In actual sintering process

ratios of coal are widely determined by experience.Meanwhile

the consumption models of coal built from many sintering experiments and statistics are too complicated to apply in sintering process.This paper proposed a minimal coke consumption calculating method.Firstly

a BPNN temperature field model of different BTP(burning through point)and thickness is worked out according to isotherm data from actual sintering process.Secondly

the samples of the relationship between BTP

thickness and energy consumption for temperature rising are found and LS-SVM algorithm is applied to build the model due to these characteristics.The energy consumptions of carbonate decomposition and water evaporation are calculated by analyses of physical and chemical changes.Finally

the minimal coke consumption is worked out by coke combustion release process analysis.The simulation and actual sintering data show that the result of this paper reflects the actual need of minimal coke consumption in sintering process and this calculating method can guide the actual production process.