华电技术 ›› 2010, Vol. 32 ›› Issue (7): 31-35.
• 研究与开发 • 上一篇 下一篇
詹恒芳,杨瑞雪,高强,荆华
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ZHAN Hengfang, YANG Ruixue, GAO Qiang, JING Hua
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摘要: 为检验黑龙江华电齐齐哈尔热电有限公司300MW机组掺烧褐煤的可行性,确定了额定负荷下褐煤掺烧时安全、稳定运行的最大比例。在1025t/h锅炉上采用烟煤、褐煤分磨、分燃烧器炉内掺烧方式并进行制粉系统出力、燃煤特性及不同掺烧方式下的锅炉效率试验。试验结果表明,最高掺烧褐煤比为54%,机组主要运行参数正常,在满负荷下未发生严重结焦。在相同负荷下,掺烧褐煤锅炉效率有所下降,但考虑煤价因素,掺烧褐煤机组成本大幅下降,经济效益显著提高。
关键词: 褐煤掺烧, 设备参数, 煤质特性, 试验数据, 经济性分析, 评估
Abstract: In order to verify the feasibility of ligniteblended burning in the 300MW unit of the Heilongjiang Huadian Qiqihaer Thermal Power Company Limited, the maximum ratio of the lignite in the ligniteblended burning was determined, which can ensure the safe and stable operation under the rated load. In the 1025t/h boiler, the bituminite and the lignite are pulverized separately, and blended and burned in furnace through different burners. The experiments of the pulverizing system output, the characteristics of the coal and the boiler efficiency in different ligniteblended burning mode were carried out. The experiment result shows that the maximum ratio of the lignite in the ligniteblended burning is about 54%, and in this condition, the main operation parameters of the unit are normal, and there was no serious slagging even at full load. Under the same load, the boiler efficiency of ligniteblended burning is decreased slightly. Considering the difference between the lignite and the bituminite prices, the cost of the unit with ligniteblended burning is decreased greatly, and the economical benefit of the unit increased obviously.
Key words: lignite-blended burning, parameters of equipment, characteristics of coal quality, test data, economical analysis, estimation
詹恒芳;杨瑞雪;高强;荆华. 褐煤掺烧的可行性分析与试验[J]. 华电技术, 2010, 32(7): 31-35.
ZHAN Hengfang;YANG Ruixue;GAO Qiang;JING Hua. Feasibility analysis and experiment of ligniteblended burning[J]. Huadian Technology, 2010, 32(7): 31-35.
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