某铁矿损失贫化控制方法研究  

Research on control method of loss and dilution of an iron ore

作　　者：张东杰 王健多 郑有伟 ZHANG Dongjie;WANG Jianduo;ZHENG Youwei(Mining and Coal School,Inner Mongolia University of Science and Technology,Baotou 014010,China;PetroChina Liaohe Oilfield Company,Panjin 124010,China)

机构地区：[1]内蒙古科技大学矿业与煤炭学院,内蒙古包头014010 [2]中国石油辽河油田公司,辽宁盘锦124010

出　　处：《内蒙古科技大学学报》2022年第1期17-21,共5页Journal of Inner Mongolia University of Science and Technology

基　　金：内蒙古自治区自然科学基金资助项目(2021BS05011).

摘　　要：针对某铁矿缓倾斜厚大矿体开采中矿石损失贫化大等问题,文章从采场结构参数优化及残矿回收角度进行了系统研究.确定回采进路间距由原来的8 m改为10 m,崩矿步距取1.8 m,回收率提高了4.5%,贫化率降低了2.4%;给出了残矿回收方法,共回收残留矿量约6万t,实现了该矿开采过程中损失贫化的有效控制.Aiming at the problem of large ore loss and dilution in the mining of a gently inclined thick ore body in an iron mine,a systematic study was carried out from the perspective of stope structure parameter optimization and residual ore recovery.The distance between the mining access was changed from the original 8 m to 10 m,the ore collapse step was 1.8 m,the recovery rate was increased by 4.5%,and the dilution rate was reduced by 2.4%.The method of recovering residual ore was presented,and a total of about 60,000 tons of residual ore was recovered,which realized the effective control of the loss and dilution in the mining process.

关 键 词：缓倾斜厚矿体 结构参数优化 损失贫化控制 残矿回收 

分 类 号：TD853[矿业工程—金属矿开采]