在工业循环管试验中,改性渣-飞灰凝煤泥的流动性
Zhizhen Liu1,2, Yi Jin3, Hu Zhou3
1College of Energy and Mining Engineering, Xi'an University of Science and Technology, Xi'an, 710054, China.
Scientific reports
|November 17, 2025
概括
改造后填充泥的管道运输显示压力损失随着流量和度的增加而增加. 较大的管径显著降低了压力损失,使高度和流速的有效运输成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 流体动力学 流体动力学
背景情况:
- 修改后填充泥,利用渣-飞灰粘合剂和煤聚合物,对于工业应用至关重要.
- 了解这种泥的管道运输特性对于高效和安全的运营至关重要.
研究的目的:
- 为了分析修改后填充泥的管道运输特性.
- 为了研究质量度和流速对压力损失的影响.
- 开发压力损失的预测模型,并评估管道直径的影响.
主要方法:
- 工业级循环测试是在不同质量度 (64-72%) 和流速 (1.0-2.7 m/s) 的修改后填充泥上进行的.
- 测量和分析了直管和肘部部分的压力损失.
- 导出了风病系数,并开发并验证了压力损失的预测模型.
- 进行了模拟,以评估管道直径对不同操作参数下的压力损失的影响.
主要成果:
- 压力损失与流速 (宾汉塑性行为) 呈现线性关系,与质量度呈现非线性关系.
- 肘部部分的压力损失是直线部分的4-8倍.
- 一个经过验证的预测模型准确估计了直管压力损失.
- 在高度和流速下,增加管道直径从100毫米到175毫米将压力损失减少约50%.
结论:
- 增加管道直径是一个有效的策略,以减轻与高质量度和流速相关的压力损失.
- 较大的管道在工业运输中促进了高流量和高度的同时使用.
- 该研究提供了一个可靠的预测框架和参考,用于优化改性回填泥的安全,高效和经济的管道运输.
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