600 MW循环流化床锅炉燃煤粒度的控制探讨  

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

作　　者：代培基 胡晓霞[1] 罗明鑫 

机构地区：[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

出　　处：《中国电力》2016年第7期106-108,共3页Electric Power

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。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.

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 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]