对司家营铁矿矿石的化学成分、矿物组成、嵌布特征、粒度及结构构造等工艺矿物学特征进行了详细的研究.结果显示,矿石可利用组分主要为Fe；铁矿物主要由赤(褐)铁矿和少量磁铁矿组成；脉石矿物主要为石英和云母,其次为角闪石、绿泥石；铁矿物平均嵌布粒度为0.116 mm;铁矿物与脉石矿物的关系主要为毗连和镶嵌结构.结合矿石化学分析和镜下鉴定结果,证实闪石类矿物与磁性铁有着密切关系.根据矿石工艺矿物学研究结果,该区域矿石可划分为易解离易选、易解离难选、难解离难选等3种工艺类型,并分析了每种类型矿石的特征及选矿影响因素.%Conducted systematically investigations to the chemical composition, mineral composition, embedded features, grain size,texture and structure of ores from sijiaying Iron Ore Mine. The research result indicated that the available element is Fe; the main components of iron ore content is hematite and magnetite; gangue mineral is quartz primarily, and then mica,hornblende and chlorite;the average grain size is 0. 116 mm;the relationship between gangue minerals and iron minerals are mainly adjacent and mosaic structure. Combined with the chemical analysis and the microscopic identification results, it is confirmed that amphibole minerals have a close relationship with magnetic iron. Summarizing the technological mineralogy investigation,the iron ores can be divided into three technological types; easy to disintegrate and easy to selection, easy to disintegrate and hard to beneficiate, hard to disintegrate and hard to beneficiate. The typical characteristics and dressing influence factors have also been analysed for each type.
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