火电厂湿法烟气脱硫系统技术改造实践  

Technical reform practice of flue gas desulfurization system in thermal power plant

作　　者：郭静静[1] 陈帅 王匡[1] Guo Jingjing;Chenshuai;Wang Kuang(Yulin Vocational and Technical College;Yulin Economic Development Zone Huitong Thermal Power Co.,Ltd)

机构地区：[1]榆林职业技术学院 [2]榆林经济开发区汇通热电有限公司

出　　处：《冶金能源》2022年第5期61-64,共4页Energy For Metallurgical Industry

基　　金：榆林职业技术学院院级科研项目(K202005)。

摘　　要：某2×600 MW燃煤机组脱硫采用石灰石—石膏湿法烟气脱硫工艺,无法稳定满足超低排放要求。充分考虑吸收剂供应、供水条件、供气/汽条件和入口烟气参数等因素,结合现有脱硫系统的运行和现场布置情况,采用喷淋层改造+高效除尘除雾装置改造方案。改造实际运行结果表明:脱硫出口烟气SO排放浓度小于35 mg/m^(3),烟尘浓度小于10 mg/m^(3),增加的烟气阻力仅为150 Pa。The limestone-gypsum wet flue gas desulfurization process is used in a 2×600 MW coal-fired unit, which cannot meet the ultra-low emission requirements stably. Taking fully into account the factors of absorbent supply, water supply conditions, air/steam conditions and inlet flue gas parameters, combined with the operation and field layout of the existing desulfurization system, the spray layer transformation + high efficiency dust removal and mist removal device transformation scheme is adopted. The actual operation results show that the SOemission concentration of flue gas at the desulfurization outlet is less than 35 mg/m^(3), the dust concentration is less than 10 mg/m^(3), and the increased flue gas resistance is only 150 Pa.

关 键 词：湿法脱硫 吸收剂 喷淋层改造 高效除尘除雾 

分 类 号：X773[环境科学与工程—环境工程]