ABSTRACT This study revealed the relationship between the emission profile of PM10 & PM2.5 and absorption property of porous sintering bed, and elucidated the potential mechanism. Results show that both PM10 and PM2.5 characterized regionally high emission property, and tended to be higher from stage-4 to stage-6 for PM10 and from stage-4 to stage-5 for PM2.5. Increasing the wet mixture layer thickness and moisture content improved the absorption efficiency to PM10 and PM2.5. Potential absorption mechanism can be mainly attributed to the inertial effect and condensed water vapour agglomeration effect in porous sintering bed. Stage-1 to stage-3 corresponded to thicker wet porous particle layer, and stronger agglomeration effect of condensed water vapour, which made the sintering bed of stronger absorption capacity. Since wet mixture disappeared during stage-4 to stage-6, the absorption efficiency of sintering bed to PM10 and PM2.5 was weak, leading to their regional high emission concentration property.

中文翻译：

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铁矿石烧结过程多孔床吸附有害超细颗粒的作用机理

摘要 本研究揭示了 PM10 和 PM2.5 的排放特征与多孔烧结床的吸收性能之间的关系，并阐明了潜在的机制。结果表明，PM10和PM2.5均具有区域性高排放特性，PM10从第4阶段到第6阶段，PM2.5从第4阶段到第5阶段呈偏高趋势。增加湿混合物层厚度和水分含量可提高对 PM10 和 PM2.5 的吸收效率。潜在的吸收机制主要归因于多孔烧结床中的惯性效应和冷凝水蒸气团聚效应。阶段1～阶段3对应的湿多孔颗粒层较厚，冷凝水蒸气的团聚作用较强，使烧结床的吸收能力较强。