降低石钢烧结矿低温还原粉化率的研究  

Investigation on Improving RDI of SHIGANG Sinter

作　　者：张玉柱[1] 客海滨[1] 王丽丽[1] 邢宏伟[1] 

机构地区：[1]河北理工大学,河北省唐山市063000

出　　处：《烧结球团》2007年第2期27-32,共6页Sintering and Pelletizing

摘　　要：根据石钢烧结矿冷态性能较好,但低温还原粉化性较差的情况,进行了降低烧结矿低温还原粉化率的实验室试验。结果发现,烧结矿中次生Fe2O3含量高、微裂纹多是导致其低温还原粉化性恶化的主要原因,要降低还原粉化率,应着重改善其微观结构。在石钢烧结原料条件下,烧结矿中MgO控制在2.3%时,烧结矿微观结构改善。Point at the problem that the cold state property of SHIGANG sinter is better but the low temperature reduction break-down property is bad, the laboratory experiment to improve sinter RDI have been done. The result shows that more secondary Fe2O3 and inside crack in sinter caused the low temperature reduction degradation index worse. In order to improve the RDI,the sinter microstructure must be regarded, under the condition of SHIGANG sintering raw material, the MgO content in sinter must be controlled around 2.3%.

关 键 词：MGO含量 矿物组成 微观结构 RDI 

分 类 号：TF046.6[冶金工程—冶金物理化学]