The Importance of Understanding Mechanisms in Open-Bath (DC) Processes Related to Furnace Containment

The paper starts with a discussion on “furnace containmentFurnace containment systems”. Recently, there have been several experiences with DCDC furnaces for continuous processing of particulate feed, some of which have experienced containment challenges. The Kazakh high-carbon ferrochromeFerrochrome DC operation is used to investigate what processProcess mechanisms could take place in such a furnaceFurnace. Several scenarios have been simulated with a dynamic multi-zone model to see how and especially how rapidly deviations in feed composition, quantity, or charging location can affect the operation. Of interest also are how fast these deviations could be detected and especially what data could be monitored to recognise them. This paper contributes to understanding fundamental mechanisms inside DCDC furnaces, which are becoming even more important due to an increased interest in open-bath furnaces for smelting DRIDirect Reduction Iron (DRI). A better understanding of processProcess mechanisms can support in de-risking new equipment and processes, ensuring a safer operation, also for green steel production.