The distribution of waste gas temperature along the sinter strand is affected mainly by the permeability of raw material mixture and by the combustion efficiency of coke breeze in sintering reaction. Therefore, the analysis and control of waste gas flow play a important role to control for sinter quality management. In this study, numerical characterizing indices were provided from the temperature distribution of waste gas. For the more, relations between sinter qualities and these indices were estimated by simple regression analysis. From the relationship between both factors, it was confirmed that the sinter productivity was lineally increased by increase of the burn rising rate of waste gas at wind box. Also, from the result of multi-regression analysis between sinter qualities and characterizing indices of the temperature distribution, the sinter quality prediction program was developed. With this program, the productivity, yield and shatter index of sinter ore could be estimated directly when the temperatures of twelve wind box are input as a data file. |
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