音频信号分析在球磨机控制系统中的应用

the application of audio frequency signals,analysis in ball mill control system

球磨机煤负荷的检测是球磨机实现自动控制、优化运行、节能降耗的关键。提出一种利用音频信号功率谱识别存煤量的方法,该方法能够得到球磨机在不同煤负荷下噪音频谱的特征频带,从而反映出球磨机煤负荷的变化,为把球磨机音频信号引入煤负荷控制系统打下基础。

Measuring the coal load of ball mill is important for carrying out auto control,energy conservation and cost reduction. A method that audio frequency signals can identify coal load is put forward. It is established that the characteristic frequency bands in different coal load can reflect the changes in coal load of ball mill,which will set the foundation for introducing the noise signal into the coal load control system of ball mill.