A device for continuous extraction of a liquid or pasty phase to a final pressure greater than the initial pressure.

摘要

A device for the continuous extraction of a liquid mass from a starting zone 11 to a first pressure p1 to an inlet zone 12 to a second pressure p2 greater than the first pressure, comprising: & br / - a transport pipe (16) in communication with the starting zone and containing an endless screw 17, and a screw compressor having a compression ratio r and comprising a wall 19 mounted downstream of this pipe, and a screw 20 integral with a frustoconical and coaxial with the endless screw, & br / - a pressurization enclosure 22, & br / - an inlet pipe 21 connected to the output of the screw compressor and which, provided with a valve 23 calibrated at a pressure p3, between p1 and r.p1, opens into the enclosure, and & br / - an outlet duct 27 connected to the pressurization enclosure and which, provided with a valve 28, calibrated at a pressure p4, between p2 and r.p1, opens into the inlet zone 12.