cases
Xinhai Mining provided the design, equipment supply and installation guidance for a 100 t/d copper-cobalt flotation plant in the Democratic Republic of the Congo. With no mineral processing testwork performed before design, the full-plant flowsheet — covering crushing and screening, grinding and classification, flotation, and concentrate and tailings dry stacking — was developed on the basis of the client's requirements.
Construction Drawing Design Across All Disciplines: Xinhai completed the construction drawing design for the crushing and screening, grinding and classification, flotation, and concentrate and tailings dry stacking systems, covering the general layout, mineral processing, civil, electrical and piping disciplines. With no prior testwork data, the flowsheet was defined together with the client to match the actual ore properties and production requirements.
Crushing and Screening: Run-of-mine ore is screened, with oversize material returned to the hammer crusher for size reduction and screen undersize conveyed by belt conveyor to the fine ore bin, providing a continuous feed to the grinding section.
Closed-Circuit Grinding and Classification: Ore is fed from the fine ore bin to the closed-circuit grinding system, where the ball mill operates in closed circuit with a spiral classifier, and the ground product of the required fineness is delivered to the flotation system.
Flotation Circuit: The ground ore is treated through one roughing, three scavenging and two cleaning stages to recover the copper and cobalt minerals, producing the flotation concentrate and the final flotation tailings.
Concentrate and Tailings Dewatering: Flotation concentrate and tailings are each dewatered by thickening and filter pressing, yielding the final concentrate product and dry-stacked tailings and meeting the environmental requirement for tailings dry disposal.
Construction drawings of all disciplines were delivered progressively from June 2021, allowing site preparation and civil works to proceed in parallel with the remaining design work, which was finalized in July 2021. The Xinhai-supplied equipment was shipped to site and installed under Xinhai's guidance, and the plant was put into operation in April 2023.
Share your project details and our engineers will get back to you shortly.
CHAT
MESSAGE
