Analysis on Key Technologies of High Efficiency Desulfurization and Collaborative Dust Removal

doi:10.11930/j.issn.1004-9649.201802042

Abstract

Abstract: In order to systematically study the technologies of high efficiency desulfurization and collaborative dust removal, the actual application status of high efficiency desulfurization and collaborative dust removal in typical unit has been analyzed. It is clarified that to implement high efficiency desulfurization and collaborative dust removal technology the low-low temperature electric dust removal technology and high efficiency desulphurization technology should also be taken into account. The low-low temperature electric dust removal technology requires not only strict control on smoke temperature and ratio of ash to sulfur but also well-designed flow field, flow rate and the proper material selection to prevent the flue gas cooler from wearing and leaking. High efficiency desulfurization technology requires optimized tower spray layer and demister layer flow field, reasonable tower facilities spacing and flow rate settings as well as adequate spray coverage and appropriate nozzle and defogger configuration. The ultra-low emission of SO₂ and dust can be realized effectively by virtue of the synergistic action of low temperature electric precipitating technology and high efficiency desulphurization technology. Therefore, the low-low temperature dust removal technology in combination with efficient desulfurization synergistic dust removal technology is a more preferred technical route for dust and SO₂ ultra-low emission.

Key words: thermal power generation, low-low temperature electric dust removal, high efficiency desulfurization, dust removal, key technology

CLC Number:

X51
TM621

DU Zhen, WEI Hongge, ZHANG Yang, ZHU Yue. Analysis on Key Technologies of High Efficiency Desulfurization and Collaborative Dust Removal[J]. Electric Power, 2018, 51(6): 37-41.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201802042

https://www.electricpower.com.cn/EN/Y2018/V51/I6/37

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