Preparation equipment and method of water-soluble ginsenoside mixture

Abstract

The invention relates to the field of preparation of water-soluble ginsenoside mixtures, in particular to a preparation device and method of a water-soluble ginsenoside mixture. The preparation method of the water-soluble ginsenoside mixture provided by the invention is completed on the basis of used preparation equipment of the water-soluble ginsenoside mixture, the preparation equipment mainly comprises a stirring cabin and an extraction layering pipe, and after the two solutions are fully mixed to complete extraction treatment, the extraction layering pipe is separated from the stirring cabin and the extraction layering pipe to obtain the water-soluble ginsenoside mixture. The separation assembly in the small-diameter extraction layering pipe is used for rapidly completing the shunting and collecting work of two layered solutions, the solutions do not need to be transferred in multiple containers in a reciprocating mode, and a large number of layering-shunting-collecting steps and waiting time needed in extraction treatment are shortened. The technical defects that a preparation method of a water-soluble ginsenoside mixture needs to consume more waiting time and the layering and split-flow collection effects are poor are overcome.

Description

Technical Field

[0001] The present invention relates to the field of preparation of water-soluble ginsenoside mixtures, and in particular to equipment and a method for preparing the water-soluble ginsenoside mixtures. Background Art

[0002] Water-soluble ginsenosides are a special form of ginsenosides. Compared with traditional ginsenosides, their biggest feature is that they have higher water solubility and bioavailability. This improved form of ginsenosides can be more effectively absorbed and utilized by the human body, thereby exerting a stronger pharmacological effect. The preparation methods of the water-soluble ginsenoside mixtures currently under study all require multiple extraction steps in succession. Each extraction step requires a lot of time for solution stratification and diversion collection. In addition, during the solution stratification and diversion collection steps, a large amount of effective substances are diverted and discharged, resulting in waste, affecting the overall preparation efficiency of the water-soluble ginsenoside mixture. Summary of the Invention

[0003] In order to overcome the shortcomings of the preparation method of the water-soluble ginsenoside mixture, which requires a long waiting time and has poor stratification and diversion collection effects, the present invention provides an apparatus and method for preparing the water-soluble ginsenoside mixture.

[0004] The present invention provides a preparation device for a water-soluble ginsenoside mixture, comprising a fixed support, a stirring chamber, a liquid inlet valve, a liquid outlet valve, an extraction and stratification pipe, an air pipe, an adjusting piston, a compression spring, a separation component, an image recognition sensor, a rotating frame, a power gear, an electric motor, a driving gear and a stirring blade; the fixed support is fixedly connected to the stirring chamber; the stirring chamber is sequentially provided with a liquid inlet valve and a liquid outlet valve; the stirring chamber is fixedly connected to the extraction and stratification pipe; the diameter of the extraction and stratification pipe is less than one-tenth of the diameter of the stirring chamber; the lower end of the extraction and stratification pipe is connected to the inlet end of the liquid outlet valve; the lower end of the extraction and stratification pipe is provided with a through-hole structure; the extraction and stratification pipe is provided with a transparent observation plate The invention relates to a structure; the extraction and stratification tube is connected to a gas supply pipe; the extraction and stratification tube is slidably connected to an adjusting piston; a compression spring is fixedly connected between the adjusting piston and the inside of the extraction and stratification tube; the extraction and stratification tube is provided with a partition component for automatically isolating the stratified solution; the extraction and stratification tube is provided with an image recognition sensor for automatically identifying the stratification line of the solution, and the image sensing component of the image recognition sensor is aligned with the transparent observation plate structure; the extraction and stratification tube is rotatably connected to a rotating frame; the rotating frame is fixedly connected to a power gear; the stirring chamber is installed with an electric motor; the output shaft of the electric motor is fixedly connected to a driving gear that drives the power gear to rotate; and three stirring blades are fixedly connected to the rotating frame.

[0005] More preferably, a trough structure is provided at the inner bottom of the stirring chamber, and the through-hole structure of the extraction and stratification tube is located in the trough structure of the stirring chamber.

[0006] More preferably, the partition assembly includes a partition block, an electric push rod, a waste liquid valve and a vent valve; two partition blocks are slidably connected in the extraction stratification tube; two electric push rods are installed on the extraction stratification tube to control the movement of the two partition blocks respectively; the telescopic ends of the two electric push rods are respectively fixed to the two partition blocks; a waste liquid valve is fixed to any partition block, and a drainage trough structure connected to the waste liquid valve is provided on the upper side of the partition block; a vent valve is fixed to the other partition block, and the vent valve passes through and is connected to the lower space of the partition block.

[0007] More preferably, the facing sides of the two partition blocks are provided with trapezoidal partition structures with positive and negative complementary structures.

[0008] More preferably, a spiral stirring rod is fixedly connected to the rotating frame.

[0009] More preferably, a guide tube sleeved on the outside of the spiral stirring rod is fixedly connected in the stirring chamber, and the guide tube sleeved on the outside of the spiral stirring rod.

[0010] More preferably, the trough structure of the mixing chamber is provided with a plurality of impact plate structures.

[0011] More preferably, a solution conductivity monitoring electrode is installed on any separator block.

[0012] The present invention discloses a method for preparing a water-soluble ginsenoside mixture. The method uses the preparation equipment of the present invention to perform continuous extraction steps. The specific steps are: taking a raw solution of ginsenoside extract, using an ethyl acetate-n-butanol mixed solvent as an extractant to perform a first extraction on the raw solution, allowing the extract to stand for stratification after the extraction, separating a lower layer liquid, and again using ethanol as an extractant to perform a second extraction on the lower layer liquid, and allowing the extract to stand for stratification after the extraction, separating an upper layer liquid, and after completing two continuous extraction steps, concentrating the obtained upper layer liquid to an alcohol-free concentrated liquid, and then using a ceramic membrane and an ultrafiltration membrane to remove insoluble impurities from the concentrated liquid, collecting a filtrate, sterilizing the filtrate, and then spray drying the filtrate to obtain a water-soluble rare ginsenoside mixture.

[0013] More preferably, the ginsenoside extract original solution is a original solution obtained by mixing one or more extracts from ginseng stems and leaves, American ginseng stems and leaves, and Panax notoginseng stems and leaves.

[0014] The beneficial effects of the present invention are as follows: a preparation method of a water-soluble ginsenoside mixture provided by the present invention is completed based on a preparation device for a water-soluble ginsenoside mixture, the preparation device mainly consisting of a stirring chamber and an extraction and stratification tube, firstly, two solutions used for the extraction step are placed in the stirring chamber and the extraction and stratification tube respectively, then the two solutions are fully mixed in the stirring chamber in turn to complete the extraction treatment, and then the mixed solution is sucked into the extraction and stratification tube, because the diameter of the extraction and stratification tube is smaller than the diameter of the stirring chamber, the mixed solution will obtain two stratified solutions with a smaller interface area in the extraction and stratification tube, finally, with the help of the partition component on the extraction and stratification tube, the two stratified solutions can be quickly diverted and collected, without the need to transfer the solutions back and forth in multiple containers, thereby reducing the stratification-diversion-collection steps and waiting time required in a large number of extraction processes, and effectively improving the technical shortcomings of the preparation method of the water-soluble ginsenoside mixture that it requires a long waiting time and has poor stratification and diversion and collection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a preparation device for a water-soluble ginsenoside mixture of the present invention; Figure 2 This is a cross-sectional view of a stirring chamber of a device for preparing a water-soluble ginsenoside mixture according to the present invention; Figure 3 This is a cross-sectional view of a guide tube of a device for preparing a water-soluble ginsenoside mixture according to the present invention; Figure 4 A cross-sectional view of an extraction layer tube of a preparation device for a water-soluble ginsenoside mixture of the present invention; Figure 5 This is a structural diagram of a separation component of a device for preparing a water-soluble ginsenoside mixture according to the present invention; Figure 6 This is a structural diagram of the partition blocks of a device for preparing a water-soluble ginsenoside mixture according to the present invention.

[0016] The parts in the accompanying drawings are marked as follows: 1-fixed bracket, 2-stirring chamber, 201-sinking tank structure, 202-impact plate structure, 21-liquid inlet valve, 22-liquid outlet valve, 3-extraction and delamination tube, 301-through hole structure, 302-transparent observation plate structure, 31-air pipe, 32-adjusting piston, 33-compression spring, 34-separator, 3401-trapezoidal partition structure, 3402-drainage trough structure, 35-electric push rod, 36-waste valve, 37-vent valve, 38-image recognition sensor, 39-solution conductivity monitoring electrode, 4-rotating frame, 41-power gear, 42-electric motor, 43-drive gear, 44-stirring plate, 51-spiral stirring rod, 52-guide tube. DETAILED DESCRIPTION

[0017] The following description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0018] Example 1: A method for preparing a water-soluble ginsenoside mixture of this embodiment uses a preparation device for a water-soluble ginsenoside mixture of the present invention to perform continuous extraction steps. The specific steps are: taking an original solution obtained by mixing one or more extracts from ginseng stems and leaves, American ginseng stems and leaves, and Panax notoginseng stems and leaves, using an ethyl acetate-n-butanol mixed solvent as an extractant to extract the original solution for the first time, after the extraction is completed, the extract is allowed to stand and layered, and then the lower layer liquid is separated, and the lower layer liquid is extracted again using ethanol as an extractant. After the extraction is completed, the extract is allowed to stand and layered, and the upper layer liquid is separated. After completing two consecutive extraction steps, the upper layer liquid is concentrated to an alcohol-free concentrate, and then the concentrate is successively removed of insoluble impurities using a ceramic membrane and an ultrafiltration membrane, the filtrate is collected, the filtrate is sterilized, and then spray-dried to obtain a water-soluble rare ginsenoside mixture.

[0019] The preparation equipment of a water-soluble ginsenoside mixture of this embodiment is as follows: Figures 1-6 As shown, it includes a fixed bracket 1, a stirring chamber 2, a liquid inlet valve 21, a liquid outlet valve 22, an extraction and stratification pipe 3, an air supply pipe 31, an adjusting piston 32, a compression spring 33, a partition assembly, an image recognition sensor 38, a rotating frame 4, a power gear 41, an electric motor 42, a driving gear 43 and a stirring blade 44; the fixed bracket 1 is fixedly connected to the stirring chamber 2; the upper side of the stirring chamber 2 is connected to the liquid inlet valve 21; the lower side of the stirring chamber 2 is connected to the liquid outlet valve 22; the extraction and stratification pipe 3 is fixedly connected to the stirring chamber 2; the inner bottom of the stirring chamber 2 is provided with a sink structure 201, and the through-hole structure 301 of the extraction and stratification pipe 3 is located in the sink structure 201 of the stirring chamber 2; the lower end of the extraction and stratification pipe 3 is connected to the inlet end of the liquid outlet valve 22, and the liquid outlet valve 22 is initially in a closed state; the lower end of the extraction and stratification pipe 3 is provided with a plurality of A through-hole structure 301 passes through the inside and outside; a transparent observation plate structure 302 is provided on the surface of the extraction and stratification tube 3; an air supply pipe 31 is connected to the upper end of the extraction and stratification tube 3; an adjusting piston 32 is slidably connected inside the extraction and stratification tube 3; a compression spring 33 is fixedly connected between the adjusting piston 32 and the inside of the extraction and stratification tube 3; a partition component is provided on the extraction and stratification tube 3; an image recognition sensor 38 is provided on the extraction and stratification tube 3, and the image sensing component of the image recognition sensor 38 is aligned with the transparent observation plate structure 302; a rotating frame 4 is rotatably connected to the extraction and stratification tube 3; a power gear 41 is fixedly connected to the rotating frame 4; an electric motor 42 is installed on the stirring chamber 2; the output shaft of the electric motor 42 is fixedly connected to the drive gear 43; the drive gear 43 is meshed with the power gear 41; and three stirring blades 44 are fixedly connected to the rotating frame 4.

[0020] like Figure 5 and Figure 6As shown, the partition assembly includes a partition block 34, an electric push rod 35, a waste liquid valve 36 and a vent valve 37; two partition blocks 34 are symmetrical to each other in a sliding connection in the extraction and stratification tube 3; two electric push rods 35 are installed on the extraction and stratification tube 3; the telescopic ends of the two electric push rods 35 are respectively fixed to the two partition blocks 34; a waste liquid valve 36 is fixed to the left partition block 34, and a drainage trough structure 3402 connected to the waste liquid valve 36 is provided on the upper side of the same partition block 34; a vent valve 37 is fixed to the right partition block 34, and the vent valve 37 passes through and is connected to the lower space of the same partition block 34; the waste liquid valve 36 and the vent valve 37 are initially in a closed state; the opposite sides of the two partition blocks 34 are provided with a trapezoidal partition structure 3401 with a positive and negative complementary structure. When the two partition blocks 34 are attached to each other, the trapezoidal partition structures 3401 of the two partition blocks 34 will together form a complete sealed partition structure.

[0021] like Figure 6 As shown, a solution conductivity monitoring electrode 39 is installed on the left partition block 34.

[0022] Before using the equipment for preparing the water-soluble ginsenoside mixture, it is necessary to connect the air pipe 31 to an air pressure regulating device and connect the liquid outlet valve 22 to a waste liquid collection device to complete the preparation work.

[0023] When the preparation equipment for the water-soluble ginsenoside mixture is started to be used, after the original solution to be extracted is injected into the stirring chamber 2 through the liquid inlet valve 21, the external air pressure regulating device performs a vacuum treatment on the inside of the extraction and stratification tube 3 through the air supply pipe 31. At the same time, the external atmospheric pressure pushes the original solution in the stirring chamber 2 into the extraction and stratification tube 3 through the through-hole structure 301 in sequence, and the original solution continuously entering the extraction and stratification tube 3 pushes the regulating piston 32 to move upward along the extraction and stratification tube 3. At the same time, the regulating piston 32 drives the compression spring 33 to compress upward until all the original solution in the stirring chamber 2 is drawn into the extraction and stratification tube 3. The external air pressure regulating device stops the vacuum treatment and allows the current pressure state in the extraction and stratification tube 3 to be maintained.

[0024] The extractant solution is then poured into the stirring chamber 2 through the liquid inlet valve 21. The electric motor 42 then drives the drive gear 43 to rotate. The drive gear 43 engages the power gear 41 to drive the rotating frame 4 to rotate. The rotating frame 4 drives the stirring blades 44 to continuously rotate and stir the extractant solution in the stirring chamber 2. At this time, the stirred extractant solution forms a vortex flow that continuously circulates toward the bottom trough structure 201 in the stirring chamber 2. At the same time, the external air pressure regulating device gradually supplies gas into the extraction and stratification tube 3. The gas cooperates with the compressed compression spring 33 to slowly push the regulating piston 32 downward along the extraction and stratification tube 3. The regulating piston 32 pushes the original solution in the extraction and stratification tube 3 into the trough structure 201 in sequence. At the same time, the extractant solution that continuously flows into the trough structure 201 with the vortex flow collides with the pushed original solution to complete mixing, thereby improving the mixing effect of the original solution and the extractant solution. Finally, the original solution and the extractant solution are fully stirred and mixed to complete the extraction process.

[0025] Then the electric motor 42 stops driving the stirring blade 44 on the rotating frame 4 to rotate, and the external air pressure regulating device performs vacuum treatment on the inside of the extraction and stratification tube 3 through the air pipe 31, so that the mixed solution formed by the two solutions in the stirring chamber 2 is slowly drawn into the extraction and stratification tube 3, and the mixed solution will gradually complete stratification in the extraction and stratification tube 3, and two solutions divided into upper and lower layers are obtained in the extraction and stratification tube 3, and there is a boundary layer with a small contact area but obvious stratification between the two solutions. At this time, the external air pressure regulating device continues to perform vacuum treatment on the inside of the extraction and stratification tube 3 through the air pipe 31, so that the two stratified solutions slowly move upward along the extraction and stratification tube 3. During this process, the solution conductivity monitoring electrode 39 continuously monitors the conductivity of the solution flowing through the partition block 34. Since the conductivity of the two different solutions must be different, when the solution in the upper layer completely passes through the solution conductivity monitoring electrode 39 on the partition block 34, the solution conductivity monitoring electrode 39 on the partition block 34 is continuously monitored. , and the moment the solution in the lower layer passes through the solution conductivity monitoring electrode 39, the solution conductivity monitoring electrode 39 can immediately determine that the solution flowing through the partition block 34 has changed. At this time, the external air pressure regulating device immediately stops the vacuum treatment and allows the extraction and stratification tube 3 to maintain the current pressure state, so that both solutions no longer move. Then the image recognition sensor 38 identifies and determines whether the position of the boundary layer between the two solutions is higher than the height of the partition block 34. At the same time, the external air pressure regulating device fine-tunes the height of the two solutions in the extraction and stratification tube 3 through vacuum treatment until the image recognition sensor 38 identifies that the position of the boundary layer between the two solutions is higher than the height of the partition block 34. Then, the two electric push rods 35 move the two partition blocks 34 toward each other to form a complete partition plate. Since the boundary layer is only an interface layer with a thickness much smaller than that of the partition plate, the partition plate can isolate the two solutions from each other along the boundary layer.

[0026] The subsequent steps are divided into two treatment scenarios. In the first treatment scenario, if the upper layer solution contains a rare ginsenoside mixture, it is necessary to retain the upper layer liquid in the extraction and separation tube 3. At this time, the liquid outlet valve 22 and the vent valve 37 are directly switched to the open state. At this time, the outside air will push the lower layer liquid in the extraction and separation tube 3 through the vent valve 37, and be discharged into the external waste liquid collection device along the extraction and separation tube 3 and the liquid outlet valve 22. After the lower layer liquid is completely emptied, the liquid outlet valve 22 and the vent valve 37 are closed, and the two electric push rods 35 respectively drive the two partition blocks 34 to move in the opposite direction and reset. At this time, only the upper layer liquid is retained in the extraction and separation tube 3, and this upper layer liquid will serve as the new original solution. Then, according to the above steps, another extractant solution is poured into the stirring chamber 2, and the next set of original solution and extractant solution extraction treatment can be carried out.

[0027] In the second treatment situation, if the lower layer solution contains a rare ginsenoside mixture, it is necessary to retain the lower layer liquid in the extraction and separation tube 3. At this time, the external waste liquid collection device is connected to the waste liquid valve 36, and then the waste liquid valve 36 is switched to the open state. The external air pressure regulating device gradually supplies gas into the extraction and separation tube 3, and the upper layer liquid in the extraction and separation tube 3 is discharged to the external waste liquid collection device through the waste liquid valve 36. After the upper layer liquid is completely emptied, the external air pressure regulating device stops supplying gas and allows the current pressure state in the extraction and separation tube 3 to be maintained. At the same time, the waste liquid valve 36 is closed. At this time, only the lower layer liquid is retained in the extraction and separation tube 3, and the lower layer liquid will serve as the new original solution. Thereafter, another extractant solution is poured into the stirring chamber 2 according to the above steps, and the next set of original solution and extractant solution extraction treatment can be carried out.

[0028] The separation assembly on the extraction and stratification tube 3 can be used to quickly complete the diversion and collection of the two layered solutions without transferring the solutions back and forth between multiple containers, thereby reducing the stratification-diversion-collection steps and waiting time required in a large number of extraction processes.

[0029] After the two solutions are separated, if the lower solution contains a rare ginsenoside mixture, the lower solution needs to be retained. In the process of using the partition plate to separate the two solutions in the extraction and separation tube 3 along the boundary layer, in order to prevent the lower solution from containing the upper solution, the two partition blocks 34 close to each other will push part of the lower solution on the lower side of the boundary layer upward into the upper solution, and in the subsequent processing process, this part of the lower solution will be discharged outward with the upper solution and become invalid. Therefore, the partition plate cannot completely separate the two solutions. Figure 2As shown, the diameter of the extraction and separation tube 3 used in the equipment for preparing a water-soluble ginsenoside mixture in this embodiment is less than one-tenth of the diameter of the stirring chamber 2. After the two solutions are separated in the extraction and separation tube 3, the interface area between the two solutions in the extraction and separation tube 3 will be much smaller than the interface area between the two solutions after they are separated in the stirring chamber 2. Therefore, when the two solutions in the extraction and separation tube 3 are separated along the boundary layer using the partition plate, the two partition blocks 34 approaching each other will only push a small amount of the lower layer solution on the lower side of the boundary layer upward into the upper layer solution, so that only a small amount of the lower layer solution will be discharged outward with the upper layer solution and become waste. Therefore, this embodiment transfers the solution to the extraction and separation tube 3 with a smaller diameter for separation processing, which can significantly reduce the waste of the lower layer solution containing the rare ginsenoside mixture.

[0030] Example 2: Figures 1-6 As shown, the difference between this embodiment and Example 1 is that a spiral stirring rod 51 is fixedly connected to the rotating frame 4 of this embodiment; a guide tube 52 is fixedly connected to the stirring chamber 2 and is sleeved on the outside of the spiral stirring rod 51; during the rotation of the spiral stirring rod 51, the solution in the stirring chamber 2 is continuously guided along the guide tube 52 toward the trough structure 201, thereby accelerating the flow rate of the solution in the stirring chamber 2 toward the trough structure 201 of the stirring chamber 2; the trough structure 201 of the stirring chamber 2 is provided with a plurality of impact plate structures 202; the solution flowing toward the trough structure 201 along the bucket structure of the guide tube 52 will continuously impact the impact plate structures 202, and at the same time, the solution in the extraction and delamination tube 3 will also continuously flow outward through the through-hole structure 301 into the trough structure 201 of the stirring chamber 2 and impact the impact plate structures 202, so that the two solutions collide with the impact plate structures 202 in the trough structure 201. The solution impacting the impact plate structures 202 will be dispersed, further improving the mixing efficiency of the two solutions.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preparation device for a water-soluble ginsenoside mixture, comprising a fixed support (1); a stirring chamber (2) fixedly connected to the fixed support (1); a liquid inlet valve (21) and a liquid outlet valve (22) sequentially provided on the stirring chamber (2); wherein: The invention also includes an extraction and stratification tube (3); an extraction and stratification tube (3) is fixedly connected to the stirring chamber (2), and the diameter of the extraction and stratification tube (3) is less than one tenth of the diameter of the stirring chamber (2); the lower end of the extraction and stratification tube (3) is connected to the inlet end of the liquid outlet valve (22); a through-hole structure (301) is opened at the lower end of the extraction and stratification tube (3); the extraction and stratification tube (3) is provided with a transparent observation plate structure (302); an air supply pipe (31) is connected to the extraction and stratification tube (3); an adjusting piston (32) is slidably connected to the inside of the extraction and stratification tube (3); a compression spring (33) is fixedly connected between the adjusting piston (32) and the inside of the extraction and stratification tube (3); The extraction and stratification tube (3) is provided with a partition assembly for automatically separating the stratified solution; the extraction and stratification tube (3) is provided with an image recognition sensor (38) for automatically identifying the stratification line of the solution, and the image sensing component of the image recognition sensor (38) is aligned with the transparent observation plate structure (302); the extraction and stratification tube (3) is rotatably connected to a rotating frame (4); the rotating frame (4) is fixedly connected to a power gear (41); the stirring chamber (2) is equipped with an electric motor (42); the output shaft of the electric motor (42) is fixedly connected to a driving gear (43) for driving the power gear (41) to rotate; and three stirring blades (44) are fixedly connected to the rotating frame (4).

2. The preparation apparatus for a water-soluble ginsenoside mixture according to claim 1, characterized in that: A trough structure (201) is provided at the inner bottom of the stirring chamber (2), and the through-hole structure (301) of the extraction and stratification tube (3) is located in the trough structure (201) of the stirring chamber (2).

3. The preparation apparatus for a water-soluble ginsenoside mixture according to claim 1, characterized in that: The partition assembly includes a partition block (34); two partition blocks (34) are slidably connected in the extraction and stratification tube (3); two electric push rods (35) are installed on the extraction and stratification tube (3) for respectively controlling the movement of the two partition blocks (34); the telescopic ends of the two electric push rods (35) are respectively fixed to the two partition blocks (34); a waste liquid valve (36) is fixed to any partition block (34), and a drainage groove structure (3402) connected to the waste liquid valve (36) is provided on the upper side of the partition block (34); a vent valve (37) is fixed to the other partition block (34), and the vent valve (37) passes through and is connected to the lower space of the partition block (34).

4. The preparation apparatus for a water-soluble ginsenoside mixture according to claim 3, characterized in that: Trapezoidal partition structures (3401) with mutually complementary positive and negative phases are provided on the facing sides of the two partition blocks (34).

5. The preparation apparatus for a water-soluble ginsenoside mixture according to claim 2, characterized in that: A spiral stirring rod (51) is fixedly connected to the rotating frame (4).

6. The equipment for preparing a water-soluble ginsenoside mixture according to claim 5, characterized in that: A guide tube (52) sleeved on the outside of the spiral stirring rod (51) is fixedly connected to the stirring chamber (2), and the guide tube (52) is sleeved on the outside of the spiral stirring rod (51).

7. The equipment for preparing a water-soluble ginsenoside mixture according to claim 6, characterized in that: A plurality of impact plate structures (202) are provided on the trough structure (201) of the mixing chamber (2).

8. The equipment for preparing a water-soluble ginsenoside mixture according to claim 3, characterized in that: A solution conductivity monitoring electrode (39) is installed on any of the partition blocks (34).

9. A method for preparing a water-soluble ginsenoside mixture, the method comprising: performing a continuous extraction step using the apparatus for preparing a water-soluble ginsenoside mixture according to any one of claims 1 to 8, wherein: The specific steps are as follows: taking the original solution of ginsenoside extract, using ethyl acetate-n-butanol mixed solvent as the extractant to extract the original solution for the first time in a stirring chamber (2), allowing the extract to stand for separation after the extraction, and then separating the lower layer liquid, and using ethanol as the extractant to extract the lower layer liquid for the second time, and allowing the extract to stand for separation after the extraction, and separating the upper layer liquid in an extraction and separation tube (3), and after completing two consecutive extraction steps, concentrating the obtained upper layer liquid to an alcohol-free concentrate, and then using a ceramic membrane and an ultrafiltration membrane to remove insoluble impurities from the concentrate, collecting the filtrate, sterilizing the filtrate and spray drying it to obtain a water-soluble rare ginsenoside mixture.

10. The method for preparing a water-soluble ginsenoside mixture according to claim 9, wherein: The ginsenoside extract original solution is an original solution obtained by mixing one or more extracts from ginseng stems and leaves, American ginseng stems and leaves, and Panax notoginseng stems and leaves.

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