| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily recover a steel material and an Al material of a lid portion individually from compressed steel cans to reutilize them and to make them into recycling resources. SOLUTION: A compressed product of the steel cans charged from a hopper 1 is finely crushed with an impact crusher 2 and each piece is heated with a rotary kiln 3 to burn a coating material, etc. Each piece after the heat treatment is formed into granular pellets with granulaters 4, 5 while being separated into a steel portion and an Al portion, and they are classified into steel pellets and Al pellets with a magnetic separator 6 to house them into each container 9, 11 and besides powdery steel material is separated with a vibration screen 8 to house it into a container 10.</p> |
