METHOD AND APPARATUS FOR CHARGING RAW MATERIAL FOR SINTERING

PROBLEM TO BE SOLVED: To provide a charging apparatus and a charging method by which productivity can be improved by segregating fine-grained raw materials, such as mill scale which contains a large amount of FeO having an improving effect on viscosity in a melting zone of a bed of raw materials for...

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Bibliographische Detailangaben
Hauptverfasser:	OYAMA NOBUYUKI, JINNO TETSUYA, SAWADA TOSHIRO, FUJII NORIBUMI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY OPEN SINTERING OR LIKE APPARATUS OVENS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RETORTS TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a charging apparatus and a charging method by which productivity can be improved by segregating fine-grained raw materials, such as mill scale which contains a large amount of FeO having an improving effect on viscosity in a melting zone of a bed of raw materials for sintering and cokes as a heat source, in the upper-layer part of the bed of the raw materials for sintering and also reducing the falling impact of the raw materials for sintering to improve air permeability in the bed of the raw materials. SOLUTION: The raw materials for sintering stored in an ore-feed hopper are discharged by a drum feeder and allowed to fall on a charging chute provided below the drum feeder and having an angle of inclination with respect to horizontal direction. Magnetic force is allowed to act by a magnet provided on the under side of the charging chute to reduce the speed of the raw materials sliding down the charging chute. Then the raw materials are screened by means of two or more bar-shaped members provided along the falling locus of the raw materials falling down from the lower end of the charging chute and each having a central axis parallel to the rotation axis of the drum feeder, followed by charging onto a pallet.