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中小型钢铁企业节能技术研究及应用

发布时间:2018-11-07 08:21
【摘要】:钢铁行业是国民经济的重要支柱产业,同时也是传统的高耗能高污染的行业,钢铁工业能耗约占我国总能耗的15%左右。目前,我国钢铁行业能效水平与国际先进水平相比仍有较大的差距,尤其是中小型钢铁企业的能源利用水平偏低。针对适用于我国钢铁行业的节能技术进行研究,并对中小型钢铁企业生产过程中的余热余能利用及节约用电技术改造进行重点研究。主要工作和贡献如下:(1)分析了国内外钢铁行业节能现状,提出我国钢铁企业能效水平与国外先进企业相比仍有巨大的差距,尤其是余热余能的回收利用率偏低,节能潜力巨大。(2)从节能技术的内容、特点、使用条件和对象等方面,对适用于我国钢铁企业的节能技术进行研究和分析,重点研究余热余能回收利用及节约用电相关技术。(3)以某中型长流程钢铁联合企业为例,研究钢铁生产过程中余热余能回收利用技术以及节约用电技术的应用,开展一系列节能技术改造来提升能源利用水平,节能效果和经济效益显著。(4)针对钢铁企业生产工艺和用能系统复杂等特点,在具体节能技术的应用过程中提出了“主要工艺设备参数核算及选型、转炉煤气利用及并网方案比选、钢坯热装率及效益分析、能源测试”等方法,可作为同类项目的重要参考。对钢铁行业节能技术尤其是余热余能回收利用和节约用电技术进行了理论及应用研究,可以为我国钢铁行业特别是中小型钢铁企业的节能技术改造提供技术支持和重要参考。
[Abstract]:Iron and steel industry is not only an important pillar industry of national economy, but also a traditional industry with high energy consumption and high pollution. The energy consumption of iron and steel industry accounts for about 15% of the total energy consumption in China. At present, compared with the international advanced level, there is still a big gap in the energy efficiency level of China's iron and steel industry, especially the low level of energy utilization in small and medium-sized steel enterprises. The energy saving technology suitable for the iron and steel industry in our country is studied, and the technical transformation of the residual heat energy in the production process of small and medium-sized iron and steel enterprises as well as the saving of electricity is studied emphatically. The main works and contributions are as follows: (1) the present situation of energy saving in domestic and foreign steel industry is analyzed, and it is pointed out that there is still a huge gap between the level of energy efficiency of China's iron and steel enterprises and that of foreign advanced enterprises, especially the low recovery and utilization rate of residual heat energy. The potential of energy saving is huge. (2) from the aspects of the content, characteristics, use conditions and objects of energy-saving technology, this paper studies and analyzes the energy-saving technology suitable for iron and steel enterprises in China. This paper focuses on the technology of waste heat energy recovery and power saving. (3) taking a medium long process iron and steel enterprise as an example, the application of waste heat waste energy recovery and power saving technology in steel production process is studied. A series of energy saving technology revamping has been carried out to improve the level of energy utilization, with remarkable energy saving and economic benefits. (4) aiming at the complex production process and energy use system of iron and steel enterprises, In the process of application of specific energy-saving technology, the methods such as the calculation and selection of main process equipment parameters, the comparison and selection of converter gas utilization and grid connection scheme, the analysis of hot charging rate and benefit of billet, and the energy test are put forward. It can be used as an important reference for similar projects. The theory and application of energy saving technology, especially waste heat energy recovery and power saving technology in iron and steel industry are studied in theory and application, which can provide technical support and important reference for the energy saving technology reform of iron and steel industry in China, especially in small and medium-sized iron and steel enterprises.
【学位授予单位】:华南理工大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:TF089;TK018

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相关期刊论文 前1条

1 周佃民;李关定;李凯;陈忠平;刘云国;;钢铁企业节电节能措施及效果[J];电力需求侧管理;2008年06期



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