Ube Industries, Inc.

Kawasaki Steel Corporation

Shunji Hamada

Sadayuki Saito

Yasumasa Idei

Tadaaki Iwamura

Takao Hamada

Sadahiko Maeda

Ryoji Takabe

Toshihiro Inatani

Mitsuo Sumito

A powder feeder, includes a cylinder body connected to a gas blow pipe for fluidizing a powder at its bottom portion; a porous plate crossing the lower portion of the cylinder body above a gas blow hole; a partition plate which divides the interior of the cylinder body into a powder supply side and a delivery side and has a slit for communicating the supply and delivery sides with each other at its upper portion; a powder supply pipe connected to the lower portion of the cylinder body at the supply side to be inclined downward toward a connecting portion; and a powder delivery pipe connected to the lower portion of the cylinder body at the delivery side to be inclined downward in a delivery direction.

Powder feeder

Disclosed herein is an apparatus for blowing a powdery refining agent into a refining vessel which is adapted to blow the powder into a molten metal bath of the refining vessel together with a refining gas by feeding the powder from a pressure vessel to a main pipe for the supply of the refining gas. The pressure vessel is connected to the main pipe through a plurality of transportation pipes each provided with an on-off valve and connected to a secondary gas pipe for introduction of the refining gas downstream of the on-off valve. The secondary gas pipe is provided with a flow control valve.

Apparatus for blowing powdery refining agent into refining vessel

Growing community of inventors

Chiba, Japan

Shunji Hamada