Title:
SORTING METHOD OF STEEL SLAG, RECYCLING METHOD OF STEEL SLAG, AND PRODUCTION METHOD OF IRONMAKING RAW MATERIAL
Document Type and Number:
Japanese Patent JP2018141196
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a sorting method which can select steel slag into three or more types in a form suitable for reuse while suppressing an increase in magnetic force sorting steps.SOLUTION: The sorting method of steel slag comprises: a crushing step of crushing steel slag to produce crushed slag; a first magnetic force sorting step of sorting the crushed slag into first magnetic substances and first non-magnetic substances; a classification step of sieving the first magnetic substances into coarse grains and fine grains; and a second magnetic force sorting step of sorting the fine grains into second magnetic substances and second non-magnetic substances. The method further includes a drying step of drying at least one of the crushed slag, the first magnetic substances and the fine grains.SELECTED DRAWING: Figure 1
Inventors:
TAKAGI YUKI
ISHIDA TADAHIRA
NIIDOME HIDEMINE
NIHEI MASAMITSU
TANEMURA KAZUTERU
MAEDA TAKAHIKO
ISHIDA TADAHIRA
NIIDOME HIDEMINE
NIHEI MASAMITSU
TANEMURA KAZUTERU
MAEDA TAKAHIKO
Application Number:
JP2017035278A
Publication Date:
September 13, 2018
Filing Date:
February 27, 2017
Export Citation:
Assignee:
JFE STEEL CORP
International Classes:
C21C5/28; B03C1/00; B03C1/10; B03C1/14; B03C1/22; B07B1/00; B07B1/28; B09B3/00; B09B5/00; C21C7/00; F27D15/00
Attorney, Agent or Firm:
Daisuke Ozaki
Akira Kumasaka
Isomura Tetsuro
Tetsuya Sakai
Kazuhiro Mori
Akira Kumasaka
Isomura Tetsuro
Tetsuya Sakai
Kazuhiro Mori