Single Effect Vacuum Evaporation External Circulation Evaporator

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Single Effect Vacuum Evaporation External Circulation Evaporatoro

Introduction

The external circulation evaporator is a natural circulation evaporation concentrating device, which is widely applied to the concentration process of traditional Chinese medicine liquid, syrup, juice, fruit pulp, dairy and other materials and industrial organic solvent (such as alcohol), suitable for small batch size, Low temperature vacuum concentration of a variety of heat sensitive materials. According to the characteristics of the material and the amount of evaporation, it can be designed as a single-effect or multi-effect evaporation unit.

Application

In the following area: medicine,glucose,starch sugar,dairy food etc.and many low temperature evaporation heat sensitive material ,also industry organic solvent recycle(alcohol). Suitable for concentration of solutions with less fouling and less corrosive.

Features

● The equipment investment cost is low, and the production and operation cost is also low.
● Simple operation and small footprint. There are not many requirements for the height and layout of the user's plant
● The disadvantage is that the slow cycle of the solution is not suitable for materials with large viscosity and large amount of crystallization.

Working Principle

The raw steam of the boiler enters the shell side of the heating chamber. After the liquid in the column is heated, the liquid level rises, and the liquid is sprayed from the nozzle into the evaporation chamber for vapor-liquid separation. The liquid is returned from the circulation pipe to the lower part of the heating chamber and heated, and the liquid is heated. It is sprayed into the evaporation chamber to form a circulation. The liquid is concentrated to a certain extent, and is discharged from the discharge port after being determined by sampling. The secondary steam evaporated from the evaporation chamber is eliminated by the defoamer and then passed through the vapor-liquid separator. Some of the liquid is returned to the evaporation chamber, and the remaining secondary steam is cooled by the condenser and the cooler to form a liquid, and then enters the liquid receiving tank. The condensed gas is extracted by a vacuum pump.

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