An integrated device for extracting and purifying icariin

Abstract

This invention belongs to the technical field of traditional Chinese medicine purification equipment, and particularly relates to an integrated device for extracting and purifying icariin from epimedium. The device includes a frame with a vertical pulverizing mechanism mounted on it. An adjustment unit is located between the top of the vertical pulverizing mechanism and the frame, allowing for adjustment of the pulverization degree. A percolation mechanism and a collection mechanism are sequentially connected to the bottom outlet of the vertical pulverizing mechanism. A conveying unit connects the inlet of the percolation mechanism to the bottom outlet of the vertical pulverizing mechanism. The percolation mechanism includes a percolation cylinder containing a sieving unit, a circulating sieving unit, and a pressurized sieving unit. The percolation efficiency is adjusted through these three units. This invention can precisely control the size of epimedium leaves while fully utilizing the epimedium, effectively improving purification and resource utilization rates.

Description

Technical Field

[0001] This invention belongs to the technical field of traditional Chinese medicine purification equipment, and particularly relates to an integrated equipment for the extraction and purification of icariin. Background Technology

[0002] Studies have shown that Epimedium possesses various pharmacological effects, including anti-tumor activity, enhanced immune function, anti-aging, and improved endocrine function. The ideal powder size for the medicinal material is generally coarse or the coarsest possible powder. If the powder is too fine, it can cause blockages and prevent liquid extraction; if it is too coarse, the residue is difficult to compact, resulting in high solvent consumption and poor extraction efficiency. Controlling the powder size during percolation is challenging. Furthermore, the residue usually needs to be replaced after percolation; discarding large quantities would be wasteful. Therefore, there is an urgent need for an integrated equipment for the extraction and purification of epimedium glycosides that can precisely control the powder size of the epimedium leaves while fully utilizing the material, effectively improving purification and resource utilization rates. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated device for the extraction and purification of icariin, so as to solve the above-mentioned problems and achieve the goal of effectively improving purification efficiency and making full use of resources.

[0004] To achieve the above objectives, the present invention provides the following solution: an integrated device for extracting and purifying icariin, comprising a frame, a vertical pulverizing mechanism disposed on the frame, an adjustment unit disposed between the top of the vertical pulverizing mechanism and the frame, the degree of pulverization of the vertical pulverizing mechanism being adjusted by the adjustment unit, a percolation mechanism and a collection mechanism being sequentially connected to the bottom outlet of the vertical pulverizing mechanism, and a conveying unit being connected between the inlet of the percolation mechanism and the bottom outlet of the vertical pulverizing mechanism;

[0005] The percolation mechanism includes a percolation cylinder, which is equipped with a filtration unit, a circulating filtration unit, and a pressurized filtration unit. The percolation efficiency is adjusted through the filtration unit, the circulating filtration unit, and the pressurized filtration unit.

[0006] Preferably, the filtration unit includes an upper filter screen and a lower filter screen arranged sequentially from top to bottom in the percolation cylinder. The percolation cylinder is divided into a third cavity, a second cavity, and a fourth cavity from top to bottom. The third cavity is located above the upper filter screen, the second cavity is located between the upper filter screen and the lower filter screen, and the fourth cavity is located below the lower filter screen. The second cavity is connected to the discharge port of the vertical crushing mechanism via a conveying unit. An extractant inlet is provided on the side wall of the third cavity, and an extractant outlet is provided at the bottom of the fourth cavity.

[0007] Preferably, the circulating filtration unit includes several hydraulic cylinders vertically fixedly connected to the top of the outer side of the percolation cylinder, and a pressure block vertically slidably connected in the third cavity. The telescopic ends of the hydraulic cylinders pass through the top wall of the percolation cylinder and are also fixedly connected to the top surface of the pressure block. The pressure block has a vertically opened circulation channel, and a one-way valve is fixedly connected in the circulation channel. The top of the pressure block is connected to the bottom of the pressure block through the one-way valve. The top of the pressure block is connected to the fourth cavity through a third pipe. A first solenoid valve is fixedly connected to the third pipe, and the extract is transported into the percolation cylinder through the bottom of the pressure block.

[0008] Preferably, the pressurized filtration unit includes an inner cylinder coaxially fixedly connected to the middle of the inner side of the percolation cylinder, an upper filter screen slidably connected axially to the upper inner side of the inner cylinder, a lower filter screen slidably connected axially to the lower inner side of the inner cylinder, an upper grid plate fixedly connected to the top surface of the upper filter screen, a lower grid plate fixedly connected to the bottom surface of the lower filter screen, the bottom end of the pressure block corresponding to the top surface of the upper grid plate and also adapted to the inner sidewall of the inner cylinder, and a plurality of synchronization components are provided between the top surface of the upper grid plate and the bottom surface of the lower grid plate, the plurality of synchronization components being driven by the pressure block through a plurality of hydraulic cylinders.

[0009] Preferably, the synchronization component includes a channel axially formed within the side wall of the inner cylinder, a fixing block fixedly connected within the channel, a bidirectional screw threaded vertically through the fixing block, the middle end of the bidirectional screw being circumferentially rotatably connected to the fixing block, an upper blind hole above the fixing block, a lower blind hole below the fixing block, an upper connecting rod vertically fixedly connected to the top edge of the upper grid plate, an upper slider fixedly connected to the top end of the upper connecting rod, the upper slider being threaded onto the bidirectional screw and also adapted to the upper blind hole, a third spring fixedly connected between the bottom of the upper slider and the fixing block, a lower connecting rod vertically fixedly connected to the bottom edge of the lower grid plate, a lower slider fixedly connected to the bottom end of the lower connecting rod, the lower slider being threaded onto the bidirectional screw and also adapted to the lower blind hole, a fourth spring fixedly connected between the top of the lower slider and the fixing block.

[0010] Preferably, the vertical crushing mechanism includes a crushing cylinder fixedly connected to the frame, the middle dimension of the crushing cylinder being smaller than the dimensions of both ends, a crushing roller being disposed inside the crushing cylinder, a gap being provided between the crushing roller and the inner wall of the crushing cylinder, a top cover being axially slidably connected to the top inner side of the crushing cylinder, the bottom surface of the top cover being rotatably connected to the top end of the crushing roller, a first motor being fixedly connected to the top surface of the top cover, the rotation shaft of the first motor passing through the top cover and being coaxially fixedly connected to the top end of the crushing roller, the top cover being fixedly connected to the adjusting unit, and the crushing cylinder being connected to the conveying unit through a first pipe.

[0011] Preferably, a first cavity is formed on the inner side wall of the middle end of the crushing cylinder, and a spiral blade is fixedly connected to the inner side wall of the middle end of the crushing roller, the spiral blade being located in the first cavity.

[0012] Preferably, the adjustment unit includes a sliding bracket slidably connected to the frame, the bottom end of the sliding bracket being fixedly connected to the top cover, a second motor being fixedly connected to the top of the frame, a lead screw being fixedly connected to the rotating shaft of the second motor, and the top end of the sliding bracket being threaded onto the bottom end of the lead screw.

[0013] Preferably, the conveying unit includes a three-way valve body fixedly connected to the bottom end of the first pipe, a second solenoid valve fixedly connected to the first pipe, the three-way valve body being connected to the extract liquid through the second pipe, the other end of the three-way valve body being fixedly connected to a vertical rigid pipe, the bottom end of the vertical rigid pipe passing through the top cover and the pressure block and also fixedly connected to the top of the second cavity, and a valve core assembly being provided inside the three-way valve body.

[0014] Preferably, the valve core assembly includes a valve core slidably connected to the body of the three-way valve. The valve core has a liquid outlet channel at its end furthest from the outlet of the second pipe. The outlet of the liquid outlet channel is located close to the second pipe. A ball bearing is fitted into the inlet of the liquid outlet channel. A first spring abuts against the valve core on the side of the ball bearing furthest from the liquid outlet channel. A baffle is fixedly connected to the top of the valve core at its end furthest from the outlet of the first pipe. The baffle is located near the liquid inlet direction and corresponds to the outlet of the first pipe. The baffle and the liquid outlet channel are located on the same side of the valve core. A groove is formed on the bottom side of the three-way valve body along the liquid inlet direction. A pin is slidably connected within the groove. A second spring is fixedly connected to the bottom end of the pin and the end of the groove furthest from the valve core. The top end of the pin is fitted into the outlet of the liquid outlet channel and corresponds to the ball bearing. The elastic force of the first spring is greater than that of the second spring.

[0015] This invention offers the following technical advantages: The vertical pulverizing mechanism primarily pulverizes Epimedium leaves to ensure uniform fragment size; the adjusting unit adjusts the pulverization degree of the Epimedium leaves to suit different extraction requirements; the percolation mechanism extracts the components from Epimedium. Specifically, the screening unit purifies icariin using dynamic extract, the circulating screening unit repeatedly uses the extract through self-circulation (primarily for applications with decreasing component concentration), and the pressure screening unit further improves purification efficiency by compressing the Epimedium fragments, maximizing resource utilization and avoiding waste; the collecting mechanism processes the extract to obtain the final icariin. Overall, this invention precisely controls the size of Epimedium leaves while fully utilizing Epimedium, effectively improving purification and resource utilization rates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the integrated extraction and purification device of the present invention;

[0018] Figure 2 for Figure 1 A magnified view of part A in the image;

[0019] Figure 3 This is a cross-sectional schematic diagram of the vertical crushing mechanism of the present invention;

[0020] Figure 4 This is a cross-sectional schematic diagram of the percolation mechanism of the present invention;

[0021] The components include: 1. Frame; 2. Crushing cylinder; 3. First motor; 4. Sliding support; 5. Second motor; 6. Vertical rigid pipe; 7. Hydraulic cylinder; 8. Percolation cylinder; 9. First pipe; 10. Three-way valve body; 11. Second pipe; 12. Valve core; 13. First spring; 14. Ball bearing; 15. Ejector pin; 16. Slide groove; 17. Second spring; 18. Upper grinding block; 19. Top cover; 20. First cavity; 21. Spiral blade; 22. Middle grinding block; 23. 24. Lower grinding block; 25. Pressure block; 26. Upper slider; 27. Double-acting screw; 28. Upper connecting rod; 29. ​​Upper grid plate; 30. Upper filter screen; 31. Upper blind hole; 32. Second cavity; 33. Lower filter screen; 34. Lower grid plate; 35. Lower slider; 36. Lower blind hole; 37. Fourth cavity; 38. Lower connecting rod; 39. Third cavity; 40. Inner cylinder; 41. Third spring; 42. Fourth spring; 43. Circulation channel; 44. One-way valve; 45. Baffle. Detailed Implementation

[0022] 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.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figure 1-4 As shown, the present invention provides an integrated device for extracting and purifying icariin, including a frame 1, a vertical crushing mechanism is provided on the frame 1, an adjustment unit is provided between the top of the vertical crushing mechanism and the frame 1, the degree of crushing of the vertical crushing mechanism is adjusted by the adjustment unit, a percolation mechanism and a collection mechanism are sequentially connected to the bottom outlet of the vertical crushing mechanism, and a conveying unit is connected between the feed inlet of the percolation mechanism and the bottom outlet of the vertical crushing mechanism.

[0025] The percolation mechanism includes a percolation cylinder 8, which contains a filtration unit, a circulating filtration unit, and a pressurized filtration unit. The percolation efficiency is adjusted through the filtration unit, the circulating filtration unit, and the pressurized filtration unit.

[0026] The main function of the vertical pulverizing mechanism is to pulverize the leaves of Epimedium, ensuring uniform fragment size. The main function of the adjusting unit is to adjust the degree of pulverization of the Epimedium leaves to suit different extraction requirements. The main function of the percolation mechanism is to extract the components from Epimedium. Specifically, the screening unit purifies icariin using dynamic extract, the circulating screening unit reuses the extract repeatedly through self-circulation, primarily used when component concentration is low, and the pressure screening unit further improves purification efficiency by compressing the Epimedium fragments, fully utilizing resources and avoiding waste. The main function of the collection mechanism is to process the extract to obtain the final icariin. Overall, this application can precisely control the particle size of Epimedium leaves while fully utilizing Epimedium, effectively improving purification and resource utilization rates.

[0027] The scheme is further optimized. The filtration unit includes an upper filter screen 29 and a lower filter screen 32 arranged sequentially from top to bottom inside the percolation cylinder 8. The percolation cylinder 8 is divided into a third cavity 38, a second cavity 31 and a fourth cavity 36 from top to bottom. The third cavity 38 is located above the upper filter screen 29, the second cavity 31 is located between the upper filter screen 29 and the lower filter screen 32, and the fourth cavity 36 is located below the lower filter screen 32. The second cavity 31 is connected to the discharge port of the vertical crushing mechanism through the conveying unit. The side wall of the third cavity 38 is provided with an extract inlet, and the bottom of the fourth cavity 36 is provided with an extract outlet.

[0028] By delivering the extract into the third cavity 38, the epimedium in the second cavity 31 is continuously and dynamically soaked and discharged from the fourth cavity 36, thereby obtaining an epimedin solution with a certain concentration.

[0029] Further optimization of the scheme: the circulating filtration unit includes several hydraulic cylinders 7 vertically fixedly connected to the top of the outside of the percolation cylinder 8, and a pressure block 24 vertically slidably connected in the third cavity 38. The telescopic ends of the hydraulic cylinders 7 pass through the top wall of the percolation cylinder 8 and are also fixedly connected to the top surface of the pressure block 24. The pressure block 24 has a vertically opened circulation channel 42. A one-way valve 43 is fixedly connected in the circulation channel 42. The top of the pressure block 24 is connected to the bottom of the pressure block 24 through the one-way valve 43. The top of the pressure block 24 is connected to the fourth cavity 36 through a third pipe (not shown in the figure). A first solenoid valve (not shown in the figure) is fixedly connected to the third pipe. The extract is transported into the percolation cylinder 8 through the bottom of the pressure block 24.

[0030] Initially, the pressure block 24 is located at the top of the inner side of the third cavity 38, and the extract outlet is closed. When the concentration of the solution obtained through dynamic soaking decreases significantly, several hydraulic cylinders 7 are activated and extended, while the first solenoid valve is opened, allowing the extract located below the inner side of the third cavity 38 to enter the area above the pressure block 24 through the second cavity 31, the fourth cavity 36, and the third pipe. Then, several hydraulic cylinders 7 are activated and shortened in the opposite direction, while the first solenoid valve is closed, and the extract re-enters the area below the pressure block 24 through the circulation channel 42 and the one-way valve 43. The above process is repeated until the concentration of the extract decreases significantly again.

[0031] Further optimization of the scheme: the pressurized filtration unit includes an inner cylinder 39 coaxially fixedly connected to the middle of the inner side of the percolation cylinder 8; an upper filter screen 29 is axially slidably connected to the upper inner side of the inner cylinder 39; a lower filter screen 32 is axially slidably connected to the lower inner side of the inner cylinder 39; an upper grid plate 28 is fixedly connected to the top surface of the upper filter screen 29; a lower grid plate 33 is fixedly connected to the bottom surface of the lower filter screen 32; the bottom end of the pressure block 24 is correspondingly set to the top surface of the upper grid plate 28 and is also adapted to the inner side wall of the inner cylinder 39; several sets of synchronization components are set between the top surface of the upper grid plate 28 and the bottom surface of the lower grid plate 33; the several sets of synchronization components are driven by several hydraulic cylinders 7 and the pressure block 24.

[0032] When the concentration of the extract decreases significantly again, the first solenoid valve is opened, and several hydraulic cylinders 7 are activated and extended, driving the pressure block 24 to move downward until it abuts against the top surface of the upper grid plate 28, causing the upper filter screen 29 to move downward. As the upper grid plate 28 continues to move downward, several sets of synchronization components cause the lower grid plate 33 to push the lower filter screen 32 upward until pressure is generated between the upper filter screen 29 and the lower filter screen 32, that is, the Epimedium powder is squeezed, which helps the components in the powder to be fully extracted. When the pressure block 24 is driven upward, the upper filter screen 29 and the lower filter screen 32 gradually return to their initial state through the synchronization components. During the return process, the powder close to the upper filter screen 29 and the lower filter screen 32 separates from the contact surface, effectively avoiding the problem of clogging.

[0033] Further optimization of the scheme: The synchronous component includes a channel axially opened in the side wall of the inner cylinder 39, a fixed block fixedly connected in the channel, a bidirectional screw 26 vertically penetrating the fixed block, the middle end of the bidirectional screw 26 being circumferentially rotatably connected to the fixed block, an upper blind hole 30 above the fixed block, a lower blind hole 35 below the fixed block, an upper connecting rod 27 vertically fixedly connected to the top edge of the upper grid plate 28, an upper slider 25 fixedly connected to the top of the upper connecting rod 27, the upper slider 25 being threaded onto the bidirectional screw 26 and also adapted to the upper blind hole 30, a third spring 40 fixedly connected between the bottom of the upper slider 25 and the fixed block, a lower connecting rod 37 vertically fixedly connected to the bottom edge of the lower grid plate 33, a lower slider 34 fixedly connected to the bottom end of the lower connecting rod 37, the lower slider 34 being threaded onto the bidirectional screw 26 and also adapted to the lower blind hole 35, a fourth spring 41 fixedly connected between the top of the lower slider 34 and the fixed block.

[0034] The upper slider 25 and lower slider 34 are threadedly connected to the bidirectional screw 26 in a non-self-locking manner. When the upper grid plate 28 drives the upper connecting rod 27 and the upper slider 25 to move downward, it drives the bidirectional screw 26 to rotate, and at the same time drives the lower slider 34 to move upward, thereby driving the upper filter screen 29 and the lower filter screen 32 to move towards each other. During this movement, the third spring 40 and the fourth spring 41 are compressed synchronously. When the pressure block 24 moves upward, the driving force for the upper slider 25 to move downward disappears. Under the action of the rebound force of the third spring 40 and the fourth spring 41, the upper slider 25 is driven to move upward, and the lower slider 34 is driven to move downward, thereby causing the upper filter screen 29 and the lower filter screen 32 to automatically separate.

[0035] Further optimization of the scheme: The vertical crushing mechanism includes a crushing cylinder 2 fixedly connected to the frame 1. The middle dimension of the crushing cylinder 2 is smaller than the dimensions of both ends. A crushing roller is provided inside the crushing cylinder 2. A gap is provided between the crushing roller and the inner wall of the crushing cylinder 2. A top cover 19 is axially slidably connected to the top of the inner side of the crushing cylinder 2. The bottom surface of the top cover 19 is rotatably connected to the top end of the crushing roller. A first motor 3 is fixedly connected to the top surface of the top cover 19. The rotating shaft of the first motor 3 passes through the top cover 19 and is coaxially fixedly connected to the top end of the crushing roller. The top cover 19 is fixedly connected to the adjustment unit. The crushing cylinder 2 is connected to the conveying unit through the first pipe 9.

[0036] In a further optimized design, a first cavity 20 is provided on the inner side wall of the middle end of the crushing cylinder 2, and a spiral blade 21 is fixedly connected to the inner side wall of the middle end of the crushing roller, with the spiral blade 21 located inside the first cavity 20.

[0037] Initially, the gap between the crushing roller and the inner wall of the crushing cylinder 2 is the same. The first motor 3 is started, which drives the crushing roller to rotate and begin crushing the Epimedium. The powder in the middle is moved down by the spiral blades 21 to continue crushing, thereby ensuring the uniformity of the powder size. The crushing roller includes an upper grinding block 18, a middle grinding block 22 and a lower grinding block 23, which are coaxially fixedly connected from top to bottom. When it is necessary to adjust the size of the powder, the crushing roller is raised or lowered by the adjustment unit, thereby changing the gap between the upper grinding block 18, the lower grinding block 23 and the inner wall of the crushing cylinder 2. In order to ensure smooth feeding and improve the crushing effect, the gap between the upper grinding block 18 and the inner wall of the crushing cylinder 2 is not less than the gap between the lower grinding block 23 and the inner wall of the crushing cylinder 2.

[0038] Further optimization of the scheme: the adjustment unit includes a sliding bracket 4 that is slidably connected to the frame 1. The bottom end of the sliding bracket 4 is fixedly connected to the top cover 19. The top of the frame 1 is fixedly connected to a second motor 5. The rotating shaft of the second motor 5 is coaxially fixedly connected to a lead screw. The top end of the sliding bracket 4 is threaded onto the bottom end of the lead screw.

[0039] The scheme is further optimized. The delivery unit includes a three-way valve body 10 fixedly connected to the bottom end of the first pipe 9. A second solenoid valve (not shown in the figure) is fixedly connected to the first pipe 9. The three-way valve body 10 is connected to the extract liquid through the second pipe 11. The other end of the three-way valve body 10 is fixedly connected to a vertical rigid pipe 6. The bottom end of the vertical rigid pipe 6 passes through the top cover 19 and the pressure block 24 and is also fixedly connected to the top of the second cavity 31. A valve core assembly is provided inside the three-way valve body 10.

[0040] Further optimizing the design, the valve core assembly includes a valve core 12 slidably connected within the three-way valve body 10. A liquid outlet channel is provided at the end of the valve core 12 furthest from the outlet of the second pipe 11. The outlet of the liquid outlet channel is located near the second pipe 11. A ball bearing 14 is fitted to the inlet of the liquid outlet channel. A first spring 13 abuts against the side of the ball bearing 14 furthest from the liquid outlet channel and the valve core 12. A baffle 44 is fixedly connected to the top of the end of the valve core 12 closest to the outlet of the first pipe 9. The baffle 44 is located near the liquid inlet. The direction is also corresponding to the outlet of the first pipe 9. The baffle 44 and the liquid outlet channel are located on the same side of the valve core 12. The bottom side of the three-way valve body 10 is provided with a sliding groove 16 along the liquid inlet direction. A pin 15 is slidably connected in the sliding groove 16. The bottom end of the pin 15 and the end of the sliding groove 16 away from the valve core 12 are fixedly connected with a second spring 17. The top end of the pin 15 is adapted to the outlet of the liquid outlet channel and is also corresponding to the ball 14. The elastic force of the first spring 13 is greater than the elastic force of the second spring 17.

[0041] When the extract is transported through the second pipe 11, the second solenoid valve is closed. The pressure of the extract pushes the valve core assembly to move, gradually causing the baffle 44 to block the outlet at the bottom of the first pipe 9. The ball 14 contacts the ejector pin 15. Since the elastic force of the first spring 13 is greater than that of the second spring 17, the extract does not enter the vertical rigid pipe 6. As the ejector pin 15 slides to the end of the chute 16, the ejector pin 15 pushes open the ball 14, overcoming the elastic force of the first spring 13, allowing the extract to carry away the powder that has fallen into the three-way valve body 10 through the liquid outlet channel. During the transport process, the powder is blocked by the second solenoid valve and the baffle 44 and cannot continue to fall, preventing the extract from entering the first pipe 9 and avoiding affecting the powder in the first pipe 9.

[0042] The scheme was further optimized, and the collection mechanism included macroporous resin and ethanol water of different concentrations, as well as methanol water of different concentrations from Sephadex LH-20 gel columns.

[0043] Specifically, after collecting the leaching liquid, the crude icariin was purified by column purification using macroporous resin. After purification, it was eluted sequentially with 30%, 60%, and 90% ethanol, and the first eluent was collected. Then, the first eluent was chromatographically analyzed using a Sephadex LH-20 gel column. After chromatography, it was eluted sequentially with methanol aqueous solutions of concentrations of 20%, 40%, 60%, 80%, and 100%, and the second eluent was collected. The second eluent was concentrated under reduced pressure, dried, and pulverized to obtain icariin. The purification and refining were carried out sequentially by elution with two solutions. The above final purification steps use existing technology and will not be described in detail.

[0044] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An integrated device for extracting and purifying icariin, characterized in that: Includes a frame (1), on which a vertical crushing mechanism is provided. An adjustment unit is provided between the top of the vertical crushing mechanism and the frame (1). The degree of crushing is adjusted by the adjustment unit. A percolation mechanism and a collection mechanism are sequentially connected to the bottom outlet of the vertical crushing mechanism. A conveying unit is connected between the feed inlet of the percolation mechanism and the bottom outlet of the vertical crushing mechanism. The percolation mechanism includes a percolation cylinder (8), which is equipped with a filtration unit, a circulating filtration unit and a pressurized filtration unit. The percolation efficiency is adjusted by the filtration unit, the circulating filtration unit and the pressurized filtration unit. The percolation cylinder (8) is divided into a third cavity (38), a second cavity (31) and a fourth cavity (36) from top to bottom. The third cavity (38) has an extract inlet on its side wall and the fourth cavity (36) has an extract outlet at its bottom. The vertical crushing mechanism includes a crushing cylinder (2) fixedly connected to the frame (1), and the crushing cylinder (2) is connected to the conveying unit through a first pipe (9); The delivery unit includes a three-way valve body (10) fixedly connected to the bottom end of the first pipe (9). The three-way valve body (10) is connected to the extract liquid through a second pipe (11). A valve core assembly is provided inside the three-way valve body (10). The other end of the three-way valve body (10) is fixedly connected to a vertical rigid pipe (6), and the bottom end of the vertical rigid pipe (6) is fixedly connected to the top of the second cavity (31). The valve core assembly includes a valve core (12) slidably connected within the three-way valve body (10). A liquid outlet channel is provided at one end of the valve core (12) away from the outlet end of the second pipe (11). The outlet of the liquid outlet channel is located near the vertical rigid pipe (6). A ball bearing (14) is adapted to the inlet of the liquid outlet channel. A first spring (13) abuts against the valve core (12) on the side of the ball bearing (14) away from the liquid outlet channel. A baffle (44) is fixedly connected to the top of the valve core (12) near the outlet end of the first pipe (9). The baffle (44) is located near the liquid inlet direction and also against the first... The outlet of the pipe (9) is correspondingly set, the baffle (44) and the liquid outlet channel are located on the same side of the valve core (12), the bottom side of the three-way valve body (10) is provided with a sliding groove (16) along the liquid inlet direction, a pin (15) is slidably connected in the sliding groove (16), the bottom end of the pin (15) and the end of the sliding groove (16) away from the valve core (12) are fixedly connected with a second spring (17), the top end of the pin (15) is adapted to the outlet of the liquid outlet channel and is also correspondingly set with the ball (14), the elastic force of the first spring (13) is greater than the elastic force of the second spring (17); When the extract is delivered through the second pipe (11), the pressure of the extract pushes the valve core assembly to move, gradually causing the baffle (44) to block the outlet at the bottom of the first pipe (9). As the ejector pin (15) slides to the end of the groove (16), the ejector pin (15) pushes open the ball (14), overcoming the elastic force of the first spring (13), so that the extract carries away the powder that falls into the three-way valve body (10) through the liquid outlet channel.

2. The integrated equipment for extracting and purifying icariin according to claim 1, characterized in that: The filtration unit includes an upper filter screen (29) and a lower filter screen (32) arranged sequentially from top to bottom in the percolation cylinder (8). The third cavity (38) is located above the upper filter screen (29), the second cavity (31) is located between the upper filter screen (29) and the lower filter screen (32), and the fourth cavity (36) is located below the lower filter screen (32).

3. The integrated equipment for extracting and purifying icariin according to claim 2, characterized in that: The circulating filtration unit includes several hydraulic cylinders (7) vertically fixedly connected to the top of the outside of the percolation cylinder (8) and a pressure block (24) vertically slidably connected in the third cavity (38). The telescopic ends of the several hydraulic cylinders (7) pass through the top wall of the percolation cylinder (8) and are also fixedly connected to the top surface of the pressure block (24). The pressure block (24) is vertically provided with a circulation channel (42). A one-way valve (43) is fixedly connected in the circulation channel (42). The top of the pressure block (24) is connected to the bottom of the pressure block (24) through the one-way valve (43). The top of the pressure block (24) is connected to the fourth cavity (36) through a third pipe. A first solenoid valve is fixedly connected to the third pipe. The extract is transported into the percolation cylinder (8) through the bottom of the pressure block (24).

4. The integrated equipment for extracting and purifying icariin according to claim 3, characterized in that: The pressurized filtration unit includes an inner cylinder (39) coaxially fixedly connected to the middle of the inner side of the percolation cylinder (8), an upper filter screen (29) slidably connected to the upper inner side of the inner cylinder (39) along the axial direction, a lower filter screen (32) slidably connected to the lower inner side of the inner cylinder (39) along the axial direction, an upper grid plate (28) fixedly connected to the top surface of the upper filter screen (29), a lower grid plate (33) fixedly connected to the bottom surface of the lower filter screen (32), the bottom end of the pressure block (24) is correspondingly provided with the top surface of the upper grid plate (28) and is also adapted to the inner side wall of the inner cylinder (39), and a number of synchronization components are provided between the top surface of the upper grid plate (28) and the bottom surface of the lower grid plate (33), and the number of synchronization components are driven by the pressure block (24) through a number of hydraulic cylinders (7).

5. The integrated equipment for extracting and purifying icariin according to claim 4, characterized in that: The synchronization component includes a channel axially opened in the side wall of the inner cylinder (39), a fixing block is fixedly connected in the channel, a bidirectional screw (26) is vertically passed through the fixing block, the middle end of the bidirectional screw (26) is circumferentially rotatably connected to the fixing block, an upper blind hole (30) is provided above the fixing block, a lower blind hole (35) is provided below the fixing block, an upper connecting rod (27) is vertically fixedly connected to the top edge of the upper grid plate (28), an upper slider (25) is fixedly connected to the top end of the upper connecting rod (27), and the upper slider (25) is screwed... The upper slider (25) is threaded on the bidirectional screw (26) and also adapted to the upper blind hole (30). A third spring (40) is fixedly connected between the bottom of the upper slider (25) and the fixed block. A lower connecting rod (37) is vertically fixedly connected to the bottom edge of the lower grid plate (33). A lower slider (34) is fixedly connected to the bottom end of the lower connecting rod (37). The lower slider (34) is threaded on the bidirectional screw (26) and also adapted to the lower blind hole (35). A fourth spring (41) is fixedly connected between the top of the lower slider (34) and the fixed block.

6. The integrated equipment for extracting and purifying icariin according to claim 3, characterized in that: The middle dimension of the crushing cylinder (2) is smaller than the dimensions of both ends. A crushing roller is provided inside the crushing cylinder (2). A gap is provided between the crushing roller and the inner wall of the crushing cylinder (2). A top cover (19) is axially slidably connected to the top of the inner side of the crushing cylinder (2). The bottom surface of the top cover (19) is rotatably connected to the top end of the crushing roller. A first motor (3) is fixedly connected to the top surface of the top cover (19). The rotating shaft of the first motor (3) passes through the top cover (19) and is coaxially fixedly connected to the top end of the crushing roller. The top cover (19) is fixedly connected to the adjusting unit.

7. The integrated equipment for extracting and purifying icariin according to claim 6, characterized in that: A first cavity (20) is provided on the inner side wall of the middle end of the crushing cylinder (2), and a spiral blade (21) is fixedly connected to the inner side wall of the middle end of the crushing roller. The spiral blade (21) is located in the first cavity (20).

8. The integrated equipment for extracting and purifying icariin according to claim 6, characterized in that: The adjustment unit includes a sliding bracket (4) slidably connected to the frame (1). The bottom end of the sliding bracket (4) is fixedly connected to the top cover (19). A second motor (5) is fixedly connected to the top of the frame (1). A lead screw is coaxially fixedly connected to the rotating shaft of the second motor (5). The top end of the sliding bracket (4) is threaded onto the bottom end of the lead screw.

9. The integrated equipment for extracting and purifying icariin according to claim 6, characterized in that: A second solenoid valve is fixedly connected to the first pipe (9).

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