Title:
製鋼ダストのリサイクル方法
Document Type and Number:
Japanese Patent JP5090655
Kind Code:
B2
Abstract:
A method for recycling steelmaking dusts has a granulating step of mixing steelmaking dusts, containing as a principal component iron and oxides thereof produced during the steelmaking in a melting furnace, with a powder containing carbon as a principal component and granulating the resultant mixture to provide mixed granules, a water impregnating step of immersing the mixed granules in a water to allow them to be impregnated with the water, a solidifying step of molding the water impregnated, mixed granules under pressure within a mold assembly to provide a solid body of the steelmaking dusts, a step of transporting the solid body of the steelmaking dusts as a raw material to be charged into the melting furnace, an enhancing step of increasing the concentration of zinc in the dusts, and a dezincing step of dezincing the dusts during a period from acquisition of the steelmaking dusts out of the melting furnace to the solidifying step.
Inventors:
Shozo Goto
Muramatsu victory
Norio Misaki
Muramatsu victory
Norio Misaki
Application Number:
JP2006096260A
Publication Date:
December 05, 2012
Filing Date:
March 31, 2006
Export Citation:
Assignee:
ntn corporation
jfe bar steel corporation
jfe bar steel corporation
International Classes:
C22B1/248; C22B7/02; C22B19/30; C21C5/52
Domestic Patent References:
| JP6145830A | ||||
| JP2003183716A |
Foreign References:
| WO2002036836A1 |
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto
Shuji Sugimoto