钢渣预粉磨技术  

Steel slag pre-grinding technology

作　　者：张日华[1] 贾保栓 任素芳 

机构地区：[1]洛阳理工学院,河南洛阳471023 [2]济源国泰微粉科技有限公司,河南济源454650

出　　处：《矿山机械》2017年第9期42-44,共3页Mining & Processing Equipment

基　　金：河南省科技计划项目"钢渣资源化关键技术的研究开发"(112102310430)

摘　　要：钢渣中的单质铁和砂岩颗粒的易磨性差、活性低,对钢渣粉磨以及钢渣微粉的质量均有不利影响。通过试验,确定渣铁离解粒径为0.15 mm,采用干法棒球磨、双层回转筛筛分等预粉磨工艺,可实现钢渣单质铁和砂岩颗粒的有效分离,而且提高了钢渣微粉的粉磨效率和产品质量,降低了电耗。The zero-valent iron and the sandstone particles in steel slag are characterized by poor grindability and low activity, which results in adverse effects on the pulverization of steel slag and the quality of steel slag powder. The dissociation grain size of the steel slag was determined as 0.15 mm after test. And then, the pre-grinding technology such as dry baseball grinding and double-layer rotary sieving was applied to realize effective separation of the zero-valent iron and the sandstone particles in steel slag, thus the pulverization efficiency and the product quality of the steel slag improved, and the power consumption reduced.

关 键 词：钢渣 单质铁 预粉磨 棒球磨 双层回转筛 

分 类 号：TQ029.1[化学工程] TQ177