Smelting Furnace (S-Furnace)

Dried concentrate and flux materials like silica sand are injected into S-furnace through vertical lances and oxidized with oxygen-enriched air to produce molten matte and slag, and their mixture overflows from the S-furnace down to the CL-furnace through launder.

Slag Cleaning Furnace (Cl-Furnace)

CL-furnace is heated by two sets of delta type electrode (2100 &1500 KVA). Matte is separated from slag by difference of specific gravity. Slag is overflowed, water-granulated and sold to cement industry while molten matte (Cu 68%) is constantly siphoned out and transferred to the C-furnace through launder.

Converting Furnace (C -Furnace)

Matte and flux (limestone) are reacted with oxygen-enriched air to form blister copper and then separated from the slag by difference of specific gravity. Slag (Cu14%) is returned to S-furnace, and blister copper is siphoned out and forwarded to Anode furnaces.

Anode Furnace

Blister copper from C-furnace is delivered into one of Anode furnaces by using switching launder system. In this furnace, oxidation and reduction reactions are occurred to produce refined copper ready for casting.

Hazelett Caster

Refined copper from Anode furnace is cast continuously into copper strip by a Hazelett Twin Belt Caster. This continuous copper strip is cut into anode pieces by a hydraulic shearing machine