| 摘要 |
PURPOSE:To obtain a uniform compression molding of a mixture by supplying powder and granular material to a screw feeder from diagonally above, adding, under agitation, the second powder and granular material on the formed free flowing surface from above, and compression molding the materials after pressing preliminarily the same. CONSTITUTION:A free flowing surface 11 is produced in the inflow part when the reduced iron particles in a hopper 1 are supplied via a chute 2 into a screw chamber 3 from diagonally above. Coke powder is supplied and added, via a chute 12, to the surface 11 from above. The coke powder added onto the surface 11 is agitated and uniformly mixed by an impeller 15 and while the mixture is preliminarily pressed by a screw 4, the same is supplied to a roll briquetter 8. The mixture is compression molded by the calibers 9 provided to the briquetter 8 and is discharged as a molded briquette 10.
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