Flow pattern of wet particles discharging from a hopper
CHEN Pan
BIAN Caixia
CUI Xiaobo
WANG Liang
YUAN Zhulin
Abstract：Based on the discrete element method, the model of wet particles discharging from a hopper was constructed, and the relationship between the mass flow index (MFI) of a hopper and wet particle friction characteristics, hopper half angle, hopper outlet size and wall friction characteristics were studied.The results were compared with the predicted results of Jenike theory.The results show that wet particle-wall friction coefficient and hopper half angle have great influence on the flow pattern index MFI of the hopper.With the increase of the wall friction coefficient or the hopper half angle, the MFI value decreases, and the flow pattern can be changed from the mass flow to the funnel flow.The results are in agreement with those predicted by Jenike theory, but hopper outlet size, wet particle friction coefficient, Bonumber and the dimensionless water content have little effect on the MFI.
Keywords：wet particlesflow patternmass flow indexhopper
Publication Date：2019-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )