Jian-an Zhou1,2 �� Xue-kai .Jiang2,3 �� Jian-bo Xie1,2 �� Hua Zhang1,2 �� Lei .Li2 �� Bao Wang 1,2 �� Hong-wei .Ni1,2
1 State Key Laboratory of Refractories and Metallurgy , WuhanUniversity of Science and Technology , Wuhan 430081 ,Hubei , China 2 Key Laboratory of Ferrous Metallurgy and Resources Utilization, Ministry of Education , Wuhan University of Science and Technology , Wuhan 430081 , Hubei , China 3 Guangxi Liuzhou Iron and Steel Group Co., Ltd. ,Liuzhou 545002 , Guangxi , China
Jian-an Zhou1,2 �� Xue-kai .Jiang2,3 �� Jian-bo Xie1,2 �� Hua Zhang1,2 �� Lei .Li2 �� Bao Wang 1,2 �� Hong-wei .Ni1,2
1 State Key Laboratory of Refractories and Metallurgy , WuhanUniversity of Science and Technology , Wuhan 430081 ,Hubei , China 2 Key Laboratory of Ferrous Metallurgy and Resources Utilization, Ministry of Education , Wuhan University of Science and Technology , Wuhan 430081 , Hubei , China 3 Guangxi Liuzhou Iron and Steel Group Co., Ltd. ,Liuzhou 545002 , Guangxi , China
ժҪ In order to improve the calori.c value and the recovery yield of converter gas during the steelmaking process, a novel and thermodynamically admissible process was proposed. This method involved injecting pulverized coal into the vaporization cooling .ue of a converter, and the approach was developed based on an industrial 30 t converter. The e.ects of temperature, O2 content, and the volumetric ratio of CO to CO2 on the conversion of the mixed components of gas were analyzed using thermodynamic calculations. Furthermore, the e.ect of the injection rate on the quality and quantity of gas was investigated. The results show that the O2 and CO2 components of .ue gas decrease as the injection rate increases, whereas the CO and H2 components synchronously increase. With the injection rate of 30.kg min .1, the O2 and CO2 components of the gas decreased by 64.12 and 41.19%, respectively, while the CO and H2 increased by 20.09 and 236.84%, respectively, and the recovery time of gas increased by 11.61%, compared to non-injection.
Abstract��In order to improve the calori.c value and the recovery yield of converter gas during the steelmaking process, a novel and thermodynamically admissible process was proposed. This method involved injecting pulverized coal into the vaporization cooling .ue of a converter, and the approach was developed based on an industrial 30 t converter. The e.ects of temperature, O2 content, and the volumetric ratio of CO to CO2 on the conversion of the mixed components of gas were analyzed using thermodynamic calculations. Furthermore, the e.ect of the injection rate on the quality and quantity of gas was investigated. The results show that the O2 and CO2 components of .ue gas decrease as the injection rate increases, whereas the CO and H2 components synchronously increase. With the injection rate of 30.kg min .1, the O2 and CO2 components of the gas decreased by 64.12 and 41.19%, respectively, while the CO and H2 increased by 20.09 and 236.84%, respectively, and the recovery time of gas increased by 11.61%, compared to non-injection.
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2018, Vol. 25 
