2250热轧生产线X80管线钢轧制的活套控制优化

LOOP CONTROL OPTIMIZATION IN ROLLING OF X80 PIPE LINE STEEL WITH 2250 HOT ROLLING LINE

邯钢2250热轧生产线X80管线钢轧制时钢温低、硬度高,活套控制一旦出现故障极易造成出口导台被带出的严重设备事故。分析导致活套控制出现问题的表现和原因,针对活套压力传感器不稳定的问题,增加了冗余控制;利用活套对上游机架速度进行干预调整,通过活套优化控制避免设备事故,保证了生产的顺利进行。

In rolling of X80 pipe line steel with 2250 hot rolling line,the steel temperature is low,and its hardness high. Once a fault occurs in loop control,a serious equipment accident would be brought about： the exit guide table being brought out. It is analyzed the symptom and reason for the problem. With measures adopted： to append the redundancy control to solve the problem of the loop pressure sensor being not steady;intervention adjusting the speed of upstream stands with loop,optimizing control with loop,the production is guaranteed smoothly.