Impurity removal system for extracting medicinal tannin medicine by galla chinensis

Abstract

The invention relates to an impurity removal system for extracting medicinal tannin by galla chinensis. The impurity removal system comprises a soaking tank (1) and a low-temperature cooling tank (9)which are connected by a liquid delivery pipe (5), wherein a horizontal material plate (2) is arranged in the soaking tank, the horizontal material plate (2) is made of a stainless steel mesh and is used for holding a galla chinensis material (7); distilled water (8) is loaded into the soaking tank, a circulating water pipe (3) is arranged at the exterior of the soaking tank, the upper end and lower end of the circulating water pipe (3) are respectively connected into the upper part and lower part of the material plate in a tank body of the soaking tank, a circulating pump (4) is used for continuously and cyclically pumping the distilled water at the lower part of the tank body into the tank body to perform circulating flushing type soaking on the galla chinensis material, and the liquid delivery pipe (5) and a liquid suction pump (6) thereof are arranged at the bottom part of the tank body; a cooling coiled pipe (10) is arranged in the low-temperature cooling tank, a supernatant drainage pipe (12) and an impurity discharge pipe (13) are arranged at the bottom part of the low-temperature cooling tank and are led to the exterior, wherein the supernatant drainage pipe extends up witha certain height in the tank body, and is at least 10 cm higher than the bottom part of the tank body, and an inlet of the impurity discharge pipe is positioned at the bottom part of the tank body. The impurity removal system has the advantages that the impurity removal effect is good, the operation is simple, convenient and rapid, and the safety and reliability are realized.

Description

technical field [0001] The invention belongs to the technical field of medical tannic acid preparation devices. Background technique [0002] Galla is a kind of sac-shaped polymorphic insect produced by stabbing the young leaves or petioles of the Aphidaceae plant "Saltia" and other plants of the same genus by the females of the horned aphid or the egg aphid of the family Aphididae of the order Homoptera. Gall, obtained after roasting and drying. Galla is a medicinal material that can treat many diseases. Medicinal tannic acid exists in the bark and fruit of various trees (such as oak and sumac), and the content of medicinal tannic acid in the galls generated by these trees attacked by insects reaches 50% to 70%. Gallnut can be made into industrial tannic acid after leaching and concentration, and then can be refined to obtain medical tannic acid. [0003] In the prior art, the method for extracting medicinal tannic acid from Galla galla is to crush Galla galla, remove im...

AI Technical Summary

Problems solved by technology

This traditional method of using resin to adsorb impurities relies on the resin being adsorbed through the inner surface. The resin has a certain purification effect on the tannic acid in gallnut, but the efficiency is average. After the resin is used, it contains a lot of impurities. It needs to be eluted and removed before it can be reused, or even replaced, and the process of eluted and removed is very troublesome

The high price of resin leads to high production cost

But the choice of adsorbent is particularly important, effective adsorption target is not easy to find, and not easy to elute

In addition, gallnuts after absorbing impurities need to be washed and washed with a blend of water and alcohol, which is not only troublesome, but also in the process of using alcohol, in the hot summer climate, the mixture of alcohol vapor and air is likely to cause explosion, and there is a large security risks

So far, there has been no more ideal impurity removal equipment in the production of medicinal tannic acid extracted from gallnuts

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