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首页> 外文期刊>ISIJ international >Effect of Utilization of Metallic Fe Particles as an Agglomeration Agent on the Permeability of Sintering Bed
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Effect of Utilization of Metallic Fe Particles as an Agglomeration Agent on the Permeability of Sintering Bed

机译：金属铁颗粒团聚剂对烧结床渗透性的影响

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In this study, the effects of adding metallic Fe particles to coke in an effort to reduce the CO_(2) emissions associated with sintering were investigated. The changes to the structure and permeability of the sintering bed were analyzed in a laboratory-scale sintering simulator. The results were then used to compare agglomerates material containing metallic Fe particles with a 100% coke bed. The pressure drop of the packed bed of the mixture of model mini-pellets (ACPs) and coke particles increases until the bed reaches the temperature at which the adhering layer of ACP starts to melt, and then starts to gradually decrease. The pressure drop for metallic Fe particles, however, begins to decrease at an earlier stage, and then increases until its peak value. This difference can be attributed to differences in the products formed from oxidation.The sintering experiments were made by making changes to the CaO composition of the sintering bed: 5% to 15% was substituted with metallic Fe particles. A high CaO content resulted in a lower pressure drop of the bed from the start to 200 s sintering apparently due to the difference in the melting behavior of the materials at the initial stage of sintering.
机译：在这项研究中，研究了在焦炭中添加金属铁颗粒以减少与烧结相关的CO_（2）排放的效果。在实验室规模的烧结模拟器中分析了烧结床结构和渗透率的变化。然后将结果用于比较含金属Fe颗粒和100％焦炭床的团聚材料。模型微丸（ACP）和焦炭颗粒的混合物的填充床的压降增加，直到该床达到ACP粘附层开始熔化然后逐渐降低的温度为止。然而，金属铁颗粒的压降在较早阶段开始减小，然后增加直至其峰值。这种差异可以归因于由氧化形成的产物的差异。通过改变烧结床的CaO组成来进行烧结实验：用金属Fe颗粒代替5％至15％。高CaO含量显然导致了从烧结开始到烧结200 s时床层的压降较低，这是由于烧结初期材料的熔融行为不同所致。

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