高炉富氧喷煤经济评价模型  

Model for Economic Evaluation of Iron Production With Oxygen-Enriched and Pulverized Coal Injection

作　　者：王广伟[1] 张建良[1] 邵久刚[1] 左海滨[1] 邱家用[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《钢铁》2013年第11期21-26,共6页Iron and Steel

基　　金：国家自然科学基金委员会与宝钢集团有限公司联合资助项目(51134008)

摘　　要：在高炉多区域热质平衡数学模型基础之上建立了高炉富氧喷吹煤粉经济评价模型,并利用模型计算了高炉富氧喷煤之后高炉相关操作参数和吨铁冶炼成本的变化.结果表明,增加富氧率提高喷煤比可以有效降低吨铁冶炼成本,降低成本的幅度主要取决于煤粉和焦炭之间价格差别（煤焦差价）和氧气单价,煤焦差价越高、氧气单价越低,吨铁成本降低幅度越大,对应的最佳富氧率水平越高,在目前的原燃料成本条件下,降低成本的最佳富氧率可以达到15％～18％.此外,该模型还可够应用于不同高炉流程冶炼生铁的经济效益评价,为探索低成本炼铁方法提供支持.An economic evaluation model based on more regional heat and mass balance mathematical model was development. And the model was used to calculate the changes of operating parameters and the iron production cost with oxygen-enriched and pulverized coal injection. The results show that increasing oxygen-enriched rate and pulverized coal injection rate can effectively reduce the cost of iron production. The reduction depends on price of coke subtracting coal and oxygen price. The higher price of coke subtracting coal and the lower price of oxygen, the grea- ter decrease price of iron production and the higher corresponding best oxygen-enriched level. Under the condition of present raw material and oxygen cost, the best oxygen-enriched level is about 15 %-18% . Furthermore, the model could be applied to calculate the economic evaluation of different blast furnace process, providing a way to explore low-cost iron production method.

关 键 词：高炉 富氧 喷煤 经济模型 

分 类 号：TF538.63[冶金工程—钢铁冶金]