Experimental research on pulverized coal power station blending with semi-coke
YANG Zhongcan
CHENG Guoan
LI Yan
WANG Zhichao
YAO Wei
Abstract：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 altemative 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.
Keywords：pulverized coal fired boilersemi-cokeabrasionpre-mixingblending ratiolowpollution
Publication Date：2017-01-01