During the smelting and slag-forming process in the converter, the changes in the intensity of sound inside the furnace can accurately reflect the actual furnace conditions. Whether splashing or blowback occurs, the furnace's acoustic signal shows distinct characteristics. By using a computer screen to display sound intensity curves and automatically alert for splashing and blowback, operators can visually understand the furnace conditions and take timely measures to control such occurrences.

The splash and blowback early warning system mainly consists of the following components: the front-end acoustic collection protection unit, signal processing unit, splashing detection unit, and image processing and display unit.

1.The front-end acoustic collection protection unit includes the cooling water jacket and pickup assembly.

        2.The signal processing unit includes the power supply, audio spectrum analyzer, data acquisition module, and communication module.

3. The splashing detection unit includes the splash detector, furnace mouth flame camera, and video capture card.

4. The image processing and display unit includes the industrial control computer, monitor, and communication board.