| 摘要 |
PURPOSE:To manufacture a sintered ore in good yield, by distributing and supplying, with continuous grain-size segregation, a sintering material onto the pallet of a sintering machine via bars arranged so that the spaces among them become wider with the approach to the lower ends so as to perform uniform sintering reaction. CONSTITUTION:A sintering material 1 is carried via a chute 4 to a grain size segregation- applying device 5 by means of a drum feeder 3, etc. In the device 5, bars 6 are provided so that one end of each bar 5 is attached to the lower part 4a of the chute 4 and the other end of each bar 6 is attached to a lower end-mounting plate 7, and holes 8 into which respective lower-end sides of the bars 6 are to be inserted are provided to the side of the mounting plate 7 and vertical-direction distances l1-l4 among the holes 8 are regulated so that they are reduced with the approach to the lower part. By so doing, the grains of the same size are classified from the above material 1, over a range L1 from the above-mentioned mounting position at the lower end 4a and fed to a pallet 9. Accordingly, he discontinuity in the grain- size distribution of a raw-material layer 10 can be removed, and the lower layer and the upper layer are filled with coarse grains and fine grains, respectively. Then, sintering is applied to the raw-material layer 10 with the above-mentioned grain-size segregation while carrying out downward suction by means of wind boxes 11.
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