FIELD: process engineering.
SUBSTANCE: invention relates to dressing of minerals and may be used in mining in concentration of large-lump minerals. Proposed method comprises the steps that follow. Crushing the ore to different sizes. Sizing the ore. Separating to fractions with respect to content of valuable component (except for fine fractions) and determining the optimum crushing size by extremum of portion contract factor-to-crushing degree ratio with due allowance for yield and extraction of fine fractions. Boundary diameter of ore fine fractions makes 5-50 mm and is specified by there requirements of State standard to commercial lump concentrate or machine fraction, that is, processes possibilities of feeding initial size of selected dressing process.
EFFECT: optimum selection of crushing size to up concentrate quality and yield of valuable component in concentrate.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SELECTING OPTIMUM PARAMETERS OF ORE CRUSHING | 2010 |
|
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| METHOD OF PRECONCENTRATION OF SOLID MINERAL RESOURCES | 2015 |
|
RU2620823C2 |
| METHOD FOR DETERMINING OPTIMUM ORE CRUSHING LUMP SIZE | 0 |
|
SU1776436A1 |
| METHOD FOR CONCENTRATION OF ORES OF PRIMARY GOLD FIELDS | 1991 |
|
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| METHOD OF ORE PRETREATMENT OF OXIDATED AND MIXED COPPER ORES FOR LEACHING | 2007 |
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| METHOD OF SIZING MINERALS AND GOLD-BEARING ORES | 1999 |
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| METHOD FOR DIAMOND-CONTAINING ORES PRECONCENTRATION | 2018 |
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| PROCESS OF BENEFICIATION OF MANGANESE ORE | 1998 |
|
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| METHOD FOR THE DEVELOPMENT OF MINERAL DEPOSITS | 2022 |
|
RU2791528C1 |
| MAGNESIUM SILICATE STOCK CONCENTRATION PROCESS | 2003 |
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RU2263546C2 |
