Mitsubishi Heavy Industries Limited

Hisao Teramoto

Susumu Kamikawa

Shigeo Itano

Hironori Fujioka

Hideaki Mizuki

Koichi Hirata

Takashi Yamane

Shigeki Sueda

Tetsumasa Kawamoto

A method of producing reduced iron pellets including reducing raw material pellets to obtain reduced iron pellets, and rolling the reduced iron pellets at a temperature ranging between 800 and 1200&#xb0; C. sufficiently such that the reduced iron pellets undergo sintering.

Method of producing reduced iron and production facilities therefor

A method of producing raw material pellets, including forming pellets from a mixture of an iron oxide powder, a coal powder and a binder material after adding adjusting water to the mixture, and drying the pellets, wherein the binder material comprises at least one of tar and at least one of carboxymethylcellulose and polyvinylalcohol.

A steel production method including preparing reduced iron pellets, taking a first portion of the reduced iron pellets and charging the first portion of the reduced iron pellets in a submerged electrical arc furnace such that a sufficient amount of hot metal is produced to efficiently melt and charge a second portion of the reduced iron pellets in an electrical arc furnace, and melting and charging the second portion of reduced iron pellets in the electrical arc furnace, thereby producing steel, wherein the first and second portions of the reduced iron pellets have a ratio between 30 to 70 wt. %.

Steel production method

Growing community of inventors

Hiroshima, Japan

Hisao Teramoto