Research On Ladle Tracking And Scheduling In Steelworks

Most of the steel plants operate inefficiently in our country currently because of manual tracking and scheduling ladle. The informatization of tracking and scheduling ladle will not only improve production rhythm but also save energy and reduce consumption, which can get the run of the operation status of ladle real-timely and roundly, and reflect the performance of steelmaking-continuous casting Production specifically.Tracking and scheduling ladle is faced with many disturbances and is complex totally, because there are quite a few ladle running paths and involved main and auxiliary equipments. The established ladle running plan may be confronted with modifications halfway according to the change of production plan, besides there may be accident like equipment damage and so on, which increase more uncertainties. Due to the special technologic requirements of steel-making production, ladle running is also confronted with many technologic restrictions. For example, continuous casting machine should keep continuous casting to maximum, the next procedure have different requirement on temperature and component of molten steel. In addition, the running paths of ladle should also be modified according to the scheduling target in order to improve the scheduling percentage of hits.Ladle scheduling is in possession of complicated constraint, uncertainty, multi-objective and mixed production path. relying on manual drew up cis-tapping program only includes CC converter beginning time and LD tapping end time, for many auxiliary equipments related steelmaking-continuous casting production scheduling, but don't include similar processing program and "train timetable" arrangement. This paper is introduced radio frequency identification and wireless communication technology applied to ladle running process in steel making continuous casting, studied ladle tracking and scheduling implementation project, which reflects ladle position and operation status judgements by detecting trans-shipment traffic tools (crane, trolley) position and data change of crane weighing, draws up ladle path program, empty and full ladle running path according to ladle processing procedure and constrainted condition under manufacture technology. Ladle scheduling orderly is conducive to steelmaking-continuous casting production logistics operation high efficiently, but also help to balance equipment load, raise red ladle utilization, reduce energy consumption.The main work of this paper as follows: (1) ladle running process analysis, take steelmaking-continuous casting production technique as background, analyze the turn around process of ladle deeply, point out the path situation of full ladle and empty ladle running. (2) ladle tracking research, raise system architecture and general project of ladle tracking, describe the system function and framework, analyze position detection project and data communication mode of crane and trolley. (3) ladle positioning research, analyze condition and adjusting rule of ladle position fuzzy judgment, illuminate the code of turn around equipments operating status, sum up classification of ladle operating and status, discuss the management of ladle getting in and out shop in detail. (4) ladle scheduling research, extract expert experience of steelmaking-continuous casting and regularize it, analyze ladle handling processes and restricted conditions deeply, elaborate on the plan formulation of empty ladle running paths and full ladle running paths.Finally, the work of this paper is summarized, deficiency is pointed out,and the next stage of work is expected.