废石-尾砂高浓度充填料浆流变参数的确定
|
摘要
以金川矿区废石与尾砂作为骨料,通过级配分析选用最优配合比制备了高浓度料浆。采用法国Rheo CAD500型流变仪进行了流变实验,获取了流变曲线。对曲线的变化过程及现有的流变模型进行分析,结果表明,料浆的流变特性是多种模型复合的综合体现,现有的流变模型不能直接用于废石-尾砂高浓度料浆流变参数的回归。故进一步对流变曲线的变化机理及过程进行分析,确定了废石-尾砂高浓度料浆流变曲线的分析方法及流变模型,最终获取相应的流变参数。研究结果可为矿山应用废石-尾砂高浓度料浆提供可靠依据。
With the waste rock and sand tailings in Jinchuan Mine as aggregate,a kind of slurry with high concentration was prepared with optimal mix proportioning based on grading analysis. The rheological experiment was performed by using RheoCAD500 Rheometer,from which rheological curves were obtained. An analysis of variation of curves and the existing rheological model showed that the rheological properties of such slurry comprehensively represented several kinds of model,and the existing rheological model can't be directly used for the regression of rheological parameters of such high-concentrated slurry with waste rock and sand tailings. Thus,the variation mechanism and process of rheological curves were furtherly analyzed,so as to choose an analysis method for the rheological curves and rheological model.Finally,the corresponding rheological parameters were obtained. This research can provide some reference for the application of such kind of slurry backfill consisting of waste rock and sand tailings.
With the waste rock and sand tailings in Jinchuan Mine as aggregate,a kind of slurry with high concentration was prepared with optimal mix proportioning based on grading analysis. The rheological experiment was performed by using RheoCAD500 Rheometer,from which rheological curves were obtained. An analysis of variation of curves and the existing rheological model showed that the rheological properties of such slurry comprehensively represented several kinds of model,and the existing rheological model can't be directly used for the regression of rheological parameters of such high-concentrated slurry with waste rock and sand tailings. Thus,the variation mechanism and process of rheological curves were furtherly analyzed,so as to choose an analysis method for the rheological curves and rheological model.Finally,the corresponding rheological parameters were obtained. This research can provide some reference for the application of such kind of slurry backfill consisting of waste rock and sand tailings.
引文
[1]乔登攀,程纬华,张磊,等.现代采矿理念与充填采矿[J].有色金属科学与工程,2011,2(2):7-14.
[2]张海波,宋卫东.评述国内外充填采矿技术发展现状[J].中国矿业,2009,18(12):59-62.
[3]翟永刚,吴爱祥,王洪江,等.全尾砂膏体充填临界质量分数[J].北京科技大学学报,2011,33(7):795-799.
[4]蔡嗣经,黄刚,吴迪,等.尾砂充填料浆流变性能模型与试验研究[J].东北大学学报(自然科学版),2015,36(6):882-886.
[5]雷大星,张耀平,王广丽.基于流变特性试验的胶结充填体优化配比研究[J].矿业研究与开发,2016,36(9):31-33.
[6]马浩吉,王贻明,王元青,等.藏甲玛铜矿全尾砂膏体充填料浆流变特性研究[J].金属矿山,2017(11):42-47.
[7]翟永刚,吴爱祥,王洪江,等.全尾砂膏体料浆的流变特性研究[J].金属矿山,2010(12):30-32.
[8]蔡嗣经,黄刚,吴迪,等.白象山铁矿全尾砂充填料浆的流变力学特性研究[J].采矿技术,2013,13(3):17-19.
[9]Jau W C,Yang C T.Development of a modified concrete rheometer to measure the rheological behavior of conventional and self-consolidating concretes[J].Cement&Concrete Composites,2010,32(6):450-460.
[10][意]Mario Collepardi.混凝土新技术[M].北京:中国建筑工业出版社,2008.
[11]张修香,乔登攀.废石-尾砂高浓度料浆的流变特性及屈服应力预测模型[J].安全与环境学报,2015,15(4):278-283.
[12]Boger D V.Rheology and the resource industries[J].Chemical Engineering Science,2009,64(22):4525-4536.
[13]吴爱祥,焦华喆,王洪江,等.膏体尾矿屈服应力检测及其优化[J].中南大学学报(自然科学版),2013,44(8):3370-3376.
[14]张修香.矿山废石-尾砂高浓度充填料浆的流变特性及多因素影响规律研究[D].昆明:昆明理工大学国土资源工程学院,2015.
[2]张海波,宋卫东.评述国内外充填采矿技术发展现状[J].中国矿业,2009,18(12):59-62.
[3]翟永刚,吴爱祥,王洪江,等.全尾砂膏体充填临界质量分数[J].北京科技大学学报,2011,33(7):795-799.
[4]蔡嗣经,黄刚,吴迪,等.尾砂充填料浆流变性能模型与试验研究[J].东北大学学报(自然科学版),2015,36(6):882-886.
[5]雷大星,张耀平,王广丽.基于流变特性试验的胶结充填体优化配比研究[J].矿业研究与开发,2016,36(9):31-33.
[6]马浩吉,王贻明,王元青,等.藏甲玛铜矿全尾砂膏体充填料浆流变特性研究[J].金属矿山,2017(11):42-47.
[7]翟永刚,吴爱祥,王洪江,等.全尾砂膏体料浆的流变特性研究[J].金属矿山,2010(12):30-32.
[8]蔡嗣经,黄刚,吴迪,等.白象山铁矿全尾砂充填料浆的流变力学特性研究[J].采矿技术,2013,13(3):17-19.
[9]Jau W C,Yang C T.Development of a modified concrete rheometer to measure the rheological behavior of conventional and self-consolidating concretes[J].Cement&Concrete Composites,2010,32(6):450-460.
[10][意]Mario Collepardi.混凝土新技术[M].北京:中国建筑工业出版社,2008.
[11]张修香,乔登攀.废石-尾砂高浓度料浆的流变特性及屈服应力预测模型[J].安全与环境学报,2015,15(4):278-283.
[12]Boger D V.Rheology and the resource industries[J].Chemical Engineering Science,2009,64(22):4525-4536.
[13]吴爱祥,焦华喆,王洪江,等.膏体尾矿屈服应力检测及其优化[J].中南大学学报(自然科学版),2013,44(8):3370-3376.
[14]张修香.矿山废石-尾砂高浓度充填料浆的流变特性及多因素影响规律研究[D].昆明:昆明理工大学国土资源工程学院,2015.