Proportional concentration evaporation device

Abstract

The invention discloses a proportional concentration and evaporation device. The device comprises a rotor flow meter and a membrane lifting type long tube evaporator, wherein a magnetic body is arranged on a rotor guide rod, a magnetic displacement sensor is connected with a signal output terminal, the signal output terminal is connected with a servo control steam valve, and a steam pipe enters the membrane lifting type long tube evaporator through the servo control steam valve; an inlet of the rotor flow meter is connected with a to-be-concentrated / evaporated solution inlet pipe, an outlet of the rotor flow meter is connected with the membrane lifting type long tube evaporator, and the membrane lifting type long tube evaporator is connected with a cyclone separator; the lower end of the cyclone separator is connected with a concentrated liquid storage tank while the upper end of the cyclone separator is connected with the evaporated condensed liquid storage tank through a shell side of a shell-and-tube heat exchanger; the shell side of the shell-and-tube heat exchanger is connected with a cooling water inlet and a cooling water outlet. According to the invention, the opening degree of the steam valve is automatically controlled according to the size of feeding, a to-be-concentrated / evaporated solution can be vaporized in a certain ratio, and the device has the characteristics of simple structure, complete functions, high degree of automation and high practicability.

Description

technical field [0001] The invention relates to a device for condensing and evaporating a solution according to a certain ratio, and separating the gas-liquid phase after condensing and evaporating. Background technique [0002] Eucommia gum exists in Eucommia leaves, bark and fruit. Eucommia gum and natural rubber have the same chemical composition, but different molecular structures. Eucommia gum is trans-polyisoprene, while natural rubber is cis-polyisoprene. Due to the different vulcanization methods of the same Eucommia gum molecule, it can be in rubber state or different plastic state, so Eucommia gum has very important application value and is a new functional material with multiple uses. [0003] Eucommia gum is easily soluble in non-polar solvents such as petroleum ether. After extraction with non-polar solvents such as petroleum ether, the crystals of Eucommia gum can be separated by cooling and freezing. It is found in the research that the solvent after freezing...

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Problems solved by technology

[0004] In order to realize the continuous operation of the above-mentioned operations and the low-energy circulation of the solvent, the key is to concentrate and evaporate the extract of Eucommia gum in a certain proportion, and to separate the gas-liquid phase after concentration and evaporation. Due to the mature experience and technology, the existing evaporation and concentration devices cannot meet the needs of the eucommia gum solution to be evaporated and concentrated in proportion and the gas-liquid phase separation after concentration and evaporation, so the existing technology cannot meet the requirements of the industrial operation of eucommia gum

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