(昆明理工大學(xué) 國土資源工程學(xué)院，昆明 650093)
摘 要: 為了研究粗骨料高濃度充填料漿管道自流輸送問題，根據(jù)金川礦區(qū)的實際充填管路利用Gambit建立三維管道模型，依據(jù)料漿自身的特點以及結(jié)構(gòu)流理論，在Fluent(3D)求解器中進行數(shù)值模擬。通過對不同濃度及不同流量情況下管道阻力損失的分析以及對彎管處壓力的分析，獲得在滿足強度和高濃度的前提下的最佳料漿輸送濃度為78 %~79 %，最佳流速為90 m3/h。同時，通過坍落度試驗以及工業(yè)試驗對數(shù)值模擬的結(jié)果進行驗證。結(jié)果表明，粗骨料高濃度料漿管道輸送模擬是可行的，研究結(jié)果為礦山應(yīng)用粗骨料高濃度充填提供了理論依據(jù)。
關(guān)鍵字: 廢石-尾砂；Fluent數(shù)值模擬；自流輸送；管道阻力損失
（Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China）
Abstract:In order to study the pipeline gravity transport of high-density filling slurry with coarse aggregates, the Gambit was used to establish 3D pipeline models according to the actual filling line in Jinchuan and numerical simulations were performed in the solver of Fluent (3D) based on the slurry characteristics and the structure flow theory. Through analyzing the resistance loss of the pipeline and force condition of the elbow under different concentrations and volume fluxs, the best transportation concentration of slurry is 78%-79%, and the optimal flux is 90 m3/h on the premise of meeting the requirement of strength and high-density. At the same time, the results of numerical simulation through the slump test and industrial experiment were verified, the pipeline simulation of high-density slurry with coarse aggregates is feasible, the result provides a theoretical basis for applying high density filling with coarse aggregates in mine.
Key words: waste rock-tailing; Fluent numerical simulation; gravity transportation; pipeline resistance loss
