烧结环境除尘超低排放技术研究及生产应用

Study on ultra-low emission technology of sintering environmental dedusting and its production application

随着环保要求的日益提高,除尘系统的排放浓度标准日趋严格,企业环保意识的不断增强。超低排放已成为除尘技术发展的重要方向,而系统设计在超低排放除尘技术中起着十分关键的作用。本文通过对抽风罩罩口风速、管网阻力平衡、除尘器过滤风速及覆膜滤料四个除尘系统颗粒物排放控制的主要影响因素进行研究与分析,得到了相应的关键设计参数,将之实际应用于龙钢3~#烧结机配料除尘系统中,实现了粉尘排放浓度≤10 mg/Nm^3的要求,为类似工程超低排放提供了借鉴。

With the ever-rising requirements of the environment protection, the emission concentration standard of the dust removal system is becoming stricter, and the environmental protection consciousness of enterprise is increasing. Ultra-low emis- sion has become an important development direction of dust removal technology, while the system design plays a key role in the ultra-low emission dust removal technology. In this paper, through research and analysis of the four main influencing factors of particulate emission control of dust removal system, including exhaust hood inlet （interface） air velocity, pipeline resistance bal- mace, deduster filtering velocity and FIFE membrane filter material etc., and the key corresponding design parameters are ob- tained. The technology is applied in the dust removal system of sintering proportioning room in Shanxi Longmen Iron ＆ Steel Co. , Ltd. The emission concentration of the system is lower than 10 mg/Nm3 ,which provides an important reference for similar pro- jects to achieve ultra-low emission requirements.