| With the double-mill patten realized in heavy plate mill of Baosteel,the output of plates will be got higher,and at last,reached1.8million per year’s goal.There is two shearing line in heavy plate mill.No.1shearing line has been finished years ago and been used.But the No.2shearing line’s construction even not been taken into account.So before the No.2shearing line finished,we should be considered how to increase the produce ability of the No.1shearing line to matching the mill’s produce ability.The subject of research can be summarized as follows:(1)For the changing of the CS、DDS、DS cutting area’s PLC control system,and optimize the L1and L2date handling system,we can tracking two plates’ date in the cutting area.(2)In crop-shear’s cutting area,we can analyze the PLC control system and research the logic relationship,separating the whole process into two parts:Patting and cutting.So when the plate is cutting,and the next also can be painted.(3)In double side-shear’s cutting area,we can analyze the PLC control system and research the logic relationship,separating the whole process into two parts:Shiftting and cutting.So when the plate is cutting,and the next also can be shiftted.(4)In dividing-shear’s cutting area,we can analyze the PLC control system and research the logic relationship,separating the whole process into two parts:Shiftting and cutting.So when the plate is cutting,and the next also can be shiftted.(5)Optimize the HMI.By the research on running rhythm’s optimize of No.1shearing line in heavy plate mill,the No.1shearing line’s mode will be changed.Before changing,there is only one plate in the cutting area,but after changing,there could be two plates in the cutting area,and the No.1shearing line’s cutting efficiency will be promoted by about2%.So the produce ability not matching between the mill and the No.1shearing line will be solved.And after this research,something like producing coast、materiel flow、delivery date will be improved. |
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