The main process of blast furnace (blast furnace body, hot air furnace, slot material, blast furnace gas dry ingest, circulating pumping station, water slag and its pumping station, iron field dust removal, mine chute dust removal and other processes) adopts the three-electric integrated control scheme of 'dispersed control, centralized monitoring'.

The main control system of this scheme is based on automation level, divided into upper-level monitoring level and PLC control level, monitoring level and control level between the use of Ethernet communication.

Through network communication, the centralized monitoring of the main production process information of blast furnaces is realized in the main control room of the blast furnace, so as to create conditions for the blast furnace foreman to operate the blast furnace in a timely, accurate and effective manner.

The control system design is mainly automatic operation, manual operation as a supplement, fully consider the HMI manual operation and electrical manual operation and other backup operating means to ensure that the normal production of blast furnacein in special cases.

The system design is easy to understand, easy to see, easy to parse, easy to operate, easy to maintain equipment as the principle.

The system adopts the open structure, creates the conditions for the future system expansion, and leaves the interface ability of regional-level process computer and plant-wide management computer communication.

The whole control system adopts the integrated design idea of IE (instrumentation and electrical control equipment) in order to achieve the goal of consistent control system equipment, convenient system maintenance and lower system cost.

Considering the characteristics of the 1080m3 blast furnace iron-making production process (the specific relative independence of each process), the blast furnace body system design1 SET PLC system, the control includes blast furnace body, gravity dust removal, iron field and iron field dust removal valve, etc. ; The control includes the combustion and furnace control of the hot air furnace and the double preheating system of air and gas, the design of a PLC system for the under-slot ingredients, the pit discharge, the main roll-up material, the furnace top loading, the dust removal valve of the ore trough, etc., and the blast furnace gas drying system design 1 PLC system, The control includes the anti-blowing, ash removal and the middle warehouse ash removal of the dust collector's box, the blast furnace circulating water system designs a PLC system, the control includes the circulating pump group, the electric valve, the cooling tower, etc., and the redundant control system is used in each system. Water slag and its pumping station system design 1 set of PLC system, control includes water turbine, granulator, slag belt and slag pump room equipment, such as the system uses redundant control system.