Development of High Ratio Coke Mixed Charging Technique to the Blast Furnace

• Watakabe Shiro

  Steel Research Laboratory, JFE Steel Corporation

• Takeda Kanji

  Steel Research Laboratory, JFE Steel Corporation

• Nishimura Hirobumi

  East Japan Works, JFE Steel Corporation

• Goto Shigeaki

  East Japan Works, JFE Steel Corporation

• Nishimura Nozomu

  East Japan Works, JFE Steel Corporation

• Uchida Tetsuro

  East Japan Works, JFE Steel Corporation

• Kiguchi Mitsuru

  East Japan Works, JFE Steel Corporation

抄録

Technique for high ratio coke mixed charging was developed and applied at JFE Steel's East Japan Works (Chiba District) No. 6 blast furnace as the first case of application to a large blast furnace. Simultaneous discharging of ore and coke from the top bunkers, and the precise control of burden distribution technique with the mathematical model considering the segregation behabior of mixed layer have made it possible. Since April 2002, high productivity operation with the world's lowest level of sinter ratio has been conducted using high ratio coke mixed charging technique.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 46 (4), 513-522, 2006

  一般社団法人 日本鉄鋼協会

キーワード

• high ratio
• coke mixed charging
• blast furnace
• bell-less charging
• simultaneous discharging
• burden distribution
• permeability
• cohesive zone
• coke size
• high productivity
• sinter ratio
• low RAR

詳細情報

• CRID: 1390001206488115968
• NII論文ID: 10017619062
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.46.513
• COI: 1:CAS:528:DC%2BD28XkvFWhsrY%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/46/4/46_4_513/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可