Abstract:In order to accurately calculate the pressure loss in a filling pipeline with superfine total tailing and high concentration slurry in a mine, on the basis of the solid-liquid two-phase flow theory, the factors that affect the backfilling pipeline resistance of the total tailing slurry are analyzed, to obtain a calculation model of the pipeline transportation resistance with a high concentration and superfine total tailing slurry through the dimensional analysis. According to the method of the computational fluid dynamics (CFD), the effects on the filling pipeline resistance of some factors, like the slurry volume concentration, the flow rate, the pipe diameter, the solid mixture density and others, are evaluated, 360 groups of the pipeline resistance loss values are obtained; Using the least squares and linear regression method, the parameters in the transportation resistance model are calculated. With four common operating points selected, an error analysis of the calculation model is made, and according to the method of the regression coefficient significance test, the degree of the influence on the pipeline resistance loss of each factor is obtained finally. The error of the calculation model results against those of the pumping experiment with loop is around 5%, so it could meet the needs of the engineering design and can be used to reduce the pipe resistance.
张钦礼, 姜志良, 王石, 陈秋松, 朱阳亚, 万孝衡. 高浓度超细全尾砂充填料浆管道输送阻力模型[J]. 科技导报, 2014, 32(24): 51-55.
ZHANG Qinli, JIANG Zhiliang, WANG Shi, CHEN Qiusong, ZHU Yangya, WAN Xiaoheng. Pipeline Resistance Model of the Filling Slurry Transportation with High Concentration and Superfine Total Tailing. journal1, 2014, 32(24): 51-55.
[1] 王新民, 古德生, 张钦礼. 深井矿山充填理论与管道输送技术[M]. 长 沙: 中南大学出版社, 2010: 1-6. Wang Xinmin, Gu Desheng, Zhang Qinli. Theory of backfilling activity and pipeline transportation technology of backfill in deep mines[M]. Changsha: Central South University Press, 2010: 1-6.
[2] 吴迪, 蔡嗣经, 杨威, 等. 基于CFD的充填管道固-液两相流输送模拟 及试验[J]. 中国有色金属学报, 2012, 22(7): 40-44. Wu Di, Cai Sijing, Yang Wei, et al. Simulation and experiment of backfilling pipeline transportation of soild-liquid two-phase flow based on CFD[J]. Chinese Journal of Nonferrous Metals, 2012, 22(7): 40-44.
[3] 王新民, 丁德强, 吴亚斌, 等. 膏体充填管道输送模拟与分析[J]. 中国矿 业, 2006, 15(7): 91-96. Wang Xinmin, Ding Deqiang, Wu Yabin, et al. Numerical simulation and analysis of paste backfilling with piping transport[J]. China Mining Magazine, 2006, 15(7): 91-96.
[4] 赵建文. 充填系统技术研究与工艺流程设计书[R]. 长沙: 湖南中大设 计院有限公司, 2011. Zhao Jianwen. Technology research and process design of the filling system[R]. Changsha: Hunan Zhongda Design Institute Co. Ltd, 2011.
[5] 张钦礼, 谢盛青, 郑晶晶, 等.充填料浆沉降规律研究及输送可行性分 析[J]. 重庆大学学报, 2011, 34(1): 68-73. Zhang Qinli, Xie Shengqing, Zheng Jingjing, et al. Sedimentation law research and transportation feasibility study of backfilling slurry[J]. 2011, 34(1): 68-73.
[6] 王晓宇. 金川矿山废石-全尾砂高浓度充填料浆阻力模型研究[D]. 昆 明: 昆明理工大学, 2010. Wang Xiaoyu. Pulp resistance model research of waste rock-whole tailings and high concentration materials filling in Jinchuan[D]. Kunming: Kunming University of Science and Technology, 2010.
[7] 耿俊俊. 龙首矿深部充填系统可靠性及扩能技术方案研究[D]. 长沙: 中南大学, 2009. Geng Junjun. Study of Longshou mine deep piping reliability and expansion technique project[D]. Changsha: Central South University, 2009.
[8] 赵立娟. 不同粒径泥沙管道水力输送阻力特性研究[D]. 南京: 河海大 学, 2002. Zhao Lijuan. A study on resistance characteristic of hydraulically transporting sands with different size in pipelines[D]. Nanjing: Hohai University, 2002.
[9] 王新民, 张德明, 张钦礼, 等. 基于FLOW-3D软件的深井膏体管道自 流输送性能[J]. 中南大学学报, 2011, 42(7): 2101-2107. Wang Xinmin, Zhang Deming, Zhang Qinli, et al. Pipeline self-flowing transportation property of paste based on FLOW-3D software in deep mine[J]. Journal of Central South University, 2011, 42(7): 2101-2107.
[10] 周知进, 刘爱军, 夏毅敏, 等. 颗粒组分特性对杨矿硬管输送速度的 影响[J]. 中南大学学报, 2011, 42(9): 2692-2697. Zhou Zhijin, Liu Aijun, Xia Yimin, et al. Influence of particles component properties on transporting speed in lifting pipeline[J]. Journal of Central South University, 2011, 42(9): 2692-2697.
[11] 王洪武. 多相复合膏体充填料配比与输送参数优化[D]. 长沙: 中南 大学, 2010. Wang Hongwu. Optimum material proportion and transportation parameter of multiphase complex paste backfill[D]. Changsha: Central South University, 2010.
[12] 黄贯虹, 方刚. 系统工程方法与应用[M]. 广州: 暨南大学出版, 2005. Huang Guanhong, Fang Gang. System engineering method and application[M]. Guangzhou: Jinan University Press, 2005.
[13] 王天刚, 黄玉诚, 李飞跃. 在稳定流状态下似膏体料浆流变特性研究[J]. 有色矿山, 2003, 32(6): 257-262. Wang Tiangang, Huang Yucheng, Li Feiyue. Study on rheologucal characteristic of paste-like slurry under the condition of steady flow[J]. Nonferrous Mines, 2003, 32(6): 257-262.
[14] 陶平凯. 黄沙坪矿深部开采充填管道输送参数计算与仿真[J]. 金属 矿山, 2012, 435(9): 25-30. Tao Pingkai. Pipe-conveying parameter calculation and simulation validation of deep mining filling system of hongshaping mine[J]. Metal Mine, 2012, 435(9): 25-30.
[15] Bai H, Theuerkauf J, Gillis P A, et al. A coupled DEM and CFD simulation of flow field and pressure drop in fixed bed reactor with randomly packed catalyst particles[D]. Industrial & Engineering Chemitry Research, 2009, 48(8): 4060-4074.
[16] 廖异, 曾祥国. Hoek-Brown岩体非线性强度的线性化方法[J]. 中南 大学学报, 2012, 43(12): 205-210. Liao Yi, Zeng Guoxiang. Linearization method of non-linear strength of Hoek-Brown rocks mass[J]. Journal of Central South University 2012, 43(12): 205-210.
[17] 解海卫. 粉煤灰浓浆管道流动特性与阻力特性的研究[D]. 北京: 华 北电力大学, 2004. Xie Haiwei. Investigation on flow properties and resistance properties of condensed wet fly ash in pipeline[D]. Beijing: North China Electric Power University, 2004.
[18] 李国政. 充填料浆环管试验计算机仿真应用的研究[J]. 黄金, 2008, 29(4): 52-58. Li Guozheng. Computer simulation application research of circular canal filling pulp test[J]. Gold, 2008, 29(4): 52-58.