管道输煤参数优化研究

发布时间：2018-05-09 03:34

本文选题：管道输煤 + 输送参数　；参考：《煤炭工程》2017年05期

【摘要】：介绍了长距离管道输煤煤浆制备过程中,通过优化给出的煤浆制备控制标准:煤浆颗粒小于0.044mm所占比例大于20%,最大颗粒小于1.2mm,煤浆流变特性刚度系数η大于25MPa·s,为保证煤浆管道的运输安全提供了科学依据。另外,借用前期固、液两相流研究推导的阻力损失和不淤流速的半理论半经验公式,通过管道输煤资料回归的经验系数,对国内外输煤实验资料,美国Black Measa输煤管线工程资料验证,误差不超过10%,说明推导的公式具有较高精度,可以用于输煤计算。
[Abstract]:The preparation process of coal slurry for long distance pipeline transportation is introduced. By optimizing the control standard of coal slurry preparation: the proportion of coal slurry particles less than 0.044mm is more than 20, the maximum particle is less than 1.2 mm, and the stiffness coefficient 畏 of rheological property of coal slurry is greater than 25MPa s, which provides a scientific basis for ensuring the transportation safety of coal slurry pipeline. In addition, by using the semi-theoretical semi-empirical formula of resistance loss and non-silt velocity derived from the study of solid-liquid two-phase flow in the early stage, the experimental data of coal transportation at home and abroad are obtained through the regression empirical coefficient of pipeline coal transport data. American Black Measa coal pipeline engineering data verification, the error is not more than 10, it shows that the derived formula has a high accuracy, can be used for coal transportation calculation.
【作者单位】：中国矿业大学(北京)化学与环境工程学院;清华大学土木水利学院;
【基金】：国家自然科学基金资助项目(51279080) 国家大学生创新性实验计划(C201603012) 国家重点研发计划(2016YFC0501108)
【分类号】：TD50

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