FIELD: radio engineering. SUBSTANCE: device has passive nozzle coupled with pipe-lines to sections of bath, float vessel and another vessel through pneumatic distributor which makes it possible to use only one ejector. Inner space of pneumatic distributor is made tight. Pressure control is mounted in pipe-line connecting it with source of compressed air. That is why change of pressure of compressed air supplied to ejector and bath section does not affect and alter pressure in internal groove which renders operation of pneumatic distributor reliable and stable without any additional adjustment. EFFECT: improved reliability and stability of operation of device. 1 dwg
