Analysis on grindability and combustion performance of biomass fuel for mixed injection of blast furnace
LIU Zhu-lin1, JIANG You-yuan2, SHOU Qing2, WANG Xiong1, ZHANG Bo1
1. School of Metallurgical and Material Engineering, Hunan University of Technology, Zhuzhou 412007, Hunan, China; 2. Ironmaking Plant, Xiangtan Iron and Steel Corporation of Hunan Hualing, Xiangtan 411101, Hunan, China
Abstract：In order to explore the feasibility of biomass fuel for blast furnace injection and alleviate the problems of energy and environment, the dried biomass fuel (peanut shell)was mixed with the pulverized coal injection into blast furnace at different rates and crushed, and the physical and chemical properties of the crushed materials were tested and the combustion process was analyzed. And the feasibility of biomass fuel for blast furnace injection without the traditional carbonization process was studied. The results showed that the proper addition of peanut shell was beneficial to improve the grindability index of the mixed materials, and reduce the ash content and sulfur content of coal powder, which is beneficial to the smelting process control. Moreover, the activation energy of the mixed material in the volatilization analysis combustion stage and the fixed carbon combustion stage was significantly reduced, so as to promote the fuel combustion. When 20% peanut shell was added, the combustion temperature of the fixed carbon in the mixed material was reduced by about 40 ℃ compared with anthracite.
刘竹林, 蒋友源, 寿擎, 汪雄, 张波. 高炉混合喷吹用生物质燃料可磨性及燃烧性能分析[J]. 中国冶金, 2020, 30(3): 8-12.
LIU Zhu-lin, JIANG You-yuan, SHOU Qing, WANG Xiong, ZHANG Bo. Analysis on grindability and combustion performance of biomass fuel for mixed injection of blast furnace[J]. China Metallurgy, 2020, 30(3): 8-12.
LIU Zhu-lin, BI Xue-gong,GAO Ze-ping,et al. Preparation and properties of agricultural residuals-iron concentrate pellets[J]. Advances in Materials Science and Engineering, 2017(7):1.
LIU Zhu-lin, BI Xue-gong, GAO Ze-ping, et al.Carbothermal reduction of iron ore in its concentrate-agricultural waste pellets[J]. Advances in Materials Science and Engineering, 2018(2):1.
2020, Vol. 30 
