|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Refractory Wear in a High Carbon Ferromanganese Smelting Furnace
||Dean Gregurek, Karl Budna, Daniel Kreuzer, Alfred Spanring
|On-Site Speaker (Planned)
The present paper is focused on the refractory design for a novel HCFeMn smelting furnace that, in comparison to standard submerged arc furnaces, allows the processing of fine ores. A combination of basic and non-basic materials, comprising bricks, castables and ramming mixes was chosen, under consideration of the unique furnace design and process conditions. Post mortem investigations on refractory samples from the different furnace zones showed that the main refractory wear was continuous wear due to hot erosion. Also discontinuous wear due to spalling (as a consequence of infiltration and temperature variations) contributed to refractory damage. All refractory samples suffered from a chemical attack in combination with high thermal load. Additionally, investigations of the process slag and metal were carried out both practically and theoretically using thermodynamic calculations, to better understand the corrosion phenomena observed in the post mortem samples.