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提高铜精矿品位、降低SiO₂含量技术改造实践

Technical reform practice to enhance copper grade and reduce SiO₂ content in copper concentrate

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【Author】 Zhu Jianpeng1,Liu Ruiqiang1,Ma Yong1,Ren Yunchao2,Guo Hong3 ( 1. Refinery of Shandong Gold Mining Industry Co. ,Ltd. ( Laizhou) ; 2. Yantai Design and Research Co. ,Ltd. ,Shandong Gold Group; 3. Jilin Metallurgical Research Institue)

【机构】山东黄金矿业(莱州)有限公司精炼厂；山东黄金集团烟台设计研究工程有限公司；吉林省冶金研究院；

【摘要】铜精矿中SiO2质量分数达12.0%,严重地影响了冶炼生产及企业的经济效益。通过调整浮选药剂,采用高频细筛取代旋流器对铜精矿分级、改变再磨介质等措施提高磨矿细度,实现铜精矿w(Cu)>25%、w(SiO2)<8%,降低了冶炼生产成本,提高了企业经济效益。更多还原

【Abstract】 The mass fraction of SiO2 in copper concentrate of MRDL ore processing plant reached 12. 0 % ,and it influenced the economic benefits of smelting plant seriously. By adjusting the floatation agent,replacing the swirler with high-frequency fine sieve and changing the regrind media,the grinding fineness can be enhanced. Finally,the mass fraction of Cu in concentrate can reach 25 % ,while SiO2 content is lower than 8 % . The smelting cost is cut and the economic benefit is enhanced.更多还原