Reclamation Work Method Using Hydraulic Transportation

(1)目的：本研究的目的是通过对管道中密相低粘度液膜流动的研究、水平管内移动床固液两相流动中颗粒行为的研究、添加细颗粒降低两相流压力损失的研究、Bingham塑性流体圆形射流的研究以及Bingham塑料流体在粗糙管道中的流动的研究，得出一些有助于水力输送回收工作方法的结果。(2)为达到这一目的，对高岭土浓相浆体在管道中的水膜流动的压力损失进行了实验研究。关于宾汉塑性流体圆形射流的速度分布和粗糙管内宾汉塑料流体流动的速度分布和压力损失，水平管内移动床固液两相流中颗粒行为和速度…的理论研究(3)结果：1.从理论上得到了内筒轴向运动的宾汉塑性流体环形流动的速度分布。2)分析了水平管内固液两相流中颗粒的行为以及移动床高度与平均速度的关系。C)在直径为1.5英寸的水平管道中，硅砂-水混合物流中加入细小颗粒所造成的压力损失最大减少量为相同流速下混合流压力损失的60%。D)对Bingham塑性流体圆形射流在完全发展流区的速度分布进行了理论分析和实验验证。E)从测量Bingham塑性流体在粗糙管中流动的压力损失的结果可以看出，完全粗糙面区流体流动的摩擦因数与牛顿流体在该区域流动的摩擦因数相同。较少

(1) OBJECTIVE: This research objective is to get some results for contributing to reclamation work method using hydraulic transportation from studies on the dense phase slurry flow with lower viscosity fluid film flow aroun it in pipes, on the behavior of particles in solid-liquid two phase flow with moving bed in horizontal pipes, on the reduction of the pressure loss of the two phase flow by adding fine particles, on the circular jet of Bingham plastic fluid and the Bingham plastic fluid flow in rough pipes.(2) APPROCH: In order to achieve the objective, experimental researches on the pressure loss of the dense phase kaolinite slurry flow with water film flow around it in a pipe, on the velocity profile of the circular jet of Bingham plastic fluid and on the velocity profilo and the pressure loss of Bingham plastic fluid flow in rough pipes and theoretical studies on the behavior of particles in solid-liquid two phase flow with moving bed in horizontal pipes and on the velocity profi … More le of the circular jet of Bingham plastic fluid are projevted.(3) RESULTS: a) The velocity profile of Bingham plastic fluid annular flow with inner cylinder moving axially is obtained theoretically. b) The behavior of particles and the relationship between the mmoving bed height and the mean velocity in solid-liquid two phase flow in horizontal pipes are analyzed. c) The maximum reduction of pressure loss owing to the fine particles addition to the silicasand-water mixture flow in a horizontal pipe 1.5 in in diameter is 60% of the pressure loss of the mixture flow with the same velocity in the pipe. d) The velocity profile of the circular jet of Bingham plastic fluid in the fully developed flow region is analyzed theoretically and confirmed by the experiment. e) From the results measured the pressure loss of Bingham plastic fluid flow in rough pipes, it is seen that the friction factor of the fluid flow in the fully rough surface region is the same as the friction factor of Newtonian fluid flow in that region. Less