NEW CASTHOUSE SMELTER LAYOUT FOR THE PRODUCTION OF SMALL NONALLOYEDrnINGOTS: THREE FURNACES/TWO LINES

摘要

This paper deals with a layout for a smelter casthouse producingrnsmall non-alloyed ingots.rnThe layout of aluminium casthouses has importantrnconsequences with respect to safety, investment and operatingrncost. Traditional solution for casthouse producing non-alloyedrningots is two furnaces per one ingot line. In order to improve therneconomics and logistics of the casthouse a detailed study wasrndone, which required:rn1. Detailed performance analysis, in particular relating tornfurnace/ingot line connections, impact on maintenance,rnoperations, etc.rn2. Hazard studyrn3. Modelling of metal flow from tapping in the potlinernthrough to the end-product, including breakdowns andrndowngraded operationrn4. Thermal and flow modelling in the launder, in steady staternand temporary operationrn5. Detailed determination of the launder.rnIt was demonstrated that a layout based on such a configurationrnis superior in terms of full economic cost. This design is nowrnpart of our casthouse basic engineering package.