1. School of Materials and Metallurgy Northeastern University, Shenyang 110004, Liaoning, China; 2. SSAB Oxelsund AB, Oxelsund SE613 80, Sweden;3. Iron and Steel Company of Meishan, Baosteel Group, Meishan 210039, Jiangsu, China
Abstract：BiPCI technology of pulverized coal injection for blast furnace ironmaking is applied to No.2 blast furnace of SSAB Oxelsund in Sweden, and the notable effectiveness of this BiPCI practice at SSAB has been achieved. The results show, that BiPCI can increase the overall coal rate and decrease the coke rate. When the secondary injection rate of pulverized coal attains to 5.0 kg/t, the coke rate could decrease by 5.0 kg/t; BiPCI can increase the burden permeability, decrease the pressure drop in the furnace, and make gas flow distribution proper, increase the utilization rate of gas; The pulverized coal injected at the secondary injection can be effectively used to protect the coke from fast degradation and improve the coke strength in the blast furnace, which is favorable to lower the high requirement on the coke quality under high PCI rate operation; BiPCI is possible to decrease the heat loss from the furnace wall.
沈峰满;Bo Sundelin;Karin Pualsson;姜鑫;杨文光;. 高炉两段式喷吹煤粉工艺的生产实践[J]. 钢铁, 2007, 42(11): 13-0.
SHEN Fengman;Bo Sundelin;Karin Paulsson;JIANG Xin;YANG Wenguang;. Industrial Practice of BiPCI Process of Pulverized Coal Injection for Blast Furnace Ironmaking. Iron and Steel, 2007, 42(11): 13-0.
2007, Vol. 42 
