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首页> 外文期刊>ISIJ international >Effect of Interface Resistance on Gas Flow in Blast Furnace
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Effect of Interface Resistance on Gas Flow in Blast Furnace

机译：界面电阻对高炉煤气流量的影响

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摘要

Any improvement in Blast Furnace productivity under a given set of operating conditions is fundamentally related to better flow distribution of gas through layered burden structure in Blast Furnace. Flow distribution and hence pressure drop of gas in granular zone of blast furnace is dependent on number and thickness of alternating layers of coke and metallic burden. A significant part of this total pressure drop in granular zone can be attributed to interfacial resistance between two successive layers. Whereas, pressure drop in porous layers of materials can be described by well known Ergun's equation in terms of all physical parameters, interface resistance needs specific treatment. Systematic study to investigate the effect of interfacial resistance on gas flow between two successive layers of different material has been attempted in this work. Laboratory scale experiments in scale down model of blast furnace were conducted to establish and quantify interface resistance for different layer configurations.
机译：在给定的一组操作条件下，高炉生产率的任何提高从根本上与通过高炉中的分层炉料结构的气体更好的流量分配有关。高炉颗粒区的气流分布以及气体的压降取决于焦炭和金属负荷交替层的数量和厚度。颗粒区总压降的很大一部分可归因于两个连续层之间的界面阻力。鉴于材料的多孔层中的压降可以通过所有物理参数用众所周知的Ergun方程来描述，而界面电阻则需要进行特殊处理。在这项工作中，已经尝试进行系统研究以研究界面阻力对不同材料的两个连续层之间的气流的影响。进行了高炉按比例缩小模型的实验室规模实验，以建立和量化不同层结构的界面电阻。

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