Abstract：The upgraded coal produced by long-flame coal pyrolysis was studied for blast furnace injection. Upgraded coal combustibility and reactivity were studied by thermal gravimetric analysis in laboratory. Combined with scanning electron microscope analysis， the microscopic structure of upgraded coal and F coal was investigated. And finally the performance of upgraded coal for blast furnace injection was investigated by industry experiment. The results showed that combustion and reactivity of upgraded coal were significantly better than that of F coal， which is mainly due to the break of upgraded coal particle structure at low temperature pyrolysis process， resulting in a large number of pores and angular structure. In addition， combustion of upgraded coal and F coal existed synergistic response effect， blended coals combustibility and reactivity were significantly improved， which is in favor of pulverized coal injection coefficient of utilization in blast furnace. Industry experiment results showed that the economic benefits was considerable with coke ratio and fuel ratio decreased.
收稿日期: 2014-12-30
出版日期: 2015-10-12
引用本文:
郑常乐，张建良，章鹏程，王海洋，郭 建. 提质煤代替高炉部分喷吹用煤及其性能[J]. 钢铁, 2015, 50(10): 8-13.
ZHENG Chang-le，ZHANG Jian-liang，ZHANG Peng-cheng，WANG Hai-yang，GUO Jian. Upgraded coal injection on blast furnace and its performance. Iron and Steel, 2015, 50(10): 8-13.
2015, Vol. 50 
