中深孔崩矿崩落法在下垄钨业的应用  

The Application of Mid-deep Hole Caving Mining Method in Xialong Tungsten Industry

作　　者：叶际寰 李春[2] 古和成 王志聪 叶光祥 YE Jihuan;LI Chun;GU Hecheng;WANG Zhicong;YE Guangxiang(Jiangxi Xialong Tungsten Industry Co.,Ltd.,Dayu 341500,Jiangxi,China;Ganzhou Nonferrous Metallurgy Research Institute,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西下垄钨业有限公司,江西大余341500 [2]赣州有色冶金研究所,江西赣州341000

出　　处：《中国钨业》2019年第2期16-22,共7页China Tungsten Industry

摘　　要：针对左拔矿区南组属难采的密集型矿脉带,根据其复杂的开采技术条件,优化选择中深孔崩矿崩落法开采,确定了采场结构、工程布置和工艺流程,优先考虑排距、孔底距等影响爆破效果的主要参数,控制矿石爆破大块率,提高采装运效率,降低损失与贫化率,使矿石成本比原留矿法更低。在复杂空区群下实现了采矿方法转型,为充分利用不可再生的宝贵资源,奠定了坚实基础,对类似矿山具有借鉴意义。In regard to the difficulties and complex conditions for intensive metal veins mining in south part of Zuoba mining area,mid-deep hole caving mining method is selected.Stope structure,engineering arrangement pattern and technological processes are determined.Main parameters,such as the space and distance from the hole-bottom,which influence blasting effect are optimized.Its ore production cost is lower than that of original shrinkage method by controlling explosive specific charge,improving the efficiency of mining,ore-drawing as well as transport,and reducing loss and depletion rates.The transformation of mining method is achieved under the complex empty cluster,which makes a solid foundation for making full use of non-renewable and valuable resources.It's also a useful reference for similar mines.

关 键 词：矿脉带 难采 崩落法 回采工艺 挤压爆破 参数优化 

分 类 号：TD853.36[矿业工程—金属矿开采]