Alcohol precipitation device for Tibetan rhizoma polygonati polysaccharide extraction

Abstract

The invention discloses an alcohol precipitation device for Tibetan rhizoma polygonati polysaccharide extraction, and relates to the technical field of Tibetan rhizoma polygonati polysaccharide extraction. Comprising an atomization mixing tank, a stirring tank is installed below the atomization mixing tank, a plurality of atomization assemblies are fixedly connected to the two sides of the top of the atomization mixing tank, a spraying component is fixedly connected to one end of each atomization assembly, a stirring driving assembly is fixedly connected to the top of the atomization mixing tank, and a driving rod and a driving sleeve are fixedly connected into the stirring driving assembly; one end of the driving rod and one end of the driving sleeve are fixedly connected with a plurality of paddles respectively, and the driving rod is rotationally connected to the inner side of the driving sleeve; efficient mixing is achieved through a stirring driving assembly above the atomization mixing tank, a driving motor drives a driving rod and a driving sleeve to coaxially rotate reversely through a gearbox, so that blades generate turbulent flow in the atomization mixing tank, atomization assemblies on the two sides atomize liquid medicine and ethyl alcohol and then spray the atomized liquid medicine and ethyl alcohol into the turbulent flow, mist-liquid contact and primary mixing are enhanced, the mixing uniformity is improved, and the mixing effect is improved. And a good foundation is laid for subsequent alcohol precipitation.

Description

Technical Field

[0001] This invention relates to the field of Tibetan Polygonatum polysaccharide extraction technology, and in particular to an alcohol precipitation apparatus for extracting Tibetan Polygonatum polysaccharides. Background Technology

[0002] Alcohol precipitation in the extraction of Polygonatum sibiricum polysaccharides is a key process step that utilizes the difference in solubility of polysaccharides in ethanol of different concentrations for separation and purification. Specifically, after obtaining an aqueous extract containing Polygonatum sibiricum polysaccharides through water extraction and concentrating it, a high concentration of ethanol is added to the concentrate while continuously stirring until the final volume concentration of ethanol in the mixture reaches 80%. At this specific ethanol concentration, the solubility of Polygonatum sibiricum polysaccharides decreases sharply, causing them to precipitate from the solution, while some sugars, proteins, pigments, and other impurities remain in the supernatant, thus achieving preliminary separation and purification.

[0003] A search revealed Chinese patent application CN206508594U, which discloses an alcohol precipitation device combining pressure mechanical atomization and continuous alcohol precipitation. The device includes a water extraction extract delivery pump, an ethanol delivery pump, two pressure mechanical atomizing nozzles, an atomization chamber, an atomized liquid delivery pump, a stirred tank, a level limiter, and a sensor. The outlet of the pressure mechanical atomizing nozzles is located in the atomization chamber. In this patent, the atomized liquid is directly sprayed into the stirred tank, resulting in droplets falling to the bottom before being fully mixed, thus failing to fully utilize the higher mixing efficiency of atomization. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an alcohol precipitation device for extracting Polysaccharides from Polygonatum sibiricum.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrinum includes an atomizing mixing tank with a stirring tank installed below. Multiple atomizing components are fixedly connected to both sides of the top of the atomizing mixing tank. A spray component is fixedly connected to one end of each atomizing component. A stirring drive assembly is fixedly connected to the top of the atomizing mixing tank. A drive rod and a drive sleeve are fixedly connected inside the stirring drive assembly. Multiple blades are fixedly connected to one end of each drive rod and drive sleeve. The drive rod is rotatably connected to the inside of the drive sleeve. A power input end of a gear reducer is fixedly connected below the drive rod. A swing assembly is fixedly connected to the power output end of the gear reducer. A swing shaft is fixedly connected to one end of the swing assembly. Swing drive rods are fixedly connected to both ends of the top of the swing shaft. The swing drive rods are fixedly connected to the area below the spray component via an intermittent drive assembly.

[0006] Preferably, the atomizing component includes an atomizing element and an air pump. The air pump outlet is fixedly connected to the spraying element, the spraying element inlet is fixedly connected to the atomizing element outlet, a liquid inlet of one atomizing element is fixedly connected to a liquid feed pipe, and an ethanol feed pipe is fixedly connected to the liquid inlet of the other atomizing element.

[0007] Furthermore: the stirring drive assembly includes a drive motor, a gearbox, crown gear one, crown gear two, and multiple transmission gears. The drive motor and gearbox are fixedly connected above the atomizing mixing tank. Crown gear one, crown gear two, and multiple transmission gears are rotatably connected inside the gearbox. One side of the transmission gear is fixedly connected to the power output end of the drive motor. Crown gear one and crown gear two mesh with the downward ends of the transmission gears. The drive rod is fixedly connected to the bottom of crown gear one, and the drive sleeve is fixedly connected to the inner side of crown gear two.

[0008] Furthermore: the swing assembly includes a drive linkage, a swing drive groove, a rack and a swing gear. One end of the swing drive groove is fixedly connected to the power output end of the gear reducer, and the other end of the gear reducer is movably connected to the inside of the swing drive groove. One side of the swing drive groove is fixedly connected to the rack, and the rack and the swing gear mesh with each other. The top of the swing shaft is fixedly connected to the swing gear.

[0009] As a preferred embodiment of the present invention: the intermittent drive assembly includes a connecting rod, a drive wheel and a drive arc groove. The drive arc groove is fixedly connected to the top of the swing drive rod, the connecting rod is fixedly connected to the bottom of the spray component, the drive wheel is rotatably connected to the bottom of the connecting rod, and the other side of the drive wheel is movably connected to the inner side of the drive arc groove.

[0010] As a further embodiment of the present invention: a support frame is fixedly connected to the bottom of the atomizing mixing tank, a drain outlet is opened in the middle of the support frame, multiple swing grooves are opened on both sides of the support frame, the upper end of the drive wheel is movably connected to the inner side of the swing groove, a baffle is fixedly connected to the lower part of the connecting rod, the baffle is slidably connected to the upper part of the swing groove, a swing slide rail is fixedly connected to the inner side of the atomizing mixing tank, and the swing slide rail is slidably connected to the outer side of the spray component.

[0011] As a further embodiment of the present invention: a swing bracket is fixedly connected to one side of the support frame, the rack and swing drive groove are slidably connected to the inside of the support frame, the swing gear is rotatably connected to the inside of the support frame, and multiple stirring paddles one and two are fixedly connected to both sides of the swing shaft respectively.

[0012] Based on the aforementioned scheme: a liquid outlet pipe is fixedly connected to the bottom of the mixing tank, and a sedimentation tank is fixedly connected to the bottom of the liquid outlet pipe.

[0013] Based on the aforementioned scheme: an internal ventilation groove is opened on the inner side of the swing shaft and the second stirring paddle; a cooling sleeve is fixedly connected to the outer side of the stirring tank; an air supply pipeline is fixedly connected to one end of the air inlet of the internal ventilation groove and the cooling sleeve; a cold air supply component is fixedly connected to one end of the air inlet of the air supply pipeline; and an exhaust pipeline is fixedly connected to one end of the air outlet of the internal ventilation groove and the cooling sleeve.

[0014] Based on the aforementioned scheme: multiple ultrasonic probes are fixedly connected to one end of the stirring paddle, and multiple ultrasonic generators are fixedly connected to the bottom of the mixing tank. The cable of one end of the ultrasonic generator passes through the swing shaft and the stirring paddle and is connected to the multiple ultrasonic probes.

[0015] The beneficial effects of this invention are as follows: An alcohol precipitation device for extracting Polysaccharides from Tibetan Polygonatum odoratum achieves efficient mixing through a stirring drive component above an atomizing mixing tank. The drive motor drives the drive rod and drive sleeve to rotate coaxially through a gearbox, causing the blades to generate turbulence in the atomizing mixing tank. The atomizing components on both sides atomize the medicinal liquid and ethanol and spray them into the turbulence, which enhances the contact and initial mixing of the atomized liquid, improves the mixing uniformity, and lays a good foundation for subsequent alcohol precipitation.

[0016] An alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrinum uses multiple components to achieve intermittent changes in the spray position. The swing shaft is driven by a gear reducer, and the swing drive rod at the top intermittently pushes the connecting rod through the drive arc groove, causing the spray component to swing, which changes the spray point of the atomized liquid. Combined with the turbulent environment above, the mixing effect is further optimized, making the distribution of different droplets more extensive and uniform.

[0017] An alcohol precipitation device for extracting Polysaccharides from Tibetan Solomon's seal uses a swing shaft to drive a stirring paddle to reciprocate for mixing the main body. At the same time, cold air is introduced into the internal ventilation channel to cool the material. Furthermore, an ultrasonic probe integrated on the stirring paddle can generate vibration, which can effectively prevent local heating and deeply enhance the mixing process, ensuring the final effect of alcohol precipitation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main body of an alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrinum according to the present invention; Figure 2 This is a schematic diagram of the upper cross-sectional structure of an alcohol precipitation device for extracting Polysaccharides from Polygonatum sibiricum proposed in this invention; Figure 3 This is a schematic cross-sectional view of the middle section of an alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrin, as proposed in this invention. Figure 4 This is a schematic diagram of the internal structure of the swing support of the alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrin, as proposed in this invention. Figure 5This is a schematic diagram of the oscillating shaft structure of an alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrinum proposed in this invention; Figure 6 This is a cross-sectional view of the stirred tank structure of an alcohol precipitation device for extracting Polysaccharides from Polygonatum tigrinum proposed in this invention.

[0019] Figure label: 1. Atomizing mixing tank; 2. Stirring tank; 3. Sedimentation tank; 4. Liquid outlet pipe; 5. Drug inlet pipe; 6. Ethanol inlet pipe; 7. Atomizing component; 8. Air pump; 9. Cooling sleeve; 10. Drive motor; 11. Gearbox; 12. Crown gear one; 13. Crown gear two; 14. Transmission gear; 15. Swing slide rail; 16. Spraying component; 17. Connecting rod; 18. Drive rod; 19. Drive sleeve; 20. Blade; 21. Support frame; 22. Drain outlet; 23. 24. Gear reducer; 25. Swing bracket; 26. Swing shaft; 27. Baffle; 28. Swing groove; 29. ​​Drive wheel; 30. Drive arc groove; 31. Swing drive rod; 32. Drive connecting rod; 33. Swing drive groove; 34. Gear rack; 35. Swing gear; 36. Agitator 1; 37. Agitator 2; 38. Internal ventilation groove; 39. Air supply pipeline; 40. Exhaust pipeline; 41. Cold air supply component; 42. Ultrasonic generator; 43. Ultrasonic probe. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent. Example

[0022] An alcohol precipitation device for extracting Polysaccharides from Polygonatum sibiricum, such as Figure 1 - Figure 6As shown, an atomizing mixing tank 1, including a stirring tank 2 installed below, is characterized in that multiple atomizing components are fixedly connected to both sides of the top of the atomizing mixing tank 1, a spraying component 16 is fixedly connected to one end of each atomizing component, a stirring drive assembly is fixedly connected to the top of the atomizing mixing tank 1, a drive rod 18 and a drive sleeve 19 are fixedly connected inside the stirring drive assembly, multiple blades 20 are fixedly connected to one end of the drive rod 18 and the drive sleeve 19 respectively, the drive rod 18 is rotatably connected to the inside of the drive sleeve 19, and a power input end of a gear reducer 23 is fixedly connected below the drive rod 18, the gear reducer 23 outputs power. A swing assembly is fixedly connected to one end of the atomizing component 16. A swing shaft 25 is fixedly connected to one end of the swing assembly. Swing drive rods 30 are fixedly connected to both ends of the top of the swing shaft 25. The swing drive rods 30 are fixedly connected to the bottom of the spray component 16 through an intermittent drive assembly. The spray component 16 is an arc-shaped tube with multiple nozzles on one side. The atomizing component includes an atomizing component 7 and an air pump 8. The air outlet of the air pump 8 is fixedly connected to the spray component 16. The air inlet of the spray component 16 is fixedly connected to the air outlet of the atomizing component 7. A liquid feed pipe 5 is fixedly connected to the liquid inlet of one side of the atomizing component 7. An ethanol feed pipe 6 is fixedly connected to the liquid inlet of the other side of the atomizing component 7. The atomizing assembly includes an atomizing component 7 and an air pump 8. The atomizing component 7 is an ultrasonic atomizer. The air outlet of the air pump 8 is fixedly connected to the spray component 16. The air inlet of the spray component 16 is fixedly connected to the air outlet of the atomizing component 7. A liquid inlet pipe 5 is fixedly connected to the liquid inlet of one side of the atomizing component 7, and an ethanol inlet pipe 6 is fixedly connected to the liquid inlet of the other side of the atomizing component 7. The stirring drive assembly includes a drive motor 10, a gearbox 11, a crown gear 12, a crown gear 2 13, and multiple transmission gears 14. The drive motor 10 and the gearbox 11 are fixedly connected above the atomizing mixing tank 1. The crown gear 12, the crown gear 2 13, and the multiple transmission gears 14 are rotatably connected inside the gearbox 11. One side of the transmission gear 14 is fixedly connected to the power output end of the drive motor 10. The crown gear 12 and the crown gear 2 13 mesh with the downward ends of the transmission gear 14. The drive rod 18 is fixedly connected to the bottom of the crown gear 12, and the drive sleeve 19 is fixedly connected to the inside of the crown gear 2 13. The intermittent drive assembly includes a connecting rod 17, a drive wheel 28, and a drive arc groove 29. The drive arc groove 29 is fixedly connected to the top of the swing drive rod 30, the connecting rod 17 is fixedly connected to the bottom of the spray component 16, the drive wheel 28 is rotatably connected to the bottom of the connecting rod 17, and the other side of the drive wheel 28 is movably connected to the inside of the drive arc groove 29. When using the device, Tibetan Sophora extract enters through the liquid inlet pipe 5, and ethanol enters through the ethanol inlet pipe 6. After being atomized by the atomizing components 7 on both sides, it is sprayed into the inner side of the atomizing mixing tank 1 from both sides by the air pump 8. Then, the drive motor 10 is started. The drive motor 10 uses crown gear 12, crown gear 2 13 and multiple transmission gears 14 to make the drive rod 18 and drive sleeve 19 coaxially reverse, thereby driving multiple blades 20 on the outside to rotate in different directions, creating turbulence above the atomizing mixing tank 1. This allows the atomized liquid sprayed from the spray components 16 on both sides to be fully mixed in the turbulence before falling into the mixing tank 2, where it is driven by the reciprocating swing shaft 25 to continue mixing. During the swing of the swing shaft 25, the swing drive rod 30 can drive the drive arc grooves 29 on both sides to swing. After the drive arc grooves 29 swing a certain distance, they contact the drive wheel 28, allowing the drive wheel 28 to continue moving. This can intermittently drive the upper connecting rod 17 and spray component 16 to swing, changing the liquid outlet position and thus improving the mixing effect of the atomized droplets. By improving the mixing effect of the atomized liquid through turbulence and changes in the spray position, the swing shaft 25 at the lower end can be used to stir the liquid at the bottom, which can better mix the Tibetan scutellaria extract and ethanol, resulting in a better ethanol precipitation effect.

[0023] like Figure 1 - Figure 6 As shown, the swing assembly includes a drive link 31, a swing drive groove 32, a rack 33, and a swing gear 34. One end of the swing drive groove 32 is fixedly connected to the power output end of the gear reducer 23, and the other end of the gear reducer 23 is movably connected to the inside of the swing drive groove 32. One side of the swing drive groove 32 is fixedly connected to the rack 33, and the rack 33 and the swing gear 34 mesh with each other. The top of the swing shaft 25 is fixedly connected to the swing gear 34. The gear reducer 23 can reduce the output speed through the internal gear set, so that the drive rod 18 can drive the drive connecting rod 31 to rotate at a lower speed through the gear reducer 23. Then, the roller at one end of the drive connecting rod 31 drives the lower swing drive groove 32 to move back and forth, and then drives the swing gear 34 to rotate through the rack 33 on one side, so that the lower swing shaft 25 can rotate.

[0024] like Figure 1 - Figure 6As shown, a support frame 21 is fixedly connected to the bottom of the atomizing mixing tank 1. A drain outlet 22 is opened in the middle of the support frame 21. Multiple swing grooves 27 are opened on both sides of the support frame 21. The upper end of the drive wheel 28 is movably connected to the inside of the swing groove 27. A baffle 26 is fixedly connected below the connecting rod 17. The baffle 26 is slidably connected to the top of the swing groove 27. A swing slide rail 15 is fixedly connected to the inside of the atomizing mixing tank 1. The swing slide rail 15 is slidably connected to the outside of the spray component 16. A swing bracket 24 is fixedly connected to one side of the support frame 21. A toothed rod 33 and a swing drive groove 32 are slidably connected to the inside of the support frame 21. A swing gear 34 is rotatably connected to the inside of the support frame 21. Multiple stirring paddles 35 and stirring paddles 36 are fixedly connected to both sides of the swing shaft 25, respectively. The droplets flow down from the drain outlet 22. The baffle 26 can block the swing groove 27 during the swinging process to prevent the droplets from passing through the middle of the swing groove 27 and being heated by the reciprocating drive wheel 28, which would affect the alcohol precipitation effect.

[0025] like Figure 1 - Figure 6 As shown, a liquid outlet pipe 4 is fixedly connected to the bottom of the mixing tank 2, and a sedimentation tank 3 is fixedly connected to the bottom of the liquid outlet pipe 4. One end of the liquid outlet pipe 4 is equipped with an electric switch, which is turned on once every 90 minutes to allow the mixed liquid to enter the sedimentation tank 3 for sedimentation.

[0026] In this embodiment, when using the device, Tibetan Sophora extract enters through the liquid inlet pipe 5, ethanol enters through the ethanol inlet pipe 6, and after being atomized by the atomizing components 7 on both sides, it is sprayed into the inner side of the atomizing mixing tank 1 from both sides by the air pump 8. Then, the drive motor 10 is started. The drive motor 10 uses crown gear 12, crown gear 2 13 and multiple transmission gears 14 to make the drive rod 18 and drive sleeve 19 coaxially reverse, thereby driving multiple blades 20 on the outside to rotate in different directions, creating turbulence above the atomizing mixing tank 1. This allows the atomized liquid sprayed from the spray components 16 on both sides to be fully mixed in the turbulence before falling into the mixing tank 2, where it is driven by the reciprocating swing shaft 25 to continue mixing. During the swing of the swing shaft 25, the swing drive rod 30 can drive the drive arc grooves 29 on both sides to swing. After the drive arc grooves 29 swing a certain distance, they contact the drive wheel 28, allowing the drive wheel 28 to continue moving. This can intermittently drive the upper connecting rod 17 and spray component 16 to swing, changing the liquid outlet position and improving the mixing effect of the atomized droplets. By changing the turbulence and spray position, the mixing effect of the atomized liquid is improved. Simultaneously, the swing shaft 25 at the lower end stirs the liquid at the bottom, which can better mix the Tibetan scutellaria extract and ethanol, resulting in a better alcohol precipitation effect. The gear reducer 23 can reduce the output speed through the internal gear set, so that the drive rod 18 can drive the drive connecting rod 31 to rotate at a lower speed through the gear reducer 23. Then, the roller at one end of the drive connecting rod 31 drives the lower swing drive groove 32 to move back and forth. Then, the rack 33 on one side drives the swing gear 34 to rotate, so that the swing shaft 25 below can rotate. The droplets flow down from the drain outlet 22. The baffle 26 can block the swing groove 27 during the swing, preventing the droplets from passing through the middle of the swing groove 27 and being heated by the reciprocating drive wheel 28, which would affect the alcohol precipitation effect. One end of the liquid outlet pipe 4 is equipped with an electric switch, which is opened every 90 minutes to allow the mixed liquid to enter the sedimentation tank 3 for sedimentation. Example

[0027] An alcohol precipitation device for extracting Polysaccharides from Polygonatum sibiricum, such as Figure 1 - Figure 6 As shown, the swing shaft 25 and the second stirring paddle 36 have an internal ventilation groove 37 on their inner sides. A cooling sleeve 9 is fixedly connected to the outer side of the mixing tank 2. An air supply pipe 38 is fixedly connected to one end of the air inlet of the internal ventilation groove 37 and the cooling sleeve 9. A cold air supply component 40 is fixedly connected to one end of the air inlet of the air supply pipe 38. An exhaust pipe 39 is fixedly connected to one end of the air outlet of the internal ventilation groove 37 and the cooling sleeve 9. The cold air supply component 40 is preferably a cold air fan, which can introduce low-temperature gas into the internal ventilation groove 37 and the cooling sleeve 9 through the air supply pipe 38. This allows for simultaneous cooling from both the inside and outside. The second stirring paddle 36 can also cool the liquid while stirring, which can effectively prevent the liquid temperature from rising and affecting the subsequent alcohol precipitation effect.

[0028] like Figure 1 - Figure 6 As shown, one end of the stirring paddle 35 is fixedly connected to multiple ultrasonic probes 42, and the bottom of the mixing tank 2 is fixedly connected to multiple ultrasonic generators 41. One end of the ultrasonic generator 41 is connected to the multiple ultrasonic probes 42 through the swing shaft 25 and the stirring paddle 35. The ultrasonic generator 41 can perform ultrasonic vibration on the liquid through the ultrasonic probes 42, thereby further improving the mixing effect in the mixing tank 2.

[0029] The above description represents a preferred embodiment of the present invention. The scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, combined with existing technology or common knowledge, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for alcohol precipitation extraction of polygonatum sibiricum polysaccharides, comprising an atomization mixing tank (1) with a stirring tank (2) installed below, characterized in that, The atomization mixing tank (1) top two sides are fixedly connected with a plurality of atomization assemblies, one end of the atomization assembly is fixedly connected with a spray part (16), the atomization mixing tank (1) top is fixedly connected with a stirring drive assembly, the stirring drive assembly is fixedly connected with a drive rod (18) and a drive sleeve (19) inside, the drive rod (18) and the drive sleeve (19) one end are fixedly connected with a plurality of paddles (20) respectively, the drive rod (18) is rotatably connected to the inside of the drive sleeve (19), the drive rod (18) below is fixedly connected with the power input end of the gear reducer (23), the gear reducer (23) power output end is fixedly connected with a swing assembly, one end of the swing assembly is fixedly connected with a swing shaft (25), the swing shaft (25) top two ends are fixedly connected with a swing drive rod (30), the swing drive rod (30) is fixedly connected with the intermittent drive assembly below the spray part (16).

2. The alcohol precipitation device for extracting polysaccharides from polygonatum according to claim 1, characterized in that, The atomization assembly includes an atomization part (7) and a gas pump (8), the gas pump (8) gas outlet is fixedly connected with the spray part (16), the spray part (16) gas inlet is fixedly connected with the atomization part (7) gas outlet, one side atomization part (7) liquid inlet is fixedly connected with a liquid medicine feeding pipe (5), the other side atomization part (7) liquid inlet is fixedly connected with an ethanol feeding pipe (6).

3. The alcohol precipitation device for extracting polysaccharides from polygonatum according to claim 2, characterized in that, The stirring drive assembly includes a drive motor (10), a gear box (11), a crown gear one (12), a crown gear two (13) and a plurality of transmission gears (14), the drive motor (10) and the gear box (11) are fixedly connected above the atomization mixing tank (1), the crown gear one (12), the crown gear two (13) and the plurality of transmission gears (14) are rotatably connected inside the gear box (11), one side transmission gear (14) is fixedly connected with the power output end of the drive motor (10), the crown gear one (12) and the crown gear two (13) are engaged with the downward two ends of the transmission gear (14), the drive rod (18) is fixedly connected with the bottom of the crown gear one (12), the drive sleeve (19) is fixedly connected with the inside of the crown gear two (13).

4. The alcohol precipitation device for extracting polysaccharides from polygonatum according to claim 1, characterized in that, The swing assembly includes a drive link (31), a swing drive slot (32), a toothed rod (33) and a swing gear (34), one end of the swing drive slot (32) is fixedly connected with the power output end of the gear reducer (23), the other end of the gear reducer (23) is movably connected with the inside of the swing drive slot (32), one side of the swing drive slot (32) is fixedly connected with the toothed rod (33), the toothed rod (33) and the swing gear (34) are engaged with each other, the swing shaft (25) top is fixedly connected with the swing gear (34).

5. The alcohol precipitation device for extracting polysaccharides from Polygonatum according to claim 1, characterized in that, The intermittent drive assembly includes a connecting rod (17), a drive wheel (28) and a drive arc slot (29), the drive arc slot (29) is fixedly connected with the top of the swing drive rod (30), the connecting rod (17) is fixedly connected with the bottom of the spray part (16), the drive wheel (28) is rotatably connected with the bottom of the connecting rod (17), the other side of the drive wheel (28) is movably connected with the inside of the drive arc slot (29).

6. The alcohol precipitation device for extracting polygonatous polysaccharide according to claim 5, characterized in that, The atomization mixing tank (1) bottom fixedly connected with support frame (21), support frame (21) middle part is opened with the water outlet (22), support frame (21) both sides are opened with multiple swing grooves (27), drive wheel (28) upper end is movably connected in swing groove (27) inside, connecting rod (17) below fixedly connected with baffle (26), baffle (26) is slidably connected in swing groove (27) above, atomization mixing tank (1) inside fixedly connected with swing slide rail (15), swing slide rail (15) is slidably connected in spray component (16) outside.

7. The alcohol precipitation device for extracting polysaccharides from polygonatum according to claim 6, characterized in that, The support frame (21) one side is fixedly connected with swing support (24), rack (33) and swing drive groove (32) are slidably connected in the inside of support frame (21), swing gear (34) is rotatably connected in the inside of support frame (21), swing shaft (25) both sides are fixedly connected with multiple stirring paddle one (35) and stirring paddle two (36) respectively.

8. The alcohol precipitation device for extracting polysaccharides from polygonatum according to claim 1, characterized in that, The stirring tank (2) below fixedly connected with liquid outlet pipeline (4), liquid outlet pipeline (4) below fixedly connected with the precipitation tank (3).

9. The alcohol precipitation device for extracting polygonatous polysaccharide according to claim 7, characterized in that, The swing shaft (25) and stirring paddle two (36) inside are opened with internal vent groove (37), the stirring tank (2) outside is fixedly connected with cooling jacket pipe (9), the internal vent groove (37) and the air inlet one end of cooling jacket pipe (9) are fixedly connected with gas supply line (38), the air inlet one end of gas supply line (38) is fixedly connected with cold gas providing component (40), the air outlet one end of internal vent groove (37) and cooling jacket pipe (9) is fixedly connected with exhaust pipe line (39).

10. The alcohol precipitation device for extracting Polygonatum sibiricum polysaccharides according to claim 9, characterized in that, The stirring paddle one (35) one end is fixedly connected with multiple ultrasonic probes (42), the stirring tank (2) bottom is fixedly connected with multiple ultrasonic generators (41), the cable of ultrasonic generator (41) one end passes through swing shaft (25) and stirring paddle one (35) and is connected with multiple ultrasonic probes (42).

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