烧结烟气污染物治理工艺研究进展

林文龙; 张玉柱; 刘超; 刘东辉; 邢宏伟; 康月

doi:10.13205/j.hjgc.202306032

烧结烟气污染物治理工艺研究进展

doi: 10.13205/j.hjgc.202306032

1. 华北理工大学冶金与能源学院, 河北唐山 063210;
2. 冶金工业规划研究院, 北京 100013

基金项目:

国家自然科学基金"生物质煤焦-烟气偏析循环烧结污染物协同控制基础研究"（51874139）；唐山市科技计划项目"烧结烟气多污染物协同控制关键技术研发"（20150214C）

详细信息

作者简介:
林文龙(1987-),男,博士生,主要研究方向为钢铁冶金废物资源化综合利用。Linwl2020@stu.ncst.edu.cn

通讯作者:
张玉柱(1956-),男,教授,主要研究方向为冶金资源综合利用。zyz@ncst.edu.cn

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- 文章访问数: 160
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- PDF下载量: 12
- 被引次数: 0
出版历程
- 收稿日期: 2022-08-05
- 网络出版日期: 2023-09-02

ADVANCES IN RESEARCH ON SINTERING FLUE GAS POLLUTANTS' TREATMENT PROCESSES

1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China;
2. China Metallurgical Industry Planning and Research Institute, Beijing 100013, China

摘要

摘要: 因国内铁矿品位较低，烧结矿已成为钢铁企业生产中必不可少的原料，但铁矿粉烧结会排放大量含颗粒物、SO_x、NO_x等污染物的烟气，是造成酸雨、臭氧层漏洞、PM_2.5污染等环境问题的重要原因，同时严重危害人体健康，亟须妥善治理。介绍了烧结烟气中几种污染物的产生机制及污染现状，并对污染物的治理手段及新兴治理技术进行了归纳与分析，比较发现单独的污染物治理手段已不能满足钢铁企业节能高效生产与超低排放的要求，协同治理手段仍待完善，因此需根据企业污染物特性及生产指标、排放要求等情况，选择适合的一种或多种协同治理工艺进行烟气治理。在此基础上提出利用全焦粉、生物质燃料等新燃料工艺来降低源头污染物的引入，并与末端治理手段相结合的综合治理方式，以期实现在烧结污染物治理过程中的"首""尾"呼应，达到"1+1>2"的治理效果，为我国钢铁产业的各工序污染物防治提供参考，助力钢铁企业高质量、绿色发展。
- 烧结烟气 /
- 污染物治理工艺 /
- 节能 /
- 降碳 /
- 生物质燃料
Abstract: Due to the low grade of domestic iron ore, sintered ore has become an essential raw material in steel production. However, iron ore powder sintering emits a large amount of flue gas containing dust, S, N oxides and other pollutants, which is an important reason for environmental problems such as acid rain, ozone layer leaks, and PM_2.5. These pollutants also pose a serious threat to human health, so proper management is urgently needed. This article introduced the generation mechanisms and current pollution status of several pollutants in sintering flue gas, and summarized the treatment methods and emerging treatment technologies for pollutants. It was found that individual pollutant treatment method could no longer meet the requirements of ultra-low emission of steel enterprises, and collaborative treatment methods also had their own shortcomings. Therefore, enterprises need to consider the characteristics of pollutants, production indicators, emission requirements, and other factors, and choose one or more suitable collaborative treatment processes for flue gas treatment. On this basis, a comprehensive treatment method using new fuel processes, such as coke powder and biomass fuel to reduce flue gas pollutants from the source, and combining it with cooperative treatment methods for pollutants at the end of the process was proposed, in order to realize the whole cycle treatment process of sintering pollutants. This paper could provide a reference for the prevention and control of pollutants in iron and steel industry in China and help the high-quality and green development of iron and steel enterprises.
- sintering flue gas /
- pollutant treatment process /
- energy conservation /
- carbon reduction /
- biomass fuel

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