Slab Continuous Casting Drain Steel Theoretical Studies Of The Forecast System

Undoubtedly, a breakout is the most detrimental event associated with the continuous casting. According to many papers, sticker breakout accounts for 65%～80% of total breakouts. To avoid or decrease breakout, there are usually two ways: the first one is to research the form theory on sticker breakout deeply, so as to the producing conditions on sticker of elimination; the second one is to develop slab continuous casting breakout prediction system, which is to detect the breakout symptom in the mold, then take certain measures such as reducing the casting speed. Therefore I have read many continuous casting papers from home and abroad, and done the deeply study on slab sticker breakout.First, in this paper, there is an easy introduction to continuous casting process, and do some interpretation on the form theory and character analysis of sticker breakout, then I present the torn meniscus is the directly cause resulted in sticker breakout. In addition, I still explain the factors caused by sticker in the slab casting: casting temperature,the function of slag,steel chemistry,casting speed,mold level,mold taper,oscillation equipment and prevention measures. I have also done some analyses on the ripple shell, such as sticker speed,mold flux and oscillation mark.Second, with respect to some disadvantages on logical prediction (such as false alarm), many practices all over the world have proved that logical prediction is still an important path for BOPS (Break Out Prediction System). For the production line of new-running plant, owing to the lack of the production data, it has shown its advantages more directly and more flexibly. Many technical parameters are configured by professional engineers according to certain production process.At last, I still adopt logical prediction model, and develop slab BOPS simulation. I apply to simulate the data offline, and make a good progress. As a result, it has proved that logical prediction is still the key judge mode, and established the steady theory for further improvement of BOPS.