A concentrator plant with a daily production capacity of 50 tons of copper concentrate is considered small-scale, typically processing 50,000 to 80,000 tons of ore annually.  It is suitable for copper mines with limited resources or those in the initial stages of development. The process flow must balance economic efficiency, flexibility, and environmental requirements.

The crushing system generally employs a two-stage closed-circuit process: coarse crushing is performed by a jaw crusher, followed by fine crushing with a cone crusher, combined with a vibrating screen to form a closed circuit, ensuring that the feed particle size is controlled to below 15mm. This configuration is compact and has low investment costs, making it suitable for small-scale production.

Grinding and classification typically utilize a single-stage ball mill combined with a spiral classifier or hydrocyclone, achieving a grinding fineness of approximately 60% passing -200 mesh to effectively liberate copper minerals. If the ore contains a significant amount of clay, a washing or screening pretreatment step can be added.

Flotation is the core process. For sulfide copper ore, a process of one roughing, two scavenging, and two to three cleaning stages is commonly used. Flotation equipment can include 6-10 small mechanically agitated flotation cells with a total volume of approximately 100-150 cubic meters. The reagent regime uses xanthate as a collector and lime to adjust the pH (controlled between 9 and 11), ensuring a copper recovery rate of over 80%.

The concentrate dewatering system includes a high-efficiency thickener with a diameter of 6-9 meters and a small filter press, reducing the moisture content of the concentrate to below 15% for easy storage and transportation. Tailings are discharged into a tailings pond via pipelines; a simple water recycling system is recommended to improve water resource utilization.