Improvement of Performance Calculation Methods for Pulverized Coal and Blast-furnace Gas Co-fired Boilers

2018 2nd International Conference on Power and Energy Engineering

Ye, Yalan^1 ; Wang, Hongming^1 ; An, Xiang^1 ; Jiang, Wenhao^2

Jiangsu Maritime Institute, Nanjing, Jiangsu

211170, China^1

MCC Huatian Engineering and Technology Corporation, Nanjing, Jiangsu

210000, China^2

关键词: Blast furnace gas;    Conventional fuel;    Exhaust gas temperatures;    Performance calculation;    Performance test codes;    Performance tests;    Pollutant emission;    Special properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/192/1/012006/pdf
DOI  :  10.1088/1755-1315/192/1/012006

来源: IOP

【 摘 要 】

In power plants of steel mills, the performance of pulverized coal and blast-furnace gas co-fired boilers was tested according to GB/T10184-2015 "Performance test code of utility boiler". However, the calculation and analysis models in this code are mainly based on conventional fuels. Besides, the special properties of blast furnace gas were not taken into account. Therefore, the code GB/T10184-2015 is not suitable to be directly used for pulverized coal and blast furnace gas co-fired boilers. According to the differences between co-fired boilers and conventional boilers, the key points for calculating the performance of co-fired boilers were analyzed on the basis of GB/T10184-2015, and the corresponding improved methods were proposed, in view of fuel composition conversion, combustion calculation, coal feed rate, exhaust gas temperature value, and pollutant emission concentration conversion. The results can provide reference for the performance test of such boilers, with certain practical significance.