40TPH Tantalum-Niobium Ore Beneficiation Plant In Congo

Alluvial Ta-Nb Beneficiation Flow

• Run-of-mine ore (≤120 mm) enters the trommel scrubber for washing and desliming, separating the stones. It is equipped with a double-layer screen (apertures of 2 mm and 25 mm). Rocks larger than 25 mm are discharged and conveyed to the side.
• Material smaller than 2 mm enters a centrifugal concentrator to produce Concentrate 1.
• Material sized between 2 mm and 25 mm enters a jig separator (with a 2 mm screen aperture) to produce Concentrate 2.
• Tailings from the centrifugal concentrator enter a sluice box for further recovery, producing Concentrate 3.
• The jig undersize (0–2 mm) and sluice tailings are combined and fed into a spiral sand washer for dewatering, then transported out via belt conveyor.
• The spiral sand washer overflow enters a settling pond, while tailings are discharged to the tailings storage facility.

Hard-Rock Ta-Nb Beneficiation Flow

• Oversized material (2–25 mm) from the jig separator is conveyed to a hammer crusher and crushed to a size below 5 mm.
• Subsequently, it enters a ball mill and is ground to a particle size of 0–1 mm.
• The 0–1 mm material is fed onto a shaking table for separation to recover Concentrate 4.

The concentrate is first dried and then fed into a three-disc magnetic separator to separate iron, non-magnetic minerals, and the final tantalum-niobium concentrate.