摘要
电炉炼钢过程中在废钢预热装置中添加废旧轮胎、废弃塑料等城市废弃物,可以减少电炉冶炼碳基添加剂。但废弃物在废钢预热通道内遇高温烟气会燃烧,生成大量的污染物。通过对废弃物在不同温度、不同粒径、不同停留时间等条件下,反应产生污染物进行研究,获得在电炉废钢预热装置中添加城市废弃物最佳的物性参数和工作条件。在利用城市废弃物预热废钢时候,不增加烟气处理设施,烟气也能达标排放,使得电炉处理城市废弃物从技术上和经济上可行。
In the process of electric furnace steelmaking,adding urban waste such as discarded tires and plastic in steel scrap preheating unit can reduce the need for carbon-based additives.However,the combustion of waste materials in steel scrap preheating channel at high temperatures generates a large amount of pollutants.By studying pollutant generation of waste materials under different conditions,including varying temperatures,particle sizes,and residence times,optimal physical parameters and operating conditions for adding urban waste in the electric furnace steel scrap preheating unit were obtained.When utilizing urban waste to preheat steel scrap,without the addition of smoke treatment facilities,emissions can still meet the standard,making the process of electric furnace treatment of urban waste technically and economically feasible.
作者
周涛
王方明
王毅
ZHOU Tao;WANG Fangming;WANG Yi(CISDI Thermal Engineering Environmental Protection Engineering Technology Co.,Ltd.,Chongqing 401122,China)
出处
《炼钢》
CAS
北大核心
2024年第3期82-88,共7页
Steelmaking
基金
国家科技支撑计划项目(2015BAF03B00)。
关键词
电炉炼钢
城市废弃物
烟气污染物
试验研究
electric furnace steelmaking
urban waste
flue gas pollutants
experimental study
