Fine grinding magnetic separation-roasting-regrinding magnetic separation tailing recovery process

The invention relates to a fine grinding magnetic separation-roasting-regrinding magnetic separation tailing recovery process. The process is characterized by adopting three-section magnetic separation, three-section cyclone closed-circuit grinding classification operation, roasting and regrinding m...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YANG XIAOFENG, LIU SHUANG'AN, LIU XIAOMING, MEI CANGUO, DOU GUOYU, SONG JUNLI, YUAN ZHE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS METALLURGY MILLING GRAIN PERFORMING OPERATIONS PREPARATORY TREATMENT OF GRAIN FOR MILLING PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a fine grinding magnetic separation-roasting-regrinding magnetic separation tailing recovery process. The process is characterized by adopting three-section magnetic separation, three-section cyclone closed-circuit grinding classification operation, roasting and regrinding magnetic separation. A second-section cylindrical magnetic concentrate is singly grinded to reach a particle size of -0.025 mm above 90%; then, the first-section weak magnetic separation is performed to realize sufficient and effective separation of a strong magnetic ore and a weak magnetic ore from a gangue; a first-section weak magnetic concentrate is directly fed to a subsequent weak magnetic separation operation; and when the iron mineral recovery rate is guaranteed, the roasting operation handling capacity is reduced, and the excellent indexes of the concentrate with grade above 65% and yield above 9%, the tailing grade of 5-7% and the metal recovery rate above 53% are obtained.