Method for coprocessing zinc-contained leaching residues through steel mill dezincification furnace

The invention relates to a method for coprocesisng zinc-contained leaching residues through a steel mill dezincification furnace. The method comprises the steps that 1, the zinc-contained leaching residues and a reducing agent are added into steel mill dust in a prepared manner; 2, roller press briq...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO PEI, PAN CONGCHAO, GUO PEIMIN, LIU YUNLONG, PANG JIANMING
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a method for coprocesisng zinc-contained leaching residues through a steel mill dezincification furnace. The method comprises the steps that 1, the zinc-contained leaching residues and a reducing agent are added into steel mill dust in a prepared manner; 2, roller press briquetting or disc balling machine balling molding is adopted; 3, waste hot gas is adopted for drying; 4, dried materials are fed into a steel mill dust smelting furnace to be smelted, the smelting temperature is 1150-1250 DEG C, and the standing time inside the furnace is 25-120 min; 5, enriched zinc-contained and lead-contained ash inside cloth bag fly ash is recycled; and 6, metallized pellets obtained from the steel mill dezincification furnace are cooled. The zinc-contained leaching residues are co-processed by means of the steel mill dust processing equipment, and the problem of secondary pollution caused by zinc-contained leaching residues or zinc-contained electroplating sludge generated in the colored, chemical and other industries is solved.