| 摘要 |
PROBLEM TO BE SOLVED: To provide a screening method for a blast furnace feed in which screening capacity under a blast furnace feed storage tank is remarkable improved only by applying relatively simple modification to equipment in a present state.SOLUTION: In a screening method for a blast furnace feed of successively exhausting a feed charged to a blast furnace feed storage tank and applying the exhausted feed to a lower screen to separate fine powder, the feed charge into the storage tank is performed by segregation charge, thus the feed in the storage tank is classified, segregation is produced in the grain sizes of the feed in accordance with the order to be exhausted, and a feed exhaust speed is controlled in accordance with the produced grain size segregation. |
