| Abstract Scope |
The refractories are indispensable products in every high temperature process, such as steel industry, non-ferrous metal plants (e.g. copper, nickel and lead furnaces), etc. The installed magnesia-chromite refractory 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 refractory producer. This study includes a complete chemical analysis, mineralogical investigation and thermo-chemical calculation via FactSage software. Additionally, in order to determine the most suitable refractory products and to improve the lining life of refractories, practical corrosion testing with processing slags is performed. For this purpose, the test-facilities, such as induction furnace, rotary kiln, high-frequency induction furnace, allow the best possible understanding of chemical wear on a pilot scale. Based on such research results, combined with specific process knowledge RHI Magnesita can recommend appropriate brick lining solutions for metallurgical furnaces. |