电袋复合除尘器协同脱除SO3和Hg

doi:10.11930/j.issn.1004-9649.201812056

摘要/Abstract

摘要： 电袋复合除尘技术具有粉尘排放长期稳定、煤种适应性广、投资省、占地少、运行费用低等优点，近年来在中国燃煤电厂得到广泛应用。电袋复合除尘器协同脱除SO₃的效率超过60%，喷射少量碱性吸附剂后，脱除效率可提高至80%以上；电袋复合除尘器脱除颗粒Hg的效率超过99%，对气态Hg和总Hg的脱除效率受到烟气Hg形态分布的影响，喷射吸附剂后可提高对气态Hg的脱除效率至90%以上。相比于其他污染物脱除设备，电袋复合除尘器在协同脱除SO₃和Hg等污染物方面具有效率高、成本低的显著优势。

关键词: 燃煤电厂, 电袋复合除尘器, 协同脱除, SO₃, Hg

Abstract: Featured by long-term stable dust emissions, high adaptability to varieties of coal, low investments, less land occupation and low maintenance costs, the electrostatic-fabric integrated precipitator (EFIP) technology has been widely used in coal-fired power plants in China in recent years. The removal efficiency of SO₃ by EFIP exceeds 60%, which can be boosted to more than 80% after spraying a small amount of alkaline adsorbent. The removal efficiency of Hg^P by EFIP exceeds 99%. As for gaseous and total amount of mercury, though affected by the distribution of mercury in flue gas, the removal efficiency of gaseous mercury can still be improved to over 90% after spraying the adsorbents. Compared with other pollutant removal equipment, EFIP has obvious advantages in its high efficiency and low cost for collaborative removal of gaseous pollutants such as SO₃ and Hg.

Key words: coal-fired power plant, electrostatic-fabric integrated precipitator, collaborative removal, SO₃, Hg

中图分类号:

TM621.7+3

陈奎续. 电袋复合除尘器协同脱除SO₃和Hg[J]. 中国电力, 2019, 52(3): 29-35.

CHEN Kuixu. Collaborative Removal of SO₃ and Hg by Electrostatic-Fabric Integrated Precipitator[J]. Electric Power, 2019, 52(3): 29-35.

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https://www.electricpower.com.cn/CN/Y2019/V52/I3/29

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电袋复合除尘器协同脱除SO₃和Hg

Collaborative Removal of SO₃ and Hg by Electrostatic-Fabric Integrated Precipitator

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