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Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars

ISSN 2594-357X

42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking — vol. 6, num.6 (2012)

Title

IMPROVED HEARTH LIQUIDS MANAGEMENT AND RECOGNISING ITS INFLUENCES THROUGHOUT THE BLAST FURNACE

IMPROVED HEARTH LIQUIDS MANAGEMENT AND RECOGNISING ITS INFLUENCES THROUGHOUT THE BLAST FURNACE

Authorship

Chapman, Michael; Nightingale, Robert; Kelly, B.; Kaye, B.; Tanzil, F.; Sullivan., P.

Chapman, Michael
Chapman, Michael

I am this author

Nightingale, Robert
Nightingale, Robert

I am this author

Kelly, B.
Kelly, B.

I am this author

Kaye, B.
Kaye, B.

I am this author

Tanzil, F.
Tanzil, F.

I am this author

Sullivan., P.
Sullivan., P.

I am this author

DOI

10.5151/2594-357X-22164

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Abstract

In 2005 a dramatic and deliberate change in casting philosophy was adopted on both of the BlueScope Steel Port Kembla blast furnaces. The change was from a “dry hearth” practice where the iron/slag interface was maintained low in the furnace to one where the iron/slag interface was maintained at or above the taphole level. The change achieved the targeted reduction in slag inventory being carried by the furnace. The variability of all aspects of casting also improved. Anticipated improvements in hearth sidewall heat loads were observed. Stave in-service conditions were also significantly affected by the changed casting philosophy, with a reduction in heat load and improved consistency observed around the furnace. This paper reviews the influence of the changed casting philosophy on the operations of the whole blast furnace by reviewing specific casting indices, deadman behaviour and gas and burden distribution. The impact on stave in-service conditions introduces a newly developed smelting line index.

 

In 2005 a dramatic and deliberate change in casting philosophy was adopted on both of the BlueScope Steel Port Kembla blast furnaces. The change was from a “dry hearth” practice where the iron/slag interface was maintained low in the furnace to one where the iron/slag interface was maintained at or above the taphole level. The change achieved the targeted reduction in slag inventory being carried by the furnace. The variability of all aspects of casting also improved. Anticipated improvements in hearth sidewall heat loads were observed. Stave in-service conditions were also significantly affected by the changed casting philosophy, with a reduction in heat load and improved consistency observed around the furnace. This paper reviews the influence of the changed casting philosophy on the operations of the whole blast furnace by reviewing specific casting indices, deadman behaviour and gas and burden distribution. The impact on stave in-service conditions introduces a newly developed smelting line index.

Keywords

Blast Furnace; Hearth; Deadman; Staves; Smelting Line.

Blast Furnace; Hearth; Deadman; Staves; Smelting Line.

How to refer

Chapman, Michael; Nightingale, Robert; Kelly, B.; Kaye, B.; Tanzil, F.; Sullivan., P.. IMPROVED HEARTH LIQUIDS MANAGEMENT AND RECOGNISING ITS INFLUENCES THROUGHOUT THE BLAST FURNACE , p. 832-842. In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking, Rio de Jabeiro, 2012.
ISSN: 2594-357X , DOI 10.5151/2594-357X-22164