Electric Furnace Bath Structure During High-Chromium Ferrochrome Production

Resumo

Experimental and industrial data are obtained about the heating rate and degree of Cr reduction for a vertical section of the workspace of an ore reduction electric furnace during treatment of a mixture of lean and rich chromium ores in relation to melting period. A scheme of proposed for the temperature fields and degree of chromium reduction in reaction zones of an ore reduction furnace using data about physicochemical characteristics of the ore raw material, determined under laboratory conditions. It is shown that the degree of Cr reduction in the lower levels of the furnace bath before tapping reaches 95%, and at the end of tapping it reaches up to 85%.