an airstream solid sorting technology easily and efficiently sorts electric wire and other slender objects from other unslender objects in crushed bulk wastes . a mixture of slender and unslender objects is supplied into an airstream sorting vessel , in which a turbulent stream of gas supplied from below through a meshed screen tilted in its bottom agitates the mixture . slender objects stalling and falling longitudinally in the direction in which gravity works pass through the meshed screen , thus falling into a slender objects collecting vessel placed below the meshed screen . unslender objects sliding down along the tilted meshed screen are thus separated .