A novel model for cost performance evaluation of pulverized coal injected into blast furnace based on effective calorific value
来源期刊：中南大学学报(英文版)2015年第10期
论文作者：XU Run-sheng ZHANG Jian-liang ZUO Hai-bin LI Ke-jiang SONG Teng-fei SHAO Jiu-gang
文章页码：3990 - 3998
Key words：blast furnace; pulverized coal injection; effective calorific value; cost performance; evaluation model
Abstract: The combustion process of pulverized coal injected into blast furnace involves a lot of physical and chemical reactions. Based on the combustion behaviors of pulverized coal, the conception of coal effective calorific value representing the actual thermal energy provided for blast furnace was proposed. A cost performance evaluation model of coal injection was built up for the optimal selection of various kinds of coal based on effective calorific value. The model contains two indicators: coal effective calorific value which has eight sub-indicators and coal injection cost which includes four sub-indicators. In addition, the calculation principle and application of cost performance evaluation model in a Chinese large-scale iron and steel company were comprehensively introduced. The evaluation results finally confirm that this novel model is of great significance to the optimal selection of blast furnace pulverized coal.
XU Run-sheng(徐润生)1, ZHANG Jian-liang(张建良)1, ZUO Hai-bin(左海滨)2, LI Ke-jiang(李克江)1, SONG Teng-fei(宋腾飞)1, SHAO Jiu-gang(邵久刚)1
(1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,
Beijing 100083, China;
2. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing,
Beijing 100083, China)
Abstract:The combustion process of pulverized coal injected into blast furnace involves a lot of physical and chemical reactions. Based on the combustion behaviors of pulverized coal, the conception of coal effective calorific value representing the actual thermal energy provided for blast furnace was proposed. A cost performance evaluation model of coal injection was built up for the optimal selection of various kinds of coal based on effective calorific value. The model contains two indicators: coal effective calorific value which has eight sub-indicators and coal injection cost which includes four sub-indicators. In addition, the calculation principle and application of cost performance evaluation model in a Chinese large-scale iron and steel company were comprehensively introduced. The evaluation results finally confirm that this novel model is of great significance to the optimal selection of blast furnace pulverized coal.
Key words:blast furnace; pulverized coal injection; effective calorific value; cost performance; evaluation model
