Continuous extraction device and extraction method for traditional Chinese medicine raw materials

Abstract

The invention provides a continuous extraction device and method for traditional Chinese medicine raw materials, the continuous extraction device comprises a pretreatment mechanism for breaking holes in medicinal materials and at least one group of extraction units, and each extraction unit comprises a high-pressure infiltration mechanism and a low-pressure extraction mechanism located below the high-pressure infiltration mechanism; a first discharge port of the high-pressure soaking mechanism is communicated with a second feed port of the low-pressure extraction mechanism through a first pipeline, a first valve is arranged at the first discharge port of the high-pressure soaking mechanism, and a second valve is arranged at the second feed port of the low-pressure extraction mechanism. The device can better extract non-powdery herbs at a lower temperature, in addition, due to the control of the temperature and the time, the extraction temperature does not reach 100 DEG C in the extraction process, and pasteurization is performed on liquid medicine while more medicine properties are kept.

Description

technical field [0001] The invention relates to the technical field of continuous extraction of traditional Chinese medicines, in particular to a continuous extraction device and an extraction method of traditional Chinese medicine raw materials. Background technique [0002] The chemical composition of traditional Chinese medicine is very complex. It contains a variety of active ingredients, ineffective ingredients, and toxic ingredients. Extracting its active ingredients and further separating and purifying them to obtain effective monomers is an important content in the field of traditional Chinese medicine research. The extraction of traditional Chinese medicine is to use some techniques to extract the active ingredients to the maximum extent, so as to improve the internal quality of traditional Chinese medicine preparations and the clinical treatment effect, so that the effect of traditional Chinese medicine can be maximized. [0003] Traditional extraction methods for...

AI Technical Summary

Problems solved by technology

Among them, water decoction is the most commonly used method, but this method needs to heat the medicinal materials and water to boiling and decoct for a long time, which will destroy the active ingredients in the medicine to a certain extent, and has certain disadvantages

At present, there are some decoction equipment that can reduce the boiling point by adjusting the internal pressure of the extraction tank. However, due to the low temperature of this method, the extraction efficiency of the active ingredients in the drug is very low, which makes the entire extraction time long and the extraction of the drug ingredients is not complete.

[0004] There are also ultra-high pressure extraction equipment in the prior art, but considering the working principle of the ultra-high pressure extraction equipment, the raw material of the drug needs to be broken as much as possible, so the drug added in the high-pressure tank is basically dehydrated and ground into powder, but the active ingredient is not dehydrated and ground The loss is serious, so it is not suitable for the extraction of all pharmaceutical raw materials, and there is currently no technology that combines ultra-high pressure and low-pressure extraction

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