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product description:
The function of the monoethanol falling film evaporator is to
separate the ethanol from the feed liquid and condense and recover
the extract after the decompression vacuum evaporation. In the
condenser, the boiling point of ethanol is lowered and it is easy
to evaporate. Evaporation is easy to carry out, especially under
vacuum and reduced pressure. Therefore, the evaporation area is
reduced, and the condensation and recovery of alcohol vapor is
difficult, so the heat exchange area of the condenser is increased.
In order to obtain a good cooling effect, two-stage or multi-stage
cooling and recovery are often used, which is also different from
general aqueous solution evaporation.
Principle of Falling Film Evaporation:
The material liquid is evenly distributed into each falling film tube through the distributor, and flows down the pipe wall in a liquid film state. Under the action of gravity and secondary steam flow, the material liquid flows down while evaporating, and reaches the falling film. At the lower end of the pipe, the material liquid and the secondary steam are basically separated and reach the separation chamber to achieve complete separation.
Product advantages:
Low evaporation temperature;
Fast evaporation rate;
The material liquid residence time is short;
It can realize continuous feeding and continuous discharging;
Suitable for heat-sensitive materials;
Low energy consumption.
Application scope:
Single-effect falling film evaporators are widely used in food,
dairy, chemical, pharmaceutical, bioengineering, environmental
protection engineering and corn deep processing, such as water
solution, organic solvent solution, fruit and vegetable juice,
milk, eggs, vitamin C, collagen , The evaporation and concentration
of tea infusion, sodium glutamate, etc. is especially suitable for
the evaporation and concentration of heat-sensitive materials. The
beneficial elements of the materials can be protected to the
greatest extent during the heating and evaporation process.