山东省某含金硫化矿最大可浮粒度浮选试验研究  

Research on Flotation Test of Flotation Maximum Diameter in a Gold Sulfide Ore of Shandong Province

作　　者：胡海祥[1] 范作鹏[2] 牛桂强[2] 王攀志[2] 刘海龙[2] 

机构地区：[1]江西理工大学应用科学学院,江西赣州市341000 [2]山东黄金集团有限公司焦家金矿,山东莱州市261441

出　　处：《矿业研究与开发》2015年第7期39-43,共5页Mining Research and Development

基　　金：江西省科技厅软科学(2015)研究计划项目(20151BBA10050);江西省社会科学"十二五"(2012)规划项目(12YJ57);江西理工大学校级科研基金重点项目(NSFJ2014-K04)

摘　　要：矿石嵌布粒度不均匀颗粒的浮选普遍存在,在浮选系统中探索颗粒的最大可浮粒度对磨矿、分级、浮选等作业具有重要现实意义。针对山东省某含金硫化矿在不同的捕收剂浓度、起泡剂用量、充气量、刮泡速度等条件下,对10个粒级的颗粒进行浮选试验。试验结果表明,黄药浓度为70.00,55.32,35.65 mg/L时,最大可浮粒度分别为0.229,0.177,0.168mm;2#油用量为90,60,30g/t时,最大可浮粒度分别为0.202,0.177,0.172 mm;充气量为5000,4000,3000mL/min时,最大可浮粒度分别为0.258,0.177,0.162mm;刮泡速度为45,30,15r/min时,最大可浮粒度分别为0.236,0.177,0.170mm。其中捕收剂浓度、充气量、刮泡速度是影响最大可浮粒度的主要因素,起泡剂用量影响不明显。最大可浮粒度对磨矿而言可作为判断粗粒是否欠磨的重要依据,对浮选而言可作为判断颗粒能否上浮的最大尺度,对粗选、扫选、精选都具有重要意义。The flotation with uneven disseminated particles is widely existed in dressing plant. So exploring flotation maxi- mum diameter has important significance for grinding, grad- ing and flotation. Aiming at a gold sulfide ore in Shandong province, flotation tests of ten graded particles were carried out under different conditions of collector concentrations, frother dosage, aeration rate and blow bubble velocity. The experimental results showed that the flotation maximum diameters were respectively 0.229, 0.177, 0.168 mm with the xanthate concentration of 70.00, 55.32, 35.65 mg/L, 0.229, 0.177,0. 168 mm with the terpenic oil consumption of 90, 60, 30 g/t, 0.258,0.177,0.162 mm with the aeration rate of 5000, 4000, 3000 mL/min, and 0.236,0.177,0.170 mm with the blow bubble velocitiy of 45,30,15 r/min. From the above, xanthate concentration, aeration rate and blow bub- ble velocity were the main factors to influence maximum floating granularity, rather than the frother dosage. The flotation maximum diameter could be used as important basis to judge fineness of coarse grain in grinding, and could be used as the maximum particle to judge particles whether can float, which had important significance for roughing, scav- enging and cleaning.

关 键 词：硫化矿 最大可浮粒度 浮选试验 

分 类 号：TD923[矿业工程—选矿]