1. College of Metallurgy and Energy, Hebei Key Laboratory for Advanced Metallurgy Technology, Hebei United University, Tangshan 063009, Hebei, China 2. School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China 3. Ironmaking Department, Handan Iron and Steel Co., Ltd., Hebei Iron and Steel Group, Handan 056000, Hebei, China
Abstract：CaO is a kind of pulverized coal combustion improver which is suited for the blast furnace. It is adsorbing volatile, making fixed carbon overheat at local regions and increasing carbon activity, in this way, pulverized coal can take fire at lower temperature by DTA and TG curves analysis. Collecting unburned coal through simulating combustion conditions of blast furnace, analyzing XRD, IR spectrum and SEM, the microcrystalline parameters of unburned coal increased, the height and diameter of aromatic slices will increase 0.0024nm and 0.0362nm respectively as CaO joined.The absorption peak of unburned coal powder adding CaO is more obviously than raw coal in 1500cm-1 and 3400cm-1. The particles size of unburned coal powder reduced 2.67μm by adding CaO, the morphological appearance become irregular.
冯帅，吕庆，刘小杰，毕耜友，刘然，杜林森. 添加CaO对高炉喷吹煤粉燃烧机制的影响[J]. 钢铁, 2013, 48(6): 15-19.
FENG Shuai,L Qing,LIU Xiao-jie,BI Si-you,LIU Ran,DU Lin-sen. Effect of Adding CaO on Combustion Mechanism of Pulverized Coal Injection in BF. Iron and Steel, 2013, 48(6): 15-19.
2013, Vol. 48 
