The blast furnace smelting technology need coke, it plays an important role during smeltingprocess, not only supply heat energy, but also act as reducing agent forreduction of iron ore, it also has the function to maintain permeability ofstock column skeleton. The price of coke keep increasing, PCI system can reducecoke ratio and production cost, it is a revolutionary development of modernblast furnace smelting.
Pulverized coal injection