中国电力 ›› 2016, Vol. 49 ›› Issue (7): 106-108.DOI: 10.11930/j.issn.1004-9649.2016.07.106.03

• 发电 • 上一篇    下一篇

600 MW循环流化床锅炉燃煤粒度的控制探讨

代培基, 胡晓霞, 罗明鑫   

  1. 四川白马循环流化床示范电站有限责任公司,四川 内江 641005
  • 收稿日期:2016-02-22 出版日期:2016-07-20 发布日期:2016-07-28
  • 作者简介:代培基(1973—),男,重庆江津人,助理工程师,从事循环流化床锅炉检修工作。E-mail: 17038572@shenhua.cc

Exploration on Coal Particle Size Control for 600-MW CFB Boilers

DAI Peiji, HU Xiaoxia, LUO Mingxin   

  1. Sichuan Baima CFB Demonstration Power Plant Co., Ltd., Neijiang 641005, China
  • Received:2016-02-22 Online:2016-07-20 Published:2016-07-28

摘要: 在大型循环流化床锅炉中,为保证炉内物料流化良好、燃烧充分,对燃煤粒度分布有严格的控制。通过对300 MW循环流化床锅炉机组破碎筛分系统运行中出现的问题分析,提出了破碎筛分系统优化设计为两级破碎和三级筛分,并且将此优化设计应用到600 MW循环流化床机组上,实际运行证明,燃煤的破碎和筛分系统通过优化设计和良好的维护可以达到锅炉运行的粒度要求。

关键词: 火力发电厂, 循环流化床锅炉, 燃煤粒度, 破碎系统, 筛分系统

Abstract: To ensure the good fluidization and sufficient combustion in large CFB boilers, the control over the coal particle size distribution is quite strict. Through the analysis on the issues in the screening system operation of a 300-MW CFB boiler, the optimized design of the two-stage crushing and the three-stage screening is put forward and applied to a 600-MW CFB boiler. The practical operation proves that, based on the design optimization and good maintenance of the crushing and screening system, the coal particle sizes can meet the boiler operation requirements.

Key words: thermal power plant, CFB boiler, coal granularity, crushing system, screening system

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