Abstract:The ore blending process is important guarantee for sinter quality and high yield, and the blended ore quality directly affects the quality of sinter and blast furnace iron. During the initial period of phase I blended ore commissioning of the blending stockyard of Baosteel raw material branch, such problems as the size segregation and component fluctuation etc. occurred; in view of this, round trip variable speed bedded (layered) feeding and end delay stacking technology were adopted to improve the pile quality of Baosteel raw material branch, and good results were achieved. These two kinds of technologies were introduced in this paper for reference in the same industry.