Traditional Chinese medicine thermal reflux extraction, concentration machine set

Abstract

The invention discloses a traditional Chinese medicine heat reflux extraction and concentration unit, which belongs to the field of pharmaceutical machinery. The unit is characterized in that a vacuum tank (14) is provided at the end of a heat reflux condenser (1), and a vacuum pump is connected to the vacuum tank. The vacuum tank is communicated with the vacuum switch (4), and there is a height difference between the vacuum tank and the extraction tank that can overcome the vacuum difference suction between the vacuum tank and the extraction tank, and the height difference is at least 2.5 meters. When the vacuum pump is working, all the pipelines on the unit are connected. In the unit of the present invention, when the vacuum pump is turned on, the whole unit is operated in a vacuum state, and the generated secondary steam is cooled by a heat reflux condenser and then returned to the extraction tank as a solvent supplement, and the temperature of the extraction tank is controlled at a low temperature state, so that The solvent repeatedly moves on the surface of the medicinal material and penetrates into the inner part of the medicinal material, improving the frictional eluting force and solubility of the solvent on the medicinal material, increasing the concentration difference and expansion ability of soluble substances and solvents in the medicinal material, and improving the ointment rate of the traditional Chinese medicinal material, ensuring The active ingredients of medicinal materials are not lost by evaporation.

Description

【Technical field】 [0001] The invention relates to a pharmaceutical machine, in particular to a traditional Chinese medicine thermal reflux extraction and concentration unit. 【Background technique】 [0002] At present, domestic pharmaceutical machinery factories generally manufacture traditional Chinese medicine extraction and concentration units. The structure and characteristics of these units are only suitable for the water-alcohol extraction process in practice. The so-called water-alcohol extraction is only in terms of form. In terms of extraction and concentration time and specific gravity, the advanced nature of this unit is not outstanding. At the same time, this unit extracts and concentrates Chinese herbal medicines at high temperatures. The loss of active ingredients of medicines after high-temperature extraction and concentration is very serious. Therapeutic effect of Chinese patent medicine; because it runs for a long time in the whole heat reflux extraction and ...

AI Technical Summary

Problems solved by technology

[0004] In the present invention, a vacuum tank is arranged at the end of the heat reflux condenser and a vacuum pump is connected to the vacuum tank, so that there is a height difference between the vacuum tank and the extraction tank that can overcome the vacuum difference suction between the vacuum tank and the extraction tank, and all the components on the unit The pipeline is fully closed and connected, so that the whole unit can be operated in a fully closed continuous cycle under vacuum. It only needs to feed materials and add solvent once. The unit has been tested during operation, and the dosage of different raw materials can be increased by 30 to 50. % or more, the amount of solvent can be reduced by 30-50%, the drug recovery rate can be increased by more than 10%, and the production time can be shortened by more than one-third. The temperature inside the device can be controlled at 60-70°C in the case of water extraction, and 55-60°C in the case of alcohol extraction. Since the whole machine operates in a vacuum state, it can be extracted at a low temperature , so that the solvent repeatedly moves on the surface of the medicinal material and penetrates into the medicinal material, improves the elution force and solubility of the solvent on the medicinal material, increases the concentration difference between the soluble substance and the solvent in the medicinal material and the expansion ability, and improves the ointment rate of the Chinese medicinal material, ensuring The active ingredients of the medicine are not lost by evaporation, which provides reliable equipment for the large-scale production of water extraction and alcohol extraction of Chinese herbal medicines

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