摘要
具体介绍新桥矿业公司选矿工艺的改进及其效果。将流程改为一粗二精二扫流程 ,虽然原矿铜品位由 3%以上降至 1%以下 ,但精矿铜品位保持不变。石灰由块状人工加料改为粉状乳化进料 ,稳定浮选条件和指标。矿石泥化迫使脱水工艺结构改进 ,铜精矿水分由 16%降到 13 5 %以下 ,硫精矿水分降到 12 %以下。随着原矿铜品位由高到低及金银含量的变化 ,由硫氮丙腈酯改为丁胺黑药和松醇油 ,最后采用以Y89为主的组合药剂。
The improvement of mineral processing in Xinqiao Mining Industry Corporation is described By means of changing process of one roughing, one cleaning, and three scavenging to that of one roughing, two cleaning, and two scavenging, the grade of copper concentrate is steady while the grade of ores reduces from 3% or above to 1% or less The manual addition of massive lime is converted to emulsification feeding, in order to stabilize the condition and index of floatation The influence of ore sliming on dewatering process is eliminated by adjusting of flow sheet, the moisture of copper concentrate and sulfur concentrate decreases by a factor of 2%～3% For floatation agents, cyanoethyl diethyl dithiocarbamate is used first for high grad ores, then dithiophosphoate collectors for low grad ores, combination regents based on Y89 for high gold and silver content ores The mineral processing is transformed as the change of ore properties
出处
《有色金属》
CSCD
2002年第1期60-62,共3页
Nonferrous Metals
