| 摘要 |
<p>A distillation device that is superior in energy saving and distillation efficiency, comprising an evaporation still having a liquid spraying device, a distillation column, a heat exchanger, a condenser, and a fraction receiver, the distillation device being a semicontinuous batch distillation device. The heat exchanger is disposed between the distillation column and the condenser and adapted to exchange heat with the raw liquid to be fed to the distillation column. The vapor from the distillation kettle passes through the distillation column and liquefied by the heat exchanger and/or said condenser, it being arranged that part of the resulting liquid is recovered by the fraction receiver, the rest of the liquid being refluxed to the distillation column, and that the bottom in the distillation column is returned to the evaporation still.</p> |
