Mining Engineering CircleKongo-Kinshasa2026-10-21

DR Congo mill expansion: add ball mill or screening first?

S

Samuel O.

Verifiziertes Mitglied · Servicetechniker

Today we run two crushing stages plus one ball mill at 800 t/day and want 1,200 t.

We suspect screening: the undersize runs coarse, mill feed is too big and throughput stalls.

Budget covers one stage only. If we add screening first, will the mill choke even more?

Discussion (3)

  • Paulo M.Verifiziertes Mitglied · Projektleiter Ingenieur2026-10-22

    Start with a screening efficiency test. If undersize is more than 15% coarse, screens and spray water both need work, and the fix is cheap.

  • Mwila K.Verifiziertes Mitglied · Bergbau-Gerätemanager2026-10-23

    We expanded screening first and mill throughput rose 18%, but the feed bin was too small and we had to add a conveyor later. Count both.

  • Chanda M.Verifiziertes Mitglied · Servicetechniker2026-10-24

    Adjust mill liners and ball charge at the same time; screening alone will not lift output while the mill stays under-loaded.

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