摘要
对鞍钢某选厂混磁精矿的矿物特征进行了测定。并根据矿物特性,利用表面活性剂和脂肪酸研制了新的反浮选捕收剂,该捕收剂适宜的矿浆温度可从28℃降到18~20℃。实验室浮选试验结果表明,18℃下,开路一粗一精浮选,可获得精矿全铁品位68.24%、回收率68.29%;闭路一粗一精三扫浮选,可获得精矿全铁品位68.65%、回收率90.54%。16~18℃下工业现场试验可获得精矿全铁品位68.14%、尾矿全铁品位15.38%,与原来28℃分选指标相当。试验结果可为选厂降低成本、节省能耗、增加效益提供技术支撑。
The mineral characteristics of the mixed magnetic concentrates in the dressing plant in Anshan Iron and Steel Co Ltd were identified.Based on that,a new reverse flotation collector was developed by use of surfactants and fatty acids.It is shown that with this collector,the pulp temperature can be reduced from 28℃to 18~20℃.Laboratory test at 18℃results show that,an open-circuit flotation by adopting one roughing and one cleaning can achieve 68.29%recovery into a concentrate with grade of 68.24%TFe,and a closed-circuit flotation adopting one roughing,one cleaning and three scavenging can achieve 90.54%recovery into a concentrate grading 68.65%TFe.The on-site commercial tests at 16~18℃results in the concentrate with TFe content of 68.14%and tailings with TFe content of 15.38%,which are equal to the results obtained from the traditional beneficiation at 28℃.It is concluded that such test results can be taken as the technical reference for dressing plant for the purpose of cost reduction,energy conservation and profit improvement.
作者
索明名
姜永良
辛思奇
金明鉴
姜效军
SUO Ming-ming;JIANG Yong-liang;XIN Si-qi;JIN Ming-jian;JIANG Xiao-jun(School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,Liaoning,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2020年第1期58-61,64,共5页
Mining and Metallurgical Engineering
关键词
节能降耗
低温反浮选
捕收剂
表面活性剂
铁精矿
energy conservation and consumption reduction
low temperature reverse flotation
collector
surfactant
iron concentrate
