MAO Xiaofei, WU Ying, ZENG Guofang, et al. Experimental research on blended coal combustion in a 700MW unit boiler[J]. Thermal power generation, 2014, 43(5): 69-74.
MAO Xiaofei, WU Ying, ZENG Guofang, et al. Experimental research on blended coal combustion in a 700MW unit boiler[J]. Thermal power generation, 2014, 43(5): 69-74.DOI:
700MW机组锅炉混煤掺烧试验研究
摘要
对江西新昌电厂的5种常用煤进行了分类
确定了3种参与混煤掺烧试验的煤种
并通过热重试验分析不同比例混煤的燃烧特性。试验共选取了4个负荷点
制定了7种混煤方案、14种上煤方式
并在每个混煤方案下又进行了变氧量试验
以确定最佳氧量、获得不同负荷下的最佳混煤掺烧方案。通过测定各工况下的锅炉热效率
给出了最佳上煤方式。
Abstract
Against five commonly used coals in Jiangxi Xinchang Power Plant
three was selected to be applied in blended coal combustion.By thermogravimetric analysis
combustion characteristics of the mixture of the above three coal were analyzed.During the field blended coal combustion experiment
four load points were selected
seven coal mixtures were prepared and fourteen ways of conveying the coal to furnace were developed.Moreover
under each coal blending scheme
the optimal oxygen content was obtained by oxygen varying test
to ascertain the optimal coal blending scheme.At last
by measuring the boiler efficiency in different operating conditions
the recommended coal conveying scheme was obtained.