To provide an electric discharge electrostatic sorting device in which the recovery ratio of insulative crushed dust is improved.
This sorting device is provided with a grounded first metallic- drum electrode 15 in which the crushed dust 11 to be sorted is scattered on the upper face, a high-voltage acicular discharge electrode 16, a grounded electrode 19 consisting of a metallic drum rotating around the horizontal axis and in which the crushed dust 11 to be sorted is supplied from the first metallic-drum electrode 15 to the inside, a scraping mechanism 27 for scraping the crushed dust 11 to be sorted supplied to the inside of the grounded electrode 19, a second brush 24 for scraping off the crushed dust 11 to be sorted adsorbing into the grounded electrode 19 and a carry-out conveyor 25 for recovering the crushed dust 11 to be sorted scraped off by the second brush 24. By such a constitution, since the crushed dust 11 to be sorted supplied to the inside of the grounded electrode 11 is scraped up by the scraping mechanism 27, turned and moved, the opportunities to absorb the insulative crushed dust on the grounded electrode 19 are increased and the recovery ratio of the insulative crushed refuse is improved.
Sekiguchi, Yoshitoshi
Yamamoto, Katsuhiko
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