摘要
在矿物加工过程中磨矿环节占据核心地位,其对矿物的表面特性和矿浆特性产生显著影响,从而进一步影响矿物的浮选行为。磨矿过程不仅有助于矿物的充分单体解离,还会对矿物的表面特性、表面粗糙度、比表面积和颗粒形貌等方面产生显著的影响,同时,磨矿过程也会对矿浆性质产生影响,如矿浆的pH值、矿浆中金属离子浓度、矿浆中溶解氧含量、矿浆中的电化学效应等,这些变化直接影响矿物与浮选药剂的相互作用及分选效果。研究表明,磨矿介质种类、介质形状、介质配比、助磨剂等因素会对磨矿产品粒度特性以及对浮选产生很大的影响,特别是磨矿方式(如干磨、湿磨或球磨等)对矿物表面物理化学特性的影响存在差异,进而影响矿物的浮选性能。本文综述了磨矿对矿浆性质和矿物表面性质的影响,探讨了不同磨矿方式及过程参数对矿物浮选行为的作用机制。
The grinding process occupies a core position in mineral processing.It has a significant impact on the surface properties of minerals and the characteristics of the slurry,which in turn further affect the flotation behavior of the minerals.The grinding process not only helps to achieve full monomer dissociation of the minerals,but also has a significant impact on their surface properties,surface roughness,specific surface area,and particle morphology.At the same time,the grinding process also affects the properties of the slurry,such as the pH value,metal ion concentration,dissolved oxygen content,and electrochemical effects in the slurry.These changes directly affect the interaction between minerals and flotation reagents,as well as the separation efficiency.Research shows that factors such as the type of grinding media,the shape of the media,the media ratio,slurry concentration,and mill filling rate can significantly impact the particle size characteristics of the grinding product and flotation performance.In particular,the grinding method(such as dry grinding,wet grinding,or ball milling)affects the physical and chemical properties of the mineral surface differently,thereby influencing the flotation properties of the minerals.This paper reviews the impact of grinding on slurry properties and mineral surface characteristics.
作者
杨启帆
邰文吉
李闯
肖坤富
尤宇浩
YANG Qifan;TAI Wenji;LI Chuang;XIAO Kunfu;YOU Yuhao(Suzhou Sinoma Design and Research Institute of Non-metallic Minerals Industry Co.,Ltd.,Suzhou 215151,China;National Engineering Technology Research Center for Further Processing of Non-metallic Minerals,Suzhou 215151,China;School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China;School of Materials Science and Engineering,Shenyang Ligong University,Shenyang 110159,China)
出处
《有色设备》
2025年第3期43-53,共11页
Nonferrous Metallurgical Equipment
关键词
磨矿
浮选行为
矿浆性质
矿物表面性质
助磨剂
grinding
flotation behavior
properties of mineral slurry
properties of mineral surface
grinding aid
