中南大学学报（自然科学版）2025，Vol.56Issue(5)：1711-1720,10.DOI:10.11817/j.issn.1672-7207.2025.05.001
铁矿粉基本特性对其湿式磨矿—沉降—过滤性能的影响机制
Influence mechanism of basic characteristics of iron ore fines on its wet grinding-sedimentation-filtration performance
摘要
Abstract
Five types of iron ore fines(AM,AP,BC,BS,SM)were taken as research objects and based on the analysis of their fundamental physicochemical characteristics,including microhardness,loose bulk density,and maximum hygroscopic moisture content.The wet milling-sedimentation-filtration behaviors and their influencing factors were also investigated.Intrinsic relationships between the fundamental characteristics of iron ore fines and their wet milling efficiency,settling velocity,and filtration performance were established.The results demonstrate that the bond work index of iron ore fines exhibits a linear positive correlation with their microhardness(HV)-higher hardness.The settling velocity of fines is directly proportional to their loose bulk density and inversely proportional to the natural packing porosity of the particle bed the iron ore;fines with higher bulk density and lower bed porosity demonstrate faster sedimentation.Regarding filtration performance,it shows significant correlations with particle morphology,packing porosity,and maximum molecular moisture content:lower particle porosity leads to maximum molecular moisture content,thereby improving filtration efficiency.This study provides theoretical guidance for pelletizing plants to ore procurement,optimize ore blending strategies and enhance the wet milling-sedimentation-filtration performance in iron ore beneficiation.关键词
铁矿石/湿磨/沉降/过滤Key words
iron ore/wet grinding/sedimentation/filtration分类
矿业与冶金引用本文复制引用
杨聪聪,侯德楠,朱德庆,郭正启,胡博厚,付豪..铁矿粉基本特性对其湿式磨矿—沉降—过滤性能的影响机制[J].中南大学学报（自然科学版）,2025,56(5):1711-1720,10.基金项目
广西创新驱动发展专项(2024AA08010-2) （2024AA08010-2）
湖南省重点研发计划项目(2022SK2075)(Project(2024AA08010-2)supported by the Innovation-Driven Development Special Project of Guangxi Province （2022SK2075）
Project(2022SK2075)supported by the Major Research and Development Project of Hunan province) （2022SK2075）
