Supercritical extraction device for effective components of Chinese herbal medicines

Abstract

The invention relates to the technical field of extraction of effective components of Chinese herbal medicines, in particular to a supercritical extraction device for effective components of Chinese herbal medicines. The supercritical extraction device comprises a first plate, a second plate, a third plate, first rods, second rods, a stirring mechanism, a liquid extracting pump, a separation mechanism, a liquid accumulation mechanism, a third rod, a decompression pump, side plates, a connecting plate, a CO2 tank and a heating mechanism, wherein the second plate is arranged above the first plate, the third plate is arranged above the second plate, the four first rods are vertically and fixedly connected between the first plate and the second plate, the four first rods have the same specifications and are distributed in a rectangular array, the four second rods are vertically and fixedly connected between the third plate and the second plate, the four second rods have the same specifications and are distributed in a rectangular array, the stirring mechanism is arranged between the first plate and the third plate, the liquid extracting pump is fixedly mounted in the center of the upper end surface of the second plate, the separation mechanism is fixedly mounted on the upper end surface of the second plate, and the liquid accumulation mechanism is fixedly mounted on the upper end surface of the first plate.

Description

technical field [0001] The invention belongs to the technical field of extracting active ingredients of Chinese herbal medicines, and specifically relates to a supercritical extractor for active ingredients of Chinese herbal medicines. Background technique [0002] At present, the active ingredients of Chinese herbal medicine are extracted using supercritical extractors, which use the relationship between the dissolving ability of supercritical fluid and its density, that is, the influence of pressure and temperature on the dissolving ability of supercritical fluid. [0003] In the process of preparing honeysuckle essential oil, due to the small relative movement between honeysuckle essential oil and water storage, the leaves of Chinese herbal medicine are not evenly moistened, and the extraction effect of active ingredients is reduced; the effective ingredients of traditional Chinese herbal medicine supercritical extractor carbon dioxide due to low ambient temperature leads ...

AI Technical Summary

Problems solved by technology

[0003] In the process of preparing honeysuckle essential oil, due to the small relative movement between honeysuckle essential oil and water storage, the leaves of Chinese herbal medicine are not evenly moistened, and the extraction effect of active ingredients is reduced; the active ingredient of traditional Chinese herbal medicine is supercritical extractor carbon dioxide due to the low ambient temperature. The movement of carbon dioxide molecules Inactive, the extraction efficiency of carbon dioxide on the active ingredients of traditional Chinese medicine is low, and it cannot be recycled efficiently, resulting in waste of resources; due to the discharge of carbon dioxide storage tanks, the rate of carbon dioxide is not consistent, resulting in unstable control of carbon dioxide pressure, which is likely to cause uneven gas-liquid mixing, resulting in The extraction effect of active ingredients is reduced, so it is necessary to design a supercritical extractor for active ingredients of Chinese herbal medicine

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