水平管道中粗颗粒浆体摩阻损失的研究

Research of Friction Loss for Coarse Particle Slurry in Horizontal Pipeline

水平管道粗颗粒浆体阻力损失的研究在矿业工程方面很有实际意义,而目前这方面的计算模型大多还不完善.为了选择合适的摩阻损失计算模型,基于前人的实验数据,采用同类比较法对目前三家具有代表性的粗颗粒浆体管道摩阻损失计算模型进行了探讨,发现三家公式都存在随着固体颗粒粒径和浓度的增加,误差都有增大的趋势.Newitt的缺点在于缺少浓度考量;Durand公式误差来源于重力理论的不足,许振良公式的不足在于相关参数取值.

It is significative in mining Engineering to investigate the friction loss of coarse particle slurry in horizontal pipeline, but the research on this respect is not perfect. In order to pick out appropriate calculation model for friction loss, based on the experimental results of involved expert in this aspect, congener comparative method is used to discuss three calculation model for coarse particle slurry. And it turned that the extent of error between three model and experimental results increases as particle diameter and concentration add. The deficiency of Newitt model is lack of concentration, and the error of Durand model lies in gravity theory＇s deficiency, and the deficiency of Xu zhen-liang model lies in correlative parameters＇ value.