The automatic control for the molten steel level of the mold is one of the key technologies of continuous casting production. It is very important to reduce the labor intensity of workers, improve production efficiency, improve the quality and output of casting billet, reduce overflow and breakout of steel and improve the management level of steelmaking and continuous casting.

The components of the system

Continuous casting mold level automatic control system is composed of eddy current tyoe molten steel level gauge, controller and digital actuator for adjusting the opening of tundish stopper.

The detection end of the mold level automatic control system is ? eddy current displacement sensor, which uses the eddy current mutual inductance effect between the energized coil and the metal conductor to detect the distance. The effective signal of the eddy current sensor is amplified and linearized by the circuit of ? mold level gauge, which converts the 0-150mm change in the molten steel level of the mold into a standard signal of 4-20mA.DC, and then transmits it to the ? control computer to complete data processing and system control functions. We can also control the actuator manually and automatically through the ?on-site operation display control panel, and the opening of the stopper is controlled by the ? actuator to realize the automatic control of the molten steel level.

1 Eddy current sensor;

2 mold level gauge;

3 control computer;

4 On-site operation display control panel;

5 digital actuator;