梅山铁矿赤铁矿石工艺矿物学研究  

Study on Process Mineralogy of Hematite Ore in Meishan Iron Mine

作　　者：朱华根 张祖刚 林小凤 ZHU Huagen;ZHANG Zhugang;LIN Xiaofeng(Mining Branch,Baowu Resources Nanjing Baodi Meishan Industrial City Development Co.,Ltd.;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.)

机构地区：[1]南京宝地梅山产城发展有限公司矿业分公司,江苏省南京市210041 [2]中钢集团马鞍山矿山研究总院股份有限公司

出　　处：《现代矿业》2025年第3期143-147,共5页Modern Mining

摘　　要：为给后期矿石资源的合理利用提供科学依据,对梅山铁矿-318~-366 m水平代表性赤铁矿石进行了以矿石成分、矿石结构构造、主要矿物结构与嵌布关系、主要矿物嵌布粒度为主的工艺矿物学研究。结果表明:矿石中主要有用矿物为赤铁矿、菱铁矿和磁铁矿,矿石主要构造为块状构造、脉状构造和角砾状构造,矿石的结构主要为粒状结构、斑状结构、浸染状结构、网状结构、脉状结构、交代残余结构和包含结构;有用铁矿物菱铁矿的嵌布粒度最粗,赤铁矿粒度粗细不均,磁铁矿结晶粒度最细,矿石中的菱铁矿、赤铁矿(含假象赤铁矿)和磁铁矿在-0.07 mm的分布率分别为43.09%、55.76%、68.81%。In order to provide a scientific basis for the rational utilization of ore resources in the later stage,the process mineralogy of the representative hematite ore at the level of-318~-366 m in Meishan Iron Mine is studied based on the ore composition,ore structure and texture,main mineral structure and dissemination relationship,and main mineral dissemination size.The results show that the main useful minerals in the ore are hematite,siderite and magnetite.The main structures of the ore are massive struc-ture,vein structure and brecciated structure.The texture of the ore is mainly granular texture,porphyritic texture,disseminated texture,network texture,vein texture,metasomatic residual texture and inclusion texture.The useful iron mineral siderite has the coarsest dissemination particle size,the hematite particle size is uneven,and the magnetite crystal particle size is the finest.The distribution rates of siderite,hema-tite(including pseudo-hematite)and magnetite in the ore at-0.07 mm are 43.09%,55.76%and 68.81%,respectively.

关 键 词：赤铁矿 工艺矿物学 结构构造 嵌布特征 

分 类 号：P61[天文地球—矿床学]