Agency of Industrial Science and Technology

Satoshi Arai

Kazuo Kobayashi

Hiroki Yotsumoto

Hiroshi Sakamoto

Minoru Shiraishi

Shiroh Ohmori

Eisetsu Oi

Shinichi Ito

Tetsuhiko Hasuda

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.

Method and apparatus for sorting solids by airstream

Disclosed are graphitized hollow spheres and a method for the manufacture thereof which comprises coating a spherical core of foamed polystyrene with carbonaceous powder and a binder, heating the coated core under controlled conditions to decompose the spherical core of foamed polystyrene, and further heating the resultant carbonaceous body at a high temperature.

Method for manufacture of graphitized hollow spheres and hollow spheres

Growing community of inventors

Tsukuba, Japan

Satoshi Arai