Continuous countercurrent extraction device for traditional Chinese medicine

Abstract

The invention relates to a continuous countercurrent extraction device for traditional Chinese medicine. The continuous countercurrent extraction device comprises an extraction tank provided with a feeding port, and further comprises outer cam supporting tubes, outer cams, slagging doors, a rotary receiving tank, a central support, a rotating shaft, a motor, an extracting solution spray pipe and an extracting solution collecting tray which are arranged in the extraction tank, wherein the rotary receiving tank is mounted on the rotating shaft in a sleeving manner, and two ends of the rotating shaft are rotationally connected with the top of the extraction tank and the central support respectively; multiple receiving cavities are formed in the circumferential direction of the rotary receiving tank, the bottoms of the multiple receiving cavities are hinged with one side of one slagging door provided with meshes, the two annular outer cam supporting tubes are arranged in the circumferential direction in the extraction tank, the outer cams are arranged on the corresponding outer cam supporting tubes, and the other side of the slagging door is in sliding fit with the outer cams; the extracting solution collecting tray is arranged below the rotary receiving cavities and is provided with a slagging groove and multiple solution receiving grooves in the circumferential direction. The continuous countercurrent extraction device for the traditional Chinese medicine is high in extraction efficiency and the loss of an extracting solution is low.

Description

Technical field [0001] The invention relates to an extraction device, in particular to a continuous countercurrent extraction device for traditional Chinese medicine, and belongs to the technical field of traditional Chinese medicine extraction. Background technique [0002] The extraction of traditional Chinese medicine is an important unit operation in the production process of traditional Chinese medicine. Its technological method, selection of technological process and equipment configuration will directly affect the quality and clinical effect of traditional Chinese medicine. [0003] The traditional centrifugal method, plate and frame filtration method, clarifying agent method, alcohol precipitation method, resin adsorption method and other processes cannot effectively clarify and purify the Chinese medicine extract. At the same time, there are also problems such as difficult filtration and fast clogging, resin plugging, and alcohol. Solvent consumption is large, high energy ...

AI Technical Summary

Problems solved by technology

[0004] 1. There is a heating dead angle, that is because the jacket is heated, so that there will be no heat source at the bottom of the tank, and a heating dead angle will be formed;

[0005] 2. Poor extraction efficiency: due to the lack of heat source at the bottom to form a heating dead angle, the extraction of the medicinal materials at the bottom is incomplete, and the medicinal materials floating on the top (slowly immersed in the extraction solution after extraction and boiling) are not extracted in the same way as othe

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