|About this Abstract
||2014 TMS Annual Meeting & Exhibition
||Celebrating the Megascale: An EPD Symposium in Honor of David G.C.Robertson
||From Phase Equilibrium and Thermodynamic Modelling to Freeze Linings – The Development of Techniques for the Analysis of Complex Slag Systems
||Ata Fallah Mehrjardi, Peter C Hayes, Evgueni Jak
|On-Site Speaker (Planned)
Modern analytical tools, such as electron probe X-ray microanalysis (EPMA), are used in experimental characterisation of phase equilibria and microstructures of complex slags. Integrated thermodynamic computer packages, such as FactSage, are used to provide more accurate descriptions of complex slag systems.
These advanced methodologies have been applied to characterise dynamic steady state freeze linings in slag systems using submerged cold finger probes at controlled laboratory conditions, establishing the effects of bath chemistry, temperature, heat extraction rate and bulk fluid flow.It has been found that freeze lining interface temperatures can be lower than the bulk slag liquidus temperature, and that stable operation below the liquidus is possible. A conceptual model has been developed to explain the phenomenon and the range of interface temperatures that can be obtained in dynamic steady state conditions.These findings have important implications for the design of freeze linings and possible improvements to high-temperature metallurgical operations.
||Planned: A print-only volume