Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REDUCED IRON PRODUCTION DEVICE, AND REDUCED IRON PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/012003
Kind Code:
A1
Abstract:
Provided are a reduced iron production device (1) and a reduced iron production method with which it is possible to prevent a reduction reaction of an iron oxide by a reducing gas from being suppressed by a carburizing gas when the reducing gas and the carburizing gas are continuously supplied in the production of reduced iron having carbon added thereto. The reduced iron production device (1) reduces an iron oxide by introducing a reducing gas to a raw material containing the iron oxide to produce reduced iron. The reduced iron production device (1) is equipped with a main body (2) and a carburizing gas discharge unit (3). The main body (2) has a carburizing gas guide inlet (9) for guiding a carburizing gas, which contains carbon for carburizing the reduced iron in order to add carbon thereto, into a space (5). The carburizing gas guide inlet (9) is provided below a reducing gas guide inlet (8). The carburizing gas discharge unit (3) has a carburizing gas intake inlet (13) disposed at a height equal to or below the height of the reducing gas guide inlet (8), and discharges gas containing the carburizing gas inside the space (5) through the carburizing gas intake inlet (13) to outside of the space (5).

Inventors:
AKIYAMA, Katsuya
TAKUBO, Yoji
MIZUTANI, Noriaki
MAEDA, Norihide
SHIGETO, Yusuke
Application Number:
JP2016/085187
Publication Date:
January 18, 2018
Filing Date:
November 28, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) (2-4 Wakinohama-Kaigandori 2-chome, Chuo-ku Kobe-sh, Hyogo 85, 〒6518585, JP)
International Classes:
C21B13/02; F27B1/16
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (Osaka Nakanoshima Building 2nd Floor, 2-2 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
Download PDF: