Indicators of the Internal State of the Blast Furnace Hearth.

• Torrkulla Jan

  Heat Engineering Laboratory, Åbo Akademi University

• Brännbacka Johnny

  Heat Engineering Laboratory, Åbo Akademi University

• Saxén Henrik

  Heat Engineering Laboratory, Åbo Akademi University

• Waller Matias

  Heat Engineering Laboratory, Åbo Akademi University

抄録

The hearth is a crucial region of the blast furnace, since the life of its refractory may be decisive for the campaign length of the furnace. Excessive growth of skull on the hearth wall and bottom, in turn, reduces the inner volume of the hearth, causes drainage and other problems that limit productivity, and has a negative effect on hot metal temperature and chemistry. A set of indicators that reflect the internal state of the hearth has been developed. The motivation for the indicators is outlined and their application to hearth state detection is illustrated with several examples from the operation of two Finnish blast furnaces.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 42 (5), 504-511, 2002

  一般社団法人 日本鉄鋼協会

キーワード

• blast furnace hearth
• dead man state
• erosion and skulling
• slag delay

詳細情報

• CRID: 1390001206453170816
• NII論文ID: 10008222987
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.42.504
• COI: 1:CAS:528:DC%2BD38XltVygsbg%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/42/5/42_5_504/_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