To provide an empty can treatment system for improving the purity of an aluminum chip product which is yielded from an empty can through crushing and classification treatment.
A raw chip BM is introduced into a carbonization apparatus 200, and a mixture of an aluminum chip and a steel chip, carbonized by the carbonization apparatus 200, with carbonized wastes and a foreign material, is discharged as a carbonized raw chip CM into a vessel 220. The carbonized raw chip CM is conveyed by a screw conveyor 224 from the vessel 220 to a crushed empty-can classification apparatus 10 positioned above. The crushed empty-can classification apparatus 10 has a magnetic separation part 12 for separating the carbonized raw chip CM into a magnetic carbonized chip CS and a nonmagnetic carbonized chip CK and a first and a second aluminum chip separation part 14, 16 for screening and sorting a carbonized aluminum chip CA from the nonmagnetic carbonized chip CK classified by the magnetic separation part 12.
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