提高某铜锡共生多金属矿铜硫浮选系统指标生产实践

云南某铜锡共生多金属矿矿石性质复杂,以回收金属铜、锡和硫为主。随着矿山的不断开发,铜的氧化率升高,铜的可选性变差,导致铜硫浮选系统精矿中铜的回收指标不理想。根据现场实际情况,详细分析铜硫浮选系统存在的问题,现场采取优化旋流器选型与工作参数、改进铜硫混合粗扫选设备配置与药剂制度、调整铜硫分离药剂制度和塔磨磨矿介质添加量等措施,使得铜精矿中铜品位提高了3.34个百分点,回收率提高了3.76个百分点,实现了铜硫浮选系统达产达标,为矿山取得了较好的经济效益。

Production practice for improving copper-sulfur flotation system index of a symbiotic and polymetallic ore containing copper and tin

A symbiotic and polymetallic ore containing copper and tin in Yunnan province is complex and the metallic copper and tin, and sulfur were mainly recovered. The oxidation rate of copper has increased and the recovery of copper has become difficult with continuous exploitation of the ore. Therefore, it was unsatisfactory that copper-sulfur flotation separation was carried out to obtain a qualified concentrate. The problems existing in the copper-sulfur flotation system were analyzed in detail according to the practical production. It was proposed to optimize the cyclone selection and operating parameters, to improve equipment configuration and reagent system in bulk roughers, to adjust reagent system in copper-sulfur separation roughers and the amount of grinding medium that were added into tower mill. The Cu grade and recovery in copper concentrate were improved by 3.34% and 3.76%, respectively. The copper-sulfur flotation system reaches the designed standard and an excellent economic benefits for the mine was achieved.