洁净煤技术

2017, v.23;No.107(01) 80-85

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电站煤粉锅炉掺烧兰炭试验研究
Experimental research on pulverized coal power station blending with semi-coke

杨忠灿;程国安;李炎;王志超;姚伟;
YANG Zhongcan;CHENG Guoan;LI Yan;WANG Zhichao;YAO Wei;Xi'an Thermal Power Research Institute Co.,Ltd.;Jiayuguan Hongsheng ElectroThermal Co.,Ltd.;

摘要(Abstract):

为考察兰炭在电站煤粉锅炉上的适应性,确定兰炭在煤粉锅炉上的掺烧比例和方式,在充分掌握兰炭燃料特性基础上,在国内首次进行了配中速磨制粉系统的电站煤粉锅炉掺烧兰炭试验。试验结果表明,电站锅炉燃用兰炭具有减轻燃烧器喷口结渣、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,试验锅炉可以预混掺烧方式实现安全稳定燃用33%比例的兰炭。针对兰炭的强磨损、低燃尽特性对制粉系统以及锅炉安全经济运行可能产生的不利影响,提出了"预混+防磨+燃烧调整"的燃用兰炭原则。
To study the adaptability of semi-coke in power plant boiler,determine its blending ratio and the way when burned in pulverized coal fired boilers,based on the full grasp of fuel properties of the semi-coke,the blending and combustion test of semi-coke in a pulverized coal fired boiler of power station with medium speed mill pulverizing system was carried out for the first time at home. The results showed that blending and combustion with semi-coke had the advantages of reducing slagging,significantly reducing the pollutants generated and alternative the low calorific value coal,and that the pulverized coal fired boiler could blend 33% semi-coke stably by pre-mixing.Considering the effects of semi-coke on the milling system as well as boiler 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 were recommended.

关键词(KeyWords): 煤粉锅炉;兰炭;磨损;预混;掺烧比例;低污染
pulverized coal fired boiler;semi-coke;abrasion;pre-mixing;blending ratio;lowpollution

Abstract:

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基金项目(Foundation): 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)

作者(Author): 杨忠灿;程国安;李炎;王志超;姚伟;
YANG Zhongcan;CHENG Guoan;LI Yan;WANG Zhichao;YAO Wei;Xi'an Thermal Power Research Institute Co.,Ltd.;Jiayuguan Hongsheng ElectroThermal Co.,Ltd.;

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DOI: 10.13226/j.issn.1006-6772.2017.01.015

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