Hovenia dulcis thumb flavone puerarin extraction device

Abstract

The utility model relates to an extraction device, in particular to a hovenia dulcis thumb flavone puerarin extraction device. The hovenia dulcis thumb flavone puerarin extraction device comprises a bottom plate, an extraction tank, a pipeline, a condensing tower, a liquid outlet pipe, a filtering tank and the like, the left side of the top of the bottom plate is provided with an extraction tank, the left side of the upper part of the extraction tank is connected with two pipelines, the upper part of the extraction tank is connected and communicated with a condensing tower, the upper part of the condensing tower is connected and communicated with a liquid outlet pipe, and the lower part of the right end of the liquid outlet pipe is connected and communicated with a filtering tank. According to the puerarin concentration device disclosed by the utility model, the filtering membrane is arranged to filter an extracting solution after an extract is dissolved, and meanwhile, the semi-permeable membrane is arranged in the concentration tank to separate and purify a solvent, so that the concentration of the solvent is increased, the purity and the quality of a concentration procedure during puerarin extraction are improved, and the quality and the yield of later puerarin extraction are ensured.

Description

Technical Field

[0001] The utility model relates to an extraction device, in particular to a device for extracting puerarin from Hovenia dulcis seeds flavonoids. Background Art

[0002] Puerarin is also called pueraria flavonoids. It is an isoflavone derivative with coronary dilation effect isolated from the traditional Chinese medicine pueraria root. It exists in the roots of Pueraria lobata (Willd) Ohwi and Pueraria thunbergiana Benth, both of which are leguminous plants. It has the effects of reducing fever, calming and increasing coronary blood flow, and has a protective effect on acute myocardial hemorrhage caused by posterior pituitary hormone.

[0003] Puerarin is usually extracted by drying the kudzu root and then crushing it into powder, followed by ethanol extraction: this method uses ethanol to perform warm immersion extraction on the kudzu root powder, and after the extract is concentrated into an extract, it is dissolved in n-butanol and repeatedly extracted in water and petroleum ether, respectively, and then concentrated under reduced pressure, filtered, dried, dissolved and crystallized to obtain puerarin. After the extract is dissolved and extracted, there are alcohol insoluble substances in the extract after the kudzu root extract is dissolved. If it is not filtered and concentrated, it will affect the purity and quality of the concentrated product. Utility Model Content

[0004] In order to overcome the disadvantage that after the dissolution and extraction of the extract, there are alcohol insoluble substances in the extract after the Pueraria extract is dissolved, and if it is not filtered and concentrated, it will affect the purity and quality of the concentrated product. The purpose is to provide a device for extracting puerarin from Hovenia dulcis flavonoids, which is equipped with multiple filter membranes to filter the extract before concentration after the dissolution and extraction of the extract, remove the insoluble substances in the liquid, and obtain a pure extract for the next step of distillation and concentration, thereby improving the purity and quality of the concentrated product.

[0005] The technical scheme of the utility model is: a device for extracting puerarin from flavonoids of Hovenia dulcis, comprising a bottom plate, an extraction tank, a pipeline, a condensation tower, a liquid outlet pipe, a filter tank, a filter membrane, a liquid inlet pipe, a concentration tank and a semipermeable membrane, wherein an extraction tank is arranged on the left side of the top of the bottom plate, two pipelines are connected to the left side of the upper part of the extraction tank, the upper part of the extraction tank is connected and communicated with the condensation tower, the upper part of the condensation tower is connected and communicated with the liquid outlet pipe, the lower part of the right end of the liquid outlet pipe is connected and communicated with the filter tank, three filter membranes are arranged at intervals from top to bottom inside the filter tank, the bottom of the filter tank is connected and communicated with the liquid inlet pipe, a concentration tank is arranged on the right side of the top of the bottom plate, the lower part of the liquid inlet pipe is connected and communicated with the left side of the upper part of the concentration tank, a semipermeable membrane is arranged in the middle of the inner side of the concentration tank, and a connecting port is arranged at the bottom of the concentration tank.

[0006] In addition, it is particularly preferred that it also includes a check valve, a steam pipe, a condenser and a valve, a check valve is installed on the liquid outlet pipe, the left side of the upper part of the filter tank is connected and connected to the steam pipe, the right side of the upper part of the filter tank is connected and connected to the condenser, one end of the lower part of the condenser is connected and connected to the concentration tank, and valves are installed on the liquid inlet pipe and the condenser pipe.

[0007] In addition, it is particularly preferred that a pressurized pipe is further included, and the upper part of the concentrating pipe is connected and communicated with the pressurized pipe.

[0008] In addition, it is particularly preferred that it also includes a liquid extraction tube and a liquid extraction pump, the liquid extraction tube is connected and communicated with the upper right side of the concentration tank, the liquid extraction pump is connected to the liquid extraction tube, and the left end of the liquid extraction tube is located on the upper side of the semipermeable membrane inside the concentration tank.

[0009] In addition, it is particularly preferred that an observation window is further included, and the upper front side of the concentration tank is provided with an observation window.

[0010] The utility model filters the extract liquid after the extract is dissolved by arranging a filter membrane, and at the same time arranges a semipermeable membrane in the concentration tank to separate and purify the solvent, thereby increasing its concentration, improving the purity and quality of the concentration process during puerarin extraction, and ensuring the quality and yield of puerarin extraction in the later stage.

[0011] The utility model arranges a secondary extraction component in the filter tank to perform heating extraction on the insoluble substances blocked on the filter membrane, and performs secondary extraction on the organic solutes attached to the membrane and mixed on the insoluble substances, thereby extracting organic compounds therefrom to the maximum extent, reducing the loss of dissolved substances during filtration, and increasing the yield of the extract. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a cross-sectional view of the utility model.

[0014] Among them, the above-mentioned drawings include the following figure marks: 1, bottom plate, 2, extraction tank, 21, pipeline, 3, condensation tower, 31, liquid outlet pipe, 32, check valve, 4, filter tank, 41, filter membrane, 5, liquid inlet pipe, 6, concentration tank, 61, semipermeable membrane, 7, steam pipe, 71, condenser, 8, valve, 9, pressurizing pipe, 10, liquid extraction pipe, 11, liquid extraction pump, 12, observation window. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0016] Embodiment 1: A device for extracting puerarin from Hovenia dulcis flavonoids, such as Figure 1-2 As shown, it includes a bottom plate 1, an extraction tank 2, a pipeline 21, a condensation tower 3, a liquid outlet pipe 31, a filter tank 4, a filter membrane 41, a liquid inlet pipe 5, a concentration tank 6 and a semipermeable membrane 61. The bottom plate 1 is made of metal material, and a flat installation platform is provided on the top. The extraction tank 2 and the filter tank 4 are firmly installed on the bottom plate 1, and the extraction tank 2 is fixedly installed on the top left side of the bottom plate 1. Two pipelines 21 are connected to the left side of the upper part of the extraction tank 2. The two pipelines 21 are respectively a liquid agent pipe for liquid inlet and a heating pipe for extraction. The pressurized pipe is connected to and communicated with a condensation tower 3 at the top of the extraction tank 2. The condensation tower 3 is used for cooling, liquefying and refluxing the extract during extraction. An air guide pipe is arranged inside the condensation tower 3. When the liquid agent dissolved in the extract is pumped into the extraction tank 2, the solvent is heated through the heating and pressurized pipe of the pipeline 21. When the solvent is heated and boiled, the steam rises through the air guide pipe in the condensation tower 3. The top of the condensation tower 3 is connected to and communicated with a liquid outlet pipe 31 for reflux of the liquefied solvent. The lower right end of the liquid outlet pipe 31 is connected to and communicated with a filter tank 4. The solvent condensed into liquid is dripped into the filter tank 4 through the liquid outlet pipe 31. Three filter membranes 41 are arranged from top to bottom in the filter tank 4. The bottom of the filter tank 4 is connected and communicated with a liquid inlet pipe 5. A concentration tank 6 is arranged on the right side of the top of the bottom plate 1. The filtered solvent flows into the concentration tank 6 through the liquid inlet pipe. The extract before the concentration process is filtered by the multiple filter membranes 41 to remove the insoluble matter in the liquid to obtain a pure extract for the next step of distillation and concentration. The lower part of the liquid inlet pipe 5 is connected and communicated with the upper left side of the concentration tank 6. A semipermeable membrane 61 is arranged in the middle of the inner side of the concentration tank 6. The semipermeable membrane 61 is a thin film with selective permeability of substances. Generally, only the solvent or the solvent and small molecular solutes are allowed to pass through, but not large molecular solutes. Large molecular puerarin will be intercepted by the semipermeable membrane 61, while the solvent will penetrate into the lower part of the concentration tank 6 through the semipermeable membrane 61. The solvent and the puerarin solution are separated, concentrated and purified by the semipermeable membrane 61. The substance is connected to the external pipe connection port for discharging the liquid at the bottom of the concentration tank 6.

[0017] Embodiment 2: Based on embodiment 1, Figure 1-2As shown, it also includes a check valve 32, a steam pipe 7, a condenser 71 and a valve 8. The liquid outlet pipe 31 is installed with a check valve 32 to prevent the liquid and gas in the filter tank 4 from flowing back into the condensation tower. The left side of the upper part of the filter tank 4 is connected and communicated with the steam pipe 7 for providing heated extraction. The right side of the upper part of the filter tank 4 is connected and communicated with the condenser 71 for liquefaction reflux of steam. One end of the lower part of the condenser 71 is connected and communicated with the concentration tank 6. The solvent refluxed by liquefaction of steam will flow into the concentration tank 6. The valve 8 is installed on the pipelines of the liquid inlet pipe 5 and the condenser 71. During filtration, The valve of the condenser 71 is closed. When the steam is connected to the steam pipe 7, the valve on the liquid inlet pipe 5 is closed, and the steam carrying the solvent will flow into the condenser 71. The on-off of the two valves 8 is judged and controlled by the work flow to ensure the accuracy of the flow direction of the solvent in different processing steps. At the same time, the insoluble substances blocked by the filter membrane 41 are heated and extracted, and the organic solutes attached to the membrane and mixed with the insoluble substances are secondary extracted to maximize the extraction of organic compounds therefrom, reduce the loss of dissolved substances during filtration, and increase the yield of the extract.

[0018] In a preferred embodiment: Figure 1-2 As shown, it also includes a pressurizing tube 9. The upper part of the concentrating tube is connected and communicated with the pressurizing tube 9 which applies pressure on both sides of the semipermeable membrane 61 to maintain osmotic balance. By increasing the pressure of the solution, the solute and the solvent are brought into closer contact. At the same time, by increasing the osmotic pressure, the rate of solvent separation and purification is increased.

[0019] In a preferred embodiment: Figure 1-2 As shown, it also includes a liquid extraction pipe 10 and a liquid extraction pump 11. The upper right side of the concentration tank 6 is connected to the liquid extraction pipe 10. The left end of the liquid extraction pipe 10 is located on the upper side of the semipermeable membrane 61 inside the concentration tank 6. The liquid extraction pipe 10 is connected to the liquid extraction pump 11 for extracting the liquid blocked by the semipermeable membrane 61. The liquid extraction pump is provided to extract the concentrated and purified liquid in the concentration tank 6. There is no need to open the tank to take the liquid, which is more convenient and reduces the contamination of the extract in the tank by external factors.

[0020] In a preferred embodiment: Figure 1-2 As shown, an observation window 12 is also included. The upper front side of the concentration tank 6 is provided with an observation window 12 for the purpose of perspective in the closed container, so that the staff can timely understand the real situation in the concentration tank 6 and ensure the safety and transparency of the processing process.

[0021] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for extracting puerarin from Hovenia dulcis flavonoids, comprising a base plate (1), an extraction tank (2), a pipeline (21), a condensation tower (3) and a liquid outlet pipe (31), wherein the extraction tank (2) is arranged on the left side of the top of the base plate (1), two pipelines (21) are connected to the left side of the upper part of the extraction tank (2), the upper part of the extraction tank (2) is connected and communicated with the condensation tower (3), and the upper part of the condensation tower (3) is connected and communicated with the liquid outlet pipe (31); It is characterized in that The invention also comprises: a filter tank (4), a filter membrane (41), a liquid inlet pipe (5), a concentration tank (6) and a semipermeable membrane (61); the lower right end of the liquid outlet pipe (31) is connected to and communicated with the filter tank (4); three filter membranes (41) are arranged at intervals from top to bottom inside the filter tank (4); the bottom of the filter tank (4) is connected to and communicated with the liquid inlet pipe (5); a concentration tank (6) is arranged on the right side of the top of the bottom plate (1); the lower part of the liquid inlet pipe (5) is connected to and communicated with the left side of the upper part of the concentration tank (6); a semipermeable membrane (61) is arranged in the middle of the inner side of the concentration tank (6); and a connecting port is arranged at the bottom of the concentration tank (6).

2. The device for extracting puerarin from Hovenia dulcis flavonoids according to claim 1, characterized in that: The invention also comprises a check valve (32), a steam pipe (7), a condenser pipe (71) and a valve (8); the check valve (32) is installed on the liquid outlet pipe (31); the left side of the upper part of the filter tank (4) is connected to and communicated with the steam pipe (7); the right side of the upper part of the filter tank (4) is connected to and communicated with the condenser pipe (71); one end of the lower part of the condenser pipe (71) is connected to and communicated with the concentration tank (6); and valves (8) are installed on the pipelines of the liquid inlet pipe (5) and the condenser pipe (71).

3. The device for extracting puerarin from Hovenia dulcis flavonoids according to claim 2, characterized in that: It also includes a pressurizing pipe (9), and the upper part of the concentrating pipe is connected and communicated with the pressurizing pipe (9).

4. The device for extracting puerarin from Hovenia dulcis flavonoids according to claim 3, characterized in that: The invention also comprises a liquid extraction pipe (10) and a liquid extraction pump (11). The upper right side of the concentration tank (6) is connected to and communicates with the liquid extraction pipe (10). The liquid extraction pipe (10) is connected to the liquid extraction pump (11). The left end of the liquid extraction pipe (10) is located on one side above the semipermeable membrane (61) inside the concentration tank (6).

5. The device for extracting puerarin from Hovenia dulcis flavonoids according to claim 4, characterized in that: It also includes an observation window (12), and the upper front side of the concentration tank (6) is provided with the observation window (12).

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