Combustion features of Shenfu pulverized coal
Li Zenglin
Liu Ruili
Pang Qingtao
Cao Wen
Zhao Peng
Yan Xilong
Abstract：In order to provide a theoretical basis for coal-fired boiler utilization,pulverized coal produced from coal-fired boiler blending with Shenfu coal was investigated.Combustion characteristic of pulverized coal was studied by TG-DTG,and the influence of coal powder and heating rate on the combustion feature were also analyzed.Results show that under air atmosphere,the TG-DTG curves shift to high temperatures region with the increase of heating rate,and the ignition temperature,maximum weight loss rate,burnout index,as well as maximum weight loss temperature increase.The change of particle size and ash content demonstrates less effect on the ignition temperature at heating rate of 10 ℃/min or 20 ℃/min.While,it affects the burnout index and comprehensive combustion features,the comprehensive combustion features of D coal is 1.51,which is better than that of the pulverized coal P with particle size of 74 μm and ash of 9.5％.
Keywords：combustion featurespulverized coalignition temperatureburnout indexpulverized coal-fired boiler
Publication Date：2017-01-01