| 链篦机-回转窑铁矿氧化球团焙烧过程的分析 |
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| 引用本文： | 张宇,冯俊小,张材,谢知音,果乃涛. 链篦机-回转窑铁矿氧化球团焙烧过程的分析[J]. 钢铁, 2009, 44(7) |
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| 作者姓名： | 张宇 冯俊小 张材 谢知音 果乃涛 |
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| 作者单位： | 北京科技大学热科学与能源工程系,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划)课题(No.2007AA05Z215) |
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| 摘 要： | 为了降低链-回-环系统球团矿焙烧过程的能耗,对某工业装置进行了平衡测试和分析,得到了流图。分析表明,传热不可逆损和燃烧不可逆损是系统损的主要部分。建立了气体质流量、床层空隙率、床高、球团直径、烟气中氧含量等运行参数与损的关系。结果表明,适当减小气体质流量、床高和球团直径,增大床层空隙率,可以减小损。在其它条件不变的情况下,当烟气中二氧化碳浓度为1.0%～9.0%,将空气消耗系数控制在1.6～2.0,可使损最小。
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| 关 键 词： | 链篦机-回转窑-环冷机 不可逆 分析 铁矿氧化球团 系统节能 |
Exergy Analysis of Grate-Kiln Iron Ore Pellets Induration Process |
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| ZHANG Yu,FENG Jun-xiao,ZHANG Cai,XIE Zhi-yin,GUO Nai-tao. Exergy Analysis of Grate-Kiln Iron Ore Pellets Induration Process[J]. Iron & Steel, 2009, 44(7) |
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| Authors: | ZHANG Yu FENG Jun-xiao ZHANG Cai XIE Zhi-yin GUO Nai-tao |
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| Affiliation: | Department of Thermal Science and Energy Engineering;University of Science and Technology Beijing;Beijing 100083;China |
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| Abstract: | Exergy balance test and exergy analysis have been conducted to investigate the thermodynamic characteristics of iron ore pellets induration process in a grate-kiln plant in order to economize energy.And a diagram of exergy flows in the plant helps to identify the sources and quantify the exergy losses.Furthermore,the exergy analysis reveals that the irreversibility of heat transfer and combustion is the major source of exergy destruction.And the effects of some important operating parameters,such as flow ra... |
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| Keywords: | grate-kiln-cooler irreversibility exergy analysis iron ore pellet energy economy |
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