Alcohol recovery device

Abstract

The invention discloses an alcohol recovery device. The alcohol recovery device comprises an evaporation device, a tower section and a cooling device, wherein the evaporation device comprises an evaporating chamber and a heating chamber, the tower section is connected with a stock solution inlet, the stock solution inlet is connected with a stock solution tank, the top end of the tower section is connected with a long pipe, the other end of the long pipe is connected with the cooling device, the cooling device comprises a condenser, a switching tank and a cooler, the condenser is located just above the switching tank and is fixedly connected with the switching tank, an ethanol inlet is formed in the bottom of the switching tank, the other end of the ethanol inlet is connected with a sanitary pump, a three-way valve is connected to an outlet of the sanitary pump, a first end of the three-way valve is connected with a cooler of an ultraviolet-visible spectrophotometer, a second end of the three-way valve is connected with a rotameter and is connected with the top of the tower section through a reflux inlet, and a third end of the three-way valve is connected with the top of the evaporating chamber. By the alcohol recovery device, a recovered product is high in purity and stable and reliable in quality, the ultraviolet absorbance reaches the standards, and the volatilization rate of a diluted alcoholic solution and the utilization ratio of filler are further increased.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to an alcohol recovery device. Background technique [0002] With the rapid development of traditional Chinese medicine in my country, alcohol is used as the main extraction solvent, and the consumption is increasing day by day. Therefore, reclaiming the discarded dilute alcohol and ensuring the quality of the recovered alcohol to make it meet the reuse standard for reuse are the main ways for the majority of traditional Chinese medicine pharmaceutical companies to reduce production costs and improve economic benefits. Its working principle is that the boiling point of alcohol is lower than the boiling point of other solutions. When the boiling point of alcohol is reached, alcohol begins to volatilize in large quantities. At this time, other components such as medicinal liquid have not reached the boiling point and basically do not volatilize. In this way, the alcohol is separated ...

AI Technical Summary

Problems solved by technology

The way we usually use is to send the dilute alcohol stock solution directly into the tower kettle, which makes the dilute alcohol stock solution entering the tower kettle not evenly distributed on the packing. On the one hand, it will affect the recovery rate, and on the other hand, the packing cannot be fully utilized. , causing unnecessary waste, and the service life of the filler will be shortened accordingly, which requires frequent replacement of the filler. On the other hand, it is equivalent to increasing the cost of dilute alcohol stock solution recovery

In addition, the alcohol recovery rate is not high, the energy consumption is large, and the quality of recovered alcohol is not up to standard, especially the problem of unqualified absorbance index.

To recover alcohol, not only the ethanol content and relative density should meet the requirements, but also its absorption should meet the specified indicators, but the current alcohol recovery technology can not meet this indicator

Images