观天厂铜矿倾斜薄矿体开采工艺研究
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摘要
针对观天厂铜矿倾斜薄矿体回采时采场出矿的疑难问题,对开采工作线沿矿体倾斜下向推进的原采矿方案改进为沿矿体伪倾斜面向上阶梯式回采的优化采矿方案;介绍了倾斜矿体沿伪倾斜面布置采场时,采场伪倾斜面与矿体走向之间夹角的确定方法;并在矿山进行了实践和推广运用。结果表明:该采矿工艺可将凿岩、支护和运搬3个工序同时进行作业,可大幅提高采矿效率,确保采场出矿的安全性,减少采准工程量,采矿成本降低了14.1元/t,具有较高的实用价值与经济效益。
Aiming at the problems existing in ore drawing of inclined thin orebody in Guantianchang copper mine,the original mining scheme with stoping downward along the inclined orebody was transformed into the optimized mining scheme with stepped stoping upward along the pseudo inclined plane.The method of determining the angle between the pseudo inclined plane and the direction of ore body was introduced when the stope was arranged along the pseudo inclined plane; This method was practically applied in mines.The results showed that the optimized mining process simultaneously jointed drilling with supporting and handling processes.So it can greatly improve the mining efficiency,ensure the safety of the mine stope,reduce mining engineering quantity,and lowered the mining cost by 14.1 yuan/t,with higher practical value and economic benefit.
Aiming at the problems existing in ore drawing of inclined thin orebody in Guantianchang copper mine,the original mining scheme with stoping downward along the inclined orebody was transformed into the optimized mining scheme with stepped stoping upward along the pseudo inclined plane.The method of determining the angle between the pseudo inclined plane and the direction of ore body was introduced when the stope was arranged along the pseudo inclined plane; This method was practically applied in mines.The results showed that the optimized mining process simultaneously jointed drilling with supporting and handling processes.So it can greatly improve the mining efficiency,ensure the safety of the mine stope,reduce mining engineering quantity,and lowered the mining cost by 14.1 yuan/t,with higher practical value and economic benefit.
引文
[1]采矿手册编辑委员会.采矿手册[M].4卷.北京:冶金工业出版社,2005.Editorial Committee of Mining Manual.Mining Manual[M].Vol 4.Beijing:Metallurgical Industry Press,2005.
[2]林友,王连森,况世华,等.蚂蚁锌矿伪倾斜削壁充填法优化[J].矿业研究与开发,2013,33(2):1-4.Lin You,Wang Liansen,Kuang Shihua,et al.Optimization of pseudo inclined waste-lifting stoping Mayi Zinc Mine[J].Mining Research and Development,2013,33(2):1-4.
[3]夏建波,叶加冕,林友.王家寨铜矿缓倾斜极薄矿体开采研究[J].矿业研究与开发,2016,36(1):15-18.Xia Jianbo,Ye Jiamian,Lin You.Research on mining gently-inclined and extremely-thin orebody in Wangjiazhai Copper Mine[J].Mining Research and Development,2016,36(1):15-18.
[4]林友,叶加冕,王育军,等.某铁矿留矿与阶段空场联合采矿法应用[J].昆明冶金高等专科学校学报,2013,29(3):6-10.Lin You,Ye Jiamian,Wang Yujun,et al.Application of shrinkage&block stoping method in a iron mine[J].Journal of Kunming Metallurgy College,2013,29(3):6-10.
[5]采矿设计手册编辑部.采矿设计手册:矿床开采卷[M].北京:中国建筑工业出版社,1987.Editorial Office of Mining Design Manual.Handbook of Mining Design:Mining Part[M].Beijing:China Building Industry Press,1987.
[2]林友,王连森,况世华,等.蚂蚁锌矿伪倾斜削壁充填法优化[J].矿业研究与开发,2013,33(2):1-4.Lin You,Wang Liansen,Kuang Shihua,et al.Optimization of pseudo inclined waste-lifting stoping Mayi Zinc Mine[J].Mining Research and Development,2013,33(2):1-4.
[3]夏建波,叶加冕,林友.王家寨铜矿缓倾斜极薄矿体开采研究[J].矿业研究与开发,2016,36(1):15-18.Xia Jianbo,Ye Jiamian,Lin You.Research on mining gently-inclined and extremely-thin orebody in Wangjiazhai Copper Mine[J].Mining Research and Development,2016,36(1):15-18.
[4]林友,叶加冕,王育军,等.某铁矿留矿与阶段空场联合采矿法应用[J].昆明冶金高等专科学校学报,2013,29(3):6-10.Lin You,Ye Jiamian,Wang Yujun,et al.Application of shrinkage&block stoping method in a iron mine[J].Journal of Kunming Metallurgy College,2013,29(3):6-10.
[5]采矿设计手册编辑部.采矿设计手册:矿床开采卷[M].北京:中国建筑工业出版社,1987.Editorial Office of Mining Design Manual.Handbook of Mining Design:Mining Part[M].Beijing:China Building Industry Press,1987.