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首页> 外文期刊>Journal of Engineering Research >Numerical Simulation of a New Horizontal Spray Tower for Sintering Flue Gas Desulfurization
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Numerical Simulation of a New Horizontal Spray Tower for Sintering Flue Gas Desulfurization

机译：烧结烟气脱硫新水平喷雾塔的数值模拟

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The flow rate and temperature of the flue gas from a?sintering machine can fluctuate in a wide range; thus,?the follow-up desulfurization facility should be operated stably and maintained?on-line. A new type?of horizontal?spray tower, which can achieve high efficiency with low?pressure loss and easy maintenance, was invented by the University of Science and Technology Beijing. A?3D?multiphase computational fluid dynamics (CFD) model of the horizontal spray tower was constructed with?Fluent software?to study the internal flow field and the reaction of the horizontal spray tower.?The standard k–ξ?model and the Eulerian–Lagrangian model?were adopted in this study. Results?show that the flow field in the spray tower can be numerically simulated utilizing?the CFD technology. The inlet angle?exerts?an important effect on the flue gas flow field of the horizontal tower. When the first-order?efficiency?and the economic indicators are taken?into account, an?inlet angle of 75°?is recommended?in the top inlet intake?mode,?whereas a?30° inlet angle?performs the best?in the side inlet intake?mode. The spray configuration exerts an important influence. When the spray cone angle is 110° and the installation height is controlled at 0.8 m from the top surface, the smoke residence time is long, and the contact is sufficient.?The results can provide?theoretical support?for the optimization of the structure of the spray tower.
机译：来自烧结机的烟气的流速和温度可以在宽范围内波动;因此，？后续脱硫设施应稳定和维护？在线。一种新型？水平的？喷雾塔，可以通过低温损失和易于维护来实现高效率，由科学技术大学北京发明。 a？3D？水平喷雾塔的多相计算流体动力学（CFD）模型用？流畅的软件构建？研究内部流场和水平喷雾塔的反应。标准K-ξ？模型和欧拉-Lagrangian模型？本研究采用。结果表明，喷雾塔中的流场可以在数值上利用？CFD技术。入口角度？施加？对水平塔的烟气流场的重要作用。当一阶？效率？和经济指标被拍摄？考虑到？进样角度为75°？建议？在顶部入口进入？模式，？虽然a？30°入口角度？在侧入口摄入？模式。喷雾配置发挥了重要影响。当喷雾锥角是110°并且安装高度从顶面控制0.8米时，烟雾停留时间很长，接触就足够了。结果可以提供？理论支持？用于优化结构的优化喷雾塔。

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