| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that the grain distribution of sintered ores supplied to a blast furnace has been unstable, because, conventionally, a middle size of sintered ores produced in a sintering machine has been alternatingly switched a stream directing to a hopper for flooring materials with a stream directing to the blast furnace by a sorting chute. SOLUTION: This sorting structure of a chute comprises a swing plate 41 for blocking an inlet of the first diverted section 43 and leading the middle size ores 29 to a second diverted section 44, and a bypass 45 for diverting a part of middle size ores 29 flowing into the second diverted section 44 to the first diverted section 43 through it, and for dropping them onto a conveyer 29, as shown in Figure 3 (a). Then, the rest of the middle size ores 29 drop onto a B conveyer 34 through the second diverted section 44. Large size ores 26 also drop onto the B conveyer 34, as shown by an outlined arrow, and the mixed ores of the large size and the middle size move toward a blast furnace. The swing plate 41 is not basically swung. As a result, the structure stabilizes the grain distribution of the mixed ores of the large size and the middle size, and consequently the grain distribution of the sintered ores to be supplied to the blast furnace. COPYRIGHT: (C)2003,JPO
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