Paste extracting and concentrating unit capable of preventing aromatic essential oil from volatilizing

Abstract

The utility model relates to a paste extraction and concentration unit capable of preventing aromatic essential oil from volatilizing. The paste extraction and concentration unit comprises an extraction device, a storage device and a concentration device which are connected in sequence, wherein the extraction device comprises an extraction tank, and the upper end of the extraction tank is sequentially connected with a multi-stage condenser and a first oil-water separator through a pipeline; an oil outlet and a liquid outlet of the first oil-water separator are respectively connected with the volatile oil storage tank and the extraction tank; the concentration device comprises a concentration tank, the upper end of the concentration tank is sequentially connected with a concentration condenser and a second oil-water separator through a pipeline, and an oil outlet of the second oil-water separator is connected with a volatile oil storage tank; and a feed opening of the volatile oil storage tank is connected with the concentration tank. The paste extracting and concentrating unit disclosed by the utility model can be used for effectively preventing aromatic essential oil of medicinal materials from volatilizing in the extracting and concentrating processes, so that the quality of paste is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction and concentration equipment, and particularly relates to a paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oils. Background Art

[0002] The paste prescription, also called paste agent, is named after its dosage form and belongs to one of the eight dosage forms in traditional Chinese medicine, namely pills, powders, pastes, pellets, wines, decoctions, tinctures, and lozenges. The paste prescription is a thick semi-fluid or frozen dosage form prepared by concentrating a large compound decoction and then incorporating certain adjuvants. At present, the preparation of paste is generally carried out through an extraction tank and a concentration tank. Since heating is required for both the extraction and concentration processes, when preparing a plaster containing traditional Chinese medicines with volatile oils such as tangerine peel, its aromatic essential oils such as orange peel essential oil will volatilize when heated, resulting in the loss of the aromatic smell of the concentrated paste and affecting the quality of the paste.

[0003] How to design a paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oils has become an urgent technical problem in this field. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies of the prior art and provide a paste extraction and concentration machine capable of preventing the volatilization of aromatic essential oils.

[0005] The technical solution adopted by the utility model is: a paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oils, which includes an extraction device, a storage device, and a concentration device connected in sequence; wherein,

[0006] The extraction device includes an extraction tank, and the upper end of the extraction tank is sequentially connected with a multi-stage condenser and a first oil-water separator through pipelines; the oil outlet and the liquid outlet of the first oil-water separator are respectively connected with a volatile oil storage tank and the extraction tank;

[0007] The concentration device includes a concentration tank, and the upper end of the concentration tank is sequentially connected with a concentration condenser and a second oil-water separator through pipelines, and the oil outlet of the second oil-water separator is connected with the volatile oil storage tank; the feeding port of the volatile oil storage tank is connected with the concentration tank.

[0008] Preferably, the lower end of the extraction tank is connected with an extraction pump, and the liquid outlet of the extraction pump is connected with a circulation pipeline for returning the liquid to the extraction tank and a drainage pipeline for pumping the liquid into the storage device.

[0009] Preferably, the multi-stage condenser includes a primary condenser and a secondary condenser, and the liquid outlet end of the secondary condenser is connected with the first oil-water separator.

[0010] Preferably, the storage device includes a plurality of storage tanks arranged in parallel.

[0011] Preferably, a water flow switch is provided on the pipeline connecting the storage tank and the concentration tank.

[0012] Preferably, an on-line density tester is provided on the concentration tank.

[0013] Preferably, an on-line liquid level gauge is provided on the concentration tank.

[0014] Preferably, a vacuum pump is connected to the liquid outlet of the concentration condenser.

[0015] Preferably, a condensate recovery storage tank is connected to the liquid outlet of the second oil-water separator.

[0016] Preferably, a steam pipeline is connected between the extraction tank and the concentration tank.

[0017] Preferably, a drinking water pipeline is connected to the tops of the extraction tank, the storage tank and the concentration tank.

[0018] The utility model has the following advantages compared with the prior art:

[0019] In the paste extraction and concentration unit of the utility model, a first oil-water separator and a second oil-water separator are respectively arranged on the extraction device and the concentration device, and the aromatic essential oil collected by the first oil-water separator and the second oil-water separator is stored in the volatile oil storage tank. After the paste is prepared, the aromatic essential oil in the volatile oil storage tank is added to the paste. This design can effectively prevent the aromatic essential oil of the medicinal materials from volatilizing during the extraction and concentration processes, thereby ensuring the quality of the paste. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the utility model.

[0021] The reference numerals in the figure are shown as:

[0022] 1 - Extraction device, 11 - Extraction tank, 12 - First oil-water separator, 13 - Primary condenser, 14 - Secondary condenser, 15 - Extraction pump, 16 - Circulation pipeline, 161 - Circulation valve, 17 - Drainage pipeline, 171 - Drainage valve, 18 - Liquid outlet valve, 2 - Storage device, 21 - First storage tank, 22 - Second storage tank, 23 - Water flow switch, 3 - Concentration device, 31 - Concentration tank, 311 - On-line density tester, 312 - On-line liquid level gauge, 32 - Concentration condenser, 33 - Second oil-water separator, 34 - Condensate recovery storage tank, 35 - Vacuum pump, 4 - Volatile oil storage tank, 5 - Steam pipeline, 51 - Steam regulating valve, 6 - Drinking water pipeline, 7 - Cooling water pipeline. Detailed Embodiments

[0023] To deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with the embodiments and the accompanying drawings. The present utility model can be implemented in the following manner:

[0024] Referring to Figure 1 , a paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oils, comprising an extraction device 1, a storage device 2, and a concentration device 3 connected in sequence.

[0025] Among them, the extraction device 1 includes an extraction tank 11. The upper end of the extraction tank 11 is connected in sequence through a pipeline with a multi-stage condenser and a first oil-water separator 12. The multi-stage condenser includes a primary condenser 13 and a secondary condenser 14. The liquid outlet end of the secondary condenser 14 is connected to the first oil-water separator 12, and the secondary condenser 14 serves as a buffer. The secondary condenser 14 is provided with a cooling jacket, and the cooling jacket is provided with a cooling water inlet, and the primary condenser 13 is provided with a cooling water outlet. The cooling water in the cooling water pipeline 7 first passes through the secondary condenser 14 and then enters the primary condenser 13 and then is discharged. The oil outlet and the liquid outlet of the first oil-water separator 12 are respectively connected to the volatile oil storage tank 4 and the extraction tank 11. During the extraction process, the oil-gas mixture in the extraction tank 11 is heated and volatilized and accumulates at the top of the extraction tank 11, then enters the primary condenser 13 and is liquefied by cooling, then enters the secondary condenser 14, and finally enters the first oil-water separator 12; the first oil-water separator 12 is controlled by a valve to separate, store the aromatic essential oil in the volatile oil storage tank 4, and return the condensed water to the extraction tank 11 as an extraction solvent. This design enables the extraction process to only require adding the solvent once and can also prevent the volatilization of aromatic essential oils during the extraction process.

[0026] The lower end of the extraction tank 11 is connected with an extraction pump 15. The liquid outlet of the extraction pump 15 is connected with a circulation pipeline 16 for returning the liquid to the extraction tank 11 and a drain pipeline 17 for pumping the liquid to the storage device 2. A liquid outlet valve 18 is provided on the pipeline between the extraction tank 11 and the extraction pump 15. A circulation valve 161 is provided on the circulation pipeline 16. A drain valve 171 is provided on the drain pipeline 17. During the extraction process, the extraction pump 15 can be used as a circulation pump to pump out the solution and then return it to the extraction tank 11, so as to achieve the purpose of circulating extraction and prevent the uneven temperature in the extraction tank 11 during the extraction process. When the extraction is completed, the extraction pump 15 can pump the extract to the storage device 2.

[0027] The storage device 2 includes a number of storage tanks arranged in parallel. In this embodiment, two storage tanks are provided, namely a first storage tank 21 and a second storage tank 22.

[0028] The described concentration device 3 includes a concentration tank 31. The upper end of the concentration tank 31 is sequentially connected to a concentration condenser 32 and a second oil-water separator 33 through pipelines. The oil outlet of the second oil-water separator 33 is connected to the volatile oil storage tank 4, and the discharge port of the volatile oil storage tank 4 is connected to the concentration tank 31. The liquid outlet of the second oil-water separator 33 is connected to a condensate recovery storage tank 34. During the concentration process, the extraction liquid in the concentration tank 31 is heated, causing the oil-gas mixture to volatilize and accumulate at the top of the concentration tank 31, then enter the concentration condenser 32 to be liquefied by cooling, and finally enter the second oil-water separator 33. The second oil-water separator 33 is controlled by valves for separation, storing the aromatic essential oil in the volatile oil storage tank 4 and recovering the condensate to the condensate recovery storage tank 34. This design can prevent the volatilization of aromatic essential oil during the concentration process.

[0029] A water flow switch 23 is provided on the pipeline connecting the storage tank and the concentration tank 31. An on-line density tester 311 is provided on the concentration tank 31, which can detect the density of the paste in the concentration tank 31 at any time. An on-line liquid level gauge 312 is provided on the concentration tank 31. When the solution level in the concentration tank 31 is lower than the preset value, the system controls to open the water flow switch 23 to pump the extraction liquid in the storage tank into the concentration tank 31. The system continuously repeats the above steps through the on-line liquid level gauge 312 until all the extraction liquid in the storage tank is completely transferred into the concentration tank 31. The liquid outlet of the concentration condenser 32 is connected to a vacuum pump 35, so that a negative pressure is maintained in the concentration tank 31.

[0030] The extraction tank 11 and the concentration tank 31 are connected by a steam pipeline 5. A steam regulating valve 51 is provided on the steam pipeline 5. In this embodiment, both the extraction tank 11 and the concentration tank 31 are heated by steam. Drinking water pipelines 6 are connected to the tops of the extraction tank 11, the storage tank, and the concentration tank 31.

[0031] Usage method: First, put the medicinal materials into the extraction tank 11. Set the water addition amount according to the feeding amount, and automatically add drinking water as the extraction solvent through the flow meter. After the solution reaches the pre-examination temperature, the extraction pump 15 will automatically circulate the solution to the extraction tank 11. During the extraction process, the oil-gas mixture in the extraction tank 11 is heated and vaporized, gathers at the top of the extraction tank 11, then enters the first condenser 13 to be liquefied by cooling, then enters the second condenser 14, and finally enters the first oil-water separator 12. The first oil-water separator 12 is controlled by a valve for separation, stores the aromatic essential oil in the volatile oil storage tank 4, and returns the condensed water to the extraction tank 11 as the extraction solvent. After the extraction is completed, the extraction pump 15 transfers the extract in the extraction tank 11 to two storage tanks. Use the vacuum pump 35 to make the inside of the concentration tank 31 in a negative pressure state, and pump the extract in the storage tank into the concentration tank 31 for concentration. During the concentration process, the oil-gas mixture in the concentration tank 31 is heated and enters the concentration condenser 32 to be liquefied by cooling, and finally enters the second oil-water separator 33. The second oil-water separator 33 stores the aromatic essential oil in the volatile oil storage tank 4, and recovers the condensed water into the condensed water recovery storage tank 34. When the concentration is completed, after the temperature of the paste drops to the preset temperature, the aromatic essential oil in the volatile oil storage tank 4 is added back into the paste again.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oils, characterized in that: It comprises an extraction device, a storage device (2) and a concentration device (3) which are connected in sequence; wherein: The extraction device (1) comprises an extraction tank (11), the upper end of which is sequentially connected to a multi-stage condenser and a first oil-water separator (12) via a pipeline; the oil outlet and liquid outlet of the first oil-water separator (12) are respectively connected to a volatile oil storage tank (4) and the extraction tank (11); The concentrating device (3) comprises a concentrating tank (31), the upper end of which is connected in sequence to a concentrating condenser (32) and a second oil-water separator (33) via pipelines, the oil outlet of the second oil-water separator (33) being connected to a volatile oil storage tank (4); and the feed outlet of the volatile oil storage tank (4) being connected to the concentrating tank (31).

2. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 1, characterized in that: The lower end of the extraction tank (11) is connected to an extraction pump (15), and the liquid outlet of the extraction pump (15) is connected to a circulation pipeline (16) for returning the liquid to the extraction tank (11) and a discharge pipeline (17) for pumping the liquid into the storage device (2).

3. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 1, characterized in that: The multi-stage condenser comprises a primary condenser (13) and a secondary condenser (14), and the liquid outlet end of the secondary condenser (14) is connected to the first oil-water separator (12).

4. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to any one of claims 1 to 3, characterized in that: The storage device (2) comprises a plurality of storage tanks arranged in parallel.

5. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 4, characterized in that: A water flow switch (23) is provided on the pipeline connecting the storage tank and the concentration tank (31).

6. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 1, 2, 3 or 5, characterized in that: The concentration tank (31) is provided with an online density tester (311).

7. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 6, characterized in that: The concentration tank (31) is provided with an online liquid level meter (312).

8. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 1, 2, 3, 5 or 7, characterized in that: The liquid outlet of the concentrating condenser (32) is connected to a vacuum pump (35).

9. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 1, 2, 3, 5 or 7, characterized in that: The liquid outlet of the second oil-water separator (33) is connected to a condensed water recovery tank (34).

10. A paste extraction and concentration unit capable of preventing the volatilization of aromatic essential oil according to claim 1, 2, 3, 5 or 7, characterized in that: The extraction tank (11) and the concentration tank (31) are connected to a steam pipeline (5), and the tops of the extraction tank (11), the storage tank and the concentration tank (31) are all connected to a drinking water pipeline (6).

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