Concentrated machine for distilling Chinese herbal medicine

Abstract

The invention discloses a reverse double reflux extracting and concentrating machine, which makes extraction, concentration and ointment collection cyclically carried out at the same time, and can also recover aromatic oil and alcohol. It is equipped with a motor-driven spiral blade stirring shaft in the extraction tank. The liquid connecting pipe connects the bottom of the extraction tank with the bottom of the concentration system, and the steam connecting pipe on the top of the extraction tank and the top of the evaporator is connected to another steam condenser, a coil cooler, and an oil-water separator. Pipeline, under the head of the extraction tank, there is a condensate summarization spray pipe, there are two sets of concentration systems, a drainage condenser, a secondary steam condenser, a coil cooler, and an oil-water separator, which are paired with the two On the other hand, one-way concentration is added to symmetrical two-way concentration, which has high drug improvement rate, short concentration time, low energy consumption, less space occupation, and light investment.

Description

Technical field [0001] The invention relates to a device for extracting and concentrating traditional Chinese medicine. Background technique [0002] In my country, before 1998, the equipment used for extracting and concentrating traditional Chinese medicines was independent and worked separately. The extraction equipment was an extraction tank, and the concentrating equipment was a concentrator. Generally, after the medicinal materials are loaded into the extraction tank, about 16 times of solvent should be added in 2-3 times, decocted for 6-7 hours, 6M 3 If the extraction tank is calculated on the basis of 600kg of medicinal materials, it will extract nearly 10 tons of dilute medicinal liquid, and two 5-ton storage tanks are needed to solve the storage problem. Many supporting storage tanks are required to connect pipelines, valves, delivery pumps, etc., which requires a large investment and occupies a large area of ​​equipment. Because the drug extraction tank is statica...

AI Technical Summary

Problems solved by technology

However, in the extraction process of this utility model, the drug material is still, and the evaporation is heated from the outer interlayer sleeve of the extraction tank, the temperature in the tank is uneven, and the material in the middle is not completely extracted from the surrounding area. When concentrated, the secondary steam rises and directly enters the extraction tank. , relying on the vertical reflux condenser on the upper part of the extraction tank for heat exchange, only a small part of the condensed water seeps into the drug feed liquid, so the effective gradient cannot be maintained in the extraction tank; extraction and concentration are performed in a large cycle, that is, one-way concentration and ointment collection In addition, most Chinese medicinal materials contain aromatic oil components with high economic value. It is not beneficial, and it will also affect spray drying; when extracting medicinal materials with alcohol, the extracted alcohol and medicinal liquid mixture must be input into a special equipment alcohol tower for recovery

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