PROCEDIMENTO E DISPOSITIVO PER LA PULTITURA E DEPOLVERAZIONE DELLE SABBIE DI RICURERO PER FONDERIA E DI SIMILI MATERIALI GRANULOSI

摘要

A process and apparatus are provided for mechanically and pneumatically cleaning and stripping particulate granular and/or pulverulent solid materials which are particularly applicable to the regeneration of old foundry sand agglomerated by a binder. The particulate materials are introduced into and projected by a current of gas against the interior sides of a rotating drum where the materials are repeatedly subjected to a shock treatment.