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<p>The necessity of pre-metalizing briquettes for blast furnace production is justified as a&#xa0;means of imparting mechanical strength comparable to that of pellets. The criteria for selecting the roasting metallization method for ore and ore-carbon briquettes are discussed. The proposed approach allows for the production of high-strength lump charge material with a&#xa0;high iron content and significantly reduced binder consumption compared to traditional cold briquetting. Experimental results confirm the possibility of achieving metalized briquettes with strength values that exceed those of roasted pellets. The applicability of the Ryshkowitch–Duckworth model for assessing briquette strength during roasting is also demonstrated. Finally, a&#xa0;comparison is conducted between metallization using roasting furnaces and the Midrex direct ironmaking reactor.</p>

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Metallized briquettes—a promising charge material for ferrous metallurgy

  • 期刊论文

  • 发表日期：

    2025年9月3日

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  • A. M. Bizhanov,
  • S. A. Zagaynov,
  • V. V. Bragin,
  • I. S. Bersenev

摘要

The necessity of pre-metalizing briquettes for blast furnace production is justified as a means of imparting mechanical strength comparable to that of pellets. The criteria for selecting the roasting metallization method for ore and ore-carbon briquettes are discussed. The proposed approach allows for the production of high-strength lump charge material with a high iron content and significantly reduced binder consumption compared to traditional cold briquetting. Experimental results confirm the possibility of achieving metalized briquettes with strength values that exceed those of roasted pellets. The applicability of the Ryshkowitch–Duckworth model for assessing briquette strength during roasting is also demonstrated. Finally, a comparison is conducted between metallization using roasting furnaces and the Midrex direct ironmaking reactor.