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

摘要

This paper deals with a layout for a smelter casthouse producing small non-alloyed ingots. The layout of aluminium casthouses has important consequences with respect to safety, investment and operating cost. Traditional solution for casthouse producing non-alloyed ingots is two furnaces per one ingot line. In order to improve the economics and logistics of the casthouse a detailed study was done, which required: Detailed performance analysis, in particular relating to furnace/ingot line connections, impact on maintenance, operations, etc. Hazard study. Modelling of metal flow from tapping in the potline through to the end-product, including breakdowns and downgraded operation. Thermal and flow modelling in the launder, in steady state and temporary operation. Detailed determination of the launder. It was demonstrated that a layout based on such a configuration is superior in terms of full economic cost. This design is now part of our casthouse basic engineering package.