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青海某铜矿工艺矿物学研究

来源:汇智旅游网
22 有色矿冶 第31卷 征。 (3)矿石中的铜主要以黄铜矿形式存在的铜占 (3)嵌晶粒状结构:磁铁矿、黄铁矿被黄铜矿包 74.23 ;矿石中的硫主要以黄铁矿形式存在。 (4)主要有用矿物黄铜矿在矿石中占矿物总量 裹形成黄铜矿的镶嵌晶体。 (4)交代结构:黄铜矿交代黄铁矿、磁铁矿并充 填于两者的裂隙之中。 2.3 矿石构造 为2 ,其中至少有4O 与黄铁矿、磁铁矿、脉石矿 物等为连生体,粒度较细,难以解离。 (5)通过对该矿样的原矿性质及物质成分分析 可知,该矿粒度嵌布总体较细,属难解离难选矿石, 应当采取阶段磨矿、阶段选别的试验流程。 参考文献: 谢海云,叶群杰,周平,等.云南思茅地区铜锌硫化矿工艺矿 (1)显微网脉状构造:黄铜矿成显微网脉状赋 存于黄铁矿之中。黄铜矿的粒度一般比较细小,和 黄铁矿的完全解离比较困难。 (2)角砾状构造:矿石矿物(主要是黄铁矿)成 角砾状,黄铜矿充填于黄铁矿结晶空隙之中。 (3)块状构造:以东部矿区最为典型,矿石以黄 铁矿为主,构成块状矿石,一般铜的品位比较低。 (4)脉状构造:黄铜矿沿裂隙充填,呈细脉状出 现,细脉一般不连续,共生矿物主要有铁白云石。 物学分析口].岩矿测试,2014,33(3):345—351. [2] 于宏东.西藏玉龙氧化铜矿工艺矿物学研究[J].有色金属(选 矿部分)2013(1):1—6. E3] 潘兆橹.结晶学与矿物学[M].北京:地质出版,1995. [4] 王团华;于宏东.阿富汗卢格尔省某铜矿石工艺矿物学研究 EJ3.有色金属(选矿部分),2012(10).8—13. [5] 吕宪俊,高清寿.陕西安康金红石矿工艺矿物学研究[J].矿产 保护与利用,1999,12(6):37~40. 3 结 论 (1)青海某地铜矿石矿物组成较复杂,主要矿 石矿物有黄铜矿、黄铁矿、磁铁矿和闪锌矿。 (2)矿石中可供选矿回收的主要组分为铜和 硫,其品位分别为2.62 和38.17 。 E6J 许时.矿石可选性研究[M].北京:冶金工业出版社,1995. [7] 周 强.云南某铅锌矿选矿工艺试验研究[J].矿冶工程,2005, 12(6):27—33, [8] 周乐光.工艺矿物学EM].北京:冶金工业出版社,2002. Study on Process Mineralogy of a Kind of Copper Ore From Qinghai Province WU Jun—jie,LIU Yang,SU Chao,YANG Yan—fang (Shaanxi Experiment Institute of Geology and Mineral Resources,Xfan 7 10054,China) Abstract:The multi metal sulfide ore from certain area in Qinghai province was studied on technological mineralogy.The features of process mineralogy of multi metaI sulfide ore.including the chemical composi— tion,mineral composition,particle size of ore and the structure of ore are studied in detail by various means in the paper.The major part of copper ore contains chalcopyrite,sphalerite,pyrite and magnetite.A num— ber of chalcopyrite are intergrowth with pyrite,magnetite and gangue,granularity of minerals are fine and difficult to dissociate.The gangue minerals are mainlyis quartz and crbonate.The theoretic basis for the choice of mineral processing technique and exploitation of copper ore from Qinghai is provided. Key words:copper sulfide;ntergrowth;rocess mineralogy;dissemination characteristics p ) 、 p p 、 p、 、 ) ≯ p (上接第5 4页)The Application of Curtain Grouting in the Field of Water Control of in Gangtun Molybdenum Ores,Huludao LI Chun—feng (Huludao Bajia Mining Co.,Ltd.Liaoning Huludao 125000,China) Abstract:Daughter river from huludao steel molybdenum southwest to northeast through the mining area, F7 fault as the main water,hydrogeology is complex,belongs to the water deposit,through the surface of curtain grouting,cut off the daughter of channel between river and deposit(F7 fault),in order to block the path of the groundwater flow into the mine,the main water is reduced,make better effect on preven— tion and control of water,the realization of mine safety production. Key words:curtain grouting;prevention and control of inrush water in mine;curtain thickness;water resource protection 

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