摘要
银山选矿厂选铜尾矿含硫品位2.13%,矿量约5 400 t/d.为充分回收尾矿中的硫矿物资源,针对硫矿物特点,对硫化矿物的捕收剂、活化剂、抑制剂、入选浓度进行了条件试验,为提高硫精矿品位增加了精选作业次数,最终确定采用二精、一粗、一扫、中矿顺序返回工艺流程,确定入选浓度45%,丁黄药35 g/t和起泡剂20 g/t,不添加抑制剂、活化剂的药剂制度.闭路试验可取得硫精矿品位45.52%,回收率47.88%的技术指标,根据闭路试验结果,推荐采用旋流器预先分级提高入选浓度后再浮选的工业回收流程.
Tailings of sulfur ore grade is 2.13%, and the amount is about 5 400 t/d in Yinshan plant. The sulfur concentrate is recovered from the full recovery of sulfur mineral resources in the tailings. The technical index on the sulfur concentrate grade is 45.52%, and the recovery rate of 47.88% is obtained. Condition tests are done on activator, flotation density, depressant and collector of sulfide minerals, in order to improve the sulfur concentrate grade and increase the cleaning times. Finally, this paper confirms the return process, i. e. two refinement, one roughing, one scavenging, and the middlings order, with concentrate grade of 45% , butyl xanthate 35 g/t and foaming agent 20 g,/t by not adding any depressant and activator to handle the tailings. Based on the closed circuit test results, this paper recommends the use of cyclone pre classification of industrial process for the recovery of flotation increase density.
出处
《矿业工程研究》
2014年第1期78-80,共3页
Mineral Engineering Research
关键词
尾矿
硫精矿
回收率
tailing
sulfur concentrate
recovery rate
