The technological transformation of Baiyin Nonferrous Copper Company "spots into gold"
2024-02-22 15:10:57
Since 2018, Baiyin Nonferrous Metals Group Co., Ltd. Copper Company has continued to advance the technology of silver furnaces, and continuously adjusted and optimized the ratio of iron to silicon in the slag of silver furnaces. This technological change has greatly reduced the cost of slag separation, refining losses and yellow sand costs. To the effect of "pointing sand into gold".
Yellow sand is one of the components of silver-based copper smelting flux, which mainly plays the role of slagging, desulfurization and iron removal. The original blending amount is between 8% and 11%, and the annual consumption is about 110,000 tons. Baiyin Nonferrous Copper Co., Ltd. borrowed the experience of other smelting processes to carry out technical test research on Fe / SiO2 of Baiyin furnace slag. At the beginning of 2018, Baiyin Nonferrous Copper Company carefully screened and demonstrated the incremental project of Fe / SiO2 test research technology of Baiyin furnace slag A technical test team with a smelting workshop and a technical center as the main body and a silver furnace technical expert as the backbone has developed a technical incremental assessment method and implementation plan. Through multiple metallurgical calculations, phase analysis, heat balance tests, and operation methods Explore and optimize the control system. On the premise of ensuring the safety and stability of the silver furnace and efficient production, the Fe / SiO2 of the silver furnace slag will be increased from 1.0 to 1.2 to 1.35 and gradually move towards the 1.5 goal. This technological change has solved six major problems: large amount of silver slag, large heat loss, large processing cost per ton of copper, large loss of valuable metals, large processing cost of slag selection system, and high labor intensity of post employees.
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