|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Aluminum Reduction Technology
||The Challenge to Supply Consistent Alumina Quality to All Pots on the Increasing Longer and Higher Capacity Potlines
||Shane Polle, Shaikha Rashed Al Shehhi, Sunny John Mathew, Bharat Gadilkar, Deepu Ramchandran
|On-Site Speaker (Planned)
In the last thirty years, the majority of Greenfield projects along with some Brownfield upgrades have switched to using pneumatic conveying technology, typically a form of pneumatic technology. Initially batch delivery technology supplied consistent alumina quality along the potline. With modern pneumatic conveying technology, the assumption is still that all pots would receive consistent alumina quality and typically this has been the case. However with high amperage pots combined with long potlines built over the last decade, this assumption may no longer be true with variance in both alumina chemistry and physical properties as the distance from the Gas Treatment Centre increases.
This paper summaries the detailed investigation during commissioning of the Pot Feed System in the world’s longest potline, Potline 3 in Emirates Aluminium. With a nameplate capacity of 550 ktpa, Potline 3 uses more alumina than most aluminium smelters and pneumatically conveys the alumina up to 425m.
||Planned: Light Metals Volume