|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies: An EPD Symposium in Honor of Professor Ramana G. Reddy
||Insulating or Conductive Lining Designs for Electric Furnace Smelting?
||Joalet Dalene Steenkamp, Glen Michael Denton, Derek Alan Hayman
|On-Site Speaker (Planned)
||Joalet Dalene Steenkamp
DC-arc furnace technology has been applied on industrial-scale in smelting processes since 1983. Applications include reduction of fine ores by carbonaceous reductants to produce ferrochrome and ferronickel alloys and high TiO2-slag, recycling of stainless steel dust and batteries to produce a chromium-nickel-rich and a manganese-rich ferroalloy respectively, and slag valorisation recovering a cobalt-rich alloy from slag produced in copper-smelting. Due to the high intensity of these furnaces, the power-to-feed ratio is an important process control parameter. Mismanagement of the power-to-feed ratio potentially has a negative impact on both the smelting process and the furnace containment system. Design of furnace containment systems can be based on two design philosophies: Insulating and conductive lining designs. The work presented here discusses the significance of the control of the power-to-feed ratio in the management of the furnace containment system, based on either design philosophy, within the context of ferrochrome production in South Africa.
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