在并罐式炉顶布料过程中，同样呈现烧结矿、焦炭和球团矿落点半径依次增大的规律。各炉料落点半径圆周分布曲线变化趋势基本一致，但约在0°-180°区间内，三者落点半径差值较小，而在180°-360°区间内，三者落点半径差值较大。

In the charging process of parallel-tank top, the radius of sinter, coke and pellet drop points also increases in turn. The variation trend of the circumferential distribution curve of the drop point radius of each furnace charge is basically the same, but in the range of 0° – 180°, the difference of the drop point radius of the three is small, while in the range of 180° – 360°, the difference of the drop point radius of the three is large.