中国电力 ›› 2018, Vol. 51 ›› Issue (8): 167-172.DOI: 10.11930/j.issn.1004-9649.201805187

• 节能与环保 • 上一篇    下一篇

燃用劣质煤大型循环流化床锅炉超低排放技术研究与应用

柳成亮1, 蔡润夏2, 吕俊复2, 郝海俊1, 苏虎3, 耿瑞明1, 李剑1, 张晓宇1   

  1. 1. 山西国峰煤电有限责任公司, 山西 吕梁 032200;
    2. 清华大学 能源与动力工程系, 北京 100084;
    3. 东方锅炉股份有限公司, 四川 自贡 643001
  • 收稿日期:2018-07-01 出版日期:2018-08-05 发布日期:2018-11-01
  • 作者简介:柳成亮(1970-),男,高级工程师,主要研究方向为节能环保生产技术管理和应用,尤其是燃煤CFB锅炉超低排放技术和粉煤灰渣综合利用技术,E-mail:liucliang@126.com;吕俊复(1967-),男,教授,主要研究方向为循环流化床燃烧理论与技术,E-mail:lvjf@mail.tsinghua.edu.cn
  • 基金资助:
    “十三五”国家重点研发计划资助项目(2016YFB0600205)。

Research and Application of Ultra-low Emission Technology in Large-scale CFB Boilers Burning Low-rank Coal

LIU Chengliang1, CAI Runxia2, LYU Junfu2, HAO Haijun1, SU Hu3, GENG Ruiming1, LI Jian1, ZHANG Xiaoyu1   

  1. 1. Shanxi Guofeng Coal Power Plant Co., Ltd., Lyuliang 032200, China;
    2. Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China;
    3. Dongfang Boiler(Group) Co., Ltd., Zigong 643001, China
  • Received:2018-07-01 Online:2018-08-05 Published:2018-11-01
  • Supported by:
    This work is supported by Key Project of the National Thirteen-Five Year Research Program of China (No.2016YFB0600205).

摘要: 针对燃用劣质煤的循环流化床(CFB)锅炉,通过锅炉本体设计的改进、烟气净化系统的优化,提出炉内清洁高效燃烧+炉内细石灰石粉脱硫+炉内SNCR脱硝+尾部烟气循环流化床半干法多污染物联合脱除的技术路线,并在2台300 MW CFB锅炉上进行验证实验。结果表明,通过燃烧调整、脱硫与脱硝的匹配,CFB锅炉可以顺利实现NOx、SO2和粉尘的超低排放,并且在经济性方面较传统工艺具有明显优势。

关键词: 循环流化床锅炉, 低床压降, 低能耗, 超低排放, 半干法

Abstract: By improving the boiler design and optimizing the flue gas cleaning system, a new technical route is proposed for CFB boilers burning low-rank coals, in which four technologies are implemented together, i.e., the ultra-clean and high-efficiency combustion in furnace, desulfurization with small limestone in furnace, SNCR denitrification system and joint removal of multi-pollutants in semidry flue gas cleaning system. The verification experiment are carried out on two 300 MW CFB boilers. From the results it is shown that ultra-low emission of NOx, SO2 and dust can be realized by way of combustion adjustment and coordination of the desulfurization and denitrification. Moreover, this technical route has obvious advantages in economy over the conventional technologies.

Key words: circulating fluidized bed boiler, low bed pressure drop, low energy consumption, ultra-low emission, semidry

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