矿产保护与利用2024，Vol.44Issue(6)：97-102,6.DOI:10.13779/j.cnki.issn1001-0076.2024.08.021
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
摘要
Abstract
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 a Φ150mm 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Key words
gold tailings/coarse and fine classification/ceramic raw materials/fine particle filling/resource utilization分类
矿业与冶金引用本文复制引用
周文涛,高文昊,吕宪俊,王俊祥,张晖..金尾矿粗粒制备陶瓷原料—细粒胶结充填实验研究[J].矿产保护与利用,2024,44(6):97-102,6.基金项目
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) （BGRIMM-KJSKL-2023-16）
河南省基础教育教学研究项目(JCJYB2307010040) （JCJYB2307010040）
