Hot metal Si control at Kwangyang blast furnaces
Conference
·
OSTI ID:129070
- POSCO, Cheollanamdo (Korea, Republic of). Kwangyang Works
Studies of Si transfer in blast furnaces have shown that the Si level in pig iron is influenced more by the reaction of silicon oxide gas generation in the raceway than the chemical reaction between hot metal and slag at the drop zone. Specifications require a Si content of pig iron below 0.15% at the Kwangyang Works, but the use of soft coking coal in the blend for coke ovens, high pulverized coal injection rate into the blast furnace, and the application of lower grade iron ore has resulted in the need to develop methods to control Si in hot metal. In this paper, the results of in furnace Si control and the desiliconization skills at the casthouse floor are described.
- OSTI ID:
- 129070
- Report Number(s):
- CONF-9504182--; ISBN 0-932897-99-1
- Country of Publication:
- United States
- Language:
- English
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