摘要
Ladle slag carry-over detection technology (SCDT) is of important practical significance to steel continuous casting production (CCP),which can effectively improve the casting blank quality,increase molten steel yield ratio,and protract the service life of tundish.The current SCDT realization methods and their application circumstance were summarized,and their main problems during the course of factual production were pointed out.The difficult technical points of detection principle,digital signal processing for vibration style SCDT development were described.To aim at the problems of vibration style SCDT,such as low recognition stability and long applied adjustment time,its key technologies including water model experimental platform establishment,two-phase sink vortex entrapment mechanism,forced vibration response of shroud nozzle and steel stream shock vibration signal processing optimization were analyzed deeply,and the corresponding research route and advices were given.
Ladle slag carry-over detection technology (SCDT) is of important practical significance to steel continuous casting production (CCP),which can effectively improve the casting blank quality,increase molten steel yield ratio,and protract the service life of tundish.The current SCDT realization methods and their application circumstance were summarized,and their main problems during the course of factual production were pointed out.The difficult technical points of detection principle,digital signal processing for vibration style SCDT development were described.To aim at the problems of vibration style SCDT,such as low recognition stability and long applied adjustment time,its key technologies including water model experimental platform establishment,two-phase sink vortex entrapment mechanism,forced vibration response of shroud nozzle and steel stream shock vibration signal processing optimization were analyzed deeply,and the corresponding research route and advices were given.
作者
TAN DaPeng1,2,JI ShiMing1,LI PeiYu2 & PAN XiaoHong2 1 Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology,Ministry of Education,Zhejiang University of Technology,Hangzhou 310014,China
2 Department of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China
基金
supported by the National Natural Science Foundation of China (Grant Nos. 50905163, 50875242)
the Natural Science Foundation of Zhejiang Province (Grant Nos. Y1090836, Z107517)
the Excellent Doctor Program of Zhejiang University (Grant No. 2007001A)
