松湖铁矿无底柱分段崩落法采场结构参数优化
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摘要
为改善松湖铁矿出矿贫化率高的问题,基于初选采场结构参数,采用编组立体放矿试验对初选参数进行了优选,回采效果工业试验结果表明:崩矿步距4m进路的实践应用效果并不理想,崩矿步距3.2m能达到较高的矿石回采目标,与排距为1.8,2.2m相比,其矿石总回采率提高了约11个百分点,说明优化结构参数与现场工业实验相结合具有推广有效性。
In order to solve the problem of high dilution rate in Songhu Mine,the primary parameters were optimized by stereoscopic ore-drawing test based on the primary stope structure parameters.The industrial test results showed that the practical application effect of caving distance with 4 mwas unsatisfied and the caving distance with 3.2 mcould achieve high ore recovery.Compared with 1.8 mand 2.2 mof array pitch,the total ore recovery rate of the caving distance with 3.2 mcould be increased by about 11 percentage points.It was demonstrated that the combination of optimized structure parameters and field industrial experiments was effective to promote in iron mines.
In order to solve the problem of high dilution rate in Songhu Mine,the primary parameters were optimized by stereoscopic ore-drawing test based on the primary stope structure parameters.The industrial test results showed that the practical application effect of caving distance with 4 mwas unsatisfied and the caving distance with 3.2 mcould achieve high ore recovery.Compared with 1.8 mand 2.2 mof array pitch,the total ore recovery rate of the caving distance with 3.2 mcould be increased by about 11 percentage points.It was demonstrated that the combination of optimized structure parameters and field industrial experiments was effective to promote in iron mines.
引文
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[14]李海亮.无底柱分段崩落法采场结构参数优化研究[J].中国矿山工程,2017,46(1):50-52.
[15]刘兴国.放矿理论基础[M].北京:冶金工业出版社,1995.
[16]张海峰,池秀文.颗粒流法在无底柱分段崩落法结构参数优化中的应用[J].采矿技术,2018,18(6):19-22.
[17]于坤鹏,任凤玉,张东杰.锡林浩特萤石矿高端壁无底柱分段崩落法[J].金属矿山,2017(5):44-48.
[18]杨宫印,陈玉明,王小勇.马鞍山2~#矿体无底柱分段崩落法结构参数优化研究[J].矿冶工程,2017,37(2):24-27.
[19]行鹏飞,时磊,汪龙,等.某铁矿无底柱分段崩落法崩矿步距优化[J].中国矿业,2018(12):118-123.
[2]简永军,陈玉明.某铁矿无底柱分段崩落法的参数优化研究[J].中国锰业,2016,34(4):57-60+67.
[3]高英勇,任海龙,李光,等.眼前山铁矿中深孔爆破结构参数研究[J].矿业研究与开发,2018,38(10):6-10.
[4]陈勃,陈星明,潘锋,等.桦树沟V矿体无底柱分段崩落法开采技术分析[J].有色金属(矿山部分),2018,70(3):24-27.
[5] Ryzhkov Y A,Ermakova I A.Selection of Stope Shape in Sublevel Caving Systems[J].Journal of Mining Science,2002,38(6):596-600.
[6] William H R K.Sublevel caving-past and future[C]//Proceedings of 5th International Conference and Exhibition on Mass Mining,2008:107-132.
[7] Tao G,Yang S,Ren F.Test on Granules Flow Parameters of Ore Drawing With Stochastic Medium Theory[J].Chinese Journal of Rock Mechanics&Engineering,2009,28:3464-3470.
[8]刘金山.石人沟铁矿无底柱分段崩落法工艺参数的研究[D].唐山:河北理工大学,2009.
[9]张国联,邱景平,宋守志.无底柱分段崩落法最佳结构参数的确定方法[J].中国矿业,2003(12):51-53.
[10]陈诗墨.大结构参数无底柱分段崩落法放矿方式与结构参数研究[D].绵阳:西南科技大学,2016.
[11]行鹏飞,时磊,汪龙,等.某铁矿无底柱分段崩落法崩矿步距优化[J].中国矿业,2018(12):118-123.
[12]张秀凤,陶干强,朱忠华,等.分段崩落法斜壁放矿损失贫化机理研究[J].矿业研究与开发,2018,38(4):1-5.
[13]唐小龙,黄滚,时磊,等.某铁矿采场结构参数优化[J].现代矿业,2017(9):77-79.
[14]李海亮.无底柱分段崩落法采场结构参数优化研究[J].中国矿山工程,2017,46(1):50-52.
[15]刘兴国.放矿理论基础[M].北京:冶金工业出版社,1995.
[16]张海峰,池秀文.颗粒流法在无底柱分段崩落法结构参数优化中的应用[J].采矿技术,2018,18(6):19-22.
[17]于坤鹏,任凤玉,张东杰.锡林浩特萤石矿高端壁无底柱分段崩落法[J].金属矿山,2017(5):44-48.
[18]杨宫印,陈玉明,王小勇.马鞍山2~#矿体无底柱分段崩落法结构参数优化研究[J].矿冶工程,2017,37(2):24-27.
[19]行鹏飞,时磊,汪龙,等.某铁矿无底柱分段崩落法崩矿步距优化[J].中国矿业,2018(12):118-123.