Effect of Granule Structure on the Combustion Behavior of Coke Breeze for Iron Ore Sintering
Effect of Granule Structure on the Combustion Behavior of Coke Breeze for Iron Ore Sintering
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DOI：
10.2355/isijinternational.53.1594
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发表时间：
2013-09
影响因子：
1.8
通讯作者：
Yasuhiro Tobu;M. Nakano;T. Nakagawa;T. Nagasaka
中科院分区：
文献类型：
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作者：
Yasuhiro Tobu;M. Nakano;T. Nakagawa;T. Nagasaka
为了提高铁矿石烧结过程中焦炭的燃烧效率，利用TG-DTA和一种能够建立与实际烧结层相似的加热模式的新型组合加热装置，研究了焦炭颗粒结构对焦炭燃烧效率的影响。结果表明：颗粒物类型对颗粒物的燃烧行为有重要影响。而对于芯焦颗粒，邻体效应明显；对于球团状颗粒，邻体效应尚不确定。作者推荐复合型颗粒(粘结在芯粒上的细焦粒)为最佳选择。与单种焦粒相比，可节约焦耗1.2%，提高热锋速度2.3%。
In order to improve the coke combustion efficiency during iron ore sintering, the effect of coke granule structure was investigated with a TG-DTA and a new combination heating equipment capable of establishing similar heating pattern to the actual sintering bed. The results were analyzed as a function of granule type and neighboring specie as follows: The granule type was crucial to the combustion behavior of granules. On the other hand, the effect of neighbors was distinct over core coke particles; meanwhile, the effect remained uncertain in pellet type granules. The authors recommend composite type granules (fine coke particles adhering on a core particle) for the best choice. The type should bring 1.2% save of coke consumption and 2.3% increase in the heat front speed in comparison to coke particles of single type.