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1. (WO2017033395) PRODUCTION METHOD FOR SINTERED ORE

Pub. No.:    WO/2017/033395    International Application No.:    PCT/JP2016/003419
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Jul 23 01:59:59 CEST 2016
IPC: C22B 1/20
Applicants: JFE STEEL CORPORATION
JFEスチール株式会社
Inventors: IWAMI, Yuji
岩見 友司
OYAMA, Nobuyuki
大山 伸幸
YAMAMOTO, Tetsuya
山本 哲也
IWASE, Kazumi
岩瀬 一洋
Title: PRODUCTION METHOD FOR SINTERED ORE
Abstract:
According to the present invention, when liquid fuel is supplied to a charge layer to produce sintered ores, combustion efficiency of the liquid fuel is improved and productivity of sintered ores is improved. The charge layer is formed by charging, onto a circulating pallet, a sintering raw material containing an iron ore and charcoal material. The charcoal material in the charge layer is ignited in an ignition furnace and air is sucked from below the pallet, so that a sintered ore is produced. Oxygen-enriched air having an oxygen concentration of 25-31% by volume and the liquid fuel atomized so as to have a droplet diameter of 100 μm or less are supplied from above the charge layer.