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The deposit was characterized by standard minerals. There were repeated different stages of mineralization featuring an extreme low grade of sulfide. The raw ore consisted of metallic minerals (silver-gold ore, gold ore, blende, galena and hematite) and gangue minerals (quartz, sericite, feldspar, calcite, chlorite, zircon and apatite). The major deficiency of the deposit was the existence of the 5-20cm thick fault which distributed along the main crack. The ore was in the form of dark grey and off-white slime.
Crushing and classification: one-stage open-circuit crushing was adopted to gain a particle size of ≤160mm.
Grinding and classification: one-stage open-circuit self-grinding and one-stage closed-circuit grinding and classification were adopted to gain a particle size of -200 mesh (55%). An appropriate number of steel balls were put in the autogenous mill to increase the proportion of fine particles and enable half self-grinding. Hydrocyclone was adopted for classification, leading to high efficiency, simple structure, sound performance and small footprint.
Flotation: XCF-KYF joint unit featuring simple arrangement and low consumption was adopted; self-suction SF flotation cell was used for better flotation results.
Concentrates dewatering: gold concentrates were pumped to the original concentrates dewatering system, while tailings were transported to the original tailings pond and used for underground pit filling.
An air-inflation mechanical agitation flotation cell without slurry suction (This type of cell is designed referring to Finland Autoquenpu OK flotation cell).
A wet autogenous grinding mill that materials as grinding media
Hammer crusher is a kind of crushing equipment with with high production capacity, large reduction ratio and high crushing efficiency.
An air inflation mechanical agitation flotation cell with slurry suction(as suction cell of KYF flotation cell).
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