METHOD OF PROCESSING OF IRON-ORE PRODUCTION WASTES

processing of industrial wastes; processing of crushing-and-concentrating plants and overburden dumps; ferrous metallurgy. SUBSTANCE: proposed method consists in gravity concentration through segregation of wastes; fractions more than 100 mm, 100 mm, 60 mm and then waste fraction more than 100 mm ar...

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Bibliographische Detailangaben
Hauptverfasser:	FILIPPOV P.A, GAJDIN A.P, KOMISSAROV A.V, RUBEZHOV B.Z, KOREN'KOV EH.N, FREJDIN A.M, USKOV V.A, DOROGUNTSOV V.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT 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 METALLURGY PERFORMING OPERATIONS 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
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Beschreibung
Zusammenfassung:	processing of industrial wastes; processing of crushing-and-concentrating plants and overburden dumps; ferrous metallurgy. SUBSTANCE: proposed method consists in gravity concentration through segregation of wastes; fractions more than 100 mm, 100 mm, 60 mm and then waste fraction more than 100 mm are subjected to crushing to size of 0 to 100 mm, after which magnetic separation of fractions of wastes is performed separately: for fractions of wastes of 100 mm first low-gradient magnetic separation is performed at separation of said iron concentrate, then high-gradient magnetic separation is performed at separation of building material in form of broken-stone ballast and sub-standard magnetic product which is combined with fraction of 60 mm of waste and is subjected to crushing to size of 25 mm and low-gradient and high-gradient magnetic separation is performed for fraction of 25 mm at separation of building broke stone and sub-standard magnetic product which is subjected in its turn to crushing to size of 0 to 10 mm combining it with fraction of 0-10 mm of wastes, after which poly-gradient magnetic separation is conducted through simultaneous action of high-gradient magnetic field of stationary magnetic system and high-gradient magnetic field of alternating polarity and variable direction of concentrates of magnetic flux; building material is separated in form of screenings for filling used open pits and sub-standard magnetic product directed for low-gradient magnetic separation at separation of product for extraction of iron in sintering process and sulfide product directed for extraction of iron in sintering process and sulfide product directed for extraction of other valuable components by floatation method. EFFECT: enhanced efficiency; enhanced ecological safety due to optimal modes of separation. 2 cl, 1 dwg