PROBLEM TO BE SOLVED: To provide a device for charging a raw material to a bell-less blast furnace, which can precisely control the particle size distribution of a raw material to be discharged when charging the raw material to a bell-less blast furnace by using a center feed type of a device for charging the raw material, which is provided with an upper hopper and a lower hopper that are connected with each other through a plurality of ports, and to provide a method for charging the raw material thereto.;SOLUTION: The device for charging the raw material to the bell-less blast furnace transfers the raw material in the upper hopper 1 to the lower hopper 6 via the port 4 by switching the port 4 while using the upper hopper 1 and the lower hopper 6 connected with each other through the plurality of the ports 4, and charging the raw material in the lower hopper 6 to the blast furnace. The lower hopper 6 has tilted plates 10 installed in positions on which each raw material drops from the upper hopper 1. The tilted plate 10 has a slope in such a direction as to make the raw material which has dropped on the slope drop toward a central direction of the blast furnace. The method for charging the raw material includes controlling the particle size distribution of the raw material to be discharged from the device for charging the raw material by using the device for charging the raw material and adjusting an angle of the tilted plate 10.;COPYRIGHT: (C)2008,JPO&INPIT
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