摘要
在分析巴润矿贫化原因基础上,结合矿山生产实际,对巴润露天矿矿岩交界处的贫化率进行控制,提出了通过穿孔取样的方式精准确定矿岩边界、矿岩爆破分离、混合爆堆中矿岩石边界的精准识别及优化铲装技术等措施,有效降低了矿岩混杂情况,贫化率降到了2%以下,回采指标明显改善。
Based on the analysis of ore dilution in Barun mine,the dilution rate at the junction of ore and rock in Barun open⁃pit mine was controlled.With the actual production into consideration,some controlling measures are put forward for the mine,including accurately identifying ore⁃rock boundary by drilling and sampling,separating ore and rock by blasting,accurately identifying the ore⁃rock boundary in muck⁃pile by blasting,and optimizing shovel loading operation among others.As a result,less waste rock has been mixed with ore,leading to the ore dilution down to below 2%.It is shown that the rate of extraction can be obviously improved.
作者
宋德林
王春旺
郭建新
王德胜
付明宇
赵剑
SONG Delin;WANG Chunwang;GUO Jianxin;WANG Desheng;FU Mingyu;ZHAO Jian(School of Mining and Coal,Inner Mongolia University of Science and Technology,Baotou 014010,Inner Mongolia,China;Barun Mining Branch of Inner Mongolia Baotou Steel Union Co Ltd,Baotou 014080,Inner Mongolia,China;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《矿冶工程》
CAS
北大核心
2024年第2期18-21,26,共5页
Mining and Metallurgical Engineering
基金
内蒙古自治区直属高校基本科研业务费项目。
关键词
露天矿山
穿孔取样
爆破分离
矿岩边界
精准识别
铲装优化
贫化率
岩石边界
回采指标
open⁃pit mine
drilling and sampling
separation by blasting
ore⁃rock boundary
accurate identification
shovel⁃loading optimization
dilution rate
rock boundary
rate of extraction
