某金矿选矿工艺改造及生产实践

Technological transformation and production practice of mineral processing in a gold mine

某金矿选厂为提升环保标准,增加矿石处理能力,将选厂原混承一全泥氰化炭浆工艺改造为尼尔森重选一混合浮选工艺。通过技术改造及化化,如更换直线师、取消混表工艺等,矿石处理能力由450 t/d提高至700 t/d,尼尔森重选回收率最高达到52.74%,金综合回收率96.60%,生产指标良好。

In order to improve the environmental protection standard of a gold concentrator, increase ore processing capacity, the original process of mixed bearing all slime cyanidation carbon slurry process in the concentrator was transformed into Nielsen gravity separation mixed flotation process. Through technical transformation and chemical technology, such as replacing the straight line division and canceling the mixing process, the ore processing capacity is increased from 450 t/d to 700 t/d,the recovery rate of Nielsen gravity separation reaches 52.74%, the comprehensive recovery rate of gold is 96.60%, and the production index is good.