Modeling method of carbon efficiency calculation in the blast furnace iron making process

During the blast furnace process, carbon plays a very important role, not only participate in iron reduction reaction, but also provide large amount of energy. For the calculation of carbon efficiency in blast furnace iron making process, this paper proposed a calculation modeling method to describe the carbon consumption and energy utilization of blast furnace based on the analysis of the carbon flow transformation analysis. First step of the method is calculating direct reduction degree of the blast furnace process by the actual production data; Secondly, based on the reduction reaction material consumption and energy conversion, complete the calculation of the direct and indirect reduction carbon consumption and heat balance of reduction process in the blast furnace, establish carbon efficiency model with core of carbon reduction utilization and heating efficiency of reduction process. This method is verified by the calculation example, reveals the essence of carbon consumption. The model can be used in the analysis of coke consumption and the economic operation of a blast furnace, improve the efficiency of carbon in the blast furnace.