Medicine extraction device

Abstract

The utility model relates to the field of extraction, in particular to a medicine extraction device which comprises a waste liquid collecting tank, an ethanol storage tank, a mixing tank, an extraction tank and a steam generator, the ethanol storage tank is connected with the mixing tank through a first water pump and a fourth valve, and the waste liquid collecting tank is connected with the mixing tank through a second water pump and a fifth valve. A purified water source is connected with a mixing tank through a sixth valve, an ethanol concentration measuring device used for measuring the concentration of ethanol in the mixing tank is installed on the mixing tank, the mixing tank is connected with an extraction tank through a third water pump and a tenth valve, and the top of the extraction tank is connected with a waste liquid collecting tank through a ninth valve. The lower part of the extraction tank is connected with a steam outlet of the steam generator through an eighth valve, an evaporation chamber of the steam generator is connected with a purified water source through a first valve, and the waste liquid collection tank is connected with the evaporation chamber of the steam generator through a fourth water pump and a second valve.

Description

Technical Field

[0001] The utility model relates to the field of extraction, in particular to the field of extraction of medicinal components of medicinal materials. Background Art

[0002] Extraction, also known as solvent extraction, liquid-liquid extraction, or extraction, is a unit operation that separates a mixture by exploiting the different solubilities of the components in the system. Specifically, it is a method that utilizes the differences in solubility or partition coefficients between two immiscible (or slightly soluble) solvents to transfer a solute from one solvent to another.

[0003] The extraction of medicinal ingredients from medicinal materials is a continuous process that often requires the use of alcohol as an extractant. The extraction process often requires heating and separation, and the heating requires the use of water vapor. During the extraction process, alcohol is often recycled, but when the recovered alcohol concentration is low, it is not worth recycling and needs to be directly discharged, resulting in waste. When the existing astragalus uses alcohol as an extractant to extract medicinal ingredients, water vapor is used as a heating medium. During the extraction process, a large amount of waste liquid carrying medicinal ingredients and alcohol is generated. When the medicinal ingredients and alcohol content in the waste liquid are low, it is often not worth recycling and needs to be discharged in vain. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to effectively utilize waste liquid containing relatively low concentrations of medicinal components and alcohol to reduce waste.

[0005] The technical solution adopted by the utility model is: a drug extraction device, comprising a waste liquid collection tank 1, an ethanol storage tank 2, a mixing tank 3, an extraction tank 4, and a steam generator 5, wherein the ethanol storage tank 2 is connected to the mixing tank 3 through a first water pump and a fourth valve 11, the waste liquid collection tank 1 is connected to the mixing tank 3 through a second water pump and a fifth valve 12, a pure water source is connected to the mixing tank 3 through a sixth valve 13, an ethanol concentration measuring device 17 for measuring the ethanol concentration in the mixing tank 3 is installed on the mixing tank 3, the mixing tank 3 is connected to the extraction tank 4 through a third water pump and a tenth valve 19, the top of the extraction tank 4 is connected to the waste liquid collection tank 1 through a ninth valve 16, the lower part of the extraction tank 4 is connected to the steam outlet of the steam generator 5 through an eighth valve 15, the evaporation chamber of the steam generator 5 is connected to the pure water source through a first valve 8, the waste liquid collection tank 1 is connected to the evaporation chamber of the steam generator 5 through a fourth water pump and a second valve 9, the waste liquid collection tank 1 is connected to the waste liquid collector through a third valve 10, and a spiral impurity remover 7 is installed in the waste liquid collection tank 1.

[0006] The mixing tank 3 is provided with an agitator 18 .

[0007] A cyclone separator 6 is connected between the extraction tank 4 and the waste liquid collection tank 1 , and an impurity outlet of the cyclone separator 6 is connected to the extraction tank 4 .

[0008] The bottom of the waste liquid collection tank 1 is tapered, and the spiral debris remover 7 is vertically installed in the waste liquid collection tank 1. The spiral debris remover 7 includes a transmission pipe 71 fixed to the upper cover of the waste liquid collection tank 1, a motor 73, a spiral shaft 74 connected to the rotating shaft of the motor 73, and a spiral blade 75 on the spiral shaft 74. The lower end of the spiral shaft 74 extends out of the transmission pipe 71, and the part of the transmission pipe 71 on the outside of the upper cover has a debris outlet 76.

[0009] The top cover of the extraction tank 4 is provided with an exhaust pipe with a seventh valve 14 .

[0010] During the first use of the present invention, all valves are closed. The fourth valve 11 and the sixth valve 13 are opened to observe the ethanol concentration measuring device. The ethanol stored in the ethanol storage tank 2 and the purified water from the purified water source are discharged into the mixing tank 3 in an appropriate proportion for mixing to obtain ethanol for extraction at a set concentration. When the set concentration of ethanol in the mixing tank 3 reaches a set amount, the fourth valve 11 and the sixth valve 13 are closed. The top cover of the extraction tank 4 is opened, and the medicinal material to be extracted, such as astragalus, is placed in the extraction tank 4, and the top cover is closed. The tenth valve 19 is opened to allow the ethanol for extraction at a set concentration in the mixing tank 3 to be placed in the extraction tank 4. When the amount of ethanol in the extraction tank 4 meets the requirement, the tenth valve 19 is closed. After opening first valve 8 and injecting an appropriate amount of pure water into the evaporation chamber of steam generator 5, first valve 8 is closed to heat the evaporation chamber of steam generator 5. Eighth valve 15 is opened to allow water vapor generated in the evaporation chamber to enter extraction tank 4, heating the ethanol and drug in extraction tank 4. Seventh valve 14 is opened to an appropriate degree to prevent excessive pressure in extraction tank 4. Ninth valve 16 is opened to activate cyclone separator 6. The vapor generated in extraction tank 4 (including ethanol, water, and some drug components) is condensed, refluxed, and separated in cyclone separator 6. Uncondensed vapor enters waste liquid collection tank 1 for condensation. When waste liquid in waste liquid collection tank 1 reaches a predetermined amount, if the evaporation chamber of steam generator 5 is depleted of water, first valve 8 is no longer opened, but second valve 9 is opened to allow the waste liquid (primarily composed of water and ethanol) to enter the evaporation chamber of steam generator 5. The steam (water vapor and ethanol vapor) generated in the evaporation chamber is then used to heat extraction tank 4. When the waste liquid in the waste liquid collection tank 1 reaches a set amount, the sixth valve 13 is no longer opened to dilute the ethanol with purified water, but rather with the waste liquid. Once the medicinal material in the extraction tank 4 has been effectively extracted, the top cover of the extraction tank 4 is opened to remove the extract containing the medicinal ingredients, remove the medicinal impurities, and then add new medicinal material to continue extraction.

[0011] The beneficial effect of the utility model is that, compared with the prior art of directly discharging the waste liquid generated after the cyclone separator, more ethanol and more effective components of the medicine are effectively recovered and utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the spiral debris remover of the present utility model;

[0014] Among them, 1. waste liquid collection tank, 2. ethanol storage tank, 3. mixing tank, 4. extraction tank, 5. steam generator, 6. cyclone separator, 7. spiral impurity collector, 8. first valve, 9. second valve, 10. third valve, 11. fourth valve, 12. fifth valve, 13. sixth valve, 14. seventh valve, 15. eighth valve, 16. ninth valve, 17. ethanol concentration measuring device, 18. agitator, 19. tenth valve. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, a drug extraction device includes a waste liquid collection tank 1, an ethanol storage tank 2, a mixing tank 3, an extraction tank 4, and a steam generator 5. The waste liquid collection tank 1, the ethanol storage tank 2, and the mixing tank 3 can adopt the shapes of existing commonly used liquid tanks.

[0016] The ethanol storage tank 2 is connected to the mixing tank 3 via a first water pump and a fourth valve 11 to deliver the required amount of ethanol to the mixing tank 3 for mixing. The waste liquid collection tank 1 is connected to the mixing tank 3 via a second water pump and a fifth valve 12 to deliver the liquid in the waste liquid collection tank 1 to the mixing tank 3 for mixing. A pure water source is connected to the mixing tank 3 via a sixth valve 13 to replenish water when the liquid in the waste liquid collection tank 1 is insufficient, and to mix the water with the ethanol. Ultimately, the ethanol concentration in the mixing tank 3 reaches the set requirement.

[0017] The mixing tank 3 is equipped with an ethanol concentration measuring device 17 for measuring the ethanol concentration in the mixing tank 3. This device uses existing instruments to detect whether the ethanol concentration in the mixing tank 3 meets the set requirements. When the set requirements are met and the total amount of liquid in the mixing tank 3 reaches the set amount, the fifth valve 12, the fourth valve 11, and the sixth valve 13 are all closed. Otherwise, some of the valves are controlled to open. The mixing tank 3 is connected to the extraction tank 4 via a third water pump and a tenth valve 19. The ethanol mixture of the mixing tank 3 with the set concentration is input into the extraction tank 4 as the extract. The top of the extraction tank 4 is connected to the waste liquid collection tank 1 via a ninth valve 16, which inputs steam and condensate into the waste liquid collection tank 1. The bottom of the extraction tank 4 is connected to the steam outlet of the steam generator 5 via an eighth valve 15. The steam from the steam outlet heats the liquid in the extraction tank 4. The evaporation chamber of the steam generator 5 is connected to a pure water source through a first valve 8, the waste liquid collecting tank 1 is connected to the evaporation chamber of the steam generator 5 through a fourth water pump and a second valve 9, the waste liquid collecting tank 1 is connected to a waste liquid collector through a third valve 10, and a spiral impurity remover 7 is installed in the waste liquid collecting tank 1, which removes (reduces) sediment deposited in the waste liquid collecting tank 1.

[0018] The mixing tank 3 is provided with an agitator 18 to mix the liquid in the mixing tank 3 quickly and evenly.

[0019] A cyclone separator 6 is connected between the extraction tank 4 and the waste liquid collection tank 1, and the impurity outlet of the cyclone separator 6 is connected to the extraction tank 4. The impurities separated by the cyclone separator 6 contain beneficial components and are directly returned to the extraction tank 4. The steam separated by the cyclone separator 6 enters the waste liquid collection tank 1 for condensation (note that it will inevitably contain a small amount of impurities).

[0020] The bottom of the waste liquid collection tank 1 is tapered (which is beneficial for the concentration of solid sediment and is convenient for subsequent removal). The spiral impurity remover 7 is vertically installed in the waste liquid collection tank 1. Figure 2 As shown, the spiral debris collector 7 includes a transmission pipe 71 fixed to the upper cover of the waste liquid collection tank 1, a motor 73, a spiral shaft 74 connected to the rotating shaft of the motor 73, and a spiral blade 75 on the spiral shaft 74. The lower end of the spiral shaft 74 extends out of the transmission pipe 71, and the part of the transmission pipe 71 on the outside of the upper cover has a debris outlet 76.

[0021] The top cover of the extraction tank 4 is provided with an exhaust pipe with a seventh valve 14 . The seventh valve 14 is closed during operation and is opened during maintenance or when the pressure in the extraction tank 4 is too high.

[0022] The biggest difference between the present invention and the prior art is that the evaporation chamber of the steam generator 5 in the present invention can be placed in waste liquid instead of only pure water. When preparing the extraction liquid, not only pure water but also waste liquid can be used, thereby not only reducing water consumption but also effectively utilizing the effective components in the waste liquid.

[0023] During the use of the present invention, when it is used for the first time, all valves are closed, the fourth valve 11 and the sixth valve 13 are opened to observe the ethanol concentration measuring device, and the ethanol stored in the ethanol storage tank 2 and the pure water from the pure water source are discharged into the mixing tank 3 in an appropriate proportion to mix to obtain ethanol for extraction of the set concentration. When the ethanol of the set concentration in the mixing tank 3 reaches the set amount, the fourth valve 11 and the sixth valve 13 are closed. When the amount of ethanol of the set concentration in the mixing tank 3 is less than the set value, water or waste liquid is used to prepare an ethanol solution of the set concentration. The top cover of the extraction tank 4 is opened, and the medicine to be extracted, such as astragalus, is placed in the extraction tank 4, and the top cover is covered. The tenth valve 19 is opened to allow the ethanol for extraction of the set concentration in the mixing tank 3 to be placed in the extraction tank 4. When the amount of ethanol in the extraction tank 4 meets the requirements, the tenth valve 19 is closed. After opening first valve 8 and injecting an appropriate amount of pure water into the evaporation chamber of steam generator 5, first valve 8 is closed to heat the evaporation chamber of steam generator 5. Eighth valve 15 is opened to allow water vapor generated in the evaporation chamber to enter extraction tank 4, heating the ethanol and drug in extraction tank 4. Seventh valve 14 is opened to an appropriate degree to prevent excessive pressure in extraction tank 4. Ninth valve 16 is opened to activate cyclone separator 6. The vapor generated in extraction tank 4 (including ethanol, water, and some drug components) is condensed, refluxed, and separated in cyclone separator 6. Uncondensed vapor enters waste liquid collection tank 1 for condensation. When waste liquid in waste liquid collection tank 1 reaches a predetermined amount, if the evaporation chamber of steam generator 5 is depleted of water, first valve 8 is no longer opened, but second valve 9 is opened to allow the waste liquid (primarily composed of water and ethanol) to enter the evaporation chamber of steam generator 5. The steam (water vapor and ethanol vapor) generated in the evaporation chamber is then used to heat extraction tank 4. When the waste liquid in the waste liquid collection tank 1 reaches a set amount, the sixth valve 13 is no longer opened to dilute the ethanol with purified water, but rather with the waste liquid. Once the medicinal material in the extraction tank 4 has been effectively extracted, the top cover of the extraction tank 4 is opened to remove the extract containing the medicinal ingredients, remove the medicinal impurities, and then add new medicinal material to continue extraction.

Claims

1. A drug extraction device, characterized in that: The invention comprises a waste liquid collection tank (1), an ethanol storage tank (2), a mixing tank (3), an extraction tank (4), and a steam generator (5). The ethanol storage tank (2) is connected to the mixing tank (3) via a first water pump and a fourth valve (11). The waste liquid collection tank (1) is connected to the mixing tank (3) via a second water pump and a fifth valve (12). A pure water source is connected to the mixing tank (3) via a sixth valve (13). An ethanol concentration measuring device (17) for measuring the ethanol concentration in the mixing tank (3) is installed on the mixing tank (3). The mixing tank (3) is connected to the mixing tank (3) via a third water pump and a tenth valve (19). The extraction tank (4) is connected, the top of the extraction tank (4) is connected to the waste liquid collection tank (1) through the ninth valve (16), the lower part of the extraction tank (4) is connected to the steam outlet of the steam generator (5) through the eighth valve (15), the evaporation chamber of the steam generator (5) is connected to the pure water source through the first valve (8), the waste liquid collection tank (1) is connected to the evaporation chamber of the steam generator (5) through the fourth water pump and the second valve (9), the waste liquid collection tank (1) is connected to the waste liquid collector through the third valve (10), and a spiral impurity remover (7) is installed in the waste liquid collection tank (1).

2. A drug extraction device according to claim 1, characterized in that: The mixing tank (3) is equipped with an agitator (18).

3. A drug extraction device according to claim 1, characterized in that: A cyclone separator (6) is connected between the extraction tank (4) and the waste liquid collection tank (1), and an impurity outlet of the cyclone separator (6) is connected to the extraction tank (4).

4. A drug extraction device according to claim 1, characterized in that: The bottom of the waste liquid collection tank (1) is tapered, and the spiral impurity remover (7) is vertically installed in the waste liquid collection tank (1). The spiral impurity remover (7) comprises a transmission pipe (71) fixed to the upper cover of the waste liquid collection tank (1), a motor (73), a spiral shaft (74) connected to the rotating shaft of the motor (73), and a spiral blade (75) on the spiral shaft (74). The lower end of the spiral shaft (74) extends outside the transmission pipe (71), and the portion of the transmission pipe (71) outside the upper cover has an impurity outlet (76).

5. A drug extraction device according to claim 1, characterized in that: The top cover of the extraction tank (4) is provided with an exhaust pipe with a seventh valve (14).

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