The refractoriesRefractories are indispensable products in every high temperature process, such as in steel, glass, cement and non-ferrousFerrous industries, e.g. copperCopper, nickelNickel and lead furnacesFurnace. Copper smeltingCopper Smelting furnacesFurnace are typically lined with magnesia-chromite refractoriesRefractories. The installed refractoryRefractories lining is exposed to several stresses, rather complex in their interaction. Therefore, a detailed investigation and understanding of wear mechanisms through “post-mortem studies” is an important prerequisite for the refractoryRefractories producer. This study evaluates the common refractory wearRefractory wear mechanisms as observed in the copper anode furnaceCopper Anode furnace. All these wear parameters lead to severe degeneration of the brick microstructureMicrostructure and to a decreased lining life. The infiltrationInfiltration results in significant changes in the material properties; the influence of these changes on the lining was investigated withThermo-mechanical finite element analysis numerical thermo-mechanical finite elementElements simulations considering a virgin lining, an infiltrated one and a worn one. Based on such research results, combined with specific process knowledge, RHI Magnesita can recommend appropriate brick lining solutions for metallurgical copper smeltingCopper Smelting furnacesFurnace.

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Numerical Simulation and “Post-mortem” Studies: The Holistic Approach for Optimized Lining Concepts in the Copper Smelting Furnaces

  • Dean Gregurek,
  • Ulrich Marschall,
  • Thomas Prietl,
  • Jürgen Schmidl

摘要

The refractoriesRefractories are indispensable products in every high temperature process, such as in steel, glass, cement and non-ferrousFerrous industries, e.g. copperCopper, nickelNickel and lead furnacesFurnace. Copper smeltingCopper Smelting furnacesFurnace are typically lined with magnesia-chromite refractoriesRefractories. The installed refractoryRefractories lining is exposed to several stresses, rather complex in their interaction. Therefore, a detailed investigation and understanding of wear mechanisms through “post-mortem studies” is an important prerequisite for the refractoryRefractories producer. This study evaluates the common refractory wearRefractory wear mechanisms as observed in the copper anode furnaceCopper Anode furnace. All these wear parameters lead to severe degeneration of the brick microstructureMicrostructure and to a decreased lining life. The infiltrationInfiltration results in significant changes in the material properties; the influence of these changes on the lining was investigated withThermo-mechanical finite element analysis numerical thermo-mechanical finite elementElements simulations considering a virgin lining, an infiltrated one and a worn one. Based on such research results, combined with specific process knowledge, RHI Magnesita can recommend appropriate brick lining solutions for metallurgical copper smeltingCopper Smelting furnacesFurnace.