Blast Furnace Burden Control System Based On PLC

The context of the paper is the new-build project of No.6 blast furnace in JIYUAN STEEL&IRON Co. Referring to a lot of correlation literature domestic and overseas. Intrinsic control pattern of blast furnace control system had more problems, as a result, they infected the control system functions. It used much more manpower and restricted the improvement of output and quality. The project of N0.6 blast furnace's control system uses IEC equipment integration, it makes maintenance easier and less equipments. As well as the lowness cost automated idea. Namely the level of basic automation use PLC method, the level of process automation use PC, the design of monitor software use industry control configuration software.The task researches N0.6 blast furnace's control system design. In the time of designed the control system, Referring to a lot of correlation literature domestic and overseas. We combine modern blast furnace's control technical and developing trend, as well as the enterprise's actual status. In the precondition of trailing the international modern technical, we preserved moderate advanced technique and fit our country status. Thereby it obtains the best percent of performance and price.With the Siemens PLC S7-300 and the corresponding programming software STEP7 that helps in control software programming, the proportioning system meets the requirements of automatic proportioning, weighing, loading and weight compensating. The design work uses WinCC, that is also a product from Siemens, to configure the supervisory software, realizing the real-time data-logging, supervising and controlling, as well as various visual HMI with Windows features such as real-time weighing, record checking, alarming, dynamic simulation.PLC and the IPCs in the scheduler room are linked together via Profibus to form a hybrid industry control system, in order to make profit of the unique merits of PLC and IPC.