MA Liqiang;SUN Xianfeng;HUANG Gen;YU Yuexian;

• 1:School of Chemical and Environmental Engineering
• 2:China University of Mining and Technology(Beijing)

Abstract：

Coal slime conditioning is an important link before flotation.In order to get a comprehensive understanding of coal conditioning,the mechanism and development history of coal slime conditioning in China were elaborated.Bench-scale test and industrial application of BGT surface-modification conditioning machine were stated to analyse the effect of coal slime conditioning. The main mechanisms of coal slime conditioning includes reagent dispersion,effective collisions between particles,reagents and surface cleaning.The development of coal slime conditioning equipment has gone through from the simple mixing tank to further enhance pulp preparation tank,pulp pre-processor,and then to surface modified slurry machine which has better mineralization. The data of laboratory and industrial tests illustrates that strengthening the conditioning can dramatically improve the coal flotation effect.Sufficient conditioning plays a key role in flotation.

Key Words： coal slime conditioning;conditioning mechanism;development;industrial application

Abstract:

Keywords:

Foundation: 国家自然科学基金资助项目(51504262)

Authors: MA Liqiang;SUN Xianfeng;HUANG Gen;YU Yuexian;

DOI: 10.13226/j.issn.1006-6772.2018.01.001

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