检索结果-南通市图书馆

Non-isothermal reduction process analysis of iron-bearing burden with charging iron coke hot briquette under simulated blast furnace conditions

引用

Journal of iron and Steel Research International 2022年第5期29卷 741-750页

作者： Hong-tao Wang Man-sheng Chu Ji-wei Bao Zheng-gen Liu Hong-ming Long School of Metallurgy Engineering Anhui University of TechnologyMa’anshan243032AnhuiChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang110819LiaoningChina Key Laboratory of Metallurgical Emission Reduction&Resources Recycling Anhui University of TechnologyMinistry of EducationMa’anshan243032AnhuiChina

Highly reactive iron coke hot briquette(ICHB)prepared by carbonizing the agglomerate of iron-bearing substance and blended coals is regarded as an alternative fuel to mitigate carbon emission and energy consumption of blast ***,the reduction process of iron-bearing burden is extremely crucial for blast furnace *** effects of ICHB on the non-isothermal reduction process of iron-bearing burden with different reduction properties were thus experimentally studied under the conditions of simulated blast furnace lump zone(below 1100°C),and the related mechanism was discussed and *** results showed that the non-isothermal reduction process of iron-bearing burden is promoted by adding *** the charging ratio of ICHB is increased from 0%to 30%,the reduction degree of pellet is increased from 22.91%to 36.62%,but the increased amplitude is leveled ***,the reduction degree of sinter is raised from 35.10%to 93.33%.It is also indicated that the promotion effect of ICHB on the non-isothermal reduction of iron-bearing burden depends on the reduction property of *** with the burden with poor reduction performance(such as pellet 1),the promotion is more significant for the burden with good reduction property(such as sinter 1)since the reduction reaction of iron oxide in iron-bearing burden and the gasification of carbon in ICHB are remarkably reinforced each *** practical application of ICHB in blast furnace should be utilized with highly reductive iron-bearing burden.

关键词： iron coke hot briquette Non-isothermal reduction iron-bearing burden Low carbon emission Blast furnace

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Numerical Analysis of Blast Furnace Performance Under Charging iron-bearing burdens With High Reducibility

引用

Journal of iron and Steel Research International 2007年第2期14卷 13-19页

作者： CHU Man-sheng GUO Xian-zhen SHEN Feng-man YAGI Jun-ichiro NOGAMI Hiroshi Institute of Ferrous Metallurgy Northeastern University Shenyang 110004 Liaoning China ironmaking Plant Anyang Steel Company Limited Anyang 455004 Henan China Institute of Multidisciplinary Research for Advanced Materials Tohoku University Sendai 980-8577 Japan

The reducibility of iron-bearing burdens was emphasized for improving the operation efficiency of blast furnace. The blast furnace operation of charging the burdens with high reducibility has been numerically evaluated using a multi-fluid blast furnace model. The effects of reaction rate constants and diffusion coefficients were investigated separately or simultaneously for clarifying the variations of furnace state. According to the model simulation results, in the upper zone, the indirect reduction of the burdens proceeds at a faster rate and the shaft efficiency is enhanced with the improvement under the conditions of interface reaction and intra-particle diffusion. In the lower zone, direct reduction in molten slag is restrained. As a consequence, CO utilization of top gas is enhanced and the ratio of direct reduction is decreased. It is possible to achieve higher energy efficiency of the blast furnace, and this is represented by the improvement in productivity and the decrease in consumption of reducing agent. The use of high-reducibility burdens contributes to a better performance of blast furnace. More efforts are necessary to develop and apply highreducibility sinter and carbon composite agglomerates for practical application at a blast furnace.

关键词： blast furnace iron-bearing burden reducibility multi-fluid model 3-interface shrinking core model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：