排土场浸出过程中的渗流规律
|
摘要
在多孔介质地下水动力学的基础上,分析溶浸液在浸堆内的渗流状态,并提出渗流状态判据、各自状态下的渗流速度与水力梯度基本关系式。根据潜水层完整井流公式,推导不同流态下势函数与水力压头的关系式,并建立各自的势函数积分表达式。针对管注法浸出钻孔工程的典型布孔型式,抽象出最基本的抽注单元,并研究不同流态下各个抽注单元的单位面积浸出液总量公式,分析浸堆渗流规律。研究结果表明:溶浸液在浸堆中的渗流规律不完全符合达西定律,浸堆单位面积上的流量与注抽液孔内水力压头平方或立方差成正比,随着孔径的增大而上升,与两孔之间的距离的平方成反比;直线二点形钻孔布置方式的浸堆单位面积流量最大,而三角形的渗流量最小,直线三点形的渗流量介于两者之间。
Based on groundwater dynamics in porous media,seepage state about solution in leaching heap was analyzed,and its criterion and the basic relation between flow velocity and water head gradient in each state were put forward.According to the formula of fully penetrating well in free-water layer,the relation between potential function and water head was derived in different states,and those integral expressions of potential function were presented.Aimed at the(representative) arrangement model of drill engineering in pipe-pouring leaching method, the basic unit of pumping and pouring hole was abstracted,and the formula of solution gross in unit leaching area in different flow states was studied,and the seepage rule in leaching dump was analysed.The results show that Darcy′s law is not fully adapted to the seepage of solution in leaching dump.The flux in unit area is proportional to the difference of square or cube of water head between pouring hole and pumping hole,and enlarges with the aperture increasing and is inversely proportional to the square of distance between these two holes.The unit area flux of two-point arrangement mode of hole is the largest,while the one of triangular mode is the least,and the linear three-point mode is between them.
Based on groundwater dynamics in porous media,seepage state about solution in leaching heap was analyzed,and its criterion and the basic relation between flow velocity and water head gradient in each state were put forward.According to the formula of fully penetrating well in free-water layer,the relation between potential function and water head was derived in different states,and those integral expressions of potential function were presented.Aimed at the(representative) arrangement model of drill engineering in pipe-pouring leaching method, the basic unit of pumping and pouring hole was abstracted,and the formula of solution gross in unit leaching area in different flow states was studied,and the seepage rule in leaching dump was analysed.The results show that Darcy′s law is not fully adapted to the seepage of solution in leaching dump.The flux in unit area is proportional to the difference of square or cube of water head between pouring hole and pumping hole,and enlarges with the aperture increasing and is inversely proportional to the square of distance between these two holes.The unit area flux of two-point arrangement mode of hole is the largest,while the one of triangular mode is the least,and the linear three-point mode is between them.
引文
[1]Bartlett R W.Solution mining:Leaching and fluid re-covery of materials[M].Philadelphia:Gordon andBreach Science Publishers,1992.
[2]项则传.难选氧化铜矿堆浸-萃取-电积提铜的研究和实践[J].有色金属:选矿部分,2004(4):1 3.XIANG Ze-chuan.Research and practice of heap leac-hing-extraction-electrowining of refractory oxide cop-per ore[J].Nonferrous Metal:Mineral Processing,2004(4):1 3.
[3]徐茗臻.湿法炼铜技术在江西铜业公司的应用[J].湿法冶金,2000,19(4):72 75.XU Ming-zhen.Application of copper hydrometallur-gical process in JTCC[J].Hydrometallurgy of China,2000,19(4):72 75.
[4]查克兵.德兴铜矿堆浸生产影响因素的分析与探讨[J].采矿技术,2003,3(3):4 6.ZA Ke-bing.Analysis and discussions on factors thatleaching operations at Dexing copper[J].Ming Tech-nology,2003,3(3):4 6.
[5]刘久清.德兴铜矿湿法炼铜工艺现状及存在问题[J].湿法冶金,2001,20(3):123 127.LIU Jiu-qing.Status and problems of copper hydro-metallurgy in Dexing copper mine[J].Hydrometallur-gy of China,2001,20(3):123 127.
[6]陈喜山,梁晓春,熊为煜.堆浸工艺中渗流饱和区研究及意义[J].黄金,2000,21(8):30 32.CHEN Xi-shan,LIANG Xiao-chun,XIONG Wei-yu.Study on the infiltration saturated area in ore heap andits guiding significance to heap leaching process[J].Gold,2000,21(8):30 32.
[7]王洪江,吴爱祥,李青松.大型铜矿排土场浸出技术中几个亟待解决的关键问题[J].矿冶工程,2004,19(2):15 19.WANG Hong-jiang,WU Ai-xiang,LI Qing-song.Several key questions settled urgently on leaching tech-nology in large copper mine dump pit[J].Mining andMetallurgical Engineering,2004,19(2):15 19.
[8]吴爱祥,李青松,尹升华.改善高泥矿堆渗透性的机理研究[J].湘潭矿业学院学报,2003,18(4):1 5.WU Ai-xing,LI Qing-song,YIN Sheng-hua.Studyon the mechanism of improving the penetrability of thehigh-clay ore heaps[J].Journal of Xiangtan MiningInstitute,2003,18(4):1 5.
[9]邹佩麟,王惠英.溶浸采矿[M].长沙:中南工业大学出版社,1990.ZOU Pei-lin,WANG Hui-ying.Solution mining[M].Changsha:Central South University of TechnologyPress,1990.
[10]李青松,吴爱祥,姜立春,等.堆中布液浸出高泥矿堆的机理研究[J].矿冶工程,2003,23(2):23 26.LI Qing-song,WU Ai-xiang,JIANG Li-chun,et al.Study on the mechanism of heap leaching of high-clayore heaps with heap inside solution distribution[J].Mining and Metallurgical Engineering,2003,23(2):23 26.
[11]李壮阔,桂斌旺,段希祥.德兴铜矿堆浸厂的生产实践及技术研究[J].矿冶工程,2002,22(1):46 48.LI Zhuang-kuo,GUI Bin-wang,DUAN Xi-xiang.Production practice and technical study in heap leac-hing mill of Dexing copper mine[J].Mining andMetallurgical Engineering,2002,22(1):46 48.
[12]朱国山.祝家排土场堆浸排土台阶高度优化研究[J].金属矿山,2003(12):16 18.ZHU Guo-shan.Optimization research of benchheight of dump leaching at Zhujia dumping site[J].Metal Mine,2003(12):16 18.
[13]J.贝尔.多孔介质流体动力学[M].李竞生,译.北京:建筑工业出版社,1983.Bear J.Porous medium hydrodynamics[M].Li Jing-sheng,translates.Beijing:Building Industry Press,1983.
[14]R.A.弗里泽.地下水[M].吴静方,译.北京:地震出版社,1987.Freeze R A.Groundwater[M].Wu Jing-fang,translates.Beijing:Earthquake Press,1987.
[15]薜禹群.地下水动力学[M],北京:地质出版社,2001.XUE Yu-qun.Groundwater dynamics[M].Beijing:Geological Press,2001.
[16]徐天有,张晓宏,孟向一.堆石体渗透规律的试验研究[J].水利学报,1998(1):80 83.XU Tian-you,ZHANG Xiao-hong,MENG Xiang-yi.Analysis on seepage property of rockfill mass[J].Shuili Xuebao,1998(1):80 83.
[17]刘光尧.渗透系数概念发展的回顾[J].工程勘察,1997(2):34 38.LIU Guang-yao.Review on the development of con-ception of permeability coefficient[J].EngineeringReconnaissance,1997(2):34 38.
[18]王海峰,谭亚辉,杜运斌,等.原地浸出采铀井场工艺[M].北京:冶金工业出版社,2002.WANG Hai-feng,TAI Ya-hui,DU Yuan-bin,et al.The techniques of wall field in-situ leaching uranium[M].Beijing:Metallurgical Industry Press,2002.
[19]王西文.确定地浸钻孔的最佳间距的原则和方法[J].铀矿冶,1999,18(2):73 85.WANG Xi-wen.The principles and methods to defineoptimum drilling interval for in-situ leaching[J].Uranium Mining and Metallurgy,1999,18(2):7385.
[2]项则传.难选氧化铜矿堆浸-萃取-电积提铜的研究和实践[J].有色金属:选矿部分,2004(4):1 3.XIANG Ze-chuan.Research and practice of heap leac-hing-extraction-electrowining of refractory oxide cop-per ore[J].Nonferrous Metal:Mineral Processing,2004(4):1 3.
[3]徐茗臻.湿法炼铜技术在江西铜业公司的应用[J].湿法冶金,2000,19(4):72 75.XU Ming-zhen.Application of copper hydrometallur-gical process in JTCC[J].Hydrometallurgy of China,2000,19(4):72 75.
[4]查克兵.德兴铜矿堆浸生产影响因素的分析与探讨[J].采矿技术,2003,3(3):4 6.ZA Ke-bing.Analysis and discussions on factors thatleaching operations at Dexing copper[J].Ming Tech-nology,2003,3(3):4 6.
[5]刘久清.德兴铜矿湿法炼铜工艺现状及存在问题[J].湿法冶金,2001,20(3):123 127.LIU Jiu-qing.Status and problems of copper hydro-metallurgy in Dexing copper mine[J].Hydrometallur-gy of China,2001,20(3):123 127.
[6]陈喜山,梁晓春,熊为煜.堆浸工艺中渗流饱和区研究及意义[J].黄金,2000,21(8):30 32.CHEN Xi-shan,LIANG Xiao-chun,XIONG Wei-yu.Study on the infiltration saturated area in ore heap andits guiding significance to heap leaching process[J].Gold,2000,21(8):30 32.
[7]王洪江,吴爱祥,李青松.大型铜矿排土场浸出技术中几个亟待解决的关键问题[J].矿冶工程,2004,19(2):15 19.WANG Hong-jiang,WU Ai-xiang,LI Qing-song.Several key questions settled urgently on leaching tech-nology in large copper mine dump pit[J].Mining andMetallurgical Engineering,2004,19(2):15 19.
[8]吴爱祥,李青松,尹升华.改善高泥矿堆渗透性的机理研究[J].湘潭矿业学院学报,2003,18(4):1 5.WU Ai-xing,LI Qing-song,YIN Sheng-hua.Studyon the mechanism of improving the penetrability of thehigh-clay ore heaps[J].Journal of Xiangtan MiningInstitute,2003,18(4):1 5.
[9]邹佩麟,王惠英.溶浸采矿[M].长沙:中南工业大学出版社,1990.ZOU Pei-lin,WANG Hui-ying.Solution mining[M].Changsha:Central South University of TechnologyPress,1990.
[10]李青松,吴爱祥,姜立春,等.堆中布液浸出高泥矿堆的机理研究[J].矿冶工程,2003,23(2):23 26.LI Qing-song,WU Ai-xiang,JIANG Li-chun,et al.Study on the mechanism of heap leaching of high-clayore heaps with heap inside solution distribution[J].Mining and Metallurgical Engineering,2003,23(2):23 26.
[11]李壮阔,桂斌旺,段希祥.德兴铜矿堆浸厂的生产实践及技术研究[J].矿冶工程,2002,22(1):46 48.LI Zhuang-kuo,GUI Bin-wang,DUAN Xi-xiang.Production practice and technical study in heap leac-hing mill of Dexing copper mine[J].Mining andMetallurgical Engineering,2002,22(1):46 48.
[12]朱国山.祝家排土场堆浸排土台阶高度优化研究[J].金属矿山,2003(12):16 18.ZHU Guo-shan.Optimization research of benchheight of dump leaching at Zhujia dumping site[J].Metal Mine,2003(12):16 18.
[13]J.贝尔.多孔介质流体动力学[M].李竞生,译.北京:建筑工业出版社,1983.Bear J.Porous medium hydrodynamics[M].Li Jing-sheng,translates.Beijing:Building Industry Press,1983.
[14]R.A.弗里泽.地下水[M].吴静方,译.北京:地震出版社,1987.Freeze R A.Groundwater[M].Wu Jing-fang,translates.Beijing:Earthquake Press,1987.
[15]薜禹群.地下水动力学[M],北京:地质出版社,2001.XUE Yu-qun.Groundwater dynamics[M].Beijing:Geological Press,2001.
[16]徐天有,张晓宏,孟向一.堆石体渗透规律的试验研究[J].水利学报,1998(1):80 83.XU Tian-you,ZHANG Xiao-hong,MENG Xiang-yi.Analysis on seepage property of rockfill mass[J].Shuili Xuebao,1998(1):80 83.
[17]刘光尧.渗透系数概念发展的回顾[J].工程勘察,1997(2):34 38.LIU Guang-yao.Review on the development of con-ception of permeability coefficient[J].EngineeringReconnaissance,1997(2):34 38.
[18]王海峰,谭亚辉,杜运斌,等.原地浸出采铀井场工艺[M].北京:冶金工业出版社,2002.WANG Hai-feng,TAI Ya-hui,DU Yuan-bin,et al.The techniques of wall field in-situ leaching uranium[M].Beijing:Metallurgical Industry Press,2002.
[19]王西文.确定地浸钻孔的最佳间距的原则和方法[J].铀矿冶,1999,18(2):73 85.WANG Xi-wen.The principles and methods to defineoptimum drilling interval for in-situ leaching[J].Uranium Mining and Metallurgy,1999,18(2):7385.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心