(I002)Mechanical Challenges in Microwave Assisted Ironmaking Prototype Plant

摘要

The project was initiated with an objective to develop a novel, eco-friendly and economic process for production of pig iron, using powdery iron ore (low/high grade), which abundantly available around Indian ore mines and not readily used by industry. Another objective was replacing coke with powered coal to make the process cheaper & simpler. The main advantage of this process is the rapid heat generated by volumetric interaction of iron ore and coal with microwaves, enabling a fast rise in temperature that enhances reaction kinetics. This process is expected to eliminate coke and use coal and only sufficient for the reduction of iron oxides and not for supplying thermal energy for the reduction. This will reduce green-house gas emission almost by 50% and make the process environment friendly. This paper discusses the mechanical design challenges faced in the novel prototype plant designed by Chubu University, Japan and how they were overcome jointly for achieving the desired process conditions and controls.