Entrainment flow control type supercritical extraction pharmaceutical equipment

Abstract

The invention discloses entrainment flow control type supercritical extraction pharmaceutical equipment, belongs to the technical field of pharmacy, and can realize innovative introduction of self-changing material throwing balls to distribute powdery materials, and then an entrainer is split into smaller liquid drops by virtue of mutual impact and fusion of the entrainer, the entrainer can be sufficiently mixed with supercritical carbon dioxide fluid, the effect is more sufficient and effective when the entrainer is in contact with materials, and jacking force on the self-changing material throwing ball is formed after the entrainer is mixed with the supercritical carbon dioxide fluid to force the self-changing material throwing ball to ascend by a small distance; under the inertia effect, the powdery material continues to ascend and is suspended for a certain period of time under the buoyancy effect, at the moment, a material conveying self-shaking rod arranged on the self-changing material throwing ball pushes and separates the powdery material while conveying the mixed fluid, further diffusion of the powdery material is promoted, and therefore the powdery material makes more sufficient contact with the mixed fluid to achieve efficient extraction; and the extraction efficiency and effect of the traditional Chinese medicine materials are greatly improved.

Description

technical field [0001] The invention relates to the technical field of pharmacy, in particular to an entrainment-controlled flow-controlled supercritical extraction pharmacy equipment. Background technique [0002] Supercritical is a supercritical fluid, which is a state of matter that is neither gaseous nor liquid between gas and liquid. This substance can only exist when its temperature and pressure exceed the critical point. The density of supercritical fluid is relatively high. Large, similar to liquid, and its viscosity is closer to gas, so supercritical fluid is a very ideal extraction agent. In the process of pharmaceuticals, supercritical extraction equipment is generally used to extract the effective substances of Chinese herbal medicine. The principle of supercritical carbon dioxide fluid extraction and separation process is to use the relationship between the dissolving ability of supercritical fluid and its density, that is, to use the influence of pressure and t...

AI Technical Summary

Problems solved by technology

[0005] The extraction rate of existing supercritical extraction devices generally depends on the extraction effect of the extraction tank and the separation effect of the separator. Due to the characteristics of supercritical fluid, it is easy to achieve a high separation rate from the operation of changing temperature and pressure, even Multi-stage separation and rectification are used to improve the separation effect, but most of the extraction kettles still use simple hanging baskets to hold the materials for static extraction. Due to the accumulation and limited space of the materials, it is difficult to carry out the separation process with the supercritical fluid. Sufficient contact leads to a low single-pass extraction rate. It is often necessary to use repeated extraction or continuous countercurrent extraction to increase the extraction rate of the material. The entrainer is simply mixed with the material or carbon dioxide, resulting in poor effect and greatly The extraction efficiency is reduced, and the extraction cost also increases

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