钢铁工业废气及PM_(2.5)排放特性与污染控制对策  

Exhaust Gas of Iron & Steel Industry and Emission Characteristics of PM_(2.5) and Pollution Control Measures

作　　者：杨晓东[1] 张玲[1] 姜德旺[1] 邢芳芳[1] 刘锟[1] 

机构地区：[1]北京京诚嘉宇环境科技有限公司冶金清洁生产技术中心,北京100053

出　　处：《工程研究（跨学科视野中的工程）》2013年第3期240-251,共12页JOURNAL OF ENGINEERING STUDIES

摘　　要：钢铁行业在新的发展时期须从战略发展的高度制定行业废气污染控制的对策和技术路线。本文收集国际先进钢企主要废气污染物排放因子,对比分析中国钢企的排放水平,并按照国家新颁布的环境空气质量标准和行业污染物排放标准要求,进行行业全工序各主要污染物大气等标污染负荷分析,系统判别主要污染工序和重点污染物,明确主要控制方向;通过国内外文献资料的综合分析,重点介绍主要生产工序的颗粒物及细颗粒排放特性。针对国家当前节能减排要求和行业废气污染控制存在的问题,提出行业废气污染控制应从行业发展的多种需求整体出发,综合考虑行业布局调整、加快技术升级、注重前端和过程控制及末端治理强化多污染物协同控制的技术路线,最大限度地减轻行业的废气污染,并就深化行业废气污染控制提出相关建议。With the rapid development of the economy and society, fine particles pollution, like PM2.5 and O3 become very serious in the region of Beijing-Tianjin-Hebei, and the Yangtze River area. Iron and Steel Industry,as one of the important basic industries of the national economy, is not only the emission sources of the primary fine particle（PM2.5）, but also the producer of the secondary fine particle（SO2, NOx）. In the new development period, Iron and Steel industry must re-examine and develop pollution control strategies and technology roadmap from a strategic height. The paper collects the emission factors of the international advanced iron and steel companies, and compares that with the emission factors of the domestic steel companies. It also analyzes the standard load of each pollutant in the whole process of the iron and steel industry, systematically identifies the major polluting process and key pollutants and gives a clear main control direction in accordance with the requirements of the new national air quality standard and industry pollutant emission standards. Through a comprehensive analysis of domestic and foreign literature, the paper focuses on the fine particles of the main production processes and the emission characteristics of the fine particles. According to the requirements of energy-saving and discharge-reducing and the problems of the exhaust pollution in this industry, and with the aim of maximum reduction on pollution emissions of the industry, the authors propose that the exhaust pollution control should consider the various needs of the industry development as a whole, combine the industry layout adjustment, the accelerating upgrading technology and the control of the front-end, the process and the end-treatment in the new development period. In addition, the end-treatment should take the multi-pollutant control technology route. Finally, the paper also proposes the recommendations on how to deepen the exhaust air pollution control of the industry.

关 键 词：钢铁工业 废气排放 PM2 5 污染控制 

分 类 号：X757[环境科学与工程—环境工程]