黄金科学技术
黃金科學技術
황금과학기술
Gold Science and Technology
2015年
5期
60-65
,共6页
管道输送%数值模拟%理论计算%阻力损失
管道輸送%數值模擬%理論計算%阻力損失
관도수송%수치모의%이론계산%조력손실
pipeline transportation%numerical simulation%theoretical calculation%resistance loss
高浓度全尾砂自流输送在金属矿山的应用日趋广泛。通过对某铁矿高浓度全尾砂胶结充填管道输送进行数值模拟研究，确定高浓度全尾砂料浆相关物理参数，构建适合高浓度全尾砂胶结充填料浆管道输送的数值模型。利用 ANSYS/FLOTRAN 模拟高浓度全尾砂料浆在充填管道内流动的动态特征，并将模拟结果与理论计算进行对比分析，同时进行料浆输送过程的数值解算，分析结果显示：（1）料浆浓度在68%~78%范围内以1.5，2.0，2.5 m/s 进口流速完全能实现自流输送；（2）模拟结果与理论计算对比分析得出二者阻力损失相对比较一致；（3）随着料浆进口流速的增大，料浆浓度对弯管处的冲击影响越不明显。研究表明该数值模型建立合理，研究结果对高浓度全尾砂胶结充填管道自流输送试验和实践提供了一定的指导与借鉴。
高濃度全尾砂自流輸送在金屬礦山的應用日趨廣汎。通過對某鐵礦高濃度全尾砂膠結充填管道輸送進行數值模擬研究，確定高濃度全尾砂料漿相關物理參數，構建適閤高濃度全尾砂膠結充填料漿管道輸送的數值模型。利用 ANSYS/FLOTRAN 模擬高濃度全尾砂料漿在充填管道內流動的動態特徵，併將模擬結果與理論計算進行對比分析，同時進行料漿輸送過程的數值解算，分析結果顯示：（1）料漿濃度在68%~78%範圍內以1.5，2.0，2.5 m/s 進口流速完全能實現自流輸送；（2）模擬結果與理論計算對比分析得齣二者阻力損失相對比較一緻；（3）隨著料漿進口流速的增大，料漿濃度對彎管處的遲擊影響越不明顯。研究錶明該數值模型建立閤理，研究結果對高濃度全尾砂膠結充填管道自流輸送試驗和實踐提供瞭一定的指導與藉鑒。
고농도전미사자류수송재금속광산적응용일추엄범。통과대모철광고농도전미사효결충전관도수송진행수치모의연구，학정고농도전미사료장상관물리삼수，구건괄합고농도전미사효결충전료장관도수송적수치모형。이용 ANSYS/FLOTRAN 모의고농도전미사료장재충전관도내류동적동태특정，병장모의결과여이론계산진행대비분석，동시진행료장수송과정적수치해산，분석결과현시：（1）료장농도재68%~78%범위내이1.5，2.0，2.5 m/s 진구류속완전능실현자류수송；（2）모의결과여이론계산대비분석득출이자조력손실상대비교일치；（3）수착료장진구류속적증대，료장농도대만관처적충격영향월불명현。연구표명해수치모형건립합리，연구결과대고농도전미사효결충전관도자류수송시험화실천제공료일정적지도여차감。
The Gravity-flowed Convey of high-density whole tailing is already widely applied as time goes on and distributed around the globe in metal mine.A detailed numerical simulation study was conducted of a pipeline transportation of high-density whole tailing of iron ore,and based on high-density whole tailing slurry,main physical parameters are defined and the construction of the numerical model of the pipeline transportation of high-density whole tailing cemented filling slurry was also completed at the same time.Depend on the application of ANSYS/FLOTRAN,we will simulate the dynamic feature of high-density whole tailing slurry when it works in the pipeline,and also conducted a comparative analysis between the simulated result and the theoretical value.At the same time,the numerical calculation of transportation of slurry was also conducted and studies the result of the calculation.The slurry whose concentration is between 68% and 78% will achieve Gravity-flowed Convey by the intake velocity of 1.5 m/s,2.0 m/s and 2.5 m/s.When it comes to the simulated result and the theoretical calculation,we find resistance loss of both are almost unanimous.With the initial velocity of slurry increasing,the impact force coming from the concentration of slurry is becoming lighter and lighter at the same time.At last,we can conclude that the numerical model is reasonable and practicable,and this review would provide a theoretical guide for the application of Gravity-flowed Convey of high-density whole tailing cemented filling slurry.
