金尾矿粗粒制备陶瓷原料—细粒胶结充填实验研究  

Experimental Study on Ceramic Raw Material Preparation with Coarse−grained Gold Tailings and Cemented Filling with Fine−grained Gold Tailings

作　　者：周文涛 高文昊[2] 吕宪俊 王俊祥[2] 张晖[4] ZHOU Wentao;GAO Wenhao;LYU Xianjun;WANG Junxiang;ZHANG Hui(State Key Laboratory of Mineral Processing Science and Technology Mining and Metallurgy Technology Group Co.,Ltd.,Beijing 102628,China;School of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,Shandong,China;School of Chemistry and Bioengineering,Shandong University of Science and Technology,Qingdao 266590,Shandong,China;Teacher Development Research Center of Education and Sports Bureau of Guancheng Hui Autonomous Region,Zhengzhou 450000,Henan,China)

机构地区：[1]矿物加工科学与技术国家重点实验室矿冶科技集团有限公司,北京102628 [2]山东科技大学能源与矿业工程学院,山东青岛266590 [3]山东科技大学化学与生物工程学院,山东青岛266590 [4]郑州市管城回族自治区教体局教师发展研究中心,河南郑州450000

出　　处：《矿产保护与利用》2024年第6期97-102,共6页Conservation and Utilization of Mineral Resources

基　　金：矿物加工科学与技术国家重点实验室开放基金自助项目(BGRIMM−KJSKL−2023−16);河南省基础教育教学研究项目(JCJYB2307010040)。

摘　　要：以金尾矿为主要原料,采用分级−磁选工艺对其进行了“粗细分级—粗粒制备陶瓷原料、细粒充填”实验研究。结果表明,采用Φ150 mm旋流器,在金尾矿给矿质量浓度为28.28%的条件下,实现了底流中+325目含量92.83%、溢流中−325目含量96.09%的有效分级。底流物料经过一段弱磁选—两段强磁选工艺后能够获得白度59.09%、氧化铁含量0.15%、产率58.98%的长石石英产品,有效地实现除铁提质增白效果,满足陶瓷用瓷石轻工行业标准要求。针对溢流物料,当灰砂比在1∶10、料浆质量浓度在65%以上时可满足胶结充填要求,28 d抗压强度为1 MPa。实验研究结果可为金尾矿资源化利用价值提供指导。This study investigates the utilization of gold tailings as raw materials through a process involving classification and magnetic separation.The specific approach involves“coarse−fine classification—coarse particle preparation for ceramic raw materials,fine particle filling.”The results demonstrate that effective classification can be achieved using aΦ150mm cyclone with a feed concentration of 28.28%,resulting in an underflow with+325 mesh content of 92.83%and an overflow with−325 mesh content of 96.09%.After undergoing a two−stage magnetic separation process(weak magnetic separation followed by strong magnetic separation),the underflow yields feldspar−quartz product with a whiteness of 59.09%,iron oxide content of 0.15%,and a recovery rate of 58.98%.This process effectively improves the quality,removes iron impurities,and enhances the whiteness of the product,meeting the industry standards for ceramic porcelain.Regarding the overflow material,a slurry concentration of 65%or higher and a cement−sand ratio of 1:10 can meet the requirements for cemented filling,achieving a compressive strength of 1 MPa after 28 days.The findings of this research can guide the resource utilization of gold tailings.

关 键 词：金尾矿 粗细分级 陶瓷原料 细粒充填 资源化利用 

分 类 号：TD926.4[矿业工程—选矿] TD835.34