| 摘要 |
Particles P within a processing vessel 1 wherein unprocessed particles P0 and processed particles P1 are mixed are sucked in by a suction nozzle 6 and are sent to a classification mechanism 7b from a cyclone mechanism 7a of a sorting unit 7. Particles P, which are sent to the classification mechanism 7b, are sorted into unprocessed particles P0 and processed particles P1 in a classification airflow A2 that is blown upward, and the processed particles P1 drop down against the classification airflow A2 by their own weight and are discharged in a discharge unit 10. The unprocessed particles P0 ride the classification airflow A2 and are blown upward, returning to the cyclone mechanism 7a, and are transferred to a discharge nozzle 8 by the classification airflow A2 or a mixed airflow of the classification airflow A2 and suction airflow from the suction nozzle 6 along with unprocessed particles P0 that have not dropped in the cyclone mechanism 7a, if any. The unprocessed particles P0 transferred to the discharge nozzle 8 move to a discharge section 8a by the airflow of the classification airflow A2 flowing within the discharge nozzle 8, and are blown against an inside wall surface 1a of the processing vessel 1 with the airflow from the discharge section 8a. |
