| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for charging a raw material with a specific brand out of materials having different brands and angles of repose into a blast furnace, with a concentration distribution in the radial direction in the blast furnace. SOLUTION: When coke and the raw materials are charged into the blast furnace so as to alternately form layers, the raw materials of the specific brand are charged to the height position of the raw materials of the specific brands in a raw material hopper corresponding to the piling shape in the radial direction of the furnace, in order to charge the raw materials of the specific materials from the raw material hopper becoming a funnel flow installed at the furnace top part of the blast furnace while being made to correspond to the piling shape of the previously charged and deposited cokes in the furnace radial direction at the top of the furnace. COPYRIGHT: (C)2008,JPO&INPIT
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