Sou Hu Cai Jing·2025-06-24 21:43Core Insights - A significant innovation in copper smelting technology has been introduced by China Aluminum International Engineering Corporation's Changsha Institute of Nonferrous Metallurgy, leading the industry's green transformation [1][3] - The newly developed ultra-large dual-smelting furnace continuous copper smelting technology addresses multiple core technical challenges and significantly enhances low-carbon and clean production standards in copper smelting [1][3] Industry Summary - The copper smelting industry faces challenges such as complex raw material structures, rising processing costs, and stringent environmental regulations, necessitating new technologies that enable large-scale production while achieving efficient low-carbon and low-cost operations [3] - The oxygen-enriched top-blown dual-smelting process shows clear advantages in low-carbon and efficiency, but its application in ultra-large copper smelting projects has been limited due to the challenges of large-scale core equipment [3] Company Summary - Changsha Institute has successfully overcome several technical bottlenecks, including thermal expansion of refractory materials, slagging in the smelting flue gas system, and metal leakage from the bottom of the refining furnace [3] - The institute has developed the world's first 70-square-meter oxygen-enriched continuous smelting equipment and 120-square-meter multi-gun top-blown continuous refining equipment, pioneering a dual-smelting furnace continuous copper smelting technology with an annual production capacity exceeding 400,000 tons [3] - This breakthrough technology has been industrially applied in the second phase of the Guangxi Nanguo Copper Industry project, operating stably for nearly two years, with energy consumption for crude copper smelting reduced to 85 kilograms of standard coal per ton, significantly outperforming the industry average [3]