EVAPORATION PROMOTING METHOD AND SLUMP VALUE ADJUSTING METHOD

摘要

PURPOSE:To facilitate the adjustment of a slump value, by allowing an air stream to act on the liquid in a hermetically closed container to promote evaporation. CONSTITUTION:Seawater 5 is introduced into a hermetically closed container 1 from a liquid inlet pipe 4 and a valve 6 is closed while a compressor 7 is operated to blow air in seawater 5 as air bubbles through a pressure air feed pipe 2 and air containing steam is passed through an air exhaust pipe 3 to be introduced into a gas-liquid separator 8 where steam is separated by a filter 8a passing air but not passing steam and condensed under cooling to be collected by a collection box 9. The concentrate is discharged from a discharge pipe 11 and boiled down to obtain salt.