660MW燃煤机组锅炉飞灰颗粒物排放特征研究

朱志飞; 王礼鹏; 祁慧; 张成; 赵永椿; 陈刚; 丘纪华; 张军营

660MW燃煤机组锅炉飞灰颗粒物排放特征研究

1.
广东省粤电集团有限公司沙角C电厂, 广东东莞 523936;
2.
华中科技大学煤燃烧国家重点实验室, 湖北武汉 430074

基金项目: 国家重点基础研究发展规划（973计划，2013CB228500）

详细信息

通讯作者:
赵永椿（1982-），男，副教授，E-mail：yczhao@hust.edu.cn

中图分类号: TQ534.9
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- 文章访问数: 1339
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- 被引次数: 0
出版历程
- 收稿日期: 2013-10-22
- 修回日期: 2013-12-07
- 刊出日期: 2014-03-31

Emission characteristics of fine particulate matters from a 660 MW coal-fired bolier

1.
Shajiao C Power Station, Guangdong Yudean Group Co., LTD. Dongguan 523936, China;
2.
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China

摘要

摘要: 应用自动烟尘测试仪在沙角C电厂1^#炉静电除尘器前进行飞灰颗粒物采集，分析了煤种、负荷对飞灰细颗粒排放特性的影响，同时对飞灰颗粒粒径分布、化学成分、矿物含量和形貌特征等进行了研究。结果表明，机组负荷越高，飞灰颗粒越细，生成的PM₁和PM_2.5越多，但总的烟尘排放浓度随负荷升高而降低；随着伊泰煤的掺烧比例增大，飞灰颗粒粒径分布向细颗粒区域移动，PM₁和PM_2.5的含量增大。低负荷时易形成含有熔融小球体的煤胞结构，高负荷时易形成多孔煤胞。高低负荷和不同配煤的燃煤颗粒物矿物成分类似。
- 燃煤电厂 /
- 细颗粒物 /
- 排放特性 /
- 粒径分布 /
- 混煤
Abstract: Particulate matter from coal combustion is one of the most main atmospheric pollutants in urban China currently. It has caused serious damage to the environment and human health. A 3012H type automatic smoke-dust(flue-gas) monitor was used to collect PMs in front of the ESP of 1^# boiler in Shajiao C power plant in Humen. The influence of boiler load and coal type on the emission characteristics of the fly ash was studied. The particle size distribution, chemical composition, mineral constituent and morphology characteristics of the fly ash were also analyzed. The results indicate that the fractions of PM₁ and PM_2.5 increase with the rising of boiler load, however, the concentration of the total smoke-dust decreases. The level of PM₁ and PM_2.5 becomes higher when the blending ratio of Yitai coal increases. The coal is easy to form coal cells containing molten spherules when burned in a high load boiler, and to form porous cenospheres when burned in a low load boiler. The mineral component of the ashes collected from different situations is similar.
- coal-fired power plant /
- PM /
- emission characteristics /
- sizedistribution /
- blended coal

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