摘要
通过矿相分析高喷煤比时高炉炉尘(重力灰和布袋灰)中岩矿相的组成,给出了在不同喷煤比条件下未消耗煤粉和焦炭颗粒的面积比.分析了不同喷煤比对高炉炉尘中碳质量分数的影响和碳质量分数对未消耗煤粉比例的影响.给出了首秦1号高炉在提高喷煤比的过程中,高炉炉尘中未消耗煤粉和焦炭颗粒的量及煤粉在高炉内利用率的变化.
The microstructure of blast furnace （BF） dust （gravitational dust and bag dust of hop pocket） under increased PCI rate at Shouqin＇ s No. 1 BF was investigated by means of microscopic analysis. The percentage of surface area of unconsumed coal and coke particle was determined under different PCI （pulverized coal injection） rates. Therefore the effect of increased PCI rate on the carbon mass fraction in BF dust and consequently on the unconsumed coal ratio were analyzed. The amount of unconsumed pulverized coal and coke particle as well as utilization factor of pulverized coal were given out under different PCI rates at Shouqin＇ s No. 1 BF.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2008年第11期1301-1304,共4页
Journal of China Coal Society
基金
国家高技术研究发展计划(863)资助项目(2006AA06Z121)
关键词
高炉炼铁
喷煤比
高炉炉尘(重力灰和布袋灰)
含碳物质
iron-making at blast furnace （BF）
pulverized coal injection （PCI） rate
BF dust （gravitational dust and bag dust of hop pocket）
carbonaceous substance
