Dihydroquercetin extraction device based on high-voltage pulsed electric field extraction

Abstract

The invention discloses a dihydroquercetin extraction device based on high-voltage pulse electric field extraction, which comprises a pulse extractor for applying a high-voltage pulse electric field to an extraction container filled with dihydroquercetin extraction raw material powder and a solvent, a filtering assembly used for enabling residues to slide down in a spiral mode and be concentrated at the outlet is installed in the extraction container, and a flow mixing assembly which extends into the extraction container and drives the residues to be discharged towards the outlet along a spiral path on the top face of the filtering assembly after liquid is led out after extraction is finished is installed on the pulse extractor. The top wall of the pulse extractor is provided with a flow mixing assembly extending into the extraction container from the bottom of the flow mixing assembly. According to the invention, the purposes of residue filtration and reserved accumulation separated treatment are realized through the connection arrangement of the convex strips and the lower sliding strips which are arranged in a gradual spiral manner, so that the blockage of surface filtration hole grooves is effectively avoided, and meanwhile, the extraction effect is improved through the combination of upper-layer high-voltage pulse extraction and lower-layer stirring extraction.

Description

Technical Field

[0001] The invention relates to the technical field of extraction, and in particular to a dihydroquercetin extraction device based on high-voltage pulse electric field extraction. Background Art

[0002] During the high-voltage pulse electric field treatment process, the cell wall of the raw powder extracted from dihydroquercetin will be ruptured and the cell membrane will be permeabilized, resulting in the release of the effective ingredients inside (such as polysaccharides, saponins, flavonoids, etc.) into the solvent. However, solid residues in the powder, incompletely extracted cell fragments, etc. may remain in the liquid. In order to prevent these solid substances from affecting the purity or use of the subsequent extract, it is generally necessary to add a filtering structure to the container to help remove these solid residues and improve the clarity of the extract. However, in conventional plate-type filtration structures, the top surface is usually planar, and based on the planar filtration structure, the residue is easily dispersed everywhere on the top surface of the filtration structure, which can easily cause the filter pores in the filtration structure to be blocked, affecting the subsequent separation effect of the residue. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a dihydroquercetin extraction device based on high-voltage pulse electric field extraction to solve the problem that the filter holes on the filter structure in the extraction device proposed in the above background technology are easily blocked.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dihydroquercetin extraction device based on high-voltage pulse electric field extraction, comprising a pulse extractor for applying a high-voltage pulse electric field to an extraction container containing dihydroquercetin extraction raw material powder and a solvent, a filtering component for causing the residue to slide down in a spiral manner and concentrate at an outlet is installed inside the extraction container, a mixing component is installed on the pulse extractor, which extends to the inside of the extraction container and drives the residue to be discharged to the outlet along a spiral path on the top surface of the filtering component after the extraction is completed and the liquid is discharged, and a sealing component is installed on the top wall of the pulse extractor, which is used to seal the opening on the top surface of the extraction container after the bottom of the mixing component extends to the inside of the extraction container;

[0005] The filter assembly is composed of raised bars arranged in a progressive spiral shape and lower lower bars arranged in a progressive spiral shape, which are staggered inside and outside, and the bottom of the raised bar and the top of the lower lower bar are seamlessly connected. A plurality of evenly arranged filter hole grooves are opened on the surface of the raised bar.

[0006] Preferably, the diameter of the overall structure formed by the raised strips and the lowered strips is matched with the inner diameter of the extraction container, and the raised strips and the lowered strips gradually decrease in height from the intersecting end to the tail end.

[0007] Preferably, the mixing flow component includes a hydraulic cylinder installed on the back of the pulse extractor, a bending plate is installed at the free end of the hydraulic cylinder, a rotating shaft extending to the interior of the pulse extractor is installed on the bending plate, stirring blades are installed on the outer surface of the rotating shaft, and a driving motor connected to the rotating shaft is installed on the top of the bending plate.

[0008] Preferably, a guide groove is provided inside the rotating shaft, a connecting rod having an inclination angle consistent with the inclination from the middle to the edge of the filter assembly is inserted at the bottom of the guide groove, and a soft brush with a wavy bottom is connected to the bottom of the connecting rod.

[0009] Preferably, the guide groove consists of a short circular portion arranged at the bottom of the rotating shaft, a guide portion arranged at the side of the rotating shaft and connected to the short circular portion, and a long circular portion arranged at the center of the rotating shaft and connected to the short circular portion.

[0010] Preferably, an annular groove is provided on the outer surface of the rotating shaft, and an external thread is provided on the outer surface of the annular groove, an open groove which is interconnected with the long circular portion is provided on the inner wall of the annular groove, an adjusting ring is provided on the threaded sleeve on the outer surface of the annular groove portion of the rotating shaft, a connecting ring is rotatably connected to the bottom of the adjusting ring, a limit block passing through the open groove is installed on the inner wall of the connecting ring, and a suspension rod located inside the guide groove is installed between the limit block and the connecting rod.

[0011] Preferably, the sealing assembly includes a plurality of spring structures installed on the top wall of the pulse extractor, a sealing cover plate having a diameter larger than the outer diameter of the top of the extraction container is connected to the bottom of the spring structure, through grooves are provided on both sides of the top of the sealing cover plate, and the net distance between the two through grooves is larger than the outer diameter of the top surface of the extraction container, and a guide rod passing through the through groove is installed on the top wall of the pulse extractor.

[0012] Preferably, a plane block is installed on the top of each of the three stirring blades, and the top surfaces of the three plane blocks are at the same height.

[0013] By means of the above technical solution, the present invention provides a dihydroquercetin extraction device based on high-voltage pulse electric field extraction, which has at least the following beneficial effects:

[0014] 1. The present invention adds an electric stirring structure below the high-pressure pulse extraction to ensure that the extraction solvent can more evenly contact the surface of the dihydroquercetin extraction raw material powder, which can better release its effective ingredients, improve the quality and yield of the product, and at the same time eliminate the differences in local temperature and pressure during the high-pressure pulse extraction process.

[0015] 2. The present invention achieves the purpose of filtering the residue and separately treating the reserved accumulation by connecting the raised strips and the lower sliding strips arranged in a progressive spiral shape, thereby effectively avoiding the clogging of the filter hole grooves on the surface.

[0016] 3. When the driving motor of the present invention is running, the soft-bristle brush can also rotate at a uniform speed following the rotating shaft through the connecting rod to clean the top surface of the filter assembly, and can push and sweep the residues accumulated in various places on the lower slide to the outlet of the extraction container, thereby increasing the efficiency and effect of cleaning the residues after the subsequent extraction is completed and the liquid is discharged.

[0017] 4. The present invention can ultimately achieve the purpose of adjusting the height of the connecting rod by rotating the adjustment ring, thereby facilitating adjusting the bottom of the soft brush to a state of being in contact with or spaced apart from the top surface of the filter assembly as needed, and can avoid wear on the tail end of the soft brush during the process of not cleaning the residue on the top surface of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the planar structure of the filter assembly of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the flow mixing component of the present invention;

[0023] Figure 5 It is a schematic diagram of the installation structure of the rotating shaft and the connecting rod of the present invention;

[0024] Figure 6 It is a schematic diagram of the cross-section structure of the extraction container of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the sealing assembly of the present invention.

[0026] In the figure: 1. extraction container; 2. pulse extraction machine; 3. filtering assembly; 301. raised strip; 302. lower slide strip; 303. filter hole slot; 4. mixed flow assembly; 401. hydraulic cylinder; 402. bending plate; 403. rotating shaft; 4031. guide slot; 4032. connecting rod; 4033. soft brush; 4034. opening slot; 4035. adjusting ring; 4036. connecting ring; 4037. limit block; 4038. suspension rod; 404. stirring blade; 4041. plane block; 405. driving motor; 5. sealing assembly; 501. spring structure; 502. sealing cover plate; 503. guide rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] Embodiment 1

[0029] When extracting dihydroquercetin raw material powder, it is generally necessary to add a filter structure in the container to remove solid residues. However, the top surface of the conventional filter structure is flat, and a lot of residues are easily scattered everywhere on the top surface of the filter structure, which can easily cause the filter pores in the filter structure to be blocked, affecting the subsequent separation effect of the residues. Figure 1-Figure 7As shown, this embodiment proposes a dihydroquercetin extraction device based on high-voltage pulse electric field extraction, which can effectively avoid the complete blockage of the filter holes on the filter structure used to separate the extraction liquid and the residue. The extraction device has a pulse extractor 2 for applying a high-voltage pulse electric field to an extraction container 1 containing a dihydroquercetin extraction raw material powder and a solvent, and the pulse extractor 2 is well known in the art, so it is not described in detail in this application. It is intended to achieve a high-voltage extraction effect between the dihydroquercetin extraction raw material powder and the selected solvent inside the extraction container 1, and the probe used to apply the high-voltage electric field is placed inside the extraction container 1, rather than in a fixed state. A filter assembly 3 for making the residues spiral down and concentrate at the outlet is installed inside the extraction container 1, a mixing assembly 4 is installed on the pulse extractor 2, which extends into the extraction container 1 and drives the residues to be discharged to the outlet along the spiral path on the top surface of the filter assembly 3 after the extraction is completed and the liquid is discharged, and a sealing assembly 5 is installed on the top wall of the pulse extractor 2, which is used to seal the opening on the top surface of the extraction container 1 after the bottom of the mixing assembly 4 extends into the extraction container 1, wherein the mixing assembly 4 includes a hydraulic cylinder 401 installed on the back of the pulse extractor 2, a bending plate 402 is installed at the free end of the hydraulic cylinder 401, a rotating shaft 403 extending into the interior of the pulse extractor 2 is installed on the bending plate 402, a stirring blade 404 is installed on the outer surface of the rotating shaft 403, and a driving motor 405 connected to the rotating shaft 403 is installed on the top of the bending plate 402. In actual use, the extraction container 1 is placed at a set position in the inner cavity of the pulse extractor 2, and the high-voltage pulse probe of the pulse extractor 2 is placed at the edge of the middle position inside the extraction container 1. Then, by running the hydraulic cylinder 401, it is prompted to perform a downward contraction action accordingly, thereby driving the bending plate 402 to descend in height, so that its bottom is fitted with the top surface of the pulse extractor 2, thereby increasing stability. At the same time, the driving motor 405 and the rotating shaft 403 drive the stirring blade 404 to follow the descending height, so that the stirring blade 404 is located below the high-voltage pulse probe inside the extraction container 1. At this time, the sealing component 5 synchronously completes the sealing of the top opening of the extraction container 1, so that the extraction of the dihydroquercetin extraction raw material powder is carried out in a closed environment. After that, the driving motor 405 is operated in conjunction with the rotating shaft 403 to drive the stirring blade 404 to maintain a uniform rotation, thereby further enhancing the mixing degree of the liquid and the solid powder on the basis of the high-voltage pulse extraction, ensuring that the extraction solvent can more evenly contact the surface of the dihydroquercetin extraction raw material powder, further improving the extraction effect, and at the same time preventing the difference in local temperature and pressure during the high-voltage pulse extraction process. And the filter component 3 is used to separate the residue generated during the extraction process.

[0030] In accordance with the above, the filter assembly 3 is composed of a progressive spirally arranged raised strip 301 and a progressive spirally arranged downwardly arranged downwardly arranged strip 302, and the bottom of the raised strip 301 and the top of the downwardly arranged strip 302 are seamlessly connected, and a plurality of evenly arranged filter hole grooves 303 are provided on the surface of the raised strip 301. Figure 2 and Figure 3 As shown, the middle of the top surface of the raised strip 301 to both sides is in an arc shape, so as to effectively avoid the accumulation of residues on its surface. By setting and combining the shapes of the raised strip 301 and the lower slide strip 302, and the location of the filter hole slot 303, the purpose of filtering the residues and pre-reserved accumulation is achieved, so as to effectively avoid the clogging of the filter hole slot 303 on its surface. In addition, there is no concave shape on the top surface of the lower slide strip 302, and the liquid entering its range can be diverted downward along the filter hole slot 303 on the side of the raised strip 301.

[0031] Embodiment 2

[0032] like Figure 2-Figure 3 As shown, the diameter of the overall structure formed by the raised strip 301 and the lowered strip 302 is adapted to the inner diameter of the extraction container 1, so that the filter assembly 3 is seamlessly connected to the inner wall of the extraction container 1, preventing the residue from falling below the filter assembly 3, and the raised strip 301 and the lowered strip 302 are gradually reduced in height from the intersecting end to the tail end, so that the residue dropped on the top surface of the lowered strip 302 itself has a certain sliding effect, which facilitates it to finally slide down along the spiral path to the bottom of the filter assembly 3. Figure 6 Near the exit shown.

[0033] Embodiment 3

[0034] Following the above-mentioned second embodiment, relying solely on the morphological characteristics of the lower slide bar 302, it is not possible to make all the residues on the top surface of the slide bar 302 finally slide down to the outlet. To address this problem, Figure 4-Figure 5 As shown, a guide groove 4031 is provided inside the rotating shaft 403, and a connecting rod 4032 with an inclination angle consistent with the inclination from the middle to the edge of the filter assembly 3 is inserted at the bottom of the guide groove 4031, and a soft brush 4033 with an undulating bottom is connected to the bottom of the connecting rod 4032. When the driving motor 405 is operated to control the rotating shaft 403 to rotate at a constant speed, the connecting rod 4032 can drive the soft brush 4033 to follow the rotation, and the bottom of the soft brush 4033 can be in contact with the top surface of the filter assembly 3, so that the soft brush 4033 can push and sweep the residues accumulated at various places on the lower slide 302 to the outlet of the extraction container 1 during the process of following the rotation of the rotating shaft 403, thereby increasing the efficiency and effect of cleaning the residues after the subsequent extraction is completed and the liquid is discharged.

[0035] Embodiment 4

[0036] Following the third embodiment, if the soft brush 4033 rotates and rubs against the upper surface of the filter assembly 3 for a long time, it will wear out quickly and needs to be replaced frequently. In order to effectively increase the service life of the soft brush 4033. Figure 3-Figure 6 As shown, the guide groove 4031 is composed of a short circular part arranged at the bottom of the rotating shaft 403, a guide part arranged on the side of the rotating shaft 403 and connected with the short circular part, and a long circular part arranged at the center of the rotating shaft 403 and connected with the short circular part. An annular groove is provided on the outer surface of the rotating shaft 403, and the outer surface of the annular groove is provided with an external thread. An open groove 4034 connected with the long circular part is provided on the inner wall of the annular groove. An adjusting ring 4035 is threadedly sleeved on the outer surface of the annular groove portion of the rotating shaft 403. A connecting ring 4036 is rotatably connected to the bottom of the adjusting ring 4035. A limit block 4037 passing through the open groove 4034 is installed on the inner wall of the connecting ring 4036. A suspension rod 4038 located inside the guide groove 4031 is installed between the limit block 4037 and the connecting rod 4032. By applying a rotational force in a set direction to the adjusting ring 4035, it is urged to rotate downward or upward along the outer wall of the annular groove, so that an upward pulling force or a downward pushing force can be applied to the suspension rod 4038 through the connecting ring 4036 and the limit block 4037, so as to achieve the purpose of adjusting the height of the connecting rod 4032, and the bottom of the soft brush 4033 is adjusted to a state of being in contact with or spaced apart from the top surface of the filter assembly 3 as required, so that the tail end of the soft brush 4033 can be prevented from being worn in the process of not cleaning the residue on the top surface of the filter assembly 3. In addition, when the adjusting ring 4035 is rotated, the connecting ring 4036 can only move up and down due to the rotational connection between itself and the adjusting ring 4035 and the limiting effect of the limit block 4037 stuck in the opening groove 4034.

[0037] Embodiment 5

[0038] like Figure 6-Figure 7The sealing assembly 5 includes a plurality of spring structures 501 installed on the top wall of the pulse extractor 2. A sealing cover plate 502 having a diameter greater than the outer diameter of the top of the extraction container 1 is connected to the bottom of the spring structure 501. When the spring structure 501 maintains a normal extension state, the sealing cover plate 502 can be tightly fitted with the top opening of the extraction container 1 placed at a set position in the pulse extractor 2, thereby achieving a sealing effect. In practical applications, a sealing ring is included at the bottom of the sealing cover plate 502 to increase its sealing effect on the top opening of the extraction container 1. Through grooves are provided on both sides of the top of the sealing cover plate 502, and the net distance between the two through grooves is greater than the outer diameter of the top surface of the extraction container 1. A guide rod 503 passing through the through groove is installed on the top wall of the pulse extractor 2. Plane blocks 4041 are installed on the tops of the three stirring blades 404, and the top surfaces of the three plane blocks 4041 are at the same height. In the process of controlling the hydraulic cylinder 401 to extend upward, it can eventually drive the rotating shaft 403 and the stirring blade 404 to move upward. When the stirring blade 404 moves upward out of the internal range of the extraction container 1, the plane block 4041 that follows the gradual rise can generate an upward pushing force on the bottom of the sealing cover plate 502, causing the spring structure 501 to contract while creating a larger gap between the sealing cover plate 502 and the top of the extraction container 1, thereby facilitating the subsequent removal of the extraction container 1 from the interior of the pulse extractor 2.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dihydroquercetin extraction device based on high-voltage pulse electric field extraction, comprising a pulse extractor (2) for applying a high-voltage pulse electric field to an extraction container (1) containing dihydroquercetin extraction raw material powder and a solvent, characterized in that: The extraction container (1) is provided with a filter assembly (3) for causing the residue to slide down in a spiral manner and be concentrated at the outlet. The pulse extractor (2) is provided with a flow mixing assembly (4) extending into the extraction container (1) and driving the residue to be discharged toward the outlet along a spiral path on the top surface of the filter assembly (3) after the extraction is completed and the liquid is discharged. The top wall of the pulse extractor (2) is provided with a sealing assembly (5) for sealing the opening on the top surface of the extraction container (1) after the bottom of the flow mixing assembly (4) extends into the extraction container (1). The filter assembly (3) is composed of raised strips (301) arranged in a progressive spiral shape and lowered strips (302) arranged in a progressive spiral shape, which are staggered inside and outside, and the bottom of the raised strip (301) and the top of the lowered strip (302) are seamlessly connected, and a plurality of evenly arranged filter hole grooves (303) are provided on the surface of the raised strip (301).

2. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 1, characterized in that: The diameter of the overall structure formed by the raised strip (301) and the lower slide strip (302) is compatible with the inner diameter of the extraction container (1), and the raised strip (301) and the lower slide strip (302) gradually decrease in height from one intersecting end to the tail end.

3. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 1, characterized in that: The mixing flow component (4) comprises a hydraulic cylinder (401) installed on the back of the pulse extractor (2), a bending plate (402) is installed at the free end of the hydraulic cylinder (401), a rotating shaft (403) extending into the interior of the pulse extractor (2) is installed on the bending plate (402), a stirring blade (404) is installed on the outer surface of the rotating shaft (403), and a driving motor (405) connected to the rotating shaft (403) is installed on the top of the bending plate (402).

4. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 3, characterized in that: A guide groove (4031) is provided inside the rotating shaft (403), a connecting rod (4032) having an inclination angle consistent with the inclination from the middle to the edge of the filter assembly (3) is inserted at the bottom of the guide groove (4031), and a soft brush (4033) having an undulating bottom is connected to the bottom of the connecting rod (4032).

5. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 4, characterized in that: The guide groove (4031) is composed of a short circular portion arranged at the bottom of the rotating shaft (403), a guide portion arranged on the side of the rotating shaft (403) and connected to the short circular portion, and a long circular portion arranged at the center of the rotating shaft (403) and connected to the short circular portion.

6. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 5, characterized in that: The outer surface of the rotating shaft (403) is provided with an annular groove, and the outer surface of the annular groove is provided with an external thread, and an opening groove (4034) which is interconnected with the long circular portion is provided on the inner wall of the annular groove, and an adjusting ring (4035) is provided on the threaded sleeve on the outer surface of the portion of the rotating shaft (403) where the annular groove is provided, and a connecting ring (4036) is rotatably connected to the bottom of the adjusting ring (4035), and a limiting block (4037) passing through the opening groove (4034) is installed on the inner wall of the connecting ring (4036), and a suspension rod (4038) located inside the guide groove (4031) is installed between the limiting block (4037) and the connecting rod (4032).

7. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 1, characterized in that: The sealing assembly (5) comprises a plurality of spring structures (501) mounted on the top wall of the pulse extractor (2); a sealing cover plate (502) having a diameter greater than the outer diameter of the top of the extraction container (1) is connected to the bottom of the spring structure (501); through grooves are provided on both sides of the top of the sealing cover plate (502); and the net distance between the two through grooves is greater than the outer diameter of the top surface of the extraction container (1); and a guide rod (503) passing through the through groove is mounted on the top wall of the pulse extractor (2).

8. The dihydroquercetin extraction device based on high voltage pulse electric field extraction according to claim 2, characterized in that: A plane block (4041) is installed on the top of each of the three stirring blades (404), and the top surfaces of the three plane blocks (4041) are of the same height.

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