中深孔崩矿崩落法在下垄钨业的应用

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英文篇名：The Application of Mid-deep Hole Caving Mining Method in Xialong Tungsten Industry 作者：叶际寰 ; 李春 ; 古和成 ; 王志聪 ; 叶光祥 英文作者：YE Jihuan;LI Chun;GU Hecheng;WANG Zhicong;YE Guangxiang;Jiangxi Xialong Tungsten Industry Co., Ltd.;Ganzhou Nonferrous Metallurgy Research Institute; 关键词：矿脉带 ; 难采 ; 崩落法 ; 回采工艺 ; 挤压爆破 ; 参数优化 英文关键词：metal veins;;difficult mining;;caving mining method;;backstopping technology;;squeeze blasting;;parameter optimization 中文刊名：中国钨业 英文刊名：China Tungsten Industry 机构：江西下垄钨业有限公司;赣州有色冶金研究所; 出版日期：2019-04-26 出版单位：中国钨业 年：2019 期：02 语种：中文; 页：20-26 页数：7 CN：11-3236/TF ISSN：1009-0622 分类号：TD864;TD853.36

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.

引文

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