MgO对烧结工艺及烧结矿冶金性能的影响  

Effect of MgO on Sintering Process and Metallurgical Properties of Sinter

作　　者：姜鑫[1] 吴钢生[2] 魏国[1] 李小钢[2] 沈峰满[1] 

机构地区：[1]东北大学,辽宁沈阳110004 [2]包头钢铁(集团)公司,内蒙古包头014010

出　　处：《钢铁》2006年第3期8-11,35,共5页Iron and Steel

基　　金：国家自然科学基金资助项目(50474014)

摘　　要：研究了MgO对烧结工艺及烧结矿冶金性能的影响。研究结果表明,在烧结过程中不加或少加MgO,可提高烧结生产效率,获得冷态强度高、软熔带温度区间窄的烧结矿,从而提高高炉软熔带的透气性、降低料柱全压差。为保证高炉渣对MgO含量的要求,以及确保烧结矿低的低温还原粉化率,提出了合理添加MgO的新工艺。Based on laboratory experiments, the effects of MgO on sintering process and metallurgical properties of sinter are examined. The results show that without or with small amount of MgO in burden, the sintering productivity can be improved, and the sinters have high cold strength and narrow temperature range of cohesive zone. Consequently, the permeability of cohesive zone in blast furnace can be improved and the total pressure drop in blast furnace can be decreased by use of such sinters. In order to ensure proper MgO content in the BF slag and improve the RDI of sinter, a new process of adding MgO in BF is proposed.

关 键 词：MGO 烧结矿 高炉 软熔带 

分 类 号：TF046.4[冶金工程—冶金物理化学]