Abstract:In the tri-continuous copper smelting process of ‘oxygen-enriched side blown smelting + multi-lance top blown continuous converting smelting + anode refining’, the multi-lance top blown continuous converting furnace designed by China ENFI is the key equipment. In this paper, the structure and design of the multi-lance top blown continuous converting furnace are described in detail. It is believed that the multi-lance top blown continuous converting furnace and the continuous copper smelting process have broad application prospects for PS converter transformation of copper smelters and new copper smelting projects in the future.