中文摘要：

针对某钢铁厂烧结系统活性炭脱硫吸附塔,为提高烟气脱硫效率和降低SO2排放,借助FLUENT软件,采用湍流、多孔介质、传热、离散相以及组分运输等模型,仿真脱硫吸附塔脱硫过程,得到其烟气流动特性、压力分布特性和脱硫特性。采用上述模型,利用控制变量法,研究SO2体积分数、烟气温度、入口压力、烟气处理量等操作参数对脱硫效率的影响。研究结果表明提高烟气温度、降低SO2体积分数和减小烟气处理量均可提高烟气脱硫效率,而入口压力对其影响很小。上述结果可为提高烧结烟气脱硫效率提供理论依据。

英文摘要：

For an activated carbon absorption - desulfurization tower in a sintering system of a steel plant, using the models of turbulence, porous, heat transfer, species transport and discrete phase, the desulfurization process of the tower in the sintering system was simulated with the FLUENT software, and the characteristics of flue gas flow, pressure distribution and desulfurization were acquired. Based on this model, the effect of operating parameters, such as SO2 mole fraction, flue gas temperature, inlet pressure, and flue gas treatment capacity on the desulfurization effi- ciency were researched with the control variable method. The result shows that the desulfurization efficiency can be improved by improving the flue gas temperature, reducing the SO2 mole fraction of flue gas and decreasing the flue gas treatment capacity, while the inlet pressure of flue gas has little effect on the desulfurization efficiency, which can provide theoretical basis for improving the desulfurization efficiency of the sintering flue gas.