A pplication of L aminar C ooling C ontrol M odel in L aiwu S teel’s H eavy P late P roduction
ZHANG Li
Abstract：The 4 300 mm heavy plate production line in Laiwu Steel adopted laminar cooling control system, which is two levels control system including the basis of automation L1 level and L2 level for the process control. L2 level mainly includes pre-setting calculation, a correction setting calculation, secondary correction setting calculation models. When the temperature deviation is between 5 and 80℃, the parameters calculation of self-learning model starts. Application showed that the system runs stably;When the deviation between the actual and the target temperature is within the plus or minus 30℃, the hit rate averagely is above 95%;When cooling rate is within plus or minus 5℃/s, the hit rate is more than 90%.
Keywords：heavy platelaminar flow coolingcontrol systemL2modelself learning
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：2( 51-52 )