Content-adjustable methylhydrazine synthetic-fluid refining apparatus and method

The invention relates to a content-adjustable methylhydrazine synthetic-fluid refining apparatus and a method. The apparatus comprises an evaporation rectification feeding tank, an evaporation heater, an evaporator, an evaporation rectifying column, a finished-product column, a reboiler and an automatic centrifuge, and is used to refining a methylhydrazine synthetic fluid. The benefits of the apparatus and the method comprises: the technological flow of refining methylhydrazine is improved, production energy consumption is substantially reduced; pollution is reduced; the methylhydrazine content in the refined methylhydrazine synthetic fluid can be adjusted in a larger scope; and the apparatus and the method are applicable to production of multiple methylhydrazine synthetic fluid with different methylhydrazine content, and help to realize continuous production and automatic control.