An intelligent continuous casting tundish induction heating control method with self-learning function

Abstract

The invention relates to an intelligent continuous casting tundish induction heating control method with a self-learning function. The method comprises the steps of parameter setting, induction heating input, natural temperature drop calculating, input power calculating, power output inputting, weighted value calculating, a initial value, continuous casting communication data, actual molten steeltemperature. Due to model parameter setting, different steel grade casting temperatures can be selected, calculation is conducted according to the molten steel casting temperature, the steel grade andthe continuous casting communication data, the natural molten steel temperature drop and tundish induction heating input power can be obtained. By means of the method, the casting temperature of a tundish can be accurately controlled, constant-temperature casting is achieved, and prejudgment is conducted on molten steel temperature drop.

Description

technical field [0001] The invention relates to an intelligent continuous casting tundish induction heating control method with a self-learning function. Background technique [0002] In continuous casting production, the temperature of molten steel in the tundish is an important factor determining the quality of steel billets, and constant temperature casting is an ideal state for continuous casting. The reality is that as the casting time progresses, the temperature of the molten steel in the ladle and tundish inevitably decreases. Some steel grades are very sensitive to temperature changes and require temperature changes within ±5°C. [0003] With the induction heating of the tundish, there is a means to raise the temperature, but at present, the heating and temperature control of molten steel is still limited to manual operation, which is relatively random. In addition, the temperature measurement equipment for molten steel also has limitations on induction heating and...

AI Technical Summary

Problems solved by technology

[0003] After the tundish has induction heating, there is a way to raise the temperature, but at present, the heating and temperature control of molten steel is still limited to manual operation, which is relatively random

In addition, the temperature measurement equipment for molten steel also has limitations on induction heating and temperature control. If manual one-time temperature measurement is used, the number of measurements will be large, and the number of temperature measurement couplers used will increase the cost; if continuous temperature measurement equipment is used, then Since the temperature measuring head is protected by a thicker refractory material, the measured value has a lag of 2-5 minutes, which brings inaccurate control of the molten steel temperature and buryes hidden dangers for the quality of the billet.

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