Jfe Steel Corporation

Kawasaki Steel Corporation

Tetsuya Kikui

Yoshitaka Sawa

Tetsuya Yamamoto

Kanji Takeda

Natsuo Ishiwata

Tatsuya Ozawa

A method for discharging a reduced product produced on a movable hearth of a movable-hearth furnace uses a discharging device. The discharging device includes a removal unit for removing the reduced product from the movable hearth, a separation unit for separating the reduced product from a solid reductant, a leaving-returning unit for either leaving substances other than the reduced product on a solid reductant layer or returning the substances onto the solid reductant layer, and a discharge unit for discharging the reduced product to the outside of the movable-hearth furnace.

Method for discharging reduced product from a movable-hearth furnace and a discharging device

Traveling hearth furnace and an operating method thereof, which, when stacking a layer consisting of a mixture of oxides such as fine iron ore and a fine solid reducing material onto a horizontally traveling hearth and reducing the oxides through radiant heat transfer from above the hearth, is based on melting the reduction product in the course of up to a discharge port, and causing aggregation and separation of slag in from the reduction product, followed by solidifying the reducible material.

Rotary hearth furnace for reducing oxides, and method of operating the furnace

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Chiba, Japan

Tetsuya Kikui