Mathematic model of air-lift in borehole hydraulic jet mining
PEI Jiang-hong
LIAO Zhen-fang
Abstract：To get the pressure drop parameters for the design of air-lift in the borehole hydraulic jet mining,the model of three-phase flow was developed. Based on the theory of pressure energy consumption mining, a quite steady flow state of annular flow in lift was obtained. The model presented here integrated two sub-models of gas-liquid and gassolid to produce a design model for three-phase gas-liquid-solid in annular flow, which was adapted to exploit small and uniform diameter particles. The results show that calculated results agree well with the experimental data.
Keywords：borehole hydraulic jet miningair-lift modelpressure dropthree-phase flow
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 373-376 )