Method and apparatus for supplying granular raw material for...

Details Method and apparatus for supplying granular raw material for... Method and apparatus for supplying granular raw material for...

C - Chemistry, Metallurgy

22

B

C22B 5/10 (2006.01) C21B 13/10 (2006.01) F27B 3/18 (2006.01) F27B 9/16 (2006.01) F27D 3/00 (2006.01) F27D 3/08 (2006.01)

Patent

CA 2316620

Disclosed is a method for supplying a granular raw material for reduced iron in which when the granular raw material for reduced iron is fed into a hopper and from there supplied onto a hearth of a movable hearth furnace through a material supplying device, the material supplying device is moved vertically to thereby adjust the gap between the lower end of the material supplying device and the hearth, whereby it is possible to adjust with high accuracy the amount of granular raw material for reduced iron supplied onto the hearth of the movable hearth furnace. Further, disclosed are a method and an apparatus for leveling a granular raw material for reduced iron in which a spiral vane is rotated on the downstream side with respect to a hearth moving direction of a material discharge outlet of a material supplying device for supplying the granular raw material for reduced iron onto a hearth of a movable hearth furnace through the material supplying means to thereby move the granular raw material for reduced iron in the hearth width direction to disperse it, whereby it is possible to disperse and level the granular raw material for reduced iron over the entire surface of the hearth of the movable hearth furnace without breakage or pulverization of the granular raw material for reduced iron.

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