| pH分区供浆模式强化气动旋流塔湿法脱硫效率 |
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| 引用本文： | 郭志, 刘志敏. pH分区供浆模式强化气动旋流塔湿法脱硫效率[J]. 环境工程学报, 2021, 15(2): 635-642. doi: 10.12030/j.cjee.202004078 |
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| 作者姓名： | 郭志 刘志敏 |
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| 作者单位： | 航天环境工程有限公司，天津 300301 |
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| 基金项目： | 天津市科技计划项目(17ZXSTSF00030，18YFYSZC00070，19ZXSZSN00050) |
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| 摘 要： | 为了充分利用气动旋流强化单塔循环脱硫效率的优势,实现燃煤电站烟气SO2超低排放,采用pH分区供浆耦合气动旋流塔技术脱除燃煤烟气中的SO2,并研究了pH分区供浆模式下浆液pH及其差值的变化,分析了pH分区供浆对气动旋流塔脱硫性能的影响.结果表明:空塔喷淋运行工况,pH分区供浆对脱硫效率影响较小;单层循环pH分区供浆耦合气...
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| 关 键 词： | 气动旋流塔 湿法烟气脱硫 脱硫效率 pH分区供浆 |
| 收稿时间： | 2020-04-16 |
Wet desulfurization efficiency based on dual-pH slurry supply coupled aerodynamic swirl tower |
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| GUO Zhi, LIU Zhimin. Wet desulfurization efficiency based on dual-pH slurry supply coupled aerodynamic swirl tower[J]. Chinese Journal of Environmental Engineering, 2021, 15(2): 635-642. doi: 10.12030/j.cjee.202004078 |
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| Authors: | GUO Zhi LIU Zhimin |
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| Affiliation: | Aerospace Environmental Engineering Co. Ltd., Tianjin 300301, China |
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| Abstract: | In order to make full use of the advantages of pneumatic hydrocyclone enhancing the efficiency of single tower circulationg desulfurization and realize the ultra-low emission of SO2 in the flue gas of coal-fired power plant, in this study, the technology of dual-pH slurry supply coupled aerodynamic swirl tower was used to remove SO2 in the flue gas of the coal-fired power plant, and the slurry pH change and difference under the dual-pH slurry supply mode were systematically investigated, and the effect of the dual-pH slurry supply system on the desulfurization performance of the aerodynamic swirl tower was analyzed. The results showed that the dual-pH slurry supply had slight effect on the desulfurization efficiency under the operation condition of the empty tower. However, the desulfurization efficiency of the dual-pH slurry supply was significantly higher than that of the main slurry tank supply under the operation condition of the dual-pH slurry supply of single layer circulation coupling pneumatic swirl, and the promoting effect on the desulfurization efficiency decreased with the increase of the pH of the main slurry tank, The experimental results were consistent with the trend of the slurry pH calculation results. In addition, under the operation condition of the dual-pH slurry supply of double layer circulation coupling pneumatic swirl, the higher the dual-pH slurry supply, the more the desulfurization efficiency increases, and it gradually decreased with the increase of the pH in the main slurry tank. This study proves that the dual-pH slurry supply can improve the desulfurization performance of the pneumatic hydrocyclone, which can provide a reference for the performance improvement of the pneumatic hydrocyclone and the ultra-low emission reconstruction of the desulfurization device. |
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| Keywords: | aerodynamic swirl tower wet flue gas desulfurization desulfurization efficiency dual-pH slurry supply |
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