Abstract:
The existing mineralization process faces multi-dimensional technical constraints: the traditional flotation system lacks an adaptive adjustment mechanism for feed characteristics, and the countercurrent mineralization process has the bottleneck of difficult to synergistically improve the mineralization efficiency and recovery; while the mechanical agitation and jet mineralization methods strengthen the phase-interfacial interaction, but they are accompanied by the inherent problems of high energy consumption intensity and insufficient turbulence field homogeneity. In order to make up for the shortcomings of these three methods, this study proposes a new mineralization technology by introducing turbulence-regulated particles, which can be adapted to the needs of different feed characteristics by adjusting the turbulence intensity, and focuses on the analysis of the effect of turbulence intensity on the mineralization process of fluidized bed flotation. The effect of the new mineralization environment on the coal slurry sorting effect was further investigated by analyzing the effect of changes in apparent water velocity and static bed height on the turbulence intensity. The results show that the newly proposed mineralization environment plays a decisive role in coal slurry sorting, and the adjustments of apparent water velocity and static bed height can significantly change the turbulence intensity, which makes the flotation effect of coal slurry of different particle sizes have differences.