Title:
METHOD FOR MANUFACTURING MOLTEN IRON
Document Type and Number:
WIPO Patent Application WO/2010/131740
Kind Code:
A1
Abstract:
Provided is a method for manufacturing molten iron, said method being capable of minimizing the generation of converter dust and increasing the thermal degree of freedom of the converter process. Also provided is a method for improving a converter operation method used in steel manufacturing. The method for manufacturing molten iron includes: a first step wherein carbon-containing molten metal is supplied to a converter furnace; a second step wherein iron oxide is continually inputted into the converter furnace; and a third step wherein a mixed gas comprising a fuel gas and an oxidant gas is blown onto the molten metal at a speed equal to or greater than the speed of sound, thereby causing a combustion reaction, the heat of which heats the molten metal.
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Inventors:
HIRAOKA TERUYOSHI (JP)
Application Number:
PCT/JP2010/058192
Publication Date:
November 18, 2010
Filing Date:
May 14, 2010
Export Citation:
Assignee:
ISTC CO LTD (JP)
HIRAOKA TERUYOSHI (JP)
HIRAOKA TERUYOSHI (JP)
International Classes:
C21C5/28; C21C5/30
Domestic Patent References:
| WO2010032642A1 | 2010-03-25 |
Foreign References:
| JPS62192520A | 1987-08-24 | |||
| JP2003194307A | 2003-07-09 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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Claims: