The conductivities of liquid steel and slag are different between each other. One electromagnetic induction coil is installed round the ladle shroud to detect the slag when the ladle is drained. Once the slag is detected, the slide gate under the ladle should be closed automati- cally or manually. With this system, the slag pouring into the tundish could be minimized and the quality of the steel could be improved. Then, the clogging of the SEN could be reduced and the eroding of refractory could be avoided as well.
- This kind of slag detecting system (with modular structure designing) is much easier to install and change;
- The maintaining cost is much lower;
- Good at anti-jamming and insusceptible for noise; The sensitivity is high and the response speed is fast;
- The working process can be simulated in the HMI directly and clearly;
- The whole system is easy to control for worker; Automatic testing and adjusting.
- Technical Parameter Alarm accuracy: > 96%;
- Sensor response time: 100 ms;
- Sensitivity: 1 % ~ 2 %;
- Working period for sensor: 1000 ~ 1500 heat.
Using the sensors to detect the vibration signal of ladle shroud, with advanced signal process analysis and pattern recognizing, finally we can get the detecting results of the ladle slag and send the alarm.
- The system can automatically run without workers, and can execute the function process automatically;
- Vibration collection device can be fixed according to the situation of clients smartly;
- With advanced digital filter methods, many kinds of disturb signal can be wiped effectually;
- Due to the wavelet analysis technology and artificial neural network recognition method, the system has high accuracy and credibility;
- The system has a function of automation/manual change;
- The system has automatic tundish level control function with a high control precision;
- The software has friendly UI, and it is easy to use with short time for training;
- The software has realized real time process displaying, and we can know the work process clearly and intuitively;
- The control system can automatically diagnosis and watch all fail- ures of the system which can ensure the safely run;
- Parameters as alarm threshold value can be set smartly;
- The system has functions of browsing history data, making log files and printing report forms.
- Accuracy rate of alarm:≥96%;
- Service life of sensors:>1 year;
- Response time:<10 ms;
- Algorithm determine time:<5 ms