Fractal and microscopic quantitative characterization of unclassified tailings flocs

doi:10.1007/s12613-020-2181-2

IMECH-IR > 非线性力学国家重点实验室

	Fractal and microscopic quantitative characterization of unclassified tailings flocs
	Zheng, Di 1,2; Song, Wei-dong 1,2; Tan, Yu-ye 1,2; Cao, Shuai 1,2; Yang, Zi-long 1,2; Sun LJ(孙立娟)1,2,3
通讯作者	Tan, Yu-ye(tanyuye@ustb.edu.cn)
发表期刊	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
	2021-09-01
卷号	28 期号:9 页码:1429-1439
ISSN	1674-4799
摘要	A series of laboratory investigations are conducted to analyze the effect of flocculant type on the spatial morphology and microstructural characteristics of flocs during the flocculation and settling of tailings. Four flocculant types (i.e., ZYZ, JYC-2, ZYD, and JYC-1) are considered in this study. The fractal characteristics and internal structures of tailings flocs with different flocculant types and settlement heights are analyzed by conducting scanning electron microscopy and X-ray micro-computed tomography scanning experiments based on the fractal theory. Results show that unclassified tailings flocs are irregular clusters with fractal characteristics, and the flocculation effect of the four flocculant types has the following trend: ZYZ > JYC-2 > ZYD > JYC-1. The size and average grayscale value of tailings flocs decrease with the increase in settlement height. The average grayscale values at the top and bottom are 144 and 103, respectively. The settlement height remarkably affects the pore distribution pattern, as reflected in the constructed three-dimensional pore model of tailings flocs. The top part of flocs has relatively good penetration, whereas the bottom part of flocs has mostly dispersed pores. The number of pores increases exponentially with the increase in settlement height. By contrast, the size of pores initially increases and subsequently decreases with the increase in settlement height.
关键词	tailings flocs fractal dimension settlement height grayscale value three-dimensional pore model
DOI	10.1007/s12613-020-2181-2
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000698381800003
关键词[WOS]	2-STEP FLOCCULATION PROCESS ; ORE ; BACKFILL
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
论文分区	二类
力学所作者排名	3+
RpAuthor	Tan, Yu-ye
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87466
专题	非线性力学国家重点实验室
作者单位	1.Univ Sci & Technol Beijing, Minist Educ, State Key Lab High Efficient Min & Safety Met Min, Beijing 100083, Peoples R China; 2.Univ Sci & Technol Beijing, Sch Civil & Resources Engn, Beijing 100083, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Di,Song, Wei-dong,Tan, Yu-ye,et al. Fractal and microscopic quantitative characterization of unclassified tailings flocs[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2021,28,9,:1429-1439.
APA	Zheng, Di,Song, Wei-dong,Tan, Yu-ye,Cao, Shuai,Yang, Zi-long,&孙立娟.(2021).Fractal and microscopic quantitative characterization of unclassified tailings flocs.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,28(9),1429-1439.
MLA	Zheng, Di,et al."Fractal and microscopic quantitative characterization of unclassified tailings flocs".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 28.9(2021):1429-1439.

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