Higher combustibility and coal injection rate can be acquired in BF by using the coal with lower metamorphic degree and higher content of active matter.
喷吹低变质度、高活性组份含量的煤可以获得较高的燃烧率和较大的喷煤量。
The increase of high blast temperature is an effective measure to enhance pulverized coal injection rate, reduce energy consumption, and cost.
高风温是高炉提高喷煤比、降低工序能耗、降低成本的有效措施。
The factors for affecting coke rate were discussed such as coal injection, blast temperature, silicon content and charging patterns.
同时也讨论了喷煤、风温、铁水硅含量及装料制度对焦比的影响。
Calculation and plotting methods of BF operation line without coal injection are modified, and calculation formulae of BF operation line with oxygen enrichment and high PCI rate are deduced.
作者对不喷煤时高炉操作线的计算和绘制方法进行修正，推导出富氧大喷煤时高炉操作线的计算公式。
The coal rate is being increased in recent years owing to the high economics of coal powder injection.
由于高炉喷煤有着显著的经济效益，故近年来煤比正在不断提高。
In the forward to 21 century, the blast furnace technology will be improved in several fields: 1. injection coal and decrease coke rate, 2. Extending of BF campaign life.
面向21世纪，高炉技术将在以下几个方面等到得到了明显的进步：1 .大量喷煤降低焦比。
To further increase PCI rate, such works as using quality coal, reforming coal injection system, improving the condition of BF operation will be done.
提出了进一步提高煤比所要做的工作，如优选煤种、改造煤粉喷吹系统、改善高炉生产条件等。
To further increase PCI rate, such works as using quality coal, reforming coal injection system, improving the condition of BF operation will be done.
提出了进一步提高煤比所要做的工作，如优选煤种、改造煤粉喷吹系统、改善高炉生产条件等。
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