点击次数：

论文类型：期刊论文

发表时间：2017-06-01

发表刊物：IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

收录刊物：SCIE、EI

卷号：64

期号：6

页面范围：4772-4780

ISSN号：0278-0046

关键字：Acoustic signal; electric arc furnace (EAF); fused magnesia; signal processing; splattering suppression

摘要：This paper proposes a splattering suppression technique based on acoustic signal for the three-phase ac electric arc furnace (EAF), with an aim to reduce the energy consumption in fused magnesia production. Taking the 5000 kVA EAF as a research object, the spatial distribution of sound amplitude inside the furnace shell was calculated. In addition, the calculation results were proven to be reliable by comparison with the acoustic signal acquired from the EAF. Moreover, the EAF splattering characteristic frequency was extracted by computation of the Winger-Ville distribution. Through the comparison of image signals and acoustic signals, the relationships between the characteristic frequency amplitudes and the different periods in the EAF splattering process were revealed. Furthermore, a program based on this regularity was introduced into the original EAF control system to suppress splattering. Finally, the calculation and production results in fused magnesia smelting were given to validate the effectiveness of the proposed solution.