摘要
在充分掌握兰炭燃料特性基础上,首次开展电站煤粉锅炉掺烧兰炭试验,系统地分析典型兰炭与配中速磨煤机直吹式制粉系统的烟煤锅炉的适应性。认为电站煤粉锅炉燃用兰炭在技术上是可行的,试验机组可以实现安全稳定燃用33%比例的兰炭。电站锅炉燃用兰炭具有减轻炉内结渣、大幅降低烟气污染物生成量、对低热值煤具有较好替代作用等优势。针对兰炭对制粉系统以及机组运行可能产生的影响,建议采用"利用制粉系统研磨出力余量大比例掺烧兰炭"的预混掺烧兰炭掺烧方式以及"预混+防磨+燃烧调整"的燃用兰炭原则。
Based on the full grasp of fuel properties of the semi-coke, the blending of semi- coke on a pulverized coal power station is carried out for the first time, and the adaptability of typical semi-coke on bituminous boiler with medium speed mill pulverizing system is systematic analyzed. The pulverized coal power station burning with semi-coke is technically feasible. The experimental boiler can blend 33 % semi-coke stability. Blending with semi-coke has the advantage of reducing slagging, significantly reducing the pollutants generated and alternative the low calorific value coal. Considering the effect of semi-coke on the milling system as well as plant operation, the premix blending mode of utilizing the milling system output margin blending semi-coke and the burning principle of premixing coupled with anti- wearing and combustion adjustment are recommended.
出处
《锅炉技术》
北大核心
2017年第3期31-36,共6页
Boiler Technology
基金
国家能源应用技术研究及工程示范资助项目(20130303)
陕西省科技统筹创新工程计划资助项目(2015KTZDGY05-03)
关键词
兰炭
电站煤粉锅炉
掺烧
适应性
semi-coke
pulverized coal power station
blending
adaptability
