Kawasaki Jukogyo Kabushiki Kaisha

Taiheiyo Cement Corporation

Ryuichi Okamura

Hiroshi Ueda

Fuminori Ando

Kanzaburo Sutoh

Mitsuaki Murata

Seisuke Sawamura

Yoshihiro Mitsuda

Tsutomu Hirobe

A fluidized-bed classifier has a vessel defining a space divided into an upper fluidized-bed chamber and a lower gas chamber by a perforated dispersion plate having the shape of a funnel. Rising currents of a gas, such as air, are blown through the dispersion plate into the upper fluidized-bed chamber to produce a fluidized bed of a particulate material over the dispersion plate. The lower gas chamber is divided into a first gas chamber and a second gas chamber by a partition plate. The gas is supplied into the first air chamber so that rising gas currents of a velocity necessary for fluidizing coarse particles contained in the particulate material fed into the vessel are blown from the first air chamber through the dispersion plate into the fluidized-bed chamber. The gas is supplied into the second air chamber so that rising gas currents of a velocity lower than the velocity of the rising gas currents blown from the first air chamber into the fluidized-bed chamber are blown into the fluidized-bed chamber so that coarse particles contained in the particulate material are not fluidized and does not flow together with fine particles into a fine particle discharge chute.

Fluidized-bed classifier

Growing community of inventors

Kobe, Japan

Ryuichi Okamura