| 首秦1号高炉不同喷煤比条件下炉尘灰中含碳物质的研究 |
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| 引用本文： | 丁汝才,吴铿,吴玮璐,费三林,张建民,倪碧帅.首秦1号高炉不同喷煤比条件下炉尘灰中含碳物质的研究[J].煤炭学报,2008,33(11):1301-1304. |
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| 作者姓名： | 丁汝才 吴铿 吴玮璐 费三林 张建民 倪碧帅 |
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| 作者单位： | 1首秦金属材料有限责任公司 炼铁部,河北 秦皇岛，066326; 2北京科技大学 冶金与生态工程学院, 北京，100083 |
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| 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.
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| 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 |
Research on carbonaceous substance of blast furnace dust under different PCI rates at Shouqin’s No.1 blast furnace |
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| Abstract: | 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 No1 BF. |
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| Keywords: | iron making at blast furnace (BF) pulverized coal injection (PCI) rate BF dust (gravitational dust and bag dust of hop pocket) carbonaceous substance |
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