磨矿介质对方铅矿矿浆化学性质的影响  

Effect of Grinding Media on Chemical Properties of Galena Ore Pulp

作　　者：李茂林[1,2] 江宏强[1] 崔瑞[1] 郑思冉 梁华 邓小龙 LI Maolin;JIANG Hongqiang;CUI Rui;ZHENG Siran;LIANG Hua;DENG Xiaolong(College of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;Changsha Research Institute of Mining and Metallurgy Limited Liability Company,Changsha 410012,China)

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿产保护与利用》2018年第1期91-95,共5页Conservation and Utilization of Mineral Resources

摘　　要：为探讨不同磨矿介质对方铅矿矿浆化学性质的影响,选取广东某铅锌铁硫化矿中的方铅矿,在瓷罐瓷球体系和瓷罐铁球体系下进行磨矿试验,分别检测不同磨矿时间下的矿浆p H、矿浆电位Eh、矿浆中溶解氧含量Do、矿浆温度以及矿浆中Pb^(2+)和Fe^(3+)浓度,并根据磨矿过程中发生的局部电池作用和伽伐尼电偶作用的原理,对其影响机理进行分析。试验结果表明:在瓷球和铁球两种磨矿介质条件下,方铅矿矿浆温度基本相同,且随磨矿时间的延长矿浆温度变化不大。但不同的磨矿介质会对方铅矿矿浆p H、矿浆电位Eh、矿浆中溶解氧含量Do、Pb^(2+)和Fe^(3+)浓度造成较大的差异,从而影响方铅矿的浮选行为。To explore the effect of different grinding media on the chemical properties of galena ore slurry,the galena in lead-zinc-iron sulfide ore from Guangdong was selected and ground in the porcelain jar using porcelain ball and iron ball,respectively.During grinding,the pulp pH,the pulp potentials Eh,the dissolved oxygen content Do,the pulp temperature and the concentrations of Pb2+and Fe3+in the pulp were measured under different grinding time.According to the principle of local cell action and the galvanic coupling effect,the influence mechanism of two kinds of grinding media on galena slurry properties was analyzed.The results showed that the temperatures of galena ore pulp were basically the same when grinding with porcelain ball and iron ball,and they did not change much with the increase of the grinding time.However,the pulp pH,the pulp potential Eh,the dissolved oxygen content,and the concentrations of Pb2+and Fe3+in the pulp were badly affected by the grinding media,thus influencing the flotation behavior of galena.

关 键 词：磨矿介质 方铅矿 矿浆化学性质 浮选行为 

分 类 号：TD952.2[矿业工程—选矿]