Influence of ore size on the production of micro-sized ore particles by high-pressure gas rapid unloading

doi:10.1016/j.powtec.2023.118716

IMECH-IR > 流固耦合系统力学重点实验室

	Influence of ore size on the production of micro-sized ore particles by high-pressure gas rapid unloading
	Zhang GH(张耕豪); Fan YB(范永波); Yang, Renshu ; Li SH(李世海)
发表期刊	POWDER TECHNOLOGY
	2023-09-01
卷号	427 页码:118716
ISSN	0032-5910
摘要	Comminution of ore is a critical and energy-intensive process in mineral resource utilization. High-pressure gas rapid unloading (GRU) has emerged as a promising ore grinding technique, wherein high-pressure gas is injected into the ore and is unloaded at high speed to induce tensile failure inside the ore. Although the GRU is capable to achieve more efficient ore comminution with lower energy consumption compared to conventional methods, it is still in the early stages of development. The pulverization effect of different size ores is a crucial question needing to be revealed before the GRU industrial application. This study explores the impact of ore size on ore pulverization by GRU, using kaolin as an experimental material. Specifically, we discuss the following: 1. the impact of ore size on high-pressure gas infiltration, 2. the effect of infiltration time on ore pulverization, and 3. the effect of ore size on GRU-pulverized ore. The results indicate that the GRU pulverization method is highly applicable to kaolin, and different ore sizes have minimal effects on ore pulverization. Finally, we explain the insignificant size effect of GRU-pulverized ore by discussing the ore material length scale, deformation scale, and ore size. The conclusion may provide a basis for extending the GRU method from the experimental lab scale to a larger one. It may also provide a reference for applying GRU in kaolin comminution.
关键词	High-pressure gas Rapid unloading Kaolin pulverization Ore size Size effects
DOI	10.1016/j.powtec.2023.118716
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001022407600001
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
项目资助者	National Natural Science Foundation of China [51934001]
论文分区	二类/Q1
力学所作者排名	2
RpAuthor	Yang, RS (corresponding author), Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92563
专题	流固耦合系统力学重点实验室
作者单位	1.{Zhang, Genghao, Yang, Renshu} Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China 2.{Fan, Yongbo, Li, Shihai} Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang GH,Fan YB,Yang, Renshu,et al. Influence of ore size on the production of micro-sized ore particles by high-pressure gas rapid unloading[J]. POWDER TECHNOLOGY,2023,427:118716.
APA	张耕豪,范永波,Yang, Renshu,&李世海.(2023).Influence of ore size on the production of micro-sized ore particles by high-pressure gas rapid unloading.POWDER TECHNOLOGY,427,118716.
MLA	张耕豪,et al."Influence of ore size on the production of micro-sized ore particles by high-pressure gas rapid unloading".POWDER TECHNOLOGY 427(2023):118716.

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