Alumina Handling in the Smelter - From Port to Pot

摘要

Alumina is the main raw material for primary aluminium production and the smelters rely on continuous, steady streams of alumina to the pots. At the pot, variations in the alumina quality shall be minimized. Fluoride content, particle size distribution, attrition, segregation, powder flowability and impurities all are important parameters that are affected and partly controlled by the alumina handling and treatments including the alumina silo storage, transport, screening and gas treatment /alumina enrichment systems upstream the pots.The status of alumina handling and research will be reviewed, and new ideas will be presented based on Just-in-time principles, close review of redundancy requirements, storage capacity and how to minimize quality variations all the way from the port to the pot.