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.