cases
Xinhai Mining supplied the gravity separation and flotation equipment and provided installation guidance for a 600 t/d gold flotation plant in Hebei, China. The plant flowsheet was set by the client, and the equipment configuration follows the test-recommended closed-circuit flotation process, with grinding fineness of 65% passing 200 mesh.
Equipment Configuration to Ore Characteristics: The ore carries its gold mainly as inclusions within pyrite, along fissures and as composite particles. Gravity separation and flotation equipment was selected to match this mineralogy and the closed-circuit flotation flowsheet recommended by testwork.
Gravity Separation: Gravity separation equipment recovers coarse gold ahead of flotation, capturing the free gold fractions early in the circuit and reducing the load on the downstream flotation stages.
Flotation Circuit: The ground ore is treated through one roughing, two scavenging and two cleaning stages to produce the gold concentrate, matching the closed-circuit flotation arrangement defined by the client's flowsheet.
Concentrate Dewatering: The flotation concentrate is dewatered to yield the final gold concentrate product, with the thickening stage installed under Xinhai's guidance.
Guided Installation: Xinhai engineers guided the client's installation of the supplied equipment, including the thickener, supporting a smooth handover from mechanical installation to commissioning.
Equipment was supplied and installed under Xinhai's guidance through 2024, and the plant was put into production in December 2024 with the flowsheet achieving the expected gold recovery. Batch testwork on the ore returned gold recoveries of 94.94% and 95.64% into concentrates assaying 64.78 g/t Au and 44.58 g/t Au across the two circuit options tested, which set the basis for the closed-circuit flotation configuration adopted at the plant.
Share your project details and our engineers will get back to you shortly.
CHAT
MESSAGE
