| 水煤浆管道输送摩阻损失研究 |
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| 引用本文： | 王铁力.水煤浆管道输送摩阻损失研究[J].矿冶工程,2020,40(6):5-7. |
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| 作者姓名： | 王铁力 |
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| 作者单位： | 中煤科工集团武汉设计研究院有限公司 管道工程院,湖北 武汉 430064 |
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| 基金项目： | 中国煤炭科工集团有限公司科技创新创业资金专项项目 |
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| 摘 要： | 以十二醇醚为分散剂,进行了水煤浆管道输送实验研究,分析了分散剂浓度和煤浆浓度变化对煤浆摩阻损失的影响。煤浆管道输送数据分析及理论计算结果表明: 分散剂浓度越大,煤浆摩阻损失值越小; 水煤浆浓度越大,摩阻损失值越大。实验数据拟合结果表明有效黏度与平均切变率成线性关系,从理论上给出了煤浆摩阻损失的计算公式,计算值与实测值偏差不大于18%。
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| 关 键 词： | 管道输送 分散剂 十二醇醚 水煤浆 黏度 摩阻损失 |
| 收稿时间： | 2020-06-13 |
Friction Loss in Pipeline Transportation of Coal-Water Slurry |
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| WANG Tie-li.Friction Loss in Pipeline Transportation of Coal-Water Slurry[J].Mining and Metallurgical Engineering,2020,40(6):5-7. |
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| Authors: | WANG Tie-li |
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| Affiliation: | Pipeline Engineering Institute, Wuhan Design and Research Institute of China Coal Technology and Engineering Group, Wuhan 430064, Hubei, China |
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| Abstract: | With dodecyl alcohol ether as the dispersant, an experimental study was carried out for the pipeline transportation of coal-water slurry, and the influence of the variation in the concentration of dispersant and coal slurry on the friction loss was analyzed. Data analysis and theoretical calculation for the pipeline transportation of coal slurry show that the greater the concentration of dispersant, the smaller the friction loss of coal slurry; the greater the concentration of coal-water slurry, the bigger the friction loss. The experimental data fitting results show that the effective viscosity has a linear relationship with the average shear rate. A theoretical calculation formula for the friction loss of coal slurry is provided, showing the deviation between the calculated value and the measured value is no more than 18%. |
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| Keywords: | pipeline transportation dispersant dodecyl alcohol ether coal-water slurry viscosity friction loss |
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