Optimization and Application of Hot Rolled Thick Gauge Strip Coiling Temperature Control
The coiling temperature of hot rolled thick strip steel is affected by the change of steel type,boiling heat transfer on the surface of the strip and steam fog,which causes serious interference to the measured temperature and equipment tracking accuracy.The prediction accuracy of CTC mathematical model is generally lower than that of thin strip steel products,and the coiling temperature deviates from the target value in the process of changing gauge rolling.Meanwhile,the length of the dry head of thick strip steel is controlled too long.It seriously affects the yield of thick specification products.Based on the problems in actual production,this paper analyzes and optimizes the parameters of the model,such as speed and acceleration.The C3 model server was upgraded,and the response time of the field instrument was adjusted.The length of the thick strip steel stem was reduced from more than 4 meters to about 1.8 meters,and the yield of thick products was improved.At the same time,the position of the measuring instrument is optimized and adjusted to improve the coiling temperature hit ratio of thick strip steel.After the optimization,the coiling temperature of the thick strip was increased from 85.26％to 92.13％,and the yield was increased by 1.26％.
thick stripcoiling temperatureapparatus measuringprediction accuracymathematical model
NETL
NSTL
万方数据
