Effect of Build-ups on Ladle Wall on Acoustic Signals in Gas-Stirred Ladles

Acoustic signals generated during industrial processes have potential to monitor and provide information about the process parameters. The effect of build-up on the ladle wall on the sound signal was studied on a cold model gas-stirred ladle using an array of four microphones. Power spectrum analysis of the recorded sound showed 2200 to 3200 Hz to be an effective frequency range to detect the presence of build-up on the ladle wall. The …