|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Cast Shop Technology
||Structural Integrity Assessment of Pressurized Ladles for Aluminum Smelting
||Maher Al-Dojayli, Pouya Zangeneh, Alexandre Lamoureux, Daniel Richard, Pierre-Louis Allaire, Hamid Ghorbani
|On-Site Speaker (Planned)
Pressurized ladles, being closed, minimize aluminum dross due to oxidization and conserve energy required for ladle preheating. Design of pressurized ladles is not addressed by ladle design standards such as AISC Technical Report No. 9. This paper presents a design-by-analysis methodology for structural integrity assessment of pressurized ladles using finite element analysis and guidelines of ASME Boiler and Pressure Vessel Code. Transient temperatures in the ladle shell during preheating and aluminum charging / discharging are estimated and validated against site measurement data. Thermal loads are then combined with gravity loads (ladle self weight and molten metal charge) and ladle internal pressure at different pressurization, lifting and metal pouring stages. The resultant stresses and deformations in the ladle are compared with the ASME allowable limits against plastic collapse, thermal ratcheting and fatigue failures. This paper demonstrates the robustness of design-by-analysis methodology for integrity assessment of ladles under non-standard conditions.
||Planned: Light Metals