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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (1): 64-73.doi: 10.11872/j.issn.1005-2518.2018.01.064

• 采选技术与矿山管理 • 上一篇    下一篇

立式砂仓尾砂体积分数随砂仓高度变化规律研究

任伟成1,2,乔登攀3,周志伟4   

  1. 1.华北理工大学矿业工程学院,河北唐山063009;
    2.华北理工大学河北省矿业开发与安全技术重点实验室,河北唐山063009;
    3.昆明理工大学国土资源与工程学院,云南昆明650093;
    4.鞍山五矿陈台沟矿业有限公司,辽宁鞍山144044
  • 收稿日期:2017-07-31 修回日期:2017-10-31 出版日期:2018-02-28 发布日期:2018-05-19
  • 作者简介:任伟成(1988-),男,吉林安图人,博士,讲师,从事充填理论与工艺研究工作。renweicheng0502@163.com
  • 基金资助:

    国家自然科学基金项目“地下矿山废石-全尾砂高浓度管输充填应用基础研究”(编号:51164016)资助

Research on the Change Law of Volume Fraction of Tailings with Tailings Silo Height in Vertical Tailings Silo

REN Weicheng 1,2,QIAO Dengpan 3,ZHOU Zhiwei 4   

  1. 1.School of Mining Engineering,North China University of Science and Technology,Tangshan 063009,Hebei,China; 2. Key Laboratory of Mining and Safety Technology of Hebei Province,North China University of Science andTechnology,Tangshan 063009,Hebei,China; 3. Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China; 4.Anshan Chentaigou Iron Mining,China Minmetals Corporation,Anshan 114044,Liaoning,China
  • Received:2017-07-31 Revised:2017-10-31 Online:2018-02-28 Published:2018-05-19

摘要:

针对现有放砂系统存在的砂浓度波动大、实际放砂浓度较低且不稳定等问题,提出了一种新的有别于立式砂仓传统放砂工作模式的放砂模型,即通过控制给料流量和浓度、放砂流量及尾砂堆积面高度3个条件达到给料、溢流、放砂同时进行的连续放砂模型,之后运用流体力学软件对连续放砂模型进行模拟分析。结果表明:当物料达到进出平衡时,不同尾砂堆积面高度对应的底流放砂浓度不同;砂浆中尾砂体积分数随砂仓高度呈规律性变化,由此提出预测模型。在云南玉溪大红山铜矿进行了连续放砂工业试验,结果表明工业试验效果良好,证实了连续放砂的可行性。

关键词: 尾砂, 动态沉降, 立式砂仓, 连续放砂, 数值模拟, 给料, 底流, 堆积高度

Abstract:

There were many problems in the existing ore drawing system,such as large sand concentration fluctuation,low concentration of actual ore drawing and instability,so a new discharge sand model was proposed ,which was different from tranditional discharge sand working mode of vertical sand silo.That was,by controlling three conditions of feed flow and concentration,discharge flow and height of tailings stacking surface,to carry out feed,overflow and discharge sand at the same time. And fluent software was used to simulate continuous discharge tailings model. The results showed that,different height of the accumulation corresponding to discharge tailings concentration at the bottom of the silo is different can be obtained as feeding,overflow and discharging keeping stability and achieving a dynamic balance. The relationship of tailings volume fraction changes with regularly silo height.Prediction model of the volume fraction of tailings changes with silo height is proposed. Industrial test of continuous tailings discharge systems is carried out in Dahongshan copper mine Yuxi Yunnan.The results showed that the industrial test displays successfully which validate the efficacy of the continuous tailings discharge model.

Key words: tailings, dynamic sedimentation, vertical tailings silo, consecutive discharge tailings, numerical simulation, feeding, underflow, accumulation height

中图分类号: 

  • TD325

[ 1 ] 王方汉,陈德标. 立式砂仓絮凝浓缩泥浆技术研究与应用[J].金属矿山,2000(1):21-24.Wang Fanghan,Chen Debiao. Study and application of the technology of slime pulp flocculation and thickening in a vertical sand bin[J].M etal Mine,2000(1):21-24.
[ 2 ] 史秀志,胡海燕,杜向红,等. 立式砂仓尾砂浆液絮凝沉降试验研究[J].矿冶工程,2010,30(3):1-3.Shi Xiuzhi,Hu Haiyan,Du Xianghong,et al. Experimental study on flocculating sedimentation of tailings slurry in a vertical sand tank[J].Mining and Metallurgical Engineering,2010,30(3):1-3.
[ 3 ] 周生,惠林. 尾矿特性对充填工艺及胶结强度的影响[J].中国矿山工程,2011,40(3):10-12.Zhou Sheng,Hui Lin. Influence of tailings’ behavior on the filling technology and the cementing strength[J].China Mine Engineering,2011,40(3):10-12.
[ 4 ] 刘娅,丁剑,付国燕,等. 微细氰化尾矿颗粒絮凝沉降实验研究[J].黄金科学技术,2015,23(4):91-96.Liu Ya,Ding Jian,Fu Guoyan,et al. Experimental study on flocculation sedimentation of mine cyanide tailings particles[J].Gold Science and Technology,2015,23(4):91-96.
[ 5 ] 陈顺良. 全尾砂料仓模型试验的流态化特征与参数分析[J].矿冶工程,2000,20(3):9-11.Chen Shunliang. Fluidizing characteristics and parameter analysis of full-tailing bin model test[J].Mining and M etal lurgical Engineering,2000,20(3):9-11.
[ 6 ] 郑建明,潘明友,任凤玉,等. 平底型立式砂仓在毛家寨铁矿的应用研究[J].有色矿冶,2012,28(2):13-14.Zheng Jianming,Pan Mingyou,Ren Fengyu,et al. The applied research of flat-bottomed vertical sand bin in Maojiazhai iron mine[J].Non-ferrous Mining and Metallurgy,2012,28(2):13-14.
[ 7 ] 崔仑,王剑波,孙豁然,等. 提高立式砂仓放砂浓度的研究[J].黄金,1998,19(6):20-22.Cui Lun,Wang Jianbo,Sun Huoran,et al. Study on improving the density of discharged sand pulp from silo[J]. Gold,1998,19(6):20-22.
[ 8 ] 胡亚军.立式砂仓控压助流连续放砂试验研究[J].中国矿业,2012,21(增):623-625.Hu Yajun.Experimental study on the vertical sand tank consecutive discharging at control pressure and keep fluidity[J].China Mining Magazine,2012,21(Supp.):623-625.
[ 9 ] 惠林,邓代强. 冬瓜山铜矿极细粒级全尾砂高浓度连续放砂实践[J].有色金属(矿山部分),2008,60(5):10-12.Hui Lin,Deng Daiqiang. Practice of minuteness full tailings slurry at high concentration consecutive discharging in Dongguashan copper mine[J].Nonferrous M etal s(Mining Section),2008,60(5):10-12.
[ 10 ] 丁文军,李广辉,丁志浩. 某金矿充填系统优化改造[J].黄金科学技术,2016,24(4):87-91.Ding Wenjun,Li Guanghui,Ding Zhihao. Optimization of filling system for a gold mine[J].Gold Science and Technology,2016,24(4):87-91.
[ 11 ] 张青松. 高效沉降分离池分离特性的数值模拟[J].新疆石油天然气,2014,10(3):114-118.Zhang Qingsong. Numerical simulation of separation properties in settling and high-efficient separation basin[J].Xinjiang Oil & Gas,2014,10(3):114-118.
[ 12 ] 贾凯,王永田,龚豪. 浓缩机内煤泥水沉降流场和浓度分布的数值模拟[J].金属矿山,2012,41(6):120-123.Jia Kai,Wang Yongtian,Gong Hao. Numerical simulation of concentration distribution and coal slurry settlement flow field in thickener[J].M etal Mine,2012,41(6):120-123.
[ 13 ] Betancourt F,Bürger R,Diehl S,et al. Advanced methods of flux identification for clarifier-thickener simulation models[J].Minerals Engineering,2014,63(4):2-15.
[ 14 ] Betancourt F,Bürger R,Diehl S,et al. Modeling and controlling clarifier–thickeners fed by suspensions with time-dependent properties[J].Minerals Engineering,2014,62:91-101.
[ 15 ] Howells I,Landman K A,Panjkov A,et al. Time-dependent batch settling of flocculated suspensions[J].Applied Mathematical Modelling,1990,14(2):77-86.
[ 16 ] 侯权,潘红良,冯巧波. 基于Fluent的搅拌反应罐流场的优化研究[J].机械设计与研究,2005,21(3):78-82.Hou Quan,Pan Hongliang,Feng Qiaobo. Research of optimizing fluid field of agitator by fluent[J].Machine Design and Research,2005,21(3):78-82.
[ 17 ] 吴成娟. 沉淀池的数值模拟[J].环境科学与管理,2010,35(9):66-69.Wu Chengjuan. Numerical Simulation of Sedimentation Tank[J].Environmental Science and Management,2010,35(9):66-69.
[ 18 ] 施周,涂朦朦,王涛,等. 水温对平流式二沉池运行影响的数值模拟[J].安全与环境学报,2015,15(4):222-226.Shi Zhou,Tu Mengmeng,Wang Tao,et al. Numerical simulation of the effect of water temperature on the behaviors of a rectangular secondary sediment tank[J].Journal of Safety and Environment,2015,15(4):222-226.
[ 19 ] 徐长贺,谭立新,杨欢,等. 考虑絮凝作用的辐流式二次沉淀池的三维数值模拟[J].水资源与水工程学报,2017,28(1):157-162.Xu Changhe,Tan Lixin,Yang Huan,et al. Three-dimensional numerical simulation of radial flow secondary sedimentation tank with the consideration of flocculation[J].Journal of Water Resources and Water Engineering,2017,28(1):157-162.
[ 20 ] 刘百仓,马军,黄社华,等. 模拟沉淀池流速场的层流模型扩展性研究[J].中国给水排水,2007,23(11):102-104.Liu Baicang,Ma Jun,Huang Shehua,et al. Expansive study on laminar flow model for simulation of flow field in settling tank[J].China Water & Wastewater,2007,23(11):102-104.
[ 21 ] Usher S P,Scales P J. Steady state thickener modelling from the compressive yield stress and hindered settling function[J].Chemical Engineering Journal,2005,111(2/3):253-261.

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