Nippon Steel Corporation

Nippon Steel Sumitomo Metal Corporation

Akira Gushima

Tsuneo Ikeda

Takeshi Imai

Kenichi Yakashiro

Tadahiro Inazumi

Masami Fujimoto

Nobuo Kusakabe

Kenro Nozaki

Eiichi Shimozawa

Fumihiro Sato

Yosinobu Suemura

Kunihiro Imada

Masatoshi Arichi

Yasuhiko Awa

Mitsunori Tanaka

Katsuhiko Satoh

Yoshinori Umezu

A method for pretreating a sintering material using as a material at least two types of iron ore containing coarse grains and fine powder, using a first granulator to make the fine powder stick to coarse grains forming core grains so as to produce S-type granules, and using a second granulator to granulate only fine powder or mainly fine powder to produce P-type granules, which method producing the S-type granules by adjusting an amount of fine powder supplied into said first granulator so that the average stuck thickness of fine powder to the core grains becomes 50 to 300 &#x3bc;m and supplying the remaining fine powder not supplied to said first granulator to the second granulator.

Method for pretreating sintering material

In an apparatus for feeding a sintering raw mix, a plurality of bars downwardly sloped in a falling direction of the sintering raw mix onto a pallet of a sintering apparatus is provided so that the falling direction of the raw mix is opposite to the advancing direction of the pallet, a screen is formed by rotatably supporting the bars, and the upper ends of the bars are connected to a rotating drive(s).

Apparatus and method for feeding sintering raw mix

Growing community of inventors

Kitakyushu, Japan

Akira Gushima