The external circulating single-function evaporator is made up of heater, evaporator, separator, and so on, of which parts contacting with materials shall be made of stainless steel. The equipment applies for evaporation and condensation of liquid materials in the industries such as pharmacy, foodstuff, chemical, lightindustry and so on. The equipment has the characteristics of short time for condensation, fast evaporation and preventing the thermal sensitive materials from been damaged preferably.
There are three kinds of types for the series single-function evaporator:
·Conventional type WZY, applies for water solution evaporation.
·Alcohol recycling type WZYH, applies for alcohol solution evaporation, which has bigger condensing and cooling area to make sure alcohol recycling. The recycling concentration can reach as much as 70～85º, attrition rate of alcohol is less than 5%, and temperature after alcohol recycling is not more than 40℃.
·WZYS paste obtained type, applies for single-function evaporation and obtaining the condensate paste. After normal evaporating of single-function, shut down the valves of circulation tube and the one of connecting nozzle between heating and evaporating chamber, in order to make feed liquid enter into the evaporating chamber on the whole and heat by the sheaf in the evaporating chamber directly, then condense with decompression in the normal pressure mode, for the purpose of enhancing the concentration rate of material up to the range 1.35-1.45.