還元鉄粉及び焼成副原料を高温塊状化する溶融鉄製造装置及びその溶融鉄製造方法

Japanese Patent JP4202326

B2

The present invention relates to an apparatus for manufacturing molten iron. The present invention provides an apparatus for manufacturing molten iron including a charge container receiving the supply of reducing material in which hot fine direct reduced iron from multiple fluidized-bed reactors are mixed; at least one pair of roller presses to which the fine direct reduced iron is supplied to undergo roll pressing, thereby producing continuous compacted material having lumped portions adjacent to each other; a crusher crushing the compacted material produced by the roller presses; and a melter-gasifier to which is charged crushed compacted material that is crushed by the crusher. Each of the pair of roller presses include pressed portions and protruded lines formed between the pressed portions. The pressed portions include first and second pressed portions opposing each other and first and second concave surfaces continuously formed on the first and second pressed portions along an axial direction of the at least one pair of roller presses, respectively. When viewed from a direction perpendicular to a plane centered between the first and the second pressed portions: (i) the first and second concave surfaces partially overlap each other, and (ii) the protruded lines are unaligned on the opposing first and second pressed portions.

Lee, Fu-Gun
Shin, Song-Gi
Can, tain
Kim, Duk-che
Kang, Chang-o
Lee, Gwang-hee
Ju, Sun-Hoon
Kim sung-gon

JP2004562094A

December 24, 2008

December 19, 2003

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POSCO

C21B13/14; C22B1/16; C21B13/00; C21B13/02; C22B1/24; C22B1/248; C22B5/14; F27B3/18; F27B15/00; F27B19/04; F27D3/00; F27D3/10; C22B5/10

JP6200310A

US4076520
DE10156735A1

Hiroshi Arafune
Yoshio Arafune

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