Abstract: In this paper, Exergy analysis method was applied to the energy transfer and conversion process of typical pipeline steel smelting process. The result showed that, the external exergy lose is the main, account for 84.39% of total exergy loss; the exergy loss percentage of converter, tapping process, LF, RH and calcium treatment process is 37.42%, 27.94%, 13.13%, 19.92% and 1.59% respectively, and its main exergy loss is derived from converter slag discharging, heat dissipation, unavailable electric energy, work of steam and dust emission respectively. The emphases of decreasing exergy loss lie in heat recovering of converter slag, shape controlling of molten steel stream in tapping, improvement of ladle pre-heating, and efficiency enhancing of arc heating during LF refining. |