Abstract：To get through the bag filter technology route of high humidity and high corrosive pellet flue gas,thermal experimental study on pellet flue gas bag filter was carried out in two years. The test is the first special system research on pellet bag dust removal in China. The working volume of the experimental system was 10 000 m3/h and four types of new filters were developed to apply in the test. Analysis on the characteristics of dew corrosion in the test was also conducted. The test results showed that the “top vertical air inlet Bag Dust Collector” is suitable for purifying the flue gas of high-humidity and high-corrosion pellets. The emission concentration of particulate matter is less than 10 mg/m3,which meets the ultra-low emission requirements and the equipment pressure loss is 700-1 000 Pa. Analysis results about the four types of new developed filters indicated that the strength and air permeability of two types of filter media can meet the requirements for use. The dew corrosion analysis suggested that the end products of device corrosion include not only γ-Fe2O3,Fe3O4,δ-FeOOH and γ-FeOOH,but also a kind of white powdered substance X,which lays a technical foundation for the future implementation of pelletized bag dust removal engineering.
刘立, 姚群, 陈志炜, 许汉渝, 钱亦琛, 马晓辉. 高湿高腐蚀球团烟气袋式除尘试验[J]. 钢铁, 2020, 55(8): 187-192.
LIU Li, YAO Qun, CHEN Zhi-wei, XU Han-yu, QIAN Yi-chen, MA Xiao-hui. Treatment of high humidity and high corrosive pellet flue gas with bag filter[J]. Iron and Steel, 2020, 55(8): 187-192.
[1] 于勇,朱廷钰,刘霄龙. 中国钢铁行业重点工序烟气超低排放技术进展[J]. 钢铁,2019,54(9):1. (YU Yong,ZHU Ting-yu,LIU Xiao-long. Progress of ultral-low emission technology for key processes of iron and steel indusstry in China[J]. Iron and Steel,2019,54(9):1.) [2] 连风宝. 烧结(球团)烟气典型环保工艺的SO3排放及NaHSO3喷射脱SO3技术的工程应用[J]. 环境工程学报,http://kns.cnki.net/kcms/detail/11.5591.x.20190910.1617.006.html.(LIAN Feng-bao. SO3emission status from sintering (pellet) flue gas treated by typical environmentally friendly process and engineering application of NaHSO3 jet SO3 removal technology[J]. Chinese Journal of Environmental Engineering,http://kns.cnki.net/kcms/detail/11.5591.x.20190910.1617.006.html.) [3] 齐枫,李玉然,朱廷钰,等. 球团及球团烟气的硫平衡对比研究[J]. 河北冶金,2019(s1):58.(QI Feng,LI Yu-ran,ZHU Ting-yu,et al. Comparative study of sulfur balance on pellet and pellet flue gas[J]. Hebei Metallurgy,2019(s1):58.) [4] 杨全武. 梅钢三烧结节能环保生产实践[J]. 中国冶金, 2020, 30(5): 76. (YANG Quan-wu. Production practice of energy saving and environmental protection in Meishan Steel′s No.3 Sintering Plant[J]. China Metallurgy,2020,30(5):76.) [5] 周茂军,张代华. 宝钢烧结烟气超低排放技术集成与实践[J]. 钢铁,2020,55(2):144. (ZHOU Mao-jun,ZHANG Dai-hua. Technology integration and practice of ultra-low emission of sintering flue gas in Baosteel[J]. Iron and Steel,2020,55(2):144.) [6] 曹志林,郭风英. 静电除尘净化球团竖炉烟气技术研究[J]. 工业安全与防尘,1999(5):11. (CAO Zhi-lin,GUO Feng-ying. Research on technology of pellet shaft furnace flue gas treated by electrostatic precipitator[J]. Industrial Safety and Environmental Protection,1999(5):11.) [7] 赵玉林,门学臣,穆海芳. 球团竖炉电除尘器的创新技术设计与应用[C]//第十三届中国电除尘学术会议. 青岛:中国环境保护产业协会电除尘委员会,2009:468.(ZHAO Yu-lin,MEN Xue-chen,MU Hai-fang. Design and application of innovative technology of pellet shaft furnace electrostatic precipitator[C]//13th Acdemic seminar of ESP in China. Qingdao:China Association of Environmental Protection Industry,2009:468.) [8] 黄三明,陶红森. 大型球团链篦机回转窑电除尘器的设计与应用[C]//第十三届中国电除尘学术会议. 青岛:中国环境保护产业协会电除尘委员会,2009:463.(HUANG San-ming,TAO Hong-sen. Design and application of electrostatic precipitator on large pelletizing chain grate-kiln[C]//13th Acdemic seminar of ESP in China.Qingdao:China Association of Environmental Protection Industry,2009:463.) [9] 马怀营,裴元东,潘文,等. 烧结机头除尘灰特性及资源化利用进展[J]. 中国冶金,2018,28(6):5. (MA Huai-ying,PEI Yuan-dong,PAN Wen,et al. Characteristics and recycling progress of dust in sintering machine head[J]. China Metallurgy,2018,28(6):5.) [10] 杨春善,任明欣. 日照钢铁固废尘泥处理实践[J]. 钢铁,2019,54(4):83. (YANG Chun-shan,REN Ming-xin. Practice of waste dust mud treatment in Rizhao Steel[J]. Iron and Steel,2019,54(4):83.) [11] 姚群,赵永平,钱磊,等. 钢铁窑炉烟尘PM2.5控制技术与装备[J]. 工业安全与环保,2016,42(1):21.(YAO Qun,ZHAO Yong-ping,QIAN Lei,et al. The controlling technologies and equipment of iron and steel kiln smoke PM2.5[J]. Industrial Safety and Environmental Protection,2016,42(1):21.) [12] 杜林娜. PTFE发泡涂层滤料的制备及性能研究[D]. 上海:东华大学,2017.(DU Lin-na. Preparation and Properties of PTFE Foam Coating Filter Material[D]. Shanghai:Donghua University,2017.) [13] 史元良,童震松,宋存义. 球团烟气密相干塔脱硫-除尘一体化系统优化[J]. 钢铁,2015,50(12):72.(SHI Yuan-liang,TONG Zhen-song,SONG Cun-yi. Simulation on desulfurization of sintering flue gas in dense flow absorber integrated bag-filter[J]. Iron and Steel,2015,50(12):72.) [14] 智谦,韩志国,易毅辉,等. 500万t/a带式焙烧机球团精矿干燥系统设计[J]. 中国冶金,2018,28(5):33. (ZHI Qian,HAN Zhi-guo,YI Yi-hui,et al. Design of iron ore concentrate-drying system for a 5 Mt/a travelling machine[J]. China Metallurgy,2018,28(5):33.) [15] 刘月娥. SO2大气中薄液膜下碳钢的腐蚀行为研究[D]. 南昌:南昌航空大学,2009.(LIU Yue-e. The Study on Atmospheric Corrosion Behavior of Carbon Steel Under Thin Electrolyte Layer in Air Containing SO2[D]. Nanchang:Nanchang Hangkong University,2009.) [16] 陈惠玲,魏雨. 碳钢在含SO2环境大气中腐蚀机理的研究[J]. 腐蚀与防护,2006(6):284.(CHEN Hui-ling,WEI Yu. Mechanism of industrial atmospheric corrosion for carbon steel[J]. Corrosion and Protection,2006(6):284.)
2020, Vol. 55 
