|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Modelling of Metal Loss in Ferromanganese Furnace Tapping Operations
||Quinn Reynolds, Jan Erik Olsen
|On-Site Speaker (Planned)
During the pyrometallurgical production of industrial alloys such as ferromanganese in electric smelting furnaces, molten slag and metal phases are tapped from the unit at regular intervals. This involves opening a dedicated channel in the furnace sidewall (the tap-hole) and allowing the contents of the vessel to drain through it. After exiting the tap-hole, the stream of molten material is directed along open launders and empties into one or more storage ladles. Intermixing of slag and metal phases occurs frequently during the latter stages of the tapping process, and if not carefully managed, can result in significant metal being lost to the waste slag by entrainment. This paper presents the results of a computational fluid dynamics study of the multiphase free surface fluid flow in tapping launders and ladles, with a specific focus on the impact of various design and operational parameters on metal losses to the slag.