包钢球团配加EP灰及酸洗氧化铁皮试验研究  

Experimental study on Baotou steel's pellet with EP ash and pickling iron oxide scale

作　　者：魏国良[1] 刘曙光[1] 付国伟[2] 韩峰 吕志义[2] Wei Guoiang;Liu Shuguang;Fu Guowei;Han Feng;Lv Zhiii(Rare Earth Steel Ironmaking Plant of Inner Mongolia Baotou Steel Co.,Ltd.,Baotou 014010,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,China)

机构地区：[1]内蒙古包钢钢联股份有限公司稀土钢炼铁厂,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《冶金标准化与质量》2024年第5期30-32,共3页Metallurgical Standardization & Quality

摘　　要：针对白云鄂博铁精矿的特殊性及包钢624 m^(2)带式焙烧工艺铁料结构,进行了配加2%EP灰及2%酸洗氧化铁皮的制备氧化球团矿试验研究,结果表明:配加2%EP灰后,可实现膨润土配比降低0.5%,为了保证球团矿抗压强度≥2 500 N,焙烧温度需提高20~30℃;配加2%氧化铁皮后,生球性能小幅改善,为了保证球团矿抗压强度≥2500 N,焙烧温度需提高50~60℃;配加少量酸洗氧化铁皮或EP灰,其化学成分及还原性能可以满足高炉生产需求。Aiming at the particularity of the Bayan Obo iron concentrate and the iron material structure of Baotou Steel's 624m^(2) belt roasting process,a stone oxide pellet with 2%EP ash and 2%pickling iron oxide scale was developed.The result show that:After adding 2%EP ash,the ratio of bentonite can be reduced by 0.5%.In order to ensure the compressive strength of pellets≥2500 N,the roasting temperature needs to be increased by 20℃to 30℃;after adding 2%iron oxide scale,the green pellet performance is slightly reduced.Improvement,in order to ensure the compressive strength of pellets≥2500 N,the roasting temperature needs to be increased by 50~60℃;with a small amount of pickled iron oxide scale or EP ash,its chemical composition and reducing performance can meet the blast furnace production requirements.

关 键 词：白云鄂博铁精矿 球团 EP灰 酸洗氧化铁皮 

分 类 号：TF046[冶金工程—冶金物理化学]