| This technology of blast furnace dry dusting system is an important innovation for energy conservation and mission reduction and clean production in21st century, which not only can reduce the water amount during ironing process, but also can improve reusing the second energy and reduce the environmental protection meanwhile. This technology can reduce dust load of blast furnace gas to below5mg/m3, increase the temperature of coal gas by100℃without using extra water, increase gas caloricity by about210kJ/m3and produce more electricity by35%in TRT, so it leads the direction of ironing plant nowadays. It is also one of the three important technology (blast furnace dry dusting system, converter steelmaking dry dusting system, CDQ and TRT) in steel branch and it is environment friendly technology.Automation control system of Shougang Jingtang1#5500m3blast furnace dry dusting system is advanced and complex for remote automation control. In this paper, we introduce the configuration of automation system for dry dusting system in Shougang Jingtang1#5500m3blast furnace. And we make suggestions concerning the selection of main instruments, considering the problems which have occurred in other similar projects for which those instruments are used. We emphasize on the optimum application of level sensing device and online monitoring system for dust content. We expound emphatically the application of integrated automatic technology based on field bus, PLC, industrial computer, ethernet network and automatic control process of dusting system in blast furnace etc. The control system has reasonable structure and advanced technology. It runs normally now, is worth promoting.It contributes to the development of extra large blast furnace for saving energy, environmental protection and high efficiency. |
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