Alternative MA Spinel-Based Lining Concept for Tuyere Zone in Pierce-Smith-Converter

This chapter delves into the evaluation of magnesia-alumina (MA) spinel bricks as a potential alternative to traditional magnesia-chromite (MgCr) bricks in Peirce-Smith-Converters (PSC). The study focuses on the performance of these bricks in the tuyere zone, where significant wear occurs. Through extensive field trials and post-mortem analyses, the chapter provides a detailed comparison of the residual brick thickness, infiltration resistance, and chemical composition of MA spinel and MgCr bricks. The results indicate that MA spinel bricks offer better infiltration resistance and, in some cases, decreased wear rates compared to MgCr bricks. The chapter also discusses the importance of selecting appropriate brick thicknesses for areas with significant wear. The findings suggest that MA spinel bricks could be a viable alternative to traditional MgCr bricks, offering improved performance and potentially reducing the environmental impact of the converting process.