Method for recycling weakly magnetic iron ore from fine-fraction waste rock
The invention discloses a method for recycling weakly magnetic iron ore from fine-fraction barren rock, which comprises the following steps of: 1) screening 0-5mm barren rock with the iron grade of 15-18% and thrown out by dry pre-selection of a mine into two fraction ranges of 0-1mm and 1-5mm by us...
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| creator | WANG XIN ZHAN RENLI BIAN LIGUO CHI YONGQIN ZHANG JINHAI GUO YI |
| description | The invention discloses a method for recycling weakly magnetic iron ore from fine-fraction barren rock, which comprises the following steps of: 1) screening 0-5mm barren rock with the iron grade of 15-18% and thrown out by dry pre-selection of a mine into two fraction ranges of 0-1mm and 1-5mm by using a linear vibrating screen; (2) carrying out one-roughing and one-sweeping wet-type deep enrichment and waste throwing on the weakly magnetic refractory iron ore in a size fraction range of 0-1mm by adopting a high-gradient electromagnetic separator with a medium rod gap of 2mm, wherein the field intensity is 11000GS; 3) performing one-roughing and one-sweeping wet-type enrichment waste throwing on the weakly-magnetic refractory iron ore in a size fraction range of 1-5mm by adopting a high-gradient electromagnetic separator with a medium rod gap of 8mm, wherein the field intensity is 14000GS, and 4) combining pre-selected concentrates obtained in the step 2) and the step 3) and feeding the pre-selected concentra |
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(2) carrying out one-roughing and one-sweeping wet-type deep enrichment and waste throwing on the weakly magnetic refractory iron ore in a size fraction range of 0-1mm by adopting a high-gradient electromagnetic separator with a medium rod gap of 2mm, wherein the field intensity is 11000GS; 3) performing one-roughing and one-sweeping wet-type enrichment waste throwing on the weakly-magnetic refractory iron ore in a size fraction range of 1-5mm by adopting a high-gradient electromagnetic separator with a medium rod gap of 8mm, wherein the field intensity is 14000GS, and 4) combining pre-selected concentrates obtained in the step 2) and the step 3) and feeding the pre-selected concentra</description><language>chi ; eng</language><subject>MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS ; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS ; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL ; 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(2) carrying out one-roughing and one-sweeping wet-type deep enrichment and waste throwing on the weakly magnetic refractory iron ore in a size fraction range of 0-1mm by adopting a high-gradient electromagnetic separator with a medium rod gap of 2mm, wherein the field intensity is 11000GS; 3) performing one-roughing and one-sweeping wet-type enrichment waste throwing on the weakly-magnetic refractory iron ore in a size fraction range of 1-5mm by adopting a high-gradient electromagnetic separator with a medium rod gap of 8mm, wherein the field intensity is 14000GS, and 4) combining pre-selected concentrates obtained in the step 2) and the step 3) and feeding the pre-selected concentra</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS SEPARATING SOLIDS FROM SOLIDS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING TRANSPORTING |
| title | Method for recycling weakly magnetic iron ore from fine-fraction waste rock |
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