摘要
The first imported off-gas analysis system on 150 t BOF at Benxi Plates Co.Ltd. is presented and the continuous determination of bath carbon content has been studied. Thecomparison between the whole-course carbon integral model and the end-point carbon prediction modelhas been made. The results show that the regular change of CO, CO_2 and N_2 content in the off-gasduring blowing plays an important role in judging the smelting end-point of converter; the cubiccurve fitting model has a higher hit rate over 95 percent for the heats whose end-point carboncontent is lower than 0.10 percent with a precision of +-0.02 percent and has a large error for theheats whose end-point carbon content is more than 0.15 percent.
The first imported off-gas analysis system on 150 t BOF at Benxi Plates Co.Ltd. is presented and the continuous determination of bath carbon content has been studied. Thecomparison between the whole-course carbon integral model and the end-point carbon prediction modelhas been made. The results show that the regular change of CO, CO_2 and N_2 content in the off-gasduring blowing plays an important role in judging the smelting end-point of converter; the cubiccurve fitting model has a higher hit rate over 95 percent for the heats whose end-point carboncontent is lower than 0.10 percent with a precision of +-0.02 percent and has a large error for theheats whose end-point carbon content is more than 0.15 percent.
