(1. 昆明理工大學 國土資源工程學院，昆明 650093；
2. 玉溪礦業(yè)有限公司 技術管理部，玉溪 653100；
3. 昆明有色冶金設計研究院股份公司 礦山工程設計院，昆明 650051)
摘 要: 為研究廢石-風砂高濃度充填料漿自流輸送管道輸送特性，將礦山實際充填管路進行還原，應用FLUENT軟件進行輸送模擬研究。結果表明：充填料漿在管道的管徑方向有明顯的速度梯度；隨料漿流速的增大，料漿的輸送沿程阻力損失基本呈線性增大；質量濃度對管輸阻力的影響非常大，在充填料漿質量濃度相差2%左右時，管道單位長度的阻力損失會相差20%~30%。通過對不同骨料比的充填料漿進行數值模擬，可知廢石風砂質量比為6:4的漿體穩(wěn)定性和流動性相對較好，更有利于管道輸送。建立了管輸阻力新模型，并通過工業(yè)試驗對模型進行檢驗，驗證了新的管輸阻力模型的可靠性，研究結果為該礦選取充填系統(tǒng)的運行參數提供了重要依據。
關鍵字: 自流輸送；高濃度料漿；阻力損失；數值模擬；阻力模型
（1. School of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China;
2. Technical Management Division, Yuxi Mining Co., Ltd., Yuxi 653100, China;
3. Mine Engineering Design Institute, Kunming Nonferrous Metallurgy Design and Research Institute Co., Ltd., Kunming 650051, China）
Abstract:In order to investigate the transportation characteristics of waste rock-aeolian sand high concentration slurry for self flow pipeline filling, the actual filling pipeline in the mine was reduced, and the transportation simulation research was carried out with FLUENT software. The results show that there is an obvious velocity gradient in the direction of pipe diameter. With the increase of slurry velocity, the resistance loss of slurry transportation increases linearly. The slurry concentration has a great influence on the resistance of pipeline transportation. When the concentration difference of filling slurry is about 2%, the resistance loss per unit length of pipeline will vary by 20%-30%. Through the numerical simulation of the filling slurry with different aggregate ratio, the results show that the stability and fluidity of the slurry with waste rock-aeolian sand mass ratio of 6:4 are relatively better, which is more conducive to pipeline transportation. A new model of pipeline resistance was established, and the reliability of the new model was verified by industrial test. The results provide an important basis for selecting the operation parameters of the filling system.
Key words: gravity conveying; high concentration slurry; resistance loss; numerical simulation; resistance model
