(中南大學(xué)資源與安全工程學(xué)院，長沙 410083)
摘 要: 基于某金屬礦深井開采充填料漿管道輸送系統(tǒng)運(yùn)行的工程實(shí)例，對(duì)充填料漿管道輸送的動(dòng)力學(xué)過程進(jìn)行模擬分析。采用GAMBIT軟件建立超深、超長似膏體管道輸送二維動(dòng)態(tài)模型，并在此基礎(chǔ)上運(yùn)用FLUENT雙精度解算器進(jìn)行分離隱式模擬。結(jié)果表明：管道輸送的阻力損失值小于重力產(chǎn)生的壓力，可以實(shí)現(xiàn)自流輸送；充填料漿在自流輸送和工作流速為3.4 m/s的條件下，在彎管處得到最大速度為3.94 m/s，水平段最大速度為3.74 m/s，均滿足穩(wěn)定性要求。通過殘差曲線監(jiān)測所有相關(guān)變量的完整數(shù)據(jù)，證明模擬結(jié)果可靠，由此分析得出充填料漿管道輸送系統(tǒng)安全可靠。
關(guān)鍵字: 深井充填；似膏體；管道輸送；流態(tài)分析
（School of Resources and Safety Engineering, Central South University, Changsha 410083, China）
Abstract:Based on the engineering example of the filling slurry pipeline system in a deep metal mine, the dynamic process of the filling slurry in the pipeline transportation was simulated. At first, the two-dimension dynamic model of paste-like transportation in the ultra-deep, extra-long pipeline by GAMBIT soft was established, then, a separation implicit simulation through the double precision solver of FLUENT soft was used. The results show that the resistance value is less than the loss of pipeline pressure generated by gravity, the gravity flow conveyor can be achieved. Under the condition of self-flowing and the working flow rate of 3.4 m/s, the max flow rates of the backfilling slurry at elbow pipeline and horizontal pipeline are 3.94 m/s and 3.74 m/s, respectively, which can both meet the stability requirement. The complete data on all relevant variables were gotten by monitoring the residual curves, which proves that the simulation result is reliable. According to above analysis, the filled slurry pipeline transportation system is safe and reliable.
Key words: backfilling in deep mine; paste-like slurry; pipeline transportation; flow state analysis
