MgO/Al_2O_3比对烧结矿矿物组成及冶金性能的影响  

Influence of MgO/Al_2O_3 Ratio on Sinter Mineral Composition and Metallurgical Properties

作　　者：王喆[1] 张建良[1] 左海滨[1] 王润博[1] 黄克存 班友合 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]唐山国丰钢铁有限公司技术部,河北唐山063000

出　　处：《烧结球团》2013年第5期1-4,7,共5页Sintering and Pelletizing

基　　金：国家自然科学基金资助项目(No.51204013)

摘　　要：通过烧结杯试验,研究了MgO/Al2O3比对烧结矿矿物组成和冶金性能的影响.结果表明：当MgO/Al2O3比在1.06 ～1.22范围内时,烧结矿的矿物组成较好,且具有纤维状复合铁酸钙与磁铁矿交织熔蚀的微观结构.在此条件下,烧结矿的转鼓强度得到提高,还原性能和低温还原粉化性能得到改善.The pot grate sintering tests were carried out, and the influence of MgO/Al2O3 ratio on the sinter mineral composition and metallurgical properties was studied. The experimental result indicates that, when MgO/Al2O3 ratio is 1.06 - 1.22 ,the mineral composition of sinter is good, and the sinter has a microstructure that calcium ferrites intertwined with magnetite. Under such condition,the tumbler strength of sinter is increased. In addition, sinter reducibility and low temperature reduction degradation performance are also improved.

关 键 词：烧结 MGO Al2O3比 矿物组成 微观结构 冶金性能 

分 类 号：TF046.4[冶金工程—冶金物理化学]