Technology of high-rate pulverized coal injection into blast furnace

Y. Takamoto; K. Yamaguchi; H. Ueno; S. Matsunaga; K. Kakiuchi; S. Amano

doi:10.1051/metal/199592030351

All issues

Volume 92 / No 3 (Mars 1995)

Rev. Met. Paris, 92 3 (1995) 351-360

Abstract

Issue		Rev. Met. Paris Volume 92, Number 3, Mars 1995


Page(s)		351 - 360
DOI		https://doi.org/10.1051/metal/199592030351
Published online		23 January 2017

Rev. Met. Paris, Vol. 92, N°3 (Mars 1995), pp. 351–360

Technology of high-rate pulverized coal injection into blast furnace^*

Forts taux d’injection de charbon pulvérisé au haut-fourneau à NSC

Y. Takamoto, K. Yamaguchi, H. Ueno, S. Matsunaga, K. Kakiuchi and S. Amano

Abstract

Based on the results obtained from off-line model experiments and actual furnace tests, a high-rate pulverized coal injection operation was carried out at Kimitsu No. 3 blast furnace of Nippon Steel Corporation. A technology to achieve a stable blast furnace operation at the PCI rate of 190 kg/t has been established. For a stable operation at PCI rates greater than 200 kg/t and coke rates below 300 kg/t, the reduction-melting behaviour of ore at the lower part of the furnace has to be improved.

^*

Subject of lecture at the ATS Steelmaking Conference (Paris, 7-8 December, 1994, Session 6).

© La Revue de Métallurgie 1995

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