工程科学学报，第37卷，第1期：7-12,2015年1月 Chinese Journal of Engineering,Vol.37,No.1:7-12,January 2015 DOI:10.13374/j.issn2095-9389.2015.01.002:http://journals.ustb.edu.cn 膏体料浆管道输送压力损失的影响因素 王少勇2，吴爱祥区，尹升华”，韩斌”，王洪江” 1)北京科技大学金属矿山高效开采与安全教有部重点实验室，北京100083 2)中国矿业大学煤炭资源与安全开采国家重点实验室，徐州221116 ☒通信作者，E-mail:wuaixiang(@126.com 摘要为研究膏体料浆管道输送过程中的压力损失，本文建立了新型闭路环管试验测试平台，研究了管径、料浆流速、料浆 中固相含量和物料粒径对膏体料浆管道输送压力损失的影响.流速对压力损失的影响分两个阶段：当流速小于黏性过渡流 速时，压力损失随流速呈线性增加：当流速大于黏性过渡流速时，压力损失随着流速增加呈1~2次多项式增加，且增加速率 远大于流速增加速率。压力损失随管径增大呈负幂指数减小，随料浆中固相质量分数的增加呈指数增加.在相同工况条件 下，细粒级较粗粒级料浆管输压力损失更大，且黏性过渡流速较大，压力损失随流速增加相对缓慢， 关键词采矿：膏体料浆：管道输送：压力损失：影响因素 分类号TD926.4 Influence factors of pressure loss in pipeline transportation of paste slurry WANG Shao-yong,WU Ai-xiang,YIN Sheng-hua,HAN Bin,WANG Hong jiang" 1)Key Laboratory of High-Efficient Mining and Safety of Metal Mines (the Ministry of Education),University of Science and Technology Beijing,Bei- jing 100083,China 2)China Key laboratory for Coal Resources and Safe Mining,China University of Mining and Technology,Xuzhou 221116,China Corresponding author,E-mail:wuaixiang@126.com ABSTRACT A new pipe loop test platform was built to study the influence factors and levels of pressure loss in slurry pipe transpor- tation.The influences of pipe inner-diameter,flow velocity,slurry concentration and particle size on the pressure loss were investiga- ted.It is found that the influence of flow velocity on the pressure loss can be divided into two stages:when the flow velocity is less than the viscous transition flow rate,the pressure loss increases linearly with the increasing of flow velocity;but when the flow velocity is greater than the viscous transition velocity,the pressure loss increases in linear to quadratic polynomials with the increase of flow ve- locity,and the increasing rate is greater than that of flow velocity.The pressure loss negative-power decreases with the increasing of pipe diameter,but it exponentially increases with increasing slurry concentration.Under the same working condition,the pressure loss of fine-grained slurry is greater than coarse-grained slurry,the viscous transition velocity of fine-grained slurry is larger,but the in- crease in pressure loss of fine-grained slurry with flow velocity is relatively slow. KEY WORDS mining:paste slurry:pipeline transportation;pressure loss:influencing factors 充填采矿法将地表堆积废料回填到井下处理空脱水，充填体强度增长迅速，充填质量好，效率高，成本 区，成为矿山最安全、高效和环保的采矿方法.其中膏 低等优点，成为充填采矿的主要发展方向四.膏体 体充填以其不离析，不沉淀，且采场脱水量少，甚至不 料浆由于细粒级物料含量高且浓度高，黏性系数必然 收稿日期：2013-10-29 基金项目：国家自然科学基金资助项目(51304011,51374034)：中央高校基本科研业务费专项资金资助项目(FRF-TP-14060A0；“十二五” 国家科技支撑计划资助项目(2012BAB08B02):中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(12KF03)工程科学学报，第 37 卷，第 1 期: 7--12，2015 年 1 月 Chinese Journal of Engineering，Vol． 37，No． 1: 7--12，January 2015 DOI: 10． 13374 /j． issn2095--9389． 2015． 01． 002; http: / /journals． ustb． edu． cn 膏体料浆管道输送压力损失的影响因素 王少勇1，2) ，吴爱祥1) ，尹升华1) ，韩 斌1) ，王洪江1) 1) 北京科技大学金属矿山高效开采与安全教育部重点实验室，北京 100083 2) 中国矿业大学煤炭资源与安全开采国家重点实验室，徐州 221116  通信作者，E-mail: wuaixiang@ 126． com 摘 要 为研究膏体料浆管道输送过程中的压力损失，本文建立了新型闭路环管试验测试平台，研究了管径、料浆流速、料浆 中固相含量和物料粒径对膏体料浆管道输送压力损失的影响． 流速对压力损失的影响分两个阶段: 当流速小于黏性过渡流 速时，压力损失随流速呈线性增加; 当流速大于黏性过渡流速时，压力损失随着流速增加呈 1 ～ 2 次多项式增加，且增加速率 远大于流速增加速率． 压力损失随管径增大呈负幂指数减小，随料浆中固相质量分数的增加呈指数增加． 在相同工况条件 下，细粒级较粗粒级料浆管输压力损失更大，且黏性过渡流速较大，压力损失随流速增加相对缓慢． 关键词 采矿; 膏体料浆; 管道输送; 压力损失; 影响因素 分类号 TD926. 4 Influence factors of pressure loss in pipeline transportation of paste slurry WANG Shao-yong1，2) ，WU Ai-xiang1)  ，YIN Sheng-hua1) ，HAN Bin1) ，WANG Hong-jiang1) 1) Key Laboratory of High-Efficient Mining and Safety of Metal Mines ( the Ministry of Education) ，University of Science and Technology Beijing，Bei￾jing 100083，China 2) China Key laboratory for Coal Ｒesources and Safe Mining，China University of Mining and Technology，Xuzhou 221116，China  Corresponding author，E-mail: wuaixiang@ 126． com ABSTＲACT A new pipe loop test platform was built to study the influence factors and levels of pressure loss in slurry pipe transpor￾tation． The influences of pipe inner-diameter，flow velocity，slurry concentration and particle size on the pressure loss were investiga￾ted． It is found that the influence of flow velocity on the pressure loss can be divided into two stages: when the flow velocity is less than the viscous transition flow rate，the pressure loss increases linearly with the increasing of flow velocity; but when the flow velocity is greater than the viscous transition velocity，the pressure loss increases in linear to quadratic polynomials with the increase of flow ve￾locity，and the increasing rate is greater than that of flow velocity． The pressure loss negative-power decreases with the increasing of pipe diameter，but it exponentially increases with increasing slurry concentration． Under the same working condition，the pressure loss of fine-grained slurry is greater than coarse-grained slurry，the viscous transition velocity of fine-grained slurry is larger，but the in￾crease in pressure loss of fine-grained slurry with flow velocity is relatively slow． KEY WOＲDS mining; paste slurry; pipeline transportation; pressure loss; influencing factors 收稿日期: 2013--10--29 基金项目: 国家自然科学基金资助项目( 51304011，51374034) ; 中央高校基本科研业务费专项资金资助项目( FＲF--TP--14--060A1) ; “十二五” 国家科技支撑计划资助项目( 2012BAB08B02) ; 中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目( 12KF03) 充填采矿法将地表堆积废料回填到井下处理空 区，成为矿山最安全、高效和环保的采矿方法． 其中膏 体充填以其不离析，不沉淀，且采场脱水量少，甚至不 脱水，充填体强度增长迅速，充填质量好，效率高，成本 低等优点，成为充填采矿的主要发展方向［1 － 2］． 膏体 料浆由于细粒级物料含量高且浓度高，黏性系数必然