Device for continuous polycondensation

Abstract

Abstract THE INVENTION PROVIDES A DEVICE FOR THE CONTINUOUS POLYCONDENSATION OF MELTS COMPRISING A HEATABLE, VACCUMTIGHT, CYLINDRICAL OR CONICAL, HORIZONTAL OR ALMOST HORIZONTAL REACTOR WITHINLET AT ONE END AND OUTLET AT THE OTHER END FOR THE MELT AND OUTLET FOR THE VAPOUR AND INSIDE OF THE REACTOR A STIRRER THE SHAPE OF WHICH IS ADAPTED TO THE SHAPE OF THE REACTOR AND THE CONTINUOUS OR DISCONTINUOUS AXIS OF ROTATION OF WHICH IS CONGRUENT WITH THE AXIS OF THE REACTOR. THE STIRRER IS SUBDIVIDED BY PLURALITY OF DISKS IN VERTICAL POSITION WITH RESPECT TO ITS AXIS WHICH DISKS ARE PROVIDED WITH PERFORATIONS STAGGERED FROM DISK TO DISK. PARALLEL TO THE AXIS OF THE STIRRER A PLURALITY OF PERIPHERALLY ARRANGED GROOVE- OR RIBBON-SHAPED DRAG ELEMENTS ARE PROVIDED WHICH ARE PARALLEL TO THE AXIS OF THE STIRRER AND ROD-SHAPED ELEMENTS ARE FIXED OUTSIDE OF THE RANGE OF IMMERSION OF THE STIRRER IN THE MELT, WHICH ELEMENTS PREFERABLY DEPART FORM THE TWO OUTER DISKS. WHEN THE STIRRER ROTATES THE DRAG ELEMENTS CONTINUOUSLY CONVEY THE MELT FROM THE BOTTOM OF THE REACTOR ON TO THE RODSHAPED ELEMENTS INSIDE OF THE STIRRER WHERE IT IS UNIFORMLY DISTRIBUTED IN A THIN LAYER AND FROM WH ERE IT RETURNS INTO THE SUMP OF THE REACTOR.

Inventors

• 👤 Gunter Schnock
• 👤 Peter Schweizer

Bibliographic Details