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基于噪声信号的电弧炉冶炼氧化镁运行状态分析

, PP. 15-22

Keywords: 电弧炉,氧化镁,噪声,数据采集

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Abstract:

电弧炉产生噪声的声压在空间中的某一点对于时间的积分与弧流、弧压有关。采集电弧炉冶炼氧化镁时不同阶段的噪声数据,将噪声的波形信号转换成时频图。将这些图像与电弧炉三相电流的波动对比,分析了噪声信号与电弧炉运行状态之间的内在相关性,发现电弧炉噪声信号的声强及其频率特性和电弧炉的工作状态高度相关,各特征频率的噪声的强度随着弧电流的增大而增大,而且在电弧炉运行的不同状态呈现不同分布,该研究为后续利用噪声信号控制电弧炉冶炼氧化镁提供了基础。

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