大量使用低价矿的MEBIOS技术及其进展.pdfVIP

大量使用低价矿的 MEBIOS 技术及其进展 胡俊鸽 周文涛 郭艳玲 （辽宁省鞍山市鞍钢股份公司技术中心，鞍山 114009 ） 摘 要 日本钢铁企业为了应对铁矿资源发展趋势和降低生产成本，近年不断提高澳大利亚豆矿和马拉曼巴铁矿粉 在烧结中的配比。为了进一步在大量提高低价矿配比的情况下生产出优质低渣比烧结矿，提出了 MEBIOS 技术， 并进行了大量实验室基础性研究。介绍了 MEBIOS 的工艺特点、对生球团成分设计、烧结料层透气性与产率影响 因素、烧结矿还原性影响因素以及生球团在基体烧结料层中置入方式的实验室与数模研究及结果，并对 MEBIOS 技术的可行性、生球团的粒度与强度等进行了讨论。1 关键词 MEBIOS 低价矿烧结 低成本烧结 马拉曼巴矿 豆矿 Development of MEBIOS Technology with Large Amount of Use of Low-price Iron Ore Hu Junge Zhou Wentao Guo Yanling (Technology Center of Angang Steel Company Ltd., Anshan, 114009) Abstract In recent years, the blending ratio of Pisolite and Maramanba iron ore in sintering have been increasing in Japan to cope with the trend of iron ore resource and lower production cost. In order to further use low-price iron ore as main raw material in sintering and produce high quality sinter with low slag ratio at the same time, MEBIOS method was proposed, and various experiments are carried out. The characteristics of MEBIOS, and some results for experimental and simulation models, such as chemical composition of raw pellet replaced into matrix raw material bed, the permeability and yield affecting factors of sintering bed, sinter reducibility affecting factors and the effect of raw pellet alignment on sintering process, etc. are presented. The possibility of MEBIOS, the crushing strength and particle size of raw pellet are discussed. Key words MEBIOS, low-price Iron ore, low cost sintering, maramanba iron ore, pisolite iron ore 1 引言 随着优质铁矿资源日益匮乏和钢铁市场竞争的日益严酷，钢铁企业为了应对铁矿资源发展趋势和降低生 产成本的需要，已经开始考虑增大澳大利亚豆矿、马拉曼巴矿等低价矿的使用量。但是，豆矿、马拉曼巴矿 等具有结晶水含量高、同化性好等特点，增加其在烧结中的配比时，随着温度升高发生结合水脱除而变得多 孔，进入已形成的液相中，发生较高同化率，从而导致烧