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Chinese medicine extracting and concentrating process and device thereof

A technology of traditional Chinese medicine and technology, which is applied in the field of extraction and concentration of raw materials of traditional Chinese medicinal materials, and can solve the problems of unsuitable high temperature concentration for a long time.

Inactive Publication Date: 2003-09-03
章方龙
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Problems solved by technology

At present, domestic extraction and concentration units all use similar processes. The entire process of this process is under normal pressure, and its evaporation temperature is its boiling point, so it is fashionable to use alcohol for extraction, but in dynamic water extraction, the evaporation temperature of the evaporator At 100-103°C, most traditional Chinese medicines are heat-sensitive materials, which are not suitable for long-term high-temperature concentration, so this process cannot meet the requirements of water extraction.

Method used

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  • Chinese medicine extracting and concentrating process and device thereof
  • Chinese medicine extracting and concentrating process and device thereof
  • Chinese medicine extracting and concentrating process and device thereof

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Embodiment Construction

[0008] Accompanying drawing has shown the embodiment of equipment and technical process of the present invention, further describe its whole process in detail in conjunction with equipment accompanying drawing again below, the whole process of its embodiment is: close extraction tank 4 slag door, drop into Chinese medicine and close feeding port, Open the vent valve, slowly add water, the ratio of water to traditional Chinese medicine is generally 4-6:1, open the steam inlet valve of the heater 12 in the extraction tank, feed steam, open the discharge valve C1 of the extraction tank 4, start The circulating pump 2 makes the water flow back to the extraction tank after passing through the filter 3 and the external heater 1, and then opens the steam valve of the external heater to heat the water. At this time, the extraction tank 4 enters the heating stage. When the set temperature is 97±2°C, close the steam valve of the external heater, close the discharge valve C1, keep it warm...

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Abstract

An extracting and concentrating process for Chinese medicine includes such steps as loading raw Chinese-medicinal materials in extractor adding solvent, steam heating to obtain liquid, boiling evaporating in vacuum state, condensing the secondary vapour to obtain liquid, switching it to the liquid distributor of extractor, spraying it on the surface of Chinese-medicinal materials, and repeating said steps for extracting while concentrating. Its apparatus is composed of extractor, condenser, vacuum switching device, heater and evaporator. Its advantages are simple and compact structure, simple process, high extraction rate, less loss and low secondary pollution.

Description

technical field [0001] The invention relates to a process and equipment for extracting and concentrating raw materials of Chinese medicinal materials. Background technique [0002] With the wide application of dynamic extraction technology of traditional Chinese medicine, dynamic extraction-concentration unit equipment is also popularized accordingly. Check the Chinese ZL96118248.2 patent, which describes a heat reflux extraction and concentration process, which is characterized in that the process flow is: a. Extraction: put Chinese medicinal materials or food and other raw materials into the extraction tank, add water or organic solvents and use The steam is heated, and after boiling, the dilute drug solution is continuously pumped into the heater and evaporator through the suction filter tube. b. Concentration: After the liquid medicine enters the heater, close the steam valve of the extraction tank, open the steam valve of the heater, the heater is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J3/00B01D5/00
Inventor 李中平
Owner 章方龙
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