Device and method for extracting and concentrating traditional Chinese medicine

A technology for concentrating devices and traditional Chinese medicine, applied in separation methods, chemical instruments and methods, solid solvent extraction, etc., can solve the problems of low extraction and transfer rate of active ingredients, low evaporation efficiency of concentrating devices, high heat energy consumption, etc.

Inactive Publication Date: 2013-04-17
GUANGDONG MEDICAL UNIV
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  • Abstract
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Problems solved by technology

[0003] In the prior art, the extraction and concentration process of Chinese medicinal materials is divided into two stages of extraction and concentration. During the extraction process, Chinese medicinal materials and solvents are put into the extraction container, and then heated and reacted under normal pressure for a period of time to make the extraction container The medicinal material is dissolved in the solvent; after the extraction is completed, the medicinal liquid in the extraction container is transferred to a concentration device (such as a rotary evaporator), and the water and solvent in the medicinal liquid are further evaporated by heating to achieve the purpose of concentration; the above process and The disadvantages of the equipment are: 1) The heating time of the two stages of extraction and concentration is long, resulting in high energy consumption; 2) Long-term heating will destroy the active ingredients of the drug, and the heating in the process of extraction and concentration is at normal pressure and 100°C It is carried out under high temperature conditions, and high temperature will have a great impact on heat-sensitive traditional Chinese medicine; 3) The existing extractor has a lot of residual medicinal liquid, the extraction and transfer rate of active ingredients is low, and the concentration device evaporates low efficiency

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  • Device and method for extracting and concentrating traditional Chinese medicine

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Embodiment 1

[0050] Embodiment 1 of a kind of Chinese medicine extracting and concentrating device of the present invention is as figure 1 As shown, it includes an extraction unit and a concentration unit. The extraction unit includes an extraction tank 1 and a medicinal liquid storage tank 2. The extraction tank 1 and the medicinal liquid storage tank 2 are communicated through a first infusion tube 21. A piston 13 is arranged in the extraction tank 1. 13 is tightly connected with the tank inner wall of the extraction tank 1 without leakage. The piston 13 divides the inner space of the extraction tank 1 into an upper pressurized chamber 11 and a lower pressurized chamber 12. Move to pressurize the upper pressurized chamber 11, so as to further squeeze the medicinal dregs and improve the extraction rate of medicinal materials. The upper pressurized chamber 11 is provided with an agitator;

[0051] In this embodiment, the concentrating unit includes a concentrating container 5, a vacuum pu...

Embodiment 2

[0066] A kind of method for extracting and concentrating Chinese medicine of the present invention, such as figure 1 As shown, the method adopts the Chinese medicine extracting and concentrating device of embodiment 1 to carry out.

[0067] The method for extracting and concentrating comprises the following steps:

[0068] 1) Sub-high pressure extraction

[0069] Add the Chinese herbal medicine and the solvent into the extraction tank 1 according to the weight ratio of 1:6 to 1:10. At this time, the piston 12 is at the bottom of the extraction tank 1, and then turn on the stirrer and the heating device, and move the piston 13 upward to make the upper The pressure in the pressurization chamber 11 is controlled at 10-20Mpa, the temperature is at 80-100°C, keep it for 5-30 minutes, stop heating, and when the pressure in the extraction tank 1 returns to normal pressure, collect the liquid medicine, and when the liquid medicine flows out, The piston 13 continues to slowly rise t...

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Abstract

The invention relates to the technical field of extracting and concentrating of the traditional Chinese medicine, and in particular relates to a method and a device for extracting and concentrating the traditional Chinese medicine. The method for extracting and concentrating structurally comprises an extracting unit and a concentrating unit, wherein the extracting unit comprises an extracting tank and a liquid medicine storage tank, wherein a piston capable of moving up and down is arranged in the extracting tank; when the piston moves upwards under the action of the driving force, dredges of decoction in a pressurizing chamber are pressurized and further squeezed; the concentrating unit comprises a concentrating container, a vacuum pump and a heating device for heating up the concentrating container, wherein a step-shaped evaporation plate assembly of a liquid medicine thin film is formed in the concentrating container, so that the liquid medicine can be circulated and concentrated. Compared with the prior art, the extracting and concentrating efficiency is high, the heating time is short, and the damages to the active ingredients of the medicine are reduced.

Description

technical field [0001] The invention relates to the technical field of extracting and concentrating traditional Chinese medicines, in particular to a device for extracting and concentrating traditional Chinese medicines and a method for extracting and concentrating traditional Chinese medicines using the device. Background technique [0002] There are many kinds of Chinese herbal medicines, which have a wide range of pharmacological effects, and their curative effects are increasingly valued in the world today, so they have broad development potential, and more and more people are devoted to the research and development of Chinese herbal medicines. To realize the medicinal value of traditional Chinese medicine, the extraction and concentration process of traditional Chinese medicine and its equipment are crucial to the research and development of traditional Chinese medicine, which directly affects the extraction rate of active ingredients of medicine, the utilization rate of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01D1/00
Inventor 赵文昌宋丽军温凯航吴铁典灵辉
Owner GUANGDONG MEDICAL UNIV
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