Use of Discrete-Event Simulation for Production Expansion Planning at NLMK Indiana

摘要

In 2019, a discrete-event computer simulation model was developed to assist NLMK in increasing slab productivity at its steel plant in Portage, Ind., USA. The model included all meltshop process activities from scrap charging at the electric arc furnace through casting and slab storage. The objective of the study was to identify the most cost-effective way to improve productivity by optimizing the implementation sequence of capital investments and operational changes. In the end, via detailed what-if analysis, the simulation study provided the client with a road map to achieve a 40% increase in slab production while minimizing the capital investment required.