Analysis of reasonable pulverized coal rate of Shasteel 5 800 m3 blast furnace
LEI Ming1,ZHANG Ming-xing1,DU Ping1,QIU Hui2
1. Institute of Research of Iron and Steel of Jiangsu Province Shasteel, Zhangjiagang 215625, Jiangsu, China 2. Hongfa Ironmaking Plant of Shasteel Group, Zhangjiagang 215625, Jiangsu, China
Abstract:Since blown, the Shasteel 5800m3 blast furnace is operated stably and smoothly. According to the operating experience, reasonable pulverized coal rate has been found. Oxygen excess ratio, theoretical flame temperature and permeability resistance index have been considered. Besides, boshgas volume index should also be considered. According to actual operation data, the oxygen excess ratio should be above 0.71, and the theoretical flame temperature should be 2 350 ℃, and permeability resistance index should be in the range of 1.8-2.0. At the same time, the reasonable bosh gas volume index should be no more than 68 m/min. It is because of smaller hearth diameter of 5800m3 blast furnace. If the raw materials and operation are stable, the proper pulverized coal rate is 180 kg/t.
收稿日期: 2014-08-01
出版日期: 2015-04-28
引用本文:
雷 鸣,张明星,杜 屏 ,邱 辉. 沙钢5 800 m3高炉的合理喷煤比分析[J]. 钢铁, 2015, 50(5): 26-29.
LEI Ming,ZHANG Ming-xing,DU Ping,QIU Hui. Analysis of reasonable pulverized coal rate of Shasteel 5 800 m3 blast furnace. Iron and Steel, 2015, 50(5): 26-29.