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工程科学学报.第44卷,第X期:1-10.2021年X月 Chinese Journal of Engineering,Vol.44,No.X:1-10,X 2021 https://doi.org/10.13374/j.issn2095-9389.2021.01.11.001;http://cje.ustb.edu.cn 金属矿尾砂浓密技术研究现状与展望 王洪江,2,彭青松),杨莹)区,郭佳宾) 1)北京科技大学土木与资源工程学院,北京1000832)北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 ☒通信作者,E-mail:monicayang1129@hotmail.com 摘要作为金属矿山膏体充填技术的首要环节,尾砂浓密技术能够显著提高尾砂脱水效率和尾砂利用率,是矿山绿色发展 的重要组成部分,在概述了尾砂浓密脱水技术发展历程的基础上,将浓密机发展阶段分为普通浓密机阶段、高效浓密机阶段 和膏体浓密机阶段,阐述了尾砂浓密工艺的应用现状和国内外几个典型的应用案例.介绍了对尾砂起捕捉作用的单一絮凝 理论和多重絮凝理论,静态动态压缩条件下的床层压缩理论与重力浓密理论,并阐述了各理论的最新研究进展.阐述了现阶 段尾砂浓密静态沉降实验、小型浓密实验和半工业浓密实验等主要研究方法,介绍了聚焦光束反射测量技术、颗粒录影显微 镜技术等先进的观测手段和尾砂浓密技术数值模拟研究现状.现阶段,尾砂浓密脱水技术仍处于发展阶段,存在尾砂浓密的 关键参数不稳定、尾砂浓密的生产调控不及时和尾砂浓密的信息平台不健全等问题,尾砂浓密技术的发展仍面临诸多挑战 最后提出了尾砂浓密技术个性化、自动化和智能化的发展方向. 关键词金属矿:尾砂:浓密设备:脱水工艺:浓密理论:数值模拟 分类号TD853 Research status and prospect of thickening technology for metal tailings WANG Hong-jiang2,PENG Qing-song,YANG Ying,GUO Jia-bin 1)School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Key Laboratory of High Efficient Mining and Safety of Metal Mines(Ministry of Education),University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:monicayang1129@hotmail.com ABSTRACT In recent years,paste technology has been rapidly promoted in domestic mines.It is a key technology for realizing green mining because it can effectively solve environmental and safety problems caused by mining.With the progress in science and technology,the research level of paste technology is constantly improving.Thickening technology of tailings is the primary procedure of paste backfill technology in metal mines,which can significantly improve the efficiency of tailings dewatering and utilization rate of tailings.Tailings thickening technology is an important part of the green development of mines.This paper presented a summary of the development process of tailings thickening and dewatering technology,dividing the development stage of the thickener into three:(1) ordinary thickener stage,(2)high-efficiency thickener stage,and (3)paste thickener stage.The application status of the thickening process of tailings and several typical application cases at home and abroad were also described.In addition,this paper explored different theories,including the single flocculation theory,multiple flocculation theory,bed compression theory under static/dynamic compression,and gravity thickening theory,along with the corresponding latest research progress of each theory.This paper also presented the main research methods of thickening of tailings,namely the static settlement experiment,small-scale thickening experiment,and semi-industrial thickening experiment.Advanced observational methods such as focused beam reflection measurement technology (FBRM)and particle video microscope technology (PVM)were also introduced.Moreover,the paper expounded on the 收稿日期:2021-01-11 基金项目:国家自然科学基金重点资助项目(51834001):中国博士后科学基金资助项目(2021M701516)金属矿尾砂浓密技术研究现状与展望 王洪江1,2),彭青松1),杨    莹1) 苣,郭佳宾1) 1) 北京科技大学土木与资源工程学院,北京 100083    2) 北京科技大学金属矿山高效开采与安全教育部重点实验室,北京 100083 苣通信作者, E-mail: monicayang1129@hotmail.com 摘    要    作为金属矿山膏体充填技术的首要环节,尾砂浓密技术能够显著提高尾砂脱水效率和尾砂利用率,是矿山绿色发展 的重要组成部分. 在概述了尾砂浓密脱水技术发展历程的基础上,将浓密机发展阶段分为普通浓密机阶段、高效浓密机阶段 和膏体浓密机阶段,阐述了尾砂浓密工艺的应用现状和国内外几个典型的应用案例. 介绍了对尾砂起捕捉作用的单一絮凝 理论和多重絮凝理论,静态/动态压缩条件下的床层压缩理论与重力浓密理论,并阐述了各理论的最新研究进展. 阐述了现阶 段尾砂浓密静态沉降实验、小型浓密实验和半工业浓密实验等主要研究方法,介绍了聚焦光束反射测量技术、颗粒录影显微 镜技术等先进的观测手段和尾砂浓密技术数值模拟研究现状. 现阶段,尾砂浓密脱水技术仍处于发展阶段,存在尾砂浓密的 关键参数不稳定、尾砂浓密的生产调控不及时和尾砂浓密的信息平台不健全等问题,尾砂浓密技术的发展仍面临诸多挑战. 最后提出了尾砂浓密技术个性化、自动化和智能化的发展方向. 关键词    金属矿;尾砂;浓密设备;脱水工艺;浓密理论;数值模拟 分类号    TD853 Research status and prospect of thickening technology for metal tailings WANG Hong-jiang1,2) ,PENG Qing-song1) ,YANG Ying1) 苣 ,GUO Jia-bin1) 1) School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China 2) Key Laboratory of High Efficient Mining and Safety of Metal Mines (Ministry of Education), University of Science and Technology Beijing, Beijing 100083, China 苣 Corresponding author, E-mail: monicayang1129@hotmail.com ABSTRACT    In recent years, paste technology has been rapidly promoted in domestic mines. It is a key technology for realizing green mining  because  it  can  effectively  solve  environmental  and  safety  problems  caused  by  mining.  With  the  progress  in  science  and technology, the research level of paste technology is constantly improving. Thickening technology of tailings is the primary procedure of paste backfill technology in metal mines, which can significantly improve the efficiency of tailings dewatering and utilization rate of tailings. Tailings thickening technology is an important part of the green development of mines. This paper presented a summary of the development process of tailings thickening and dewatering technology, dividing the development stage of the thickener into three: (1) ordinary  thickener  stage,  (2)  high-efficiency  thickener  stage,  and  (3)  paste  thickener  stage.  The  application  status  of  the  thickening process of tailings and several typical application cases at home and abroad were also described. In addition, this paper explored different theories,  including  the  single  flocculation  theory,  multiple  flocculation  theory,  bed  compression  theory  under  static/dynamic compression,  and  gravity  thickening  theory,  along  with  the  corresponding  latest  research  progress  of  each  theory.  This  paper  also presented  the  main  research  methods  of  thickening  of  tailings,  namely  the  static  settlement  experiment,  small-scale  thickening experiment, and semi-industrial thickening experiment. Advanced observational methods such as focused beam reflection measurement technology  (FBRM)  and  particle  video  microscope  technology  (PVM)  were  also  introduced.  Moreover,  the  paper  expounded  on  the 收稿日期: 2021−01−11 基金项目: 国家自然科学基金重点资助项目(51834001);中国博士后科学基金资助项目(2021M701516) 工程科学学报,第 44 卷,第 X 期:1−10,2021 年 X 月 Chinese Journal of Engineering, Vol. 44, No. X: 1−10, X 2021 https://doi.org/10.13374/j.issn2095-9389.2021.01.11.001; http://cje.ustb.edu.cn
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