摘要
为解决厂坝铅锌矿因采矿从露天开采转入井下残采而带来的选矿指标持续下降的问题,针对其矿石为硫化-氧化混合型铅锌矿的特点,进行了浮选新药剂制度的研究。新药剂制度在选铅时用硫化钠活化氧化铅、用高效捕收剂D421强化铅浮选,在锌精选时添加水玻璃和MP抑制二氧化硅,实验室试验和工业试验均取得了令人满意的效果。研究成果转化为生产后,全面提高了厂坝铅锌矿的选矿指标,每年可为企业增加经济效益3700万元以上。
To solve the problem of continuous decrease of beneficiation indexes with the transfer from open-pit mining to underground mining of residual ores in Changba Lead-Zinc Mine, and in view of the characteristics of its sulfide-oxide mixed lead-zinc ore, research was made on a new flotation reagent regime adopting sodium sulfide for activating lead oxide, an efficient collector D421 for enhancing lead flotation, and sodium silicate and MP for depressing silica in zinc cleaning. Both its lab and industrial tests gained satisfactory results. Since its use in the production, the beneficiation indexes of this mine have been fully improved, which can bring an over 37 million yuan additional economic benefit per annum.
出处
《金属矿山》
CAS
北大核心
2009年第4期43-45,59,共4页
Metal Mine
基金
甘肃省2006年度科技重大专项(编号:2GS063-A52-007-02)
