(1. 武漢科技大學(xué) 資源與環(huán)境工程學(xué)院，武漢 430081；
2. 武漢科技大學(xué) 冶金礦產(chǎn)資源高效利用與造塊湖北省重點(diǎn)實(shí)驗(yàn)室，武漢 430081；
3. 長(zhǎng)沙礦冶研究院有限責(zé)任公司，長(zhǎng)沙 410012)
摘 要: 運(yùn)用礦物參數(shù)自動(dòng)分析和傳統(tǒng)的工藝礦物學(xué)研究技術(shù)相結(jié)合的方式對(duì)某鉛鋅尾礦濃密機(jī)溢流進(jìn)行了工藝礦物學(xué)研究，研究了該溢流的化學(xué)成分、礦物組成、主要金屬硫化物的產(chǎn)出形式及解離度。分析結(jié)果表明：樣品中金屬礦物主要是黃鐵礦(占溢流樣品質(zhì)量的46.30%)，其次為方鉛礦和閃鋅礦，3種主要礦物的粒度大多小于0.03 mm。MLA的統(tǒng)計(jì)結(jié)果表明：3種主要礦物呈單體產(chǎn)出的比例分別為黃鐵礦94.93%、方鉛礦85.48%和閃鋅礦89.34%。黃鐵礦含量高，解離程度好，預(yù)計(jì)通過(guò)分選可獲得較高品位的硫精礦。基于上述工藝礦物學(xué)分析，推薦將濃密機(jī)溢流通過(guò)高壓水力旋流器分級(jí)脫泥，旋流器沉砂與原回收高硫精礦的給礦混合進(jìn)入原回收高硫精礦的生產(chǎn)流程，可實(shí)現(xiàn)在較低的工業(yè)改造投資條件下，獲得較大的收益。
關(guān)鍵字: 鉛鋅尾礦；濃密機(jī)溢流；工藝礦物學(xué)；礦物參數(shù)自動(dòng)分析；水力旋流器；硫精礦
（1. School of Resources and Environmental Engineering,
Wuhan University of Science and Technology, Wuhan 430081, China;
2. Key Laboratory of Efficient Utilization of Metallurgical Mineral Resources and
Agglomeration of Hubei Province, Wuhan University of Science and Technology, Wuhan 430081, China;
3. Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, China）
Abstract:The valuable elements of a certain lead-zinc tailing thickener overflow have recyclable value. Process mineralogy research of this overflow was implemented using mineral automated quantitative mineralogy (MLA), and the chemical composition, mineral composition, the output form of main metal sulfide and the dissociation degree were investigated by traditional process mineralogy methods. Statistical results show that pyrite is the main metal mineral followed by galena and sphalerite, the mass fraction of pyrite is 46.30%, and most size of the three minerals is under 0.03 mm. The monomer dissociation degrees of pyrite, galena and sphalerite are 94.93%, 85.48% and 89.34%, respectively. The separation of high-grade sulfur concentrate is good due to the high pyrite content and dissociation degree of the sample. Based on the process mineralogy analysis, the desilting of the high-pressure hydrocyclone was mixed with the feed of original production as a new feed to produce high grade sulfur concentrate. The process can achieve larger benefit with few industrial transformation investments.
Key words: lead-zinc tailing; thickener overflow; process mineralogy; mineral automated quantitative mineralogy; hydrocyclone; sulfur concentrate
