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Dynamic countercurrent extraction device for traditional Chinese medicinal materials and extraction method thereof

A dynamic countercurrent, extraction device technology, applied in separation methods, chemical instruments and methods, solvent extraction, etc., can solve the problems of low extraction efficiency of traditional Chinese medicine, low solvent utilization rate, etc., saving heating time, saving solvent, and high utilization efficiency. Effect

Pending Publication Date: 2022-03-11
山东省医药工业设计院有限公司
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Problems solved by technology

[0004] Aiming at the problems of low extraction efficiency and low solvent utilization rate of traditional Chinese medicines in the prior art, the present invention provides a dynamic countercurrent extraction device for Chinese medicinal materials and an extraction method thereof. Using the traditional Chinese medicine extraction device of the present invention, the concentration of medicinal liquid in the extraction liquid With continuous improvement, the extraction efficiency of traditional Chinese medicine dregs is continuously improved, and it can be fed continuously and automatically discharged, which is conducive to the promotion of industrialization

Method used

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  • Dynamic countercurrent extraction device for traditional Chinese medicinal materials and extraction method thereof
  • Dynamic countercurrent extraction device for traditional Chinese medicinal materials and extraction method thereof

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Embodiment 1

[0033] Taking licorice extraction as an example, the solvent is 95% ethanol solution, the pressure in the tank is normal pressure, and the extraction temperature is 60-70°C;

[0034] (1) Transport the qualified granular licorice to the workshop, add it to the material tank in the primary extraction tank 1 from the feed port Ι 2, add the extract from the liquid inlet Ш 15, pass through the liquid outlet Ш 17, enter Liquid port П 10, liquid outlet П 12, and liquid inlet Ι 3 enter the material tank of the first-stage extraction tank 3, and are heated to 65° C. through the heating jacket 24, and the extracts flowing through the Chinese herbal medicine have the effect on the active ingredients in the Chinese herbal medicine. For extraction, the extraction liquid is circulated three times through the internal circulation system, once in each cycle, the extrusion structure 22 installed on one side of the movable filter plate 21 squeezes the filter plate once to fully squeeze out the e...

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Abstract

The dynamic countercurrent extraction device comprises multiple stages of extraction tanks which are connected from top to bottom, and each stage of extraction tank comprises a barrel body, a material tank, a feed port, a liquid inlet, a discharge port and a liquid outlet; the feed port and the liquid inlet are located at an upper opening of the material tank, the liquid outlet is located below the barrel, the discharge port is provided with a baffle, and a tank body of the material tank is of a filter plate structure; the discharge hole in the previous-stage extraction tank is connected with the feed hole in the next-stage extraction tank through an automatic slag discharge connecting cylinder; and the liquid inlet of the previous-stage extraction tank is connected with the liquid outlet of the next-stage extraction tank through an external circulating pipeline to form an external circulating system. Traditional Chinese medicinal materials are continuously fed from top to bottom, active ingredients in the medicinal materials are continuously reduced, an extraction solvent is subjected to multi-stage extraction from bottom to top, the content of the active ingredients in an extracting solution is continuously increased, the utilization efficiency of the solvent is high, continuous feeding and automatic deslagging can be achieved, and industrial popularization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of extraction of traditional Chinese medicinal materials, and in particular relates to a dynamic countercurrent extraction device for traditional Chinese medicinal materials and an extraction method thereof. Background technique [0002] The extraction of traditional Chinese medicine is an important unit operation in the production process of traditional Chinese medicine, and its process method, selection of process flow and equipment configuration will directly affect the quality and clinical effect of traditional Chinese medicine. The extraction method of traditional Chinese medicine in my country mostly adopts single-tank extraction, that is, the traditional Chinese medicine and the corresponding solvent are introduced into the extraction tank, heated and stirred. In order to ensure the extraction rate of traditional Chinese medicine in the follow-up, after the first extraction, solvents are generally add...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01D36/00
CPCB01D11/0284B01D36/00
Inventor 季成旭
Owner 山东省医药工业设计院有限公司
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