ABSTRACT
Multistage whirlwind apparatuses (WA) with the general counterflow motion of co-operating streams on a build are analogous to columns of bubbling type but has also some differences causing them of advantage (Frolov, 1987; Nikolaev, 1907; and Nikolaev, 1971). The first difference consists that on plates one or several rotary connections (RC) with directflow interacting of phases become stronger. Gas (steam) with a great speed is included into a RC, picks up a liquid arriving through special channels, and involves it in joint unidirectional, direct-flow motion. On an exit from the rotary connection, the stream of steam (gas) separates from a liquid[1-10].
