Experiences in using gas dispersion measurements to evaluate metallurgical performance of scavenger cleaner and recleaner circuit at Vale's Thompson Mill

作     者：刘洪均 张炜 孙春宝 

作者机构：School of Civil and Environmental Engineering University of Science and Technology Beijing Department of Business Administration Chinalco China Copper Corporation Limited 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2014年第21卷第10期

页      面：3955-3962页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 0806[工学-冶金工程] 080601[工学-冶金物理化学] 

基　　金：Project(2012BAB14B05)supported by National Key Technology Research and Development Program of the Ministry of Science and Technology of China 

主　　题：bubble size bubble size distribution bubble surface area flux gas dispersion 

摘      要：The performance of a flotation circuit is largely the result of the operator s response to visual clues. This includes manipulation of the gas input and how it is distributed to cells in a bank. A new gas dispersion technology was presented which was conducted to perform characterization tests in Outokumpu 30 m3 and 50 m3 flotation cells installed at Thompson Vale s concentrator, and subsequent data analysis. The experimental program was designed to establish as-found baseline conditions for each cell of the two-parallel banks in the scavenger-cleaner and recleaner circuit, to select and characterize one typical cell in the two banks with either different frother concentrations or different air flow rates, and establish what variables can be manipulated in future characterization work. A three-parameter model was developed in order to link the bubble size and frother concentration. This relationship can be used to correlate gas dispersion change to improved metallurgical performance.