摘要
针对钢铁企业含铁尘泥量大、利用率低的现状,介绍了冶金含铁尘泥回收利用的几种方式及其优缺点。物理法的磁选、浮选工艺对尘泥分选处理后可得到含铁原料,但脱除有害元素的能力有限。湿法工艺处理高锌含铁尘泥投资较小,可直接制成产品,二次污染小,但能耗大且酸碱等浸出剂对设备有腐蚀性。火法工艺是国内钢厂最常用的方法,金属化球团可以有效除去尘泥中的有害元素并制成高品位的含铁产品,拥有广阔前景,但投资成本较高,目前难以大范围推广。
The treating processes and its merits and demerits of ferrous dust and sludge were analyzed in this paper according to large amount and low utility ratio.After dealing with sludge by such physical method as magnetic separation and flotation,there produces high-quality graphite mine,however with low degree of removing harmful element.Dealing with sludge of high-zinc by wet processing has less pollution and smaller investment but large energy consumption as well as corrosive to the equipment.Pyrogenic process is most common in China,metallized-pellet method is effective to remove deleterious element and produce high-grade product,which has broad prospect,but also with higher price and still difficult to popularize at present.
出处
《河北联合大学学报（自然科学版）》
CAS
2013年第3期19-23,共5页
Journal of Hebei Polytechnic University:Social Science Edition
基金
国家自然科学基金资助项目(编号:51104054)
河北省自然科学基金-钢铁联合基金资助项目(编号:E2010000948)
河北省高等学校科学研究计划项目(编号Q2012076)
关键词
冶金尘泥
综合利用
金属化球团
转底炉
sludge and dust
comprehensive utilization
metallized pellet
rotary hearth furnace
