文献类型：期刊文献

英文题名：The Detection of Agglomeration in HSBR Based on the Analysis of an Acoustic Emission Signal

作者：Zhang, B.[1,2];Weng, H. -X.[2]

机构：[1]Sinopec Shanghai Engn Co LTD, Proc Dept, Pudong New Area, Shanghai 200120, Peoples R China;[2]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

年份：2012

卷号：30

期号：19

起止页码：1990

外文期刊名：PETROLEUM SCIENCE AND TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000306831800004)】；

语种：英文

外文关键词：acoustic emission; AE; agglomeration; horizontal stirred bed reactor; HSBR; polypropylene; spectrum analysis; wavelet analysis

摘要：A method of agglomeration detection in horizontal stirred bed reactors was obtained based on the frequency of acoustic emission (AE) signals vary with different sizes of particles stricken on the wall. The AE signal was dealt with by the method of spectrum analysis and wavelet analysis. It was found that the low frequency band energy ratio of AE signals (d(6)similar to d(7)) increased as the agglomerations were added in the reactor So this method could predict the agglomeration environmental friendly with fairly good accuracy.