Design And Application Of The Advanced Control System For Blast Furnace Charging

Iron and steel is one of the most important materials,so it affects the state of the country.11 # blast furnace of a steel plant need to upgrade.In the blast furnace on the increasingly high capacity requirements,the original blast furnace control system design is imperfect,low control network security level,frequent production accidents,seriously hampered the production and quality of blast furnace.Guided by safety principles,a advanced control system for blast furnace charging need to be stable,fast and practical.A large number of domestic and foreign literatures on blast furnace feeding technology were reviewed,and the structure of the control system was studied in depth according to the technological requirements and functions.The overall design of the blast furnace feeding system was completed.This transformation is guided by the technical requirements of the company,the use of Schneider Quantum series of PLC and configuration software to generate the operation of the screen composed of industrial Ethernet-based secondary monitoring network is completed.Mainly the blast furnace slag,furnace top feeding process control system design.The controller adopts the double hot standby mode,the remote I / O station adopts the double cable connection,and the control network adopts the double network redundant structure,so that the control system reaches the highest security level,and the control system is kept in the production state without stopping.Use the UNITY programming software to complete the program.After debugging to meet the control of the process.Using iFIX industrial control configuration software for human-machine picture design,complete the system monitoring screen design,including data display screen,process control screen,alarm screen,historical trend screen.HMI interface is easy to operate,so the operators can simply learn it.This article is based on programmable logic controller PLC and industrial control configuration software,the system is flexible and convenient,and easy to maintain.After the entire control system is on the line.PLC in running safely,and HMI interface is operating well.It effectively reduce the occurrence of production accidents,and it ensure the production and quality of iron.It guarantees the use of blast furnaces for a long time.