The Research And Application Of Integrative Control System On 750m～3 Blast Furnace

This artical expatiated the realization of the automation control system about the system control strategy , the system structure, the achieved of control function in the No3 750 m~3 blast furnace of Laiwu Iron and Steel Co Ltd, the configuration of light fine ring Ethernet network and MB+ network, the exploitation and application of computer network technic in this automation control system.The automation control system realized the logic order control, the mathematical computes, the PID loop control, the model controls, and the craft parameter collect, handle, display, the trend diagram, the storage of history data , alarm, print statement etc. of blast furnace, raw material up system, the hot blast stove, main roll machine, slot top, the dirty coal gas, the coal gas decontamination system, TRT, the grain slag system of the blast furnace . The electric control system and the instrument control system are applied EIC, through the PLC, they realize the control function, and realize the system construction of the fiber-optic ether wreath net and the hot standby of the PLC controller.The systems adopted a large number of new techniques and advanced control algorithm, and got the effective practice, and creat the no. 1 record to reach produce in the first day in the whole country , the economic performance is high, the value of expansion and application is enormous.