased to the supercritical pressure and temperature of carbon dioxide, and the Xanthoceras sorbifolia seeds can be extracted by using carbon dioxide.

[0026] The stirring assembly includes a bullet-shaped cabin 11 and three stirring rods 15. The bullet-shaped cabin 11 is sealed and slidably connected to the bottom of the extraction kettle 1. The three stirring rods 15 are located inside the extraction kettle 1. The three stirring rods 15 are evenly distributed in an annular shape and are all installed on the bullet-shaped cabin 11. A plurality of stirring blades 16 are spirally arranged on each stirring rod 15. A driven bevel gear 14 is provided at one end of each stirring rod 15. The driven bevel gear 14 is located inside the bullet-shaped cabin 11. The angle between the axis of each stirring rod 15 and the horizontal plane is 21°. The stirring assembly includes a double-headed motor 12, a driving bevel gear 13, a driving gear 17 and a sliding gear 18. The double-headed motor 12, the driving bevel gear 13, the driving gear 17 and the sliding gear 18 are all arranged inside the bullet-shaped cabin 11. The driving bevel gear 1 3 and the driving gear 17 are respectively arranged at the upper and lower ends of the double-headed motor 12, the driving bevel gear 13 is meshed with each driven bevel gear 14, the sliding gear 18 is rotatably installed at the bottom of the bullet-shaped cabin 11, and the sliding gear 18 passes through the side wall of the bullet-shaped cabin 11. The control system opens the solenoid valve on the carbon dioxide tube 2, and supercritical carbon dioxide enters the extraction kettle 1 and contacts the Xanthoceras sorbifolia seeds. After the stirring component is started, the Xanthoceras sorbifolia seeds are stirred. The double-headed motor 12 drives the driving bevel gear 13 and the driving gear 17 to rotate, the driving bevel gear 13 drives all the driven bevel gears 14 to rotate, and the driven bevel gear 14 drives the stirring rod 15 to rotate. The moving stirring blades 16 stir and flip the Xanthoceras sorbifolia seeds, so that they are fully in contact with the carbon dioxide, thereby improving the extraction effect.

[0027] A sliding inner tooth groove is provided at the position where the bottom of the extraction kettle 1 is slidably connected to the bullet-shaped cabin body 11, and the sliding gear 18 is engaged with the sliding inner tooth groove. The stirring assembly includes an adapter plate 19, a pair of T-shaped connecting plates 20, a servo motor 21, a worm 22, a worm wheel 23 and a pair of cranks 24. The adapter plate 19 is rotatably mounted on the bottom of the bullet-shaped cabin body 11, and a pair of T-shaped connecting plates 20 are symmetrically mounted on the bottom of the adapter plate 19. Each T-shaped connecting plate 20 has a straight groove. The worm gear 18 is engaged with the sliding inner tooth groove. The rod 22 is connected to the motor shaft of the servo motor 21. A pair of cranks 24 are symmetrically mounted on both sides of the worm gear 23. A cylindrical pin is provided on each crank 24. The cylindrical pin on the crank 24 is slidably mounted in the straight groove on the T-shaped connecting plate 20. The worm 22 is meshed with the worm gear 23. The driving gear 17 drives the sliding gear 18 to rotate. Due to the fixed internal tooth groove, the bullet-shaped cabin 11 rotates as a whole at the bottom of the extraction kettle 1, that is, while the stirring rod 15 rotates, the bullet-shaped cabin 11 drives the All stirring rods 15 are driven to perform circular motion in the extraction kettle 1, covering the stirring range to the entire interior of the extraction kettle 1. The servo motor 21 is energized to drive the worm 22 to rotate, the worm 22 drives the worm gear 23 to rotate, and the worm gear 23 drives the crank 24 to move. The crank 24 uses a cylindrical pin to drive the T-shaped connecting plate 20 to reciprocate up and down, that is, the adapter plate 19 drives the bullet-shaped cabin 11 to reciprocate up and down. During the up and down reciprocating motion of the bullet-shaped cabin 11 at the bottom of the extraction kettle 1, the sliding gear 18 still maintains sliding engagement with the internal tooth groove, so that the lifting and lowering motion and the rotational motion of the bullet-shaped cabin 11 will not interfere with each other. Through the arrangement of the stirring assembly, the stirring rod 15 can rotate while circulating in the extraction kettle 1. The stirring rod 15 also has the function of moving up and down. The stirring rod 15 stirs the Xanthoceras sorbifolia seeds through three-dimensional motion, mixing and stirring the Xanthoceras sorbifolia seeds and carbon dioxide very evenly, making the contact between the two more sufficient and thorough, thereby improving the extraction efficiency of the Xanthoceras sorbifolia seeds.

[0028] The bottom of the extraction kettle 1 is provided with four through holes, which are evenly distributed in a circular shape. A chute is provided inside the shell of the extraction kettle 1 corresponding to each circular hole. The separation component includes several filter plates 5. A filter plate 5 is installed in each chute for sliding sealing. The filter plate 5 blocks the circular hole. The separation component includes four hydraulic cylinders 4. The four hydraulic cylinders 4 are installed in the shell of the extraction kettle 1. The piston rods of the four hydraulic cylinders 4 extend into the four chute respectively. The piston rods are connected to the filter plate 5. The four hydraulic cylinders 4 are connected to the hydraulic system through pipelines. A circular rotating groove is provided at the bottom of the extraction kettle 1 corresponding to the opening of each circular hole. The separation component includes four bevel gear turntables 6. Each circular A bevel gear turntable 6 is rotatably installed in the rotating trough, and each bevel gear turntable 6 is connected to a discharge pipe 7 and a drainage hose 9. The end of each discharge pipe 7 away from the bevel gear turntable 6 is rotatably and sealedly connected to a docking sleeve 8. The axis of the docking sleeve 8 coincides with the axis of the bevel gear turntable 6. The docking sleeve 8 is connected to the temporary storage tank (not shown in the figure) through a pipeline. The separation component also includes a bevel gear ring 10, which is installed at the bottom of the extraction kettle 1. A hollow cup motor (not shown in the figure) is arranged between the bevel gear ring 10 and the extraction kettle 1. The bevel gear ring 10 is meshed with each bevel gear turntable 6, and the hollow cup motor is connected to a control system through a circuit.

[0029] The extracted solution flows downward through the circular hole at the bottom of the extraction kettle 1. The filter plate 5 blocks the Xanthoceras sorbifolia fragments to ensure that the extracted solution without solid impurities flows out. The extracted solution enters the temporary storage tank through the discharge pipe 7 and waits for subsequent processing. After the extraction is completed, the solenoid valve on the carbon dioxide tube 2 is closed, and the hollow cup motor drives the bevel gear ring 10 to rotate. The bevel gear ring 10 drives all the bevel gear turntables 6 to rotate. In the extraction state, the discharge pipe 7 is aligned with the circular hole at the bottom of the extraction kettle 1. After the bevel gear turntable 6 rotates, the drainage hose 9 will be aligned with the circular hole at the bottom of the extraction kettle 1, and the pipe mouth of the discharge pipe 7 is closed. The hydraulic system controls all the hydraulic cylinders 4 to start working. The hydraulic cylinder 4 draws the filter plate 5 into the chute, and the circular hole at the bottom of the extraction kettle 1 is opened. The interior of the extraction kettle 1 is connected to the drainage hose 9. The control system opens the solenoid valve on the clean water pipe 3, and clean water is flushed into the extraction kettle 1. The Xanthoceras sorbifolia seed residue is flushed into the drainage hose 9 with the clean water, thereby achieving automatic cleaning of the interior of the extraction kettle 1.

[0030] The working principle of the present invention is as follows: the operator dries the Xanthoceras sorbifolia seeds to be extracted and crushes them into small particles. By drying and crushing, the efficiency of Xanthoceras sorbifolia extraction can be improved. The crushed Xanthoceras sorbifolia is put into the extraction kettle 1 through the feed port, the sealing lid is closed firmly, the interior of the extraction kettle 1 reaches a sealed state, the pressure and temperature inside the tank body are increased to the supercritical pressure and temperature of carbon dioxide, and the Xanthoceras sorbifolia seeds can be extracted with carbon dioxide. The control system opens the solenoid valve on the carbon dioxide tube 2, and the supercritical carbon dioxide enters the extraction kettle 1 and contacts the Xanthoceras sorbifolia seeds. After the stirring component is started, the Xanthoceras sorbifolia seeds are stirred. The double-headed motor 12 drives the active bevel gear 13 and the active gear 17 to rotate. The active bevel gear 13 drives all the driven bevel gears 14 to rotate. The driven bevel gear 14 drives the stirring rod 15 to rotate. The moving stirring blades 16 stir and turn the Xanthoceras sorbifolia seeds to fully contact with the carbon dioxide, thereby improving the extraction effect.

[0031] The driving gear 17 drives the sliding gear 18 to rotate. Since the internal tooth groove is fixed, the bullet-shaped cabin 11 rotates as a whole at the bottom of the extraction kettle 1. That is, while the stirring rod 15 rotates, the bullet-shaped cabin 11 drives all the stirring rods 15 to make a circular motion in the extraction kettle 1, covering the stirring range to the entire interior of the extraction kettle 1. The servo motor 21 is energized to drive the worm 22 to rotate, the worm 22 drives the worm gear 23 to rotate, and the worm gear 23 drives the crank 24 to move. The crank 24 uses the cylindrical pin to drive the T-shaped connecting plate 20 to reciprocate up and down, that is, the adapter plate 19 drives the bullet-shaped cabin 11 up and down. During the reciprocating motion of the bullet-shaped cabin 11 at the bottom of the extraction kettle 1, the sliding gear 18 still maintains sliding engagement with the internal tooth groove, so the lifting and lowering motion and the rotational motion of the bullet-shaped cabin 11 will not interfere with each other. Through the setting of the stirring component, the stirring rod 15 can rotate in the extraction kettle 1 while rotating. The stirring rod 15 also has the function of moving up and down. The stirring rod 15 stirs the Xanthoceras sorbifolia seeds through three-dimensional motion, and mixes and stirs the Xanthoceras sorbifolia seeds and carbon dioxide very evenly, making the contact between the two more sufficient and thorough, thereby improving the extraction efficiency of the Xanthoceras sorbifolia seeds.

[0032] The extracted solution flows downward through the circular hole at the bottom of the extraction kettle 1. The filter plate 5 blocks the Xanthoceras sorbifolia fragments to ensure that the extracted solution without solid impurities flows out. The extracted solution enters the temporary storage tank through the discharge pipe 7 and waits for subsequent processing. After the extraction is completed, the solenoid valve on the carbon dioxide tube 2 is closed, and the hollow cup motor drives the bevel gear ring 10 to rotate. The bevel gear ring 10 drives all the bevel gear turntables 6 to rotate. In the extraction state, the discharge pipe 7 is aligned with the circular hole at the bottom of the extraction kettle 1. After the bevel gear turntable 6 rotates, the drainage hose 9 will be aligned with the circular hole at the bottom of the extraction kettle 1, and the pipe mouth of the discharge pipe 7 is closed. The hydraulic system controls all the hydraulic cylinders 4 to start working. The hydraulic cylinder 4 draws the filter plate 5 into the chute, and the circular hole at the bottom of the extraction kettle 1 is opened. The interior of the extraction kettle 1 is connected to the drainage hose 9. The control system opens the solenoid valve on the clean water pipe 3, and clean water is flushed into the extraction kettle 1. The Xanthoceras sorbifolia seed residue is flushed into the drainage hose 9 with the clean water, thereby achieving automatic cleaning of the interior of the extraction kettle 1.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A supercritical Xanthoceras sorbifolia seed extraction device, characterized by: The invention comprises an extraction kettle (1), a carbon dioxide pipe (2), a clean water pipe (3), a stirring assembly and a separation assembly. The top of the extraction kettle (1) is provided with a feed port, and a sealing cover is provided at the feed port. The carbon dioxide pipe (2) and the clean water pipe (3) are symmetrically connected to the upper end of the extraction kettle (1). Both the carbon dioxide pipe (2) and the clean water pipe (3) are provided with electromagnetic valves. The separation assembly is slidably arranged at the bottom of the extraction kettle (1). The separation assembly and the extraction kettle (1) are slidably and sealedly installed. The stirring assembly stirs the interior of the extraction kettle (1).

2. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 1, characterized in that: The stirring assembly comprises a bullet-shaped chamber (11) and three stirring rods (15), wherein the bullet-shaped chamber (11) is sealed and slidably connected to the bottom of the extraction kettle (1), and the three stirring rods (15) are located inside the extraction kettle (1). The three stirring rods (15) are evenly distributed in a ring shape and are installed on the bullet-shaped chamber (11), and each stirring rod (15) is spirally provided with a plurality of stirring blades (16). A driven bevel gear (14) is provided at one end of each stirring rod (15), and the driven bevel gear (14) is located inside the bullet-shaped chamber (11). The angle between the axis of each stirring rod (15) and the horizontal plane is 21 degrees.

3. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 2, characterized in that: The stirring assembly comprises a double-headed motor (12), a driving bevel gear (13), a driving gear (17) and a sliding gear (18). The double-headed motor (12), the driving bevel gear (13), the driving gear (17) and the sliding gear (18) are all arranged inside the bullet-shaped cabin (11). The driving bevel gear (13) and the driving gear (17) are respectively arranged at the upper end and the lower end of the double-headed motor (12). The driving bevel gear (13) is meshed and connected with each driven bevel gear (14). The sliding gear (18) is rotatably mounted on the bottom of the bullet-shaped cabin (11), and the sliding gear (18) passes through the side wall of the bullet-shaped cabin (11).

4. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 3, characterized in that: A sliding inner tooth groove is provided at a position where the bottom of the extraction kettle (1) is slidably connected to the bullet-shaped cabin (11), and the sliding gear (18) is meshed with the sliding inner tooth groove.

5. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 2, characterized in that: The stirring assembly comprises an adapter plate (19), a pair of T-shaped connecting plates (20), a servo motor (21), a worm (22), a worm wheel (23) and a pair of cranks (24), wherein the adapter plate (19) is rotatably mounted on the bottom of the bullet-shaped cabin (11), a pair of T-shaped connecting plates (20) are symmetrically mounted on the bottom of the adapter plate (19), each T-shaped connecting plate (20) is provided with a straight groove, the worm (22) is connected to the motor shaft of the servo motor (21), the pair of cranks (24) are symmetrically mounted on both sides of the worm wheel (23), each crank (24) is provided with a cylindrical pin, the cylindrical pin on the crank (24) is slidably mounted in the straight groove on the T-shaped connecting plate (20), and the worm (22) is meshedly connected with the worm wheel (23).

6. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 1, characterized in that: The bottom of the extraction kettle (1) is provided with four through holes, which are evenly distributed in a circular shape. A slide groove is provided inside the shell of the extraction kettle (1) corresponding to each circular hole. The separation component includes a plurality of filter core plates (5). The filter core plate (5) is slidingly and sealingly installed inside each slide groove, and the filter core plate (5) blocks the circular hole.

7. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 6, characterized in that: The separation assembly comprises four hydraulic cylinders (4), the four hydraulic cylinders (4) being installed in the housing of the extraction kettle (1), the piston rods of the four hydraulic cylinders (4) respectively extending into four slide grooves, the piston rods being connected to the filter plate (5), and the four hydraulic cylinders (4) being connected to the hydraulic system via pipelines.

8. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 6, characterized in that: A circular groove is provided at the bottom of the extraction kettle (1) corresponding to the opening of each circular hole. The separation component includes four bevel gear turntables (6). The bevel gear turntable (6) is rotatably installed in each circular groove. A discharge pipe (7) and a drainage hose (9) are connected to each bevel gear turntable (6). An end of each discharge pipe (7) away from the bevel gear turntable (6) is rotatably and sealingly connected to a docking sleeve (8). The axis of the docking sleeve (8) coincides with the axis of the bevel gear turntable (6). The docking sleeve (8) is connected to the temporary storage tank through a pipeline.

9. The supercritical Xanthoceras sorbifolia seed extraction device according to claim 8, characterized in that: The separation assembly further comprises a bevel gear ring (10), the bevel gear ring (10) being mounted on the bottom of the extraction kettle (1), a coreless cup motor being arranged between the bevel gear ring (10) and the extraction kettle (1), the bevel gear ring (10) being meshedly connected with each of the bevel gear turntables (6), and the coreless cup motor being connected to a control system via an electrical circuit.

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