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Developing the Technology of Regenerative Siderite Ore Roasting in Shaft Furnaces

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Abstract

This paper shows that the existing siderite ore preparation techniques do not allow achieving high blast-furnace smelting levels as compared with using black iron ore concentrates with a high iron content. To make blast-furnace smelting more efficient, it is necessary to use the metallized product made by regenerative siderite ore roasting. The technology developed for this roasting allows producing metallized concentrate with a Fe content of 65–68%. The main provisions of regenerative siderite ore roasting in shaft furnaces are formulated, and the three-zone shaft furnace design proposed for implementing this process. The thermal and consumption parameters of the process are provided as well as the lean gas circuit of regenerative ore roasting. This circuit allows significant cutting the expenses. The metallized siderite ore product with a high iron content allows gaining major economic benefits in blast-furnace production.

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Authors and Affiliations

  1. Ural Federal University, 620002, Yekaterinburg, Russia

    B. P. Yur’ev, V. A. Gol’tsev & V. A. Dudko

Authors
  1. B. P. Yur’ev
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  2. V. A. Gol’tsev
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  3. V. A. Dudko
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Correspondence to V. A. Dudko.

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Translated by S. Kuznetsov

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Yur’ev, B.P., Gol’tsev, V.A. & Dudko, V.A. Developing the Technology of Regenerative Siderite Ore Roasting in Shaft Furnaces. Steel Transl. 49, 862–866 (2019). https://doi.org/10.3103/S0967091219120143

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