华电技术 ›› 2016, Vol. 38 ›› Issue (7): 1-3.

• 研究与开发 •    下一篇

煤粉解耦燃烧器的开发

  

  1. 1.山西三合盛节能环保技术股份有限公司,太原〓030006;2.山西大学 资源与环境工程研究所,太原〓030006;3.拉玛大学,德克萨斯州博蒙特〓77710;4.中国科学院过程工程研究所多相复杂系统国家重点实验室,北京〓100190
  • 出版日期:2016-07-25 发布日期:2016-09-23

Coal powder decoupling combustor development

  1. 1.Shanxi Sanhesheng Environmental Protection and Energy Saving Technology Corporation, Taiyuan 030006, China; 2.Institute of Resources and Environment Engineering, Shanxi University,Taiyuan 030006, China; 3.Lamar University, Beaumont 77710,USA; 4. Institute of Process Engineering, Chinese Academy of Science State Key Laboratory of Multiphase Complex System, Beijing 100190, China
  • Online:2016-07-25 Published:2016-09-23

摘要:

摘要:分析了煤粉燃烧初期降低NOx排放的机制,介绍了一种适用于低挥发分难燃煤的直流解耦燃烧器,该燃烧器采用水平浓淡多级分级燃烧形式,通过集粉稳焰器等进行浓测煤粉气流的再次浓淡分离,并强化了向火侧超浓气流的加热,在提高稳燃能力的同时,有效利用煤自身热解气化产物,深化微观空气分级燃烧,减少了NOx的生成。对1025t/h锅炉解耦燃烧器进行模拟计算和冷、热态试验,有效验证了煤粉解耦燃烧器的设计思路。

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Abstract:

Abstract:Coal powder burning initial stage low NOx emission principle was analyzed. A kind of direct flow decoupling combustor for low volatile matter was introduced. This combustor applied horizontal multistage staged combustion. Thick side coal powder flow can be separated into thick and thin by powder collector, flame holder and other devices. Heat to flame side ultra thick flow was enhanced. Besides increased the combustion stability, the coal pyrolysis and gasification production was efficiently utilized. Microcosmic air staged combustion was deepened. NOx generation was reduced. Based on the simulation calculation, coldstage and hotstage experiment on 1025t/h boiler decoupling combustor, the design thought of coal powder combustor was proved. 

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