脱硫塔外文翻译.doc

Research and Development of Baosteel Swirl-JetSintering Flue Gas Desulphurization Technology SHEN Xiao-lin, LIU Dao-qing, ZHOU Jing (Environment and Resources Institute, RD Center, Baoshan Iron and Steel Co., Ltd., Shanghai 201900, China) Abstract: The research background and technical features of BSFGD (Swirl-Jet-Absorbing Wet Limestone-gypsum Sintering FGD Technology) process and equipments were introduced here in detail. The main contents, achievements of pilot experiments, and engineering practices of BSFGD were analyzed and discussed systematically. Past engineering practice experiences indicate the fact is that the technology has the following merits, wide applicability to sintering flue gas features such as temperature changing frequently, SOconcentration being unstable, flow rate fluctuating intensively; high pollutants removal efficiency; low investment and energy consumption; stable and reliable running; utilizable byproduct (gypsum) etc. It has been proved that BSFGD has the value of a wide range of applications for large and medium-sized sintering machines flue gas desulphurization in the steel industry. Key words: sintering flue gas; desulphurization technology; research; engineering practice 1 Introduction At the beginning of the century, while The Guide to science and technology development in Iron and Steel Industry until 2020 was constituted, the experts of metallurgy point out that “Due to the complicacy of agglomerate and the otherness of sintering process, the technology of flue gas desulphurization used in power plants could not be applied in sintering flue gas desulfurization directly and blindly. The investment and running cost of FGD technology used in Iron and Steel Industry of other developed countries are usually too expensive to be accepted by Chinese companies.” Therefore, the technology of sintering flue gas desulfurization in china was listed as important study topic in The Guide to science and technology develo