Abstract

In this study, the motion of three phases (gas, liquid, and solid) and characteristics of particle removal inside the liquid chamber of industrial scrubbing tower were studied through unsteady simulations using the VOF-DPM coupled model. The study focused on the motion of dust particles in a three-dimensional computational domain of \(4200\times 8400\) mm. After the system achieved stability, we obtained a chamber removal ability of 82.0% for a group of particles of different diameters, as well as removal ability for particles of different identical diameters. As the diameter grew from 10 \(\mu\)m to 500 \(\mu\)m, the dust removal efficiency increased from 23.1% to 97.2%. Moreover, the particle mass concentration along the height of the chamber was investigated. Based on prediction results, additional simulations were performed to investigate the effect of related parameters, including the inlet gas velocity and the initial liquid level height, on the dust-removal performance of the liquid chamber. The ideal operating parameters were identified, as playing a deciding role in appropriate industrial conditions.

中文翻译：

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洗涤塔液室内气液固三相流过程模拟及颗粒去除特性

摘要

在这项研究中，通过使用VOF-DPM耦合模型的非稳态模拟，研究了工业洗涤塔液体室内的三相运动（气体，液体和固体）和颗粒去除特性。该研究集中于尘埃粒子在\（4200 \乘以8400 \）  mm的三维计算域中的运动 。系统达到稳定性后，对于一组不同直径的颗粒，我们获得了82.0％的腔室去除能力，以及对于不同直径的相同颗粒的去除能力。随着直径从10 \（\ mu \） m增长 到500  \（\ mu \）m，除尘效率从23.1％提高到97.2％。此外，研究了沿腔室高度的颗粒质量浓度。根据预测结果，还进行了其他模拟，以研究相关参数（包括进气速度和初始液位高度）对液室除尘性能的影响。确定了理想的工作参数，在适当的工业条件下起着决定性的作用。