摘要
大山选矿厂投产以来,针对浮选工艺流程中的问题做了大量改进:给药系统经历了从投产初的给药泵到 1995年的电子给药机,再到1998年的PLC-Ⅲ-64／5程控加药机和新型电磁阀的改进历程;浮选工艺经历了投产时的混合-分离两段浮选工艺,到2001年后的优先-混合分步浮选工艺的改进历程。通过这些改进,加上对原有设备性能的提高和新设备、新药剂的使用,使浮选指标不断提高,铜精矿品位从1991年的22．99％提高到2004年的24．89％,铜回收率从1991年的78．34％提高到2004年的86．72％。
A lot of questions had appeared in Dashan ore dressing plant since it was put into production .By adopting a series of important measures, copper content of copper concentrate has increased from 22.99% of 1991 to 24.89% of 2004, whereas copper recovery has increased from 78.34% of 1991 to 86.72% of 2004. These measurees are listed as follows： （1）reagents feeding system had changed from feeding pump in early years of 1990＇s to electronic machines in 1995 ,finally to PLC-Ⅲ-64 programmed apparatus and new model electronic valve in 1998; （2）flotation circuits had reformed from bulk separation to preferentialbulk flotation after 2001; （3）improving on old equipments,such as flotation cells; （4）lots of new reagents including frother 204, frother 111, collector Y89 had been put into practice.
出处
《有色金属（选矿部分）》
CAS
2006年第3期1-5,13,共6页
Nonferrous Metals（Mineral Processing Section）
关键词
浮选
工艺
流程
改进
药剂
flotation
technology
flowsheet
innovation
reageants
