全尾砂充填性能试验研究
|
摘要
针对拟使用充填法将深部矿产资源采出的某矿山,为研究充填性能,取其尾砂进行试验,通过探索充填料浆性能在灰砂比和质量浓度有差异时的变化情况,判断灰砂比和质量浓度对充填料浆性能的影响。采用极差分析法获取两者影响充填料浆性能的主次关系,明确充填料浆配比的适合范畴,随之建立代表料浆性能参数和两因素之间的回归方程。由试验可得:在灰砂比1∶4～1∶12、料浆浓度66%～74%的情况下,料浆流动性能受质量浓度的影响较灰砂比大,但影响充填体强度的关键要素还是灰砂比。根据该矿山的生产需要及室内试验,再联系灰砂比、浓度与充填料浆性能参数间的回归方程,推荐选择最佳参数,灰砂比1∶8,料浆浓度72%。
Based on the research in a mine in which backfilling mining method is planned to be applied,the backfilling performance of the mill-tailing is studied through a series of backfilling experiments,in terms of the impact of various cement-sand ratio and concentration.The range analysis method was used to explore the dominant element between the cement-sand ratio and concentration in the aspecst of determining the behavior of the backfilling slurry.The suitable range of the filling slurry ratio was determined,and the regression equation representing the relationship between the behavior of slurry performance parameters and the other two factors was established.According to the experiments,when the cement-sand ratio is between 1∶4 and 1∶12 and the slurry concentration is between 66% and 74%,the liquidity of the slurry is mainly determined by the mass concentration,but the strength of the backfills is still determined by the cement-sand ratio.In order to meet the demands of production(the slurry is relatively easy to transport,has higher strength,and can guarantee the safety and efficiency of the mine),it is recommended that the best parameters are cement-sand ratio of 1∶8 and slurry concentration of 72%.
Based on the research in a mine in which backfilling mining method is planned to be applied,the backfilling performance of the mill-tailing is studied through a series of backfilling experiments,in terms of the impact of various cement-sand ratio and concentration.The range analysis method was used to explore the dominant element between the cement-sand ratio and concentration in the aspecst of determining the behavior of the backfilling slurry.The suitable range of the filling slurry ratio was determined,and the regression equation representing the relationship between the behavior of slurry performance parameters and the other two factors was established.According to the experiments,when the cement-sand ratio is between 1∶4 and 1∶12 and the slurry concentration is between 66% and 74%,the liquidity of the slurry is mainly determined by the mass concentration,but the strength of the backfills is still determined by the cement-sand ratio.In order to meet the demands of production(the slurry is relatively easy to transport,has higher strength,and can guarantee the safety and efficiency of the mine),it is recommended that the best parameters are cement-sand ratio of 1∶8 and slurry concentration of 72%.
引文
[1]周爱民.矿山废料胶结充填[M].北京:冶金工业出版社,2010.ZHOU Aimin.Consolidation and filling of mine waste[M].Beijing:Metallurgical Industry Press,2010.
[2]于润沧.我国胶结充填工艺发展的技术创新[J].中国矿山工程,2010(5):1-3.YU Runcang.Development and innovation of cemented filling technology in China[J].China Mine Engineering,2010(5):1-3.
[3]张政,杨志强,高谦.金川矿磷石膏基早强型充填胶凝材料配方试验[J].化工矿物与加工,2016(1):31-35.ZHANG Zheng,YANG Zhiqiang,GAO Qian.Experiment of filling cementitious material formula based on phosphgypsum with high early-age strength in Jinchuan Mine[J].Industrial Minerals&Processing,2016(1):31-35.
[4]孙庆巍,朱涵,崔正龙.粉煤灰-煤矸石基胶结充填材料制备与性能研究[J].中国安全科学学报,2012,22(11):74-80.SUN Qingwei,ZHU Han,CUI Zhenglong.Preparation and performance study of cemented filling material based on fly ash and coal gangue[J].China Safety Science Journal,2012,22(11):74-80.
[5]史俊伟,魏中举,刘庆龙,等.基于正交试验的煤矿安全开采充填材料配比优化研究[J].中国安全科学学报,2011,21(6):111-115.SHI Junwei,WEI Zhongju,LIU Qinglong,et al.Research on proportion pptimizing of paste filling material based on orthogonal experiment in coal mine[J].China Safety Science Journal,2011,21(6):111-115.
[6]赵国彦,马举,彭康,等.基于响应面法的高寒矿山充填配比优化[J].北京科技大学学报,2013,35(5):559-565.ZHAO Guoyan,MA Ju,PENG Kang,et al.Mix ratio optimization of alpine mine backfill based on the response surface method[J].Journal of University of Science and Technology Beijing,2013,35(5):559-565.
[7]吴爱祥,孙伟,王洪江,等.塌陷区全尾砂-废石混合处置体抗剪强度特性试验研究[J].岩石力学与工程学报,2013,32(5):917-925.WU Aixiang,SUN Wei,WANG Hongjiang,et al.Experimental research on shear behavior of subsidence backfill body mixed by unclassified tailings and waste rocks[J].Chinese Journal of Rock Mechanics and Engineering,2013,32(5):917-925.
[8]张海波,宋卫东,许英霞.充填采矿技术应用发展及存在问题研究[J].黄金,2010,31(1):23-25.ZHANG Haibo,SONG Weidong,XU Yingxia.Application development and existing problems of backfill mining technology[J].Gold,2010,31(1):23-25.
[9]万海涛,方勇,肖广哲,等.充填采矿法的应用现状及发展方向[J].世界有色金属,2009(8):26-28.WAN Haitao,FANG Yong,XIAO Guangzhe,et al.Application status and development direction of filling mining method[J].World Nonferrous Metals,2009(8):26-28.
[10]梁冰,董擎,姜利国,等.铅锌尾砂胶结充填材料优化配比正交试验[J].中国安全科学学报,2015,25(12):81-86.LIANG Bing,DONG Qing,JIANG Liguo,et al.Orthogonal experiments for lead-zinc tailingscemented paste backfill material optimal matching scheme[J].China Safety Science Journal,2015,25(12):81-86.
[11]高峰,王巧莉,彭先艳,等.基于指标满意度的充填配比正交优化试验[J].福州大学学报(自然科学版),2015,43(3):422-427.GAO Feng,WANG Qiaoli,PENG Xianyan,et al.Orthogonal optimization test of backfill mix ratio based on index satisfaction[J].Journal of Fuzhou University(Natural Science Edition),2015,43(3):422-427.
[12]李地元,孙志成,蹇明星,等.磷石膏废石胶结充填体强度特性正交试验研究[J].地下空间与工程学报,2017,13(1):29-34.LI Diyuan,SUN Zhicheng,JIAN Mingxing,et al.Strength characteristics of cemented backfilling with phosphogypsum and mullock based on orthogonal experiment[J].Chinese Journal of Underground Space and Engineering,2017,13(1):29-34.
[2]于润沧.我国胶结充填工艺发展的技术创新[J].中国矿山工程,2010(5):1-3.YU Runcang.Development and innovation of cemented filling technology in China[J].China Mine Engineering,2010(5):1-3.
[3]张政,杨志强,高谦.金川矿磷石膏基早强型充填胶凝材料配方试验[J].化工矿物与加工,2016(1):31-35.ZHANG Zheng,YANG Zhiqiang,GAO Qian.Experiment of filling cementitious material formula based on phosphgypsum with high early-age strength in Jinchuan Mine[J].Industrial Minerals&Processing,2016(1):31-35.
[4]孙庆巍,朱涵,崔正龙.粉煤灰-煤矸石基胶结充填材料制备与性能研究[J].中国安全科学学报,2012,22(11):74-80.SUN Qingwei,ZHU Han,CUI Zhenglong.Preparation and performance study of cemented filling material based on fly ash and coal gangue[J].China Safety Science Journal,2012,22(11):74-80.
[5]史俊伟,魏中举,刘庆龙,等.基于正交试验的煤矿安全开采充填材料配比优化研究[J].中国安全科学学报,2011,21(6):111-115.SHI Junwei,WEI Zhongju,LIU Qinglong,et al.Research on proportion pptimizing of paste filling material based on orthogonal experiment in coal mine[J].China Safety Science Journal,2011,21(6):111-115.
[6]赵国彦,马举,彭康,等.基于响应面法的高寒矿山充填配比优化[J].北京科技大学学报,2013,35(5):559-565.ZHAO Guoyan,MA Ju,PENG Kang,et al.Mix ratio optimization of alpine mine backfill based on the response surface method[J].Journal of University of Science and Technology Beijing,2013,35(5):559-565.
[7]吴爱祥,孙伟,王洪江,等.塌陷区全尾砂-废石混合处置体抗剪强度特性试验研究[J].岩石力学与工程学报,2013,32(5):917-925.WU Aixiang,SUN Wei,WANG Hongjiang,et al.Experimental research on shear behavior of subsidence backfill body mixed by unclassified tailings and waste rocks[J].Chinese Journal of Rock Mechanics and Engineering,2013,32(5):917-925.
[8]张海波,宋卫东,许英霞.充填采矿技术应用发展及存在问题研究[J].黄金,2010,31(1):23-25.ZHANG Haibo,SONG Weidong,XU Yingxia.Application development and existing problems of backfill mining technology[J].Gold,2010,31(1):23-25.
[9]万海涛,方勇,肖广哲,等.充填采矿法的应用现状及发展方向[J].世界有色金属,2009(8):26-28.WAN Haitao,FANG Yong,XIAO Guangzhe,et al.Application status and development direction of filling mining method[J].World Nonferrous Metals,2009(8):26-28.
[10]梁冰,董擎,姜利国,等.铅锌尾砂胶结充填材料优化配比正交试验[J].中国安全科学学报,2015,25(12):81-86.LIANG Bing,DONG Qing,JIANG Liguo,et al.Orthogonal experiments for lead-zinc tailingscemented paste backfill material optimal matching scheme[J].China Safety Science Journal,2015,25(12):81-86.
[11]高峰,王巧莉,彭先艳,等.基于指标满意度的充填配比正交优化试验[J].福州大学学报(自然科学版),2015,43(3):422-427.GAO Feng,WANG Qiaoli,PENG Xianyan,et al.Orthogonal optimization test of backfill mix ratio based on index satisfaction[J].Journal of Fuzhou University(Natural Science Edition),2015,43(3):422-427.
[12]李地元,孙志成,蹇明星,等.磷石膏废石胶结充填体强度特性正交试验研究[J].地下空间与工程学报,2017,13(1):29-34.LI Diyuan,SUN Zhicheng,JIAN Mingxing,et al.Strength characteristics of cemented backfilling with phosphogypsum and mullock based on orthogonal experiment[J].Chinese Journal of Underground Space and Engineering,2017,13(1):29-34.